Remove libass from repository

44 files changed, 0 insertions, 12369 deletions

diff --git a/lib/libass/COPYING b/lib/libass/COPYING
deleted file mode 100644
index 8351a30e3a..0000000000
--- a/lib/libass/COPYING
+++ /dev/null
@@ -1,11 +0,0 @@
-Permission to use, copy, modify, and/or distribute this software for any
-purpose with or without fee is hereby granted, provided that the above
-copyright notice and this permission notice appear in all copies.
-
-THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/lib/libass/Changelog b/lib/libass/Changelog
deleted file mode 100644
index ef31e60586..0000000000
--- a/lib/libass/Changelog
+++ /dev/null
@@ -1,109 +0,0 @@
-libass (0.10.0)
- * Bidirectional layout and Arabic shaping via FriBidi (GC #13)
- * OpenType shaping via HarfBuzz-ng (GC #13)
- * Add API for shaper configuration
- * Add support for `Language' Script Info property, this can be used for
-   hinting the text language
- * Vertical layout improvements
-   * Use `vert' and `vkna' OpenType features for vertical glyph variants
-   * Position rotated glyphs onto baseline
- * Parse font encoding property for base text direction hinting
- * Refactor cache system
- * Use generic outlines in place of FreeType glyphs
- * Direct outline bitmap rendering
- * Fix whitespace trimming (GC #35)
- * Do not render border if there's no shadow or glyph (GC #29)
- * Adjust spacing after a italic to non-italic style change (GC #37)
- * Fix fade timing
- * Fix x positioning with borders (GC #27)
- * Build system tweaks
-
-libass (0.9.12)
- * Switch to permissive (ISC) license
- * Support \fs+ and \fs- syntax for modifying font size
- * Fix word-wrapping
- * Improved charmap fallback matching
- * Handle a few more VSFilter quirks correctly
- * Add a sensible default style
- * Fix compilation against libpng 1.5
-
-libass (0.9.11)
- * Fix serious memory leaks
- * Reduce frame/drawing initialization overhead
-
-libass (0.9.10)
- * Basic (incorrect, but working) support for @font vertical text layout
- * Fix multiple faces per font attachment
- * charmap selection fixes
- * Add ass_flush_events API function
- * Improve fullname font matching
- * Better PAR correction if text transforms are used
- * Calculate drawing bounding box like VSFilter
- * Performance improvements
-   * Cache vector clip masks
-   * Avoid unnecessary glyph copies
- * Various rendering fixes
-
-libass (0.9.9)
- * Parse numbers in a locale-independent way
- * Remove support for freetype < 2.2.1, fontconfig < 2.4.1; this especially
-   means libass will not extract fonts into the file system anymore
- * Disable script file size limit
- * Match fonts against the full name ("name for humans")
- * Reset clip mode after \iclip
- * Improve VSFilter compatibility
- * Update API documentation
- * A couple of smaller fixes and cleanups
-
-libass (0.9.8)
- * Support \q override tag
- * Support wrap style 1 (i.e. wrap, but do not equalize line lengths)
- * Support border style 3 (opaque box)
- * Use the event bounding box (instead of vertical position and height) for
-   collision detection
- * Embold glyphs if no bold variant is available, but was requested
- * Modify \fax to be similar to VSFilter
- * Trim spaces after line wrapping
- * Fix border/shadow overlap combining in some cases
- * Disable kerning by default.  Use "Kerning=yes" style override or
-   "Kerning: yes" in [Script Info] to enable it
- * Slight bitmap handling optimizations
- * Various bugfixes
-
-libass (0.9.7)
- * Build system fixes
- * Fixed cache lookup and overload problems
- * All globals have been eliminated, libass is reentrant
- * Dynamically allocate glyph and line buffers
- * Fix up stroking of big borders
- * Support empty lines (\N\N)
- * Support for the following override tags:
-   \fax, \fay, \xshad, \yshad, \ybord, \xbord, \iclip, \u, \s, \p, \pbo
- * Full subpixel accuracy for positioning
- * PAR and rotation correction for EOSD rendering
- * Drawing mode (including vector \clip and \iclip)
- * Fixed a few memory leaks
- * Removed MPlayer compatibility code
- * Introduced message handling callback
- * Various fixes to match VSFilter quirks and Windows font metrics
- * Lots of bugfixes
-
-LibASS (0.9.6)
- * Various fixes and updates to match VSFilter renderer.
- * Support \blur tag and ScaledBordersAndShadow property.
- * Fractional arguments and subpixel accuracy.
- * Keep positions when pan-and-scan is used.
- * Lots of bugfixes and other changes.
-
-LibASS (0.9.5)
- * Support '=' and '.' in style name in arguments to ass_set_style_overrides().
- * Allow overriding [Script Info] parameters with ass_set_style_overrides().
- * Add workarounds for some buggy fonts.
- * Remove buggy workarounds for some other fonts.
- * Fixed ass_set_line_spacing() (was broken before).
- * Negative margin sizes are now used for image cropping.
- * Better handling of behind-the-camera objects.
- * Case insensitive parsing of SSA/ASS section headers.
- * Improved font matching.
- * When 2 styles have the same name, the later one is used.
- * Fixed several other bugs.
diff --git a/lib/libass/Makefile.am b/lib/libass/Makefile.am
deleted file mode 100644
index 5a17a08309..0000000000
--- a/lib/libass/Makefile.am
+++ /dev/null
@@ -1,13 +0,0 @@
-ACLOCAL_AMFLAGS = -I m4
-AUTOMAKE_OPTIONS = foreign
-EXTRA_DIST = libass.pc.in Changelog
-
-pkgconfigdir = $(libdir)/pkgconfig
-pkgconfig_DATA = libass.pc
-
-if HAVE_LIBPNG
-    test = test
-endif
-
-SUBDIRS = libass $(test)
-
diff --git a/lib/libass/configure.ac b/lib/libass/configure.ac
deleted file mode 100644
index 35548c6291..0000000000
--- a/lib/libass/configure.ac
+++ /dev/null
@@ -1,118 +0,0 @@
-AC_INIT(libass, 0.10.0)
-AM_INIT_AUTOMAKE
-AC_CONFIG_MACRO_DIR([m4])
-# Disable C++/Fortran checks
-define([AC_LIBTOOL_LANG_CXX_CONFIG], [:])
-define([AC_LIBTOOL_LANG_F77_CONFIG], [:])
-AC_PROG_LIBTOOL
-AC_CONFIG_SRCDIR([libass/ass.c])
-AC_CONFIG_HEADER([config.h])
-
-# Checks for programs.
-AC_PROG_CC
-AC_PROG_CPP
-AM_PROG_CC_C_O
-
-# Checks for header files.
-AC_HEADER_STDC
-AC_HEADER_STDBOOL
-AC_CHECK_HEADERS([inttypes.h stdint.h stdlib.h string.h sys/time.h unistd.h iconv.h])
-
-# Checks for typedefs, structures, and compiler characteristics.
-AC_C_CONST
-AC_C_INLINE
-AC_TYPE_INT64_T
-AC_TYPE_SIZE_T
-AC_TYPE_UINT32_T
-AC_TYPE_UINT8_T
-
-# Checks for library functions.
-AC_CHECK_FUNCS([mkdir strcasecmp strdup strtol])
-
-# Checks for libraries.
-AC_SEARCH_LIBS([iconv_open], [iconv], AC_DEFINE(CONFIG_ICONV, 1, [use iconv]))
-AC_CHECK_LIB([m], [fabs])
-
-# Check for libraries via pkg-config
-AC_ARG_ENABLE([test], AS_HELP_STRING([--enable-test],
-    [enable test program (requires libpng) @<:@default=no@:>@]))
-AC_ARG_ENABLE([enca], AS_HELP_STRING([--disable-enca],
-    [disable enca (charset autodetect) support @<:@default=check@:>@]))
-AC_ARG_ENABLE([fontconfig], AS_HELP_STRING([--disable-fontconfig],
-    [disable fontconfig support @<:@default=enabled@:>@]))
-AC_ARG_ENABLE([harfbuzz], AS_HELP_STRING([--disable-harfbuzz],
-    [disable HarfBuzz support @<:@default=check@:>@]))
-
-PKG_CHECK_MODULES([FREETYPE], freetype2 >= 9.10.3, [
-    CFLAGS="$CFLAGS $FREETYPE_CFLAGS"
-    LIBS="$LIBS $FREETYPE_LIBS"
-    AC_DEFINE(CONFIG_FREETYPE, 1, [found freetype2 via pkg-config])
-    ])
-
-PKG_CHECK_MODULES([FRIBIDI], fribidi >= 0.19.0, [
-    CFLAGS="$CFLAGS $FRIBIDI_CFLAGS"
-    LIBS="$LIBS $FRIBIDI_LIBS"
-    AC_DEFINE(CONFIG_FRIBIDI, 1, [found fribidi via pkg-config])
-    ])
-
-if test x$enable_fontconfig != xno; then
-PKG_CHECK_MODULES([FONTCONFIG], fontconfig >= 2.4.2, [
-    CFLAGS="$CFLAGS $FONTCONFIG_CFLAGS"
-    LIBS="$LIBS $FONTCONFIG_LIBS"
-    AC_DEFINE(CONFIG_FONTCONFIG, 1, [found fontconfig via pkg-config])
-	fontconfig=true
-    ])
-fi
-
-if test x$enable_harfbuzz != xno; then
-PKG_CHECK_MODULES([HARFBUZZ], harfbuzz >= 0.7.0, [
-    CFLAGS="$CFLAGS $HARFBUZZ_CFLAGS"
-    LIBS="$LIBS $HARFBUZZ_LIBS"
-    AC_DEFINE(CONFIG_HARFBUZZ, 1, [found harfbuzz-ng via pkg-config])
-	harfbuzz=true
-    ], [harfbuzz=false])
-fi
-
-if test x$enable_enca != xno; then
-PKG_CHECK_MODULES([ENCA], enca, [
-    CFLAGS="$CFLAGS $ENCA_CFLAGS"
-    LIBS="$LIBS $ENCA_LIBS"
-    AC_DEFINE(CONFIG_ENCA, 1, [found enca via pkg-config])
-	enca=true
-	], [enca=false])
-fi
-
-libpng=false
-if test x$enable_test = xyes; then
-PKG_CHECK_MODULES([LIBPNG], libpng >= 1.2.0, [
-    CFLAGS="$CFLAGS $LIBPNG_CFLAGS"
-    AC_DEFINE(CONFIG_LIBPNG, 1, [found libpng via pkg-config])
-    libpng=true])
-fi
-
-AM_CONDITIONAL([HAVE_LIBPNG], [test x$libpng = xtrue])
-
-# add libraries/packages to pkg-config for static linking
-pkg_libs="-lm"
-pkg_requires="freetype2 >= 9.6.3"
-pkg_requires="fribidi >= 0.19.0, ${pkg_requires}"
-if test x$enca = xtrue; then
-    pkg_requires="enca, ${pkg_requires}"
-fi
-if test x$fontconfig = xtrue; then
-    pkg_requires="fontconfig >= 2.2.0, ${pkg_requires}"
-fi
-if test x$harfbuzz = xtrue; then
-    pkg_requires="harfbuzz >= 0.7.0, ${pkg_requires}"
-fi
-
-AC_SUBST([PKG_LIBS_DEFAULT], [$(test x$enable_shared = xno && echo ${pkg_libs})])
-AC_SUBST([PKG_REQUIRES_DEFAULT], [$(test x$enable_shared = xno && echo ${pkg_requires})])
-AC_SUBST([PKG_LIBS_PRIVATE], [$(test x$enable_shared = xno || echo ${pkg_libs})])
-AC_SUBST([PKG_REQUIRES_PRIVATE], [$(test x$enable_shared = xno || echo ${pkg_requires})])
-
-# Setup output beautifier.
-m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
-
-AC_CONFIG_FILES([Makefile libass/Makefile test/Makefile libass.pc])
-AC_OUTPUT
diff --git a/lib/libass/libass.pc.in b/lib/libass/libass.pc.in
deleted file mode 100644
index e08783516b..0000000000
--- a/lib/libass/libass.pc.in
+++ /dev/null
@@ -1,13 +0,0 @@
-prefix=@prefix@
-exec_prefix=@exec_prefix@
-libdir=@libdir@
-includedir=@includedir@
-
-Name: libass
-Description: LibASS is an SSA/ASS subtitles rendering library
-Version: @PACKAGE_VERSION@
-Requires: @PKG_REQUIRES_DEFAULT@
-Requires.private: @PKG_REQUIRES_PRIVATE@
-Libs: -L${libdir} -lass @PKG_LIBS_DEFAULT@
-Libs.private: @PKG_LIBS_PRIVATE@
-Cflags: -I${includedir}
diff --git a/lib/libass/libass/Makefile.am b/lib/libass/libass/Makefile.am
deleted file mode 100644
index 142de68fbb..0000000000
--- a/lib/libass/libass/Makefile.am
+++ /dev/null
@@ -1,21 +0,0 @@
-AM_CFLAGS = -Wall
-
-LIBASS_LT_CURRENT = 5
-LIBASS_LT_REVISION = 0
-LIBASS_LT_AGE = 1
-
-lib_LTLIBRARIES = libass.la
-libass_la_SOURCES = ass.c ass_cache.c ass_font.c ass_fontconfig.c ass_render.c \
-                    ass_utils.c ass_bitmap.c ass_library.c ass_bitmap.h \
-                    ass_cache.h ass_fontconfig.h ass_font.h ass.h \
-                    ass_library.h ass_types.h ass_utils.h ass_drawing.c \
-                    ass_drawing.h ass_cache_template.h ass_render.h \
-                    ass_parse.c ass_parse.h ass_render_api.c ass_shaper.c \
-                    ass_shaper.h ass_strtod.c
-libass_la_LDFLAGS = -version-info $(LIBASS_LT_CURRENT):$(LIBASS_LT_REVISION):$(LIBASS_LT_AGE)
-libass_la_LDFLAGS += -export-symbols $(srcdir)/libass.sym
-
-assheadersdir = $(includedir)/ass
-dist_assheaders_HEADERS = ass.h ass_types.h
-
-EXTRA_DIST = libass.sym
diff --git a/lib/libass/libass/ass.c b/lib/libass/libass/ass.c
deleted file mode 100644
index 66868f27f5..0000000000
--- a/lib/libass/libass/ass.c
+++ /dev/null
@@ -1,1320 +0,0 @@
-/*
- * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
- *
- * This file is part of libass.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include "config.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#ifndef _WIN32
-#include <strings.h>
-#endif
-#include <assert.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <inttypes.h>
-#include <ctype.h>
-
-#ifdef CONFIG_ICONV
-#include <iconv.h>
-#endif
-
-#include "ass.h"
-#include "ass_utils.h"
-#include "ass_library.h"
-
-#ifdef _WIN32
-#pragma comment(lib, "libiconv.lib")
-#pragma comment(lib, "freetype246MT.lib")
-#pragma comment(lib, "libfribidi.lib")
-#endif
-
-#define ass_atof(STR) (ass_strtod((STR),NULL))
-
-typedef enum {
-    PST_UNKNOWN = 0,
-    PST_INFO,
-    PST_STYLES,
-    PST_EVENTS,
-    PST_FONTS
-} ParserState;
-
-struct parser_priv {
-    ParserState state;
-    char *fontname;
-    char *fontdata;
-    int fontdata_size;
-    int fontdata_used;
-};
-
-#define ASS_STYLES_ALLOC 20
-#define ASS_EVENTS_ALLOC 200
-
-void ass_free_track(ASS_Track *track)
-{
-    int i;
-
-    if (track->parser_priv) {
-        free(track->parser_priv->fontname);
-        free(track->parser_priv->fontdata);
-        free(track->parser_priv);
-    }
-    free(track->style_format);
-    free(track->event_format);
-    free(track->Language);
-    if (track->styles) {
-        for (i = 0; i < track->n_styles; ++i)
-            ass_free_style(track, i);
-    }
-    free(track->styles);
-    if (track->events) {
-        for (i = 0; i < track->n_events; ++i)
-            ass_free_event(track, i);
-    }
-    free(track->events);
-    free(track->name);
-    free(track);
-}
-
-/// \brief Allocate a new style struct
-/// \param track track
-/// \return style id
-int ass_alloc_style(ASS_Track *track)
-{
-    int sid;
-
-    assert(track->n_styles <= track->max_styles);
-
-    if (track->n_styles == track->max_styles) {
-        track->max_styles += ASS_STYLES_ALLOC;
-        track->styles =
-            (ASS_Style *) realloc(track->styles,
-                                  sizeof(ASS_Style) *
-                                  track->max_styles);
-    }
-
-    sid = track->n_styles++;
-    memset(track->styles + sid, 0, sizeof(ASS_Style));
-    return sid;
-}
-
-/// \brief Allocate a new event struct
-/// \param track track
-/// \return event id
-int ass_alloc_event(ASS_Track *track)
-{
-    int eid;
-
-    assert(track->n_events <= track->max_events);
-
-    if (track->n_events == track->max_events) {
-        track->max_events += ASS_EVENTS_ALLOC;
-        track->events =
-            (ASS_Event *) realloc(track->events,
-                                  sizeof(ASS_Event) *
-                                  track->max_events);
-    }
-
-    eid = track->n_events++;
-    memset(track->events + eid, 0, sizeof(ASS_Event));
-    return eid;
-}
-
-void ass_free_event(ASS_Track *track, int eid)
-{
-    ASS_Event *event = track->events + eid;
-
-    free(event->Name);
-    free(event->Effect);
-    free(event->Text);
-    free(event->render_priv);
-}
-
-void ass_free_style(ASS_Track *track, int sid)
-{
-    ASS_Style *style = track->styles + sid;
-
-    free(style->Name);
-    free(style->FontName);
-}
-
-// ==============================================================================================
-
-static void skip_spaces(char **str)
-{
-    char *p = *str;
-    while ((*p == ' ') || (*p == '\t'))
-        ++p;
-    *str = p;
-}
-
-static void rskip_spaces(char **str, char *limit)
-{
-    char *p = *str;
-    while ((p >= limit) && ((*p == ' ') || (*p == '\t')))
-        --p;
-    *str = p;
-}
-
-/**
- * \brief Set up default style
- * \param style style to edit to defaults
- * The parameters are mostly taken directly from VSFilter source for
- * best compatibility.
- */
-static void set_default_style(ASS_Style *style)
-{
-    style->Name             = strdup("Default");
-    style->FontName         = strdup("Arial");
-    style->FontSize         = 18;
-    style->PrimaryColour    = 0xffffff00;
-    style->SecondaryColour  = 0x00ffff00;
-    style->OutlineColour    = 0x00000000;
-    style->BackColour       = 0x00000080;
-    style->Bold             = 200;
-    style->ScaleX           = 1.0;
-    style->ScaleY           = 1.0;
-    style->Spacing          = 0;
-    style->BorderStyle      = 1;
-    style->Outline          = 2;
-    style->Shadow           = 3;
-    style->Alignment        = 2;
-    style->MarginL = style->MarginR = style->MarginV = 20;
-}
-
-/**
- * \brief find style by name
- * \param track track
- * \param name style name
- * \return index in track->styles
- * Returnes 0 if no styles found => expects at least 1 style.
- * Parsing code always adds "Default" style in the end.
- */
-static int lookup_style(ASS_Track *track, char *name)
-{
-    int i;
-    if (*name == '*')
-        ++name;                 // FIXME: what does '*' really mean ?
-    for (i = track->n_styles - 1; i >= 0; --i) {
-        if (strcmp(track->styles[i].Name, name) == 0)
-            return i;
-    }
-    i = track->default_style;
-    ass_msg(track->library, MSGL_WARN,
-            "[%p]: Warning: no style named '%s' found, using '%s'",
-            track, name, track->styles[i].Name);
-    return i;                   // use the first style
-}
-
-static uint32_t string2color(ASS_Library *library, char *p)
-{
-    uint32_t tmp;
-    (void) strtocolor(library, &p, &tmp, 0);
-    return tmp;
-}
-
-static long long string2timecode(ASS_Library *library, char *p)
-{
-    unsigned h, m, s, ms;
-    long long tm;
-    int res = sscanf(p, "%1d:%2d:%2d.%2d", &h, &m, &s, &ms);
-    if (res < 4) {
-        ass_msg(library, MSGL_WARN, "Bad timestamp");
-        return 0;
-    }
-    tm = ((h * 60 + m) * 60 + s) * 1000 + ms * 10;
-    return tm;
-}
-
-/**
- * \brief converts numpad-style align to align.
- */
-static int numpad2align(int val)
-{
-    int res, v;
-    v = (val - 1) / 3;          // 0, 1 or 2 for vertical alignment
-    if (v != 0)
-        v = 3 - v;
-    res = ((val - 1) % 3) + 1;  // horizontal alignment
-    res += v * 4;
-    return res;
-}
-
-#define NEXT(str,token) \
-	token = next_token(&str); \
-	if (!token) break;
-
-#define ANYVAL(name,func) \
-	} else if (strcasecmp(tname, #name) == 0) { \
-		target->name = func(token); \
-		ass_msg(track->library, MSGL_DBG2, "%s = %s", #name, token);
-
-#define STRVAL(name) \
-	} else if (strcasecmp(tname, #name) == 0) { \
-		if (target->name != NULL) free(target->name); \
-		target->name = strdup(token); \
-		ass_msg(track->library, MSGL_DBG2, "%s = %s", #name, token);
-
-#define COLORVAL(name) \
-	} else if (strcasecmp(tname, #name) == 0) { \
-		target->name = string2color(track->library, token); \
-		ass_msg(track->library, MSGL_DBG2, "%s = %s", #name, token);
-
-#define INTVAL(name) ANYVAL(name,atoi)
-#define FPVAL(name) ANYVAL(name,ass_atof)
-#define TIMEVAL(name) \
-	} else if (strcasecmp(tname, #name) == 0) { \
-		target->name = string2timecode(track->library, token); \
-		ass_msg(track->library, MSGL_DBG2, "%s = %s", #name, token);
-
-#define STYLEVAL(name) \
-	} else if (strcasecmp(tname, #name) == 0) { \
-		target->name = lookup_style(track, token); \
-		ass_msg(track->library, MSGL_DBG2, "%s = %s", #name, token);
-
-#define ALIAS(alias,name) \
-	if (strcasecmp(tname, #alias) == 0) {tname = #name;}
-
-static char *next_token(char **str)
-{
-    char *p = *str;
-    char *start;
-    skip_spaces(&p);
-    if (*p == '\0') {
-        *str = p;
-        return 0;
-    }
-    start = p;                  // start of the token
-    for (; (*p != '\0') && (*p != ','); ++p) {
-    }
-    if (*p == '\0') {
-        *str = p;               // eos found, str will point to '\0' at exit
-    } else {
-        *p = '\0';
-        *str = p + 1;           // ',' found, str will point to the next char (beginning of the next token)
-    }
-    --p;                        // end of current token
-    rskip_spaces(&p, start);
-    if (p < start)
-        p = start;              // empty token
-    else
-        ++p;                    // the first space character, or '\0'
-    *p = '\0';
-    return start;
-}
-
-/**
- * \brief Parse the tail of Dialogue line
- * \param track track
- * \param event parsed data goes here
- * \param str string to parse, zero-terminated
- * \param n_ignored number of format options to skip at the beginning
-*/
-static int process_event_tail(ASS_Track *track, ASS_Event *event,
-                              char *str, int n_ignored)
-{
-    char *token;
-    char *tname;
-    char *p = str;
-    int i;
-    ASS_Event *target = event;
-
-    char *format = strdup(track->event_format);
-    char *q = format;           // format scanning pointer
-
-    if (track->n_styles == 0) {
-        // add "Default" style to the end
-        // will be used if track does not contain a default style (or even does not contain styles at all)
-        int sid = ass_alloc_style(track);
-        set_default_style(&track->styles[sid]);
-        track->default_style = sid;
-    }
-
-    for (i = 0; i < n_ignored; ++i) {
-        NEXT(q, tname);
-    }
-
-    while (1) {
-        NEXT(q, tname);
-        if (strcasecmp(tname, "Text") == 0) {
-            char *last;
-            event->Text = strdup(p);
-            if (*event->Text != 0) {
-                last = event->Text + strlen(event->Text) - 1;
-                if (last >= event->Text && *last == '\r')
-                    *last = 0;
-            }
-            ass_msg(track->library, MSGL_DBG2, "Text = %s", event->Text);
-            event->Duration -= event->Start;
-            free(format);
-            return 0;           // "Text" is always the last
-        }
-        NEXT(p, token);
-
-        ALIAS(End, Duration)    // temporarily store end timecode in event->Duration
-        if (0) {            // cool ;)
-            INTVAL(Layer)
-            STYLEVAL(Style)
-            STRVAL(Name)
-            STRVAL(Effect)
-            INTVAL(MarginL)
-            INTVAL(MarginR)
-            INTVAL(MarginV)
-            TIMEVAL(Start)
-            TIMEVAL(Duration)
-        }
-    }
-    free(format);
-    return 1;
-}
-
-/**
- * \brief Parse command line style overrides (--ass-force-style option)
- * \param track track to apply overrides to
- * The format for overrides is [StyleName.]Field=Value
- */
-void ass_process_force_style(ASS_Track *track)
-{
-    char **fs, *eq, *dt, *style, *tname, *token;
-    ASS_Style *target;
-    int sid;
-    char **list = track->library->style_overrides;
-
-    if (!list)
-        return;
-
-    for (fs = list; *fs; ++fs) {
-        eq = strrchr(*fs, '=');
-        if (!eq)
-            continue;
-        *eq = '\0';
-        token = eq + 1;
-
-        if (!strcasecmp(*fs, "PlayResX"))
-            track->PlayResX = atoi(token);
-        else if (!strcasecmp(*fs, "PlayResY"))
-            track->PlayResY = atoi(token);
-        else if (!strcasecmp(*fs, "Timer"))
-            track->Timer = ass_atof(token);
-        else if (!strcasecmp(*fs, "WrapStyle"))
-            track->WrapStyle = atoi(token);
-        else if (!strcasecmp(*fs, "ScaledBorderAndShadow"))
-            track->ScaledBorderAndShadow = parse_bool(token);
-        else if (!strcasecmp(*fs, "Kerning"))
-            track->Kerning = parse_bool(token);
-
-        dt = strrchr(*fs, '.');
-        if (dt) {
-            *dt = '\0';
-            style = *fs;
-            tname = dt + 1;
-        } else {
-            style = NULL;
-            tname = *fs;
-        }
-        for (sid = 0; sid < track->n_styles; ++sid) {
-            if (style == NULL
-                || strcasecmp(track->styles[sid].Name, style) == 0) {
-                target = track->styles + sid;
-                if (0) {
-                    STRVAL(FontName)
-                    COLORVAL(PrimaryColour)
-                    COLORVAL(SecondaryColour)
-                    COLORVAL(OutlineColour)
-                    COLORVAL(BackColour)
-                    FPVAL(FontSize)
-                    INTVAL(Bold)
-                    INTVAL(Italic)
-                    INTVAL(Underline)
-                    INTVAL(StrikeOut)
-                    FPVAL(Spacing)
-                    INTVAL(Angle)
-                    INTVAL(BorderStyle)
-                    INTVAL(Alignment)
-                    INTVAL(MarginL)
-                    INTVAL(MarginR)
-                    INTVAL(MarginV)
-                    INTVAL(Encoding)
-                    FPVAL(ScaleX)
-                    FPVAL(ScaleY)
-                    FPVAL(Outline)
-                    FPVAL(Shadow)
-                }
-            }
-        }
-        *eq = '=';
-        if (dt)
-            *dt = '.';
-    }
-}
-
-/**
- * \brief Parse the Style line
- * \param track track
- * \param str string to parse, zero-terminated
- * Allocates a new style struct.
-*/
-static int process_style(ASS_Track *track, char *str)
-{
-
-    char *token;
-    char *tname;
-    char *p = str;
-    char *format;
-    char *q;                    // format scanning pointer
-    int sid;
-    ASS_Style *style;
-    ASS_Style *target;
-
-    if (!track->style_format) {
-        // no style format header
-        // probably an ancient script version
-        if (track->track_type == TRACK_TYPE_SSA)
-            track->style_format =
-                strdup
-                ("Name, Fontname, Fontsize, PrimaryColour, SecondaryColour,"
-                 "TertiaryColour, BackColour, Bold, Italic, BorderStyle, Outline,"
-                 "Shadow, Alignment, MarginL, MarginR, MarginV, AlphaLevel, Encoding");
-        else
-            track->style_format =
-                strdup
-                ("Name, Fontname, Fontsize, PrimaryColour, SecondaryColour,"
-                 "OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut,"
-                 "ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow,"
-                 "Alignment, MarginL, MarginR, MarginV, Encoding");
-    }
-
-    q = format = strdup(track->style_format);
-
-    // Add default style first
-    if (track->n_styles == 0) {
-        // will be used if track does not contain a default style (or even does not contain styles at all)
-        int sid = ass_alloc_style(track);
-        set_default_style(&track->styles[sid]);
-        track->default_style = sid;
-    }
-
-    ass_msg(track->library, MSGL_V, "[%p] Style: %s", track, str);
-
-    sid = ass_alloc_style(track);
-
-    style = track->styles + sid;
-    target = style;
-
-    // fill style with some default values
-    style->ScaleX = 100.;
-    style->ScaleY = 100.;
-
-    while (1) {
-        NEXT(q, tname);
-        NEXT(p, token);
-
-        if (0) {                // cool ;)
-            STRVAL(Name)
-            if ((strcmp(target->Name, "Default") == 0)
-                || (strcmp(target->Name, "*Default") == 0))
-            track->default_style = sid;
-            STRVAL(FontName)
-            COLORVAL(PrimaryColour)
-            COLORVAL(SecondaryColour)
-            COLORVAL(OutlineColour) // TertiaryColor
-            COLORVAL(BackColour)
-            // SSA uses BackColour for both outline and shadow
-            // this will destroy SSA's TertiaryColour, but i'm not going to use it anyway
-            if (track->track_type == TRACK_TYPE_SSA)
-                target->OutlineColour = target->BackColour;
-            FPVAL(FontSize)
-            INTVAL(Bold)
-            INTVAL(Italic)
-            INTVAL(Underline)
-            INTVAL(StrikeOut)
-            FPVAL(Spacing)
-            INTVAL(Angle)
-            INTVAL(BorderStyle)
-            INTVAL(Alignment)
-            if (track->track_type == TRACK_TYPE_ASS)
-                target->Alignment = numpad2align(target->Alignment);
-            INTVAL(MarginL)
-            INTVAL(MarginR)
-            INTVAL(MarginV)
-            INTVAL(Encoding)
-            FPVAL(ScaleX)
-            FPVAL(ScaleY)
-            FPVAL(Outline)
-            FPVAL(Shadow)
-        }
-    }
-    style->ScaleX /= 100.;
-    style->ScaleY /= 100.;
-    style->Bold = !!style->Bold;
-    style->Italic = !!style->Italic;
-    style->Underline = !!style->Underline;
-    if (!style->Name)
-        style->Name = strdup("Default");
-    if (!style->FontName)
-        style->FontName = strdup("Arial");
-    free(format);
-    return 0;
-
-}
-
-static int process_styles_line(ASS_Track *track, char *str)
-{
-    if (!strncmp(str, "Format:", 7)) {
-        char *p = str + 7;
-        skip_spaces(&p);
-        track->style_format = strdup(p);
-        ass_msg(track->library, MSGL_DBG2, "Style format: %s",
-               track->style_format);
-    } else if (!strncmp(str, "Style:", 6)) {
-        char *p = str + 6;
-        skip_spaces(&p);
-        process_style(track, p);
-    }
-    return 0;
-}
-
-static int process_info_line(ASS_Track *track, char *str)
-{
-    if (!strncmp(str, "PlayResX:", 9)) {
-        track->PlayResX = atoi(str + 9);
-    } else if (!strncmp(str, "PlayResY:", 9)) {
-        track->PlayResY = atoi(str + 9);
-    } else if (!strncmp(str, "Timer:", 6)) {
-        track->Timer = ass_atof(str + 6);
-    } else if (!strncmp(str, "WrapStyle:", 10)) {
-        track->WrapStyle = atoi(str + 10);
-    } else if (!strncmp(str, "ScaledBorderAndShadow:", 22)) {
-        track->ScaledBorderAndShadow = parse_bool(str + 22);
-    } else if (!strncmp(str, "Kerning:", 8)) {
-        track->Kerning = parse_bool(str + 8);
-    } else if (!strncmp(str, "Language:", 9)) {
-        char *p = str + 9;
-        while (*p && isspace(*p)) p++;
-        track->Language = malloc(3);
-        strncpy(track->Language, p, 2);
-        track->Language[2] = 0;
-    }
-    return 0;
-}
-
-static void event_format_fallback(ASS_Track *track)
-{
-    track->parser_priv->state = PST_EVENTS;
-    if (track->track_type == TRACK_TYPE_SSA)
-        track->event_format = strdup("Format: Marked, Start, End, Style, "
-            "Name, MarginL, MarginR, MarginV, Effect, Text");
-    else
-        track->event_format = strdup("Format: Layer, Start, End, Style, "
-            "Actor, MarginL, MarginR, MarginV, Effect, Text");
-    ass_msg(track->library, MSGL_V,
-            "No event format found, using fallback");
-}
-
-static int process_events_line(ASS_Track *track, char *str)
-{
-    if (!strncmp(str, "Format:", 7)) {
-        char *p = str + 7;
-        skip_spaces(&p);
-        free(track->event_format);
-        track->event_format = strdup(p);
-        ass_msg(track->library, MSGL_DBG2, "Event format: %s", track->event_format);
-    } else if (!strncmp(str, "Dialogue:", 9)) {
-        // This should never be reached for embedded subtitles.
-        // They have slightly different format and are parsed in ass_process_chunk,
-        // called directly from demuxer
-        int eid;
-        ASS_Event *event;
-
-        str += 9;
-        skip_spaces(&str);
-
-        eid = ass_alloc_event(track);
-        event = track->events + eid;
-
-        // We can't parse events with event_format
-        if (!track->event_format)
-            event_format_fallback(track);
-
-        process_event_tail(track, event, str, 0);
-    } else {
-        ass_msg(track->library, MSGL_V, "Not understood: '%.30s'", str);
-    }
-    return 0;
-}
-
-// Copied from mkvtoolnix
-static unsigned char *decode_chars(unsigned char c1, unsigned char c2,
-                                   unsigned char c3, unsigned char c4,
-                                   unsigned char *dst, int cnt)
-{
-    uint32_t value;
-    unsigned char bytes[3];
-    int i;
-
-    value =
-        ((c1 - 33) << 18) + ((c2 - 33) << 12) + ((c3 - 33) << 6) + (c4 -
-                                                                    33);
-    bytes[2] = value & 0xff;
-    bytes[1] = (value & 0xff00) >> 8;
-    bytes[0] = (value & 0xff0000) >> 16;
-
-    for (i = 0; i < cnt; ++i)
-        *dst++ = bytes[i];
-    return dst;
-}
-
-static int decode_font(ASS_Track *track)
-{
-    unsigned char *p;
-    unsigned char *q;
-    int i;
-    int size;                   // original size
-    int dsize;                  // decoded size
-    unsigned char *buf = 0;
-
-    ass_msg(track->library, MSGL_V, "Font: %d bytes encoded data",
-            track->parser_priv->fontdata_used);
-    size = track->parser_priv->fontdata_used;
-    if (size % 4 == 1) {
-        ass_msg(track->library, MSGL_ERR, "Bad encoded data size");
-        goto error_decode_font;
-    }
-    buf = malloc(size / 4 * 3 + 2);
-    q = buf;
-    for (i = 0, p = (unsigned char *) track->parser_priv->fontdata;
-         i < size / 4; i++, p += 4) {
-        q = decode_chars(p[0], p[1], p[2], p[3], q, 3);
-    }
-    if (size % 4 == 2) {
-        q = decode_chars(p[0], p[1], 0, 0, q, 1);
-    } else if (size % 4 == 3) {
-        q = decode_chars(p[0], p[1], p[2], 0, q, 2);
-    }
-    dsize = q - buf;
-    assert(dsize <= size / 4 * 3 + 2);
-
-    if (track->library->extract_fonts) {
-        ass_add_font(track->library, track->parser_priv->fontname,
-                     (char *) buf, dsize);
-    }
-
-error_decode_font:
-    free(buf);
-    free(track->parser_priv->fontname);
-    free(track->parser_priv->fontdata);
-    track->parser_priv->fontname = 0;
-    track->parser_priv->fontdata = 0;
-    track->parser_priv->fontdata_size = 0;
-    track->parser_priv->fontdata_used = 0;
-    return 0;
-}
-
-static int process_fonts_line(ASS_Track *track, char *str)
-{
-    int len;
-
-    if (!strncmp(str, "fontname:", 9)) {
-        char *p = str + 9;
-        skip_spaces(&p);
-        if (track->parser_priv->fontname) {
-            decode_font(track);
-        }
-        track->parser_priv->fontname = strdup(p);
-        ass_msg(track->library, MSGL_V, "Fontname: %s",
-               track->parser_priv->fontname);
-        return 0;
-    }
-
-    if (!track->parser_priv->fontname) {
-        ass_msg(track->library, MSGL_V, "Not understood: '%s'", str);
-        return 0;
-    }
-
-    len = strlen(str);
-    if (len > 80) {
-        ass_msg(track->library, MSGL_WARN, "Font line too long: %d, %s",
-                len, str);
-        return 0;
-    }
-    if (track->parser_priv->fontdata_used + len >
-        track->parser_priv->fontdata_size) {
-        track->parser_priv->fontdata_size += 100 * 1024;
-        track->parser_priv->fontdata =
-            realloc(track->parser_priv->fontdata,
-                    track->parser_priv->fontdata_size);
-    }
-    memcpy(track->parser_priv->fontdata + track->parser_priv->fontdata_used,
-           str, len);
-    track->parser_priv->fontdata_used += len;
-
-    return 0;
-}
-
-/**
- * \brief Parse a header line
- * \param track track
- * \param str string to parse, zero-terminated
-*/
-static int process_line(ASS_Track *track, char *str)
-{
-    if (!strncasecmp(str, "[Script Info]", 13)) {
-        track->parser_priv->state = PST_INFO;
-    } else if (!strncasecmp(str, "[V4 Styles]", 11)) {
-        track->parser_priv->state = PST_STYLES;
-        track->track_type = TRACK_TYPE_SSA;
-    } else if (!strncasecmp(str, "[V4+ Styles]", 12)) {
-        track->parser_priv->state = PST_STYLES;
-        track->track_type = TRACK_TYPE_ASS;
-    } else if (!strncasecmp(str, "[Events]", 8)) {
-        track->parser_priv->state = PST_EVENTS;
-    } else if (!strncasecmp(str, "[Fonts]", 7)) {
-        track->parser_priv->state = PST_FONTS;
-    } else {
-        switch (track->parser_priv->state) {
-        case PST_INFO:
-            process_info_line(track, str);
-            break;
-        case PST_STYLES:
-            process_styles_line(track, str);
-            break;
-        case PST_EVENTS:
-            process_events_line(track, str);
-            break;
-        case PST_FONTS:
-            process_fonts_line(track, str);
-            break;
-        default:
-            break;
-        }
-    }
-
-    // there is no explicit end-of-font marker in ssa/ass
-    if ((track->parser_priv->state != PST_FONTS)
-        && (track->parser_priv->fontname))
-        decode_font(track);
-
-    return 0;
-}
-
-static int process_text(ASS_Track *track, char *str)
-{
-    char *p = str;
-    while (1) {
-        char *q;
-        while (1) {
-            if ((*p == '\r') || (*p == '\n'))
-                ++p;
-            else if (p[0] == '\xef' && p[1] == '\xbb' && p[2] == '\xbf')
-                p += 3;         // U+FFFE (BOM)
-            else
-                break;
-        }
-        for (q = p; ((*q != '\0') && (*q != '\r') && (*q != '\n')); ++q) {
-        };
-        if (q == p)
-            break;
-        if (*q != '\0')
-            *(q++) = '\0';
-        process_line(track, p);
-        if (*q == '\0')
-            break;
-        p = q;
-    }
-    return 0;
-}
-
-/**
- * \brief Process a chunk of subtitle stream data.
- * \param track track
- * \param data string to parse
- * \param size length of data
-*/
-void ass_process_data(ASS_Track *track, char *data, int size)
-{
-    char *str = malloc(size + 1);
-
-    memcpy(str, data, size);
-    str[size] = '\0';
-
-    ass_msg(track->library, MSGL_V, "Event: %s", str);
-    process_text(track, str);
-    free(str);
-}
-
-/**
- * \brief Process CodecPrivate section of subtitle stream
- * \param track track
- * \param data string to parse
- * \param size length of data
- CodecPrivate section contains [Stream Info] and [V4+ Styles] ([V4 Styles] for SSA) sections
-*/
-void ass_process_codec_private(ASS_Track *track, char *data, int size)
-{
-    ass_process_data(track, data, size);
-
-    // probably an mkv produced by ancient mkvtoolnix
-    // such files don't have [Events] and Format: headers
-    if (!track->event_format)
-        event_format_fallback(track);
-
-    ass_process_force_style(track);
-}
-
-static int check_duplicate_event(ASS_Track *track, int ReadOrder)
-{
-    int i;
-    for (i = 0; i < track->n_events - 1; ++i)   // ignoring last event, it is the one we are comparing with
-        if (track->events[i].ReadOrder == ReadOrder)
-            return 1;
-    return 0;
-}
-
-/**
- * \brief Process a chunk of subtitle stream data. In Matroska, this contains exactly 1 event (or a commentary).
- * \param track track
- * \param data string to parse
- * \param size length of data
- * \param timecode starting time of the event (milliseconds)
- * \param duration duration of the event (milliseconds)
-*/
-void ass_process_chunk(ASS_Track *track, char *data, int size,
-                       long long timecode, long long duration)
-{
-    char *str;
-    int eid;
-    char *p;
-    char *token;
-    ASS_Event *event;
-
-    if (!track->event_format) {
-        ass_msg(track->library, MSGL_WARN, "Event format header missing");
-        return;
-    }
-
-    str = malloc(size + 1);
-    memcpy(str, data, size);
-    str[size] = '\0';
-    ass_msg(track->library, MSGL_V, "Event at %" PRId64 ", +%" PRId64 ": %s",
-           (int64_t) timecode, (int64_t) duration, str);
-
-    eid = ass_alloc_event(track);
-    event = track->events + eid;
-
-    p = str;
-
-    do {
-        NEXT(p, token);
-        event->ReadOrder = atoi(token);
-        if (check_duplicate_event(track, event->ReadOrder))
-            break;
-
-        NEXT(p, token);
-        event->Layer = atoi(token);
-
-        process_event_tail(track, event, p, 3);
-
-        event->Start = timecode;
-        event->Duration = duration;
-
-        free(str);
-        return;
-//              dump_events(tid);
-    } while (0);
-    // some error
-    ass_free_event(track, eid);
-    track->n_events--;
-    free(str);
-}
-
-/**
- * \brief Flush buffered events.
- * \param track track
-*/
-void ass_flush_events(ASS_Track *track)
-{
-    if (track->events) {
-        int eid;
-        for (eid = 0; eid < track->n_events; eid++)
-            ass_free_event(track, eid);
-        track->n_events = 0;
-    }
-}
-
-#ifdef CONFIG_ICONV
-/** \brief recode buffer to utf-8
- * constraint: codepage != 0
- * \param data pointer to text buffer
- * \param size buffer size
- * \return a pointer to recoded buffer, caller is responsible for freeing it
-**/
-static char *sub_recode(ASS_Library *library, char *data, size_t size,
-                        char *codepage)
-{
-    iconv_t icdsc;
-    char *tocp = "UTF-8";
-    char *outbuf;
-    assert(codepage);
-
-    {
-        const char *cp_tmp = codepage;
-#ifdef CONFIG_ENCA
-        char enca_lang[3], enca_fallback[100];
-        if (sscanf(codepage, "enca:%2s:%99s", enca_lang, enca_fallback) == 2
-            || sscanf(codepage, "ENCA:%2s:%99s", enca_lang,
-                      enca_fallback) == 2) {
-            cp_tmp =
-                ass_guess_buffer_cp(library, (unsigned char *) data, size,
-                                    enca_lang, enca_fallback);
-        }
-#endif
-        if ((icdsc = iconv_open(tocp, cp_tmp)) != (iconv_t) (-1)) {
-            ass_msg(library, MSGL_V, "Opened iconv descriptor");
-        } else
-            ass_msg(library, MSGL_ERR, "Error opening iconv descriptor");
-    }
-
-    {
-        size_t osize = size;
-        size_t ileft = size;
-        size_t oleft = size - 1;
-        char *ip;
-        char *op;
-        size_t rc;
-        int clear = 0;
-
-        outbuf = malloc(osize);
-        ip = data;
-        op = outbuf;
-
-        while (1) {
-            if (ileft)
-                rc = iconv(icdsc, &ip, &ileft, &op, &oleft);
-            else {              // clear the conversion state and leave
-                clear = 1;
-                rc = iconv(icdsc, NULL, NULL, &op, &oleft);
-            }
-            if (rc == (size_t) (-1)) {
-                if (errno == E2BIG) {
-                    size_t offset = op - outbuf;
-                    outbuf = (char *) realloc(outbuf, osize + size);
-                    op = outbuf + offset;
-                    osize += size;
-                    oleft += size;
-                } else {
-                    ass_msg(library, MSGL_WARN, "Error recoding file");
-                    return NULL;
-                }
-            } else if (clear)
-                break;
-        }
-        outbuf[osize - oleft - 1] = 0;
-    }
-
-    if (icdsc != (iconv_t) (-1)) {
-        (void) iconv_close(icdsc);
-        icdsc = (iconv_t) (-1);
-        ass_msg(library, MSGL_V, "Closed iconv descriptor");
-    }
-
-    return outbuf;
-}
-#endif                          // ICONV
-
-/**
- * \brief read file contents into newly allocated buffer
- * \param fname file name
- * \param bufsize out: file size
- * \return pointer to file contents. Caller is responsible for its deallocation.
- */
-static char *read_file(ASS_Library *library, char *fname, size_t *bufsize)
-{
-    int res;
-    long sz;
-    long bytes_read;
-    char *buf;
-
-    FILE *fp = fopen(fname, "rb");
-    if (!fp) {
-        ass_msg(library, MSGL_WARN,
-                "ass_read_file(%s): fopen failed", fname);
-        return 0;
-    }
-    res = fseek(fp, 0, SEEK_END);
-    if (res == -1) {
-        ass_msg(library, MSGL_WARN,
-                "ass_read_file(%s): fseek failed", fname);
-        fclose(fp);
-        return 0;
-    }
-
-    sz = ftell(fp);
-    rewind(fp);
-
-    ass_msg(library, MSGL_V, "File size: %ld", sz);
-
-    buf = malloc(sz + 1);
-    assert(buf);
-    bytes_read = 0;
-    do {
-        res = fread(buf + bytes_read, 1, sz - bytes_read, fp);
-        if (res <= 0) {
-            ass_msg(library, MSGL_INFO, "Read failed, %d: %s", errno,
-                    strerror(errno));
-            fclose(fp);
-            free(buf);
-            return 0;
-        }
-        bytes_read += res;
-    } while (sz - bytes_read > 0);
-    buf[sz] = '\0';
-    fclose(fp);
-
-    if (bufsize)
-        *bufsize = sz;
-    return buf;
-}
-
-/*
- * \param buf pointer to subtitle text in utf-8
- */
-static ASS_Track *parse_memory(ASS_Library *library, char *buf)
-{
-    ASS_Track *track;
-    int i;
-
-    track = ass_new_track(library);
-
-    // process header
-    process_text(track, buf);
-
-    // external SSA/ASS subs does not have ReadOrder field
-    for (i = 0; i < track->n_events; ++i)
-        track->events[i].ReadOrder = i;
-
-    // there is no explicit end-of-font marker in ssa/ass
-    if (track->parser_priv->fontname)
-        decode_font(track);
-
-    if (track->track_type == TRACK_TYPE_UNKNOWN) {
-        ass_free_track(track);
-        return 0;
-    }
-
-    ass_process_force_style(track);
-
-    return track;
-}
-
-/**
- * \brief Read subtitles from memory.
- * \param library libass library object
- * \param buf pointer to subtitles text
- * \param bufsize size of buffer
- * \param codepage recode buffer contents from given codepage
- * \return newly allocated track
-*/
-ASS_Track *ass_read_memory(ASS_Library *library, char *buf,
-                           size_t bufsize, char *codepage)
-{
-    ASS_Track *track;
-    int need_free = 0;
-
-    if (!buf)
-        return 0;
-
-#ifdef CONFIG_ICONV
-    if (codepage) {
-        buf = sub_recode(library, buf, bufsize, codepage);
-        if (!buf)
-            return 0;
-        else
-            need_free = 1;
-    }
-#endif
-    track = parse_memory(library, buf);
-    if (need_free)
-        free(buf);
-    if (!track)
-        return 0;
-
-    ass_msg(library, MSGL_INFO, "Added subtitle file: "
-            "<memory> (%d styles, %d events)",
-            track->n_styles, track->n_events);
-    return track;
-}
-
-static char *read_file_recode(ASS_Library *library, char *fname,
-                              char *codepage, size_t *size)
-{
-    char *buf;
-    size_t bufsize;
-
-    buf = read_file(library, fname, &bufsize);
-    if (!buf)
-        return 0;
-#ifdef CONFIG_ICONV
-    if (codepage) {
-        char *tmpbuf = sub_recode(library, buf, bufsize, codepage);
-        free(buf);
-        buf = tmpbuf;
-    }
-    if (!buf)
-        return 0;
-#endif
-    *size = bufsize;
-    return buf;
-}
-
-/**
- * \brief Read subtitles from file.
- * \param library libass library object
- * \param fname file name
- * \param codepage recode buffer contents from given codepage
- * \return newly allocated track
-*/
-ASS_Track *ass_read_file(ASS_Library *library, char *fname,
-                         char *codepage)
-{
-    char *buf;
-    ASS_Track *track;
-    size_t bufsize;
-
-    buf = read_file_recode(library, fname, codepage, &bufsize);
-    if (!buf)
-        return 0;
-    track = parse_memory(library, buf);
-    free(buf);
-    if (!track)
-        return 0;
-
-    track->name = strdup(fname);
-
-    ass_msg(library, MSGL_INFO,
-            "Added subtitle file: '%s' (%d styles, %d events)",
-            fname, track->n_styles, track->n_events);
-
-    return track;
-}
-
-/**
- * \brief read styles from file into already initialized track
- */
-int ass_read_styles(ASS_Track *track, char *fname, char *codepage)
-{
-    char *buf;
-    ParserState old_state;
-    size_t sz;
-
-    buf = read_file(track->library, fname, &sz);
-    if (!buf)
-        return 1;
-#ifdef CONFIG_ICONV
-    if (codepage) {
-        char *tmpbuf;
-        tmpbuf = sub_recode(track->library, buf, sz, codepage);
-        free(buf);
-        buf = tmpbuf;
-    }
-    if (!buf)
-        return 0;
-#endif
-
-    old_state = track->parser_priv->state;
-    track->parser_priv->state = PST_STYLES;
-    process_text(track, buf);
-    track->parser_priv->state = old_state;
-
-    return 0;
-}
-
-long long ass_step_sub(ASS_Track *track, long long now, int movement)
-{
-    int i;
-
-    if (movement == 0)
-        return 0;
-    if (track->n_events == 0)
-        return 0;
-
-    if (movement < 0)
-        for (i = 0;
-             (i < track->n_events)
-             &&
-             ((long long) (track->events[i].Start +
-                           track->events[i].Duration) <= now); ++i) {
-    } else
-        for (i = track->n_events - 1;
-             (i >= 0) && ((long long) (track->events[i].Start) > now);
-             --i) {
-        }
-
-    // -1 and n_events are ok
-    assert(i >= -1);
-    assert(i <= track->n_events);
-    i += movement;
-    if (i < 0)
-        i = 0;
-    if (i >= track->n_events)
-        i = track->n_events - 1;
-    return ((long long) track->events[i].Start) - now;
-}
-
-ASS_Track *ass_new_track(ASS_Library *library)
-{
-    ASS_Track *track = calloc(1, sizeof(ASS_Track));
-    track->library = library;
-    track->ScaledBorderAndShadow = 1;
-    track->parser_priv = calloc(1, sizeof(ASS_ParserPriv));
-    return track;
-}
-
-/**
- * \brief Prepare track for rendering
- */
-void ass_lazy_track_init(ASS_Library *lib, ASS_Track *track)
-{
-    if (track->PlayResX && track->PlayResY)
-        return;
-    if (!track->PlayResX && !track->PlayResY) {
-        ass_msg(lib, MSGL_WARN,
-               "Neither PlayResX nor PlayResY defined. Assuming 384x288");
-        track->PlayResX = 384;
-        track->PlayResY = 288;
-    } else {
-        if (!track->PlayResY && track->PlayResX == 1280) {
-            track->PlayResY = 1024;
-            ass_msg(lib, MSGL_WARN,
-                   "PlayResY undefined, setting to %d", track->PlayResY);
-        } else if (!track->PlayResY) {
-            track->PlayResY = track->PlayResX * 3 / 4;
-            ass_msg(lib, MSGL_WARN,
-                   "PlayResY undefined, setting to %d", track->PlayResY);
-        } else if (!track->PlayResX && track->PlayResY == 1024) {
-            track->PlayResX = 1280;
-            ass_msg(lib, MSGL_WARN,
-                   "PlayResX undefined, setting to %d", track->PlayResX);
-        } else if (!track->PlayResX) {
-            track->PlayResX = track->PlayResY * 4 / 3;
-            ass_msg(lib, MSGL_WARN,
-                   "PlayResX undefined, setting to %d", track->PlayResX);
-        }
-    }
-}
diff --git a/lib/libass/libass/ass.h b/lib/libass/libass/ass.h
deleted file mode 100644
index 5aef92e3e5..0000000000
--- a/lib/libass/libass/ass.h
+++ /dev/null
@@ -1,403 +0,0 @@
-/*
- * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
- *
- * This file is part of libass.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#ifndef LIBASS_ASS_H
-#define LIBASS_ASS_H
-
-#include <stdio.h>
-#include <stdarg.h>
-#include "ass_types.h"
-
-#define LIBASS_VERSION 0x01000000
-
-/*
- * A linked list of images produced by an ass renderer.
- *
- * These images have to be rendered in-order for the correct screen
- * composition.  The libass renderer clips these bitmaps to the frame size.
- * w/h can be zero, in this case the bitmap should not be rendered at all.
- * The last bitmap row is not guaranteed to be padded up to stride size,
- * e.g. in the worst case a bitmap has the size stride * (h - 1) + w.
- */
-typedef struct ass_image {
-    int w, h;                   // Bitmap width/height
-    int stride;                 // Bitmap stride
-    unsigned char *bitmap;      // 1bpp stride*h alpha buffer
-                                // Note: the last row may not be padded to
-                                // bitmap stride!
-    uint32_t color;             // Bitmap color and alpha, RGBA
-    int dst_x, dst_y;           // Bitmap placement inside the video frame
-
-    struct ass_image *next;   // Next image, or NULL
-} ASS_Image;
-
-/*
- * Hinting type. (see ass_set_hinting below)
- *
- * FreeType's native hinter is still buggy sometimes and it is recommended
- * to use the light autohinter, ASS_HINTING_LIGHT, instead.  For best
- * compatibility with problematic fonts, disable hinting.
- */
-typedef enum {
-    ASS_HINTING_NONE = 0,
-    ASS_HINTING_LIGHT,
-    ASS_HINTING_NORMAL,
-    ASS_HINTING_NATIVE
-} ASS_Hinting;
-
-/**
- * \brief Text shaping levels.
- *
- * SIMPLE is a fast, font-agnostic shaper that can do only substitutions.
- * COMPLEX is a slower shaper using OpenType for substitutions and positioning.
- *
- * libass uses the best shaper available by default.
- */
-typedef enum {
-    ASS_SHAPING_SIMPLE = 0,
-    ASS_SHAPING_COMPLEX
-} ASS_ShapingLevel;
-
-/**
- * \brief Initialize the library.
- * \return library handle or NULL if failed
- */
-ASS_Library *ass_library_init(void);
-
-/**
- * \brief Finalize the library
- * \param priv library handle
- */
-void ass_library_done(ASS_Library *priv);
-
-/**
- * \brief Set additional fonts directory.
- * Optional directory that will be scanned for fonts recursively.  The fonts
- * found are used for font lookup.
- * NOTE: A valid font directory is not needed to support embedded fonts.
- *
- * \param priv library handle
- * \param fonts_dir directory with additional fonts
- */
-void ass_set_fonts_dir(ASS_Library *priv, const char *fonts_dir);
-
-/**
- * \brief Whether fonts should be extracted from track data.
- * \param priv library handle
- * \param extract whether to extract fonts
- */
-void ass_set_extract_fonts(ASS_Library *priv, int extract);
-
-/**
- * \brief Register style overrides with a library instance.
- * The overrides should have the form [Style.]Param=Value, e.g.
- *   SomeStyle.Font=Arial
- *   ScaledBorderAndShadow=yes
- *
- * \param priv library handle
- * \param list NULL-terminated list of strings
- */
-void ass_set_style_overrides(ASS_Library *priv, char **list);
-
-/**
- * \brief Explicitly process style overrides for a track.
- * \param track track handle
- */
-void ass_process_force_style(ASS_Track *track);
-
-/**
- * \brief Register a callback for debug/info messages.
- * If a callback is registered, it is called for every message emitted by
- * libass.  The callback receives a format string and a list of arguments,
- * to be used for the printf family of functions. Additionally, a log level
- * from 0 (FATAL errors) to 7 (verbose DEBUG) is passed.  Usually, level 5
- * should be used by applications.
- * If no callback is set, all messages level < 5 are printed to stderr,
- * prefixed with [ass].
- *
- * \param priv library handle
- * \param msg_cb pointer to callback function
- * \param data additional data, will be passed to callback
- */
-void ass_set_message_cb(ASS_Library *priv, void (*msg_cb)
-                        (int level, const char *fmt, va_list args, void *data),
-                        void *data);
-
-/**
- * \brief Initialize the renderer.
- * \param priv library handle
- * \return renderer handle or NULL if failed
- */
-ASS_Renderer *ass_renderer_init(ASS_Library *);
-
-/**
- * \brief Finalize the renderer.
- * \param priv renderer handle
- */
-void ass_renderer_done(ASS_Renderer *priv);
-
-/**
- * \brief Set the frame size in pixels, including margins.
- * \param priv renderer handle
- * \param w width
- * \param h height
- */
-void ass_set_frame_size(ASS_Renderer *priv, int w, int h);
-
-/**
- * \brief Set shaping level. This is merely a hint, the renderer will use
- * whatever is available if the request cannot be fulfilled.
- * \param level shaping level
- */
-void ass_set_shaper(ASS_Renderer *priv, ASS_ShapingLevel level);
-
-/**
- * \brief Set frame margins.  These values may be negative if pan-and-scan
- * is used.
- * \param priv renderer handle
- * \param t top margin
- * \param b bottom margin
- * \param l left margin
- * \param r right margin
- */
-void ass_set_margins(ASS_Renderer *priv, int t, int b, int l, int r);
-
-/**
- * \brief Whether margins should be used for placing regular events.
- * \param priv renderer handle
- * \param use whether to use the margins
- */
-void ass_set_use_margins(ASS_Renderer *priv, int use);
-
-/**
- * \brief Set aspect ratio parameters.
- * \param priv renderer handle
- * \param dar display aspect ratio (DAR), prescaled for output PAR
- * \param sar storage aspect ratio (SAR)
- */
-void ass_set_aspect_ratio(ASS_Renderer *priv, double dar, double sar);
-
-/**
- * \brief Set a fixed font scaling factor.
- * \param priv renderer handle
- * \param font_scale scaling factor, default is 1.0
- */
-void ass_set_font_scale(ASS_Renderer *priv, double font_scale);
-
-/**
- * \brief Set font hinting method.
- * \param priv renderer handle
- * \param ht hinting method
- */
-void ass_set_hinting(ASS_Renderer *priv, ASS_Hinting ht);
-
-/**
- * \brief Set line spacing. Will not be scaled with frame size.
- * \param priv renderer handle
- * \param line_spacing line spacing in pixels
- */
-void ass_set_line_spacing(ASS_Renderer *priv, double line_spacing);
-
-/**
- * \brief Set font lookup defaults.
- * \param default_font path to default font to use. Must be supplied if
- * fontconfig is disabled or unavailable.
- * \param default_family fallback font family for fontconfig, or NULL
- * \param fc whether to use fontconfig
- * \param config path to fontconfig configuration file, or NULL.  Only relevant
- * if fontconfig is used.
- * \param update whether fontconfig cache should be built/updated now.  Only
- * relevant if fontconfig is used.
- *
- * NOTE: font lookup must be configured before an ASS_Renderer can be used.
- */
-void ass_set_fonts(ASS_Renderer *priv, const char *default_font,
-                   const char *default_family, int fc, const char *config,
-                   int update);
-
-/**
- * \brief Update/build font cache.  This needs to be called if it was
- * disabled when ass_set_fonts was set.
- *
- * \param priv renderer handle
- * \return success
- */
-int ass_fonts_update(ASS_Renderer *priv);
-
-/**
- * \brief Set hard cache limits.  Do not set, or set to zero, for reasonable
- * defaults.
- *
- * \param priv renderer handle
- * \param glyph_max maximum number of cached glyphs
- * \param bitmap_max_size maximum bitmap cache size (in MB)
- */
-void ass_set_cache_limits(ASS_Renderer *priv, int glyph_max,
-                          int bitmap_max_size);
-
-/**
- * \brief Render a frame, producing a list of ASS_Image.
- * \param priv renderer handle
- * \param track subtitle track
- * \param now video timestamp in milliseconds
- * \param detect_change will be set to 1 if a change occured compared
- * to the last invocation
- */
-ASS_Image *ass_render_frame(ASS_Renderer *priv, ASS_Track *track,
-                            long long now, int *detect_change);
-
-
-/*
- * The following functions operate on track objects and do not need
- * an ass_renderer
- */
-
-/**
- * \brief Allocate a new empty track object.
- * \param library handle
- * \return pointer to empty track
- */
-ASS_Track *ass_new_track(ASS_Library *);
-
-/**
- * \brief Deallocate track and all its child objects (styles and events).
- * \param track track to deallocate
- */
-void ass_free_track(ASS_Track *track);
-
-/**
- * \brief Allocate new style.
- * \param track track
- * \return newly allocated style id
- */
-int ass_alloc_style(ASS_Track *track);
-
-/**
- * \brief Allocate new event.
- * \param track track
- * \return newly allocated event id
- */
-int ass_alloc_event(ASS_Track *track);
-
-/**
- * \brief Delete a style.
- * \param track track
- * \param sid style id
- * Deallocates style data. Does not modify track->n_styles.
- */
-void ass_free_style(ASS_Track *track, int sid);
-
-/**
- * \brief Delete an event.
- * \param track track
- * \param eid event id
- * Deallocates event data. Does not modify track->n_events.
- */
-void ass_free_event(ASS_Track *track, int eid);
-
-/**
- * \brief Parse a chunk of subtitle stream data.
- * \param track track
- * \param data string to parse
- * \param size length of data
- */
-void ass_process_data(ASS_Track *track, char *data, int size);
-
-/**
- * \brief Parse Codec Private section of the subtitle stream, in Matroska
- * format.  See the Matroska specification for details.
- * \param track target track
- * \param data string to parse
- * \param size length of data
- */
-void ass_process_codec_private(ASS_Track *track, char *data, int size);
-
-/**
- * \brief Parse a chunk of subtitle stream data. A chunk contains exactly one
- * event in Matroska format.  See the Matroska specification for details.
- * \param track track
- * \param data string to parse
- * \param size length of data
- * \param timecode starting time of the event (milliseconds)
- * \param duration duration of the event (milliseconds)
- */
-void ass_process_chunk(ASS_Track *track, char *data, int size,
-                       long long timecode, long long duration);
-
-/**
- * \brief Flush buffered events.
- * \param track track
-*/
-void ass_flush_events(ASS_Track *track);
-
-/**
- * \brief Read subtitles from file.
- * \param library library handle
- * \param fname file name
- * \param codepage encoding (iconv format)
- * \return newly allocated track
-*/
-ASS_Track *ass_read_file(ASS_Library *library, char *fname,
-                         char *codepage);
-
-/**
- * \brief Read subtitles from memory.
- * \param library library handle
- * \param buf pointer to subtitles text
- * \param bufsize size of buffer
- * \param codepage encoding (iconv format)
- * \return newly allocated track
-*/
-ASS_Track *ass_read_memory(ASS_Library *library, char *buf,
-                           size_t bufsize, char *codepage);
-/**
- * \brief Read styles from file into already initialized track.
- * \param fname file name
- * \param codepage encoding (iconv format)
- * \return 0 on success
- */
-int ass_read_styles(ASS_Track *track, char *fname, char *codepage);
-
-/**
- * \brief Add a memory font.
- * \param library library handle
- * \param name attachment name
- * \param data binary font data
- * \param data_size data size
-*/
-void ass_add_font(ASS_Library *library, char *name, char *data,
-                  int data_size);
-
-/**
- * \brief Remove all fonts stored in an ass_library object.
- * \param library library handle
- */
-void ass_clear_fonts(ASS_Library *library);
-
-/**
- * \brief Calculates timeshift from now to the start of some other subtitle
- * event, depending on movement parameter.
- * \param track subtitle track
- * \param now current time in milliseconds
- * \param movement how many events to skip from the one currently displayed
- * +2 means "the one after the next", -1 means "previous"
- * \return timeshift in milliseconds
- */
-long long ass_step_sub(ASS_Track *track, long long now, int movement);
-
-#endif /* LIBASS_ASS_H */
diff --git a/lib/libass/libass/ass_bitmap.c b/lib/libass/libass/ass_bitmap.c
deleted file mode 100644
index 6afe05d2f0..0000000000
--- a/lib/libass/libass/ass_bitmap.c
+++ /dev/null
@@ -1,526 +0,0 @@
-/*
- * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
- * Copyright (C) 2011 Grigori Goronzy <greg@chown.ath.cx>
- *
- * This file is part of libass.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-#include <assert.h>
-#include <ft2build.h>
-#include FT_GLYPH_H
-#include FT_OUTLINE_H
-
-#include "ass_utils.h"
-#include "ass_bitmap.h"
-
-struct ass_synth_priv {
-    int tmp_w, tmp_h;
-    unsigned short *tmp;
-
-    int g_r;
-    int g_w;
-
-    unsigned *g;
-    unsigned *gt2;
-
-    double radius;
-};
-
-static const unsigned int maxcolor = 255;
-static const unsigned base = 256;
-
-static int generate_tables(ASS_SynthPriv *priv, double radius)
-{
-    double A = log(1.0 / base) / (radius * radius * 2);
-    int mx, i;
-    double volume_diff, volume_factor = 0;
-    unsigned volume;
-
-    if (priv->radius == radius)
-        return 0;
-    else
-        priv->radius = radius;
-
-    priv->g_r = ceil(radius);
-    priv->g_w = 2 * priv->g_r + 1;
-
-    if (priv->g_r) {
-        priv->g = realloc(priv->g, priv->g_w * sizeof(unsigned));
-        priv->gt2 = realloc(priv->gt2, 256 * priv->g_w * sizeof(unsigned));
-        if (priv->g == NULL || priv->gt2 == NULL) {
-            return -1;
-        }
-    }
-
-    if (priv->g_r) {
-        // gaussian curve with volume = 256
-        for (volume_diff = 10000000; volume_diff > 0.0000001;
-             volume_diff *= 0.5) {
-            volume_factor += volume_diff;
-            volume = 0;
-            for (i = 0; i < priv->g_w; ++i) {
-                priv->g[i] =
-                    (unsigned) (exp(A * (i - priv->g_r) * (i - priv->g_r)) *
-                                volume_factor + .5);
-                volume += priv->g[i];
-            }
-            if (volume > 256)
-                volume_factor -= volume_diff;
-        }
-        volume = 0;
-        for (i = 0; i < priv->g_w; ++i) {
-            priv->g[i] =
-                (unsigned) (exp(A * (i - priv->g_r) * (i - priv->g_r)) *
-                            volume_factor + .5);
-            volume += priv->g[i];
-        }
-
-        // gauss table:
-        for (mx = 0; mx < priv->g_w; mx++) {
-            for (i = 0; i < 256; i++) {
-                priv->gt2[mx + i * priv->g_w] = i * priv->g[mx];
-            }
-        }
-    }
-
-    return 0;
-}
-
-static void resize_tmp(ASS_SynthPriv *priv, int w, int h)
-{
-    if (priv->tmp_w >= w && priv->tmp_h >= h)
-        return;
-    if (priv->tmp_w == 0)
-        priv->tmp_w = 64;
-    if (priv->tmp_h == 0)
-        priv->tmp_h = 64;
-    while (priv->tmp_w < w)
-        priv->tmp_w *= 2;
-    while (priv->tmp_h < h)
-        priv->tmp_h *= 2;
-    free(priv->tmp);
-    priv->tmp = malloc((priv->tmp_w + 1) * priv->tmp_h * sizeof(short));
-}
-
-ASS_SynthPriv *ass_synth_init(double radius)
-{
-    ASS_SynthPriv *priv = calloc(1, sizeof(ASS_SynthPriv));
-    generate_tables(priv, radius);
-    return priv;
-}
-
-void ass_synth_done(ASS_SynthPriv *priv)
-{
-    free(priv->tmp);
-    free(priv->g);
-    free(priv->gt2);
-    free(priv);
-}
-
-static Bitmap *alloc_bitmap(int w, int h)
-{
-    Bitmap *bm;
-    unsigned s = w; // XXX: alignment
-    bm = malloc(sizeof(Bitmap));
-    bm->buffer = calloc(s, h);
-    bm->w = w;
-    bm->h = h;
-    bm->stride = s;
-    bm->left = bm->top = 0;
-    return bm;
-}
-
-void ass_free_bitmap(Bitmap *bm)
-{
-    if (bm)
-        free(bm->buffer);
-    free(bm);
-}
-
-static Bitmap *copy_bitmap(const Bitmap *src)
-{
-    Bitmap *dst = alloc_bitmap(src->w, src->h);
-    dst->left = src->left;
-    dst->top = src->top;
-    memcpy(dst->buffer, src->buffer, src->stride * src->h);
-    return dst;
-}
-
-Bitmap *outline_to_bitmap(ASS_Library *library, FT_Library ftlib,
-                          FT_Outline *outline, int bord)
-{
-    Bitmap *bm;
-    int w, h;
-    int error;
-    FT_BBox bbox;
-    FT_Bitmap bitmap;
-
-    FT_Outline_Get_CBox(outline, &bbox);
-    // move glyph to origin (0, 0)
-    bbox.xMin &= ~63;
-    bbox.yMin &= ~63;
-    FT_Outline_Translate(outline, -bbox.xMin, -bbox.yMin);
-    // bitmap size
-    bbox.xMax = (bbox.xMax + 63) & ~63;
-    bbox.yMax = (bbox.yMax + 63) & ~63;
-    w = (bbox.xMax - bbox.xMin) >> 6;
-    h = (bbox.yMax - bbox.yMin) >> 6;
-    // pen offset
-    bbox.xMin >>= 6;
-    bbox.yMax >>= 6;
-
-    if (w * h > 8000000) {
-        ass_msg(library, MSGL_WARN, "Glyph bounding box too large: %dx%dpx",
-                w, h);
-        return NULL;
-    }
-
-    // allocate and set up bitmap
-    bm = alloc_bitmap(w + 2 * bord, h + 2 * bord);
-    bm->left = bbox.xMin - bord;
-    bm->top = -bbox.yMax - bord;
-    bitmap.width = w;
-    bitmap.rows = h;
-    bitmap.pitch = bm->stride;
-    bitmap.buffer = bm->buffer + bord + bm->stride * bord;
-    bitmap.num_grays = 256;
-    bitmap.pixel_mode = FT_PIXEL_MODE_GRAY;
-
-    // render into target bitmap
-    if ((error = FT_Outline_Get_Bitmap(ftlib, outline, &bitmap))) {
-        ass_msg(library, MSGL_WARN, "Failed to rasterize glyph: %d\n", error);
-        ass_free_bitmap(bm);
-        return NULL;
-    }
-
-    return bm;
-}
-
-/**
- * \brief fix outline bitmap
- *
- * The glyph bitmap is subtracted from outline bitmap. This way looks much
- * better in some cases.
- */
-static void fix_outline(Bitmap *bm_g, Bitmap *bm_o)
-{
-    int x, y;
-    const int l = bm_o->left > bm_g->left ? bm_o->left : bm_g->left;
-    const int t = bm_o->top > bm_g->top ? bm_o->top : bm_g->top;
-    const int r =
-        bm_o->left + bm_o->stride <
-        bm_g->left + bm_g->stride ? bm_o->left + bm_o->stride : bm_g->left + bm_g->stride;
-    const int b =
-        bm_o->top + bm_o->h <
-        bm_g->top + bm_g->h ? bm_o->top + bm_o->h : bm_g->top + bm_g->h;
-
-    unsigned char *g =
-        bm_g->buffer + (t - bm_g->top) * bm_g->stride + (l - bm_g->left);
-    unsigned char *o =
-        bm_o->buffer + (t - bm_o->top) * bm_o->stride + (l - bm_o->left);
-
-    for (y = 0; y < b - t; ++y) {
-        for (x = 0; x < r - l; ++x) {
-            unsigned char c_g, c_o;
-            c_g = g[x];
-            c_o = o[x];
-            o[x] = (c_o > c_g) ? c_o - (c_g / 2) : 0;
-        }
-        g += bm_g->stride;
-        o += bm_o->stride;
-    }
-}
-
-/**
- * \brief Shift a bitmap by the fraction of a pixel in x and y direction
- * expressed in 26.6 fixed point
- */
-static void shift_bitmap(Bitmap *bm, int shift_x, int shift_y)
-{
-    int x, y, b;
-    int w = bm->w;
-    int h = bm->h;
-    int s = bm->stride;
-    unsigned char *buf = bm->buffer;
-
-    // Shift in x direction
-    if (shift_x > 0) {
-        for (y = 0; y < h; y++) {
-            for (x = w - 1; x > 0; x--) {
-                b = (buf[x + y * s - 1] * shift_x) >> 6;
-                buf[x + y * s - 1] -= b;
-                buf[x + y * s] += b;
-            }
-        }
-    } else if (shift_x < 0) {
-        shift_x = -shift_x;
-        for (y = 0; y < h; y++) {
-            for (x = 0; x < w - 1; x++) {
-                b = (buf[x + y * s + 1] * shift_x) >> 6;
-                buf[x + y * s + 1] -= b;
-                buf[x + y * s] += b;
-            }
-        }
-    }
-
-    // Shift in y direction
-    if (shift_y > 0) {
-        for (x = 0; x < w; x++) {
-            for (y = h - 1; y > 0; y--) {
-                b = (buf[x + (y - 1) * s] * shift_y) >> 6;
-                buf[x + (y - 1) * s] -= b;
-                buf[x + y * s] += b;
-            }
-        }
-    } else if (shift_y < 0) {
-        shift_y = -shift_y;
-        for (x = 0; x < w; x++) {
-            for (y = 0; y < h - 1; y++) {
-                b = (buf[x + (y + 1) * s] * shift_y) >> 6;
-                buf[x + (y + 1) * s] -= b;
-                buf[x + y * s] += b;
-            }
-        }
-    }
-}
-
-/*
- * Gaussian blur.  An fast pure C implementation from MPlayer.
- */
-static void ass_gauss_blur(unsigned char *buffer, unsigned short *tmp2,
-                           int width, int height, int stride, int *m2,
-                           int r, int mwidth)
-{
-
-    int x, y;
-
-    unsigned char *s = buffer;
-    unsigned short *t = tmp2 + 1;
-    for (y = 0; y < height; y++) {
-        memset(t - 1, 0, (width + 1) * sizeof(short));
-
-        for (x = 0; x < r; x++) {
-            const int src = s[x];
-            if (src) {
-                register unsigned short *dstp = t + x - r;
-                int mx;
-                unsigned *m3 = (unsigned *) (m2 + src * mwidth);
-                for (mx = r - x; mx < mwidth; mx++) {
-                    dstp[mx] += m3[mx];
-                }
-            }
-        }
-
-        for (; x < width - r; x++) {
-            const int src = s[x];
-            if (src) {
-                register unsigned short *dstp = t + x - r;
-                int mx;
-                unsigned *m3 = (unsigned *) (m2 + src * mwidth);
-                for (mx = 0; mx < mwidth; mx++) {
-                    dstp[mx] += m3[mx];
-                }
-            }
-        }
-
-        for (; x < width; x++) {
-            const int src = s[x];
-            if (src) {
-                register unsigned short *dstp = t + x - r;
-                int mx;
-                const int x2 = r + width - x;
-                unsigned *m3 = (unsigned *) (m2 + src * mwidth);
-                for (mx = 0; mx < x2; mx++) {
-                    dstp[mx] += m3[mx];
-                }
-            }
-        }
-
-        s += stride;
-        t += width + 1;
-    }
-
-    t = tmp2;
-    for (x = 0; x < width; x++) {
-        for (y = 0; y < r; y++) {
-            unsigned short *srcp = t + y * (width + 1) + 1;
-            int src = *srcp;
-            if (src) {
-                register unsigned short *dstp = srcp - 1 + width + 1;
-                const int src2 = (src + 128) >> 8;
-                unsigned *m3 = (unsigned *) (m2 + src2 * mwidth);
-
-                int mx;
-                *srcp = 128;
-                for (mx = r - 1; mx < mwidth; mx++) {
-                    *dstp += m3[mx];
-                    dstp += width + 1;
-                }
-            }
-        }
-        for (; y < height - r; y++) {
-            unsigned short *srcp = t + y * (width + 1) + 1;
-            int src = *srcp;
-            if (src) {
-                register unsigned short *dstp = srcp - 1 - r * (width + 1);
-                const int src2 = (src + 128) >> 8;
-                unsigned *m3 = (unsigned *) (m2 + src2 * mwidth);
-
-                int mx;
-                *srcp = 128;
-                for (mx = 0; mx < mwidth; mx++) {
-                    *dstp += m3[mx];
-                    dstp += width + 1;
-                }
-            }
-        }
-        for (; y < height; y++) {
-            unsigned short *srcp = t + y * (width + 1) + 1;
-            int src = *srcp;
-            if (src) {
-                const int y2 = r + height - y;
-                register unsigned short *dstp = srcp - 1 - r * (width + 1);
-                const int src2 = (src + 128) >> 8;
-                unsigned *m3 = (unsigned *) (m2 + src2 * mwidth);
-
-                int mx;
-                *srcp = 128;
-                for (mx = 0; mx < y2; mx++) {
-                    *dstp += m3[mx];
-                    dstp += width + 1;
-                }
-            }
-        }
-        t++;
-    }
-
-    t = tmp2;
-    s = buffer;
-    for (y = 0; y < height; y++) {
-        for (x = 0; x < width; x++) {
-            s[x] = t[x] >> 8;
-        }
-        s += stride;
-        t += width + 1;
-    }
-}
-
-/**
- * \brief Blur with [[1,2,1]. [2,4,2], [1,2,1]] kernel
- * This blur is the same as the one employed by vsfilter.
- */
-static void be_blur(Bitmap *bm)
-{
-    int w = bm->w;
-    int h = bm->h;
-    int s = bm->stride;
-    unsigned char *buf = bm->buffer;
-    unsigned int x, y;
-    unsigned int old_sum, new_sum;
-
-    for (y = 0; y < h; y++) {
-        old_sum = 2 * buf[y * s];
-        for (x = 0; x < w - 1; x++) {
-            new_sum = buf[y * s + x] + buf[y * s + x + 1];
-            buf[y * s + x] = (old_sum + new_sum) >> 2;
-            old_sum = new_sum;
-        }
-    }
-
-    for (x = 0; x < w; x++) {
-        old_sum = 2 * buf[x];
-        for (y = 0; y < h - 1; y++) {
-            new_sum = buf[y * s + x] + buf[(y + 1) * s + x];
-            buf[y * s + x] = (old_sum + new_sum) >> 2;
-            old_sum = new_sum;
-        }
-    }
-}
-
-int outline_to_bitmap3(ASS_Library *library, ASS_SynthPriv *priv_blur,
-                       FT_Library ftlib, FT_Outline *outline, FT_Outline *border,
-                       Bitmap **bm_g, Bitmap **bm_o, Bitmap **bm_s,
-                       int be, double blur_radius, FT_Vector shadow_offset,
-                       int border_style)
-{
-    int bord, bbord, gbord;
-    blur_radius *= 2;
-    bbord = be > 0 ? sqrt(2 * be) : 0;
-    gbord = blur_radius > 0.0 ? blur_radius + 1 : 0;
-    bord = FFMAX(bbord, gbord);
-    if (bord == 0 && (shadow_offset.x || shadow_offset.y))
-        bord = 1;
-
-    assert(bm_g && bm_o && bm_s);
-
-    *bm_g = *bm_o = *bm_s = 0;
-
-    if (outline)
-        *bm_g = outline_to_bitmap(library, ftlib, outline, bord);
-    if (!*bm_g)
-        return 1;
-
-    if (border) {
-        *bm_o = outline_to_bitmap(library, ftlib, border, bord);
-        if (!*bm_o) {
-            return 1;
-        }
-    }
-
-    // Apply box blur (multiple passes, if requested)
-    while (be--) {
-        if (*bm_o)
-            be_blur(*bm_o);
-        else
-            be_blur(*bm_g);
-    }
-
-    // Apply gaussian blur
-    if (blur_radius > 0.0) {
-        if (*bm_o)
-            resize_tmp(priv_blur, (*bm_o)->w, (*bm_o)->h);
-        else
-            resize_tmp(priv_blur, (*bm_g)->w, (*bm_g)->h);
-        generate_tables(priv_blur, blur_radius);
-        if (*bm_o)
-            ass_gauss_blur((*bm_o)->buffer, priv_blur->tmp,
-                           (*bm_o)->w, (*bm_o)->h, (*bm_o)->stride,
-                           (int *) priv_blur->gt2, priv_blur->g_r,
-                           priv_blur->g_w);
-        else
-            ass_gauss_blur((*bm_g)->buffer, priv_blur->tmp,
-                           (*bm_g)->w, (*bm_g)->h, (*bm_g)->stride,
-                           (int *) priv_blur->gt2, priv_blur->g_r,
-                           priv_blur->g_w);
-    }
-
-    // Create shadow and fix outline as needed
-    if (*bm_o && border_style != 3) {
-        *bm_s = copy_bitmap(*bm_o);
-        fix_outline(*bm_g, *bm_o);
-    } else if (*bm_o) {
-        *bm_s = copy_bitmap(*bm_o);
-    } else
-        *bm_s = copy_bitmap(*bm_g);
-
-    assert(bm_s);
-
-    shift_bitmap(*bm_s, shadow_offset.x, shadow_offset.y);
-
-    return 0;
-}
diff --git a/lib/libass/libass/ass_bitmap.h b/lib/libass/libass/ass_bitmap.h
deleted file mode 100644
index 2a46aec447..0000000000
--- a/lib/libass/libass/ass_bitmap.h
+++ /dev/null
@@ -1,58 +0,0 @@
-/*
- * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
- *
- * This file is part of libass.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#ifndef LIBASS_BITMAP_H
-#define LIBASS_BITMAP_H
-
-#include <ft2build.h>
-#include FT_GLYPH_H
-
-#include "ass.h"
-
-typedef struct ass_synth_priv ASS_SynthPriv;
-
-ASS_SynthPriv *ass_synth_init(double);
-void ass_synth_done(ASS_SynthPriv *priv);
-
-typedef struct {
-    int left, top;
-    int w, h;                   // width, height
-    int stride;
-    unsigned char *buffer;      // w x h buffer
-} Bitmap;
-
-Bitmap *outline_to_bitmap(ASS_Library *library, FT_Library ftlib,
-                          FT_Outline *outline, int bord);
-/**
- * \brief perform glyph rendering
- * \param glyph original glyph
- * \param outline_glyph "border" glyph, produced from original by FreeType's glyph stroker
- * \param bm_g out: pointer to the bitmap of original glyph is returned here
- * \param bm_o out: pointer to the bitmap of outline (border) glyph is returned here
- * \param bm_g out: pointer to the bitmap of glyph shadow is returned here
- * \param be 1 = produces blurred bitmaps, 0 = normal bitmaps
- */
-int outline_to_bitmap3(ASS_Library *library, ASS_SynthPriv *priv_blur,
-                       FT_Library ftlib, FT_Outline *outline, FT_Outline *border,
-                       Bitmap **bm_g, Bitmap **bm_o, Bitmap **bm_s,
-                       int be, double blur_radius, FT_Vector shadow_offset,
-                       int border_style);
-
-void ass_free_bitmap(Bitmap *bm);
-
-#endif                          /* LIBASS_BITMAP_H */
diff --git a/lib/libass/libass/ass_cache.c b/lib/libass/libass/ass_cache.c
deleted file mode 100644
index 91801a0abc..0000000000
--- a/lib/libass/libass/ass_cache.c
+++ /dev/null
@@ -1,352 +0,0 @@
-/*
- * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
- * Copyright (C) 2011 Grigori Goronzy <greg@chown.ath.cx>
- *
- * This file is part of libass.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include "config.h"
-
-#include <inttypes.h>
-#include <ft2build.h>
-#include FT_OUTLINE_H
-#include <assert.h>
-
-#include "ass_utils.h"
-#include "ass_font.h"
-#include "ass_cache.h"
-
-// type-specific functions
-// create hash/compare functions for bitmap, outline and composite cache
-#define CREATE_HASH_FUNCTIONS
-#include "ass_cache_template.h"
-#define CREATE_COMPARISON_FUNCTIONS
-#include "ass_cache_template.h"
-
-// font cache
-static unsigned font_hash(void *buf, size_t len)
-{
-    ASS_FontDesc *desc = buf;
-    unsigned hval;
-    hval = fnv_32a_str(desc->family, FNV1_32A_INIT);
-    hval = fnv_32a_buf(&desc->bold, sizeof(desc->bold), hval);
-    hval = fnv_32a_buf(&desc->italic, sizeof(desc->italic), hval);
-    hval = fnv_32a_buf(&desc->treat_family_as_pattern,
-            sizeof(desc->treat_family_as_pattern), hval);
-    hval = fnv_32a_buf(&desc->vertical, sizeof(desc->vertical), hval);
-    return hval;
-}
-
-static unsigned font_compare(void *key1, void *key2, size_t key_size)
-{
-    ASS_FontDesc *a = key1;
-    ASS_FontDesc *b = key2;
-    if (strcmp(a->family, b->family) != 0)
-        return 0;
-    if (a->bold != b->bold)
-        return 0;
-    if (a->italic != b->italic)
-        return 0;
-    if (a->treat_family_as_pattern != b->treat_family_as_pattern)
-        return 0;
-    if (a->vertical != b->vertical)
-        return 0;
-    return 1;
-}
-
-static void font_destruct(void *key, void *value)
-{
-    ass_font_free(value);
-    free(key);
-}
-
-// bitmap cache
-static void bitmap_destruct(void *key, void *value)
-{
-    BitmapHashValue *v = value;
-    BitmapHashKey *k = key;
-    if (v->bm)
-        ass_free_bitmap(v->bm);
-    if (v->bm_o)
-        ass_free_bitmap(v->bm_o);
-    if (v->bm_s)
-        ass_free_bitmap(v->bm_s);
-    if (k->type == BITMAP_CLIP)
-        free(k->u.clip.text);
-    free(key);
-    free(value);
-}
-
-static size_t bitmap_size(void *value, size_t value_size)
-{
-    BitmapHashValue *val = value;
-    if (val->bm_o)
-        return val->bm_o->w * val->bm_o->h * 3;
-    else if (val->bm)
-        return val->bm->w * val->bm->h * 3;
-    return 0;
-}
-
-static unsigned bitmap_hash(void *key, size_t key_size)
-{
-    BitmapHashKey *k = key;
-    switch (k->type) {
-        case BITMAP_OUTLINE: return outline_bitmap_hash(&k->u, key_size);
-        case BITMAP_CLIP: return clip_bitmap_hash(&k->u, key_size);
-        default: return 0;
-    }
-}
-
-static unsigned bitmap_compare (void *a, void *b, size_t key_size)
-{
-    BitmapHashKey *ak = a;
-    BitmapHashKey *bk = b;
-    if (ak->type != bk->type) return 0;
-    switch (ak->type) {
-        case BITMAP_OUTLINE: return outline_bitmap_compare(&ak->u, &bk->u, key_size);
-        case BITMAP_CLIP: return clip_bitmap_compare(&ak->u, &bk->u, key_size);
-        default: return 0;
-    }
-}
-
-// composite cache
-static void composite_destruct(void *key, void *value)
-{
-    CompositeHashValue *v = value;
-    free(v->a);
-    free(v->b);
-    free(key);
-    free(value);
-}
-
-// outline cache
-
-static unsigned outline_hash(void *key, size_t key_size)
-{
-    OutlineHashKey *k = key;
-    switch (k->type) {
-        case OUTLINE_GLYPH: return glyph_hash(&k->u, key_size);
-        case OUTLINE_DRAWING: return drawing_hash(&k->u, key_size);
-        default: return 0;
-    }
-}
-
-static unsigned outline_compare(void *a, void *b, size_t key_size)
-{
-    OutlineHashKey *ak = a;
-    OutlineHashKey *bk = b;
-    if (ak->type != bk->type) return 0;
-    switch (ak->type) {
-        case OUTLINE_GLYPH: return glyph_compare(&ak->u, &bk->u, key_size);
-        case OUTLINE_DRAWING: return drawing_compare(&ak->u, &bk->u, key_size);
-        default: return 0;
-    }
-}
-
-static void outline_destruct(void *key, void *value)
-{
-    OutlineHashValue *v = value;
-    OutlineHashKey *k = key;
-    if (v->outline)
-        outline_free(v->lib, v->outline);
-    if (v->border)
-        outline_free(v->lib, v->border);
-    if (k->type == OUTLINE_DRAWING)
-        free(k->u.drawing.text);
-    free(key);
-    free(value);
-}
-
-
-
-// Cache data
-typedef struct cache_item {
-    void *key;
-    void *value;
-    struct cache_item *next;
-} CacheItem;
-
-struct cache {
-    unsigned buckets;
-    CacheItem **map;
-
-    HashFunction hash_func;
-    ItemSize size_func;
-    HashCompare compare_func;
-    CacheItemDestructor destruct_func;
-    size_t key_size;
-    size_t value_size;
-
-    size_t cache_size;
-    unsigned hits;
-    unsigned misses;
-    unsigned items;
-};
-
-// Hash for a simple (single value or array) type
-static unsigned hash_simple(void *key, size_t key_size)
-{
-    return fnv_32a_buf(key, key_size, FNV1_32A_INIT);
-}
-
-// Comparison of a simple type
-static unsigned compare_simple(void *a, void *b, size_t key_size)
-{
-    return memcmp(a, b, key_size) == 0;
-}
-
-// Default destructor
-static void destruct_simple(void *key, void *value)
-{
-    free(key);
-    free(value);
-}
-
-
-// Create a cache with type-specific hash/compare/destruct/size functions
-Cache *ass_cache_create(HashFunction hash_func, HashCompare compare_func,
-                        CacheItemDestructor destruct_func, ItemSize size_func,
-                        size_t key_size, size_t value_size)
-{
-    Cache *cache = calloc(1, sizeof(*cache));
-    cache->buckets = 0xFFFF;
-    cache->hash_func = hash_simple;
-    cache->compare_func = compare_simple;
-    cache->destruct_func = destruct_simple;
-    cache->size_func = size_func;
-    if (hash_func)
-        cache->hash_func = hash_func;
-    if (compare_func)
-        cache->compare_func = compare_func;
-    if (destruct_func)
-        cache->destruct_func = destruct_func;
-    cache->key_size = key_size;
-    cache->value_size = value_size;
-    cache->map = calloc(cache->buckets, sizeof(CacheItem *));
-
-    return cache;
-}
-
-void *ass_cache_put(Cache *cache, void *key, void *value)
-{
-    unsigned bucket = cache->hash_func(key, cache->key_size) % cache->buckets;
-    CacheItem **item = &cache->map[bucket];
-    while (*item)
-        item = &(*item)->next;
-    (*item) = calloc(1, sizeof(CacheItem));
-    (*item)->key = malloc(cache->key_size);
-    (*item)->value = malloc(cache->value_size);
-    memcpy((*item)->key, key, cache->key_size);
-    memcpy((*item)->value, value, cache->value_size);
-
-    cache->items++;
-    if (cache->size_func)
-        cache->cache_size += cache->size_func(value, cache->value_size);
-    else
-        cache->cache_size++;
-
-    return (*item)->value;
-}
-
-void *ass_cache_get(Cache *cache, void *key)
-{
-    unsigned bucket = cache->hash_func(key, cache->key_size) % cache->buckets;
-    CacheItem *item = cache->map[bucket];
-    while (item) {
-        if (cache->compare_func(key, item->key, cache->key_size)) {
-            cache->hits++;
-            return item->value;
-        }
-        item = item->next;
-    }
-    cache->misses++;
-    return NULL;
-}
-
-int ass_cache_empty(Cache *cache, size_t max_size)
-{
-    int i;
-
-    if (cache->cache_size < max_size)
-        return 0;
-
-    for (i = 0; i < cache->buckets; i++) {
-        CacheItem *item = cache->map[i];
-        while (item) {
-            CacheItem *next = item->next;
-            cache->destruct_func(item->key, item->value);
-            free(item);
-            item = next;
-        }
-        cache->map[i] = NULL;
-    }
-
-    cache->items = cache->hits = cache->misses = cache->cache_size = 0;
-
-    return 1;
-}
-
-void ass_cache_stats(Cache *cache, size_t *size, unsigned *hits,
-                     unsigned *misses, unsigned *count)
-{
-    if (size)
-        *size = cache->cache_size;
-    if (hits)
-        *hits = cache->hits;
-    if (misses)
-        *misses = cache->misses;
-    if (count)
-        *count = cache->items;
-}
-
-void ass_cache_done(Cache *cache)
-{
-    ass_cache_empty(cache, 0);
-    free(cache->map);
-    free(cache);
-}
-
-// Type-specific creation function
-Cache *ass_font_cache_create(void)
-{
-    return ass_cache_create(font_hash, font_compare, font_destruct,
-            (ItemSize)NULL, sizeof(ASS_FontDesc), sizeof(ASS_Font));
-}
-
-Cache *ass_outline_cache_create(void)
-{
-    return ass_cache_create(outline_hash, outline_compare, outline_destruct,
-            NULL, sizeof(OutlineHashKey), sizeof(OutlineHashValue));
-}
-
-Cache *ass_glyph_metrics_cache_create(void)
-{
-    return ass_cache_create(glyph_metrics_hash, glyph_metrics_compare, NULL,
-            (ItemSize) NULL, sizeof(GlyphMetricsHashKey),
-            sizeof(GlyphMetricsHashValue));
-}
-
-Cache *ass_bitmap_cache_create(void)
-{
-    return ass_cache_create(bitmap_hash, bitmap_compare, bitmap_destruct,
-            bitmap_size, sizeof(BitmapHashKey), sizeof(BitmapHashValue));
-}
-
-Cache *ass_composite_cache_create(void)
-{
-    return ass_cache_create(composite_hash, composite_compare,
-            composite_destruct, (ItemSize)NULL, sizeof(CompositeHashKey),
-            sizeof(CompositeHashValue));
-}
diff --git a/lib/libass/libass/ass_cache.h b/lib/libass/libass/ass_cache.h
deleted file mode 100644
index 7375f04343..0000000000
--- a/lib/libass/libass/ass_cache.h
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
- * Copyright (C) 2011 Grigori Goronzy <greg@chown.ath.cx>
- *
- * This file is part of libass.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#ifndef LIBASS_CACHE_H
-#define LIBASS_CACHE_H
-
-#include "ass.h"
-#include "ass_font.h"
-#include "ass_bitmap.h"
-
-typedef struct cache Cache;
-
-// cache values
-
-typedef struct {
-    Bitmap *bm;               // the actual bitmaps
-    Bitmap *bm_o;
-    Bitmap *bm_s;
-} BitmapHashValue;
-
-typedef struct {
-    unsigned char *a;
-    unsigned char *b;
-} CompositeHashValue;
-
-typedef struct {
-    FT_Library lib;
-    FT_Outline *outline;
-    FT_Outline *border;
-    FT_BBox bbox_scaled;        // bbox after scaling, but before rotation
-    FT_Vector advance;          // 26.6, advance distance to the next outline in line
-    int asc, desc;              // ascender/descender
-} OutlineHashValue;
-
-typedef struct {
-    FT_Glyph_Metrics metrics;
-} GlyphMetricsHashValue;
-
-// Create definitions for bitmap, outline and composite hash keys
-#define CREATE_STRUCT_DEFINITIONS
-#include "ass_cache_template.h"
-
-// Type-specific function pointers
-typedef unsigned(*HashFunction)(void *key, size_t key_size);
-typedef size_t(*ItemSize)(void *value, size_t value_size);
-typedef unsigned(*HashCompare)(void *a, void *b, size_t key_size);
-typedef void(*CacheItemDestructor)(void *key, void *value);
-
-// cache hash keys
-
-typedef struct outline_hash_key {
-    enum {
-        OUTLINE_GLYPH,
-        OUTLINE_DRAWING,
-    } type;
-    union {
-        GlyphHashKey glyph;
-        DrawingHashKey drawing;
-    } u;
-} OutlineHashKey;
-
-typedef struct bitmap_hash_key {
-    enum {
-        BITMAP_OUTLINE,
-        BITMAP_CLIP,
-    } type;
-    union {
-        OutlineBitmapHashKey outline;
-        ClipMaskHashKey clip;
-    } u;
-} BitmapHashKey;
-
-Cache *ass_cache_create(HashFunction hash_func, HashCompare compare_func,
-                        CacheItemDestructor destruct_func, ItemSize size_func,
-                        size_t key_size, size_t value_size);
-void *ass_cache_put(Cache *cache, void *key, void *value);
-void *ass_cache_get(Cache *cache, void *key);
-int ass_cache_empty(Cache *cache, size_t max_size);
-void ass_cache_stats(Cache *cache, size_t *size, unsigned *hits,
-                     unsigned *misses, unsigned *count);
-void ass_cache_done(Cache *cache);
-Cache *ass_font_cache_create(void);
-Cache *ass_outline_cache_create(void);
-Cache *ass_glyph_metrics_cache_create(void);
-Cache *ass_bitmap_cache_create(void);
-Cache *ass_composite_cache_create(void);
-
-#endif                          /* LIBASS_CACHE_H */
diff --git a/lib/libass/libass/ass_cache_template.h b/lib/libass/libass/ass_cache_template.h
deleted file mode 100644
index f9aab77919..0000000000
--- a/lib/libass/libass/ass_cache_template.h
+++ /dev/null
@@ -1,144 +0,0 @@
-#ifdef CREATE_STRUCT_DEFINITIONS
-#undef CREATE_STRUCT_DEFINITIONS
-#define START(funcname, structname) \
-    typedef struct structname {
-#define GENERIC(type, member) \
-        type member;
-#define STRING(member) \
-        char *member;
-#define FTVECTOR(member) \
-        FT_Vector member;
-#define BITMAPHASHKEY(member) \
-        BitmapHashKey member;
-#define END(typedefnamename) \
-    } typedefnamename;
-
-#elif defined(CREATE_COMPARISON_FUNCTIONS)
-#undef CREATE_COMPARISON_FUNCTIONS
-#define START(funcname, structname) \
-    static unsigned funcname##_compare(void *key1, void *key2, size_t key_size) \
-    { \
-        struct structname *a = key1; \
-        struct structname *b = key2; \
-        return // conditions follow
-#define GENERIC(type, member) \
-            a->member == b->member &&
-#define STRING(member) \
-            strcmp(a->member, b->member) == 0 &&
-#define FTVECTOR(member) \
-            a->member.x == b->member.x && a->member.y == b->member.y &&
-#define BITMAPHASHKEY(member) \
-            bitmap_compare(&a->member, &b->member, sizeof(a->member)) &&
-#define END(typedefname) \
-            1; \
-    }
-
-#elif defined(CREATE_HASH_FUNCTIONS)
-#undef CREATE_HASH_FUNCTIONS
-#define START(funcname, structname) \
-    static unsigned funcname##_hash(void *buf, size_t len) \
-    { \
-        struct structname *p = buf; \
-        unsigned hval = FNV1_32A_INIT;
-#define GENERIC(type, member) \
-        hval = fnv_32a_buf(&p->member, sizeof(p->member), hval);
-#define STRING(member) \
-        hval = fnv_32a_str(p->member, hval);
-#define FTVECTOR(member) GENERIC(, member.x); GENERIC(, member.y);
-#define BITMAPHASHKEY(member) { \
-        unsigned temp = bitmap_hash(&p->member, sizeof(p->member)); \
-        hval = fnv_32a_buf(&temp, sizeof(temp), hval); \
-        }
-#define END(typedefname) \
-        return hval; \
-    }
-
-#else
-#error missing defines
-#endif
-
-
-
-// describes an outline bitmap
-START(outline_bitmap, outline_bitmap_hash_key)
-    GENERIC(OutlineHashValue *, outline)
-    GENERIC(char, be) // blur edges
-    GENERIC(double, blur) // gaussian blur
-    GENERIC(int, frx) // signed 16.16
-    GENERIC(int, fry) // signed 16.16
-    GENERIC(int, frz) // signed 16.16
-    GENERIC(int, fax) // signed 16.16
-    GENERIC(int, fay) // signed 16.16
-    // shift vector that was added to glyph before applying rotation
-    // = 0, if frx = fry = frx = 0
-    // = (glyph base point) - (rotation origin), otherwise
-    GENERIC(int, shift_x)
-    GENERIC(int, shift_y)
-    FTVECTOR(advance) // subpixel shift vector
-    FTVECTOR(shadow_offset) // shadow subpixel shift
-END(OutlineBitmapHashKey)
-
-// describe a clip mask bitmap
-START(clip_bitmap, clip_bitmap_hash_key)
-    STRING(text)
-END(ClipMaskHashKey)
-
-// describes an outline glyph
-START(glyph, glyph_hash_key)
-    GENERIC(ASS_Font *, font)
-    GENERIC(double, size) // font size
-    GENERIC(int, face_index)
-    GENERIC(int, glyph_index)
-    GENERIC(int, bold)
-    GENERIC(int, italic)
-    GENERIC(unsigned, scale_x) // 16.16
-    GENERIC(unsigned, scale_y) // 16.16
-    FTVECTOR(outline) // border width, 16.16
-    GENERIC(unsigned, flags)    // glyph decoration flags
-    GENERIC(unsigned, border_style)
-END(GlyphHashKey)
-
-START(glyph_metrics, glyph_metrics_hash_key)
-    GENERIC(ASS_Font *, font)
-    GENERIC(double, size)
-    GENERIC(int, face_index)
-    GENERIC(int, glyph_index)
-    GENERIC(unsigned, scale_x)
-    GENERIC(unsigned, scale_y)
-END(GlyphMetricsHashKey)
-
-// describes an outline drawing
-START(drawing, drawing_hash_key)
-    GENERIC(unsigned, scale_x)
-    GENERIC(unsigned, scale_y)
-    GENERIC(int, pbo)
-    FTVECTOR(outline)
-    GENERIC(unsigned, border_style)
-    GENERIC(int, scale)
-    GENERIC(unsigned, hash)
-    STRING(text)
-END(DrawingHashKey)
-
-// Cache for composited bitmaps
-START(composite, composite_hash_key)
-    GENERIC(int, aw)
-    GENERIC(int, ah)
-    GENERIC(int, bw)
-    GENERIC(int, bh)
-    GENERIC(int, ax)
-    GENERIC(int, ay)
-    GENERIC(int, bx)
-    GENERIC(int, by)
-    GENERIC(int, as)
-    GENERIC(int, bs)
-    GENERIC(unsigned char *, a)
-    GENERIC(unsigned char *, b)
-END(CompositeHashKey)
-
-
-#undef START
-#undef GENERIC
-#undef STRING
-#undef FTVECTOR
-#undef BITMAPHASHKEY
-#undef END
diff --git a/lib/libass/libass/ass_drawing.c b/lib/libass/libass/ass_drawing.c
deleted file mode 100644
index 764e6f66b0..0000000000
--- a/lib/libass/libass/ass_drawing.c
+++ /dev/null
@@ -1,462 +0,0 @@
-/*
- * Copyright (C) 2009 Grigori Goronzy <greg@geekmind.org>
- *
- * This file is part of libass.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include <ft2build.h>
-#include FT_OUTLINE_H
-#include FT_BBOX_H
-#include <math.h>
-
-#include "ass_utils.h"
-#include "ass_drawing.h"
-
-#define CURVE_ACCURACY 64.0
-#define GLYPH_INITIAL_POINTS 100
-#define GLYPH_INITIAL_CONTOURS 5
-
-/*
- * \brief Add a single point to a contour.
- */
-static inline void drawing_add_point(ASS_Drawing *drawing,
-                                     FT_Vector *point)
-{
-    FT_Outline *ol = &drawing->outline;
-
-    if (ol->n_points >= drawing->max_points) {
-        drawing->max_points *= 2;
-        ol->points = realloc(ol->points, sizeof(FT_Vector) *
-                             drawing->max_points);
-        ol->tags = realloc(ol->tags, drawing->max_points);
-    }
-
-    ol->points[ol->n_points].x = point->x;
-    ol->points[ol->n_points].y = point->y;
-    ol->tags[ol->n_points] = 1;
-    ol->n_points++;
-}
-
-/*
- * \brief Close a contour and check outline size overflow.
- */
-static inline void drawing_close_shape(ASS_Drawing *drawing)
-{
-    FT_Outline *ol = &drawing->outline;
-
-    if (ol->n_contours >= drawing->max_contours) {
-        drawing->max_contours *= 2;
-        ol->contours = realloc(ol->contours, sizeof(short) *
-                               drawing->max_contours);
-    }
-
-    if (ol->n_points) {
-        ol->contours[ol->n_contours] = ol->n_points - 1;
-        ol->n_contours++;
-    }
-}
-
-/*
- * \brief Prepare drawing for parsing.  This just sets a few parameters.
- */
-static void drawing_prepare(ASS_Drawing *drawing)
-{
-    // Scaling parameters
-    drawing->point_scale_x = drawing->scale_x *
-                             64.0 / (1 << (drawing->scale - 1));
-    drawing->point_scale_y = drawing->scale_y *
-                             64.0 / (1 << (drawing->scale - 1));
-}
-
-/*
- * \brief Finish a drawing.  This only sets the horizontal advance according
- * to the outline's bbox at the moment.
- */
-static void drawing_finish(ASS_Drawing *drawing, int raw_mode)
-{
-    int i, offset;
-    FT_BBox bbox = drawing->cbox;
-    FT_Outline *ol = &drawing->outline;
-
-    // Close the last contour
-    drawing_close_shape(drawing);
-
-    if (drawing->library)
-        ass_msg(drawing->library, MSGL_V,
-                "Parsed drawing with %d points and %d contours", ol->n_points,
-                ol->n_contours);
-
-    if (raw_mode)
-        return;
-
-    drawing->advance.x = bbox.xMax - bbox.xMin;
-
-    drawing->desc = double_to_d6(-drawing->pbo * drawing->scale_y);
-    drawing->asc = bbox.yMax - bbox.yMin + drawing->desc;
-
-    // Place it onto the baseline
-    offset = (bbox.yMax - bbox.yMin) + double_to_d6(-drawing->pbo *
-                                                    drawing->scale_y);
-    for (i = 0; i < ol->n_points; i++)
-        ol->points[i].y += offset;
-}
-
-/*
- * \brief Check whether a number of items on the list is available
- */
-static int token_check_values(ASS_DrawingToken *token, int i, int type)
-{
-    int j;
-    for (j = 0; j < i; j++) {
-        if (!token || token->type != type) return 0;
-        token = token->next;
-    }
-
-    return 1;
-}
-
-/*
- * \brief Tokenize a drawing string into a list of ASS_DrawingToken
- * This also expands points for closing b-splines
- */
-static ASS_DrawingToken *drawing_tokenize(char *str)
-{
-    char *p = str;
-    int i, val, type = -1, is_set = 0;
-    FT_Vector point = {0, 0};
-
-    ASS_DrawingToken *root = NULL, *tail = NULL, *spline_start = NULL;
-
-    while (*p) {
-        if (*p == 'c' && spline_start) {
-            // Close b-splines: add the first three points of the b-spline
-            // back to the end
-            if (token_check_values(spline_start->next, 2, TOKEN_B_SPLINE)) {
-                for (i = 0; i < 3; i++) {
-                    tail->next = calloc(1, sizeof(ASS_DrawingToken));
-                    tail->next->prev = tail;
-                    tail = tail->next;
-                    tail->type = TOKEN_B_SPLINE;
-                    tail->point = spline_start->point;
-                    spline_start = spline_start->next;
-                }
-                spline_start = NULL;
-            }
-        } else if (!is_set && mystrtoi(&p, &val)) {
-            point.x = val;
-            is_set = 1;
-            p--;
-        } else if (is_set == 1 && mystrtoi(&p, &val)) {
-            point.y = val;
-            is_set = 2;
-            p--;
-        } else if (*p == 'm')
-            type = TOKEN_MOVE;
-        else if (*p == 'n')
-            type = TOKEN_MOVE_NC;
-        else if (*p == 'l')
-            type = TOKEN_LINE;
-        else if (*p == 'b')
-            type = TOKEN_CUBIC_BEZIER;
-        else if (*p == 'q')
-            type = TOKEN_CONIC_BEZIER;
-        else if (*p == 's')
-            type = TOKEN_B_SPLINE;
-        // We're simply ignoring TOKEN_EXTEND_B_SPLINE here.
-        // This is not harmful at all, since it can be ommitted with
-        // similar result (the spline is extended anyway).
-
-        if (type != -1 && is_set == 2) {
-            if (root) {
-                tail->next = calloc(1, sizeof(ASS_DrawingToken));
-                tail->next->prev = tail;
-                tail = tail->next;
-            } else
-                root = tail = calloc(1, sizeof(ASS_DrawingToken));
-            tail->type = type;
-            tail->point = point;
-            is_set = 0;
-            if (type == TOKEN_B_SPLINE && !spline_start)
-                spline_start = tail->prev;
-        }
-        p++;
-    }
-
-    return root;
-}
-
-/*
- * \brief Free a list of tokens
- */
-static void drawing_free_tokens(ASS_DrawingToken *token)
-{
-    while (token) {
-        ASS_DrawingToken *at = token;
-        token = token->next;
-        free(at);
-    }
-}
-
-/*
- * \brief Update drawing cbox
- */
-static inline void update_cbox(ASS_Drawing *drawing, FT_Vector *point)
-{
-    FT_BBox *box = &drawing->cbox;
-
-    box->xMin = FFMIN(box->xMin, point->x);
-    box->xMax = FFMAX(box->xMax, point->x);
-    box->yMin = FFMIN(box->yMin, point->y);
-    box->yMax = FFMAX(box->yMax, point->y);
-}
-
-/*
- * \brief Translate and scale a point coordinate according to baseline
- * offset and scale.
- */
-static inline void translate_point(ASS_Drawing *drawing, FT_Vector *point)
-{
-    point->x = drawing->point_scale_x * point->x;
-    point->y = drawing->point_scale_y * -point->y;
-
-    update_cbox(drawing, point);
-}
-
-/*
- * \brief Evaluate a curve into lines
- * This curve evaluator is also used in VSFilter (RTS.cpp); it's a simple
- * implementation of the De Casteljau algorithm.
- */
-static void drawing_evaluate_curve(ASS_Drawing *drawing,
-                                   ASS_DrawingToken *token, char spline,
-                                   int started)
-{
-    double cx3, cx2, cx1, cx0, cy3, cy2, cy1, cy0;
-    double t, h, max_accel, max_accel1, max_accel2;
-    int x0, y0, x1, y1, x2, y2, x3, y3;
-    FT_Vector cur = {0, 0};
-
-    cur = token->point;
-    translate_point(drawing, &cur);
-    x0 = cur.x;
-    y0 = cur.y;
-    token = token->next;
-    cur = token->point;
-    translate_point(drawing, &cur);
-    x1 = cur.x;
-    y1 = cur.y;
-    token = token->next;
-    cur = token->point;
-    translate_point(drawing, &cur);
-    x2 = cur.x;
-    y2 = cur.y;
-    token = token->next;
-    cur = token->point;
-    translate_point(drawing, &cur);
-    x3 = cur.x;
-    y3 = cur.y;
-
-    if (spline) {
-        // 1   [-1 +3 -3 +1]
-        // - * [+3 -6 +3  0]
-        // 6   [-3  0 +3  0]
-        //	   [+1 +4 +1  0]
-
-        double div6 = 1.0/6.0;
-
-        cx3 = div6*(-  x0+3*x1-3*x2+x3);
-        cx2 = div6*( 3*x0-6*x1+3*x2);
-        cx1 = div6*(-3*x0	   +3*x2);
-        cx0 = div6*(   x0+4*x1+1*x2);
-
-        cy3 = div6*(-  y0+3*y1-3*y2+y3);
-        cy2 = div6*( 3*y0-6*y1+3*y2);
-        cy1 = div6*(-3*y0     +3*y2);
-        cy0 = div6*(   y0+4*y1+1*y2);
-    } else {
-        // [-1 +3 -3 +1]
-        // [+3 -6 +3  0]
-        // [-3 +3  0  0]
-        // [+1  0  0  0]
-
-        cx3 = -  x0+3*x1-3*x2+x3;
-        cx2 =  3*x0-6*x1+3*x2;
-        cx1 = -3*x0+3*x1;
-        cx0 =    x0;
-
-        cy3 = -  y0+3*y1-3*y2+y3;
-        cy2 =  3*y0-6*y1+3*y2;
-        cy1 = -3*y0+3*y1;
-        cy0 =    y0;
-    }
-
-    max_accel1 = fabs(2 * cy2) + fabs(6 * cy3);
-    max_accel2 = fabs(2 * cx2) + fabs(6 * cx3);
-
-    max_accel = FFMAX(max_accel1, max_accel2);
-    h = 1.0;
-
-    if (max_accel > CURVE_ACCURACY)
-        h = sqrt(CURVE_ACCURACY / max_accel);
-
-    if (!started) {
-        cur.x = cx0;
-        cur.y = cy0;
-        drawing_add_point(drawing, &cur);
-    }
-
-    for (t = 0; t < 1.0; t += h) {
-        cur.x = cx0 + t * (cx1 + t * (cx2 + t * cx3));
-        cur.y = cy0 + t * (cy1 + t * (cy2 + t * cy3));
-        drawing_add_point(drawing, &cur);
-    }
-
-    cur.x = cx0 + cx1 + cx2 + cx3;
-    cur.y = cy0 + cy1 + cy2 + cy3;
-    drawing_add_point(drawing, &cur);
-}
-
-/*
- * \brief Create and initialize a new drawing and return it
- */
-ASS_Drawing *ass_drawing_new(ASS_Library *lib, FT_Library ftlib)
-{
-    ASS_Drawing *drawing;
-
-    drawing = calloc(1, sizeof(*drawing));
-    drawing->text = calloc(1, DRAWING_INITIAL_SIZE);
-    drawing->size = DRAWING_INITIAL_SIZE;
-    drawing->cbox.xMin = drawing->cbox.yMin = INT_MAX;
-    drawing->cbox.xMax = drawing->cbox.yMax = INT_MIN;
-    drawing->ftlibrary = ftlib;
-    drawing->library   = lib;
-    drawing->scale_x = 1.;
-    drawing->scale_y = 1.;
-    drawing->max_contours = GLYPH_INITIAL_CONTOURS;
-    drawing->max_points = GLYPH_INITIAL_POINTS;
-
-    FT_Outline_New(drawing->ftlibrary, GLYPH_INITIAL_POINTS,
-            GLYPH_INITIAL_CONTOURS, &drawing->outline);
-    drawing->outline.n_contours = 0;
-    drawing->outline.n_points = 0;
-
-    return drawing;
-}
-
-/*
- * \brief Free a drawing
- */
-void ass_drawing_free(ASS_Drawing* drawing)
-{
-    if (drawing) {
-        free(drawing->text);
-        FT_Outline_Done(drawing->ftlibrary, &drawing->outline);
-    }
-    free(drawing);
-}
-
-/*
- * \brief Add one ASCII character to the drawing text buffer
- */
-void ass_drawing_add_char(ASS_Drawing* drawing, char symbol)
-{
-    drawing->text[drawing->i++] = symbol;
-    drawing->text[drawing->i] = 0;
-
-    if (drawing->i + 1 >= drawing->size) {
-        drawing->size *= 2;
-        drawing->text = realloc(drawing->text, drawing->size);
-    }
-}
-
-/*
- * \brief Create a hashcode for the drawing
- * XXX: To avoid collisions a better hash algorithm might be useful.
- */
-void ass_drawing_hash(ASS_Drawing* drawing)
-{
-    drawing->hash = fnv_32a_str(drawing->text, FNV1_32A_INIT);
-}
-
-/*
- * \brief Convert token list to outline.  Calls the line and curve evaluators.
- */
-FT_Outline *ass_drawing_parse(ASS_Drawing *drawing, int raw_mode)
-{
-    int started = 0;
-    ASS_DrawingToken *token;
-    FT_Vector pen = {0, 0};
-
-    drawing->tokens = drawing_tokenize(drawing->text);
-    drawing_prepare(drawing);
-
-    token = drawing->tokens;
-    while (token) {
-        // Draw something according to current command
-        switch (token->type) {
-        case TOKEN_MOVE_NC:
-            pen = token->point;
-            translate_point(drawing, &pen);
-            token = token->next;
-            break;
-        case TOKEN_MOVE:
-            pen = token->point;
-            translate_point(drawing, &pen);
-            if (started) {
-                drawing_close_shape(drawing);
-                started = 0;
-            }
-            token = token->next;
-            break;
-        case TOKEN_LINE: {
-            FT_Vector to;
-            to = token->point;
-            translate_point(drawing, &to);
-            if (!started) drawing_add_point(drawing, &pen);
-            drawing_add_point(drawing, &to);
-            started = 1;
-            token = token->next;
-            break;
-        }
-        case TOKEN_CUBIC_BEZIER:
-            if (token_check_values(token, 3, TOKEN_CUBIC_BEZIER) &&
-                token->prev) {
-                drawing_evaluate_curve(drawing, token->prev, 0, started);
-                token = token->next;
-                token = token->next;
-                token = token->next;
-                started = 1;
-            } else
-                token = token->next;
-            break;
-        case TOKEN_B_SPLINE:
-            if (token_check_values(token, 3, TOKEN_B_SPLINE) &&
-                token->prev) {
-                drawing_evaluate_curve(drawing, token->prev, 1, started);
-                token = token->next;
-                started = 1;
-            } else
-                token = token->next;
-            break;
-        default:
-            token = token->next;
-            break;
-        }
-    }
-
-    drawing_finish(drawing, raw_mode);
-    drawing_free_tokens(drawing->tokens);
-    return &drawing->outline;
-}
diff --git a/lib/libass/libass/ass_drawing.h b/lib/libass/libass/ass_drawing.h
deleted file mode 100644
index b17d7e3bea..0000000000
--- a/lib/libass/libass/ass_drawing.h
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- * Copyright (C) 2009 Grigori Goronzy <greg@geekmind.org>
- *
- * This file is part of libass.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#ifndef LIBASS_DRAWING_H
-#define LIBASS_DRAWING_H
-
-#include <ft2build.h>
-#include FT_OUTLINE_H
-
-#include "ass.h"
-
-#define DRAWING_INITIAL_SIZE 256
-
-typedef enum {
-    TOKEN_MOVE,
-    TOKEN_MOVE_NC,
-    TOKEN_LINE,
-    TOKEN_CUBIC_BEZIER,
-    TOKEN_CONIC_BEZIER,
-    TOKEN_B_SPLINE,
-    TOKEN_EXTEND_SPLINE,
-    TOKEN_CLOSE
-} ASS_TokenType;
-
-typedef struct ass_drawing_token {
-    ASS_TokenType type;
-    FT_Vector point;
-    struct ass_drawing_token *next;
-    struct ass_drawing_token *prev;
-} ASS_DrawingToken;
-
-typedef struct {
-    char *text; // drawing string
-    int i;      // text index
-    int scale;  // scale (1-64) for subpixel accuracy
-    double pbo; // drawing will be shifted in y direction by this amount
-    double scale_x;     // FontScaleX
-    double scale_y;     // FontScaleY
-    int asc;            // ascender
-    int desc;           // descender
-    FT_Outline outline; // target outline
-    FT_Vector advance;  // advance (from cbox)
-    int hash;           // hash value (for caching)
-
-    // private
-    FT_Library ftlibrary;   // needed for font ops
-    ASS_Library *library;
-    int size;           // current buffer size
-    ASS_DrawingToken *tokens;    // tokenized drawing
-    int max_points;     // current maximum size
-    int max_contours;
-    double point_scale_x;
-    double point_scale_y;
-    FT_BBox cbox;   // bounding box, or let's say... VSFilter's idea of it
-} ASS_Drawing;
-
-ASS_Drawing *ass_drawing_new(ASS_Library *lib, FT_Library ftlib);
-void ass_drawing_free(ASS_Drawing* drawing);
-void ass_drawing_add_char(ASS_Drawing* drawing, char symbol);
-void ass_drawing_hash(ASS_Drawing* drawing);
-FT_Outline *ass_drawing_parse(ASS_Drawing *drawing, int raw_mode);
-
-#endif /* LIBASS_DRAWING_H */
diff --git a/lib/libass/libass/ass_font.c b/lib/libass/libass/ass_font.c
deleted file mode 100644
index 4b6a71b6d5..0000000000
--- a/lib/libass/libass/ass_font.c
+++ /dev/null
@@ -1,776 +0,0 @@
-/*
- * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
- *
- * This file is part of libass.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include "config.h"
-
-#include <inttypes.h>
-#include <ft2build.h>
-#include FT_FREETYPE_H
-#include FT_SYNTHESIS_H
-#include FT_GLYPH_H
-#include FT_TRUETYPE_TABLES_H
-#include FT_OUTLINE_H
-#ifndef _WIN32
-#include <strings.h>
-#endif
-
-#include "ass.h"
-#include "ass_library.h"
-#include "ass_font.h"
-#include "ass_fontconfig.h"
-#include "ass_utils.h"
-#include "ass_shaper.h"
-
-/**
- * Select a good charmap, prefer Microsoft Unicode charmaps.
- * Otherwise, let FreeType decide.
- */
-static void charmap_magic(ASS_Library *library, FT_Face face)
-{
-    int i;
-    int ms_cmap = -1;
-
-    // Search for a Microsoft Unicode cmap
-    for (i = 0; i < face->num_charmaps; ++i) {
-        FT_CharMap cmap = face->charmaps[i];
-        unsigned pid = cmap->platform_id;
-        unsigned eid = cmap->encoding_id;
-        if (pid == 3 /*microsoft */
-            && (eid == 1 /*unicode bmp */
-                || eid == 10 /*full unicode */ )) {
-            FT_Set_Charmap(face, cmap);
-            return;
-        } else if (pid == 3 && ms_cmap < 0)
-            ms_cmap = i;
-    }
-
-    // Try the first Microsoft cmap if no Microsoft Unicode cmap was found
-    if (ms_cmap >= 0) {
-        FT_CharMap cmap = face->charmaps[ms_cmap];
-        FT_Set_Charmap(face, cmap);
-        return;
-    }
-
-    if (!face->charmap) {
-        if (face->num_charmaps == 0) {
-            ass_msg(library, MSGL_WARN, "Font face with no charmaps");
-            return;
-        }
-        ass_msg(library, MSGL_WARN,
-                "No charmap autodetected, trying the first one");
-        FT_Set_Charmap(face, face->charmaps[0]);
-        return;
-    }
-}
-
-/**
- * \brief find a memory font by name
- */
-static int find_font(ASS_Library *library, char *name)
-{
-    int i;
-    for (i = 0; i < library->num_fontdata; ++i)
-        if (strcasecmp(name, library->fontdata[i].name) == 0)
-            return i;
-    return -1;
-}
-
-static void buggy_font_workaround(FT_Face face)
-{
-    // Some fonts have zero Ascender/Descender fields in 'hhea' table.
-    // In this case, get the information from 'os2' table or, as
-    // a last resort, from face.bbox.
-    if (face->ascender + face->descender == 0 || face->height == 0) {
-        TT_OS2 *os2 = FT_Get_Sfnt_Table(face, ft_sfnt_os2);
-        if (os2) {
-            face->ascender = os2->sTypoAscender;
-            face->descender = os2->sTypoDescender;
-            face->height = face->ascender - face->descender;
-        } else {
-            face->ascender = face->bbox.yMax;
-            face->descender = face->bbox.yMin;
-            face->height = face->ascender - face->descender;
-        }
-    }
-}
-
-/**
- * \brief Select a face with the given charcode and add it to ASS_Font
- * \return index of the new face in font->faces, -1 if failed
- */
-static int add_face(void *fc_priv, ASS_Font *font, uint32_t ch)
-{
-    char *path;
-    int index;
-    FT_Face face;
-    int error;
-    int mem_idx;
-
-    if (font->n_faces == ASS_FONT_MAX_FACES)
-        return -1;
-
-    path =
-        fontconfig_select(font->library, fc_priv, font->desc.family,
-                          font->desc.treat_family_as_pattern,
-                          font->desc.bold, font->desc.italic, &index, ch);
-    if (!path)
-        return -1;
-
-    mem_idx = find_font(font->library, path);
-    if (mem_idx >= 0) {
-        error =
-            FT_New_Memory_Face(font->ftlibrary,
-                               (unsigned char *) font->library->
-                               fontdata[mem_idx].data,
-                               font->library->fontdata[mem_idx].size, index,
-                               &face);
-        if (error) {
-            ass_msg(font->library, MSGL_WARN,
-                    "Error opening memory font: '%s'", path);
-            free(path);
-            return -1;
-        }
-    } else {
-        error = FT_New_Face(font->ftlibrary, path, index, &face);
-        if (error) {
-            ass_msg(font->library, MSGL_WARN,
-                    "Error opening font: '%s', %d", path, index);
-            free(path);
-            return -1;
-        }
-    }
-    charmap_magic(font->library, face);
-    buggy_font_workaround(face);
-
-    font->faces[font->n_faces++] = face;
-    ass_face_set_size(face, font->size);
-    free(path);
-    return font->n_faces - 1;
-}
-
-/**
- * \brief Create a new ASS_Font according to "desc" argument
- */
-ASS_Font *ass_font_new(Cache *font_cache, ASS_Library *library,
-                       FT_Library ftlibrary, void *fc_priv,
-                       ASS_FontDesc *desc)
-{
-    int error;
-    ASS_Font *fontp;
-    ASS_Font font;
-
-    fontp = ass_cache_get(font_cache, desc);
-    if (fontp)
-        return fontp;
-
-    font.library = library;
-    font.ftlibrary = ftlibrary;
-    font.shaper_priv = NULL;
-    font.n_faces = 0;
-    font.desc.family = strdup(desc->family);
-    font.desc.treat_family_as_pattern = desc->treat_family_as_pattern;
-    font.desc.bold = desc->bold;
-    font.desc.italic = desc->italic;
-    font.desc.vertical = desc->vertical;
-
-    font.scale_x = font.scale_y = 1.;
-    font.v.x = font.v.y = 0;
-    font.size = 0.;
-
-    error = add_face(fc_priv, &font, 0);
-    if (error == -1) {
-        free(font.desc.family);
-        return 0;
-    } else
-        return ass_cache_put(font_cache, &font.desc, &font);
-}
-
-/**
- * \brief Set font transformation matrix and shift vector
- **/
-void ass_font_set_transform(ASS_Font *font, double scale_x,
-                            double scale_y, FT_Vector *v)
-{
-    font->scale_x = scale_x;
-    font->scale_y = scale_y;
-    if (v) {
-        font->v.x = v->x;
-        font->v.y = v->y;
-    }
-}
-
-void ass_face_set_size(FT_Face face, double size)
-{
-    TT_HoriHeader *hori = FT_Get_Sfnt_Table(face, ft_sfnt_hhea);
-    TT_OS2 *os2 = FT_Get_Sfnt_Table(face, ft_sfnt_os2);
-    double mscale = 1.;
-    FT_Size_RequestRec rq;
-    FT_Size_Metrics *m = &face->size->metrics;
-    // VSFilter uses metrics from TrueType OS/2 table
-    // The idea was borrowed from asa (http://asa.diac24.net)
-    if (hori && os2) {
-        int hori_height = hori->Ascender - hori->Descender;
-        int os2_height = os2->usWinAscent + os2->usWinDescent;
-        if (hori_height && os2_height)
-            mscale = (double) hori_height / os2_height;
-    }
-    memset(&rq, 0, sizeof(rq));
-    rq.type = FT_SIZE_REQUEST_TYPE_REAL_DIM;
-    rq.width = 0;
-    rq.height = double_to_d6(size * mscale);
-    rq.horiResolution = rq.vertResolution = 0;
-    FT_Request_Size(face, &rq);
-    m->ascender /= mscale;
-    m->descender /= mscale;
-    m->height /= mscale;
-}
-
-/**
- * \brief Set font size
- **/
-void ass_font_set_size(ASS_Font *font, double size)
-{
-    int i;
-    if (font->size != size) {
-        font->size = size;
-        for (i = 0; i < font->n_faces; ++i)
-            ass_face_set_size(font->faces[i], size);
-    }
-}
-
-/**
- * \brief Get maximal font ascender and descender.
- * \param ch character code
- * The values are extracted from the font face that provides glyphs for the given character
- **/
-void ass_font_get_asc_desc(ASS_Font *font, uint32_t ch, int *asc,
-                           int *desc)
-{
-    int i;
-    for (i = 0; i < font->n_faces; ++i) {
-        FT_Face face = font->faces[i];
-        TT_OS2 *os2 = FT_Get_Sfnt_Table(face, ft_sfnt_os2);
-        if (FT_Get_Char_Index(face, ch)) {
-            int y_scale = face->size->metrics.y_scale;
-            if (os2) {
-                *asc = FT_MulFix(os2->usWinAscent, y_scale);
-                *desc = FT_MulFix(os2->usWinDescent, y_scale);
-            } else {
-                *asc = FT_MulFix(face->ascender, y_scale);
-                *desc = FT_MulFix(-face->descender, y_scale);
-            }
-            return;
-        }
-    }
-
-    *asc = *desc = 0;
-}
-
-/*
- * Strike a glyph with a horizontal line; it's possible to underline it
- * and/or strike through it.  For the line's position and size, truetype
- * tables are consulted.  Obviously this relies on the data in the tables
- * being accurate.
- *
- */
-static int ass_strike_outline_glyph(FT_Face face, ASS_Font *font,
-                                    FT_Glyph glyph, int under, int through)
-{
-    TT_OS2 *os2 = FT_Get_Sfnt_Table(face, ft_sfnt_os2);
-    TT_Postscript *ps = FT_Get_Sfnt_Table(face, ft_sfnt_post);
-    FT_Outline *ol = &((FT_OutlineGlyph) glyph)->outline;
-    FT_Vector points[4];
-    int bear, advance, y_scale, i, dir;
-
-    if (!under && !through)
-        return 0;
-
-    // Grow outline
-    i = (under ? 4 : 0) + (through ? 4 : 0);
-    ol->points = (FT_Vector *) realloc(ol->points, sizeof(FT_Vector) *
-                         (ol->n_points + i));
-    ol->tags = (char *) realloc(ol->tags, ol->n_points + i);
-    i = !!under + !!through;
-    ol->contours = (short *) realloc(ol->contours, sizeof(short) *
-                           (ol->n_contours + i));
-
-    // If the bearing is negative, the glyph starts left of the current
-    // pen position
-    bear = FFMIN(face->glyph->metrics.horiBearingX, 0);
-    // We're adding half a pixel to avoid small gaps
-    advance = d16_to_d6(glyph->advance.x) + 32;
-    y_scale = face->size->metrics.y_scale;
-
-    // Reverse drawing direction for non-truetype fonts
-    dir = FT_Outline_Get_Orientation(ol);
-
-    // Add points to the outline
-    if (under && ps) {
-        int pos, size;
-        pos = FT_MulFix(ps->underlinePosition, y_scale * font->scale_y);
-        size = FT_MulFix(ps->underlineThickness,
-                         y_scale * font->scale_y / 2);
-
-        if (pos > 0 || size <= 0)
-            return 1;
-
-        points[0].x = bear;
-        points[0].y = pos + size;
-        points[1].x = advance;
-        points[1].y = pos + size;
-        points[2].x = advance;
-        points[2].y = pos - size;
-        points[3].x = bear;
-        points[3].y = pos - size;
-
-        if (dir == FT_ORIENTATION_TRUETYPE) {
-            for (i = 0; i < 4; i++) {
-                ol->points[ol->n_points] = points[i];
-                ol->tags[ol->n_points++] = 1;
-            }
-        } else {
-            for (i = 3; i >= 0; i--) {
-                ol->points[ol->n_points] = points[i];
-                ol->tags[ol->n_points++] = 1;
-            }
-        }
-
-        ol->contours[ol->n_contours++] = ol->n_points - 1;
-    }
-
-    if (through && os2) {
-        int pos, size;
-        pos = FT_MulFix(os2->yStrikeoutPosition, y_scale * font->scale_y);
-        size = FT_MulFix(os2->yStrikeoutSize, y_scale * font->scale_y / 2);
-
-        if (pos < 0 || size <= 0)
-            return 1;
-
-        points[0].x = bear;
-        points[0].y = pos + size;
-        points[1].x = advance;
-        points[1].y = pos + size;
-        points[2].x = advance;
-        points[2].y = pos - size;
-        points[3].x = bear;
-        points[3].y = pos - size;
-
-        if (dir == FT_ORIENTATION_TRUETYPE) {
-            for (i = 0; i < 4; i++) {
-                ol->points[ol->n_points] = points[i];
-                ol->tags[ol->n_points++] = 1;
-            }
-        } else {
-            for (i = 3; i >= 0; i--) {
-                ol->points[ol->n_points] = points[i];
-                ol->tags[ol->n_points++] = 1;
-            }
-        }
-
-        ol->contours[ol->n_contours++] = ol->n_points - 1;
-    }
-
-    return 0;
-}
-
-void outline_copy(FT_Library lib, FT_Outline *source, FT_Outline **dest)
-{
-    if (source == NULL) {
-        *dest = NULL;
-        return;
-    }
-    *dest = calloc(1, sizeof(**dest));
-
-    FT_Outline_New(lib, source->n_points, source->n_contours, *dest);
-    FT_Outline_Copy(source, *dest);
-}
-
-void outline_free(FT_Library lib, FT_Outline *outline)
-{
-    if (outline)
-        FT_Outline_Done(lib, outline);
-    free(outline);
-}
-
-/**
- * Slightly embold a glyph without touching its metrics
- */
-static void ass_glyph_embolden(FT_GlyphSlot slot)
-{
-    int str;
-
-    if (slot->format != FT_GLYPH_FORMAT_OUTLINE)
-        return;
-
-    str = FT_MulFix(slot->face->units_per_EM,
-                    slot->face->size->metrics.y_scale) / 64;
-
-    FT_Outline_Embolden(&slot->outline, str);
-}
-
-/**
- * \brief Get glyph and face index
- * Finds a face that has the requested codepoint and returns both face
- * and glyph index.
- */
-int ass_font_get_index(void *fcpriv, ASS_Font *font, uint32_t symbol,
-                       int *face_index, int *glyph_index)
-{
-    int index = 0;
-    int i;
-    FT_Face face = 0;
-
-    *glyph_index = 0;
-
-    if (symbol < 0x20) {
-        *face_index = 0;
-        return 0;
-    }
-    // Handle NBSP like a regular space when rendering the glyph
-    if (symbol == 0xa0)
-        symbol = ' ';
-    if (font->n_faces == 0) {
-        *face_index = 0;
-        return 0;
-    }
-
-    // try with the requested face
-    if (*face_index < font->n_faces) {
-        face = font->faces[*face_index];
-        index = FT_Get_Char_Index(face, symbol);
-    }
-
-    // not found in requested face, try all others
-    for (i = 0; i < font->n_faces && index == 0; ++i) {
-        face = font->faces[i];
-        index = FT_Get_Char_Index(face, symbol);
-        if (index)
-            *face_index = i;
-    }
-
-#ifdef CONFIG_FONTCONFIG
-    if (index == 0) {
-        int face_idx;
-        ass_msg(font->library, MSGL_INFO,
-                "Glyph 0x%X not found, selecting one more "
-                "font for (%s, %d, %d)", symbol, font->desc.family,
-                font->desc.bold, font->desc.italic);
-        face_idx = *face_index = add_face(fcpriv, font, symbol);
-        if (face_idx >= 0) {
-            face = font->faces[face_idx];
-            index = FT_Get_Char_Index(face, symbol);
-            if (index == 0 && face->num_charmaps > 0) {
-                int i;
-                ass_msg(font->library, MSGL_WARN,
-                    "Glyph 0x%X not found, broken font? Trying all charmaps", symbol);
-                for (i = 0; i < face->num_charmaps; i++) {
-                    FT_Set_Charmap(face, face->charmaps[i]);
-                    if ((index = FT_Get_Char_Index(face, symbol)) != 0) break;
-                }
-            }
-            if (index == 0) {
-                ass_msg(font->library, MSGL_ERR,
-                        "Glyph 0x%X not found in font for (%s, %d, %d)",
-                        symbol, font->desc.family, font->desc.bold,
-                        font->desc.italic);
-            }
-        }
-    }
-#endif
-    // FIXME: make sure we have a valid face_index. this is a HACK.
-    *face_index  = FFMAX(*face_index, 0);
-    *glyph_index = index;
-
-    return 1;
-}
-
-/**
- * \brief Get a glyph
- * \param ch character code
- **/
-FT_Glyph ass_font_get_glyph(void *fontconfig_priv, ASS_Font *font,
-                            uint32_t ch, int face_index, int index,
-                            ASS_Hinting hinting, int deco)
-{
-    int error;
-    FT_Glyph glyph;
-    FT_Matrix scale;
-    FT_Outline *outl = NULL;
-    FT_Face face = font->faces[face_index];
-    int flags = 0;
-    int vertical = font->desc.vertical;
-
-    flags = FT_LOAD_NO_BITMAP | FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH
-            | FT_LOAD_IGNORE_TRANSFORM;
-    switch (hinting) {
-    case ASS_HINTING_NONE:
-        flags |= FT_LOAD_NO_HINTING;
-        break;
-    case ASS_HINTING_LIGHT:
-        flags |= FT_LOAD_FORCE_AUTOHINT | FT_LOAD_TARGET_LIGHT;
-        break;
-    case ASS_HINTING_NORMAL:
-        flags |= FT_LOAD_FORCE_AUTOHINT;
-        break;
-    case ASS_HINTING_NATIVE:
-        break;
-    }
-
-    error = FT_Load_Glyph(face, index, flags);
-    if (error) {
-        ass_msg(font->library, MSGL_WARN, "Error loading glyph, index %d",
-                index);
-        return 0;
-    }
-    if (!(face->style_flags & FT_STYLE_FLAG_ITALIC) &&
-        (font->desc.italic > 55)) {
-        FT_GlyphSlot_Oblique(face->glyph);
-    }
-
-    if (!(face->style_flags & FT_STYLE_FLAG_BOLD) &&
-        (font->desc.bold > 80)) {
-        ass_glyph_embolden(face->glyph);
-    }
-    error = FT_Get_Glyph(face->glyph, &glyph);
-    if (error) {
-        ass_msg(font->library, MSGL_WARN, "Error loading glyph, index %d",
-                index);
-        return 0;
-    }
-
-    // Rotate glyph, if needed
-    if (vertical && ch >= VERTICAL_LOWER_BOUND) {
-        FT_Matrix m = { 0, double_to_d16(-1.0), double_to_d16(1.0), 0 };
-        TT_OS2 *os2 = (TT_OS2*) FT_Get_Sfnt_Table(face, ft_sfnt_os2);
-        int desc = 0;
-
-        if (os2)
-            desc = FT_MulFix(os2->sTypoDescender, face->size->metrics.y_scale);
-
-        FT_Outline_Translate(&((FT_OutlineGlyph) glyph)->outline, 0, -desc);
-        FT_Outline_Transform(&((FT_OutlineGlyph) glyph)->outline, &m);
-        FT_Outline_Translate(&((FT_OutlineGlyph) glyph)->outline,
-                             face->glyph->metrics.vertAdvance, desc);
-        glyph->advance.x = face->glyph->linearVertAdvance;
-    }
-
-    // Apply scaling and shift
-    scale.xx = double_to_d16(font->scale_x);
-    scale.xy = 0;
-    scale.yx = 0;
-    scale.yy  = double_to_d16(font->scale_y);
-
-    outl = &((FT_OutlineGlyph) glyph)->outline;
-    FT_Outline_Transform(outl, &scale);
-    FT_Outline_Translate(outl, font->v.x, font->v.y);
-    glyph->advance.x *= font->scale_x;
-
-    ass_strike_outline_glyph(face, font, glyph, deco & DECO_UNDERLINE,
-                             deco & DECO_STRIKETHROUGH);
-
-    return glyph;
-}
-
-/**
- * \brief Get kerning for the pair of glyphs.
- **/
-FT_Vector ass_font_get_kerning(ASS_Font *font, uint32_t c1, uint32_t c2)
-{
-    FT_Vector v = { 0, 0 };
-    int i;
-
-    if (font->desc.vertical)
-        return v;
-
-    for (i = 0; i < font->n_faces; ++i) {
-        FT_Face face = font->faces[i];
-        int i1 = FT_Get_Char_Index(face, c1);
-        int i2 = FT_Get_Char_Index(face, c2);
-        if (i1 && i2) {
-            if (FT_HAS_KERNING(face))
-                FT_Get_Kerning(face, i1, i2, FT_KERNING_DEFAULT, &v);
-            return v;
-        }
-        if (i1 || i2)           // these glyphs are from different font faces, no kerning information
-            return v;
-    }
-    return v;
-}
-
-/**
- * \brief Deallocate ASS_Font
- **/
-void ass_font_free(ASS_Font *font)
-{
-    int i;
-    for (i = 0; i < font->n_faces; ++i)
-        if (font->faces[i])
-            FT_Done_Face(font->faces[i]);
-    if (font->shaper_priv)
-        ass_shaper_font_data_free(font->shaper_priv);
-    free(font->desc.family);
-    free(font);
-}
-
-/**
- * \brief Calculate the cbox of a series of points
- */
-static void
-get_contour_cbox(FT_BBox *box, FT_Vector *points, int start, int end)
-{
-    int i;
-    box->xMin = box->yMin = INT_MAX;
-    box->xMax = box->yMax = INT_MIN;
-
-    for (i = start; i <= end; i++) {
-        box->xMin = (points[i].x < box->xMin) ? points[i].x : box->xMin;
-        box->xMax = (points[i].x > box->xMax) ? points[i].x : box->xMax;
-        box->yMin = (points[i].y < box->yMin) ? points[i].y : box->yMin;
-        box->yMax = (points[i].y > box->yMax) ? points[i].y : box->yMax;
-    }
-}
-
-/**
- * \brief Determine winding direction of a contour
- * \return direction; 0 = clockwise
- */
-static int get_contour_direction(FT_Vector *points, int start, int end)
-{
-    int i;
-    long long sum = 0;
-    int x = points[start].x;
-    int y = points[start].y;
-    for (i = start + 1; i <= end; i++) {
-        sum += x * (points[i].y - y) - y * (points[i].x - x);
-        x = points[i].x;
-        y = points[i].y;
-    }
-    sum += x * (points[start].y - y) - y * (points[start].x - x);
-    return sum > 0;
-}
-
-/**
- * \brief Apply fixups to please the FreeType stroker and improve the
- * rendering result, especially in case the outline has some anomalies.
- * At the moment, the following fixes are done:
- *
- * 1. Reverse contours that have "inside" winding direction but are not
- *    contained in any other contours' cbox.
- * 2. Remove "inside" contours depending on border size, so that large
- *    borders do not reverse the winding direction, which leads to "holes"
- *    inside the border. The inside will be filled by the border of the
- *    outside contour anyway in this case.
- *
- * \param outline FreeType outline, modified in-place
- * \param border_x border size, x direction, d6 format
- * \param border_x border size, y direction, d6 format
- */
-void fix_freetype_stroker(FT_Outline *outline, int border_x, int border_y)
-{
-    int nc = outline->n_contours;
-    int begin, stop;
-    char modified = 0;
-    char *valid_cont = malloc(nc);
-    int start = 0;
-    int end = -1;
-    FT_BBox *boxes = malloc(nc * sizeof(FT_BBox));
-    int i, j;
-    int inside_direction;
-
-    inside_direction = FT_Outline_Get_Orientation(outline) ==
-        FT_ORIENTATION_TRUETYPE;
-
-    // create a list of cboxes of the contours
-    for (i = 0; i < nc; i++) {
-        start = end + 1;
-        end = outline->contours[i];
-        get_contour_cbox(&boxes[i], outline->points, start, end);
-    }
-
-    // for each contour, check direction and whether it's "outside"
-    // or contained in another contour
-    end = -1;
-    for (i = 0; i < nc; i++) {
-        int dir;
-        start = end + 1;
-        end = outline->contours[i];
-        dir = get_contour_direction(outline->points, start, end);
-        valid_cont[i] = 1;
-        if (dir == inside_direction) {
-            for (j = 0; j < nc; j++) {
-                if (i == j)
-                    continue;
-                if (boxes[i].xMin >= boxes[j].xMin &&
-                    boxes[i].xMax <= boxes[j].xMax &&
-                    boxes[i].yMin >= boxes[j].yMin &&
-                    boxes[i].yMax <= boxes[j].yMax)
-                    goto check_inside;
-            }
-            /* "inside" contour but we can't find anything it could be
-             * inside of - assume the font is buggy and it should be
-             * an "outside" contour, and reverse it */
-            for (j = 0; j < (end + 1 - start) / 2; j++) {
-                FT_Vector temp = outline->points[start + j];
-                char temp2 = outline->tags[start + j];
-                outline->points[start + j] = outline->points[end - j];
-                outline->points[end - j] = temp;
-                outline->tags[start + j] = outline->tags[end - j];
-                outline->tags[end - j] = temp2;
-            }
-            dir ^= 1;
-        }
-        check_inside:
-        if (dir == inside_direction) {
-            FT_BBox box;
-            int width, height;
-            get_contour_cbox(&box, outline->points, start, end);
-            width = box.xMax - box.xMin;
-            height = box.yMax - box.yMin;
-            if (width < border_x * 2 || height < border_y * 2) {
-                valid_cont[i] = 0;
-                modified = 1;
-            }
-        }
-    }
-
-    // if we need to modify the outline, rewrite it and skip
-    // the contours that we determined should be removed.
-    if (modified) {
-        int p = 0, c = 0;
-        for (i = 0; i < nc; i++) {
-            if (!valid_cont[i])
-                continue;
-            begin = (i == 0) ? 0 : outline->contours[i - 1] + 1;
-            stop = outline->contours[i];
-            for (j = begin; j <= stop; j++) {
-                outline->points[p].x = outline->points[j].x;
-                outline->points[p].y = outline->points[j].y;
-                outline->tags[p] = outline->tags[j];
-                p++;
-            }
-            outline->contours[c] = p - 1;
-            c++;
-        }
-        outline->n_points = p;
-        outline->n_contours = c;
-    }
-
-    free(boxes);
-    free(valid_cont);
-}
-
diff --git a/lib/libass/libass/ass_font.h b/lib/libass/libass/ass_font.h
deleted file mode 100644
index 481a63015f..0000000000
--- a/lib/libass/libass/ass_font.h
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
- *
- * This file is part of libass.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#ifndef LIBASS_FONT_H
-#define LIBASS_FONT_H
-
-#include <stdint.h>
-#include <ft2build.h>
-#include FT_GLYPH_H
-#include FT_OUTLINE_H
-
-#include "ass.h"
-#include "ass_types.h"
-
-#define VERTICAL_LOWER_BOUND 0x02f1
-
-#define ASS_FONT_MAX_FACES 10
-#define DECO_UNDERLINE 1
-#define DECO_STRIKETHROUGH 2
-
-typedef struct ass_shaper_font_data ASS_ShaperFontData;
-
-typedef struct {
-    char *family;
-    unsigned bold;
-    unsigned italic;
-    int treat_family_as_pattern;
-    int vertical;               // @font vertical layout
-} ASS_FontDesc;
-
-typedef struct {
-    ASS_FontDesc desc;
-    ASS_Library *library;
-    FT_Library ftlibrary;
-    FT_Face faces[ASS_FONT_MAX_FACES];
-    ASS_ShaperFontData *shaper_priv;
-    int n_faces;
-    double scale_x, scale_y;    // current transform
-    FT_Vector v;                // current shift
-    double size;
-} ASS_Font;
-
-#include "ass_cache.h"
-
-ASS_Font *ass_font_new(Cache *font_cache, ASS_Library *library,
-                       FT_Library ftlibrary, void *fc_priv,
-                       ASS_FontDesc *desc);
-void ass_font_set_transform(ASS_Font *font, double scale_x,
-                            double scale_y, FT_Vector *v);
-void ass_face_set_size(FT_Face face, double size);
-void ass_font_set_size(ASS_Font *font, double size);
-void ass_font_get_asc_desc(ASS_Font *font, uint32_t ch, int *asc,
-                           int *desc);
-int ass_font_get_index(void *fcpriv, ASS_Font *font, uint32_t symbol,
-                       int *face_index, int *glyph_index);
-FT_Glyph ass_font_get_glyph(void *fontconfig_priv, ASS_Font *font,
-                            uint32_t ch, int face_index, int index,
-                            ASS_Hinting hinting, int deco);
-FT_Vector ass_font_get_kerning(ASS_Font *font, uint32_t c1, uint32_t c2);
-void ass_font_free(ASS_Font *font);
-void fix_freetype_stroker(FT_Outline *outline, int border_x, int border_y);
-void outline_copy(FT_Library lib, FT_Outline *source, FT_Outline **dest);
-void outline_free(FT_Library lib, FT_Outline *outline);
-
-#endif                          /* LIBASS_FONT_H */
diff --git a/lib/libass/libass/ass_fontconfig.c b/lib/libass/libass/ass_fontconfig.c
deleted file mode 100644
index 76ca045940..0000000000
--- a/lib/libass/libass/ass_fontconfig.c
+++ /dev/null
@@ -1,534 +0,0 @@
-/*
- * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
- *
- * This file is part of libass.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include "config.h"
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <assert.h>
-#include <string.h>
-#ifndef _WIN32
-#include <strings.h>
-#endif
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <inttypes.h>
-#include <ft2build.h>
-#include FT_FREETYPE_H
-
-#include "ass_utils.h"
-#include "ass.h"
-#include "ass_library.h"
-#include "ass_fontconfig.h"
-
-#ifdef CONFIG_FONTCONFIG
-#include <fontconfig/fontconfig.h>
-#include <fontconfig/fcfreetype.h>
-#endif
-
-struct fc_instance {
-#ifdef CONFIG_FONTCONFIG
-    FcConfig *config;
-#endif
-    char *family_default;
-    char *path_default;
-    int index_default;
-};
-
-#ifdef CONFIG_FONTCONFIG
-
-/**
- * \brief Case-insensitive match ASS/SSA font family against full name. (also
- * known as "name for humans")
- *
- * \param lib library instance
- * \param priv fontconfig instance
- * \param family font fullname
- * \param bold weight attribute
- * \param italic italic attribute
- * \return font set
- */
-static FcFontSet *
-match_fullname(ASS_Library *lib, FCInstance *priv, const char *family,
-               unsigned bold, unsigned italic)
-{
-    FcFontSet *sets[2];
-    FcFontSet *result = FcFontSetCreate();
-    int nsets = 0;
-    int i, fi;
-
-    if ((sets[nsets] = FcConfigGetFonts(priv->config, FcSetSystem)))
-        nsets++;
-    if ((sets[nsets] = FcConfigGetFonts(priv->config, FcSetApplication)))
-        nsets++;
-
-    // Run over font sets and patterns and try to match against full name
-    for (i = 0; i < nsets; i++) {
-        FcFontSet *set = sets[i];
-        for (fi = 0; fi < set->nfont; fi++) {
-            FcPattern *pat = set->fonts[fi];
-            char *fullname;
-            int pi = 0, at;
-            FcBool ol;
-            while (FcPatternGetString(pat, FC_FULLNAME, pi++,
-                   (FcChar8 **) &fullname) == FcResultMatch) {
-                if (FcPatternGetBool(pat, FC_OUTLINE, 0, &ol) != FcResultMatch
-                    || ol != FcTrue)
-                    continue;
-                if (FcPatternGetInteger(pat, FC_SLANT, 0, &at) != FcResultMatch
-                    || at < italic)
-                    continue;
-                if (FcPatternGetInteger(pat, FC_WEIGHT, 0, &at) != FcResultMatch
-                    || at < bold)
-                    continue;
-                if (strcasecmp(fullname, family) == 0) {
-                    FcFontSetAdd(result, FcPatternDuplicate(pat));
-                    break;
-                }
-            }
-        }
-    }
-
-    return result;
-}
-
-/**
- * \brief Low-level font selection.
- * \param priv private data
- * \param family font family
- * \param treat_family_as_pattern treat family as fontconfig pattern
- * \param bold font weight value
- * \param italic font slant value
- * \param index out: font index inside a file
- * \param code: the character that should be present in the font, can be 0
- * \return font file path
-*/
-static char *select_font(ASS_Library *library, FCInstance *priv,
-                          const char *family, int treat_family_as_pattern,
-                          unsigned bold, unsigned italic, int *index,
-                          uint32_t code)
-{
-    FcBool rc;
-    FcResult result;
-    FcPattern *pat = NULL, *rpat = NULL;
-    int r_index, r_slant, r_weight;
-    FcChar8 *r_family, *r_style, *r_file, *r_fullname;
-    FcBool r_outline, r_embolden;
-    FcCharSet *r_charset;
-    FcFontSet *ffullname = NULL, *fsorted = NULL, *fset = NULL;
-    int curf;
-    char *retval = NULL;
-    int family_cnt = 0;
-
-    *index = 0;
-
-    if (treat_family_as_pattern)
-        pat = FcNameParse((const FcChar8 *) family);
-    else
-        pat = FcPatternCreate();
-
-    if (!pat)
-        goto error;
-
-    if (!treat_family_as_pattern) {
-        FcPatternAddString(pat, FC_FAMILY, (const FcChar8 *) family);
-
-        // In SSA/ASS fonts are sometimes referenced by their "full name",
-        // which is usually a concatenation of family name and font
-        // style (ex. Ottawa Bold). Full name is available from
-        // FontConfig pattern element FC_FULLNAME, but it is never
-        // used for font matching.
-        // Therefore, I'm removing words from the end of the name one
-        // by one, and adding shortened names to the pattern. It seems
-        // that the first value (full name in this case) has
-        // precedence in matching.
-        // An alternative approach could be to reimplement FcFontSort
-        // using FC_FULLNAME instead of FC_FAMILY.
-        family_cnt = 1;
-        {
-            char *s = strdup(family);
-            char *p = s + strlen(s);
-            while (--p > s)
-                if (*p == ' ' || *p == '-') {
-                    *p = '\0';
-                    FcPatternAddString(pat, FC_FAMILY, (const FcChar8 *) s);
-                    ++family_cnt;
-                }
-            free(s);
-        }
-    }
-    FcPatternAddBool(pat, FC_OUTLINE, FcTrue);
-    FcPatternAddInteger(pat, FC_SLANT, italic);
-    FcPatternAddInteger(pat, FC_WEIGHT, bold);
-
-    FcDefaultSubstitute(pat);
-
-    rc = FcConfigSubstitute(priv->config, pat, FcMatchPattern);
-    if (!rc)
-        goto error;
-
-    fsorted = FcFontSort(priv->config, pat, FcTrue, NULL, &result);
-    ffullname = match_fullname(library, priv, family, bold, italic);
-    if (!fsorted || !ffullname)
-        goto error;
-
-    fset = FcFontSetCreate();
-    for (curf = 0; curf < ffullname->nfont; ++curf) {
-        FcPattern *curp = ffullname->fonts[curf];
-        FcPatternReference(curp);
-        FcFontSetAdd(fset, curp);
-    }
-    for (curf = 0; curf < fsorted->nfont; ++curf) {
-        FcPattern *curp = fsorted->fonts[curf];
-        FcPatternReference(curp);
-        FcFontSetAdd(fset, curp);
-    }
-
-    for (curf = 0; curf < fset->nfont; ++curf) {
-        FcPattern *curp = fset->fonts[curf];
-
-        result = FcPatternGetBool(curp, FC_OUTLINE, 0, &r_outline);
-        if (result != FcResultMatch)
-            continue;
-        if (r_outline != FcTrue)
-            continue;
-        if (!code)
-            break;
-        result = FcPatternGetCharSet(curp, FC_CHARSET, 0, &r_charset);
-        if (result != FcResultMatch)
-            continue;
-        if (FcCharSetHasChar(r_charset, code))
-            break;
-    }
-
-    if (curf >= fset->nfont)
-        goto error;
-
-    if (!treat_family_as_pattern) {
-        // Remove all extra family names from original pattern.
-        // After this, FcFontRenderPrepare will select the most relevant family
-        // name in case there are more than one of them.
-        for (; family_cnt > 1; --family_cnt)
-            FcPatternRemove(pat, FC_FAMILY, family_cnt - 1);
-    }
-
-    rpat = FcFontRenderPrepare(priv->config, pat, fset->fonts[curf]);
-    if (!rpat)
-        goto error;
-
-    result = FcPatternGetInteger(rpat, FC_INDEX, 0, &r_index);
-    if (result != FcResultMatch)
-        goto error;
-    *index = r_index;
-
-    result = FcPatternGetString(rpat, FC_FILE, 0, &r_file);
-    if (result != FcResultMatch)
-        goto error;
-    retval = strdup((const char *) r_file);
-
-    result = FcPatternGetString(rpat, FC_FAMILY, 0, &r_family);
-    if (result != FcResultMatch)
-        r_family = NULL;
-
-    result = FcPatternGetString(rpat, FC_FULLNAME, 0, &r_fullname);
-    if (result != FcResultMatch)
-        r_fullname = NULL;
-
-    if (!treat_family_as_pattern &&
-        !(r_family && strcasecmp((const char *) r_family, family) == 0) &&
-        !(r_fullname && strcasecmp((const char *) r_fullname, family) == 0))
-        ass_msg(library, MSGL_WARN,
-               "fontconfig: Selected font is not the requested one: "
-               "'%s' != '%s'",
-               (const char *) (r_fullname ? r_fullname : r_family), family);
-
-    result = FcPatternGetString(rpat, FC_STYLE, 0, &r_style);
-    if (result != FcResultMatch)
-        r_style = NULL;
-
-    result = FcPatternGetInteger(rpat, FC_SLANT, 0, &r_slant);
-    if (result != FcResultMatch)
-        r_slant = 0;
-
-    result = FcPatternGetInteger(rpat, FC_WEIGHT, 0, &r_weight);
-    if (result != FcResultMatch)
-        r_weight = 0;
-
-    result = FcPatternGetBool(rpat, FC_EMBOLDEN, 0, &r_embolden);
-    if (result != FcResultMatch)
-        r_embolden = 0;
-
-    ass_msg(library, MSGL_V,
-           "Font info: family '%s', style '%s', fullname '%s',"
-           " slant %d, weight %d%s", (const char *) r_family,
-           (const char *) r_style, (const char *) r_fullname, r_slant,
-           r_weight, r_embolden ? ", embolden" : "");
-
-  error:
-    if (pat)
-        FcPatternDestroy(pat);
-    if (rpat)
-        FcPatternDestroy(rpat);
-    if (fsorted)
-        FcFontSetDestroy(fsorted);
-    if (ffullname)
-        FcFontSetDestroy(ffullname);
-    if (fset)
-        FcFontSetDestroy(fset);
-    return retval;
-}
-
-/**
- * \brief Find a font. Use default family or path if necessary.
- * \param priv_ private data
- * \param family font family
- * \param treat_family_as_pattern treat family as fontconfig pattern
- * \param bold font weight value
- * \param italic font slant value
- * \param index out: font index inside a file
- * \param code: the character that should be present in the font, can be 0
- * \return font file path
-*/
-char *fontconfig_select(ASS_Library *library, FCInstance *priv,
-                        const char *family, int treat_family_as_pattern,
-                        unsigned bold, unsigned italic, int *index,
-                        uint32_t code)
-{
-    char *res = 0;
-    if (!priv->config) {
-        *index = priv->index_default;
-        res = priv->path_default ? strdup(priv->path_default) : 0;
-        return res;
-    }
-    if (family && *family)
-        res =
-            select_font(library, priv, family, treat_family_as_pattern,
-                         bold, italic, index, code);
-    if (!res && priv->family_default) {
-        res =
-            select_font(library, priv, priv->family_default, 0, bold,
-                         italic, index, code);
-        if (res)
-            ass_msg(library, MSGL_WARN, "fontconfig_select: Using default "
-                    "font family: (%s, %d, %d) -> %s, %d",
-                    family, bold, italic, res, *index);
-    }
-    if (!res && priv->path_default) {
-        res = strdup(priv->path_default);
-        *index = priv->index_default;
-        ass_msg(library, MSGL_WARN, "fontconfig_select: Using default font: "
-                "(%s, %d, %d) -> %s, %d", family, bold, italic,
-                res, *index);
-    }
-    if (!res) {
-        res = select_font(library, priv, "Arial", 0, bold, italic,
-                           index, code);
-        if (res)
-            ass_msg(library, MSGL_WARN, "fontconfig_select: Using 'Arial' "
-                    "font family: (%s, %d, %d) -> %s, %d", family, bold,
-                    italic, res, *index);
-    }
-    if (res)
-        ass_msg(library, MSGL_V,
-                "fontconfig_select: (%s, %d, %d) -> %s, %d", family, bold,
-                italic, res, *index);
-    return res;
-}
-
-/**
- * \brief Process memory font.
- * \param priv private data
- * \param library library object
- * \param ftlibrary freetype library object
- * \param idx index of the processed font in library->fontdata
- *
- * Builds a font pattern in memory via FT_New_Memory_Face/FcFreeTypeQueryFace.
-*/
-static void process_fontdata(FCInstance *priv, ASS_Library *library,
-                             FT_Library ftlibrary, int idx)
-{
-    int rc;
-    const char *name = library->fontdata[idx].name;
-    const char *data = library->fontdata[idx].data;
-    int data_size = library->fontdata[idx].size;
-
-    FT_Face face;
-    FcPattern *pattern;
-    FcFontSet *fset;
-    FcBool res;
-    int face_index, num_faces = 1;
-
-    for (face_index = 0; face_index < num_faces; ++face_index) {
-        rc = FT_New_Memory_Face(ftlibrary, (unsigned char *) data,
-                                data_size, face_index, &face);
-        if (rc) {
-            ass_msg(library, MSGL_WARN, "Error opening memory font: %s",
-                   name);
-            return;
-        }
-        num_faces = face->num_faces;
-
-        pattern =
-            FcFreeTypeQueryFace(face, (unsigned char *) name, face_index,
-                                FcConfigGetBlanks(priv->config));
-        if (!pattern) {
-            ass_msg(library, MSGL_WARN, "%s failed", "FcFreeTypeQueryFace");
-            FT_Done_Face(face);
-            return;
-        }
-
-        fset = FcConfigGetFonts(priv->config, FcSetSystem);     // somehow it failes when asked for FcSetApplication
-        if (!fset) {
-            ass_msg(library, MSGL_WARN, "%s failed", "FcConfigGetFonts");
-            FT_Done_Face(face);
-            return;
-        }
-
-        res = FcFontSetAdd(fset, pattern);
-        if (!res) {
-            ass_msg(library, MSGL_WARN, "%s failed", "FcFontSetAdd");
-            FT_Done_Face(face);
-            return;
-        }
-
-        FT_Done_Face(face);
-    }
-}
-
-/**
- * \brief Init fontconfig.
- * \param library libass library object
- * \param ftlibrary freetype library object
- * \param family default font family
- * \param path default font path
- * \param fc whether fontconfig should be used
- * \param config path to a fontconfig configuration file, or NULL
- * \param update whether the fontconfig cache should be built/updated
- * \return pointer to fontconfig private data
-*/
-FCInstance *fontconfig_init(ASS_Library *library,
-                            FT_Library ftlibrary, const char *family,
-                            const char *path, int fc, const char *config,
-                            int update)
-{
-    int rc;
-    FCInstance *priv = calloc(1, sizeof(FCInstance));
-    const char *dir = library->fonts_dir;
-    int i;
-
-    if (!fc) {
-        ass_msg(library, MSGL_WARN,
-               "Fontconfig disabled, only default font will be used.");
-        goto exit;
-    }
-
-    priv->config = FcConfigCreate();
-    rc = FcConfigParseAndLoad(priv->config, (unsigned char *) config, FcTrue);
-    if (!rc) {
-        ass_msg(library, MSGL_WARN, "No usable fontconfig configuration "
-                "file found, using fallback.");
-        FcConfigDestroy(priv->config);
-        priv->config = FcInitLoadConfig();
-        rc++;
-    }
-    if (rc && update) {
-        FcConfigBuildFonts(priv->config);
-    }
-
-    if (!rc || !priv->config) {
-        ass_msg(library, MSGL_FATAL,
-                "No valid fontconfig configuration found!");
-        FcConfigDestroy(priv->config);
-        goto exit;
-    }
-
-    for (i = 0; i < library->num_fontdata; ++i)
-        process_fontdata(priv, library, ftlibrary, i);
-
-    if (dir) {
-        ass_msg(library, MSGL_V, "Updating font cache");
-
-        rc = FcConfigAppFontAddDir(priv->config, (const FcChar8 *) dir);
-        if (!rc) {
-            ass_msg(library, MSGL_WARN, "%s failed", "FcConfigAppFontAddDir");
-        }
-    }
-
-    priv->family_default = family ? strdup(family) : NULL;
-exit:
-    priv->path_default = path ? strdup(path) : NULL;
-    priv->index_default = 0;
-
-    return priv;
-}
-
-int fontconfig_update(FCInstance *priv)
-{
-        return FcConfigBuildFonts(priv->config);
-}
-
-#else                           /* CONFIG_FONTCONFIG */
-
-char *fontconfig_select(ASS_Library *library, FCInstance *priv,
-                        const char *family, int treat_family_as_pattern,
-                        unsigned bold, unsigned italic, int *index,
-                        uint32_t code)
-{
-    *index = priv->index_default;
-    char* res = priv->path_default ? strdup(priv->path_default) : 0;
-    return res;
-}
-
-FCInstance *fontconfig_init(ASS_Library *library,
-                            FT_Library ftlibrary, const char *family,
-                            const char *path, int fc, const char *config,
-                            int update)
-{
-    FCInstance *priv;
-
-    ass_msg(library, MSGL_WARN,
-        "Fontconfig disabled, only default font will be used.");
-
-    priv = calloc(1, sizeof(FCInstance));
-
-    priv->path_default = path ? strdup(path) : 0;
-    priv->index_default = 0;
-    return priv;
-}
-
-int fontconfig_update(FCInstance *priv)
-{
-    // Do nothing
-    return 1;
-}
-
-#endif
-
-void fontconfig_done(FCInstance *priv)
-{
-
-    if (priv) {
-#ifdef CONFIG_FONTCONFIG
-        if (priv->config)
-            FcConfigDestroy(priv->config);
-#endif
-        free(priv->path_default);
-        free(priv->family_default);
-    }
-    free(priv);
-}
diff --git a/lib/libass/libass/ass_fontconfig.h b/lib/libass/libass/ass_fontconfig.h
deleted file mode 100644
index 396fb72d0d..0000000000
--- a/lib/libass/libass/ass_fontconfig.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
- *
- * This file is part of libass.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#ifndef LIBASS_FONTCONFIG_H
-#define LIBASS_FONTCONFIG_H
-
-#include <stdint.h>
-#include "ass_types.h"
-#include "ass.h"
-#include <ft2build.h>
-#include FT_FREETYPE_H
-
-#ifdef CONFIG_FONTCONFIG
-#include <fontconfig/fontconfig.h>
-#endif
-
-typedef struct fc_instance FCInstance;
-
-FCInstance *fontconfig_init(ASS_Library *library,
-                            FT_Library ftlibrary, const char *family,
-                            const char *path, int fc, const char *config,
-                            int update);
-char *fontconfig_select(ASS_Library *library, FCInstance *priv,
-                        const char *family, int treat_family_as_pattern,
-                        unsigned bold, unsigned italic, int *index,
-                        uint32_t code);
-void fontconfig_done(FCInstance *priv);
-int fontconfig_update(FCInstance *priv);
-
-#endif                          /* LIBASS_FONTCONFIG_H */
diff --git a/lib/libass/libass/ass_library.c b/lib/libass/libass/ass_library.c
deleted file mode 100644
index b33ca551b0..0000000000
--- a/lib/libass/libass/ass_library.c
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
- *
- * This file is part of libass.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include "config.h"
-
-#include <inttypes.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdarg.h>
-
-#include "ass.h"
-#include "ass_library.h"
-#include "ass_utils.h"
-
-static void ass_msg_handler(int level, const char *fmt, va_list va, void *data)
-{
-    if (level > MSGL_INFO)
-        return;
-    fprintf(stderr, "[ass] ");
-    vfprintf(stderr, fmt, va);
-    fprintf(stderr, "\n");
-}
-
-ASS_Library *ass_library_init(void)
-{
-    ASS_Library* lib = calloc(1, sizeof(*lib));
-    lib->msg_callback = ass_msg_handler;
-
-    return lib;
-}
-
-void ass_library_done(ASS_Library *priv)
-{
-    if (priv) {
-        ass_set_fonts_dir(priv, NULL);
-        ass_set_style_overrides(priv, NULL);
-        ass_clear_fonts(priv);
-        free(priv);
-    }
-}
-
-void ass_set_fonts_dir(ASS_Library *priv, const char *fonts_dir)
-{
-    free(priv->fonts_dir);
-
-    priv->fonts_dir = fonts_dir ? strdup(fonts_dir) : 0;
-}
-
-void ass_set_extract_fonts(ASS_Library *priv, int extract)
-{
-    priv->extract_fonts = !!extract;
-}
-
-void ass_set_style_overrides(ASS_Library *priv, char **list)
-{
-    char **p;
-    char **q;
-    int cnt;
-
-    if (priv->style_overrides) {
-        for (p = priv->style_overrides; *p; ++p)
-            free(*p);
-    }
-    free(priv->style_overrides);
-    priv->style_overrides = NULL;
-
-    if (!list)
-        return;
-
-    for (p = list, cnt = 0; *p; ++p, ++cnt) {
-    }
-
-    priv->style_overrides = malloc((cnt + 1) * sizeof(char *));
-    for (p = list, q = priv->style_overrides; *p; ++p, ++q)
-        *q = strdup(*p);
-    priv->style_overrides[cnt] = NULL;
-}
-
-static void grow_array(void **array, int nelem, size_t elsize)
-{
-    if (!(nelem & 31))
-        *array = realloc(*array, (nelem + 32) * elsize);
-}
-
-void ass_add_font(ASS_Library *priv, char *name, char *data, int size)
-{
-    int idx = priv->num_fontdata;
-    if (!name || !data || !size)
-        return;
-    grow_array((void **) &priv->fontdata, priv->num_fontdata,
-               sizeof(*priv->fontdata));
-
-    priv->fontdata[idx].name = strdup(name);
-
-    priv->fontdata[idx].data = malloc(size);
-    memcpy(priv->fontdata[idx].data, data, size);
-
-    priv->fontdata[idx].size = size;
-
-    priv->num_fontdata++;
-}
-
-void ass_clear_fonts(ASS_Library *priv)
-{
-    int i;
-    for (i = 0; i < priv->num_fontdata; ++i) {
-        free(priv->fontdata[i].name);
-        free(priv->fontdata[i].data);
-    }
-    free(priv->fontdata);
-    priv->fontdata = NULL;
-    priv->num_fontdata = 0;
-}
-
-/*
- * Register a message callback function with libass.  Without setting one,
- * a default handler is used which prints everything with MSGL_INFO or
- * higher to the standard output.
- *
- * \param msg_cb the callback function
- * \param data additional data that will be passed to the callback
- */
-void ass_set_message_cb(ASS_Library *priv,
-                        void (*msg_cb)(int, const char *, va_list, void *),
-                        void *data)
-{
-    if (msg_cb) {
-        priv->msg_callback = msg_cb;
-        priv->msg_callback_data = data;
-    }
-}
diff --git a/lib/libass/libass/ass_library.h b/lib/libass/libass/ass_library.h
deleted file mode 100644
index 8faf15e93f..0000000000
--- a/lib/libass/libass/ass_library.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
- *
- * This file is part of libass.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#ifndef LIBASS_LIBRARY_H
-#define LIBASS_LIBRARY_H
-
-#include <stdarg.h>
-
-typedef struct {
-    char *name;
-    char *data;
-    int size;
-} ASS_Fontdata;
-
-struct ass_library {
-    char *fonts_dir;
-    int extract_fonts;
-    char **style_overrides;
-
-    ASS_Fontdata *fontdata;
-    int num_fontdata;
-    void (*msg_callback)(int, const char *, va_list, void *);
-    void *msg_callback_data;
-};
-
-#endif                          /* LIBASS_LIBRARY_H */
diff --git a/lib/libass/libass/ass_parse.c b/lib/libass/libass/ass_parse.c
deleted file mode 100644
index 92a47b3aeb..0000000000
--- a/lib/libass/libass/ass_parse.c
+++ /dev/null
@@ -1,1039 +0,0 @@
-/*
- * Copyright (C) 2009 Grigori Goronzy <greg@geekmind.org>
- *
- * This file is part of libass.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include "config.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-
-#include "ass_render.h"
-#include "ass_parse.h"
-
-#define MAX_BE 127
-#define NBSP 0xa0   // unicode non-breaking space character
-
-#define skip_to(x) while ((*p != (x)) && (*p != '}') && (*p != 0)) { ++p;}
-#define skip(x) if (*p == (x)) ++p; else { return p; }
-#define skipopt(x) if (*p == (x)) { ++p; }
-
-/**
- * \brief Check if starting part of (*p) matches sample.
- * If true, shift p to the first symbol after the matching part.
- */
-static inline int mystrcmp(char **p, const char *sample)
-{
-    int len = strlen(sample);
-    if (strncmp(*p, sample, len) == 0) {
-        (*p) += len;
-        return 1;
-    } else
-        return 0;
-}
-
-double ensure_font_size(ASS_Renderer *priv, double size)
-{
-    if (size < 1)
-        size = 1;
-    else if (size > priv->height * 2)
-        size = priv->height * 2;
-
-    return size;
-}
-
-static void change_font_size(ASS_Renderer *render_priv, double sz)
-{
-    render_priv->state.font_size = sz;
-}
-
-/**
- * \brief Change current font, using setting from render_priv->state.
- */
-void update_font(ASS_Renderer *render_priv)
-{
-    unsigned val;
-    ASS_FontDesc desc;
-    desc.treat_family_as_pattern = render_priv->state.treat_family_as_pattern;
-
-    if (render_priv->state.family[0] == '@') {
-        desc.vertical = 1;
-        desc.family = strdup(render_priv->state.family + 1);
-    } else {
-        desc.vertical = 0;
-        desc.family = strdup(render_priv->state.family);
-    }
-
-    val = render_priv->state.bold;
-    // 0 = normal, 1 = bold, >1 = exact weight
-    if (val == 1 || val == -1)
-        val = 200;              // bold
-    else if (val <= 0)
-        val = 80;               // normal
-    desc.bold = val;
-
-    val = render_priv->state.italic;
-    if (val == 1 || val == -1)
-        val = 110;              // italic
-    else if (val <= 0)
-        val = 0;                // normal
-    desc.italic = val;
-
-    render_priv->state.font =
-        ass_font_new(render_priv->cache.font_cache, render_priv->library,
-                     render_priv->ftlibrary, render_priv->fontconfig_priv,
-                     &desc);
-    free(desc.family);
-
-    if (render_priv->state.font)
-        change_font_size(render_priv, render_priv->state.font_size);
-}
-
-/**
- * \brief Change border width
- * negative value resets border to style value
- */
-void change_border(ASS_Renderer *render_priv, double border_x,
-                   double border_y)
-{
-    int bord;
-    if (!render_priv->state.font)
-        return;
-
-    if (border_x < 0 && border_y < 0) {
-        if (render_priv->state.style->BorderStyle == 1 ||
-            render_priv->state.style->BorderStyle == 3)
-            border_x = border_y = render_priv->state.style->Outline;
-        else
-            border_x = border_y = 1.;
-    }
-
-    render_priv->state.border_x = border_x;
-    render_priv->state.border_y = border_y;
-
-    bord = 64 * border_x * render_priv->border_scale;
-    if (bord > 0 && border_x == border_y) {
-        if (!render_priv->state.stroker) {
-            int error;
-            error =
-                FT_Stroker_New(render_priv->ftlibrary,
-                               &render_priv->state.stroker);
-            if (error) {
-                ass_msg(render_priv->library, MSGL_V,
-                        "failed to get stroker");
-                render_priv->state.stroker = 0;
-            }
-        }
-        if (render_priv->state.stroker)
-            FT_Stroker_Set(render_priv->state.stroker, bord,
-                           FT_STROKER_LINECAP_ROUND,
-                           FT_STROKER_LINEJOIN_ROUND, 0);
-    } else {
-        FT_Stroker_Done(render_priv->state.stroker);
-        render_priv->state.stroker = 0;
-    }
-}
-
-/**
- * \brief Calculate a weighted average of two colors
- * calculates c1*(1-a) + c2*a, but separately for each component except alpha
- */
-static void change_color(uint32_t *var, uint32_t new, double pwr)
-{
-    (*var) = ((uint32_t) (_r(*var) * (1 - pwr) + _r(new) * pwr) << 24) +
-        ((uint32_t) (_g(*var) * (1 - pwr) + _g(new) * pwr) << 16) +
-        ((uint32_t) (_b(*var) * (1 - pwr) + _b(new) * pwr) << 8) + _a(*var);
-}
-
-// like change_color, but for alpha component only
-inline void change_alpha(uint32_t *var, uint32_t new, double pwr)
-{
-    *var =
-        (_r(*var) << 24) + (_g(*var) << 16) + (_b(*var) << 8) +
-        (uint32_t) (_a(*var) * (1 - pwr) + _a(new) * pwr);
-}
-
-/**
- * \brief Multiply two alpha values
- * \param a first value
- * \param b second value
- * \return result of multiplication
- * Parameters and result are limited by 0xFF.
- */
-inline uint32_t mult_alpha(uint32_t a, uint32_t b)
-{
-    return 0xFF - (0xFF - a) * (0xFF - b) / 0xFF;
-}
-
-/**
- * \brief Calculate alpha value by piecewise linear function
- * Used for \fad, \fade implementation.
- */
-static unsigned
-interpolate_alpha(long long now, long long t1, long long t2, long long t3,
-                  long long t4, unsigned a1, unsigned a2, unsigned a3)
-{
-    unsigned a;
-    double cf;
-
-    if (now < t1) {
-        a = a1;
-    } else if (now >= t4) {
-        a = a3;
-    } else if (now < t2 && t2 > t1) {
-        cf = ((double) (now - t1)) / (t2 - t1);
-        a = a1 * (1 - cf) + a2 * cf;
-    } else if (now >= t3 && t4 > t3) {
-        cf = ((double) (now - t3)) / (t4 - t3);
-        a = a2 * (1 - cf) + a3 * cf;
-    } else {                    // t2 <= now < t3
-        a = a2;
-    }
-
-    return a;
-}
-
-/**
- * Parse a vector clip into an outline, using the proper scaling
- * parameters.  Translate it to correct for screen borders, if needed.
- */
-static char *parse_vector_clip(ASS_Renderer *render_priv, char *p)
-{
-    int scale = 1;
-    int res = 0;
-    ASS_Drawing *drawing = render_priv->state.clip_drawing;
-
-    ass_drawing_free(drawing);
-    render_priv->state.clip_drawing =
-        ass_drawing_new(render_priv->library, render_priv->ftlibrary);
-    drawing = render_priv->state.clip_drawing;
-    skipopt('(');
-    res = mystrtoi(&p, &scale);
-    skipopt(',')
-    if (!res)
-        scale = 1;
-    drawing->scale = scale;
-    drawing->scale_x = render_priv->font_scale_x * render_priv->font_scale;
-    drawing->scale_y = render_priv->font_scale;
-    while (*p != ')' && *p != '}' && p != 0)
-        ass_drawing_add_char(drawing, *p++);
-    skipopt(')');
-
-    return p;
-}
-
-/**
- * \brief Parse style override tag.
- * \param p string to parse
- * \param pwr multiplier for some tag effects (comes from \t tags)
- */
-static char *parse_tag(ASS_Renderer *render_priv, char *p, double pwr)
-{
-    skip_to('\\');
-    skip('\\');
-    if ((*p == '}') || (*p == 0))
-        return p;
-
-    // New tags introduced in vsfilter 2.39
-    if (mystrcmp(&p, "xbord")) {
-        double val;
-        if (mystrtod(&p, &val))
-            val = render_priv->state.border_x * (1 - pwr) + val * pwr;
-        else
-            val = -1.;
-        change_border(render_priv, val, render_priv->state.border_y);
-        render_priv->state.bm_run_id++;
-    } else if (mystrcmp(&p, "ybord")) {
-        double val;
-        if (mystrtod(&p, &val))
-            val = render_priv->state.border_y * (1 - pwr) + val * pwr;
-        else
-            val = -1.;
-        change_border(render_priv, render_priv->state.border_x, val);
-    } else if (mystrcmp(&p, "xshad")) {
-        double val;
-        if (mystrtod(&p, &val))
-            val = render_priv->state.shadow_x * (1 - pwr) + val * pwr;
-        else
-            val = 0.;
-        render_priv->state.shadow_x = val;
-        render_priv->state.bm_run_id++;
-    } else if (mystrcmp(&p, "yshad")) {
-        double val;
-        if (mystrtod(&p, &val))
-            val = render_priv->state.shadow_y * (1 - pwr) + val * pwr;
-        else
-            val = 0.;
-        render_priv->state.shadow_y = val;
-        render_priv->state.bm_run_id++;
-    } else if (mystrcmp(&p, "fax")) {
-        double val;
-        if (mystrtod(&p, &val))
-            render_priv->state.fax =
-                val * pwr + render_priv->state.fax * (1 - pwr);
-        else
-            render_priv->state.fax = 0.;
-    } else if (mystrcmp(&p, "fay")) {
-        double val;
-        if (mystrtod(&p, &val))
-            render_priv->state.fay =
-                val * pwr + render_priv->state.fay * (1 - pwr);
-        else
-            render_priv->state.fay = 0.;
-    } else if (mystrcmp(&p, "iclip")) {
-        int x0, y0, x1, y1;
-        int res = 1;
-        char *start = p;
-        skipopt('(');
-        res &= mystrtoi(&p, &x0);
-        skipopt(',');
-        res &= mystrtoi(&p, &y0);
-        skipopt(',');
-        res &= mystrtoi(&p, &x1);
-        skipopt(',');
-        res &= mystrtoi(&p, &y1);
-        skipopt(')');
-        if (res) {
-            render_priv->state.clip_x0 =
-                render_priv->state.clip_x0 * (1 - pwr) + x0 * pwr;
-            render_priv->state.clip_x1 =
-                render_priv->state.clip_x1 * (1 - pwr) + x1 * pwr;
-            render_priv->state.clip_y0 =
-                render_priv->state.clip_y0 * (1 - pwr) + y0 * pwr;
-            render_priv->state.clip_y1 =
-                render_priv->state.clip_y1 * (1 - pwr) + y1 * pwr;
-            render_priv->state.clip_mode = 1;
-        } else if (!render_priv->state.clip_drawing) {
-            p = parse_vector_clip(render_priv, start);
-            render_priv->state.clip_drawing_mode = 1;
-        } else
-            render_priv->state.clip_mode = 0;
-    } else if (mystrcmp(&p, "blur")) {
-        double val;
-        if (mystrtod(&p, &val)) {
-            val = render_priv->state.blur * (1 - pwr) + val * pwr;
-            val = (val < 0) ? 0 : val;
-            val = (val > BLUR_MAX_RADIUS) ? BLUR_MAX_RADIUS : val;
-            render_priv->state.blur = val;
-        } else
-            render_priv->state.blur = 0.0;
-        render_priv->state.bm_run_id++;
-        // ASS standard tags
-    } else if (mystrcmp(&p, "fsc")) {
-        char tp = *p++;
-        double val;
-        if (tp == 'x') {
-            if (mystrtod(&p, &val)) {
-                val /= 100;
-                render_priv->state.scale_x =
-                    render_priv->state.scale_x * (1 - pwr) + val * pwr;
-            } else
-                render_priv->state.scale_x =
-                    render_priv->state.style->ScaleX;
-        } else if (tp == 'y') {
-            if (mystrtod(&p, &val)) {
-                val /= 100;
-                render_priv->state.scale_y =
-                    render_priv->state.scale_y * (1 - pwr) + val * pwr;
-            } else
-                render_priv->state.scale_y =
-                    render_priv->state.style->ScaleY;
-        }
-    } else if (mystrcmp(&p, "fsp")) {
-        double val;
-        if (mystrtod(&p, &val))
-            render_priv->state.hspacing =
-                render_priv->state.hspacing * (1 - pwr) + val * pwr;
-        else
-            render_priv->state.hspacing = render_priv->state.style->Spacing;
-    } else if (mystrcmp(&p, "fs+")) {
-        double val;
-        if (mystrtod(&p, &val)) {
-            val = render_priv->state.font_size + pwr * val;
-        } else
-            val = render_priv->state.style->FontSize;
-        if (render_priv->state.font)
-            change_font_size(render_priv, val);
-    } else if (mystrcmp(&p, "fs-")) {
-        double val;
-        if (mystrtod(&p, &val))
-            val = render_priv->state.font_size - pwr * val;
-        else
-            val = render_priv->state.style->FontSize;
-        if (render_priv->state.font)
-            change_font_size(render_priv, val);
-    } else if (mystrcmp(&p, "fs")) {
-        double val;
-        if (mystrtod(&p, &val))
-            val = render_priv->state.font_size * (1 - pwr) + val * pwr;
-        else
-            val = render_priv->state.style->FontSize;
-        if (render_priv->state.font)
-            change_font_size(render_priv, val);
-    } else if (mystrcmp(&p, "bord")) {
-        double val;
-        if (mystrtod(&p, &val)) {
-            if (render_priv->state.border_x == render_priv->state.border_y)
-                val = render_priv->state.border_x * (1 - pwr) + val * pwr;
-        } else
-            val = -1.;          // reset to default
-        change_border(render_priv, val, val);
-        render_priv->state.bm_run_id++;
-    } else if (mystrcmp(&p, "move")) {
-        double x1, x2, y1, y2;
-        long long t1, t2, delta_t, t;
-        double x, y;
-        double k;
-        skip('(');
-        mystrtod(&p, &x1);
-        skip(',');
-        mystrtod(&p, &y1);
-        skip(',');
-        mystrtod(&p, &x2);
-        skip(',');
-        mystrtod(&p, &y2);
-        if (*p == ',') {
-            skip(',');
-            mystrtoll(&p, &t1);
-            skip(',');
-            mystrtoll(&p, &t2);
-            ass_msg(render_priv->library, MSGL_DBG2,
-                   "movement6: (%f, %f) -> (%f, %f), (%" PRId64 " .. %"
-                   PRId64 ")\n", x1, y1, x2, y2, (int64_t) t1,
-                   (int64_t) t2);
-        } else {
-            t1 = 0;
-            t2 = render_priv->state.event->Duration;
-            ass_msg(render_priv->library, MSGL_DBG2,
-                   "movement: (%f, %f) -> (%f, %f)", x1, y1, x2, y2);
-        }
-        skip(')');
-        delta_t = t2 - t1;
-        t = render_priv->time - render_priv->state.event->Start;
-        if (t < t1)
-            k = 0.;
-        else if (t > t2)
-            k = 1.;
-        else
-            k = ((double) (t - t1)) / delta_t;
-        x = k * (x2 - x1) + x1;
-        y = k * (y2 - y1) + y1;
-        if (render_priv->state.evt_type != EVENT_POSITIONED) {
-            render_priv->state.pos_x = x;
-            render_priv->state.pos_y = y;
-            render_priv->state.detect_collisions = 0;
-            render_priv->state.evt_type = EVENT_POSITIONED;
-        }
-    } else if (mystrcmp(&p, "frx")) {
-        double val;
-        if (mystrtod(&p, &val)) {
-            val *= M_PI / 180;
-            render_priv->state.frx =
-                val * pwr + render_priv->state.frx * (1 - pwr);
-        } else
-            render_priv->state.frx = 0.;
-    } else if (mystrcmp(&p, "fry")) {
-        double val;
-        if (mystrtod(&p, &val)) {
-            val *= M_PI / 180;
-            render_priv->state.fry =
-                val * pwr + render_priv->state.fry * (1 - pwr);
-        } else
-            render_priv->state.fry = 0.;
-    } else if (mystrcmp(&p, "frz") || mystrcmp(&p, "fr")) {
-        double val;
-        if (mystrtod(&p, &val)) {
-            val *= M_PI / 180;
-            render_priv->state.frz =
-                val * pwr + render_priv->state.frz * (1 - pwr);
-        } else
-            render_priv->state.frz =
-                M_PI * render_priv->state.style->Angle / 180.;
-    } else if (mystrcmp(&p, "fn")) {
-        char *start = p;
-        char *family;
-        skip_to('\\');
-        if (p > start) {
-            family = malloc(p - start + 1);
-            strncpy(family, start, p - start);
-            family[p - start] = '\0';
-        } else
-            family = strdup(render_priv->state.style->FontName);
-        free(render_priv->state.family);
-        render_priv->state.family = family;
-        update_font(render_priv);
-    } else if (mystrcmp(&p, "alpha")) {
-        uint32_t val;
-        int i;
-        int hex = render_priv->track->track_type == TRACK_TYPE_ASS;
-        if (strtocolor(render_priv->library, &p, &val, hex)) {
-            unsigned char a = val >> 24;
-            for (i = 0; i < 4; ++i)
-                change_alpha(&render_priv->state.c[i], a, pwr);
-        } else {
-            change_alpha(&render_priv->state.c[0],
-                         render_priv->state.style->PrimaryColour, pwr);
-            change_alpha(&render_priv->state.c[1],
-                         render_priv->state.style->SecondaryColour, pwr);
-            change_alpha(&render_priv->state.c[2],
-                         render_priv->state.style->OutlineColour, pwr);
-            change_alpha(&render_priv->state.c[3],
-                         render_priv->state.style->BackColour, pwr);
-        }
-        render_priv->state.bm_run_id++;
-        // FIXME: simplify
-    } else if (mystrcmp(&p, "an")) {
-        int val;
-        if (mystrtoi(&p, &val) && val) {
-            int v = (val - 1) / 3;      // 0, 1 or 2 for vertical alignment
-            ass_msg(render_priv->library, MSGL_DBG2, "an %d", val);
-            if (v != 0)
-                v = 3 - v;
-            val = ((val - 1) % 3) + 1;  // horizontal alignment
-            val += v * 4;
-            ass_msg(render_priv->library, MSGL_DBG2, "align %d", val);
-            if ((render_priv->state.parsed_tags & PARSED_A) == 0) {
-                render_priv->state.alignment = val;
-                render_priv->state.parsed_tags |= PARSED_A;
-            }
-        } else
-            render_priv->state.alignment =
-                render_priv->state.style->Alignment;
-    } else if (mystrcmp(&p, "a")) {
-        int val;
-        if (mystrtoi(&p, &val) && val) {
-            if ((render_priv->state.parsed_tags & PARSED_A) == 0) {
-                // take care of a vsfilter quirk: handle illegal \a8 like \a5
-                render_priv->state.alignment = (val == 8) ? 5 : val;
-                render_priv->state.parsed_tags |= PARSED_A;
-            }
-        } else
-            render_priv->state.alignment =
-                render_priv->state.style->Alignment;
-    } else if (mystrcmp(&p, "pos")) {
-        double v1, v2;
-        skip('(');
-        mystrtod(&p, &v1);
-        skip(',');
-        mystrtod(&p, &v2);
-        skip(')');
-        ass_msg(render_priv->library, MSGL_DBG2, "pos(%f, %f)", v1, v2);
-        if (render_priv->state.evt_type == EVENT_POSITIONED) {
-            ass_msg(render_priv->library, MSGL_V, "Subtitle has a new \\pos "
-                   "after \\move or \\pos, ignoring");
-        } else {
-            render_priv->state.evt_type = EVENT_POSITIONED;
-            render_priv->state.detect_collisions = 0;
-            render_priv->state.pos_x = v1;
-            render_priv->state.pos_y = v2;
-        }
-    } else if (mystrcmp(&p, "fad")) {
-        int a1, a2, a3;
-        long long t1, t2, t3, t4;
-        if (*p == 'e')
-            ++p;                // either \fad or \fade
-        skip('(');
-        mystrtoi(&p, &a1);
-        skip(',');
-        mystrtoi(&p, &a2);
-        if (*p == ')') {
-            // 2-argument version (\fad, according to specs)
-            // a1 and a2 are fade-in and fade-out durations
-            t1 = 0;
-            t4 = render_priv->state.event->Duration;
-            t2 = a1;
-            t3 = t4 - a2;
-            a1 = 0xFF;
-            a2 = 0;
-            a3 = 0xFF;
-        } else {
-            // 6-argument version (\fade)
-            // a1 and a2 (and a3) are opacity values
-            skip(',');
-            mystrtoi(&p, &a3);
-            skip(',');
-            mystrtoll(&p, &t1);
-            skip(',');
-            mystrtoll(&p, &t2);
-            skip(',');
-            mystrtoll(&p, &t3);
-            skip(',');
-            mystrtoll(&p, &t4);
-        }
-        skip(')');
-        if ((render_priv->state.parsed_tags & PARSED_FADE) == 0) {
-            render_priv->state.fade =
-                interpolate_alpha(render_priv->time -
-                        render_priv->state.event->Start, t1, t2,
-                        t3, t4, a1, a2, a3);
-            render_priv->state.parsed_tags |= PARSED_FADE;
-        }
-    } else if (mystrcmp(&p, "org")) {
-        int v1, v2;
-        skip('(');
-        mystrtoi(&p, &v1);
-        skip(',');
-        mystrtoi(&p, &v2);
-        skip(')');
-        ass_msg(render_priv->library, MSGL_DBG2, "org(%d, %d)", v1, v2);
-        if (!render_priv->state.have_origin) {
-            render_priv->state.org_x = v1;
-            render_priv->state.org_y = v2;
-            render_priv->state.have_origin = 1;
-            render_priv->state.detect_collisions = 0;
-        }
-    } else if (mystrcmp(&p, "t")) {
-        double v[3];
-        int v1, v2;
-        double v3;
-        int cnt;
-        long long t1, t2, t, delta_t;
-        double k;
-        skip('(');
-        for (cnt = 0; cnt < 3; ++cnt) {
-            if (*p == '\\')
-                break;
-            mystrtod(&p, &v[cnt]);
-            skip(',');
-        }
-        if (cnt == 3) {
-            v1 = v[0];
-            v2 = (v[1] < v1) ? render_priv->state.event->Duration : v[1];
-            v3 = v[2];
-        } else if (cnt == 2) {
-            v1 = v[0];
-            v2 = (v[1] < v1) ? render_priv->state.event->Duration : v[1];
-            v3 = 1.;
-        } else if (cnt == 1) {
-            v1 = 0;
-            v2 = render_priv->state.event->Duration;
-            v3 = v[0];
-        } else {                // cnt == 0
-            v1 = 0;
-            v2 = render_priv->state.event->Duration;
-            v3 = 1.;
-        }
-        render_priv->state.detect_collisions = 0;
-        t1 = v1;
-        t2 = v2;
-        delta_t = v2 - v1;
-        if (v3 < 0.)
-            v3 = 0.;
-        t = render_priv->time - render_priv->state.event->Start;        // FIXME: move to render_context
-        if (t <= t1)
-            k = 0.;
-        else if (t >= t2)
-            k = 1.;
-        else {
-            assert(delta_t != 0.);
-            k = pow(((double) (t - t1)) / delta_t, v3);
-        }
-        while (*p == '\\')
-            p = parse_tag(render_priv, p, k);   // maybe k*pwr ? no, specs forbid nested \t's
-        skip_to(')');           // in case there is some unknown tag or a comment
-        skip(')');
-    } else if (mystrcmp(&p, "clip")) {
-        char *start = p;
-        int x0, y0, x1, y1;
-        int res = 1;
-        skipopt('(');
-        res &= mystrtoi(&p, &x0);
-        skipopt(',');
-        res &= mystrtoi(&p, &y0);
-        skipopt(',');
-        res &= mystrtoi(&p, &x1);
-        skipopt(',');
-        res &= mystrtoi(&p, &y1);
-        skipopt(')');
-        if (res) {
-            render_priv->state.clip_x0 =
-                render_priv->state.clip_x0 * (1 - pwr) + x0 * pwr;
-            render_priv->state.clip_x1 =
-                render_priv->state.clip_x1 * (1 - pwr) + x1 * pwr;
-            render_priv->state.clip_y0 =
-                render_priv->state.clip_y0 * (1 - pwr) + y0 * pwr;
-            render_priv->state.clip_y1 =
-                render_priv->state.clip_y1 * (1 - pwr) + y1 * pwr;
-        // Might be a vector clip
-        } else if (!render_priv->state.clip_drawing) {
-            p = parse_vector_clip(render_priv, start);
-            render_priv->state.clip_drawing_mode = 0;
-        } else {
-            render_priv->state.clip_x0 = 0;
-            render_priv->state.clip_y0 = 0;
-            render_priv->state.clip_x1 = render_priv->track->PlayResX;
-            render_priv->state.clip_y1 = render_priv->track->PlayResY;
-        }
-    } else if (mystrcmp(&p, "c")) {
-        uint32_t val;
-        int hex = render_priv->track->track_type == TRACK_TYPE_ASS;
-        if (!strtocolor(render_priv->library, &p, &val, hex))
-            val = render_priv->state.style->PrimaryColour;
-        ass_msg(render_priv->library, MSGL_DBG2, "color: %X", val);
-        change_color(&render_priv->state.c[0], val, pwr);
-        render_priv->state.bm_run_id++;
-    } else if ((*p >= '1') && (*p <= '4') && (++p)
-               && (mystrcmp(&p, "c") || mystrcmp(&p, "a"))) {
-        char n = *(p - 2);
-        int cidx = n - '1';
-        char cmd = *(p - 1);
-        uint32_t val;
-        int hex = render_priv->track->track_type == TRACK_TYPE_ASS;
-        assert((n >= '1') && (n <= '4'));
-        if (!strtocolor(render_priv->library, &p, &val, hex))
-            switch (n) {
-            case '1':
-                val = render_priv->state.style->PrimaryColour;
-                break;
-            case '2':
-                val = render_priv->state.style->SecondaryColour;
-                break;
-            case '3':
-                val = render_priv->state.style->OutlineColour;
-                break;
-            case '4':
-                val = render_priv->state.style->BackColour;
-                break;
-            default:
-                val = 0;
-                break;          // impossible due to assert; avoid compilation warning
-            }
-        switch (cmd) {
-        case 'c':
-            change_color(render_priv->state.c + cidx, val, pwr);
-            render_priv->state.bm_run_id++;
-            break;
-        case 'a':
-            change_alpha(render_priv->state.c + cidx, val >> 24, pwr);
-            render_priv->state.bm_run_id++;
-            break;
-        default:
-            ass_msg(render_priv->library, MSGL_WARN, "Bad command: %c%c",
-                    n, cmd);
-            break;
-        }
-        ass_msg(render_priv->library, MSGL_DBG2, "single c/a at %f: %c%c = %X",
-               pwr, n, cmd, render_priv->state.c[cidx]);
-    } else if (mystrcmp(&p, "r")) {
-        reset_render_context(render_priv);
-    } else if (mystrcmp(&p, "be")) {
-        int val;
-        if (mystrtoi(&p, &val)) {
-            // Clamp to a safe upper limit, since high values need excessive CPU
-            val = (val < 0) ? 0 : val;
-            val = (val > MAX_BE) ? MAX_BE : val;
-            render_priv->state.be = val;
-        } else
-            render_priv->state.be = 0;
-        render_priv->state.bm_run_id++;
-    } else if (mystrcmp(&p, "b")) {
-        int b;
-        if (mystrtoi(&p, &b)) {
-            if (pwr >= .5)
-                render_priv->state.bold = b;
-        } else
-            render_priv->state.bold = render_priv->state.style->Bold;
-        update_font(render_priv);
-    } else if (mystrcmp(&p, "i")) {
-        int i;
-        if (mystrtoi(&p, &i)) {
-            if (pwr >= .5)
-                render_priv->state.italic = i;
-        } else
-            render_priv->state.italic = render_priv->state.style->Italic;
-        update_font(render_priv);
-    } else if (mystrcmp(&p, "kf") || mystrcmp(&p, "K")) {
-        int val = 0;
-        mystrtoi(&p, &val);
-        render_priv->state.effect_type = EF_KARAOKE_KF;
-        if (render_priv->state.effect_timing)
-            render_priv->state.effect_skip_timing +=
-                render_priv->state.effect_timing;
-        render_priv->state.effect_timing = val * 10;
-    } else if (mystrcmp(&p, "ko")) {
-        int val = 0;
-        mystrtoi(&p, &val);
-        render_priv->state.effect_type = EF_KARAOKE_KO;
-        if (render_priv->state.effect_timing)
-            render_priv->state.effect_skip_timing +=
-                render_priv->state.effect_timing;
-        render_priv->state.effect_timing = val * 10;
-    } else if (mystrcmp(&p, "k")) {
-        int val = 0;
-        mystrtoi(&p, &val);
-        render_priv->state.effect_type = EF_KARAOKE;
-        if (render_priv->state.effect_timing)
-            render_priv->state.effect_skip_timing +=
-                render_priv->state.effect_timing;
-        render_priv->state.effect_timing = val * 10;
-    } else if (mystrcmp(&p, "shad")) {
-        double val;
-        if (mystrtod(&p, &val)) {
-            if (render_priv->state.shadow_x == render_priv->state.shadow_y)
-                val = render_priv->state.shadow_x * (1 - pwr) + val * pwr;
-        } else
-            val = 0.;
-        render_priv->state.shadow_x = render_priv->state.shadow_y = val;
-        render_priv->state.bm_run_id++;
-    } else if (mystrcmp(&p, "s")) {
-        int val;
-        if (mystrtoi(&p, &val) && val)
-            render_priv->state.flags |= DECO_STRIKETHROUGH;
-        else
-            render_priv->state.flags &= ~DECO_STRIKETHROUGH;
-        render_priv->state.bm_run_id++;
-    } else if (mystrcmp(&p, "u")) {
-        int val;
-        if (mystrtoi(&p, &val) && val)
-            render_priv->state.flags |= DECO_UNDERLINE;
-        else
-            render_priv->state.flags &= ~DECO_UNDERLINE;
-        render_priv->state.bm_run_id++;
-    } else if (mystrcmp(&p, "pbo")) {
-        double val = 0;
-        if (mystrtod(&p, &val))
-            render_priv->state.drawing->pbo = val;
-    } else if (mystrcmp(&p, "p")) {
-        int val;
-        if (!mystrtoi(&p, &val))
-            val = 0;
-        if (val)
-            render_priv->state.drawing->scale = val;
-        render_priv->state.drawing_mode = !!val;
-    } else if (mystrcmp(&p, "q")) {
-        int val;
-        if (!mystrtoi(&p, &val))
-            val = render_priv->track->WrapStyle;
-        render_priv->state.wrap_style = val;
-    } else if (mystrcmp(&p, "fe")) {
-        int val;
-        if (!mystrtoi(&p, &val))
-            val = render_priv->state.style->Encoding;
-        render_priv->state.font_encoding = val;
-    }
-
-    return p;
-}
-
-void apply_transition_effects(ASS_Renderer *render_priv, ASS_Event *event)
-{
-    int v[4];
-    int cnt;
-    char *p = event->Effect;
-
-    if (!p || !*p)
-        return;
-
-    cnt = 0;
-    while (cnt < 4 && (p = strchr(p, ';'))) {
-        v[cnt++] = atoi(++p);
-    }
-
-    if (strncmp(event->Effect, "Banner;", 7) == 0) {
-        int delay;
-        if (cnt < 1) {
-            ass_msg(render_priv->library, MSGL_V,
-                    "Error parsing effect: '%s'", event->Effect);
-            return;
-        }
-        if (cnt >= 2 && v[1] == 0)      // right-to-left
-            render_priv->state.scroll_direction = SCROLL_RL;
-        else                    // left-to-right
-            render_priv->state.scroll_direction = SCROLL_LR;
-
-        delay = v[0];
-        if (delay == 0)
-            delay = 1;          // ?
-        render_priv->state.scroll_shift =
-            (render_priv->time - render_priv->state.event->Start) / delay;
-        render_priv->state.evt_type = EVENT_HSCROLL;
-        return;
-    }
-
-    if (strncmp(event->Effect, "Scroll up;", 10) == 0) {
-        render_priv->state.scroll_direction = SCROLL_BT;
-    } else if (strncmp(event->Effect, "Scroll down;", 12) == 0) {
-        render_priv->state.scroll_direction = SCROLL_TB;
-    } else {
-        ass_msg(render_priv->library, MSGL_DBG2,
-                "Unknown transition effect: '%s'", event->Effect);
-        return;
-    }
-    // parse scroll up/down parameters
-    {
-        int delay;
-        int y0, y1;
-        if (cnt < 3) {
-            ass_msg(render_priv->library, MSGL_V,
-                    "Error parsing effect: '%s'", event->Effect);
-            return;
-        }
-        delay = v[2];
-        if (delay == 0)
-            delay = 1;          // ?
-        render_priv->state.scroll_shift =
-            (render_priv->time - render_priv->state.event->Start) / delay;
-        if (v[0] < v[1]) {
-            y0 = v[0];
-            y1 = v[1];
-        } else {
-            y0 = v[1];
-            y1 = v[0];
-        }
-        if (y1 == 0)
-            y1 = render_priv->track->PlayResY;  // y0=y1=0 means fullscreen scrolling
-        render_priv->state.clip_y0 = y0;
-        render_priv->state.clip_y1 = y1;
-        render_priv->state.evt_type = EVENT_VSCROLL;
-        render_priv->state.detect_collisions = 0;
-    }
-
-}
-
-/**
- * \brief determine karaoke effects
- * Karaoke effects cannot be calculated during parse stage (get_next_char()),
- * so they are done in a separate step.
- * Parse stage: when karaoke style override is found, its parameters are stored in the next glyph's
- * (the first glyph of the karaoke word)'s effect_type and effect_timing.
- * This function:
- * 1. sets effect_type for all glyphs in the word (_karaoke_ word)
- * 2. sets effect_timing for all glyphs to x coordinate of the border line between the left and right karaoke parts
- * (left part is filled with PrimaryColour, right one - with SecondaryColour).
- */
-void process_karaoke_effects(ASS_Renderer *render_priv)
-{
-    GlyphInfo *cur, *cur2;
-    GlyphInfo *s1, *e1;      // start and end of the current word
-    GlyphInfo *s2;           // start of the next word
-    int i;
-    int timing;                 // current timing
-    int tm_start, tm_end;       // timings at start and end of the current word
-    int tm_current;
-    double dt;
-    int x;
-    int x_start, x_end;
-
-    tm_current = render_priv->time - render_priv->state.event->Start;
-    timing = 0;
-    s1 = s2 = 0;
-    for (i = 0; i <= render_priv->text_info.length; ++i) {
-        cur = render_priv->text_info.glyphs + i;
-        if ((i == render_priv->text_info.length)
-            || (cur->effect_type != EF_NONE)) {
-            s1 = s2;
-            s2 = cur;
-            if (s1) {
-                e1 = s2 - 1;
-                tm_start = timing + s1->effect_skip_timing;
-                tm_end = tm_start + s1->effect_timing;
-                timing = tm_end;
-                x_start = 1000000;
-                x_end = -1000000;
-                for (cur2 = s1; cur2 <= e1; ++cur2) {
-                    x_start = FFMIN(x_start, d6_to_int(cur2->bbox.xMin + cur2->pos.x));
-                    x_end = FFMAX(x_end, d6_to_int(cur2->bbox.xMax + cur2->pos.x));
-                }
-
-                dt = (tm_current - tm_start);
-                if ((s1->effect_type == EF_KARAOKE)
-                    || (s1->effect_type == EF_KARAOKE_KO)) {
-                    if (dt > 0)
-                        x = x_end + 1;
-                    else
-                        x = x_start;
-                } else if (s1->effect_type == EF_KARAOKE_KF) {
-                    dt /= (tm_end - tm_start);
-                    x = x_start + (x_end - x_start) * dt;
-                } else {
-                    ass_msg(render_priv->library, MSGL_ERR,
-                            "Unknown effect type");
-                    continue;
-                }
-
-                for (cur2 = s1; cur2 <= e1; ++cur2) {
-                    cur2->effect_type = s1->effect_type;
-                    cur2->effect_timing = x - d6_to_int(cur2->pos.x);
-                }
-            }
-        }
-    }
-}
-
-
-/**
- * \brief Get next ucs4 char from string, parsing and executing style overrides
- * \param str string pointer
- * \return ucs4 code of the next char
- * On return str points to the unparsed part of the string
- */
-unsigned get_next_char(ASS_Renderer *render_priv, char **str)
-{
-    char *p = *str;
-    unsigned chr;
-    if (*p == '{') {            // '\0' goes here
-        p++;
-        while (1) {
-            p = parse_tag(render_priv, p, 1.);
-            if (*p == '}') {    // end of tag
-                p++;
-                if (*p == '{') {
-                    p++;
-                    continue;
-                } else
-                    break;
-            } else if (*p != '\\')
-                ass_msg(render_priv->library, MSGL_V,
-                        "Unable to parse: '%.30s'", p);
-            if (*p == 0)
-                break;
-        }
-    }
-    if (*p == '\t') {
-        ++p;
-        *str = p;
-        return ' ';
-    }
-    if (*p == '\\') {
-        if ((p[1] == 'N') || ((p[1] == 'n') &&
-                              (render_priv->state.wrap_style == 2))) {
-            p += 2;
-            *str = p;
-            return '\n';
-        } else if (p[1] == 'n') {
-            p += 2;
-            *str = p;
-            return ' ';
-        } else if (p[1] == 'h') {
-            p += 2;
-            *str = p;
-            return NBSP;
-        } else if (p[1] == '{') {
-            p += 2;
-            *str = p;
-            return '{';
-        } else if (p[1] == '}') {
-            p += 2;
-            *str = p;
-            return '}';
-        }
-    }
-    chr = ass_utf8_get_char((char **) &p);
-    *str = p;
-    return chr;
-}
diff --git a/lib/libass/libass/ass_parse.h b/lib/libass/libass/ass_parse.h
deleted file mode 100644
index 2e145dcbfa..0000000000
--- a/lib/libass/libass/ass_parse.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * Copyright (C) 2009 Grigori Goronzy <greg@geekmind.org>
- *
- * This file is part of libass.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#ifndef LIBASS_PARSE_H
-#define LIBASS_PARSE_H
-
-#define BLUR_MAX_RADIUS 100.0
-
-#define _r(c)   ((c) >> 24)
-#define _g(c)   (((c) >> 16) & 0xFF)
-#define _b(c)   (((c) >> 8) & 0xFF)
-#define _a(c)   ((c) & 0xFF)
-
-void update_font(ASS_Renderer *render_priv);
-double ensure_font_size(ASS_Renderer *priv, double size);
-void change_border(ASS_Renderer *render_priv, double border_x,
-                   double border_y);
-void apply_transition_effects(ASS_Renderer *render_priv, ASS_Event *event);
-void process_karaoke_effects(ASS_Renderer *render_priv);
-unsigned get_next_char(ASS_Renderer *render_priv, char **str);
-extern void change_alpha(uint32_t *var, uint32_t new, double pwr);
-extern uint32_t mult_alpha(uint32_t a, uint32_t b);
-
-
-#endif /* LIBASS_PARSE_H */
diff --git a/lib/libass/libass/ass_render.c b/lib/libass/libass/ass_render.c
deleted file mode 100644
index 97befdded1..0000000000
--- a/lib/libass/libass/ass_render.c
+++ /dev/null
@@ -1,2539 +0,0 @@
-/*
- * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
- *
- * This file is part of libass.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include "config.h"
-
-#include <assert.h>
-#include <math.h>
-
-#include "ass_render.h"
-#include "ass_parse.h"
-#include "ass_shaper.h"
-
-#define MAX_GLYPHS_INITIAL 1024
-#define MAX_LINES_INITIAL 64
-#define SUBPIXEL_MASK 63
-#define SUBPIXEL_ACCURACY 7
-
-ASS_Renderer *ass_renderer_init(ASS_Library *library)
-{
-    int error;
-    FT_Library ft;
-    ASS_Renderer *priv = 0;
-    int vmajor, vminor, vpatch;
-
-    error = FT_Init_FreeType(&ft);
-    if (error) {
-        ass_msg(library, MSGL_FATAL, "%s failed", "FT_Init_FreeType");
-        goto ass_init_exit;
-    }
-
-    FT_Library_Version(ft, &vmajor, &vminor, &vpatch);
-    ass_msg(library, MSGL_V, "Raster: FreeType %d.%d.%d",
-           vmajor, vminor, vpatch);
-
-    priv = calloc(1, sizeof(ASS_Renderer));
-    if (!priv) {
-        FT_Done_FreeType(ft);
-        goto ass_init_exit;
-    }
-
-    priv->synth_priv = ass_synth_init(BLUR_MAX_RADIUS);
-
-    priv->library = library;
-    priv->ftlibrary = ft;
-    // images_root and related stuff is zero-filled in calloc
-
-    priv->cache.font_cache = ass_font_cache_create();
-    priv->cache.bitmap_cache = ass_bitmap_cache_create();
-    priv->cache.composite_cache = ass_composite_cache_create();
-    priv->cache.outline_cache = ass_outline_cache_create();
-    priv->cache.glyph_max = GLYPH_CACHE_MAX;
-    priv->cache.bitmap_max_size = BITMAP_CACHE_MAX_SIZE;
-
-    priv->text_info.max_glyphs = MAX_GLYPHS_INITIAL;
-    priv->text_info.max_lines = MAX_LINES_INITIAL;
-    priv->text_info.glyphs = calloc(MAX_GLYPHS_INITIAL, sizeof(GlyphInfo));
-    priv->text_info.lines = calloc(MAX_LINES_INITIAL, sizeof(LineInfo));
-
-    priv->settings.font_size_coeff = 1.;
-
-    priv->shaper = ass_shaper_new(0);
-    ass_shaper_info(library);
-#ifdef CONFIG_HARFBUZZ
-    priv->settings.shaper = ASS_SHAPING_COMPLEX;
-#else
-    priv->settings.shaper = ASS_SHAPING_SIMPLE;
-#endif
-
-  ass_init_exit:
-    if (priv)
-        ass_msg(library, MSGL_V, "Initialized");
-    else
-        ass_msg(library, MSGL_ERR, "Initialization failed");
-
-    return priv;
-}
-
-static void free_list_clear(ASS_Renderer *render_priv)
-{
-    if (render_priv->free_head) {
-        FreeList *item = render_priv->free_head;
-        while(item) {
-            FreeList *oi = item;
-            free(item->object);
-            item = item->next;
-            free(oi);
-        }
-        render_priv->free_head = NULL;
-    }
-}
-
-void ass_renderer_done(ASS_Renderer *render_priv)
-{
-    ass_cache_done(render_priv->cache.font_cache);
-    ass_cache_done(render_priv->cache.bitmap_cache);
-    ass_cache_done(render_priv->cache.composite_cache);
-    ass_cache_done(render_priv->cache.outline_cache);
-
-    ass_free_images(render_priv->images_root);
-    ass_free_images(render_priv->prev_images_root);
-
-    if (render_priv->state.stroker) {
-        FT_Stroker_Done(render_priv->state.stroker);
-        render_priv->state.stroker = 0;
-    }
-    if (render_priv->ftlibrary)
-        FT_Done_FreeType(render_priv->ftlibrary);
-    if (render_priv->fontconfig_priv)
-        fontconfig_done(render_priv->fontconfig_priv);
-    if (render_priv->synth_priv)
-        ass_synth_done(render_priv->synth_priv);
-    ass_shaper_free(render_priv->shaper);
-    free(render_priv->eimg);
-    free(render_priv->text_info.glyphs);
-    free(render_priv->text_info.lines);
-
-    free(render_priv->settings.default_font);
-    free(render_priv->settings.default_family);
-
-    free_list_clear(render_priv);
-    free(render_priv);
-}
-
-/**
- * \brief Create a new ASS_Image
- * Parameters are the same as ASS_Image fields.
- */
-static ASS_Image *my_draw_bitmap(unsigned char *bitmap, int bitmap_w,
-                                 int bitmap_h, int stride, int dst_x,
-                                 int dst_y, uint32_t color)
-{
-    ASS_Image *img = malloc(sizeof(ASS_Image));
-
-    if (img) {
-        img->w = bitmap_w;
-        img->h = bitmap_h;
-        img->stride = stride;
-        img->bitmap = bitmap;
-        img->color = color;
-        img->dst_x = dst_x;
-        img->dst_y = dst_y;
-    }
-
-    return img;
-}
-
-/**
- * \brief Mapping between script and screen coordinates
- */
-static double x2scr(ASS_Renderer *render_priv, double x)
-{
-    return x * render_priv->orig_width_nocrop / render_priv->font_scale_x /
-        render_priv->track->PlayResX +
-        FFMAX(render_priv->settings.left_margin, 0);
-}
-static double x2scr_pos(ASS_Renderer *render_priv, double x)
-{
-    return x * render_priv->orig_width / render_priv->font_scale_x / render_priv->track->PlayResX +
-        render_priv->settings.left_margin;
-}
-static double x2scr_scaled(ASS_Renderer *render_priv, double x)
-{
-    return x * render_priv->orig_width_nocrop /
-        render_priv->track->PlayResX +
-        FFMAX(render_priv->settings.left_margin, 0);
-}
-static double x2scr_pos_scaled(ASS_Renderer *render_priv, double x)
-{
-    return x * render_priv->orig_width / render_priv->track->PlayResX +
-        render_priv->settings.left_margin;
-}
-/**
- * \brief Mapping between script and screen coordinates
- */
-static double y2scr(ASS_Renderer *render_priv, double y)
-{
-    return y * render_priv->orig_height_nocrop /
-        render_priv->track->PlayResY +
-        FFMAX(render_priv->settings.top_margin, 0);
-}
-static double y2scr_pos(ASS_Renderer *render_priv, double y)
-{
-    return y * render_priv->orig_height / render_priv->track->PlayResY +
-        render_priv->settings.top_margin;
-}
-
-// the same for toptitles
-static double y2scr_top(ASS_Renderer *render_priv, double y)
-{
-    if (render_priv->settings.use_margins)
-        return y * render_priv->orig_height_nocrop /
-            render_priv->track->PlayResY;
-    else
-        return y * render_priv->orig_height_nocrop /
-            render_priv->track->PlayResY +
-            FFMAX(render_priv->settings.top_margin, 0);
-}
-// the same for subtitles
-static double y2scr_sub(ASS_Renderer *render_priv, double y)
-{
-    if (render_priv->settings.use_margins)
-        return y * render_priv->orig_height_nocrop /
-            render_priv->track->PlayResY +
-            FFMAX(render_priv->settings.top_margin, 0)
-            + FFMAX(render_priv->settings.bottom_margin, 0);
-    else
-        return y * render_priv->orig_height_nocrop /
-            render_priv->track->PlayResY +
-            FFMAX(render_priv->settings.top_margin, 0);
-}
-
-/*
- * \brief Convert bitmap glyphs into ASS_Image list with inverse clipping
- *
- * Inverse clipping with the following strategy:
- * - find rectangle from (x0, y0) to (cx0, y1)
- * - find rectangle from (cx0, y0) to (cx1, cy0)
- * - find rectangle from (cx0, cy1) to (cx1, y1)
- * - find rectangle from (cx1, y0) to (x1, y1)
- * These rectangles can be invalid and in this case are discarded.
- * Afterwards, they are clipped against the screen coordinates.
- * In an additional pass, the rectangles need to be split up left/right for
- * karaoke effects.  This can result in a lot of bitmaps (6 to be exact).
- */
-static ASS_Image **render_glyph_i(ASS_Renderer *render_priv,
-                                  Bitmap *bm, int dst_x, int dst_y,
-                                  uint32_t color, uint32_t color2, int brk,
-                                  ASS_Image **tail)
-{
-    int i, j, x0, y0, x1, y1, cx0, cy0, cx1, cy1, sx, sy, zx, zy;
-    Rect r[4];
-    ASS_Image *img;
-
-    dst_x += bm->left;
-    dst_y += bm->top;
-
-    // we still need to clip against screen boundaries
-    zx = x2scr_pos_scaled(render_priv, 0);
-    zy = y2scr_pos(render_priv, 0);
-    sx = x2scr_pos_scaled(render_priv, render_priv->track->PlayResX);
-    sy = y2scr_pos(render_priv, render_priv->track->PlayResY);
-
-    x0 = 0;
-    y0 = 0;
-    x1 = bm->w;
-    y1 = bm->h;
-    cx0 = render_priv->state.clip_x0 - dst_x;
-    cy0 = render_priv->state.clip_y0 - dst_y;
-    cx1 = render_priv->state.clip_x1 - dst_x;
-    cy1 = render_priv->state.clip_y1 - dst_y;
-
-    // calculate rectangles and discard invalid ones while we're at it.
-    i = 0;
-    r[i].x0 = x0;
-    r[i].y0 = y0;
-    r[i].x1 = (cx0 > x1) ? x1 : cx0;
-    r[i].y1 = y1;
-    if (r[i].x1 > r[i].x0 && r[i].y1 > r[i].y0) i++;
-    r[i].x0 = (cx0 < 0) ? x0 : cx0;
-    r[i].y0 = y0;
-    r[i].x1 = (cx1 > x1) ? x1 : cx1;
-    r[i].y1 = (cy0 > y1) ? y1 : cy0;
-    if (r[i].x1 > r[i].x0 && r[i].y1 > r[i].y0) i++;
-    r[i].x0 = (cx0 < 0) ? x0 : cx0;
-    r[i].y0 = (cy1 < 0) ? y0 : cy1;
-    r[i].x1 = (cx1 > x1) ? x1 : cx1;
-    r[i].y1 = y1;
-    if (r[i].x1 > r[i].x0 && r[i].y1 > r[i].y0) i++;
-    r[i].x0 = (cx1 < 0) ? x0 : cx1;
-    r[i].y0 = y0;
-    r[i].x1 = x1;
-    r[i].y1 = y1;
-    if (r[i].x1 > r[i].x0 && r[i].y1 > r[i].y0) i++;
-
-    // clip each rectangle to screen coordinates
-    for (j = 0; j < i; j++) {
-        r[j].x0 = (r[j].x0 + dst_x < zx) ? zx - dst_x : r[j].x0;
-        r[j].y0 = (r[j].y0 + dst_y < zy) ? zy - dst_y : r[j].y0;
-        r[j].x1 = (r[j].x1 + dst_x > sx) ? sx - dst_x : r[j].x1;
-        r[j].y1 = (r[j].y1 + dst_y > sy) ? sy - dst_y : r[j].y1;
-    }
-
-    // draw the rectangles
-    for (j = 0; j < i; j++) {
-        int lbrk = brk;
-        // kick out rectangles that are invalid now
-        if (r[j].x1 <= r[j].x0 || r[j].y1 <= r[j].y0)
-            continue;
-        // split up into left and right for karaoke, if needed
-        if (lbrk > r[j].x0) {
-            if (lbrk > r[j].x1) lbrk = r[j].x1;
-            img = my_draw_bitmap(bm->buffer + r[j].y0 * bm->stride + r[j].x0,
-                lbrk - r[j].x0, r[j].y1 - r[j].y0,
-                bm->stride, dst_x + r[j].x0, dst_y + r[j].y0, color);
-            if (!img) break;
-            *tail = img;
-            tail = &img->next;
-        }
-        if (lbrk < r[j].x1) {
-            if (lbrk < r[j].x0) lbrk = r[j].x0;
-            img = my_draw_bitmap(bm->buffer + r[j].y0 * bm->stride + lbrk,
-                r[j].x1 - lbrk, r[j].y1 - r[j].y0,
-                bm->stride, dst_x + lbrk, dst_y + r[j].y0, color2);
-            if (!img) break;
-            *tail = img;
-            tail = &img->next;
-        }
-    }
-
-    return tail;
-}
-
-/**
- * \brief convert bitmap glyph into ASS_Image struct(s)
- * \param bit freetype bitmap glyph, FT_PIXEL_MODE_GRAY
- * \param dst_x bitmap x coordinate in video frame
- * \param dst_y bitmap y coordinate in video frame
- * \param color first color, RGBA
- * \param color2 second color, RGBA
- * \param brk x coordinate relative to glyph origin, color is used to the left of brk, color2 - to the right
- * \param tail pointer to the last image's next field, head of the generated list should be stored here
- * \return pointer to the new list tail
- * Performs clipping. Uses my_draw_bitmap for actual bitmap convertion.
- */
-static ASS_Image **
-render_glyph(ASS_Renderer *render_priv, Bitmap *bm, int dst_x, int dst_y,
-             uint32_t color, uint32_t color2, int brk, ASS_Image **tail)
-{
-
-    // brk is relative to dst_x
-    // color = color left of brk
-    // color2 = color right of brk
-    int b_x0, b_y0, b_x1, b_y1; // visible part of the bitmap
-    int clip_x0, clip_y0, clip_x1, clip_y1;
-    int tmp;
-    ASS_Image *img;
-
-    // Inverse clipping in use?
-    if (render_priv->state.clip_mode)
-        return render_glyph_i(render_priv, bm, dst_x, dst_y, color, color2,
-                              brk, tail);
-
-    dst_x += bm->left;
-    dst_y += bm->top;
-    brk -= bm->left;
-
-    // clipping
-    clip_x0 = FFMINMAX(render_priv->state.clip_x0, 0, render_priv->width);
-    clip_y0 = FFMINMAX(render_priv->state.clip_y0, 0, render_priv->height);
-    clip_x1 = FFMINMAX(render_priv->state.clip_x1, 0, render_priv->width);
-    clip_y1 = FFMINMAX(render_priv->state.clip_y1, 0, render_priv->height);
-    b_x0 = 0;
-    b_y0 = 0;
-    b_x1 = bm->w;
-    b_y1 = bm->h;
-
-    tmp = dst_x - clip_x0;
-    if (tmp < 0) {
-        ass_msg(render_priv->library, MSGL_DBG2, "clip left");
-        b_x0 = -tmp;
-    }
-    tmp = dst_y - clip_y0;
-    if (tmp < 0) {
-        ass_msg(render_priv->library, MSGL_DBG2, "clip top");
-        b_y0 = -tmp;
-    }
-    tmp = clip_x1 - dst_x - bm->w;
-    if (tmp < 0) {
-        ass_msg(render_priv->library, MSGL_DBG2, "clip right");
-        b_x1 = bm->w + tmp;
-    }
-    tmp = clip_y1 - dst_y - bm->h;
-    if (tmp < 0) {
-        ass_msg(render_priv->library, MSGL_DBG2, "clip bottom");
-        b_y1 = bm->h + tmp;
-    }
-
-    if ((b_y0 >= b_y1) || (b_x0 >= b_x1))
-        return tail;
-
-    if (brk > b_x0) {           // draw left part
-        if (brk > b_x1)
-            brk = b_x1;
-        img = my_draw_bitmap(bm->buffer + bm->stride * b_y0 + b_x0,
-                             brk - b_x0, b_y1 - b_y0, bm->stride,
-                             dst_x + b_x0, dst_y + b_y0, color);
-        if (!img) return tail;
-        *tail = img;
-        tail = &img->next;
-    }
-    if (brk < b_x1) {           // draw right part
-        if (brk < b_x0)
-            brk = b_x0;
-        img = my_draw_bitmap(bm->buffer + bm->stride * b_y0 + brk,
-                             b_x1 - brk, b_y1 - b_y0, bm->stride,
-                             dst_x + brk, dst_y + b_y0, color2);
-        if (!img) return tail;
-        *tail = img;
-        tail = &img->next;
-    }
-    return tail;
-}
-
-/**
- * \brief Replace the bitmap buffer in ASS_Image with a copy
- * \param img ASS_Image to operate on
- * \return pointer to old bitmap buffer
- */
-static unsigned char *clone_bitmap_buffer(ASS_Image *img)
-{
-    unsigned char *old_bitmap = img->bitmap;
-    int size = img->stride * (img->h - 1) + img->w;
-    img->bitmap = malloc(size);
-    memcpy(img->bitmap, old_bitmap, size);
-    return old_bitmap;
-}
-
-/**
- * \brief Calculate overlapping area of two consecutive bitmaps and in case they
- * overlap, blend them together
- * Mainly useful for translucent glyphs and especially borders, to avoid the
- * luminance adding up where they overlap (which looks ugly)
- */
-static void
-render_overlap(ASS_Renderer *render_priv, ASS_Image **last_tail,
-               ASS_Image **tail)
-{
-    int left, top, bottom, right;
-    int old_left, old_top, w, h, cur_left, cur_top;
-    int x, y, opos, cpos;
-    char m;
-    CompositeHashKey hk;
-    CompositeHashValue *hv;
-    CompositeHashValue chv;
-    int ax = (*last_tail)->dst_x;
-    int ay = (*last_tail)->dst_y;
-    int aw = (*last_tail)->w;
-    int as = (*last_tail)->stride;
-    int ah = (*last_tail)->h;
-    int bx = (*tail)->dst_x;
-    int by = (*tail)->dst_y;
-    int bw = (*tail)->w;
-    int bs = (*tail)->stride;
-    int bh = (*tail)->h;
-    unsigned char *a;
-    unsigned char *b;
-
-    if ((*last_tail)->bitmap == (*tail)->bitmap)
-        return;
-
-    if ((*last_tail)->color != (*tail)->color)
-        return;
-
-    // Calculate overlap coordinates
-    left = (ax > bx) ? ax : bx;
-    top = (ay > by) ? ay : by;
-    right = ((ax + aw) < (bx + bw)) ? (ax + aw) : (bx + bw);
-    bottom = ((ay + ah) < (by + bh)) ? (ay + ah) : (by + bh);
-    if ((right <= left) || (bottom <= top))
-        return;
-    old_left = left - ax;
-    old_top = top - ay;
-    w = right - left;
-    h = bottom - top;
-    cur_left = left - bx;
-    cur_top = top - by;
-
-    // Query cache
-    hk.a = (*last_tail)->bitmap;
-    hk.b = (*tail)->bitmap;
-    hk.aw = aw;
-    hk.ah = ah;
-    hk.bw = bw;
-    hk.bh = bh;
-    hk.ax = ax;
-    hk.ay = ay;
-    hk.bx = bx;
-    hk.by = by;
-    hk.as = as;
-    hk.bs = bs;
-    hv = ass_cache_get(render_priv->cache.composite_cache, &hk);
-    if (hv) {
-        (*last_tail)->bitmap = hv->a;
-        (*tail)->bitmap = hv->b;
-        return;
-    }
-    // Allocate new bitmaps and copy over data
-    a = clone_bitmap_buffer(*last_tail);
-    b = clone_bitmap_buffer(*tail);
-
-    // Blend overlapping area
-    for (y = 0; y < h; y++)
-        for (x = 0; x < w; x++) {
-            opos = (old_top + y) * (as) + (old_left + x);
-            cpos = (cur_top + y) * (bs) + (cur_left + x);
-            m = FFMIN(a[opos] + b[cpos], 0xff);
-            (*last_tail)->bitmap[opos] = 0;
-            (*tail)->bitmap[cpos] = m;
-        }
-
-    // Insert bitmaps into the cache
-    chv.a = (*last_tail)->bitmap;
-    chv.b = (*tail)->bitmap;
-    ass_cache_put(render_priv->cache.composite_cache, &hk, &chv);
-}
-
-static void free_list_add(ASS_Renderer *render_priv, void *object)
-{
-    if (!render_priv->free_head) {
-        render_priv->free_head = calloc(1, sizeof(FreeList));
-        render_priv->free_head->object = object;
-        render_priv->free_tail = render_priv->free_head;
-    } else {
-        FreeList *l = calloc(1, sizeof(FreeList));
-        l->object = object;
-        render_priv->free_tail->next = l;
-        render_priv->free_tail = render_priv->free_tail->next;
-    }
-}
-
-/**
- * Iterate through a list of bitmaps and blend with clip vector, if
- * applicable. The blended bitmaps are added to a free list which is freed
- * at the start of a new frame.
- */
-static void blend_vector_clip(ASS_Renderer *render_priv,
-                              ASS_Image *head)
-{
-    FT_Outline *outline;
-    Bitmap *clip_bm = NULL;
-    ASS_Image *cur;
-    ASS_Drawing *drawing = render_priv->state.clip_drawing;
-    BitmapHashKey key;
-    BitmapHashValue *val;
-
-    if (!drawing)
-        return;
-
-    // Try to get mask from cache
-    memset(&key, 0, sizeof(key));
-    key.type = BITMAP_CLIP;
-    key.u.clip.text = drawing->text;
-    val = ass_cache_get(render_priv->cache.bitmap_cache, &key);
-
-    if (val) {
-        clip_bm = val->bm;
-    } else {
-        BitmapHashValue v;
-
-        // Not found in cache, parse and rasterize it
-        outline = ass_drawing_parse(drawing, 1);
-        if (!outline) {
-            ass_msg(render_priv->library, MSGL_WARN,
-                    "Clip vector parsing failed. Skipping.");
-            goto blend_vector_error;
-        }
-
-        // We need to translate the clip according to screen borders
-        if (render_priv->settings.left_margin != 0 ||
-            render_priv->settings.top_margin != 0) {
-            FT_Vector trans;
-            trans.x = int_to_d6(render_priv->settings.left_margin);
-            trans.y = -int_to_d6(render_priv->settings.top_margin);
-            FT_Outline_Translate(outline, trans.x, trans.y);
-        }
-
-        ass_msg(render_priv->library, MSGL_DBG2,
-                "Parsed vector clip: scales (%f, %f) string [%s]\n",
-                drawing->scale_x, drawing->scale_y, drawing->text);
-
-        clip_bm = outline_to_bitmap(render_priv->library,
-                render_priv->ftlibrary, outline, 0);
-        if (clip_bm == NULL) {
-            ass_msg(render_priv->library, MSGL_WARN,
-                "Clip vector rasterization failed. Skipping.");
-        }
-
-        // Add to cache
-        memset(&v, 0, sizeof(v));
-        key.u.clip.text = strdup(drawing->text);
-        v.bm = clip_bm;
-        ass_cache_put(render_priv->cache.bitmap_cache, &key, &v);
-    }
-blend_vector_error:
-
-    if (!clip_bm) goto blend_vector_exit;
-
-    // Iterate through bitmaps and blend/clip them
-    for (cur = head; cur; cur = cur->next) {
-        int left, top, right, bottom, apos, bpos, y, x, w, h;
-        int ax, ay, aw, ah, as;
-        int bx, by, bw, bh, bs;
-        int aleft, atop, bleft, btop;
-        unsigned char *abuffer, *bbuffer, *nbuffer;
-
-        abuffer = cur->bitmap;
-        bbuffer = clip_bm->buffer;
-        ax = cur->dst_x;
-        ay = cur->dst_y;
-        aw = cur->w;
-        ah = cur->h;
-        as = cur->stride;
-        bx = clip_bm->left;
-        by = clip_bm->top;
-        bw = clip_bm->w;
-        bh = clip_bm->h;
-        bs = clip_bm->stride;
-
-        // Calculate overlap coordinates
-        left = (ax > bx) ? ax : bx;
-        top = (ay > by) ? ay : by;
-        right = ((ax + aw) < (bx + bw)) ? (ax + aw) : (bx + bw);
-        bottom = ((ay + ah) < (by + bh)) ? (ay + ah) : (by + bh);
-        aleft = left - ax;
-        atop = top - ay;
-        w = right - left;
-        h = bottom - top;
-        bleft = left - bx;
-        btop = top - by;
-
-        if (render_priv->state.clip_drawing_mode) {
-            // Inverse clip
-            if (ax + aw < bx || ay + ah < by || ax > bx + bw ||
-                ay > by + bh) {
-                continue;
-            }
-
-            // Allocate new buffer and add to free list
-            nbuffer = malloc(as * ah);
-            if (!nbuffer) goto blend_vector_exit;
-            free_list_add(render_priv, nbuffer);
-
-            // Blend together
-            memcpy(nbuffer, abuffer, as * (ah - 1) + aw);
-            for (y = 0; y < h; y++)
-                for (x = 0; x < w; x++) {
-                    apos = (atop + y) * as + aleft + x;
-                    bpos = (btop + y) * bs + bleft + x;
-                    nbuffer[apos] = FFMAX(0, abuffer[apos] - bbuffer[bpos]);
-                }
-        } else {
-            // Regular clip
-            if (ax + aw < bx || ay + ah < by || ax > bx + bw ||
-                ay > by + bh) {
-                cur->w = cur->h = 0;
-                continue;
-            }
-
-            // Allocate new buffer and add to free list
-            nbuffer = calloc(as, ah);
-            if (!nbuffer) goto blend_vector_exit;
-            free_list_add(render_priv, nbuffer);
-
-            // Blend together
-            for (y = 0; y < h; y++)
-                for (x = 0; x < w; x++) {
-                    apos = (atop + y) * as + aleft + x;
-                    bpos = (btop + y) * bs + bleft + x;
-                    nbuffer[apos] = (abuffer[apos] * bbuffer[bpos] + 255) >> 8;
-                }
-        }
-        cur->bitmap = nbuffer;
-    }
-
-blend_vector_exit:
-    ass_drawing_free(render_priv->state.clip_drawing);
-    render_priv->state.clip_drawing = 0;
-}
-
-/**
- * \brief Convert TextInfo struct to ASS_Image list
- * Splits glyphs in halves when needed (for \kf karaoke).
- */
-static ASS_Image *render_text(ASS_Renderer *render_priv, int dst_x, int dst_y)
-{
-    int pen_x, pen_y;
-    int i;
-    Bitmap *bm;
-    ASS_Image *head;
-    ASS_Image **tail = &head;
-    ASS_Image **last_tail = 0;
-    ASS_Image **here_tail = 0;
-    TextInfo *text_info = &render_priv->text_info;
-
-    for (i = 0; i < text_info->length; ++i) {
-        GlyphInfo *info = text_info->glyphs + i;
-        if ((info->symbol == 0) || (info->symbol == '\n') || !info->bm_s
-            || (info->shadow_x == 0 && info->shadow_y == 0) || info->skip)
-            continue;
-
-        while (info) {
-            if (!info->bm_s) {
-                info = info->next;
-                continue;
-            }
-
-            pen_x =
-                dst_x + (info->pos.x >> 6) +
-                (int) (info->shadow_x * render_priv->border_scale);
-            pen_y =
-                dst_y + (info->pos.y >> 6) +
-                (int) (info->shadow_y * render_priv->border_scale);
-            bm = info->bm_s;
-
-            here_tail = tail;
-            tail =
-                render_glyph(render_priv, bm, pen_x, pen_y, info->c[3], 0,
-                        1000000, tail);
-
-            if (last_tail && tail != here_tail && ((info->c[3] & 0xff) > 0))
-                render_overlap(render_priv, last_tail, here_tail);
-            last_tail = here_tail;
-
-            info = info->next;
-        }
-    }
-
-    last_tail = 0;
-    for (i = 0; i < text_info->length; ++i) {
-        GlyphInfo *info = text_info->glyphs + i;
-        if ((info->symbol == 0) || (info->symbol == '\n') || !info->bm_o
-            || info->skip)
-            continue;
-
-        while (info) {
-            if (!info->bm_o) {
-                info = info->next;
-                continue;
-            }
-
-            pen_x = dst_x + (info->pos.x >> 6);
-            pen_y = dst_y + (info->pos.y >> 6);
-            bm = info->bm_o;
-
-            if ((info->effect_type == EF_KARAOKE_KO)
-                    && (info->effect_timing <= (info->bbox.xMax >> 6))) {
-                // do nothing
-            } else {
-                here_tail = tail;
-                tail =
-                    render_glyph(render_priv, bm, pen_x, pen_y, info->c[2],
-                            0, 1000000, tail);
-                if (last_tail && tail != here_tail && ((info->c[2] & 0xff) > 0))
-                    render_overlap(render_priv, last_tail, here_tail);
-
-                last_tail = here_tail;
-            }
-            info = info->next;
-        }
-    }
-
-    for (i = 0; i < text_info->length; ++i) {
-        GlyphInfo *info = text_info->glyphs + i;
-        if ((info->symbol == 0) || (info->symbol == '\n') || !info->bm
-            || info->skip)
-            continue;
-
-        while (info) {
-            if (!info->bm) {
-                info = info->next;
-                continue;
-            }
-
-            pen_x = dst_x + (info->pos.x >> 6);
-            pen_y = dst_y + (info->pos.y >> 6);
-            bm = info->bm;
-
-            if ((info->effect_type == EF_KARAOKE)
-                    || (info->effect_type == EF_KARAOKE_KO)) {
-                if (info->effect_timing > (info->bbox.xMax >> 6))
-                    tail =
-                        render_glyph(render_priv, bm, pen_x, pen_y,
-                                info->c[0], 0, 1000000, tail);
-                else
-                    tail =
-                        render_glyph(render_priv, bm, pen_x, pen_y,
-                                info->c[1], 0, 1000000, tail);
-            } else if (info->effect_type == EF_KARAOKE_KF) {
-                tail =
-                    render_glyph(render_priv, bm, pen_x, pen_y, info->c[0],
-                            info->c[1], info->effect_timing, tail);
-            } else
-                tail =
-                    render_glyph(render_priv, bm, pen_x, pen_y, info->c[0],
-                            0, 1000000, tail);
-            info = info->next;
-        }
-    }
-
-    *tail = 0;
-    blend_vector_clip(render_priv, head);
-
-    return head;
-}
-
-static void compute_string_bbox(TextInfo *text, DBBox *bbox)
-{
-    int i;
-
-    if (text->length > 0) {
-        bbox->xMin = 32000;
-        bbox->xMax = -32000;
-        bbox->yMin = -1 * text->lines[0].asc + d6_to_double(text->glyphs[0].pos.y);
-        bbox->yMax = text->height - text->lines[0].asc +
-                     d6_to_double(text->glyphs[0].pos.y);
-
-        for (i = 0; i < text->length; ++i) {
-            GlyphInfo *info = text->glyphs + i;
-            if (info->skip) continue;
-            while (info) {
-                double s = d6_to_double(info->pos.x);
-                double e = s + d6_to_double(info->advance.x);
-                bbox->xMin = FFMIN(bbox->xMin, s);
-                bbox->xMax = FFMAX(bbox->xMax, e);
-                info = info->next;
-            }
-        }
-    } else
-        bbox->xMin = bbox->xMax = bbox->yMin = bbox->yMax = 0.;
-}
-
-/**
- * \brief partially reset render_context to style values
- * Works like {\r}: resets some style overrides
- */
-void reset_render_context(ASS_Renderer *render_priv)
-{
-    render_priv->state.c[0] = render_priv->state.style->PrimaryColour;
-    render_priv->state.c[1] = render_priv->state.style->SecondaryColour;
-    render_priv->state.c[2] = render_priv->state.style->OutlineColour;
-    render_priv->state.c[3] = render_priv->state.style->BackColour;
-    render_priv->state.flags =
-        (render_priv->state.style->Underline ? DECO_UNDERLINE : 0) |
-        (render_priv->state.style->StrikeOut ? DECO_STRIKETHROUGH : 0);
-    render_priv->state.font_size = render_priv->state.style->FontSize;
-
-    free(render_priv->state.family);
-    render_priv->state.family = NULL;
-    render_priv->state.family = strdup(render_priv->state.style->FontName);
-    render_priv->state.treat_family_as_pattern =
-        render_priv->state.style->treat_fontname_as_pattern;
-    render_priv->state.bold = render_priv->state.style->Bold;
-    render_priv->state.italic = render_priv->state.style->Italic;
-    update_font(render_priv);
-
-    change_border(render_priv, -1., -1.);
-    render_priv->state.scale_x = render_priv->state.style->ScaleX;
-    render_priv->state.scale_y = render_priv->state.style->ScaleY;
-    render_priv->state.hspacing = render_priv->state.style->Spacing;
-    render_priv->state.be = 0;
-    render_priv->state.blur = 0.0;
-    render_priv->state.shadow_x = render_priv->state.style->Shadow;
-    render_priv->state.shadow_y = render_priv->state.style->Shadow;
-    render_priv->state.frx = render_priv->state.fry = 0.;
-    render_priv->state.frz = M_PI * render_priv->state.style->Angle / 180.;
-    render_priv->state.fax = render_priv->state.fay = 0.;
-    render_priv->state.wrap_style = render_priv->track->WrapStyle;
-    render_priv->state.font_encoding = render_priv->state.style->Encoding;
-}
-
-/**
- * \brief Start new event. Reset render_priv->state.
- */
-static void
-init_render_context(ASS_Renderer *render_priv, ASS_Event *event)
-{
-    render_priv->state.event = event;
-    render_priv->state.style = render_priv->track->styles + event->Style;
-    render_priv->state.parsed_tags = 0;
-
-    reset_render_context(render_priv);
-
-    render_priv->state.evt_type = EVENT_NORMAL;
-    render_priv->state.alignment = render_priv->state.style->Alignment;
-    render_priv->state.pos_x = 0;
-    render_priv->state.pos_y = 0;
-    render_priv->state.org_x = 0;
-    render_priv->state.org_y = 0;
-    render_priv->state.have_origin = 0;
-    render_priv->state.clip_x0 = 0;
-    render_priv->state.clip_y0 = 0;
-    render_priv->state.clip_x1 = render_priv->track->PlayResX;
-    render_priv->state.clip_y1 = render_priv->track->PlayResY;
-    render_priv->state.clip_mode = 0;
-    render_priv->state.detect_collisions = 1;
-    render_priv->state.fade = 0;
-    render_priv->state.drawing_mode = 0;
-    render_priv->state.effect_type = EF_NONE;
-    render_priv->state.effect_timing = 0;
-    render_priv->state.effect_skip_timing = 0;
-    render_priv->state.bm_run_id = 0;
-    ass_drawing_free(render_priv->state.drawing);
-    render_priv->state.drawing = ass_drawing_new(render_priv->library,
-            render_priv->ftlibrary);
-
-    apply_transition_effects(render_priv, event);
-}
-
-static void free_render_context(ASS_Renderer *render_priv)
-{
-    free(render_priv->state.family);
-    ass_drawing_free(render_priv->state.drawing);
-
-    render_priv->state.family = NULL;
-    render_priv->state.drawing = NULL;
-}
-
-/*
- * Replace the outline of a glyph by a contour which makes up a simple
- * opaque rectangle.
- */
-static void draw_opaque_box(ASS_Renderer *render_priv, int asc, int desc,
-                            FT_Outline *ol, FT_Vector advance, int sx, int sy)
-{
-    int i;
-    int adv = advance.x;
-    double scale_y = render_priv->state.scale_y;
-    double scale_x = render_priv->state.scale_x;
-    FT_Vector points[4];
-
-    // to avoid gaps
-    sx = FFMAX(64, sx);
-    sy = FFMAX(64, sy);
-
-    // Emulate the WTFish behavior of VSFilter, i.e. double-scale
-    // the sizes of the opaque box.
-    adv += double_to_d6(render_priv->state.hspacing * render_priv->font_scale
-                        * scale_x);
-    adv *= scale_x;
-    sx *= scale_x;
-    sy *= scale_y;
-    desc *= scale_y;
-    desc += asc * (scale_y - 1.0);
-
-    points[0].x = -sx;
-    points[0].y = asc + sy;
-    points[1].x = adv + sx;
-    points[1].y = asc + sy;
-    points[2].x = adv + sx;
-    points[2].y = -desc - sy;
-    points[3].x = -sx;
-    points[3].y = -desc - sy;
-
-    FT_Outline_New(render_priv->ftlibrary, 4, 1, ol);
-
-    ol->n_points = ol->n_contours = 0;
-    for (i = 0; i < 4; i++) {
-        ol->points[ol->n_points] = points[i];
-        ol->tags[ol->n_points++] = 1;
-    }
-    ol->contours[ol->n_contours++] = ol->n_points - 1;
-}
-
-/*
- * Stroke an outline glyph in x/y direction.  Applies various fixups to get
- * around limitations of the FreeType stroker.
- */
-static void stroke_outline(ASS_Renderer *render_priv, FT_Outline *outline,
-                           int sx, int sy)
-{
-    if (sx <= 0 && sy <= 0)
-        return;
-
-    fix_freetype_stroker(outline, sx, sy);
-
-    // Borders are equal; use the regular stroker
-    if (sx == sy && render_priv->state.stroker) {
-        int error;
-        unsigned n_points, n_contours;
-
-        FT_StrokerBorder border = FT_Outline_GetOutsideBorder(outline);
-        error = FT_Stroker_ParseOutline(render_priv->state.stroker, outline, 0);
-        if (error) {
-            ass_msg(render_priv->library, MSGL_WARN,
-                    "FT_Stroker_ParseOutline failed, error: %d", error);
-        }
-        error = FT_Stroker_GetBorderCounts(render_priv->state.stroker, border,
-                &n_points, &n_contours);
-        if (error) {
-            ass_msg(render_priv->library, MSGL_WARN,
-                    "FT_Stroker_GetBorderCounts failed, error: %d", error);
-        }
-        FT_Outline_Done(render_priv->ftlibrary, outline);
-        FT_Outline_New(render_priv->ftlibrary, n_points, n_contours, outline);
-        outline->n_points = outline->n_contours = 0;
-        FT_Stroker_ExportBorder(render_priv->state.stroker, border, outline);
-
-    // "Stroke" with the outline emboldener in two passes.
-    // The outlines look uglier, but the emboldening never adds any points
-    } else {
-        int i;
-        FT_Outline nol;
-
-        FT_Outline_New(render_priv->ftlibrary, outline->n_points,
-                       outline->n_contours, &nol);
-        FT_Outline_Copy(outline, &nol);
-
-        FT_Outline_Embolden(outline, sx * 2);
-        FT_Outline_Translate(outline, -sx, -sx);
-        FT_Outline_Embolden(&nol, sy * 2);
-        FT_Outline_Translate(&nol, -sy, -sy);
-
-        for (i = 0; i < outline->n_points; i++)
-            outline->points[i].y = nol.points[i].y;
-
-        FT_Outline_Done(render_priv->ftlibrary, &nol);
-    }
-}
-
-/**
- * \brief Prepare glyph hash
- */
-static void
-fill_glyph_hash(ASS_Renderer *priv, OutlineHashKey *outline_key,
-                GlyphInfo *info)
-{
-    if (info->drawing) {
-        DrawingHashKey *key = &outline_key->u.drawing;
-        outline_key->type = OUTLINE_DRAWING;
-        key->scale_x = double_to_d16(info->scale_x);
-        key->scale_y = double_to_d16(info->scale_y);
-        key->outline.x = double_to_d16(info->border_x);
-        key->outline.y = double_to_d16(info->border_y);
-        key->border_style = priv->state.style->BorderStyle;
-        key->hash = info->drawing->hash;
-        key->text = info->drawing->text;
-        key->pbo = info->drawing->pbo;
-        key->scale = info->drawing->scale;
-    } else {
-        GlyphHashKey *key = &outline_key->u.glyph;
-        outline_key->type = OUTLINE_GLYPH;
-        key->font = info->font;
-        key->size = info->font_size;
-        key->face_index = info->face_index;
-        key->glyph_index = info->glyph_index;
-        key->bold = info->bold;
-        key->italic = info->italic;
-        key->scale_x = double_to_d16(info->scale_x);
-        key->scale_y = double_to_d16(info->scale_y);
-        key->outline.x = double_to_d16(info->border_x);
-        key->outline.y = double_to_d16(info->border_y);
-        key->flags = info->flags;
-        key->border_style = priv->state.style->BorderStyle;
-    }
-}
-
-/**
- * \brief Get normal and outline (border) glyphs
- * \param info out: struct filled with extracted data
- * Tries to get both glyphs from cache.
- * If they can't be found, gets a glyph from font face, generates outline with FT_Stroker,
- * and add them to cache.
- * The glyphs are returned in info->glyph and info->outline_glyph
- */
-static void
-get_outline_glyph(ASS_Renderer *priv, GlyphInfo *info)
-{
-    OutlineHashValue *val;
-    OutlineHashKey key;
-
-    memset(&info->hash_key, 0, sizeof(key));
-
-    fill_glyph_hash(priv, &key, info);
-    val = ass_cache_get(priv->cache.outline_cache, &key);
-
-    if (!val) {
-        OutlineHashValue v;
-        memset(&v, 0, sizeof(v));
-
-        if (info->drawing) {
-            ASS_Drawing *drawing = info->drawing;
-            ass_drawing_hash(drawing);
-            if(!ass_drawing_parse(drawing, 0))
-                return;
-            outline_copy(priv->ftlibrary, &drawing->outline,
-                    &v.outline);
-            v.advance.x = drawing->advance.x;
-            v.advance.y = drawing->advance.y;
-            v.asc = drawing->asc;
-            v.desc = drawing->desc;
-            key.u.drawing.text = strdup(drawing->text);
-        } else {
-            FT_Glyph glyph;
-            ass_face_set_size(info->font->faces[info->face_index],
-                    info->font_size);
-            ass_font_set_transform(info->font, info->scale_x,
-                    info->scale_y, NULL);
-            glyph =
-                ass_font_get_glyph(priv->fontconfig_priv, info->font,
-                        info->symbol, info->face_index, info->glyph_index,
-                        priv->settings.hinting, info->flags);
-            if (glyph != NULL) {
-                outline_copy(priv->ftlibrary,
-                        &((FT_OutlineGlyph)glyph)->outline, &v.outline);
-                if (priv->settings.shaper == ASS_SHAPING_SIMPLE) {
-                    v.advance.x = d16_to_d6(glyph->advance.x);
-                    v.advance.y = d16_to_d6(glyph->advance.y);
-                }
-                FT_Done_Glyph(glyph);
-                ass_font_get_asc_desc(info->font, info->symbol,
-                        &v.asc, &v.desc);
-                v.asc  *= info->scale_y;
-                v.desc *= info->scale_y;
-            }
-        }
-
-        if (!v.outline)
-            return;
-
-        FT_Outline_Get_CBox(v.outline, &v.bbox_scaled);
-
-        if (priv->state.style->BorderStyle == 3 &&
-                (info->border_x > 0 || info->border_y > 0)) {
-            FT_Vector advance;
-
-            v.border = calloc(1, sizeof(FT_Outline));
-
-            if (priv->settings.shaper == ASS_SHAPING_SIMPLE || info->drawing)
-                advance = v.advance;
-            else
-                advance = info->advance;
-
-            draw_opaque_box(priv, v.asc, v.desc, v.border, advance,
-                    double_to_d6(info->border_x * priv->border_scale),
-                    double_to_d6(info->border_y * priv->border_scale));
-
-        } else if ((info->border_x > 0 || info->border_y > 0)
-                && double_to_d6(info->scale_x) && double_to_d6(info->scale_y)) {
-
-            outline_copy(priv->ftlibrary, v.outline, &v.border);
-            stroke_outline(priv, v.border,
-                    double_to_d6(info->border_x * priv->border_scale),
-                    double_to_d6(info->border_y * priv->border_scale));
-        }
-
-        v.lib = priv->ftlibrary;
-        val = ass_cache_put(priv->cache.outline_cache, &key, &v);
-    }
-
-    info->hash_key.u.outline.outline = val;
-    info->outline = val->outline;
-    info->border = val->border;
-    info->bbox = val->bbox_scaled;
-    if (info->drawing || priv->settings.shaper == ASS_SHAPING_SIMPLE) {
-        info->cluster_advance.x = info->advance.x = val->advance.x;
-        info->cluster_advance.y = info->advance.y = val->advance.y;
-    }
-    info->asc = val->asc;
-    info->desc = val->desc;
-
-    ass_drawing_free(info->drawing);
-}
-
-/**
- * \brief Apply transformation to outline points of a glyph
- * Applies rotations given by frx, fry and frz and projects the points back
- * onto the screen plane.
- */
-static void
-transform_3d_points(FT_Vector shift, FT_Outline *outline, double frx, double fry,
-                    double frz, double fax, double fay, double scale,
-                    int yshift)
-{
-    double sx = sin(frx);
-    double sy = sin(fry);
-    double sz = sin(frz);
-    double cx = cos(frx);
-    double cy = cos(fry);
-    double cz = cos(frz);
-    FT_Vector *p = outline->points;
-    double x, y, z, xx, yy, zz;
-    int i, dist;
-
-    dist = 20000 * scale;
-    for (i = 0; i < outline->n_points; i++) {
-        x = (double) p[i].x + shift.x + (fax * (yshift - p[i].y));
-        y = (double) p[i].y + shift.y + (-fay * p[i].x);
-        z = 0.;
-
-        xx = x * cz + y * sz;
-        yy = -(x * sz - y * cz);
-        zz = z;
-
-        x = xx;
-        y = yy * cx + zz * sx;
-        z = yy * sx - zz * cx;
-
-        xx = x * cy + z * sy;
-        yy = y;
-        zz = x * sy - z * cy;
-
-        zz = FFMAX(zz, 1000 - dist);
-
-        x = (xx * dist) / (zz + dist);
-        y = (yy * dist) / (zz + dist);
-        p[i].x = x - shift.x + 0.5;
-        p[i].y = y - shift.y + 0.5;
-    }
-}
-
-/**
- * \brief Apply 3d transformation to several objects
- * \param shift FreeType vector
- * \param glyph FreeType glyph
- * \param glyph2 FreeType glyph
- * \param frx x-axis rotation angle
- * \param fry y-axis rotation angle
- * \param frz z-axis rotation angle
- * Rotates both glyphs by frx, fry and frz. Shift vector is added before rotation and subtracted after it.
- */
-static void
-transform_3d(FT_Vector shift, FT_Outline *outline, FT_Outline *border,
-             double frx, double fry, double frz, double fax, double fay,
-             double scale, int yshift)
-{
-    frx = -frx;
-    frz = -frz;
-    if (frx != 0. || fry != 0. || frz != 0. || fax != 0. || fay != 0.) {
-        if (outline)
-            transform_3d_points(shift, outline, frx, fry, frz,
-                                fax, fay, scale, yshift);
-
-        if (border)
-            transform_3d_points(shift, border, frx, fry, frz,
-                                fax, fay, scale, yshift);
-    }
-}
-
-/**
- * \brief Get bitmaps for a glyph
- * \param info glyph info
- * Tries to get glyph bitmaps from bitmap cache.
- * If they can't be found, they are generated by rotating and rendering the glyph.
- * After that, bitmaps are added to the cache.
- * They are returned in info->bm (glyph), info->bm_o (outline) and info->bm_s (shadow).
- */
-static void
-get_bitmap_glyph(ASS_Renderer *render_priv, GlyphInfo *info)
-{
-    BitmapHashValue *val;
-    OutlineBitmapHashKey *key = &info->hash_key.u.outline;
-
-    if (!info->outline || info->symbol == '\n' || info->symbol == 0 || info->skip)
-        return;
-
-    val = ass_cache_get(render_priv->cache.bitmap_cache, &info->hash_key);
-
-    if (!val) {
-        FT_Vector shift;
-        BitmapHashValue hash_val;
-        int error;
-        double fax_scaled, fay_scaled;
-        FT_Outline *outline, *border;
-        double scale_x = render_priv->font_scale_x;
-        FT_Matrix m;
-
-        hash_val.bm = hash_val.bm_o = hash_val.bm_s = 0;
-
-        outline_copy(render_priv->ftlibrary, info->outline, &outline);
-        outline_copy(render_priv->ftlibrary, info->border, &border);
-
-        // calculating rotation shift vector (from rotation origin to the glyph basepoint)
-        shift.x = key->shift_x;
-        shift.y = key->shift_y;
-        fax_scaled = info->fax * render_priv->state.scale_x;
-        fay_scaled = info->fay * render_priv->state.scale_y;
-
-        // apply rotation
-        transform_3d(shift, outline, border,
-                info->frx, info->fry, info->frz, fax_scaled,
-                fay_scaled, render_priv->font_scale, info->asc);
-
-        // PAR correction scaling
-        m.xx = double_to_d16(scale_x);
-        m.xy = 0;
-        m.yx = 0;
-        m.yy = double_to_d16(1.0);
-
-        // subpixel shift
-        if (outline) {
-            if (scale_x != 1.0)
-                FT_Outline_Transform(outline, &m);
-            FT_Outline_Translate(outline, key->advance.x, -key->advance.y);
-        }
-        if (border) {
-            if (scale_x != 1.0)
-                FT_Outline_Transform(border, &m);
-            FT_Outline_Translate(border, key->advance.x, -key->advance.y);
-        }
-
-        // render glyph
-        error = outline_to_bitmap3(render_priv->library,
-                render_priv->synth_priv,
-                render_priv->ftlibrary,
-                outline, border,
-                &hash_val.bm, &hash_val.bm_o,
-                &hash_val.bm_s, info->be,
-                info->blur * render_priv->border_scale,
-                key->shadow_offset,
-                render_priv->state.style->BorderStyle);
-        if (error)
-            info->symbol = 0;
-
-        val = ass_cache_put(render_priv->cache.bitmap_cache, &info->hash_key,
-                &hash_val);
-
-        outline_free(render_priv->ftlibrary, outline);
-        outline_free(render_priv->ftlibrary, border);
-    }
-
-    info->bm = val->bm;
-    info->bm_o = val->bm_o;
-    info->bm_s = val->bm_s;
-
-    // VSFilter compatibility: invisible fill and no border?
-    // In this case no shadow is supposed to be rendered.
-    if (!info->border && (info->c[0] & 0xFF) == 0xFF)
-        info->bm_s = 0;
-}
-
-/**
- * This function goes through text_info and calculates text parameters.
- * The following text_info fields are filled:
- *   height
- *   lines[].height
- *   lines[].asc
- *   lines[].desc
- */
-static void measure_text(ASS_Renderer *render_priv)
-{
-    TextInfo *text_info = &render_priv->text_info;
-    int cur_line = 0;
-    double max_asc = 0., max_desc = 0.;
-    GlyphInfo *last = NULL;
-    int i;
-    int empty_line = 1;
-    text_info->height = 0.;
-    for (i = 0; i < text_info->length + 1; ++i) {
-        if ((i == text_info->length) || text_info->glyphs[i].linebreak) {
-            if (empty_line && cur_line > 0 && last && i < text_info->length) {
-                max_asc = d6_to_double(last->asc) / 2.0;
-                max_desc = d6_to_double(last->desc) / 2.0;
-            }
-            text_info->lines[cur_line].asc = max_asc;
-            text_info->lines[cur_line].desc = max_desc;
-            text_info->height += max_asc + max_desc;
-            cur_line++;
-            max_asc = max_desc = 0.;
-            empty_line = 1;
-        } else
-            empty_line = 0;
-        if (i < text_info->length) {
-            GlyphInfo *cur = text_info->glyphs + i;
-            if (d6_to_double(cur->asc) > max_asc)
-                max_asc = d6_to_double(cur->asc);
-            if (d6_to_double(cur->desc) > max_desc)
-                max_desc = d6_to_double(cur->desc);
-            if (cur->symbol != '\n' && cur->symbol != 0)
-                last = cur;
-        }
-    }
-    text_info->height +=
-        (text_info->n_lines -
-         1) * render_priv->settings.line_spacing;
-}
-
-/**
- * Mark extra whitespace for later removal.
- */
-#define IS_WHITESPACE(x) ((x->symbol == ' ' || x->symbol == '\n') \
-                          && !x->linebreak)
-static void trim_whitespace(ASS_Renderer *render_priv)
-{
-    int i, j;
-    GlyphInfo *cur;
-    TextInfo *ti = &render_priv->text_info;
-
-    // Mark trailing spaces
-    i = ti->length - 1;
-    cur = ti->glyphs + i;
-    while (i && IS_WHITESPACE(cur)) {
-        cur->skip++;
-        cur = ti->glyphs + --i;
-    }
-
-    // Mark leading whitespace
-    i = 0;
-    cur = ti->glyphs;
-    while (i < ti->length && IS_WHITESPACE(cur)) {
-        cur->skip++;
-        cur = ti->glyphs + ++i;
-    }
-
-    // Mark all extraneous whitespace inbetween
-    for (i = 0; i < ti->length; ++i) {
-        cur = ti->glyphs + i;
-        if (cur->linebreak) {
-            // Mark whitespace before
-            j = i - 1;
-            cur = ti->glyphs + j;
-            while (j && IS_WHITESPACE(cur)) {
-                cur->skip++;
-                cur = ti->glyphs + --j;
-            }
-            // A break itself can contain a whitespace, too
-            cur = ti->glyphs + i;
-            if (cur->symbol == ' ') {
-                cur->skip++;
-                // Mark whitespace after
-                j = i + 1;
-                cur = ti->glyphs + j;
-                while (j < ti->length && IS_WHITESPACE(cur)) {
-                    cur->skip++;
-                    cur = ti->glyphs + ++j;
-                }
-                i = j - 1;
-            }
-        }
-    }
-}
-#undef IS_WHITESPACE
-
-/**
- * \brief rearrange text between lines
- * \param max_text_width maximal text line width in pixels
- * The algo is similar to the one in libvo/sub.c:
- * 1. Place text, wrapping it when current line is full
- * 2. Try moving words from the end of a line to the beginning of the next one while it reduces
- * the difference in lengths between this two lines.
- * The result may not be optimal, but usually is good enough.
- *
- * FIXME: implement style 0 and 3 correctly
- */
-static void
-wrap_lines_smart(ASS_Renderer *render_priv, double max_text_width)
-{
-    int i;
-    GlyphInfo *cur, *s1, *e1, *s2, *s3, *w;
-    int last_space;
-    int break_type;
-    int exit;
-    double pen_shift_x;
-    double pen_shift_y;
-    int cur_line;
-    int run_offset;
-    TextInfo *text_info = &render_priv->text_info;
-
-    last_space = -1;
-    text_info->n_lines = 1;
-    break_type = 0;
-    s1 = text_info->glyphs;     // current line start
-    for (i = 0; i < text_info->length; ++i) {
-        int break_at = -1;
-        double s_offset, len;
-        cur = text_info->glyphs + i;
-        s_offset = d6_to_double(s1->bbox.xMin + s1->pos.x);
-        len = d6_to_double(cur->bbox.xMax + cur->pos.x) - s_offset;
-
-        if (cur->symbol == '\n') {
-            break_type = 2;
-            break_at = i;
-            ass_msg(render_priv->library, MSGL_DBG2,
-                    "forced line break at %d", break_at);
-        } else if (cur->symbol == ' ') {
-            last_space = i;
-        } else if (len >= max_text_width
-                   && (render_priv->state.wrap_style != 2)) {
-            break_type = 1;
-            break_at = last_space;
-            if (break_at >= 0)
-                ass_msg(render_priv->library, MSGL_DBG2, "line break at %d",
-                        break_at);
-        }
-
-        if (break_at != -1) {
-            // need to use one more line
-            // marking break_at+1 as start of a new line
-            int lead = break_at + 1;    // the first symbol of the new line
-            if (text_info->n_lines >= text_info->max_lines) {
-                // Raise maximum number of lines
-                text_info->max_lines *= 2;
-                text_info->lines = realloc(text_info->lines,
-                                           sizeof(LineInfo) *
-                                           text_info->max_lines);
-            }
-            if (lead < text_info->length) {
-                text_info->glyphs[lead].linebreak = break_type;
-                last_space = -1;
-                s1 = text_info->glyphs + lead;
-                s_offset = d6_to_double(s1->bbox.xMin + s1->pos.x);
-                text_info->n_lines++;
-            }
-        }
-    }
-#define DIFF(x,y) (((x) < (y)) ? (y - x) : (x - y))
-    exit = 0;
-    while (!exit && render_priv->state.wrap_style != 1) {
-        exit = 1;
-        w = s3 = text_info->glyphs;
-        s1 = s2 = 0;
-        for (i = 0; i <= text_info->length; ++i) {
-            cur = text_info->glyphs + i;
-            if ((i == text_info->length) || cur->linebreak) {
-                s1 = s2;
-                s2 = s3;
-                s3 = cur;
-                if (s1 && (s2->linebreak == 1)) {       // have at least 2 lines, and linebreak is 'soft'
-                    double l1, l2, l1_new, l2_new;
-
-                    w = s2;
-                    do {
-                        --w;
-                    } while ((w > s1) && (w->symbol == ' '));
-                    while ((w > s1) && (w->symbol != ' ')) {
-                        --w;
-                    }
-                    e1 = w;
-                    while ((e1 > s1) && (e1->symbol == ' ')) {
-                        --e1;
-                    }
-                    if (w->symbol == ' ')
-                        ++w;
-
-                    l1 = d6_to_double(((s2 - 1)->bbox.xMax + (s2 - 1)->pos.x) -
-                        (s1->bbox.xMin + s1->pos.x));
-                    l2 = d6_to_double(((s3 - 1)->bbox.xMax + (s3 - 1)->pos.x) -
-                        (s2->bbox.xMin + s2->pos.x));
-                    l1_new = d6_to_double(
-                        (e1->bbox.xMax + e1->pos.x) -
-                        (s1->bbox.xMin + s1->pos.x));
-                    l2_new = d6_to_double(
-                        ((s3 - 1)->bbox.xMax + (s3 - 1)->pos.x) -
-                        (w->bbox.xMin + w->pos.x));
-
-                    if (DIFF(l1_new, l2_new) < DIFF(l1, l2)) {
-                        w->linebreak = 1;
-                        s2->linebreak = 0;
-                        exit = 0;
-                    }
-                }
-            }
-            if (i == text_info->length)
-                break;
-        }
-
-    }
-    assert(text_info->n_lines >= 1);
-#undef DIFF
-
-    measure_text(render_priv);
-    trim_whitespace(render_priv);
-
-    pen_shift_x = 0.;
-    pen_shift_y = 0.;
-    cur_line = 1;
-    run_offset = 0;
-
-    i = 0;
-    cur = text_info->glyphs + i;
-    while (i < text_info->length && cur->skip)
-        cur = text_info->glyphs + ++i;
-    pen_shift_x = d6_to_double(-cur->pos.x);
-
-    for (i = 0; i < text_info->length; ++i) {
-        cur = text_info->glyphs + i;
-        if (cur->linebreak) {
-            double height;
-            while (i < text_info->length && cur->skip && cur->symbol != '\n')
-                cur = text_info->glyphs + ++i;
-            height =
-                text_info->lines[cur_line - 1].desc +
-                text_info->lines[cur_line].asc;
-            text_info->lines[cur_line - 1].len = i -
-                text_info->lines[cur_line - 1].offset;
-            text_info->lines[cur_line].offset = i;
-            cur_line++;
-            run_offset++;
-            pen_shift_x = d6_to_double(-cur->pos.x);
-            pen_shift_y += height + render_priv->settings.line_spacing;
-            ass_msg(render_priv->library, MSGL_DBG2,
-                   "shifting from %d to %d by (%f, %f)", i,
-                   text_info->length - 1, pen_shift_x, pen_shift_y);
-        }
-        cur->bm_run_id += run_offset;
-        cur->pos.x += double_to_d6(pen_shift_x);
-        cur->pos.y += double_to_d6(pen_shift_y);
-    }
-    text_info->lines[cur_line - 1].len =
-        text_info->length - text_info->lines[cur_line - 1].offset;
-
-#if 0
-    // print line info
-    for (i = 0; i < text_info->n_lines; i++) {
-        printf("line %d offset %d length %d\n", i, text_info->lines[i].offset,
-                text_info->lines[i].len);
-    }
-#endif
-}
-
-/**
- * \brief Calculate base point for positioning and rotation
- * \param bbox text bbox
- * \param alignment alignment
- * \param bx, by out: base point coordinates
- */
-static void get_base_point(DBBox *bbox, int alignment, double *bx, double *by)
-{
-    const int halign = alignment & 3;
-    const int valign = alignment & 12;
-    if (bx)
-        switch (halign) {
-        case HALIGN_LEFT:
-            *bx = bbox->xMin;
-            break;
-        case HALIGN_CENTER:
-            *bx = (bbox->xMax + bbox->xMin) / 2.0;
-            break;
-        case HALIGN_RIGHT:
-            *bx = bbox->xMax;
-            break;
-        }
-    if (by)
-        switch (valign) {
-        case VALIGN_TOP:
-            *by = bbox->yMin;
-            break;
-        case VALIGN_CENTER:
-            *by = (bbox->yMax + bbox->yMin) / 2.0;
-            break;
-        case VALIGN_SUB:
-            *by = bbox->yMax;
-            break;
-        }
-}
-
-/**
- * Prepare bitmap hash key of a glyph
- */
-static void
-fill_bitmap_hash(ASS_Renderer *priv, GlyphInfo *info,
-                 OutlineBitmapHashKey *hash_key)
-{
-    hash_key->frx = rot_key(info->frx);
-    hash_key->fry = rot_key(info->fry);
-    hash_key->frz = rot_key(info->frz);
-    hash_key->fax = double_to_d16(info->fax);
-    hash_key->fay = double_to_d16(info->fay);
-    hash_key->be = info->be;
-    hash_key->blur = info->blur;
-    hash_key->shadow_offset.x = double_to_d6(
-            info->shadow_x * priv->border_scale -
-            (int) (info->shadow_x * priv->border_scale));
-    hash_key->shadow_offset.y = double_to_d6(
-            info->shadow_y * priv->border_scale -
-            (int) (info->shadow_y * priv->border_scale));
-}
-
-/**
- * \brief Main ass rendering function, glues everything together
- * \param event event to render
- * \param event_images struct containing resulting images, will also be initialized
- * Process event, appending resulting ASS_Image's to images_root.
- */
-static int
-ass_render_event(ASS_Renderer *render_priv, ASS_Event *event,
-                 EventImages *event_images)
-{
-    char *p;
-    FT_UInt previous;
-    FT_UInt num_glyphs;
-    FT_Vector pen;
-    unsigned code;
-    DBBox bbox;
-    int i, j;
-    int MarginL, MarginR, MarginV;
-    int last_break;
-    int alignment, halign, valign;
-    double device_x = 0;
-    double device_y = 0;
-    TextInfo *text_info = &render_priv->text_info;
-    GlyphInfo *glyphs = render_priv->text_info.glyphs;
-    ASS_Drawing *drawing;
-    double max_text_width = 0;
-    FriBidiStrIndex *cmap = NULL;
-    int lineno = 1;
-    int left = 0;
-
-    if (event->Style >= render_priv->track->n_styles) {
-        ass_msg(render_priv->library, MSGL_WARN, "No style found");
-        return 1;
-    }
-    if (!event->Text) {
-        ass_msg(render_priv->library, MSGL_WARN, "Empty event");
-        return 1;
-    }
-
-    init_render_context(render_priv, event);
-
-    drawing = render_priv->state.drawing;
-    text_info->length = 0;
-    num_glyphs = 0;
-    p = event->Text;
-
-    // Event parsing.
-    while (1) {
-        // get next char, executing style override
-        // this affects render_context
-        do {
-            code = get_next_char(render_priv, &p);
-            if (render_priv->state.drawing_mode && code)
-                ass_drawing_add_char(drawing, (char) code);
-        } while (code && render_priv->state.drawing_mode);      // skip everything in drawing mode
-
-        if (text_info->length >= text_info->max_glyphs) {
-            // Raise maximum number of glyphs
-            text_info->max_glyphs *= 2;
-            text_info->glyphs = glyphs =
-                realloc(text_info->glyphs,
-                        sizeof(GlyphInfo) * text_info->max_glyphs);
-        }
-
-        // Clear current GlyphInfo
-        memset(&glyphs[text_info->length], 0, sizeof(GlyphInfo));
-
-        // Parse drawing
-        if (drawing->i) {
-            drawing->scale_x = render_priv->state.scale_x *
-                                     render_priv->font_scale;
-            drawing->scale_y = render_priv->state.scale_y *
-                                     render_priv->font_scale;
-            p--;
-            code = 0xfffc; // object replacement character
-            glyphs[text_info->length].drawing = drawing;
-        }
-
-        // face could have been changed in get_next_char
-        if (!render_priv->state.font) {
-            free_render_context(render_priv);
-            return 1;
-        }
-
-        if (code == 0)
-            break;
-
-        // Fill glyph information
-        glyphs[text_info->length].symbol = code;
-        glyphs[text_info->length].font = render_priv->state.font;
-        for (i = 0; i < 4; ++i) {
-            uint32_t clr = render_priv->state.c[i];
-            change_alpha(&clr,
-                         mult_alpha(_a(clr), render_priv->state.fade), 1.);
-            glyphs[text_info->length].c[i] = clr;
-        }
-        glyphs[text_info->length].effect_type = render_priv->state.effect_type;
-        glyphs[text_info->length].effect_timing =
-            render_priv->state.effect_timing;
-        glyphs[text_info->length].effect_skip_timing =
-            render_priv->state.effect_skip_timing;
-        glyphs[text_info->length].font_size = ensure_font_size(render_priv,
-                    render_priv->state.font_size * render_priv->font_scale);
-        glyphs[text_info->length].be = render_priv->state.be;
-        glyphs[text_info->length].blur = render_priv->state.blur;
-        glyphs[text_info->length].shadow_x = render_priv->state.shadow_x;
-        glyphs[text_info->length].shadow_y = render_priv->state.shadow_y;
-        glyphs[text_info->length].scale_x= render_priv->state.scale_x;
-        glyphs[text_info->length].scale_y = render_priv->state.scale_y;
-        glyphs[text_info->length].border_x= render_priv->state.border_x;
-        glyphs[text_info->length].border_y = render_priv->state.border_y;
-        glyphs[text_info->length].bold = render_priv->state.bold;
-        glyphs[text_info->length].italic = render_priv->state.italic;
-        glyphs[text_info->length].flags = render_priv->state.flags;
-        glyphs[text_info->length].frx = render_priv->state.frx;
-        glyphs[text_info->length].fry = render_priv->state.fry;
-        glyphs[text_info->length].frz = render_priv->state.frz;
-        glyphs[text_info->length].fax = render_priv->state.fax;
-        glyphs[text_info->length].fay = render_priv->state.fay;
-        glyphs[text_info->length].bm_run_id = render_priv->state.bm_run_id;
-
-        if (glyphs[text_info->length].drawing) {
-            drawing = render_priv->state.drawing =
-                ass_drawing_new(render_priv->library, render_priv->ftlibrary);
-        }
-
-        text_info->length++;
-
-        render_priv->state.effect_type = EF_NONE;
-        render_priv->state.effect_timing = 0;
-        render_priv->state.effect_skip_timing = 0;
-
-    }
-
-    if (text_info->length == 0) {
-        // no valid symbols in the event; this can be smth like {comment}
-        free_render_context(render_priv);
-        return 1;
-    }
-
-    // Find shape runs and shape text
-    ass_shaper_set_base_direction(render_priv->shaper,
-            resolve_base_direction(render_priv->state.font_encoding));
-    ass_shaper_find_runs(render_priv->shaper, render_priv, glyphs,
-            text_info->length);
-    ass_shaper_shape(render_priv->shaper, text_info);
-
-    // Retrieve glyphs
-    for (i = 0; i < text_info->length; i++) {
-        GlyphInfo *info = glyphs + i;
-        while (info) {
-            get_outline_glyph(render_priv, info);
-            info = info->next;
-        }
-        info = glyphs + i;
-
-        // Add additional space after italic to non-italic style changes
-        if (i && glyphs[i - 1].italic && !info->italic) {
-            int back = i - 1;
-            GlyphInfo *og = &glyphs[back];
-            while (back && og->bbox.xMax - og->bbox.xMin == 0
-                    && og->italic)
-                og = &glyphs[--back];
-            if (og->bbox.xMax > og->cluster_advance.x)
-                og->cluster_advance.x = og->bbox.xMax;
-        }
-
-        // add horizontal letter spacing
-        info->cluster_advance.x += double_to_d6(render_priv->state.hspacing *
-                render_priv->font_scale * info->scale_x);
-
-        // add displacement for vertical shearing
-        info->cluster_advance.y += (info->fay * info->scale_y) * info->cluster_advance.x;
-
-    }
-
-    // Preliminary layout (for line wrapping)
-    previous = 0;
-    pen.x = 0;
-    pen.y = 0;
-    for (i = 0; i < text_info->length; i++) {
-        GlyphInfo *info = glyphs + i;
-        FT_Vector cluster_pen = pen;
-        while (info) {
-            info->pos.x = cluster_pen.x;
-            info->pos.y = cluster_pen.y;
-
-            cluster_pen.x += info->advance.x;
-            cluster_pen.y += info->advance.y;
-
-            // fill bitmap hash
-            info->hash_key.type = BITMAP_OUTLINE;
-            fill_bitmap_hash(render_priv, info, &info->hash_key.u.outline);
-
-            info = info->next;
-        }
-        info = glyphs + i;
-        pen.x += info->cluster_advance.x;
-        pen.y += info->cluster_advance.y;
-        previous = info->symbol;
-    }
-
-
-    // depends on glyph x coordinates being monotonous, so it should be done before line wrap
-    process_karaoke_effects(render_priv);
-
-    // alignments
-    alignment = render_priv->state.alignment;
-    halign = alignment & 3;
-    valign = alignment & 12;
-
-    MarginL =
-        (event->MarginL) ? event->MarginL : render_priv->state.style->MarginL;
-    MarginR =
-        (event->MarginR) ? event->MarginR : render_priv->state.style->MarginR;
-    MarginV =
-        (event->MarginV) ? event->MarginV : render_priv->state.style->MarginV;
-
-    // calculate max length of a line
-    max_text_width =
-        x2scr(render_priv, render_priv->track->PlayResX - MarginR) -
-        x2scr(render_priv, MarginL);
-
-    // wrap lines
-    if (render_priv->state.evt_type != EVENT_HSCROLL) {
-        // rearrange text in several lines
-        wrap_lines_smart(render_priv, max_text_width);
-    } else {
-        // no breaking or wrapping, everything in a single line
-        text_info->lines[0].offset = 0;
-        text_info->lines[0].len = text_info->length;
-        text_info->n_lines = 1;
-        measure_text(render_priv);
-    }
-
-    // Reorder text into visual order
-    cmap = ass_shaper_reorder(render_priv->shaper, text_info);
-
-    // Reposition according to the map
-    pen.x = 0;
-    pen.y = 0;
-    for (i = 0; i < text_info->length; i++) {
-        GlyphInfo *info = glyphs + cmap[i];
-        FT_Vector cluster_pen;
-        if (glyphs[i].linebreak) {
-            pen.x = 0;
-            pen.y += double_to_d6(text_info->lines[lineno-1].desc);
-            pen.y += double_to_d6(text_info->lines[lineno].asc);
-            pen.y += double_to_d6(render_priv->settings.line_spacing);
-            lineno++;
-        }
-        if (info->skip) continue;
-        cluster_pen = pen;
-        while (info) {
-            info->pos.x = info->offset.x + cluster_pen.x;
-            info->pos.y = info->offset.y + cluster_pen.y;
-            cluster_pen.x += info->advance.x;
-            cluster_pen.y += info->advance.y;
-            info = info->next;
-        }
-        info = glyphs + cmap[i];
-        pen.x += info->cluster_advance.x;
-        pen.y += info->cluster_advance.y;
-    }
-
-    // align lines
-    if (render_priv->state.evt_type != EVENT_HSCROLL) {
-        double width = 0;
-        last_break = -1;
-        for (i = 0; i <= text_info->length; ++i) {   // (text_info->length + 1) is the end of the last line
-            if ((i == text_info->length) || glyphs[i].linebreak) {
-                double shift = 0;
-                // remove letter spacing (which is included in cluster_advance)
-                if (i > 0)
-                    width -= render_priv->state.hspacing * render_priv->font_scale *
-                        glyphs[i-1].scale_x;
-                if (halign == HALIGN_LEFT) {    // left aligned, no action
-                    shift = 0;
-                } else if (halign == HALIGN_RIGHT) {    // right aligned
-                    shift = max_text_width - width;
-                } else if (halign == HALIGN_CENTER) {   // centered
-                    shift = (max_text_width - width) / 2.0;
-                }
-                for (j = last_break + 1; j < i; ++j) {
-                    GlyphInfo *info = glyphs + j;
-                    while (info) {
-                        info->pos.x += double_to_d6(shift);
-                        info = info->next;
-                    }
-                }
-                last_break = i - 1;
-                width = 0;
-            }
-            if (i < text_info->length && !glyphs[i].skip &&
-                    glyphs[i].symbol != '\n' && glyphs[i].symbol != 0) {
-                width += d6_to_double(glyphs[i].cluster_advance.x);
-            }
-        }
-    }
-
-    // determing text bounding box
-    compute_string_bbox(text_info, &bbox);
-
-    // determine device coordinates for text
-
-    // x coordinate for everything except positioned events
-    if (render_priv->state.evt_type == EVENT_NORMAL ||
-        render_priv->state.evt_type == EVENT_VSCROLL) {
-        device_x = x2scr(render_priv, MarginL);
-    } else if (render_priv->state.evt_type == EVENT_HSCROLL) {
-        if (render_priv->state.scroll_direction == SCROLL_RL)
-            device_x =
-                x2scr(render_priv,
-                      render_priv->track->PlayResX -
-                      render_priv->state.scroll_shift);
-        else if (render_priv->state.scroll_direction == SCROLL_LR)
-            device_x =
-                x2scr(render_priv,
-                      render_priv->state.scroll_shift) - (bbox.xMax -
-                                                          bbox.xMin);
-    }
-
-    // y coordinate for everything except positioned events
-    if (render_priv->state.evt_type == EVENT_NORMAL ||
-        render_priv->state.evt_type == EVENT_HSCROLL) {
-        if (valign == VALIGN_TOP) {     // toptitle
-            device_y =
-                y2scr_top(render_priv,
-                          MarginV) + text_info->lines[0].asc;
-        } else if (valign == VALIGN_CENTER) {   // midtitle
-            double scr_y =
-                y2scr(render_priv, render_priv->track->PlayResY / 2.0);
-            device_y = scr_y - (bbox.yMax + bbox.yMin) / 2.0;
-        } else {                // subtitle
-            double scr_y;
-            if (valign != VALIGN_SUB)
-                ass_msg(render_priv->library, MSGL_V,
-                       "Invalid valign, assuming 0 (subtitle)");
-            scr_y =
-                y2scr_sub(render_priv,
-                          render_priv->track->PlayResY - MarginV);
-            device_y = scr_y;
-            device_y -= text_info->height;
-            device_y += text_info->lines[0].asc;
-        }
-    } else if (render_priv->state.evt_type == EVENT_VSCROLL) {
-        if (render_priv->state.scroll_direction == SCROLL_TB)
-            device_y =
-                y2scr(render_priv,
-                      render_priv->state.clip_y0 +
-                      render_priv->state.scroll_shift) - (bbox.yMax -
-                                                          bbox.yMin);
-        else if (render_priv->state.scroll_direction == SCROLL_BT)
-            device_y =
-                y2scr(render_priv,
-                      render_priv->state.clip_y1 -
-                      render_priv->state.scroll_shift);
-    }
-
-    // positioned events are totally different
-    if (render_priv->state.evt_type == EVENT_POSITIONED) {
-        double base_x = 0;
-        double base_y = 0;
-        ass_msg(render_priv->library, MSGL_DBG2, "positioned event at %f, %f",
-               render_priv->state.pos_x, render_priv->state.pos_y);
-        get_base_point(&bbox, alignment, &base_x, &base_y);
-        device_x =
-            x2scr_pos(render_priv, render_priv->state.pos_x) - base_x;
-        device_y =
-            y2scr_pos(render_priv, render_priv->state.pos_y) - base_y;
-    }
-
-    // fix clip coordinates (they depend on alignment)
-    if (render_priv->state.evt_type == EVENT_NORMAL ||
-        render_priv->state.evt_type == EVENT_HSCROLL ||
-        render_priv->state.evt_type == EVENT_VSCROLL) {
-        render_priv->state.clip_x0 =
-            x2scr_scaled(render_priv, render_priv->state.clip_x0);
-        render_priv->state.clip_x1 =
-            x2scr_scaled(render_priv, render_priv->state.clip_x1);
-        if (valign == VALIGN_TOP) {
-            render_priv->state.clip_y0 =
-                y2scr_top(render_priv, render_priv->state.clip_y0);
-            render_priv->state.clip_y1 =
-                y2scr_top(render_priv, render_priv->state.clip_y1);
-        } else if (valign == VALIGN_CENTER) {
-            render_priv->state.clip_y0 =
-                y2scr(render_priv, render_priv->state.clip_y0);
-            render_priv->state.clip_y1 =
-                y2scr(render_priv, render_priv->state.clip_y1);
-        } else if (valign == VALIGN_SUB) {
-            render_priv->state.clip_y0 =
-                y2scr_sub(render_priv, render_priv->state.clip_y0);
-            render_priv->state.clip_y1 =
-                y2scr_sub(render_priv, render_priv->state.clip_y1);
-        }
-    } else if (render_priv->state.evt_type == EVENT_POSITIONED) {
-        render_priv->state.clip_x0 =
-            x2scr_pos_scaled(render_priv, render_priv->state.clip_x0);
-        render_priv->state.clip_x1 =
-            x2scr_pos_scaled(render_priv, render_priv->state.clip_x1);
-        render_priv->state.clip_y0 =
-            y2scr_pos(render_priv, render_priv->state.clip_y0);
-        render_priv->state.clip_y1 =
-            y2scr_pos(render_priv, render_priv->state.clip_y1);
-    }
-
-    // calculate rotation parameters
-    {
-        DVector center;
-
-        if (render_priv->state.have_origin) {
-            center.x = x2scr(render_priv, render_priv->state.org_x);
-            center.y = y2scr(render_priv, render_priv->state.org_y);
-        } else {
-            double bx = 0., by = 0.;
-            get_base_point(&bbox, alignment, &bx, &by);
-            center.x = device_x + bx;
-            center.y = device_y + by;
-        }
-
-        for (i = 0; i < text_info->length; ++i) {
-            GlyphInfo *info = glyphs + i;
-            while (info) {
-                OutlineBitmapHashKey *key = &info->hash_key.u.outline;
-
-                if (key->frx || key->fry || key->frz || key->fax || key->fay) {
-                    key->shift_x = info->pos.x + double_to_d6(device_x - center.x);
-                    key->shift_y = -(info->pos.y + double_to_d6(device_y - center.y));
-                } else {
-                    key->shift_x = 0;
-                    key->shift_y = 0;
-                }
-                info = info->next;
-            }
-        }
-    }
-
-    // convert glyphs to bitmaps
-    left = render_priv->settings.left_margin;
-    device_x = (device_x - left) * render_priv->font_scale_x + left;
-    for (i = 0; i < text_info->length; ++i) {
-        GlyphInfo *info = glyphs + i;
-        while (info) {
-            OutlineBitmapHashKey *key = &info->hash_key.u.outline;
-            info->pos.x *= render_priv->font_scale_x;
-            key->advance.x =
-                double_to_d6(device_x - (int) device_x +
-                        d6_to_double(info->pos.x & SUBPIXEL_MASK)) & ~SUBPIXEL_ACCURACY;
-            key->advance.y =
-                double_to_d6(device_y - (int) device_y +
-                        d6_to_double(info->pos.y & SUBPIXEL_MASK)) & ~SUBPIXEL_ACCURACY;
-            get_bitmap_glyph(render_priv, info);
-            info = info->next;
-        }
-    }
-
-    memset(event_images, 0, sizeof(*event_images));
-    event_images->top = device_y - text_info->lines[0].asc;
-    event_images->height = text_info->height;
-    event_images->left =
-        (device_x + bbox.xMin * render_priv->font_scale_x) + 0.5;
-    event_images->width =
-        (bbox.xMax - bbox.xMin) * render_priv->font_scale_x + 0.5;
-    event_images->detect_collisions = render_priv->state.detect_collisions;
-    event_images->shift_direction = (valign == VALIGN_TOP) ? 1 : -1;
-    event_images->event = event;
-    event_images->imgs = render_text(render_priv, (int) device_x, (int) device_y);
-
-    ass_shaper_cleanup(render_priv->shaper, text_info);
-    free_render_context(render_priv);
-
-    return 0;
-}
-
-/**
- * \brief deallocate image list
- * \param img list pointer
- */
-void ass_free_images(ASS_Image *img)
-{
-    while (img) {
-        ASS_Image *next = img->next;
-        free(img);
-        img = next;
-    }
-}
-
-/**
- * \brief Check cache limits and reset cache if they are exceeded
- */
-static void check_cache_limits(ASS_Renderer *priv, CacheStore *cache)
-{
-    if (ass_cache_empty(cache->bitmap_cache, cache->bitmap_max_size)) {
-        ass_cache_empty(cache->composite_cache, 0);
-        ass_free_images(priv->prev_images_root);
-        priv->prev_images_root = 0;
-    }
-    if (ass_cache_empty(cache->outline_cache, cache->glyph_max)) {
-        ass_cache_empty(cache->bitmap_cache, 0);
-        ass_cache_empty(cache->composite_cache, 0);
-        ass_free_images(priv->prev_images_root);
-        priv->prev_images_root = 0;
-    }
-}
-
-/**
- * \brief Start a new frame
- */
-static int
-ass_start_frame(ASS_Renderer *render_priv, ASS_Track *track,
-                long long now)
-{
-    ASS_Settings *settings_priv = &render_priv->settings;
-
-    if (!render_priv->settings.frame_width
-        && !render_priv->settings.frame_height)
-        return 1;               // library not initialized
-
-    if (render_priv->library != track->library)
-        return 1;
-
-    if (!render_priv->fontconfig_priv)
-        return 1;
-
-    free_list_clear(render_priv);
-
-    if (track->n_events == 0)
-        return 1;               // nothing to do
-
-    render_priv->track = track;
-    render_priv->time = now;
-
-    ass_lazy_track_init(render_priv->library, render_priv->track);
-
-    render_priv->font_scale = settings_priv->font_size_coeff *
-        render_priv->orig_height / render_priv->track->PlayResY;
-    if (render_priv->track->ScaledBorderAndShadow)
-        render_priv->border_scale =
-            ((double) render_priv->orig_height) /
-            render_priv->track->PlayResY;
-    else
-        render_priv->border_scale = 1.;
-
-    ass_shaper_set_kerning(render_priv->shaper, track->Kerning);
-    if (track->Language)
-        ass_shaper_set_language(render_priv->shaper, track->Language);
-    ass_shaper_set_level(render_priv->shaper, render_priv->settings.shaper);
-
-    // PAR correction
-    render_priv->font_scale_x = render_priv->settings.aspect /
-                                render_priv->settings.storage_aspect;
-
-    render_priv->prev_images_root = render_priv->images_root;
-    render_priv->images_root = 0;
-
-    check_cache_limits(render_priv, &render_priv->cache);
-
-    return 0;
-}
-
-static int cmp_event_layer(const void *p1, const void *p2)
-{
-    ASS_Event *e1 = ((EventImages *) p1)->event;
-    ASS_Event *e2 = ((EventImages *) p2)->event;
-    if (e1->Layer < e2->Layer)
-        return -1;
-    if (e1->Layer > e2->Layer)
-        return 1;
-    if (e1->ReadOrder < e2->ReadOrder)
-        return -1;
-    if (e1->ReadOrder > e2->ReadOrder)
-        return 1;
-    return 0;
-}
-
-static ASS_RenderPriv *get_render_priv(ASS_Renderer *render_priv,
-                                       ASS_Event *event)
-{
-    if (!event->render_priv)
-        event->render_priv = calloc(1, sizeof(ASS_RenderPriv));
-    if (render_priv->render_id != event->render_priv->render_id) {
-        memset(event->render_priv, 0, sizeof(ASS_RenderPriv));
-        event->render_priv->render_id = render_priv->render_id;
-    }
-
-    return event->render_priv;
-}
-
-static int overlap(Segment *s1, Segment *s2)
-{
-    if (s1->a >= s2->b || s2->a >= s1->b ||
-        s1->ha >= s2->hb || s2->ha >= s1->hb)
-        return 0;
-    return 1;
-}
-
-static int cmp_segment(const void *p1, const void *p2)
-{
-    return ((Segment *) p1)->a - ((Segment *) p2)->a;
-}
-
-static void
-shift_event(ASS_Renderer *render_priv, EventImages *ei, int shift)
-{
-    ASS_Image *cur = ei->imgs;
-    while (cur) {
-        cur->dst_y += shift;
-        // clip top and bottom
-        if (cur->dst_y < 0) {
-            int clip = -cur->dst_y;
-            cur->h -= clip;
-            cur->bitmap += clip * cur->stride;
-            cur->dst_y = 0;
-        }
-        if (cur->dst_y + cur->h >= render_priv->height) {
-            int clip = cur->dst_y + cur->h - render_priv->height;
-            cur->h -= clip;
-        }
-        if (cur->h <= 0) {
-            cur->h = 0;
-            cur->dst_y = 0;
-        }
-        cur = cur->next;
-    }
-    ei->top += shift;
-}
-
-// dir: 1 - move down
-//      -1 - move up
-static int fit_segment(Segment *s, Segment *fixed, int *cnt, int dir)
-{
-    int i;
-    int shift = 0;
-
-    if (dir == 1)               // move down
-        for (i = 0; i < *cnt; ++i) {
-            if (s->b + shift <= fixed[i].a || s->a + shift >= fixed[i].b ||
-                s->hb <= fixed[i].ha || s->ha >= fixed[i].hb)
-                continue;
-            shift = fixed[i].b - s->a;
-    } else                      // dir == -1, move up
-        for (i = *cnt - 1; i >= 0; --i) {
-            if (s->b + shift <= fixed[i].a || s->a + shift >= fixed[i].b ||
-                s->hb <= fixed[i].ha || s->ha >= fixed[i].hb)
-                continue;
-            shift = fixed[i].a - s->b;
-        }
-
-    fixed[*cnt].a = s->a + shift;
-    fixed[*cnt].b = s->b + shift;
-    fixed[*cnt].ha = s->ha;
-    fixed[*cnt].hb = s->hb;
-    (*cnt)++;
-    qsort(fixed, *cnt, sizeof(Segment), cmp_segment);
-
-    return shift;
-}
-
-static void
-fix_collisions(ASS_Renderer *render_priv, EventImages *imgs, int cnt)
-{
-    Segment *used = malloc(cnt * sizeof(*used));
-    int cnt_used = 0;
-    int i, j;
-
-    // fill used[] with fixed events
-    for (i = 0; i < cnt; ++i) {
-        ASS_RenderPriv *priv;
-        if (!imgs[i].detect_collisions)
-            continue;
-        priv = get_render_priv(render_priv, imgs[i].event);
-        if (priv->height > 0) { // it's a fixed event
-            Segment s;
-            s.a = priv->top;
-            s.b = priv->top + priv->height;
-            s.ha = priv->left;
-            s.hb = priv->left + priv->width;
-            if (priv->height != imgs[i].height) {       // no, it's not
-                ass_msg(render_priv->library, MSGL_WARN,
-                        "Event height has changed");
-                priv->top = 0;
-                priv->height = 0;
-                priv->left = 0;
-                priv->width = 0;
-            }
-            for (j = 0; j < cnt_used; ++j)
-                if (overlap(&s, used + j)) {    // no, it's not
-                    priv->top = 0;
-                    priv->height = 0;
-                    priv->left = 0;
-                    priv->width = 0;
-                }
-            if (priv->height > 0) {     // still a fixed event
-                used[cnt_used].a = priv->top;
-                used[cnt_used].b = priv->top + priv->height;
-                used[cnt_used].ha = priv->left;
-                used[cnt_used].hb = priv->left + priv->width;
-                cnt_used++;
-                shift_event(render_priv, imgs + i, priv->top - imgs[i].top);
-            }
-        }
-    }
-    qsort(used, cnt_used, sizeof(Segment), cmp_segment);
-
-    // try to fit other events in free spaces
-    for (i = 0; i < cnt; ++i) {
-        ASS_RenderPriv *priv;
-        if (!imgs[i].detect_collisions)
-            continue;
-        priv = get_render_priv(render_priv, imgs[i].event);
-        if (priv->height == 0) {        // not a fixed event
-            int shift;
-            Segment s;
-            s.a = imgs[i].top;
-            s.b = imgs[i].top + imgs[i].height;
-            s.ha = imgs[i].left;
-            s.hb = imgs[i].left + imgs[i].width;
-            shift = fit_segment(&s, used, &cnt_used, imgs[i].shift_direction);
-            if (shift)
-                shift_event(render_priv, imgs + i, shift);
-            // make it fixed
-            priv->top = imgs[i].top;
-            priv->height = imgs[i].height;
-            priv->left = imgs[i].left;
-            priv->width = imgs[i].width;
-        }
-
-    }
-
-    free(used);
-}
-
-/**
- * \brief compare two images
- * \param i1 first image
- * \param i2 second image
- * \return 0 if identical, 1 if different positions, 2 if different content
- */
-static int ass_image_compare(ASS_Image *i1, ASS_Image *i2)
-{
-    if (i1->w != i2->w)
-        return 2;
-    if (i1->h != i2->h)
-        return 2;
-    if (i1->stride != i2->stride)
-        return 2;
-    if (i1->color != i2->color)
-        return 2;
-    if (i1->bitmap != i2->bitmap)
-        return 2;
-    if (i1->dst_x != i2->dst_x)
-        return 1;
-    if (i1->dst_y != i2->dst_y)
-        return 1;
-    return 0;
-}
-
-/**
- * \brief compare current and previous image list
- * \param priv library handle
- * \return 0 if identical, 1 if different positions, 2 if different content
- */
-static int ass_detect_change(ASS_Renderer *priv)
-{
-    ASS_Image *img, *img2;
-    int diff;
-
-    img = priv->prev_images_root;
-    img2 = priv->images_root;
-    diff = 0;
-    while (img && diff < 2) {
-        ASS_Image *next, *next2;
-        next = img->next;
-        if (img2) {
-            int d = ass_image_compare(img, img2);
-            if (d > diff)
-                diff = d;
-            next2 = img2->next;
-        } else {
-            // previous list is shorter
-            diff = 2;
-            break;
-        }
-        img = next;
-        img2 = next2;
-    }
-
-    // is the previous list longer?
-    if (img2)
-        diff = 2;
-
-    return diff;
-}
-
-/**
- * \brief render a frame
- * \param priv library handle
- * \param track track
- * \param now current video timestamp (ms)
- * \param detect_change a value describing how the new images differ from the previous ones will be written here:
- *        0 if identical, 1 if different positions, 2 if different content.
- *        Can be NULL, in that case no detection is performed.
- */
-ASS_Image *ass_render_frame(ASS_Renderer *priv, ASS_Track *track,
-                            long long now, int *detect_change)
-{
-    int i, cnt, rc;
-    EventImages *last;
-    ASS_Image **tail;
-
-    // init frame
-    rc = ass_start_frame(priv, track, now);
-    if (rc != 0)
-        return 0;
-
-    // render events separately
-    cnt = 0;
-    for (i = 0; i < track->n_events; ++i) {
-        ASS_Event *event = track->events + i;
-        if ((event->Start <= now)
-            && (now < (event->Start + event->Duration))) {
-            if (cnt >= priv->eimg_size) {
-                priv->eimg_size += 100;
-                priv->eimg =
-                    realloc(priv->eimg,
-                            priv->eimg_size * sizeof(EventImages));
-            }
-            rc = ass_render_event(priv, event, priv->eimg + cnt);
-            if (!rc)
-                ++cnt;
-        }
-    }
-
-    // sort by layer
-    qsort(priv->eimg, cnt, sizeof(EventImages), cmp_event_layer);
-
-    // call fix_collisions for each group of events with the same layer
-    last = priv->eimg;
-    for (i = 1; i < cnt; ++i)
-        if (last->event->Layer != priv->eimg[i].event->Layer) {
-            fix_collisions(priv, last, priv->eimg + i - last);
-            last = priv->eimg + i;
-        }
-    if (cnt > 0)
-        fix_collisions(priv, last, priv->eimg + cnt - last);
-
-    // concat lists
-    tail = &priv->images_root;
-    for (i = 0; i < cnt; ++i) {
-        ASS_Image *cur = priv->eimg[i].imgs;
-        while (cur) {
-            *tail = cur;
-            tail = &cur->next;
-            cur = cur->next;
-        }
-    }
-
-    if (detect_change)
-        *detect_change = ass_detect_change(priv);
-
-    // free the previous image list
-    ass_free_images(priv->prev_images_root);
-    priv->prev_images_root = 0;
-
-    return priv->images_root;
-}
diff --git a/lib/libass/libass/ass_render.h b/lib/libass/libass/ass_render.h
deleted file mode 100644
index d3c1bbbfc3..0000000000
--- a/lib/libass/libass/ass_render.h
+++ /dev/null
@@ -1,298 +0,0 @@
-/*
- * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
- * Copyright (C) 2009 Grigori Goronzy <greg@geekmind.org>
- *
- * This file is part of libass.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#ifndef LIBASS_RENDER_H
-#define LIBASS_RENDER_H
-
-#include <inttypes.h>
-#include <ft2build.h>
-#include FT_FREETYPE_H
-#include FT_STROKER_H
-#include FT_GLYPH_H
-#include FT_SYNTHESIS_H
-
-// XXX: fix the inclusion mess so we can avoid doing this here
-typedef struct ass_shaper ASS_Shaper;
-
-#include "ass.h"
-#include "ass_font.h"
-#include "ass_bitmap.h"
-#include "ass_cache.h"
-#include "ass_utils.h"
-#include "ass_fontconfig.h"
-#include "ass_library.h"
-#include "ass_drawing.h"
-
-#define GLYPH_CACHE_MAX 1000
-#define BITMAP_CACHE_MAX_SIZE 30 * 1048576
-
-#define PARSED_FADE (1<<0)
-#define PARSED_A    (1<<1)
-
-typedef struct {
-    double xMin;
-    double xMax;
-    double yMin;
-    double yMax;
-} DBBox;
-
-typedef struct {
-    double x;
-    double y;
-} DVector;
-
-typedef struct free_list {
-    void *object;
-    struct free_list *next;
-} FreeList;
-
-typedef struct {
-    int frame_width;
-    int frame_height;
-    double font_size_coeff;     // font size multiplier
-    double line_spacing;        // additional line spacing (in frame pixels)
-    int top_margin;             // height of top margin. Everything except toptitles is shifted down by top_margin.
-    int bottom_margin;          // height of bottom margin. (frame_height - top_margin - bottom_margin) is original video height.
-    int left_margin;
-    int right_margin;
-    int use_margins;            // 0 - place all subtitles inside original frame
-    // 1 - use margins for placing toptitles and subtitles
-    double aspect;              // frame aspect ratio, d_width / d_height.
-    double storage_aspect;      // pixel ratio of the source image
-    ASS_Hinting hinting;
-    ASS_ShapingLevel shaper;
-
-    char *default_font;
-    char *default_family;
-} ASS_Settings;
-
-// a rendered event
-typedef struct {
-    ASS_Image *imgs;
-    int top, height, left, width;
-    int detect_collisions;
-    int shift_direction;
-    ASS_Event *event;
-} EventImages;
-
-typedef enum {
-    EF_NONE = 0,
-    EF_KARAOKE,
-    EF_KARAOKE_KF,
-    EF_KARAOKE_KO
-} Effect;
-
-// describes a glyph
-// GlyphInfo and TextInfo are used for text centering and word-wrapping operations
-typedef struct glyph_info {
-    unsigned symbol;
-    unsigned skip;              // skip glyph when layouting text
-    ASS_Font *font;
-    int face_index;
-    int glyph_index;
-    double font_size;
-    ASS_Drawing *drawing;
-    FT_Outline *outline;
-    FT_Outline *border;
-    Bitmap *bm;                 // glyph bitmap
-    Bitmap *bm_o;               // outline bitmap
-    Bitmap *bm_s;               // shadow bitmap
-    FT_BBox bbox;
-    FT_Vector pos;
-    FT_Vector offset;
-    char linebreak;             // the first (leading) glyph of some line ?
-    uint32_t c[4];              // colors
-    FT_Vector advance;          // 26.6
-    FT_Vector cluster_advance;
-    Effect effect_type;
-    int effect_timing;          // time duration of current karaoke word
-    // after process_karaoke_effects: distance in pixels from the glyph origin.
-    // part of the glyph to the left of it is displayed in a different color.
-    int effect_skip_timing;     // delay after the end of last karaoke word
-    int asc, desc;              // font max ascender and descender
-    int be;                     // blur edges
-    double blur;                // gaussian blur
-    double shadow_x;
-    double shadow_y;
-    double frx, fry, frz;       // rotation
-    double fax, fay;            // text shearing
-    double scale_x, scale_y;
-    double border_x, border_y;
-    unsigned italic;
-    unsigned bold;
-    int flags;
-
-    int bm_run_id;
-    int shape_run_id;
-
-    BitmapHashKey hash_key;
-
-    // next glyph in this cluster
-    struct glyph_info *next;
-} GlyphInfo;
-
-typedef struct {
-    double asc, desc;
-    int offset, len;
-} LineInfo;
-
-typedef struct {
-    GlyphInfo *glyphs;
-    int length;
-    LineInfo *lines;
-    int n_lines;
-    double height;
-    int max_glyphs;
-    int max_lines;
-} TextInfo;
-
-// Renderer state.
-// Values like current font face, color, screen position, clipping and so on are stored here.
-typedef struct {
-    ASS_Event *event;
-    ASS_Style *style;
-    int parsed_tags;
-
-    ASS_Font *font;
-    double font_size;
-    int flags;                  // decoration flags (underline/strike-through)
-
-    FT_Stroker stroker;
-    int alignment;              // alignment overrides go here; if zero, style value will be used
-    double frx, fry, frz;
-    double fax, fay;            // text shearing
-    enum {
-        EVENT_NORMAL,           // "normal" top-, sub- or mid- title
-        EVENT_POSITIONED,       // happens after pos(,), margins are ignored
-        EVENT_HSCROLL,          // "Banner" transition effect, text_width is unlimited
-        EVENT_VSCROLL           // "Scroll up", "Scroll down" transition effects
-    } evt_type;
-    double pos_x, pos_y;        // position
-    double org_x, org_y;        // origin
-    char have_origin;           // origin is explicitly defined; if 0, get_base_point() is used
-    double scale_x, scale_y;
-    double hspacing;            // distance between letters, in pixels
-    double border_x;            // outline width
-    double border_y;
-    uint32_t c[4];              // colors(Primary, Secondary, so on) in RGBA
-    int clip_x0, clip_y0, clip_x1, clip_y1;
-    char clip_mode;             // 1 = iclip
-    char detect_collisions;
-    uint32_t fade;              // alpha from \fad
-    char be;                    // blur edges
-    double blur;                // gaussian blur
-    double shadow_x;
-    double shadow_y;
-    int drawing_mode;           // not implemented; when != 0 text is discarded, except for style override tags
-    ASS_Drawing *drawing;       // current drawing
-    ASS_Drawing *clip_drawing;  // clip vector
-    int clip_drawing_mode;      // 0 = regular clip, 1 = inverse clip
-
-    Effect effect_type;
-    int effect_timing;
-    int effect_skip_timing;
-
-    // bitmap run id (used for final bitmap rendering)
-    int bm_run_id;
-
-    enum {
-        SCROLL_LR,              // left-to-right
-        SCROLL_RL,
-        SCROLL_TB,              // top-to-bottom
-        SCROLL_BT
-    } scroll_direction;         // for EVENT_HSCROLL, EVENT_VSCROLL
-    int scroll_shift;
-
-    // face properties
-    char *family;
-    unsigned bold;
-    unsigned italic;
-    int treat_family_as_pattern;
-    int wrap_style;
-    int font_encoding;
-} RenderContext;
-
-typedef struct {
-    Cache *font_cache;
-    Cache *outline_cache;
-    Cache *bitmap_cache;
-    Cache *composite_cache;
-    size_t glyph_max;
-    size_t bitmap_max_size;
-} CacheStore;
-
-struct ass_renderer {
-    ASS_Library *library;
-    FT_Library ftlibrary;
-    FCInstance *fontconfig_priv;
-    ASS_Settings settings;
-    int render_id;
-    ASS_SynthPriv *synth_priv;
-    ASS_Shaper *shaper;
-
-    ASS_Image *images_root;     // rendering result is stored here
-    ASS_Image *prev_images_root;
-
-    EventImages *eimg;          // temporary buffer for sorting rendered events
-    int eimg_size;              // allocated buffer size
-
-    // frame-global data
-    int width, height;          // screen dimensions
-    int orig_height;            // frame height ( = screen height - margins )
-    int orig_width;             // frame width ( = screen width - margins )
-    int orig_height_nocrop;     // frame height ( = screen height - margins + cropheight)
-    int orig_width_nocrop;      // frame width ( = screen width - margins + cropwidth)
-    ASS_Track *track;
-    long long time;             // frame's timestamp, ms
-    double font_scale;
-    double font_scale_x;        // x scale applied to all glyphs to preserve text aspect ratio
-    double border_scale;
-
-    RenderContext state;
-    TextInfo text_info;
-    CacheStore cache;
-
-    FreeList *free_head;
-    FreeList *free_tail;
-};
-
-typedef struct render_priv {
-    int top, height, left, width;
-    int render_id;
-} RenderPriv;
-
-typedef struct {
-    int x0;
-    int y0;
-    int x1;
-    int y1;
-} Rect;
-
-typedef struct {
-    int a, b;                   // top and height
-    int ha, hb;                 // left and width
-} Segment;
-
-void reset_render_context(ASS_Renderer *render_priv);
-void ass_free_images(ASS_Image *img);
-
-// XXX: this is actually in ass.c, includes should be fixed later on
-void ass_lazy_track_init(ASS_Library *lib, ASS_Track *track);
-
-#endif /* LIBASS_RENDER_H */
diff --git a/lib/libass/libass/ass_render_api.c b/lib/libass/libass/ass_render_api.c
deleted file mode 100644
index 8bf9e5db6f..0000000000
--- a/lib/libass/libass/ass_render_api.c
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
- * Copyright (C) 2010 Grigori Goronzy <greg@geekmind.org>
- *
- * This file is part of libass.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include "config.h"
-#include "ass_render.h"
-
-static void ass_reconfigure(ASS_Renderer *priv)
-{
-    ASS_Settings *settings = &priv->settings;
-
-    priv->render_id++;
-    ass_cache_empty(priv->cache.outline_cache, 0);
-    ass_cache_empty(priv->cache.bitmap_cache, 0);
-    ass_cache_empty(priv->cache.composite_cache, 0);
-    ass_free_images(priv->prev_images_root);
-    priv->prev_images_root = 0;
-
-    priv->width = settings->frame_width;
-    priv->height = settings->frame_height;
-    priv->orig_width = settings->frame_width - settings->left_margin -
-        settings->right_margin;
-    priv->orig_height = settings->frame_height - settings->top_margin -
-        settings->bottom_margin;
-    priv->orig_width_nocrop =
-        settings->frame_width - FFMAX(settings->left_margin, 0) -
-        FFMAX(settings->right_margin, 0);
-    priv->orig_height_nocrop =
-        settings->frame_height - FFMAX(settings->top_margin, 0) -
-        FFMAX(settings->bottom_margin, 0);
-}
-
-void ass_set_frame_size(ASS_Renderer *priv, int w, int h)
-{
-    if (priv->settings.frame_width != w || priv->settings.frame_height != h) {
-        priv->settings.frame_width = w;
-        priv->settings.frame_height = h;
-        if (priv->settings.aspect == 0.) {
-            priv->settings.aspect = ((double) w) / h;
-            priv->settings.storage_aspect = ((double) w) / h;
-        }
-        ass_reconfigure(priv);
-    }
-}
-
-void ass_set_shaper(ASS_Renderer *priv, ASS_ShapingLevel level)
-{
-#ifdef CONFIG_HARFBUZZ
-    // select the complex shaper for illegal values
-    if (level == ASS_SHAPING_SIMPLE || level == ASS_SHAPING_COMPLEX)
-        priv->settings.shaper = level;
-    else
-        priv->settings.shaper = ASS_SHAPING_COMPLEX;
-#endif
-}
-
-void ass_set_margins(ASS_Renderer *priv, int t, int b, int l, int r)
-{
-    if (priv->settings.left_margin != l || priv->settings.right_margin != r ||
-        priv->settings.top_margin != t || priv->settings.bottom_margin != b) {
-        priv->settings.left_margin = l;
-        priv->settings.right_margin = r;
-        priv->settings.top_margin = t;
-        priv->settings.bottom_margin = b;
-        ass_reconfigure(priv);
-    }
-}
-
-void ass_set_use_margins(ASS_Renderer *priv, int use)
-{
-    priv->settings.use_margins = use;
-}
-
-void ass_set_aspect_ratio(ASS_Renderer *priv, double dar, double sar)
-{
-    if (priv->settings.aspect != dar || priv->settings.storage_aspect != sar) {
-        priv->settings.aspect = dar;
-        priv->settings.storage_aspect = sar;
-        ass_reconfigure(priv);
-    }
-}
-
-void ass_set_font_scale(ASS_Renderer *priv, double font_scale)
-{
-    if (priv->settings.font_size_coeff != font_scale) {
-        priv->settings.font_size_coeff = font_scale;
-        ass_reconfigure(priv);
-    }
-}
-
-void ass_set_hinting(ASS_Renderer *priv, ASS_Hinting ht)
-{
-    if (priv->settings.hinting != ht) {
-        priv->settings.hinting = ht;
-        ass_reconfigure(priv);
-    }
-}
-
-void ass_set_line_spacing(ASS_Renderer *priv, double line_spacing)
-{
-    priv->settings.line_spacing = line_spacing;
-}
-
-void ass_set_fonts(ASS_Renderer *priv, const char *default_font,
-                   const char *default_family, int fc, const char *config,
-                   int update)
-{
-    free(priv->settings.default_font);
-    free(priv->settings.default_family);
-    priv->settings.default_font = default_font ? strdup(default_font) : 0;
-    priv->settings.default_family =
-        default_family ? strdup(default_family) : 0;
-
-    if (priv->fontconfig_priv)
-        fontconfig_done(priv->fontconfig_priv);
-    priv->fontconfig_priv =
-        fontconfig_init(priv->library, priv->ftlibrary, default_family,
-                        default_font, fc, config, update);
-}
-
-int ass_fonts_update(ASS_Renderer *render_priv)
-{
-    return fontconfig_update(render_priv->fontconfig_priv);
-}
-
-void ass_set_cache_limits(ASS_Renderer *render_priv, int glyph_max,
-                          int bitmap_max)
-{
-    render_priv->cache.glyph_max = glyph_max ? glyph_max : GLYPH_CACHE_MAX;
-    render_priv->cache.bitmap_max_size = bitmap_max ? 1048576 * bitmap_max :
-                                         BITMAP_CACHE_MAX_SIZE;
-}
diff --git a/lib/libass/libass/ass_shaper.c b/lib/libass/libass/ass_shaper.c
deleted file mode 100644
index 6adfc78f92..0000000000
--- a/lib/libass/libass/ass_shaper.c
+++ /dev/null
@@ -1,733 +0,0 @@
-/*
- * Copyright (C) 2011 Grigori Goronzy <greg@chown.ath.cx>
- *
- * This file is part of libass.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include "config.h"
-
-#include <fribidi/fribidi.h>
-
-#include "ass_shaper.h"
-#include "ass_render.h"
-#include "ass_font.h"
-#include "ass_parse.h"
-#include "ass_cache.h"
-
-#define MAX_RUNS 50
-
-#ifdef CONFIG_HARFBUZZ
-#include <hb-ft.h>
-enum {
-    VERT = 0,
-    VKNA,
-    KERN
-};
-#define NUM_FEATURES 3
-#endif
-
-struct ass_shaper {
-    ASS_ShapingLevel shaping_level;
-
-    // FriBidi log2vis
-    int n_glyphs;
-    FriBidiChar *event_text;
-    FriBidiCharType *ctypes;
-    FriBidiLevel *emblevels;
-    FriBidiStrIndex *cmap;
-    FriBidiParType base_direction;
-
-#ifdef CONFIG_HARFBUZZ
-    // OpenType features
-    int n_features;
-    hb_feature_t *features;
-    hb_language_t language;
-
-    // Glyph metrics cache, to speed up shaping
-    Cache *metrics_cache;
-#endif
-};
-
-#ifdef CONFIG_HARFBUZZ
-struct ass_shaper_metrics_data {
-    Cache *metrics_cache;
-    GlyphMetricsHashKey hash_key;
-    int vertical;
-};
-
-struct ass_shaper_font_data {
-    hb_font_t *fonts[ASS_FONT_MAX_FACES];
-    hb_font_funcs_t *font_funcs[ASS_FONT_MAX_FACES];
-    struct ass_shaper_metrics_data *metrics_data[ASS_FONT_MAX_FACES];
-};
-#endif
-
-/**
- * \brief Print version information
- */
-void ass_shaper_info(ASS_Library *lib)
-{
-    ass_msg(lib, MSGL_V, "Shaper: FriBidi "
-            FRIBIDI_VERSION " (SIMPLE)"
-#ifdef CONFIG_HARFBUZZ
-            " HarfBuzz-ng %s (COMPLEX)", hb_version_string()
-#endif
-           );
-}
-
-/**
- * \brief grow arrays, if needed
- * \param new_size requested size
- */
-static void check_allocations(ASS_Shaper *shaper, size_t new_size)
-{
-    if (new_size > shaper->n_glyphs) {
-        shaper->event_text = realloc(shaper->event_text, sizeof(FriBidiChar) * new_size);
-        shaper->ctypes     = realloc(shaper->ctypes, sizeof(FriBidiCharType) * new_size);
-        shaper->emblevels  = realloc(shaper->emblevels, sizeof(FriBidiLevel) * new_size);
-        shaper->cmap       = realloc(shaper->cmap, sizeof(FriBidiStrIndex) * new_size);
-    }
-}
-
-/**
- * \brief Free shaper and related data
- */
-void ass_shaper_free(ASS_Shaper *shaper)
-{
-#ifdef CONFIG_HARFBUZZ
-    ass_cache_done(shaper->metrics_cache);
-    free(shaper->features);
-#endif
-    free(shaper->event_text);
-    free(shaper->ctypes);
-    free(shaper->emblevels);
-    free(shaper->cmap);
-    free(shaper);
-}
-
-void ass_shaper_font_data_free(ASS_ShaperFontData *priv)
-{
-#ifdef CONFIG_HARFBUZZ
-    int i;
-    for (i = 0; i < ASS_FONT_MAX_FACES; i++)
-        if (priv->fonts[i]) {
-            free(priv->metrics_data[i]);
-            hb_font_destroy(priv->fonts[i]);
-            hb_font_funcs_destroy(priv->font_funcs[i]);
-        }
-    free(priv);
-#endif
-}
-
-#ifdef CONFIG_HARFBUZZ
-/**
- * \brief set up the HarfBuzz OpenType feature list with some
- * standard features.
- */
-static void init_features(ASS_Shaper *shaper)
-{
-    shaper->features = calloc(sizeof(hb_feature_t), NUM_FEATURES);
-
-    shaper->n_features = NUM_FEATURES;
-    shaper->features[VERT].tag = HB_TAG('v', 'e', 'r', 't');
-    shaper->features[VERT].end = INT_MAX;
-    shaper->features[VKNA].tag = HB_TAG('v', 'k', 'n', 'a');
-    shaper->features[VKNA].end = INT_MAX;
-    shaper->features[KERN].tag = HB_TAG('k', 'e', 'r', 'n');
-    shaper->features[KERN].end = INT_MAX;
-}
-
-/**
- * \brief Set features depending on properties of the run
- */
-static void set_run_features(ASS_Shaper *shaper, GlyphInfo *info)
-{
-        // enable vertical substitutions for @font runs
-        if (info->font->desc.vertical)
-            shaper->features[VERT].value = shaper->features[VKNA].value = 1;
-        else
-            shaper->features[VERT].value = shaper->features[VKNA].value = 0;
-}
-
-/**
- * \brief Update HarfBuzz's idea of font metrics
- * \param hb_font HarfBuzz font
- * \param face associated FreeType font face
- */
-static void update_hb_size(hb_font_t *hb_font, FT_Face face)
-{
-    hb_font_set_scale (hb_font,
-            ((uint64_t) face->size->metrics.x_scale * (uint64_t) face->units_per_EM) >> 16,
-            ((uint64_t) face->size->metrics.y_scale * (uint64_t) face->units_per_EM) >> 16);
-    hb_font_set_ppem (hb_font, face->size->metrics.x_ppem,
-            face->size->metrics.y_ppem);
-}
-
-
-/*
- * Cached glyph metrics getters follow
- *
- * These functions replace HarfBuzz' standard FreeType font functions
- * and provide cached access to essential glyph metrics. This usually
- * speeds up shaping a lot. It also allows us to use custom load flags.
- *
- */
-
-GlyphMetricsHashValue *
-get_cached_metrics(struct ass_shaper_metrics_data *metrics, FT_Face face,
-                   hb_codepoint_t glyph)
-{
-    GlyphMetricsHashValue *val;
-
-    metrics->hash_key.glyph_index = glyph;
-    val = ass_cache_get(metrics->metrics_cache, &metrics->hash_key);
-
-    if (!val) {
-        int load_flags = FT_LOAD_DEFAULT | FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH
-            | FT_LOAD_IGNORE_TRANSFORM;
-        GlyphMetricsHashValue new_val;
-
-        if (FT_Load_Glyph(face, glyph, load_flags))
-            return NULL;
-
-        memcpy(&new_val.metrics, &face->glyph->metrics, sizeof(FT_Glyph_Metrics));
-        val = ass_cache_put(metrics->metrics_cache, &metrics->hash_key, &new_val);
-    }
-
-    return val;
-}
-
-static hb_bool_t
-get_glyph(hb_font_t *font, void *font_data, hb_codepoint_t unicode,
-          hb_codepoint_t variation, hb_codepoint_t *glyph, void *user_data)
-{
-    FT_Face face = font_data;
-
-    if (variation)
-        *glyph = FT_Face_GetCharVariantIndex(face, unicode, variation);
-    else
-        *glyph = FT_Get_Char_Index(face, unicode);
-
-    return *glyph != 0;
-}
-
-static hb_position_t
-cached_h_advance(hb_font_t *font, void *font_data, hb_codepoint_t glyph,
-                 void *user_data)
-{
-    FT_Face face = font_data;
-    struct ass_shaper_metrics_data *metrics_priv = user_data;
-    GlyphMetricsHashValue *metrics = get_cached_metrics(metrics_priv, face, glyph);
-
-    if (!metrics)
-        return 0;
-
-    if (metrics_priv->vertical && glyph > VERTICAL_LOWER_BOUND)
-        return metrics->metrics.vertAdvance;
-
-    return metrics->metrics.horiAdvance;
-}
-
-static hb_position_t
-cached_v_advance(hb_font_t *font, void *font_data, hb_codepoint_t glyph,
-                 void *user_data)
-{
-    FT_Face face = font_data;
-    struct ass_shaper_metrics_data *metrics_priv = user_data;
-    GlyphMetricsHashValue *metrics = get_cached_metrics(metrics_priv, face, glyph);
-
-    if (!metrics)
-        return 0;
-
-    return metrics->metrics.vertAdvance;
-
-}
-
-static hb_bool_t
-cached_h_origin(hb_font_t *font, void *font_data, hb_codepoint_t glyph,
-                hb_position_t *x, hb_position_t *y, void *user_data)
-{
-    return 1;
-}
-
-static hb_bool_t
-cached_v_origin(hb_font_t *font, void *font_data, hb_codepoint_t glyph,
-                hb_position_t *x, hb_position_t *y, void *user_data)
-{
-    FT_Face face = font_data;
-    struct ass_shaper_metrics_data *metrics_priv = user_data;
-    GlyphMetricsHashValue *metrics = get_cached_metrics(metrics_priv, face, glyph);
-
-    if (!metrics)
-        return 0;
-
-    *x = metrics->metrics.horiBearingX - metrics->metrics.vertBearingX;
-    *y = metrics->metrics.horiBearingY - (-metrics->metrics.vertBearingY);
-
-    return 1;
-}
-
-static hb_position_t
-get_h_kerning(hb_font_t *font, void *font_data, hb_codepoint_t first,
-                 hb_codepoint_t second, void *user_data)
-{
-    FT_Face face = font_data;
-    FT_Vector kern;
-
-    if (FT_Get_Kerning (face, first, second, FT_KERNING_DEFAULT, &kern))
-        return 0;
-
-    return kern.x;
-}
-
-static hb_position_t
-get_v_kerning(hb_font_t *font, void *font_data, hb_codepoint_t first,
-                 hb_codepoint_t second, void *user_data)
-{
-    return 0;
-}
-
-static hb_bool_t
-cached_extents(hb_font_t *font, void *font_data, hb_codepoint_t glyph,
-               hb_glyph_extents_t *extents, void *user_data)
-{
-    FT_Face face = font_data;
-    struct ass_shaper_metrics_data *metrics_priv = user_data;
-    GlyphMetricsHashValue *metrics = get_cached_metrics(metrics_priv, face, glyph);
-
-    if (!metrics)
-        return 0;
-
-    extents->x_bearing = metrics->metrics.horiBearingX;
-    extents->y_bearing = metrics->metrics.horiBearingY;
-    extents->width     = metrics->metrics.width;
-    extents->height    = metrics->metrics.height;
-
-    return 1;
-}
-
-static hb_bool_t
-get_contour_point(hb_font_t *font, void *font_data, hb_codepoint_t glyph,
-                     unsigned int point_index, hb_position_t *x,
-                     hb_position_t *y, void *user_data)
-{
-    FT_Face face = font_data;
-    int load_flags = FT_LOAD_DEFAULT | FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH
-        | FT_LOAD_IGNORE_TRANSFORM;
-
-    if (FT_Load_Glyph(face, glyph, load_flags))
-        return 0;
-
-    if (point_index >= (unsigned)face->glyph->outline.n_points)
-        return 0;
-
-    *x = face->glyph->outline.points[point_index].x;
-    *y = face->glyph->outline.points[point_index].y;
-
-    return 1;
-}
-
-/**
- * \brief Retrieve HarfBuzz font from cache.
- * Create it from FreeType font, if needed.
- * \param info glyph cluster
- * \return HarfBuzz font
- */
-static hb_font_t *get_hb_font(ASS_Shaper *shaper, GlyphInfo *info)
-{
-    ASS_Font *font = info->font;
-    hb_font_t **hb_fonts;
-    struct ass_shaper_metrics_data *metrics;
-    hb_font_funcs_t *funcs;
-
-    if (!font->shaper_priv)
-        font->shaper_priv = (ASS_ShaperFontData *) calloc(sizeof(ASS_ShaperFontData), 1);
-
-
-    hb_fonts = font->shaper_priv->fonts;
-    if (!hb_fonts[info->face_index]) {
-        hb_fonts[info->face_index] =
-            hb_ft_font_create(font->faces[info->face_index], NULL);
-
-        // set up cached metrics access
-        font->shaper_priv->metrics_data[info->face_index] = (struct ass_shaper_metrics_data *)
-            calloc(sizeof(struct ass_shaper_metrics_data), 1);
-        metrics = font->shaper_priv->metrics_data[info->face_index];
-        metrics->metrics_cache = shaper->metrics_cache;
-        metrics->vertical = info->font->desc.vertical;
-
-        funcs = hb_font_funcs_create();
-        font->shaper_priv->font_funcs[info->face_index] = funcs;
-        hb_font_funcs_set_glyph_func(funcs, get_glyph,
-                metrics, NULL);
-        hb_font_funcs_set_glyph_h_advance_func(funcs, cached_h_advance,
-                metrics, NULL);
-        hb_font_funcs_set_glyph_v_advance_func(funcs, cached_v_advance,
-                metrics, NULL);
-        hb_font_funcs_set_glyph_h_origin_func(funcs, cached_h_origin,
-                metrics, NULL);
-        hb_font_funcs_set_glyph_v_origin_func(funcs, cached_v_origin,
-                metrics, NULL);
-        hb_font_funcs_set_glyph_h_kerning_func(funcs, get_h_kerning,
-                metrics, NULL);
-        hb_font_funcs_set_glyph_v_kerning_func(funcs, get_v_kerning,
-                metrics, NULL);
-        hb_font_funcs_set_glyph_extents_func(funcs, cached_extents,
-                metrics, NULL);
-        hb_font_funcs_set_glyph_contour_point_func(funcs, get_contour_point,
-                metrics, NULL);
-        hb_font_set_funcs(hb_fonts[info->face_index], funcs,
-                font->faces[info->face_index], NULL);
-    }
-
-    ass_face_set_size(font->faces[info->face_index], info->font_size);
-    update_hb_size(hb_fonts[info->face_index], font->faces[info->face_index]);
-
-    // update hash key for cached metrics
-    metrics = font->shaper_priv->metrics_data[info->face_index];
-    metrics->hash_key.font = info->font;
-    metrics->hash_key.face_index = info->face_index;
-    metrics->hash_key.size = info->font_size;
-    metrics->hash_key.scale_x = double_to_d6(info->scale_x);
-    metrics->hash_key.scale_y = double_to_d6(info->scale_y);
-
-    return hb_fonts[info->face_index];
-}
-
-/**
- * \brief Shape event text with HarfBuzz. Full OpenType shaping.
- * \param glyphs glyph clusters
- * \param len number of clusters
- */
-static void shape_harfbuzz(ASS_Shaper *shaper, GlyphInfo *glyphs, size_t len)
-{
-    int i, j;
-    int run = 0;
-    struct {
-        int offset;
-        int end;
-        hb_buffer_t *buf;
-        hb_font_t *font;
-    } runs[MAX_RUNS];
-
-
-    for (i = 0; i < len && run < MAX_RUNS; i++, run++) {
-        // get length and level of the current run
-        int k = i;
-        int level = glyphs[i].shape_run_id;
-        int direction = shaper->emblevels[k] % 2;
-        while (i < (len - 1) && level == glyphs[i+1].shape_run_id)
-            i++;
-        runs[run].offset = k;
-        runs[run].end    = i;
-        runs[run].buf    = hb_buffer_create();
-        runs[run].font   = get_hb_font(shaper, glyphs + k);
-        set_run_features(shaper, glyphs + k);
-        hb_buffer_pre_allocate(runs[run].buf, i - k + 1);
-        hb_buffer_set_direction(runs[run].buf, direction ? HB_DIRECTION_RTL :
-                HB_DIRECTION_LTR);
-        hb_buffer_set_language(runs[run].buf, shaper->language);
-        hb_buffer_add_utf32(runs[run].buf, shaper->event_text + k, i - k + 1,
-                0, i - k + 1);
-        hb_shape(runs[run].font, runs[run].buf, shaper->features,
-                shaper->n_features);
-    }
-
-    // Initialize: skip all glyphs, this is undone later as needed
-    for (i = 0; i < len; i++)
-        glyphs[i].skip = 1;
-
-    // Update glyph indexes, positions and advances from the shaped runs
-    for (i = 0; i < run; i++) {
-        int num_glyphs = hb_buffer_get_length(runs[i].buf);
-        hb_glyph_info_t *glyph_info = hb_buffer_get_glyph_infos(runs[i].buf, NULL);
-        hb_glyph_position_t *pos    = hb_buffer_get_glyph_positions(runs[i].buf, NULL);
-
-        for (j = 0; j < num_glyphs; j++) {
-            int idx = glyph_info[j].cluster + runs[i].offset;
-            GlyphInfo *info = glyphs + idx;
-            GlyphInfo *root = info;
-
-            // if we have more than one glyph per cluster, allocate a new one
-            // and attach to the root glyph
-            if (info->skip == 0) {
-                while (info->next)
-                    info = info->next;
-                info->next = malloc(sizeof(GlyphInfo));
-                memcpy(info->next, info, sizeof(GlyphInfo));
-                info = info->next;
-                info->next = NULL;
-            }
-
-            // set position and advance
-            info->skip = 0;
-            info->glyph_index = glyph_info[j].codepoint;
-            info->offset.x    = pos[j].x_offset * info->scale_x;
-            info->offset.y    = -pos[j].y_offset * info->scale_y;
-            info->advance.x   = pos[j].x_advance * info->scale_x;
-            info->advance.y   = -pos[j].y_advance * info->scale_y;
-
-            // accumulate advance in the root glyph
-            root->cluster_advance.x += info->advance.x;
-            root->cluster_advance.y += info->advance.y;
-        }
-    }
-
-    // Free runs and associated data
-    for (i = 0; i < run; i++) {
-        hb_buffer_destroy(runs[i].buf);
-    }
-
-}
-#endif
-
-/**
- * \brief Shape event text with FriBidi. Does mirroring and simple
- * Arabic shaping.
- * \param len number of clusters
- */
-static void shape_fribidi(ASS_Shaper *shaper, GlyphInfo *glyphs, size_t len)
-{
-    int i;
-    FriBidiJoiningType *joins = calloc(sizeof(*joins), len);
-
-    // shape on codepoint level
-    fribidi_get_joining_types(shaper->event_text, len, joins);
-    fribidi_join_arabic(shaper->ctypes, len, shaper->emblevels, joins);
-    fribidi_shape(FRIBIDI_FLAGS_DEFAULT | FRIBIDI_FLAGS_ARABIC,
-            shaper->emblevels, len, joins, shaper->event_text);
-
-    // update indexes
-    for (i = 0; i < len; i++) {
-        GlyphInfo *info = glyphs + i;
-        FT_Face face = info->font->faces[info->face_index];
-        info->symbol = shaper->event_text[i];
-        info->glyph_index = FT_Get_Char_Index(face, shaper->event_text[i]);
-    }
-
-    free(joins);
-}
-
-/**
- * \brief Toggle kerning for HarfBuzz shaping.
- * NOTE: currently only works with OpenType fonts, the TrueType fallback *always*
- * kerns. It's a bug in HarfBuzz.
- */
-void ass_shaper_set_kerning(ASS_Shaper *shaper, int kern)
-{
-#ifdef CONFIG_HARFBUZZ
-    shaper->features[KERN].value = !!kern;
-#endif
-}
-
-/**
- * \brief Find shape runs according to the event's selected fonts
- */
-void ass_shaper_find_runs(ASS_Shaper *shaper, ASS_Renderer *render_priv,
-                          GlyphInfo *glyphs, size_t len)
-{
-    int i;
-    int shape_run = 0;
-
-    for (i = 0; i < len; i++) {
-        GlyphInfo *last = glyphs + i - 1;
-        GlyphInfo *info = glyphs + i;
-        // skip drawings
-        if (info->symbol == 0xfffc)
-            continue;
-        // set size and get glyph index
-        ass_font_get_index(render_priv->fontconfig_priv, info->font,
-                info->symbol, &info->face_index, &info->glyph_index);
-        // shape runs share the same font face and size
-        if (i > 0 && (last->font != info->font ||
-                    last->font_size != info->font_size ||
-                    last->face_index != info->face_index))
-            shape_run++;
-        info->shape_run_id = shape_run;
-    }
-
-}
-
-/**
- * \brief Set base direction (paragraph direction) of the text.
- * \param dir base direction
- */
-void ass_shaper_set_base_direction(ASS_Shaper *shaper, FriBidiParType dir)
-{
-    shaper->base_direction = dir;
-}
-
-/**
- * \brief Set language hint. Some languages have specific character variants,
- * like Serbian Cyrillic.
- * \param lang ISO 639-1 two-letter language code
- */
-void ass_shaper_set_language(ASS_Shaper *shaper, const char *code)
-{
-#ifdef CONFIG_HARFBUZZ
-    shaper->language = hb_language_from_string(code, -1);
-#endif
-}
-
-/**
- * Set shaping level. Essentially switches between FriBidi and HarfBuzz.
- */
-void ass_shaper_set_level(ASS_Shaper *shaper, ASS_ShapingLevel level)
-{
-    shaper->shaping_level = level;
-}
-
-/**
- * \brief Shape an event's text. Calculates directional runs and shapes them.
- * \param text_info event's text
- */
-void ass_shaper_shape(ASS_Shaper *shaper, TextInfo *text_info)
-{
-    int i, last_break;
-    FriBidiParType dir;
-    GlyphInfo *glyphs = text_info->glyphs;
-
-    check_allocations(shaper, text_info->length);
-
-    // Get bidi character types and embedding levels
-    last_break = 0;
-    for (i = 0; i < text_info->length; i++) {
-        shaper->event_text[i] = glyphs[i].symbol;
-        // embedding levels should be calculated paragraph by paragraph
-        if (glyphs[i].symbol == '\n' || i == text_info->length - 1) {
-            dir = shaper->base_direction;
-            fribidi_get_bidi_types(shaper->event_text + last_break,
-                    i - last_break + 1, shaper->ctypes + last_break);
-            fribidi_get_par_embedding_levels(shaper->ctypes + last_break,
-                    i - last_break + 1, &dir, shaper->emblevels + last_break);
-            last_break = i + 1;
-        }
-    }
-
-    // add embedding levels to shape runs for final runs
-    for (i = 0; i < text_info->length; i++) {
-        glyphs[i].shape_run_id += shaper->emblevels[i];
-    }
-
-#ifdef CONFIG_HARFBUZZ
-    switch (shaper->shaping_level) {
-    case ASS_SHAPING_SIMPLE:
-        shape_fribidi(shaper, glyphs, text_info->length);
-        break;
-    case ASS_SHAPING_COMPLEX:
-        shape_harfbuzz(shaper, glyphs, text_info->length);
-        break;
-    }
-#else
-        shape_fribidi(shaper, glyphs, text_info->length);
-#endif
-
-
-    // clean up
-    for (i = 0; i < text_info->length; i++) {
-        // Skip direction override control characters
-        // NOTE: Behdad said HarfBuzz is supposed to remove these, but this hasn't
-        // been implemented yet
-        if (glyphs[i].symbol <= 0x202F && glyphs[i].symbol >= 0x202a) {
-            glyphs[i].symbol = 0;
-            glyphs[i].skip++;
-        }
-    }
-}
-
-/**
- * \brief Create a new shaper instance and preallocate data structures
- * \param prealloc preallocation size
- */
-ASS_Shaper *ass_shaper_new(size_t prealloc)
-{
-    ASS_Shaper *shaper = calloc(sizeof(*shaper), 1);
-
-    shaper->base_direction = FRIBIDI_PAR_ON;
-    check_allocations(shaper, prealloc);
-
-#ifdef CONFIG_HARFBUZZ
-    init_features(shaper);
-    shaper->metrics_cache = ass_glyph_metrics_cache_create();
-#endif
-
-    return shaper;
-}
-
-
-/**
- * \brief clean up additional data temporarily needed for shaping and
- * (e.g. additional glyphs allocated)
- */
-void ass_shaper_cleanup(ASS_Shaper *shaper, TextInfo *text_info)
-{
-    int i;
-
-    for (i = 0; i < text_info->length; i++) {
-        GlyphInfo *info = text_info->glyphs + i;
-        info = info->next;
-        while (info) {
-            GlyphInfo *next = info->next;
-            free(info);
-            info = next;
-        }
-    }
-}
-
-/**
- * \brief Calculate reorder map to render glyphs in visual order
- */
-FriBidiStrIndex *ass_shaper_reorder(ASS_Shaper *shaper, TextInfo *text_info)
-{
-    int i;
-
-    // Initialize reorder map
-    for (i = 0; i < text_info->length; i++)
-        shaper->cmap[i] = i;
-
-    // Create reorder map line-by-line
-    for (i = 0; i < text_info->n_lines; i++) {
-        LineInfo *line = text_info->lines + i;
-        int level;
-        FriBidiParType dir = FRIBIDI_PAR_ON;
-
-        level = fribidi_reorder_line(0,
-                shaper->ctypes + line->offset, line->len, 0, dir,
-                shaper->emblevels + line->offset, NULL,
-                shaper->cmap + line->offset);
-    }
-
-    return shaper->cmap;
-}
-
-/**
- * \brief Resolve a Windows font encoding number to a suitable
- * base direction. 177 and 178 are Hebrew and Arabic respectively, and
- * they map to RTL. 1 is autodetection and is mapped to just that.
- * Everything else is mapped to LTR.
- * \param enc Windows font encoding
- */
-FriBidiParType resolve_base_direction(int enc)
-{
-    switch (enc) {
-        case 1:
-            return FRIBIDI_PAR_ON;
-        case 177:
-        case 178:
-            return FRIBIDI_PAR_RTL;
-        default:
-            return FRIBIDI_PAR_LTR;
-    }
-}
diff --git a/lib/libass/libass/ass_shaper.h b/lib/libass/libass/ass_shaper.h
deleted file mode 100644
index 81499dde8e..0000000000
--- a/lib/libass/libass/ass_shaper.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * Copyright (C) 2011 Grigori Goronzy <greg@chown.ath.cx>
- *
- * This file is part of libass.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#ifndef LIBASS_SHAPER_H
-#define LIBASS_SHAPER_H
-
-#include "config.h"
-
-#include <fribidi/fribidi.h>
-#include "ass_render.h"
-
-void ass_shaper_info(ASS_Library *lib);
-ASS_Shaper *ass_shaper_new(size_t prealloc);
-void ass_shaper_free(ASS_Shaper *shaper);
-void ass_shaper_set_kerning(ASS_Shaper *shaper, int kern);
-void ass_shaper_find_runs(ASS_Shaper *shaper, ASS_Renderer *render_priv,
-                          GlyphInfo *glyphs, size_t len);
-void ass_shaper_set_base_direction(ASS_Shaper *shaper, FriBidiParType dir);
-void ass_shaper_set_language(ASS_Shaper *shaper, const char *code);
-void ass_shaper_set_level(ASS_Shaper *shaper, ASS_ShapingLevel level);
-void ass_shaper_shape(ASS_Shaper *shaper, TextInfo *text_info);
-void ass_shaper_cleanup(ASS_Shaper *shaper, TextInfo *text_info);
-FriBidiStrIndex *ass_shaper_reorder(ASS_Shaper *shaper, TextInfo *text_info);
-FriBidiParType resolve_base_direction(int font_encoding);
-
-void ass_shaper_font_data_free(ASS_ShaperFontData *priv);
-
-#endif
diff --git a/lib/libass/libass/ass_strtod.c b/lib/libass/libass/ass_strtod.c
deleted file mode 100644
index f55b37ae12..0000000000
--- a/lib/libass/libass/ass_strtod.c
+++ /dev/null
@@ -1,249 +0,0 @@
-/*
- * Copyright (c) 1988-1993 The Regents of the University of California.
- * Copyright (c) 1994 Sun Microsystems, Inc.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies.  The University of California
- * makes no representations about the suitability of this
- * software for any purpose.  It is provided "as is" without
- * express or implied warranty.
- *
- */
-
-#include <stdlib.h>
-#include <ctype.h>
-#include <errno.h>
-
-const
-static int maxExponent = 511;   /* Largest possible base 10 exponent.  Any
-                                 * exponent larger than this will already
-                                 * produce underflow or overflow, so there's
-                                 * no need to worry about additional digits.
-                                 */
-
-const
-static double powersOf10[] = {  /* Table giving binary powers of 10.  Entry */
-    10.,                        /* is 10^2^i.  Used to convert decimal */
-    100.,                       /* exponents into floating-point numbers. */
-    1.0e4,
-    1.0e8,
-    1.0e16,
-    1.0e32,
-    1.0e64,
-    1.0e128,
-    1.0e256
-};
-
-/*
- *----------------------------------------------------------------------
- *
- * strtod --
- *
- * This procedure converts a floating-point number from an ASCII
- * decimal representation to internal double-precision format.
- *
- * Results:
- * The return value is the double-precision floating-point
- * representation of the characters in string.  If endPtr isn't
- * NULL, then *endPtr is filled in with the address of the
- * next character after the last one that was part of the
- * floating-point number.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
-double
-ass_strtod(string, endPtr)
-    const char *string;     /* A decimal ASCII floating-point number,
-                             * optionally preceded by white space.
-                             * Must have form "-I.FE-X", where I is the
-                             * integer part of the mantissa, F is the
-                             * fractional part of the mantissa, and X
-                             * is the exponent.  Either of the signs
-                             * may be "+", "-", or omitted.  Either I
-                             * or F may be omitted, or both.  The decimal
-                             * point isn't necessary unless F is present.
-                             * The "E" may actually be an "e".  E and X
-                             * may both be omitted (but not just one).
-                             */
-    char **endPtr;          /* If non-NULL, store terminating character's
-                             * address here. */
-{
-    int sign, expSign = 0;
-    double fraction, dblExp, *d;
-    register const char *p;
-    register int c;
-    int exp = 0;            /* Exponent read from "EX" field. */
-    int fracExp = 0;        /* Exponent that derives from the fractional
-                             * part.  Under normal circumstatnces, it is
-                             * the negative of the number of digits in F.
-                             * However, if I is very long, the last digits
-                             * of I get dropped (otherwise a long I with a
-                             * large negative exponent could cause an
-                             * unnecessary overflow on I alone).  In this
-                             * case, fracExp is incremented one for each
-                             * dropped digit. */
-    int mantSize;       /* Number of digits in mantissa. */
-    int decPt;          /* Number of mantissa digits BEFORE decimal
-                         * point. */
-    const char *pExp;       /* Temporarily holds location of exponent
-                             * in string. */
-
-    /*
-     * Strip off leading blanks and check for a sign.
-     */
-
-    p = string;
-    while (isspace(*p)) {
-        p += 1;
-    }
-    if (*p == '-') {
-        sign = 1;
-        p += 1;
-    } else {
-        if (*p == '+') {
-            p += 1;
-        }
-        sign = 0;
-    }
-
-    /*
-     * Count the number of digits in the mantissa (including the decimal
-     * point), and also locate the decimal point.
-     */
-
-    decPt = -1;
-    for (mantSize = 0; ; mantSize += 1)
-    {
-        c = *p;
-        if (!isdigit(c)) {
-            if ((c != '.') || (decPt >= 0)) {
-                break;
-            }
-            decPt = mantSize;
-        }
-        p += 1;
-    }
-
-    /*
-     * Now suck up the digits in the mantissa.  Use two integers to
-     * collect 9 digits each (this is faster than using floating-point).
-     * If the mantissa has more than 18 digits, ignore the extras, since
-     * they can't affect the value anyway.
-     */
-
-    pExp  = p;
-    p -= mantSize;
-    if (decPt < 0) {
-        decPt = mantSize;
-    } else {
-        mantSize -= 1;      /* One of the digits was the point. */
-    }
-    if (mantSize > 18) {
-        fracExp = decPt - 18;
-        mantSize = 18;
-    } else {
-        fracExp = decPt - mantSize;
-    }
-    if (mantSize == 0) {
-        fraction = 0.0;
-        p = string;
-        goto done;
-    } else {
-        int frac1, frac2;
-        frac1 = 0;
-        for ( ; mantSize > 9; mantSize -= 1)
-        {
-            c = *p;
-            p += 1;
-            if (c == '.') {
-                c = *p;
-                p += 1;
-            }
-            frac1 = 10*frac1 + (c - '0');
-        }
-        frac2 = 0;
-        for (; mantSize > 0; mantSize -= 1)
-        {
-            c = *p;
-            p += 1;
-            if (c == '.') {
-                c = *p;
-                p += 1;
-            }
-            frac2 = 10*frac2 + (c - '0');
-        }
-        fraction = (1.0e9 * frac1) + frac2;
-    }
-
-    /*
-     * Skim off the exponent.
-     */
-
-    p = pExp;
-    if ((*p == 'E') || (*p == 'e')) {
-        p += 1;
-        if (*p == '-') {
-            expSign = 1;
-            p += 1;
-        } else {
-            if (*p == '+') {
-                p += 1;
-            }
-            expSign = 0;
-        }
-        while (isdigit(*p)) {
-            exp = exp * 10 + (*p - '0');
-            p += 1;
-        }
-    }
-    if (expSign) {
-        exp = fracExp - exp;
-    } else {
-        exp = fracExp + exp;
-    }
-
-    /*
-     * Generate a floating-point number that represents the exponent.
-     * Do this by processing the exponent one bit at a time to combine
-     * many powers of 2 of 10. Then combine the exponent with the
-     * fraction.
-     */
-
-    if (exp < 0) {
-        expSign = 1;
-        exp = -exp;
-    } else {
-        expSign = 0;
-    }
-    if (exp > maxExponent) {
-        exp = maxExponent;
-        errno = ERANGE;
-    }
-    dblExp = 1.0;
-    for (d = (double *) powersOf10; exp != 0; exp >>= 1, d += 1) {
-        if (exp & 01) {
-            dblExp *= *d;
-        }
-    }
-    if (expSign) {
-        fraction /= dblExp;
-    } else {
-        fraction *= dblExp;
-    }
-
-done:
-    if (endPtr != NULL) {
-        *endPtr = (char *) p;
-    }
-
-    if (sign) {
-        return -fraction;
-    }
-    return fraction;
-}
diff --git a/lib/libass/libass/ass_types.h b/lib/libass/libass/ass_types.h
deleted file mode 100644
index 20fd825ef1..0000000000
--- a/lib/libass/libass/ass_types.h
+++ /dev/null
@@ -1,124 +0,0 @@
-/*
- * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
- *
- * This file is part of libass.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#ifndef LIBASS_TYPES_H
-#define LIBASS_TYPES_H
-
-#include <stdint.h>
-
-#define VALIGN_SUB 0
-#define VALIGN_CENTER 8
-#define VALIGN_TOP 4
-#define HALIGN_LEFT 1
-#define HALIGN_CENTER 2
-#define HALIGN_RIGHT 3
-
-/* Opaque objects internally used by libass.  Contents are private. */
-typedef struct ass_renderer ASS_Renderer;
-typedef struct render_priv ASS_RenderPriv;
-typedef struct parser_priv ASS_ParserPriv;
-typedef struct ass_library ASS_Library;
-
-/* ASS Style: line */
-typedef struct ass_style {
-    char *Name;
-    char *FontName;
-    double FontSize;
-    uint32_t PrimaryColour;
-    uint32_t SecondaryColour;
-    uint32_t OutlineColour;
-    uint32_t BackColour;
-    int Bold;
-    int Italic;
-    int Underline;
-    int StrikeOut;
-    double ScaleX;
-    double ScaleY;
-    double Spacing;
-    int Angle;
-    int BorderStyle;
-    double Outline;
-    double Shadow;
-    int Alignment;
-    int MarginL;
-    int MarginR;
-    int MarginV;
-    int Encoding;
-    int treat_fontname_as_pattern;
-} ASS_Style;
-
-/*
- * ASS_Event corresponds to a single Dialogue line;
- * text is stored as-is, style overrides will be parsed later.
- */
-typedef struct ass_event {
-    long long Start;            // ms
-    long long Duration;         // ms
-
-    int ReadOrder;
-    int Layer;
-    int Style;
-    char *Name;
-    int MarginL;
-    int MarginR;
-    int MarginV;
-    char *Effect;
-    char *Text;
-
-    ASS_RenderPriv *render_priv;
-} ASS_Event;
-
-/*
- * ass track represent either an external script or a matroska subtitle stream
- * (no real difference between them); it can be used in rendering after the
- * headers are parsed (i.e. events format line read).
- */
-typedef struct ass_track {
-    int n_styles;           // amount used
-    int max_styles;         // amount allocated
-    int n_events;
-    int max_events;
-    ASS_Style *styles;    // array of styles, max_styles length, n_styles used
-    ASS_Event *events;    // the same as styles
-
-    char *style_format;     // style format line (everything after "Format: ")
-    char *event_format;     // event format line
-
-    enum {
-        TRACK_TYPE_UNKNOWN = 0,
-        TRACK_TYPE_ASS,
-        TRACK_TYPE_SSA
-    } track_type;
-
-    // Script header fields
-    int PlayResX;
-    int PlayResY;
-    double Timer;
-    int WrapStyle;
-    int ScaledBorderAndShadow;
-    int Kerning;
-    char *Language;
-
-    int default_style;      // index of default style
-    char *name;             // file name in case of external subs, 0 for streams
-
-    ASS_Library *library;
-    ASS_ParserPriv *parser_priv;
-} ASS_Track;
-
-#endif /* LIBASS_TYPES_H */
diff --git a/lib/libass/libass/ass_utils.c b/lib/libass/libass/ass_utils.c
deleted file mode 100644
index 2fd46c4b45..0000000000
--- a/lib/libass/libass/ass_utils.c
+++ /dev/null
@@ -1,215 +0,0 @@
-/*
- * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
- *
- * This file is part of libass.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include "config.h"
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <inttypes.h>
-#include <ft2build.h>
-#include FT_GLYPH_H
-#ifndef _WIN32
-#include <strings.h>
-#endif
-
-#include "ass_library.h"
-#include "ass.h"
-#include "ass_utils.h"
-
-#ifdef _WIN32
-FILE *fopen_utf8(const char *_Filename, const char *_Mode)
-{
-  return fopen(_Filename, _Mode);
-}
-#endif
-
-int mystrtoi(char **p, int *res)
-{
-    double temp_res;
-    char *start = *p;
-    temp_res = ass_strtod(*p, p);
-    *res = (int) (temp_res + (temp_res > 0 ? 0.5 : -0.5));
-    if (*p != start)
-        return 1;
-    else
-        return 0;
-}
-
-int mystrtoll(char **p, long long *res)
-{
-    double temp_res;
-    char *start = *p;
-    temp_res = ass_strtod(*p, p);
-    *res = (int) (temp_res + (temp_res > 0 ? 0.5 : -0.5));
-    if (*p != start)
-        return 1;
-    else
-        return 0;
-}
-
-int mystrtou32(char **p, int base, uint32_t *res)
-{
-    char *start = *p;
-    *res = strtoll(*p, p, base);
-    if (*p != start)
-        return 1;
-    else
-        return 0;
-}
-
-int mystrtod(char **p, double *res)
-{
-    char *start = *p;
-    *res = ass_strtod(*p, p);
-    if (*p != start)
-        return 1;
-    else
-        return 0;
-}
-
-int strtocolor(ASS_Library *library, char **q, uint32_t *res, int hex)
-{
-    uint32_t color = 0;
-    int result;
-    char *p = *q;
-    int base = hex ? 16 : 10;
-
-    if (*p == '&')
-        ++p;
-    else
-        ass_msg(library, MSGL_DBG2, "suspicious color format: \"%s\"\n", p);
-
-    if (*p == 'H' || *p == 'h') {
-        ++p;
-        result = mystrtou32(&p, 16, &color);
-    } else {
-        result = mystrtou32(&p, base, &color);
-    }
-
-    {
-        unsigned char *tmp = (unsigned char *) (&color);
-        unsigned char b;
-        b = tmp[0];
-        tmp[0] = tmp[3];
-        tmp[3] = b;
-        b = tmp[1];
-        tmp[1] = tmp[2];
-        tmp[2] = b;
-    }
-    if (*p == '&')
-        ++p;
-    *q = p;
-
-    *res = color;
-    return result;
-}
-
-// Return a boolean value for a string
-char parse_bool(char *str)
-{
-    while (*str == ' ' || *str == '\t')
-        str++;
-    if (!strncasecmp(str, "yes", 3))
-        return 1;
-    else if (strtol(str, NULL, 10) > 0)
-        return 1;
-    return 0;
-}
-
-void ass_msg(ASS_Library *priv, int lvl, char *fmt, ...)
-{
-    va_list va;
-    va_start(va, fmt);
-    priv->msg_callback(lvl, fmt, va, priv->msg_callback_data);
-    va_end(va);
-}
-
-unsigned ass_utf8_get_char(char **str)
-{
-    uint8_t *strp = (uint8_t *) * str;
-    unsigned c = *strp++;
-    unsigned mask = 0x80;
-    int len = -1;
-    while (c & mask) {
-        mask >>= 1;
-        len++;
-    }
-    if (len <= 0 || len > 4)
-        goto no_utf8;
-    c &= mask - 1;
-    while ((*strp & 0xc0) == 0x80) {
-        if (len-- <= 0)
-            goto no_utf8;
-        c = (c << 6) | (*strp++ & 0x3f);
-    }
-    if (len)
-        goto no_utf8;
-    *str = (char *) strp;
-    return c;
-
-  no_utf8:
-    strp = (uint8_t *) * str;
-    c = *strp++;
-    *str = (char *) strp;
-    return c;
-}
-
-#ifdef CONFIG_ENCA
-void *ass_guess_buffer_cp(ASS_Library *library, unsigned char *buffer,
-                          int buflen, char *preferred_language,
-                          char *fallback)
-{
-    const char **languages;
-    size_t langcnt;
-    EncaAnalyser analyser;
-    EncaEncoding encoding;
-    char *detected_sub_cp = NULL;
-    int i;
-
-    languages = enca_get_languages(&langcnt);
-    ass_msg(library, MSGL_V, "ENCA supported languages");
-    for (i = 0; i < langcnt; i++) {
-        ass_msg(library, MSGL_V, "lang %s", languages[i]);
-    }
-
-    for (i = 0; i < langcnt; i++) {
-        const char *tmp;
-
-        if (strcasecmp(languages[i], preferred_language) != 0)
-            continue;
-        analyser = enca_analyser_alloc(languages[i]);
-        encoding = enca_analyse_const(analyser, buffer, buflen);
-        tmp = enca_charset_name(encoding.charset, ENCA_NAME_STYLE_ICONV);
-        if (tmp && encoding.charset != ENCA_CS_UNKNOWN) {
-            detected_sub_cp = strdup(tmp);
-            ass_msg(library, MSGL_INFO, "ENCA detected charset: %s", tmp);
-        }
-        enca_analyser_free(analyser);
-    }
-
-    free(languages);
-
-    if (!detected_sub_cp) {
-        detected_sub_cp = strdup(fallback);
-        ass_msg(library, MSGL_INFO,
-               "ENCA detection failed: fallback to %s", fallback);
-    }
-
-    return detected_sub_cp;
-}
-#endif
diff --git a/lib/libass/libass/ass_utils.h b/lib/libass/libass/ass_utils.h
deleted file mode 100644
index f0093973da..0000000000
--- a/lib/libass/libass/ass_utils.h
+++ /dev/null
@@ -1,155 +0,0 @@
-/*
- * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
- *
- * This file is part of libass.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#ifndef LIBASS_UTILS_H
-#define LIBASS_UTILS_H
-
-#include <stdio.h>
-#include <stdarg.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-#include <assert.h>
-
-#ifdef CONFIG_ENCA
-#include <enca.h>
-#endif
-
-#include "ass.h"
-
-#ifdef _WIN32
-#include "config.h"
-// This is needed in debug build. Without those defines, those 3 symbols are taken from msvcr100.dll, and free() from msvcr100d.dll
-// This cause a heap corruption each time a strdup is freed
-// See http://www.altdevblogaday.com/2011/08/02/a-journey-into-linker-hell-and-a-mistake/
-#define strdup _strdup
-#define stricmp _stricmp
-#define strnicmp _strnicmp
-#endif
-
-#define MSGL_FATAL 0
-#define MSGL_ERR 1
-#define MSGL_WARN 2
-#define MSGL_INFO 4
-#define MSGL_V 6
-#define MSGL_DBG2 7
-
-#define FFMAX(a,b) ((a) > (b) ? (a) : (b))
-#define FFMIN(a,b) ((a) > (b) ? (b) : (a))
-#define FFMINMAX(c,a,b) FFMIN(FFMAX(c, a), b)
-
-int mystrtoi(char **p, int *res);
-int mystrtoll(char **p, long long *res);
-int mystrtou32(char **p, int base, uint32_t *res);
-int mystrtod(char **p, double *res);
-int strtocolor(ASS_Library *library, char **q, uint32_t *res, int hex);
-char parse_bool(char *str);
-unsigned ass_utf8_get_char(char **str);
-void ass_msg(ASS_Library *priv, int lvl, char *fmt, ...);
-#ifdef CONFIG_ENCA
-void *ass_guess_buffer_cp(ASS_Library *library, unsigned char *buffer,
-                          int buflen, char *preferred_language,
-                          char *fallback);
-#endif
-
-/* defined in ass_strtod.c */
-double ass_strtod(const char *string, char **endPtr);
-
-static inline int d6_to_int(int x)
-{
-    return (x + 32) >> 6;
-}
-static inline int d16_to_int(int x)
-{
-    return (x + 32768) >> 16;
-}
-static inline int int_to_d6(int x)
-{
-    return x << 6;
-}
-static inline int int_to_d16(int x)
-{
-    return x << 16;
-}
-static inline int d16_to_d6(int x)
-{
-    return (x + 512) >> 10;
-}
-static inline int d6_to_d16(int x)
-{
-    return x << 10;
-}
-static inline double d6_to_double(int x)
-{
-    return x / 64.;
-}
-static inline int double_to_d6(double x)
-{
-    return (int) (x * 64);
-}
-static inline double d16_to_double(int x)
-{
-    return ((double) x) / 0x10000;
-}
-static inline int double_to_d16(double x)
-{
-    return (int) (x * 0x10000);
-}
-static inline double d22_to_double(int x)
-{
-    return ((double) x) / 0x400000;
-}
-static inline int double_to_d22(double x)
-{
-    return (int) (x * 0x400000);
-}
-
-// Calculate cache key for a rotational angle in degrees
-static inline int rot_key(double a)
-{
-    const int m = double_to_d22(360.0);
-    return double_to_d22(a) % m;
-}
-
-#define FNV1_32A_INIT (unsigned)0x811c9dc5
-
-static inline unsigned fnv_32a_buf(void *buf, size_t len, unsigned hval)
-{
-    unsigned char *bp = buf;
-    unsigned char *be = bp + len;
-    while (bp < be) {
-        hval ^= (unsigned) *bp++;
-        hval +=
-            (hval << 1) + (hval << 4) + (hval << 7) + (hval << 8) +
-            (hval << 24);
-    }
-    return hval;
-}
-static inline unsigned fnv_32a_str(char *str, unsigned hval)
-{
-    unsigned char *s = (unsigned char *) str;
-    while (*s) {
-        hval ^= (unsigned) *s++;
-        hval +=
-            (hval << 1) + (hval << 4) + (hval << 7) + (hval << 8) +
-            (hval << 24);
-    }
-    return hval;
-}
-
-#endif                          /* LIBASS_UTILS_H */
diff --git a/lib/libass/libass/libass.sym b/lib/libass/libass/libass.sym
deleted file mode 100644
index f8fa1458a1..0000000000
--- a/lib/libass/libass/libass.sym
+++ /dev/null
@@ -1,37 +0,0 @@
-ass_library_init
-ass_library_done
-ass_set_fonts_dir
-ass_set_extract_fonts
-ass_set_style_overrides
-ass_renderer_init
-ass_renderer_done
-ass_set_frame_size
-ass_set_margins
-ass_set_use_margins
-ass_set_aspect_ratio
-ass_set_font_scale
-ass_set_hinting
-ass_set_line_spacing
-ass_set_fonts
-ass_render_frame
-ass_new_track
-ass_free_track
-ass_alloc_style
-ass_alloc_event
-ass_free_style
-ass_free_event
-ass_process_data
-ass_process_codec_private
-ass_process_chunk
-ass_read_file
-ass_read_memory
-ass_read_styles
-ass_add_font
-ass_clear_fonts
-ass_step_sub
-ass_process_force_style
-ass_set_message_cb
-ass_fonts_update
-ass_set_cache_limits
-ass_flush_events
-ass_set_shaper
diff --git a/lib/libass/m4/.gitignore b/lib/libass/m4/.gitignore
deleted file mode 100644
index e69de29bb2..0000000000
--- a/lib/libass/m4/.gitignore
+++ /dev/null
diff --git a/lib/libass/test/Makefile.am b/lib/libass/test/Makefile.am
deleted file mode 100644
index 208c9cf37b..0000000000
--- a/lib/libass/test/Makefile.am
+++ /dev/null
@@ -1,7 +0,0 @@
-AM_CFLAGS = -Wall
-
-noinst_PROGRAMS = test
-test_SOURCES = test.c
-test_CPPFLAGS = -I../libass
-test_LDADD = ../libass/libass.la
-test_LDFLAGS = $(AM_LDFLAGS) $(LIBPNG_LIBS)
diff --git a/lib/libass/test/test.c b/lib/libass/test/test.c
deleted file mode 100644
index d6cd9b8672..0000000000
--- a/lib/libass/test/test.c
+++ /dev/null
@@ -1,201 +0,0 @@
-/*
- * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
- * Copyright (C) 2009 Grigori Goronzy <greg@geekmind.org>
- *
- * This file is part of libass.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdarg.h>
-#include <ass.h>
-#include <png.h>
-
-typedef struct image_s {
-    int width, height, stride;
-    unsigned char *buffer;      // RGB24
-} image_t;
-
-ASS_Library *ass_library;
-ASS_Renderer *ass_renderer;
-
-void msg_callback(int level, const char *fmt, va_list va, void *data)
-{
-    if (level > 6)
-        return;
-    printf("libass: ");
-    vprintf(fmt, va);
-    printf("\n");
-}
-
-static void write_png(char *fname, image_t *img)
-{
-    FILE *fp;
-    png_structp png_ptr;
-    png_infop info_ptr;
-    png_byte **row_pointers;
-    int k;
-
-    png_ptr =
-        png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
-    info_ptr = png_create_info_struct(png_ptr);
-    fp = NULL;
-
-    if (setjmp(png_jmpbuf(png_ptr))) {
-        png_destroy_write_struct(&png_ptr, &info_ptr);
-        fclose(fp);
-        return;
-    }
-
-    fp = fopen(fname, "wb");
-    if (fp == NULL) {
-        printf("PNG Error opening %s for writing!\n", fname);
-        return;
-    }
-
-    png_init_io(png_ptr, fp);
-    png_set_compression_level(png_ptr, 0);
-
-    png_set_IHDR(png_ptr, info_ptr, img->width, img->height,
-                 8, PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE,
-                 PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
-
-    png_write_info(png_ptr, info_ptr);
-
-    png_set_bgr(png_ptr);
-
-    row_pointers = (png_byte **) malloc(img->height * sizeof(png_byte *));
-    for (k = 0; k < img->height; k++)
-        row_pointers[k] = img->buffer + img->stride * k;
-
-    png_write_image(png_ptr, row_pointers);
-    png_write_end(png_ptr, info_ptr);
-    png_destroy_write_struct(&png_ptr, &info_ptr);
-
-    free(row_pointers);
-
-    fclose(fp);
-}
-
-static void init(int frame_w, int frame_h)
-{
-    ass_library = ass_library_init();
-    if (!ass_library) {
-        printf("ass_library_init failed!\n");
-        exit(1);
-    }
-
-    ass_set_message_cb(ass_library, msg_callback, NULL);
-
-    ass_renderer = ass_renderer_init(ass_library);
-    if (!ass_renderer) {
-        printf("ass_renderer_init failed!\n");
-        exit(1);
-    }
-
-    ass_set_frame_size(ass_renderer, frame_w, frame_h);
-    ass_set_fonts(ass_renderer, NULL, "Sans", 1, NULL, 1);
-}
-
-static image_t *gen_image(int width, int height)
-{
-    image_t *img = malloc(sizeof(image_t));
-    img->width = width;
-    img->height = height;
-    img->stride = width * 3;
-    img->buffer = (unsigned char *) calloc(1, height * width * 3);
-    memset(img->buffer, 63, img->stride * img->height);
-    //for (int i = 0; i < height * width * 3; ++i)
-    // img->buffer[i] = (i/3/50) % 100;
-    return img;
-}
-
-#define _r(c)  ((c)>>24)
-#define _g(c)  (((c)>>16)&0xFF)
-#define _b(c)  (((c)>>8)&0xFF)
-#define _a(c)  ((c)&0xFF)
-
-static void blend_single(image_t * frame, ASS_Image *img)
-{
-    int x, y;
-    unsigned char opacity = 255 - _a(img->color);
-    unsigned char r = _r(img->color);
-    unsigned char g = _g(img->color);
-    unsigned char b = _b(img->color);
-
-    unsigned char *src;
-    unsigned char *dst;
-
-    src = img->bitmap;
-    dst = frame->buffer + img->dst_y * frame->stride + img->dst_x * 3;
-    for (y = 0; y < img->h; ++y) {
-        for (x = 0; x < img->w; ++x) {
-            unsigned k = ((unsigned) src[x]) * opacity / 255;
-            // possible endianness problems
-            dst[x * 3] = (k * b + (255 - k) * dst[x * 3]) / 255;
-            dst[x * 3 + 1] = (k * g + (255 - k) * dst[x * 3 + 1]) / 255;
-            dst[x * 3 + 2] = (k * r + (255 - k) * dst[x * 3 + 2]) / 255;
-        }
-        src += img->stride;
-        dst += frame->stride;
-    }
-}
-
-static void blend(image_t * frame, ASS_Image *img)
-{
-    int cnt = 0;
-    while (img) {
-        blend_single(frame, img);
-        ++cnt;
-        img = img->next;
-    }
-    printf("%d images blended\n", cnt);
-}
-
-int main(int argc, char *argv[])
-{
-    const int frame_w = 640;
-    const int frame_h = 480;
-
-    if (argc < 4) {
-        printf("usage: %s <image file> <subtitle file> <time>\n", argv[0]);
-        exit(1);
-    }
-    char *imgfile = argv[1];
-    char *subfile = argv[2];
-    double tm = strtod(argv[3], 0);
-
-    init(frame_w, frame_h);
-    ASS_Track *track = ass_read_file(ass_library, subfile, NULL);
-    if (!track) {
-        printf("track init failed!\n");
-        return 1;
-    }
-
-    ASS_Image *img =
-        ass_render_frame(ass_renderer, track, (int) (tm * 1000), NULL);
-    image_t *frame = gen_image(frame_w, frame_h);
-    blend(frame, img);
-
-    ass_free_track(track);
-    ass_renderer_done(ass_renderer);
-    ass_library_done(ass_library);
-
-    write_png(imgfile, frame);
-    free(frame->buffer);
-    free(frame);
-
-    return 0;
-}
diff --git a/lib/libass/xbmc/libass_win32/config.h b/lib/libass/xbmc/libass_win32/config.h
deleted file mode 100644
index ad0bc866fe..0000000000
--- a/lib/libass/xbmc/libass_win32/config.h
+++ /dev/null
@@ -1,183 +0,0 @@
-/* config.h.in.  Generated from configure.ac by autoheader.  */
-
-/* Define to 1 if you have the <dlfcn.h> header file. */
-#undef HAVE_DLFCN_H
-
-/* Define to 1 if you don't have `vprintf' but do have `_doprnt.' */
-#undef HAVE_DOPRNT
-
-/* use enca */
-#define CONFIG_ENCA 1
-
-/* Define to 1 if you have the <enca.h> header file. */
-#undef HAVE_ENCA_H
-
-/* found fontconfig via pkg-config */
-#define CONFIG_FONTCONFIG
-
-/* found freetype2 via pkg-config */
-#undef HAVE_FREETYPE
-
-/* Define to 1 if you have the <iconv.h> header file. */
-#undef HAVE_ICONV_H
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-#undef HAVE_INTTYPES_H
-
-/* use libpng */
-#undef HAVE_LIBPNG
-
-/* Define to 1 if your system has a GNU libc compatible `malloc' function, and
-   to 0 otherwise. */
-#undef HAVE_MALLOC
-
-/* Define to 1 if you have the <memory.h> header file. */
-#undef HAVE_MEMORY_H
-
-/* Define to 1 if you have the `memset' function. */
-#undef HAVE_MEMSET
-
-/* Define to 1 if you have the `mkdir' function. */
-#undef HAVE_MKDIR
-
-/* Define to 1 if your system has a GNU libc compatible `realloc' function,
-   and to 0 otherwise. */
-#undef HAVE_REALLOC
-
-/* Define to 1 if `stat' has the bug that it succeeds when given the
-   zero-length file name argument. */
-#undef HAVE_STAT_EMPTY_STRING_BUG
-
-/* Define to 1 if stdbool.h conforms to C99. */
-#undef HAVE_STDBOOL_H
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#undef HAVE_STDINT_H
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#undef HAVE_STDLIB_H
-
-/* Define to 1 if you have the `strcasecmp' function. */
-#undef HAVE_STRCASECMP
-
-/* Define to 1 if you have the `strchr' function. */
-#undef HAVE_STRCHR
-
-/* Define to 1 if you have the `strdup' function. */
-#undef HAVE_STRDUP
-
-/* Define to 1 if you have the `strerror' function. */
-#undef HAVE_STRERROR
-
-/* Define to 1 if you have the <strings.h> header file. */
-#undef HAVE_STRINGS_H
-
-/* Define to 1 if you have the <string.h> header file. */
-#undef HAVE_STRING_H
-
-/* Define to 1 if you have the `strstr' function. */
-#undef HAVE_STRSTR
-
-/* Define to 1 if you have the `strtol' function. */
-#undef HAVE_STRTOL
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#undef HAVE_SYS_STAT_H
-
-/* Define to 1 if you have the <sys/time.h> header file. */
-#undef HAVE_SYS_TIME_H
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#undef HAVE_SYS_TYPES_H
-
-/* Define to 1 if you have the <unistd.h> header file. */
-#undef HAVE_UNISTD_H
-
-/* Define to 1 if you have the `vprintf' function. */
-#undef HAVE_VPRINTF
-
-/* Define to 1 if the system has the type `_Bool'. */
-#undef HAVE__BOOL
-
-/* Define to 1 if `lstat' dereferences a symlink specified with a trailing
-   slash. */
-#undef LSTAT_FOLLOWS_SLASHED_SYMLINK
-
-/* Name of package */
-#undef PACKAGE
-
-/* Define to the address where bug reports for this package should be sent. */
-#undef PACKAGE_BUGREPORT
-
-/* Define to the full name of this package. */
-#undef PACKAGE_NAME
-
-/* Define to the full name and version of this package. */
-#undef PACKAGE_STRING
-
-/* Define to the one symbol short name of this package. */
-#undef PACKAGE_TARNAME
-
-/* Define to the version of this package. */
-#undef PACKAGE_VERSION
-
-/* Define to 1 if you have the ANSI C header files. */
-#undef STDC_HEADERS
-
-/* Define to 1 if your <sys/time.h> declares `struct tm'. */
-#undef TM_IN_SYS_TIME
-
-/* use iconv */
-#define CONFIG_ICONV 1
-
-/* Version number of package */
-#undef VERSION
-
-/* Define for Solaris 2.5.1 so the uint32_t typedef from <sys/synch.h>,
-   <pthread.h>, or <semaphore.h> is not used. If the typedef was allowed, the
-   #define below would cause a syntax error. */
-#undef _UINT32_T
-
-/* Define for Solaris 2.5.1 so the uint8_t typedef from <sys/synch.h>,
-   <pthread.h>, or <semaphore.h> is not used. If the typedef was allowed, the
-   #define below would cause a syntax error. */
-#undef _UINT8_T
-
-/* Define to empty if `const' does not conform to ANSI C. */
-#undef const
-
-/* Define to `__inline__' or `__inline' if that's what the C compiler
-   calls it, or to nothing if 'inline' is not supported under any name.  */
-#ifndef __cplusplus
-#define inline __inline
-#endif
-
-/* Define to the type of a signed integer type of width exactly 64 bits if
-   such a type exists and the standard includes do not define it. */
-#undef int64_t
-
-/* Define to rpl_malloc if the replacement function should be used. */
-#undef malloc
-
-/* Define to rpl_realloc if the replacement function should be used. */
-#undef realloc
-
-/* Define to `unsigned int' if <sys/types.h> does not define. */
-#undef size_t
-
-/* Define to the type of an unsigned integer type of width exactly 32 bits if
-   such a type exists and the standard includes do not define it. */
-#undef uint32_t
-
-/* Define to the type of an unsigned integer type of width exactly 8 bits if
-   such a type exists and the standard includes do not define it. */
-#undef uint8_t
-
-#ifndef M_PI
-#define M_PI 3.1415926535897932384626433832795
-#endif
-
-#define strncasecmp strnicmp
-#define strcasecmp stricmp
-
-#define strtoll(p, e, b) _strtoi64(p, e, b)
diff --git a/lib/libass/xbmc/libass_win32/getopt.h b/lib/libass/xbmc/libass_win32/getopt.h
deleted file mode 100644
index ff0251dec0..0000000000
--- a/lib/libass/xbmc/libass_win32/getopt.h
+++ /dev/null
@@ -1,193 +0,0 @@
-/* Declarations for getopt.
-   Copyright (C) 1989-1994,1996-1999,2001,2003,2004,2009
-   Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#ifndef _GETOPT_H
-
-#ifndef __need_getopt
-# define _GETOPT_H 1
-#endif
-
-/* If __GNU_LIBRARY__ is not already defined, either we are being used
-   standalone, or this is the first header included in the source file.
-   If we are being used with glibc, we need to include <features.h>, but
-   that does not exist if we are standalone.  So: if __GNU_LIBRARY__ is
-   not defined, include <ctype.h>, which will pull in <features.h> for us
-   if it's from glibc.  (Why ctype.h?  It's guaranteed to exist and it
-   doesn't flood the namespace with stuff the way some other headers do.)  */
-#if !defined __GNU_LIBRARY__
-# include <ctype.h>
-#endif
-
-#ifndef __THROW
-# ifndef __GNUC_PREREQ
-#  define __GNUC_PREREQ(maj, min) (0)
-# endif
-# if defined __cplusplus && __GNUC_PREREQ (2,8)
-#  define __THROW	throw ()
-# else
-#  define __THROW
-# endif
-#endif
-
-#ifdef	__cplusplus
-extern "C" {
-#endif
-
-/* For communication from `getopt' to the caller.
-   When `getopt' finds an option that takes an argument,
-   the argument value is returned here.
-   Also, when `ordering' is RETURN_IN_ORDER,
-   each non-option ARGV-element is returned here.  */
-
-extern char *optarg;
-
-/* Index in ARGV of the next element to be scanned.
-   This is used for communication to and from the caller
-   and for communication between successive calls to `getopt'.
-
-   On entry to `getopt', zero means this is the first call; initialize.
-
-   When `getopt' returns -1, this is the index of the first of the
-   non-option elements that the caller should itself scan.
-
-   Otherwise, `optind' communicates from one call to the next
-   how much of ARGV has been scanned so far.  */
-
-extern int optind;
-
-/* Callers store zero here to inhibit the error message `getopt' prints
-   for unrecognized options.  */
-
-extern int opterr;
-
-/* Set to an option character which was unrecognized.  */
-
-extern int optopt;
-
-#ifndef __need_getopt
-/* Describe the long-named options requested by the application.
-   The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
-   of `struct option' terminated by an element containing a name which is
-   zero.
-
-   The field `has_arg' is:
-   no_argument		(or 0) if the option does not take an argument,
-   required_argument	(or 1) if the option requires an argument,
-   optional_argument 	(or 2) if the option takes an optional argument.
-
-   If the field `flag' is not NULL, it points to a variable that is set
-   to the value given in the field `val' when the option is found, but
-   left unchanged if the option is not found.
-
-   To have a long-named option do something other than set an `int' to
-   a compiled-in constant, such as set a value from `optarg', set the
-   option's `flag' field to zero and its `val' field to a nonzero
-   value (the equivalent single-letter option character, if there is
-   one).  For long options that have a zero `flag' field, `getopt'
-   returns the contents of the `val' field.  */
-
-struct option
-{
-  const char *name;
-  /* has_arg can't be an enum because some compilers complain about
-     type mismatches in all the code that assumes it is an int.  */
-  int has_arg;
-  int *flag;
-  int val;
-};
-
-/* Names for the values of the `has_arg' field of `struct option'.  */
-
-# define no_argument		0
-# define required_argument	1
-# define optional_argument	2
-#endif	/* need getopt */
-
-
-/* Get definitions and prototypes for functions to process the
-   arguments in ARGV (ARGC of them, minus the program name) for
-   options given in OPTS.
-
-   Return the option character from OPTS just read.  Return -1 when
-   there are no more options.  For unrecognized options, or options
-   missing arguments, `optopt' is set to the option letter, and '?' is
-   returned.
-
-   The OPTS string is a list of characters which are recognized option
-   letters, optionally followed by colons, specifying that that letter
-   takes an argument, to be placed in `optarg'.
-
-   If a letter in OPTS is followed by two colons, its argument is
-   optional.  This behavior is specific to the GNU `getopt'.
-
-   The argument `--' causes premature termination of argument
-   scanning, explicitly telling `getopt' that there are no more
-   options.
-
-   If OPTS begins with `--', then non-option arguments are treated as
-   arguments to the option '\0'.  This behavior is specific to the GNU
-   `getopt'.  */
-
-#ifdef __GNU_LIBRARY__
-/* Many other libraries have conflicting prototypes for getopt, with
-   differences in the consts, in stdlib.h.  To avoid compilation
-   errors, only prototype getopt for the GNU C library.  */
-extern int getopt (int ___argc, char *const *___argv, const char *__shortopts)
-       __THROW;
-
-# if defined __need_getopt && defined __USE_POSIX2 \
-  && !defined __USE_POSIX_IMPLICITLY && !defined __USE_GNU
-/* The GNU getopt has more functionality than the standard version.  The
-   additional functionality can be disable at runtime.  This redirection
-   helps to also do this at runtime.  */
-#  ifdef __REDIRECT
-  extern int __REDIRECT (getopt, (int ___argc, char *const *___argv,
-				  const char *__shortopts),
-			 __posix_getopt) __THROW;
-#  else
-extern int __posix_getopt (int ___argc, char *const *___argv,
-			   const char *__shortopts) __THROW;
-#   define getopt __posix_getopt
-#  endif
-# endif
-#else /* not __GNU_LIBRARY__ */
-extern int getopt ();
-#endif /* __GNU_LIBRARY__ */
-
-#ifndef __need_getopt
-extern int getopt_long (int ___argc, char *const *___argv,
-			const char *__shortopts,
-		        const struct option *__longopts, int *__longind)
-       __THROW;
-extern int getopt_long_only (int ___argc, char *const *___argv,
-			     const char *__shortopts,
-		             const struct option *__longopts, int *__longind)
-       __THROW;
-
-#endif
-
-#ifdef	__cplusplus
-}
-#endif
-
-/* Make sure we later can get all the definitions and declarations.  */
-#undef __need_getopt
-
-#endif /* getopt.h */
diff --git a/lib/libass/xbmc/libass_win32/inttypes.h b/lib/libass/xbmc/libass_win32/inttypes.h
deleted file mode 100644
index 880d5329aa..0000000000
--- a/lib/libass/xbmc/libass_win32/inttypes.h
+++ /dev/null
@@ -1,306 +0,0 @@
-// ISO C9x  compliant inttypes.h for Microsoft Visual Studio
-// Based on ISO/IEC 9899:TC2 Committee draft (May 6, 2005) WG14/N1124 
-// 
-//  Copyright (c) 2006 Alexander Chemeris
-// 
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are met:
-// 
-//   1. Redistributions of source code must retain the above copyright notice,
-//      this list of conditions and the following disclaimer.
-// 
-//   2. Redistributions in binary form must reproduce the above copyright
-//      notice, this list of conditions and the following disclaimer in the
-//      documentation and/or other materials provided with the distribution.
-// 
-//   3. The name of the author may be used to endorse or promote products
-//      derived from this software without specific prior written permission.
-// 
-// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
-// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
-// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
-// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
-// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
-// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-// 
-///////////////////////////////////////////////////////////////////////////////
-
-#ifndef _MSC_VER // [
-#error "Use this header only with Microsoft Visual C++ compilers!"
-#endif // _MSC_VER ]
-
-#ifndef _MSC_INTTYPES_H_ // [
-#define _MSC_INTTYPES_H_
-
-#if _MSC_VER > 1000
-#pragma once
-#endif
-
-#include <stdint.h>
-
-// 7.8 Format conversion of integer types
-
-typedef struct {
-   intmax_t quot;
-   intmax_t rem;
-} imaxdiv_t;
-
-// 7.8.1 Macros for format specifiers
-
-#if !defined(__cplusplus) || defined(__STDC_FORMAT_MACROS) // [   See footnote 185 at page 198
-
-// The fprintf macros for signed integers are:
-#define PRId8       "d"
-#define PRIi8       "i"
-#define PRIdLEAST8  "d"
-#define PRIiLEAST8  "i"
-#define PRIdFAST8   "d"
-#define PRIiFAST8   "i"
-
-#define PRId16       "hd"
-#define PRIi16       "hi"
-#define PRIdLEAST16  "hd"
-#define PRIiLEAST16  "hi"
-#define PRIdFAST16   "hd"
-#define PRIiFAST16   "hi"
-
-#define PRId32       "I32d"
-#define PRIi32       "I32i"
-#define PRIdLEAST32  "I32d"
-#define PRIiLEAST32  "I32i"
-#define PRIdFAST32   "I32d"
-#define PRIiFAST32   "I32i"
-
-#define PRId64       "I64d"
-#define PRIi64       "I64i"
-#define PRIdLEAST64  "I64d"
-#define PRIiLEAST64  "I64i"
-#define PRIdFAST64   "I64d"
-#define PRIiFAST64   "I64i"
-
-#define PRIdMAX     "I64d"
-#define PRIiMAX     "I64i"
-
-#define PRIdPTR     "Id"
-#define PRIiPTR     "Ii"
-
-// The fprintf macros for unsigned integers are:
-#define PRIo8       "o"
-#define PRIu8       "u"
-#define PRIx8       "x"
-#define PRIX8       "X"
-#define PRIoLEAST8  "o"
-#define PRIuLEAST8  "u"
-#define PRIxLEAST8  "x"
-#define PRIXLEAST8  "X"
-#define PRIoFAST8   "o"
-#define PRIuFAST8   "u"
-#define PRIxFAST8   "x"
-#define PRIXFAST8   "X"
-
-#define PRIo16       "ho"
-#define PRIu16       "hu"
-#define PRIx16       "hx"
-#define PRIX16       "hX"
-#define PRIoLEAST16  "ho"
-#define PRIuLEAST16  "hu"
-#define PRIxLEAST16  "hx"
-#define PRIXLEAST16  "hX"
-#define PRIoFAST16   "ho"
-#define PRIuFAST16   "hu"
-#define PRIxFAST16   "hx"
-#define PRIXFAST16   "hX"
-
-#define PRIo32       "I32o"
-#define PRIu32       "I32u"
-#define PRIx32       "I32x"
-#define PRIX32       "I32X"
-#define PRIoLEAST32  "I32o"
-#define PRIuLEAST32  "I32u"
-#define PRIxLEAST32  "I32x"
-#define PRIXLEAST32  "I32X"
-#define PRIoFAST32   "I32o"
-#define PRIuFAST32   "I32u"
-#define PRIxFAST32   "I32x"
-#define PRIXFAST32   "I32X"
-
-#define PRIo64       "I64o"
-#define PRIu64       "I64u"
-#define PRIx64       "I64x"
-#define PRIX64       "I64X"
-#define PRIoLEAST64  "I64o"
-#define PRIuLEAST64  "I64u"
-#define PRIxLEAST64  "I64x"
-#define PRIXLEAST64  "I64X"
-#define PRIoFAST64   "I64o"
-#define PRIuFAST64   "I64u"
-#define PRIxFAST64   "I64x"
-#define PRIXFAST64   "I64X"
-
-#define PRIoMAX     "I64o"
-#define PRIuMAX     "I64u"
-#define PRIxMAX     "I64x"
-#define PRIXMAX     "I64X"
-
-#define PRIoPTR     "Io"
-#define PRIuPTR     "Iu"
-#define PRIxPTR     "Ix"
-#define PRIXPTR     "IX"
-
-// The fscanf macros for signed integers are:
-#define SCNd8       "d"
-#define SCNi8       "i"
-#define SCNdLEAST8  "d"
-#define SCNiLEAST8  "i"
-#define SCNdFAST8   "d"
-#define SCNiFAST8   "i"
-
-#define SCNd16       "hd"
-#define SCNi16       "hi"
-#define SCNdLEAST16  "hd"
-#define SCNiLEAST16  "hi"
-#define SCNdFAST16   "hd"
-#define SCNiFAST16   "hi"
-
-#define SCNd32       "ld"
-#define SCNi32       "li"
-#define SCNdLEAST32  "ld"
-#define SCNiLEAST32  "li"
-#define SCNdFAST32   "ld"
-#define SCNiFAST32   "li"
-
-#define SCNd64       "I64d"
-#define SCNi64       "I64i"
-#define SCNdLEAST64  "I64d"
-#define SCNiLEAST64  "I64i"
-#define SCNdFAST64   "I64d"
-#define SCNiFAST64   "I64i"
-
-#define SCNdMAX     "I64d"
-#define SCNiMAX     "I64i"
-
-#ifdef _WIN64 // [
-#  define SCNdPTR     "I64d"
-#  define SCNiPTR     "I64i"
-#else  // _WIN64 ][
-#  define SCNdPTR     "ld"
-#  define SCNiPTR     "li"
-#endif  // _WIN64 ]
-
-// The fscanf macros for unsigned integers are:
-#define SCNo8       "o"
-#define SCNu8       "u"
-#define SCNx8       "x"
-#define SCNX8       "X"
-#define SCNoLEAST8  "o"
-#define SCNuLEAST8  "u"
-#define SCNxLEAST8  "x"
-#define SCNXLEAST8  "X"
-#define SCNoFAST8   "o"
-#define SCNuFAST8   "u"
-#define SCNxFAST8   "x"
-#define SCNXFAST8   "X"
-
-#define SCNo16       "ho"
-#define SCNu16       "hu"
-#define SCNx16       "hx"
-#define SCNX16       "hX"
-#define SCNoLEAST16  "ho"
-#define SCNuLEAST16  "hu"
-#define SCNxLEAST16  "hx"
-#define SCNXLEAST16  "hX"
-#define SCNoFAST16   "ho"
-#define SCNuFAST16   "hu"
-#define SCNxFAST16   "hx"
-#define SCNXFAST16   "hX"
-
-#define SCNo32       "lo"
-#define SCNu32       "lu"
-#define SCNx32       "lx"
-#define SCNX32       "lX"
-#define SCNoLEAST32  "lo"
-#define SCNuLEAST32  "lu"
-#define SCNxLEAST32  "lx"
-#define SCNXLEAST32  "lX"
-#define SCNoFAST32   "lo"
-#define SCNuFAST32   "lu"
-#define SCNxFAST32   "lx"
-#define SCNXFAST32   "lX"
-
-#define SCNo64       "I64o"
-#define SCNu64       "I64u"
-#define SCNx64       "I64x"
-#define SCNX64       "I64X"
-#define SCNoLEAST64  "I64o"
-#define SCNuLEAST64  "I64u"
-#define SCNxLEAST64  "I64x"
-#define SCNXLEAST64  "I64X"
-#define SCNoFAST64   "I64o"
-#define SCNuFAST64   "I64u"
-#define SCNxFAST64   "I64x"
-#define SCNXFAST64   "I64X"
-
-#define SCNoMAX     "I64o"
-#define SCNuMAX     "I64u"
-#define SCNxMAX     "I64x"
-#define SCNXMAX     "I64X"
-
-#ifdef _WIN64 // [
-#  define SCNoPTR     "I64o"
-#  define SCNuPTR     "I64u"
-#  define SCNxPTR     "I64x"
-#  define SCNXPTR     "I64X"
-#else  // _WIN64 ][
-#  define SCNoPTR     "lo"
-#  define SCNuPTR     "lu"
-#  define SCNxPTR     "lx"
-#  define SCNXPTR     "lX"
-#endif  // _WIN64 ]
-
-#endif // __STDC_FORMAT_MACROS ]
-
-// 7.8.2 Functions for greatest-width integer types
-
-// 7.8.2.1 The imaxabs function
-#define imaxabs _abs64
-
-// 7.8.2.2 The imaxdiv function
-
-// This is modified version of div() function from Microsoft's div.c found
-// in %MSVC.NET%\crt\src\div.c
-#ifdef STATIC_IMAXDIV // [
-static
-#else // STATIC_IMAXDIV ][
-_inline
-#endif // STATIC_IMAXDIV ]
-imaxdiv_t __cdecl imaxdiv(intmax_t numer, intmax_t denom)
-{
-   imaxdiv_t result;
-
-   result.quot = numer / denom;
-   result.rem = numer % denom;
-
-   if (numer < 0 && result.rem > 0) {
-      // did division wrong; must fix up
-      ++result.quot;
-      result.rem -= denom;
-   }
-
-   return result;
-}
-
-// 7.8.2.3 The strtoimax and strtoumax functions
-#define strtoimax _strtoi64
-#define strtoumax _strtoui64
-
-// 7.8.2.4 The wcstoimax and wcstoumax functions
-#define wcstoimax _wcstoi64
-#define wcstoumax _wcstoui64
-
-#define ssize_t int
-
-#endif // _MSC_INTTYPES_H_ ]
diff --git a/lib/libass/xbmc/libass_win32/libass.def b/lib/libass/xbmc/libass_win32/libass.def
deleted file mode 100644
index 07faca3f60..0000000000
--- a/lib/libass/xbmc/libass_win32/libass.def
+++ /dev/null
@@ -1,38 +0,0 @@
-LIBRARY  libass.dll
-EXPORTS
-
-ass_library_init        @1
-ass_library_done        @2
-ass_set_fonts_dir       @3
-ass_set_extract_fonts   @4
-ass_set_style_overrides @5
-ass_process_force_style @6
-ass_set_message_cb      @7
-ass_renderer_init       @8
-ass_renderer_done       @9
-ass_set_frame_size      @10
-ass_set_margins         @11
-ass_set_use_margins     @12
-ass_set_aspect_ratio    @13
-ass_set_font_scale      @14
-ass_set_hinting         @15
-ass_set_line_spacing    @16
-ass_set_fonts           @17
-ass_fonts_update        @18
-ass_set_cache_limits    @19
-ass_render_frame        @20
-ass_new_track           @21
-ass_free_track          @22
-ass_alloc_style         @23
-ass_alloc_event         @24
-ass_free_style          @25
-ass_free_event          @26
-ass_process_data        @27
-ass_process_codec_private @28
-ass_process_chunk       @29
-ass_read_file           @30
-ass_read_memory         @31
-ass_read_styles         @32
-ass_add_font            @33
-ass_clear_fonts         @34
-ass_step_sub            @35
\ No newline at end of file
diff --git a/lib/libass/xbmc/libass_win32/libass_win32_vs2008.sln b/lib/libass/xbmc/libass_win32/libass_win32_vs2008.sln
deleted file mode 100644
index 5e22aa1cac..0000000000
--- a/lib/libass/xbmc/libass_win32/libass_win32_vs2008.sln
+++ /dev/null
@@ -1,20 +0,0 @@
-
-Microsoft Visual Studio Solution File, Format Version 10.00
-# Visual C++ Express 2008
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libass_win32", "libass_win32_vs2008.vcproj", "{BA5B08FC-2ECB-4571-9F25-F8054522FC65}"
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Win32 = Debug|Win32
-		Release|Win32 = Release|Win32
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{BA5B08FC-2ECB-4571-9F25-F8054522FC65}.Debug|Win32.ActiveCfg = Debug|Win32
-		{BA5B08FC-2ECB-4571-9F25-F8054522FC65}.Debug|Win32.Build.0 = Debug|Win32
-		{BA5B08FC-2ECB-4571-9F25-F8054522FC65}.Release|Win32.ActiveCfg = Release|Win32
-		{BA5B08FC-2ECB-4571-9F25-F8054522FC65}.Release|Win32.Build.0 = Release|Win32
-	EndGlobalSection
-	GlobalSection(SolutionProperties) = preSolution
-		HideSolutionNode = FALSE
-	EndGlobalSection
-EndGlobal
diff --git a/lib/libass/xbmc/libass_win32/libass_win32_vs2010.vcxproj b/lib/libass/xbmc/libass_win32/libass_win32_vs2010.vcxproj
deleted file mode 100644
index 0b226a1605..0000000000
--- a/lib/libass/xbmc/libass_win32/libass_win32_vs2010.vcxproj
+++ /dev/null
@@ -1,178 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <ItemGroup Label="ProjectConfigurations">
-    <ProjectConfiguration Include="Debug|Win32">
-      <Configuration>Debug</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Release|Win32">
-      <Configuration>Release</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
-  </ItemGroup>
-  <PropertyGroup Label="Globals">
-    <ProjectName>libass_dll</ProjectName>
-    <ProjectGuid>{BA5B08FC-2ECB-4571-9F25-F8054522FC65}</ProjectGuid>
-    <RootNamespace>libass_win32</RootNamespace>
-    <Keyword>Win32Proj</Keyword>
-  </PropertyGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
-    <ConfigurationType>DynamicLibrary</ConfigurationType>
-    <UseDebugLibraries>false</UseDebugLibraries>
-    <CharacterSet>Unicode</CharacterSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
-    <ConfigurationType>DynamicLibrary</ConfigurationType>
-    <UseDebugLibraries>true</UseDebugLibraries>
-    <CharacterSet>Unicode</CharacterSet>
-  </PropertyGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
-  <ImportGroup Label="ExtensionSettings">
-  </ImportGroup>
-  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="PropertySheets">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-    <Import Project="..\..\..\..\project\VS2010Express\XBMC for Windows.props" />
-  </ImportGroup>
-  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="PropertySheets">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-    <Import Project="..\..\..\..\project\VS2010Express\XBMC for Windows.props" />
-  </ImportGroup>
-  <PropertyGroup Label="UserMacros" />
-  <PropertyGroup>
-    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
-    <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(SolutionDir)libs\$(TargetName)\$(Configuration)\</OutDir>
-    <IntDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(SolutionDir)objs\$(TargetName)\$(Configuration)\</IntDir>
-    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</LinkIncremental>
-    <OutDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(SolutionDir)libs\$(TargetName)\$(Configuration)\</OutDir>
-    <IntDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(SolutionDir)objs\$(TargetName)\$(Configuration)\</IntDir>
-    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">false</LinkIncremental>
-    <TargetName Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">libass</TargetName>
-    <TargetName Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">libass</TargetName>
-    <CustomBuildAfterTargets Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">Build</CustomBuildAfterTargets>
-    <CustomBuildAfterTargets Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">Build</CustomBuildAfterTargets>
-  </PropertyGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
-    <ClCompile>
-      <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>.\;..\..\..\enca\lib;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;_USRDLL;LIBASS_WIN32_EXPORTS;CONFIG_HARFBUZZ;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <MinimalRebuild>true</MinimalRebuild>
-      <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
-      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
-      <PrecompiledHeader>
-      </PrecompiledHeader>
-      <WarningLevel>Level3</WarningLevel>
-      <DebugInformationFormat>EditAndContinue</DebugInformationFormat>
-      <DisableSpecificWarnings>4001;4996;4244;4267;4018;4005;%(DisableSpecificWarnings)</DisableSpecificWarnings>
-      <CompileAs>CompileAsC</CompileAs>
-      <EnableEnhancedInstructionSet>StreamingSIMDExtensions2</EnableEnhancedInstructionSet>
-    </ClCompile>
-    <Link>
-      <AdditionalDependencies>fontconfig.lib;zlib.lib;harfbuzz.lib;%(AdditionalDependencies)</AdditionalDependencies>
-      <OutputFile>$(OutDir)$(TargetName)$(TargetExt)</OutputFile>
-      <IgnoreSpecificDefaultLibraries>libcmt;libcmtd;msvcrt;%(IgnoreSpecificDefaultLibraries)</IgnoreSpecificDefaultLibraries>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
-      <ProgramDatabaseFile>Debug/libass_win32.pdb</ProgramDatabaseFile>
-      <SubSystem>Windows</SubSystem>
-      <RandomizedBaseAddress>false</RandomizedBaseAddress>
-      <DataExecutionPrevention>
-      </DataExecutionPrevention>
-      <ImportLibrary>$(Configuration)\vs2010\$(TargetName)_win32.lib</ImportLibrary>
-      <TargetMachine>MachineX86</TargetMachine>
-      <AdditionalLibraryDirectories>
-      </AdditionalLibraryDirectories>
-      <ModuleDefinitionFile>libass.def</ModuleDefinitionFile>
-    </Link>
-    <CustomBuildStep>
-      <Command>copy /B /Y "$(TargetPath)" "$(SolutionDir)..\..\system\players\dvdplayer\$(TargetFileName)"</Command>
-      <Message>Copy Output</Message>
-      <Outputs>$(SolutionDir)..\..\system\players\dvdplayer\$(TargetFileName)</Outputs>
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-    <ClCompile>
-      <Optimization>Full</Optimization>
-      <AdditionalIncludeDirectories>.\;..\..\..\enca\lib;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;LIBASS_WIN32_EXPORTS;CONFIG_HARFBUZZ;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
-      <PrecompiledHeader>
-      </PrecompiledHeader>
-      <WarningLevel>Level3</WarningLevel>
-      <DebugInformationFormat>
-      </DebugInformationFormat>
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-      <EnableEnhancedInstructionSet>StreamingSIMDExtensions2</EnableEnhancedInstructionSet>
-    </ClCompile>
-    <Link>
-      <AdditionalDependencies>fontconfig.lib;zlib.lib;harfbuzz.lib;%(AdditionalDependencies)</AdditionalDependencies>
-      <OutputFile>$(OutDir)$(TargetName)$(TargetExt)</OutputFile>
-      <IgnoreSpecificDefaultLibraries>libcmt;libcmtd;%(IgnoreSpecificDefaultLibraries)</IgnoreSpecificDefaultLibraries>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
-      <ProgramDatabaseFile>Release/$(TargetName).pdb</ProgramDatabaseFile>
-      <SubSystem>Windows</SubSystem>
-      <OptimizeReferences>true</OptimizeReferences>
-      <EnableCOMDATFolding>true</EnableCOMDATFolding>
-      <RandomizedBaseAddress>false</RandomizedBaseAddress>
-      <DataExecutionPrevention>
-      </DataExecutionPrevention>
-      <ImportLibrary>$(Configuration)\vs2010\$(TargetName)_win32.lib</ImportLibrary>
-      <TargetMachine>MachineX86</TargetMachine>
-      <AdditionalLibraryDirectories>
-      </AdditionalLibraryDirectories>
-      <ModuleDefinitionFile>libass.def</ModuleDefinitionFile>
-    </Link>
-    <CustomBuildStep>
-      <Command>copy /B /Y "$(TargetPath)" "$(SolutionDir)..\..\system\players\dvdplayer\$(TargetFileName)"</Command>
-      <Message>Copy Output</Message>
-      <Inputs>$(TargetPath)</Inputs>
-      <Outputs>$(SolutionDir)..\..\system\players\dvdplayer\$(TargetFileName)</Outputs>
-    </CustomBuildStep>
-  </ItemDefinitionGroup>
-  <ItemGroup>
-    <ClInclude Include="..\..\libass\ass.h" />
-    <ClInclude Include="..\..\libass\ass_bitmap.h" />
-    <ClInclude Include="..\..\libass\ass_cache.h" />
-    <ClInclude Include="..\..\libass\ass_cache_template.h" />
-    <ClInclude Include="..\..\libass\ass_drawing.h" />
-    <ClInclude Include="..\..\libass\ass_font.h" />
-    <ClInclude Include="..\..\libass\ass_fontconfig.h" />
-    <ClInclude Include="..\..\libass\ass_library.h" />
-    <ClInclude Include="..\..\libass\ass_parse.h" />
-    <ClInclude Include="..\..\libass\ass_render.h" />
-    <ClInclude Include="..\..\libass\ass_shaper.h" />
-    <ClInclude Include="..\..\libass\ass_types.h" />
-    <ClInclude Include="..\..\libass\ass_utils.h" />
-    <ClInclude Include="config.h" />
-  </ItemGroup>
-  <ItemGroup>
-    <ClCompile Include="..\..\libass\ass.c" />
-    <ClCompile Include="..\..\libass\ass_bitmap.c" />
-    <ClCompile Include="..\..\libass\ass_cache.c" />
-    <ClCompile Include="..\..\libass\ass_drawing.c" />
-    <ClCompile Include="..\..\libass\ass_font.c" />
-    <ClCompile Include="..\..\libass\ass_fontconfig.c" />
-    <ClCompile Include="..\..\libass\ass_library.c" />
-    <ClCompile Include="..\..\libass\ass_parse.c" />
-    <ClCompile Include="..\..\libass\ass_render.c" />
-    <ClCompile Include="..\..\libass\ass_render_api.c" />
-    <ClCompile Include="..\..\libass\ass_shaper.c" />
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-    <ClCompile Include="..\..\libass\ass_utils.c">
-      <CompileAs Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">Default</CompileAs>
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-  </ItemGroup>
-  <ItemGroup>
-    <ProjectReference Include="..\..\..\enca\libenca_win32\libenca_win32.vcxproj">
-      <Project>{22b25aec-7223-46fc-8356-4418327efde1}</Project>
-      <ReferenceOutputAssembly>false</ReferenceOutputAssembly>
-    </ProjectReference>
-  </ItemGroup>
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-    <None Include="libass.def" />
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-</Project>
diff --git a/lib/libass/xbmc/libass_win32/stdint.h b/lib/libass/xbmc/libass_win32/stdint.h
deleted file mode 100644
index b23840f1d5..0000000000
--- a/lib/libass/xbmc/libass_win32/stdint.h
+++ /dev/null
@@ -1,222 +0,0 @@
-// ISO C9x  compliant stdint.h for Microsoft Visual Studio
-// Based on ISO/IEC 9899:TC2 Committee draft (May 6, 2005) WG14/N1124 
-// 
-//  Copyright (c) 2006 Alexander Chemeris
-// 
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are met:
-// 
-//   1. Redistributions of source code must retain the above copyright notice,
-//      this list of conditions and the following disclaimer.
-// 
-//   2. Redistributions in binary form must reproduce the above copyright
-//      notice, this list of conditions and the following disclaimer in the
-//      documentation and/or other materials provided with the distribution.
-// 
-//   3. The name of the author may be used to endorse or promote products
-//      derived from this software without specific prior written permission.
-// 
-// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
-// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
-// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
-// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
-// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
-// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-// 
-///////////////////////////////////////////////////////////////////////////////
-
-#ifndef _MSC_VER // [
-#error "Use this header only with Microsoft Visual C++ compilers!"
-#endif // _MSC_VER ]
-
-#ifndef _MSC_STDINT_H_ // [
-#define _MSC_STDINT_H_
-
-#if _MSC_VER > 1000
-#pragma once
-#endif
-
-#include <limits.h>
-
-// For Visual Studio 6 in C++ mode wrap <wchar.h> include with 'extern "C++" {}'
-// or compiler give many errors like this:
-//   error C2733: second C linkage of overloaded function 'wmemchr' not allowed
-#if (_MSC_VER < 1300) && defined(__cplusplus)
-   extern "C++" {
-#endif 
-#     include <wchar.h>
-#if (_MSC_VER < 1300) && defined(__cplusplus)
-   }
-#endif
-
-// 7.18.1 Integer types
-
-// 7.18.1.1 Exact-width integer types
-typedef __int8            int8_t;
-typedef __int16           int16_t;
-typedef __int32           int32_t;
-typedef __int64           int64_t;
-typedef unsigned __int8   uint8_t;
-typedef unsigned __int16  uint16_t;
-typedef unsigned __int32  uint32_t;
-typedef unsigned __int64  uint64_t;
-
-// 7.18.1.2 Minimum-width integer types
-typedef int8_t    int_least8_t;
-typedef int16_t   int_least16_t;
-typedef int32_t   int_least32_t;
-typedef int64_t   int_least64_t;
-typedef uint8_t   uint_least8_t;
-typedef uint16_t  uint_least16_t;
-typedef uint32_t  uint_least32_t;
-typedef uint64_t  uint_least64_t;
-
-// 7.18.1.3 Fastest minimum-width integer types
-typedef int8_t    int_fast8_t;
-typedef int16_t   int_fast16_t;
-typedef int32_t   int_fast32_t;
-typedef int64_t   int_fast64_t;
-typedef uint8_t   uint_fast8_t;
-typedef uint16_t  uint_fast16_t;
-typedef uint32_t  uint_fast32_t;
-typedef uint64_t  uint_fast64_t;
-
-// 7.18.1.4 Integer types capable of holding object pointers
-#ifdef _WIN64 // [
-   typedef __int64           intptr_t;
-   typedef unsigned __int64  uintptr_t;
-#else // _WIN64 ][
-   typedef int               intptr_t;
-   typedef unsigned int      uintptr_t;
-#endif // _WIN64 ]
-
-// 7.18.1.5 Greatest-width integer types
-typedef int64_t   intmax_t;
-typedef uint64_t  uintmax_t;
-
-
-// 7.18.2 Limits of specified-width integer types
-
-#if !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS) // [   See footnote 220 at page 257 and footnote 221 at page 259
-
-// 7.18.2.1 Limits of exact-width integer types
-#define INT8_MIN     ((int8_t)_I8_MIN)
-#define INT8_MAX     _I8_MAX
-#define INT16_MIN    ((int16_t)_I16_MIN)
-#define INT16_MAX    _I16_MAX
-#define INT32_MIN    ((int32_t)_I32_MIN)
-#define INT32_MAX    _I32_MAX
-#define INT64_MIN    ((int64_t)_I64_MIN)
-#define INT64_MAX    _I64_MAX
-#define UINT8_MAX    _UI8_MAX
-#define UINT16_MAX   _UI16_MAX
-#define UINT32_MAX   _UI32_MAX
-#define UINT64_MAX   _UI64_MAX
-
-// 7.18.2.2 Limits of minimum-width integer types
-#define INT_LEAST8_MIN    INT8_MIN
-#define INT_LEAST8_MAX    INT8_MAX
-#define INT_LEAST16_MIN   INT16_MIN
-#define INT_LEAST16_MAX   INT16_MAX
-#define INT_LEAST32_MIN   INT32_MIN
-#define INT_LEAST32_MAX   INT32_MAX
-#define INT_LEAST64_MIN   INT64_MIN
-#define INT_LEAST64_MAX   INT64_MAX
-#define UINT_LEAST8_MAX   UINT8_MAX
-#define UINT_LEAST16_MAX  UINT16_MAX
-#define UINT_LEAST32_MAX  UINT32_MAX
-#define UINT_LEAST64_MAX  UINT64_MAX
-
-// 7.18.2.3 Limits of fastest minimum-width integer types
-#define INT_FAST8_MIN    INT8_MIN
-#define INT_FAST8_MAX    INT8_MAX
-#define INT_FAST16_MIN   INT16_MIN
-#define INT_FAST16_MAX   INT16_MAX
-#define INT_FAST32_MIN   INT32_MIN
-#define INT_FAST32_MAX   INT32_MAX
-#define INT_FAST64_MIN   INT64_MIN
-#define INT_FAST64_MAX   INT64_MAX
-#define UINT_FAST8_MAX   UINT8_MAX
-#define UINT_FAST16_MAX  UINT16_MAX
-#define UINT_FAST32_MAX  UINT32_MAX
-#define UINT_FAST64_MAX  UINT64_MAX
-
-// 7.18.2.4 Limits of integer types capable of holding object pointers
-#ifdef _WIN64 // [
-#  define INTPTR_MIN   INT64_MIN
-#  define INTPTR_MAX   INT64_MAX
-#  define UINTPTR_MAX  UINT64_MAX
-#else // _WIN64 ][
-#  define INTPTR_MIN   INT32_MIN
-#  define INTPTR_MAX   INT32_MAX
-#  define UINTPTR_MAX  UINT32_MAX
-#endif // _WIN64 ]
-
-// 7.18.2.5 Limits of greatest-width integer types
-#define INTMAX_MIN   INT64_MIN
-#define INTMAX_MAX   INT64_MAX
-#define UINTMAX_MAX  UINT64_MAX
-
-// 7.18.3 Limits of other integer types
-
-#ifdef _WIN64 // [
-#  define PTRDIFF_MIN  _I64_MIN
-#  define PTRDIFF_MAX  _I64_MAX
-#else  // _WIN64 ][
-#  define PTRDIFF_MIN  _I32_MIN
-#  define PTRDIFF_MAX  _I32_MAX
-#endif  // _WIN64 ]
-
-#define SIG_ATOMIC_MIN  INT_MIN
-#define SIG_ATOMIC_MAX  INT_MAX
-
-#ifndef SIZE_MAX // [
-#  ifdef _WIN64 // [
-#     define SIZE_MAX  _UI64_MAX
-#  else // _WIN64 ][
-#     define SIZE_MAX  _UI32_MAX
-#  endif // _WIN64 ]
-#endif // SIZE_MAX ]
-
-// WCHAR_MIN and WCHAR_MAX are also defined in <wchar.h>
-#ifndef WCHAR_MIN // [
-#  define WCHAR_MIN  0
-#endif  // WCHAR_MIN ]
-#ifndef WCHAR_MAX // [
-#  define WCHAR_MAX  _UI16_MAX
-#endif  // WCHAR_MAX ]
-
-#define WINT_MIN  0
-#define WINT_MAX  _UI16_MAX
-
-#endif // __STDC_LIMIT_MACROS ]
-
-
-// 7.18.4 Limits of other integer types
-
-#if !defined(__cplusplus) || defined(__STDC_CONSTANT_MACROS) // [   See footnote 224 at page 260
-
-// 7.18.4.1 Macros for minimum-width integer constants
-
-#define INT8_C(val)  val##i8
-#define INT16_C(val) val##i16
-#define INT32_C(val) val##i32
-//#define INT64_C(val) val##i64
-
-#define UINT8_C(val)  val##ui8
-#define UINT16_C(val) val##ui16
-#define UINT32_C(val) val##ui32
-//#define UINT64_C(val) val##ui64
-
-// 7.18.4.2 Macros for greatest-width integer constants
-#define INTMAX_C   INT64_C
-#define UINTMAX_C  UINT64_C
-
-#endif // __STDC_CONSTANT_MACROS ]
-
-
-#endif // _MSC_STDINT_H_ ]
diff --git a/lib/libass/xbmc/libass_win32/unistd.h b/lib/libass/xbmc/libass_win32/unistd.h
deleted file mode 100644
index 4799c2bffe..0000000000
--- a/lib/libass/xbmc/libass_win32/unistd.h
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * This file is part of the Mingw32 package.
- *
- * unistd.h maps (roughly) to io.h
- */
-
-#ifndef _UNISTD_H
-#define _UNISTD_H
-
-#include <io.h>
-#include <process.h>
-
-#define __UNISTD_GETOPT__
-#include <getopt.h>
-#undef __UNISTD_GETOPT__
-
-/* These are also defined in stdio.h. */
-#ifndef	SEEK_SET
-#define SEEK_SET 0
-#endif
-
-#ifndef	SEEK_CUR
-#define SEEK_CUR 1
-#endif
-
-#ifndef SEEK_END
-#define SEEK_END 2
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-/* This is defined as a real library function to allow autoconf
-   to verify its existence. */
-//int ftruncate(int, off_t);
-//__CRT_INLINE int ftruncate(int __fd, off_t __length)
-//{
-//  return _chsize (__fd, __length);
-//}
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _UNISTD_H */