aboutsummaryrefslogtreecommitdiff
path: root/multimedia
diff options
context:
space:
mode:
authorHunter Sezen <orbea@riseup.net>2021-01-01 20:21:24 +0000
committerWilly Sudiarto Raharjo <willysr@slackbuilds.org>2021-01-02 10:48:25 +0700
commitbd6f874c6f0711a9ccc3b742a4ae9e4cc7fdcabe (patch)
treecf1b81fae2036afefa0073ff89cbe29f43406141 /multimedia
parent010c2e6dadaafa06da6b72fe4aa6197a502beb03 (diff)
multimedia/vapoursynth: Added (video processing framework)
Signed-off-by: Dave Woodfall <dave@slackbuilds.org> Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>
Diffstat (limited to 'multimedia')
-rw-r--r--multimedia/vapoursynth/650.patch560
-rw-r--r--multimedia/vapoursynth/README3
-rw-r--r--multimedia/vapoursynth/slack-desc19
-rw-r--r--multimedia/vapoursynth/vapoursynth.SlackBuild100
-rw-r--r--multimedia/vapoursynth/vapoursynth.info10
5 files changed, 692 insertions, 0 deletions
diff --git a/multimedia/vapoursynth/650.patch b/multimedia/vapoursynth/650.patch
new file mode 100644
index 000000000000..6c2358b95112
--- /dev/null
+++ b/multimedia/vapoursynth/650.patch
@@ -0,0 +1,560 @@
+From 14b36ee7a300aa47e08df06241bc409e213edff2 Mon Sep 17 00:00:00 2001
+From: orbea <orbea@riseup.net>
+Date: Fri, 1 Jan 2021 06:28:18 -0800
+Subject: [PATCH] Add missing pthread dependency.
+
+---
+ Makefile.am | 5 +-
+ configure.ac | 1 +
+ m4/ax_pthread.m4 | 507 +++++++++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 511 insertions(+), 2 deletions(-)
+ create mode 100644 m4/ax_pthread.m4
+
+diff --git a/Makefile.am b/Makefile.am
+index 123a3488..3844afb7 100644
+--- a/Makefile.am
++++ b/Makefile.am
+@@ -2,6 +2,7 @@ warningflags = -Wall -Wextra -Wno-unused-parameter -Wno-unused-function -Wno-ign
+ commoncflags = -O3 -fvisibility=hidden $(warningflags) -I$(srcdir)/include $(DEBUGCFLAGS) $(MFLAGS) $(UNICODECFLAGS) $(STACKREALIGN)
+ AM_CXXFLAGS = -std=c++11 $(commoncflags)
+ AM_CFLAGS = -std=c99 $(commoncflags)
++ACLOCAL_AMFLAGS = -I m4
+
+
+
+@@ -80,8 +81,8 @@ pkginclude_HEADERS = include/VapourSynth.h \
+ pkgconfig_DATA += pc/vapoursynth.pc
+
+ libvapoursynth_la_LDFLAGS = -no-undefined -avoid-version
+-libvapoursynth_la_CPPFLAGS = $(ZIMG_CFLAGS) -DVS_PATH_PLUGINDIR='"$(PLUGINDIR)"'
+-libvapoursynth_la_LIBADD = $(ZIMG_LIBS) $(DLOPENLIB) libexprfilter.la
++libvapoursynth_la_CPPFLAGS = $(PTHREAD_CFLAGS) $(ZIMG_CFLAGS) -DVS_PATH_PLUGINDIR='"$(PLUGINDIR)"'
++libvapoursynth_la_LIBADD = $(PTHREAD_LIBS) $(ZIMG_LIBS) $(DLOPENLIB) libexprfilter.la
+
+
+ if X86ASM
+diff --git a/configure.ac b/configure.ac
+index b898d411..1566c6e0 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -14,6 +14,7 @@ AC_PROG_CXX
+
+ AC_SYS_LARGEFILE
+ AC_FUNC_FSEEKO
++AX_PTHREAD
+
+
+ AC_ARG_ENABLE([debug], AS_HELP_STRING([--enable-debug], [Enable compilation options required for debugging. (default=no)]))
+diff --git a/m4/ax_pthread.m4 b/m4/ax_pthread.m4
+new file mode 100644
+index 00000000..1598d077
+--- /dev/null
++++ b/m4/ax_pthread.m4
+@@ -0,0 +1,507 @@
++# ===========================================================================
++# https://www.gnu.org/software/autoconf-archive/ax_pthread.html
++# ===========================================================================
++#
++# SYNOPSIS
++#
++# AX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
++#
++# DESCRIPTION
++#
++# This macro figures out how to build C programs using POSIX threads. It
++# sets the PTHREAD_LIBS output variable to the threads library and linker
++# flags, and the PTHREAD_CFLAGS output variable to any special C compiler
++# flags that are needed. (The user can also force certain compiler
++# flags/libs to be tested by setting these environment variables.)
++#
++# Also sets PTHREAD_CC to any special C compiler that is needed for
++# multi-threaded programs (defaults to the value of CC otherwise). (This
++# is necessary on AIX to use the special cc_r compiler alias.)
++#
++# NOTE: You are assumed to not only compile your program with these flags,
++# but also to link with them as well. For example, you might link with
++# $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS $LIBS
++#
++# If you are only building threaded programs, you may wish to use these
++# variables in your default LIBS, CFLAGS, and CC:
++#
++# LIBS="$PTHREAD_LIBS $LIBS"
++# CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
++# CC="$PTHREAD_CC"
++#
++# In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute constant
++# has a nonstandard name, this macro defines PTHREAD_CREATE_JOINABLE to
++# that name (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
++#
++# Also HAVE_PTHREAD_PRIO_INHERIT is defined if pthread is found and the
++# PTHREAD_PRIO_INHERIT symbol is defined when compiling with
++# PTHREAD_CFLAGS.
++#
++# ACTION-IF-FOUND is a list of shell commands to run if a threads library
++# is found, and ACTION-IF-NOT-FOUND is a list of commands to run it if it
++# is not found. If ACTION-IF-FOUND is not specified, the default action
++# will define HAVE_PTHREAD.
++#
++# Please let the authors know if this macro fails on any platform, or if
++# you have any other suggestions or comments. This macro was based on work
++# by SGJ on autoconf scripts for FFTW (http://www.fftw.org/) (with help
++# from M. Frigo), as well as ac_pthread and hb_pthread macros posted by
++# Alejandro Forero Cuervo to the autoconf macro repository. We are also
++# grateful for the helpful feedback of numerous users.
++#
++# Updated for Autoconf 2.68 by Daniel Richard G.
++#
++# LICENSE
++#
++# Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu>
++# Copyright (c) 2011 Daniel Richard G. <skunk@iSKUNK.ORG>
++# Copyright (c) 2019 Marc Stevens <marc.stevens@cwi.nl>
++#
++# This program is free software: you can redistribute it and/or modify it
++# under the terms of the GNU General Public License as published by the
++# Free Software Foundation, either version 3 of the License, or (at your
++# option) any later version.
++#
++# This program 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 General
++# Public License for more details.
++#
++# You should have received a copy of the GNU General Public License along
++# with this program. If not, see <https://www.gnu.org/licenses/>.
++#
++# As a special exception, the respective Autoconf Macro's copyright owner
++# gives unlimited permission to copy, distribute and modify the configure
++# scripts that are the output of Autoconf when processing the Macro. You
++# need not follow the terms of the GNU General Public License when using
++# or distributing such scripts, even though portions of the text of the
++# Macro appear in them. The GNU General Public License (GPL) does govern
++# all other use of the material that constitutes the Autoconf Macro.
++#
++# This special exception to the GPL applies to versions of the Autoconf
++# Macro released by the Autoconf Archive. When you make and distribute a
++# modified version of the Autoconf Macro, you may extend this special
++# exception to the GPL to apply to your modified version as well.
++
++#serial 27
++
++AU_ALIAS([ACX_PTHREAD], [AX_PTHREAD])
++AC_DEFUN([AX_PTHREAD], [
++AC_REQUIRE([AC_CANONICAL_HOST])
++AC_REQUIRE([AC_PROG_CC])
++AC_REQUIRE([AC_PROG_SED])
++AC_LANG_PUSH([C])
++ax_pthread_ok=no
++
++# We used to check for pthread.h first, but this fails if pthread.h
++# requires special compiler flags (e.g. on Tru64 or Sequent).
++# It gets checked for in the link test anyway.
++
++# First of all, check if the user has set any of the PTHREAD_LIBS,
++# etcetera environment variables, and if threads linking works using
++# them:
++if test "x$PTHREAD_CFLAGS$PTHREAD_LIBS" != "x"; then
++ ax_pthread_save_CC="$CC"
++ ax_pthread_save_CFLAGS="$CFLAGS"
++ ax_pthread_save_LIBS="$LIBS"
++ AS_IF([test "x$PTHREAD_CC" != "x"], [CC="$PTHREAD_CC"])
++ CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
++ LIBS="$PTHREAD_LIBS $LIBS"
++ AC_MSG_CHECKING([for pthread_join using $CC $PTHREAD_CFLAGS $PTHREAD_LIBS])
++ AC_LINK_IFELSE([AC_LANG_CALL([], [pthread_join])], [ax_pthread_ok=yes])
++ AC_MSG_RESULT([$ax_pthread_ok])
++ if test "x$ax_pthread_ok" = "xno"; then
++ PTHREAD_LIBS=""
++ PTHREAD_CFLAGS=""
++ fi
++ CC="$ax_pthread_save_CC"
++ CFLAGS="$ax_pthread_save_CFLAGS"
++ LIBS="$ax_pthread_save_LIBS"
++fi
++
++# We must check for the threads library under a number of different
++# names; the ordering is very important because some systems
++# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
++# libraries is broken (non-POSIX).
++
++# Create a list of thread flags to try. Items with a "," contain both
++# C compiler flags (before ",") and linker flags (after ","). Other items
++# starting with a "-" are C compiler flags, and remaining items are
++# library names, except for "none" which indicates that we try without
++# any flags at all, and "pthread-config" which is a program returning
++# the flags for the Pth emulation library.
++
++ax_pthread_flags="pthreads none -Kthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
++
++# The ordering *is* (sometimes) important. Some notes on the
++# individual items follow:
++
++# pthreads: AIX (must check this before -lpthread)
++# none: in case threads are in libc; should be tried before -Kthread and
++# other compiler flags to prevent continual compiler warnings
++# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
++# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads), Tru64
++# (Note: HP C rejects this with "bad form for `-t' option")
++# -pthreads: Solaris/gcc (Note: HP C also rejects)
++# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
++# doesn't hurt to check since this sometimes defines pthreads and
++# -D_REENTRANT too), HP C (must be checked before -lpthread, which
++# is present but should not be used directly; and before -mthreads,
++# because the compiler interprets this as "-mt" + "-hreads")
++# -mthreads: Mingw32/gcc, Lynx/gcc
++# pthread: Linux, etcetera
++# --thread-safe: KAI C++
++# pthread-config: use pthread-config program (for GNU Pth library)
++
++case $host_os in
++
++ freebsd*)
++
++ # -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
++ # lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
++
++ ax_pthread_flags="-kthread lthread $ax_pthread_flags"
++ ;;
++
++ hpux*)
++
++ # From the cc(1) man page: "[-mt] Sets various -D flags to enable
++ # multi-threading and also sets -lpthread."
++
++ ax_pthread_flags="-mt -pthread pthread $ax_pthread_flags"
++ ;;
++
++ openedition*)
++
++ # IBM z/OS requires a feature-test macro to be defined in order to
++ # enable POSIX threads at all, so give the user a hint if this is
++ # not set. (We don't define these ourselves, as they can affect
++ # other portions of the system API in unpredictable ways.)
++
++ AC_EGREP_CPP([AX_PTHREAD_ZOS_MISSING],
++ [
++# if !defined(_OPEN_THREADS) && !defined(_UNIX03_THREADS)
++ AX_PTHREAD_ZOS_MISSING
++# endif
++ ],
++ [AC_MSG_WARN([IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support.])])
++ ;;
++
++ solaris*)
++
++ # On Solaris (at least, for some versions), libc contains stubbed
++ # (non-functional) versions of the pthreads routines, so link-based
++ # tests will erroneously succeed. (N.B.: The stubs are missing
++ # pthread_cleanup_push, or rather a function called by this macro,
++ # so we could check for that, but who knows whether they'll stub
++ # that too in a future libc.) So we'll check first for the
++ # standard Solaris way of linking pthreads (-mt -lpthread).
++
++ ax_pthread_flags="-mt,-lpthread pthread $ax_pthread_flags"
++ ;;
++esac
++
++# Are we compiling with Clang?
++
++AC_CACHE_CHECK([whether $CC is Clang],
++ [ax_cv_PTHREAD_CLANG],
++ [ax_cv_PTHREAD_CLANG=no
++ # Note that Autoconf sets GCC=yes for Clang as well as GCC
++ if test "x$GCC" = "xyes"; then
++ AC_EGREP_CPP([AX_PTHREAD_CC_IS_CLANG],
++ [/* Note: Clang 2.7 lacks __clang_[a-z]+__ */
++# if defined(__clang__) && defined(__llvm__)
++ AX_PTHREAD_CC_IS_CLANG
++# endif
++ ],
++ [ax_cv_PTHREAD_CLANG=yes])
++ fi
++ ])
++ax_pthread_clang="$ax_cv_PTHREAD_CLANG"
++
++
++# GCC generally uses -pthread, or -pthreads on some platforms (e.g. SPARC)
++
++# Note that for GCC and Clang -pthread generally implies -lpthread,
++# except when -nostdlib is passed.
++# This is problematic using libtool to build C++ shared libraries with pthread:
++# [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=25460
++# [2] https://bugzilla.redhat.com/show_bug.cgi?id=661333
++# [3] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=468555
++# To solve this, first try -pthread together with -lpthread for GCC
++
++AS_IF([test "x$GCC" = "xyes"],
++ [ax_pthread_flags="-pthread,-lpthread -pthread -pthreads $ax_pthread_flags"])
++
++# Clang takes -pthread (never supported any other flag), but we'll try with -lpthread first
++
++AS_IF([test "x$ax_pthread_clang" = "xyes"],
++ [ax_pthread_flags="-pthread,-lpthread -pthread"])
++
++
++# The presence of a feature test macro requesting re-entrant function
++# definitions is, on some systems, a strong hint that pthreads support is
++# correctly enabled
++
++case $host_os in
++ darwin* | hpux* | linux* | osf* | solaris*)
++ ax_pthread_check_macro="_REENTRANT"
++ ;;
++
++ aix*)
++ ax_pthread_check_macro="_THREAD_SAFE"
++ ;;
++
++ *)
++ ax_pthread_check_macro="--"
++ ;;
++esac
++AS_IF([test "x$ax_pthread_check_macro" = "x--"],
++ [ax_pthread_check_cond=0],
++ [ax_pthread_check_cond="!defined($ax_pthread_check_macro)"])
++
++
++if test "x$ax_pthread_ok" = "xno"; then
++for ax_pthread_try_flag in $ax_pthread_flags; do
++
++ case $ax_pthread_try_flag in
++ none)
++ AC_MSG_CHECKING([whether pthreads work without any flags])
++ ;;
++
++ *,*)
++ PTHREAD_CFLAGS=`echo $ax_pthread_try_flag | sed "s/^\(.*\),\(.*\)$/\1/"`
++ PTHREAD_LIBS=`echo $ax_pthread_try_flag | sed "s/^\(.*\),\(.*\)$/\2/"`
++ AC_MSG_CHECKING([whether pthreads work with "$PTHREAD_CFLAGS" and "$PTHREAD_LIBS"])
++ ;;
++
++ -*)
++ AC_MSG_CHECKING([whether pthreads work with $ax_pthread_try_flag])
++ PTHREAD_CFLAGS="$ax_pthread_try_flag"
++ ;;
++
++ pthread-config)
++ AC_CHECK_PROG([ax_pthread_config], [pthread-config], [yes], [no])
++ AS_IF([test "x$ax_pthread_config" = "xno"], [continue])
++ PTHREAD_CFLAGS="`pthread-config --cflags`"
++ PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
++ ;;
++
++ *)
++ AC_MSG_CHECKING([for the pthreads library -l$ax_pthread_try_flag])
++ PTHREAD_LIBS="-l$ax_pthread_try_flag"
++ ;;
++ esac
++
++ ax_pthread_save_CFLAGS="$CFLAGS"
++ ax_pthread_save_LIBS="$LIBS"
++ CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
++ LIBS="$PTHREAD_LIBS $LIBS"
++
++ # Check for various functions. We must include pthread.h,
++ # since some functions may be macros. (On the Sequent, we
++ # need a special flag -Kthread to make this header compile.)
++ # We check for pthread_join because it is in -lpthread on IRIX
++ # while pthread_create is in libc. We check for pthread_attr_init
++ # due to DEC craziness with -lpthreads. We check for
++ # pthread_cleanup_push because it is one of the few pthread
++ # functions on Solaris that doesn't have a non-functional libc stub.
++ # We try pthread_create on general principles.
++
++ AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <pthread.h>
++# if $ax_pthread_check_cond
++# error "$ax_pthread_check_macro must be defined"
++# endif
++ static void *some_global = NULL;
++ static void routine(void *a)
++ {
++ /* To avoid any unused-parameter or
++ unused-but-set-parameter warning. */
++ some_global = a;
++ }
++ static void *start_routine(void *a) { return a; }],
++ [pthread_t th; pthread_attr_t attr;
++ pthread_create(&th, 0, start_routine, 0);
++ pthread_join(th, 0);
++ pthread_attr_init(&attr);
++ pthread_cleanup_push(routine, 0);
++ pthread_cleanup_pop(0) /* ; */])],
++ [ax_pthread_ok=yes],
++ [])
++
++ CFLAGS="$ax_pthread_save_CFLAGS"
++ LIBS="$ax_pthread_save_LIBS"
++
++ AC_MSG_RESULT([$ax_pthread_ok])
++ AS_IF([test "x$ax_pthread_ok" = "xyes"], [break])
++
++ PTHREAD_LIBS=""
++ PTHREAD_CFLAGS=""
++done
++fi
++
++
++# Clang needs special handling, because older versions handle the -pthread
++# option in a rather... idiosyncratic way
++
++if test "x$ax_pthread_clang" = "xyes"; then
++
++ # Clang takes -pthread; it has never supported any other flag
++
++ # (Note 1: This will need to be revisited if a system that Clang
++ # supports has POSIX threads in a separate library. This tends not
++ # to be the way of modern systems, but it's conceivable.)
++
++ # (Note 2: On some systems, notably Darwin, -pthread is not needed
++ # to get POSIX threads support; the API is always present and
++ # active. We could reasonably leave PTHREAD_CFLAGS empty. But
++ # -pthread does define _REENTRANT, and while the Darwin headers
++ # ignore this macro, third-party headers might not.)
++
++ # However, older versions of Clang make a point of warning the user
++ # that, in an invocation where only linking and no compilation is
++ # taking place, the -pthread option has no effect ("argument unused
++ # during compilation"). They expect -pthread to be passed in only
++ # when source code is being compiled.
++ #
++ # Problem is, this is at odds with the way Automake and most other
++ # C build frameworks function, which is that the same flags used in
++ # compilation (CFLAGS) are also used in linking. Many systems
++ # supported by AX_PTHREAD require exactly this for POSIX threads
++ # support, and in fact it is often not straightforward to specify a
++ # flag that is used only in the compilation phase and not in
++ # linking. Such a scenario is extremely rare in practice.
++ #
++ # Even though use of the -pthread flag in linking would only print
++ # a warning, this can be a nuisance for well-run software projects
++ # that build with -Werror. So if the active version of Clang has
++ # this misfeature, we search for an option to squash it.
++
++ AC_CACHE_CHECK([whether Clang needs flag to prevent "argument unused" warning when linking with -pthread],
++ [ax_cv_PTHREAD_CLANG_NO_WARN_FLAG],
++ [ax_cv_PTHREAD_CLANG_NO_WARN_FLAG=unknown
++ # Create an alternate version of $ac_link that compiles and
++ # links in two steps (.c -> .o, .o -> exe) instead of one
++ # (.c -> exe), because the warning occurs only in the second
++ # step
++ ax_pthread_save_ac_link="$ac_link"
++ ax_pthread_sed='s/conftest\.\$ac_ext/conftest.$ac_objext/g'
++ ax_pthread_link_step=`$as_echo "$ac_link" | sed "$ax_pthread_sed"`
++ ax_pthread_2step_ac_link="($ac_compile) && (echo ==== >&5) && ($ax_pthread_link_step)"
++ ax_pthread_save_CFLAGS="$CFLAGS"
++ for ax_pthread_try in '' -Qunused-arguments -Wno-unused-command-line-argument unknown; do
++ AS_IF([test "x$ax_pthread_try" = "xunknown"], [break])
++ CFLAGS="-Werror -Wunknown-warning-option $ax_pthread_try -pthread $ax_pthread_save_CFLAGS"
++ ac_link="$ax_pthread_save_ac_link"
++ AC_LINK_IFELSE([AC_LANG_SOURCE([[int main(void){return 0;}]])],
++ [ac_link="$ax_pthread_2step_ac_link"
++ AC_LINK_IFELSE([AC_LANG_SOURCE([[int main(void){return 0;}]])],
++ [break])
++ ])
++ done
++ ac_link="$ax_pthread_save_ac_link"
++ CFLAGS="$ax_pthread_save_CFLAGS"
++ AS_IF([test "x$ax_pthread_try" = "x"], [ax_pthread_try=no])
++ ax_cv_PTHREAD_CLANG_NO_WARN_FLAG="$ax_pthread_try"
++ ])
++
++ case "$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" in
++ no | unknown) ;;
++ *) PTHREAD_CFLAGS="$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG $PTHREAD_CFLAGS" ;;
++ esac
++
++fi # $ax_pthread_clang = yes
++
++
++
++# Various other checks:
++if test "x$ax_pthread_ok" = "xyes"; then
++ ax_pthread_save_CFLAGS="$CFLAGS"
++ ax_pthread_save_LIBS="$LIBS"
++ CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
++ LIBS="$PTHREAD_LIBS $LIBS"
++
++ # Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
++ AC_CACHE_CHECK([for joinable pthread attribute],
++ [ax_cv_PTHREAD_JOINABLE_ATTR],
++ [ax_cv_PTHREAD_JOINABLE_ATTR=unknown
++ for ax_pthread_attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
++ AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <pthread.h>],
++ [int attr = $ax_pthread_attr; return attr /* ; */])],
++ [ax_cv_PTHREAD_JOINABLE_ATTR=$ax_pthread_attr; break],
++ [])
++ done
++ ])
++ AS_IF([test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xunknown" && \
++ test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xPTHREAD_CREATE_JOINABLE" && \
++ test "x$ax_pthread_joinable_attr_defined" != "xyes"],
++ [AC_DEFINE_UNQUOTED([PTHREAD_CREATE_JOINABLE],
++ [$ax_cv_PTHREAD_JOINABLE_ATTR],
++ [Define to necessary symbol if this constant
++ uses a non-standard name on your system.])
++ ax_pthread_joinable_attr_defined=yes
++ ])
++
++ AC_CACHE_CHECK([whether more special flags are required for pthreads],
++ [ax_cv_PTHREAD_SPECIAL_FLAGS],
++ [ax_cv_PTHREAD_SPECIAL_FLAGS=no
++ case $host_os in
++ solaris*)
++ ax_cv_PTHREAD_SPECIAL_FLAGS="-D_POSIX_PTHREAD_SEMANTICS"
++ ;;
++ esac
++ ])
++ AS_IF([test "x$ax_cv_PTHREAD_SPECIAL_FLAGS" != "xno" && \
++ test "x$ax_pthread_special_flags_added" != "xyes"],
++ [PTHREAD_CFLAGS="$ax_cv_PTHREAD_SPECIAL_FLAGS $PTHREAD_CFLAGS"
++ ax_pthread_special_flags_added=yes])
++
++ AC_CACHE_CHECK([for PTHREAD_PRIO_INHERIT],
++ [ax_cv_PTHREAD_PRIO_INHERIT],
++ [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <pthread.h>]],
++ [[int i = PTHREAD_PRIO_INHERIT;
++ return i;]])],
++ [ax_cv_PTHREAD_PRIO_INHERIT=yes],
++ [ax_cv_PTHREAD_PRIO_INHERIT=no])
++ ])
++ AS_IF([test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes" && \
++ test "x$ax_pthread_prio_inherit_defined" != "xyes"],
++ [AC_DEFINE([HAVE_PTHREAD_PRIO_INHERIT], [1], [Have PTHREAD_PRIO_INHERIT.])
++ ax_pthread_prio_inherit_defined=yes
++ ])
++
++ CFLAGS="$ax_pthread_save_CFLAGS"
++ LIBS="$ax_pthread_save_LIBS"
++
++ # More AIX lossage: compile with *_r variant
++ if test "x$GCC" != "xyes"; then
++ case $host_os in
++ aix*)
++ AS_CASE(["x/$CC"],
++ [x*/c89|x*/c89_128|x*/c99|x*/c99_128|x*/cc|x*/cc128|x*/xlc|x*/xlc_v6|x*/xlc128|x*/xlc128_v6],
++ [#handle absolute path differently from PATH based program lookup
++ AS_CASE(["x$CC"],
++ [x/*],
++ [AS_IF([AS_EXECUTABLE_P([${CC}_r])],[PTHREAD_CC="${CC}_r"])],
++ [AC_CHECK_PROGS([PTHREAD_CC],[${CC}_r],[$CC])])])
++ ;;
++ esac
++ fi
++fi
++
++test -n "$PTHREAD_CC" || PTHREAD_CC="$CC"
++
++AC_SUBST([PTHREAD_LIBS])
++AC_SUBST([PTHREAD_CFLAGS])
++AC_SUBST([PTHREAD_CC])
++
++# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
++if test "x$ax_pthread_ok" = "xyes"; then
++ ifelse([$1],,[AC_DEFINE([HAVE_PTHREAD],[1],[Define if you have POSIX threads libraries and header files.])],[$1])
++ :
++else
++ ax_pthread_ok=no
++ $2
++fi
++AC_LANG_POP
++])dnl AX_PTHREAD
diff --git a/multimedia/vapoursynth/README b/multimedia/vapoursynth/README
new file mode 100644
index 000000000000..76b8668386cf
--- /dev/null
+++ b/multimedia/vapoursynth/README
@@ -0,0 +1,3 @@
+VapourSynth is an application for video manipulation. Or a plugin. Or
+a library. It’s hard to tell because it has a core library written
+in C++ and a Python module to allow video scripts to be created.
diff --git a/multimedia/vapoursynth/slack-desc b/multimedia/vapoursynth/slack-desc
new file mode 100644
index 000000000000..c247102a84a9
--- /dev/null
+++ b/multimedia/vapoursynth/slack-desc
@@ -0,0 +1,19 @@
+# HOW TO EDIT THIS FILE:
+# The "handy ruler" below makes it easier to edit a package description.
+# Line up the first '|' above the ':' following the base package name, and
+# the '|' on the right side marks the last column you can put a character in.
+# You must make exactly 11 lines for the formatting to be correct. It's also
+# customary to leave one space after the ':' except on otherwise blank lines.
+
+ |-----handy-ruler------------------------------------------------------|
+vapoursynth: vapoursynth (video processing framework)
+vapoursynth:
+vapoursynth: A video processing framework with simplicity in mind.
+vapoursynth:
+vapoursynth: Homepage: https://www.vapoursynth.com/
+vapoursynth:
+vapoursynth:
+vapoursynth:
+vapoursynth:
+vapoursynth:
+vapoursynth:
diff --git a/multimedia/vapoursynth/vapoursynth.SlackBuild b/multimedia/vapoursynth/vapoursynth.SlackBuild
new file mode 100644
index 000000000000..72a383dbf943
--- /dev/null
+++ b/multimedia/vapoursynth/vapoursynth.SlackBuild
@@ -0,0 +1,100 @@
+#!/bin/sh
+
+# Slackware build script for vapoursynth
+
+# Copyright 2020 Hunter Sezen California, USA
+# All rights reserved.
+#
+# Redistribution and use of this script, with or without modification, is
+# permitted provided that the following conditions are met:
+#
+# 1. Redistributions of this script must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# 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.
+
+PRGNAM=vapoursynth
+VERSION=${VERSION:-R52}
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+
+if [ -z "$ARCH" ]; then
+ case "$( uname -m )" in
+ i?86) ARCH=i586 ;;
+ arm*) ARCH=arm ;;
+ *) ARCH=$( uname -m ) ;;
+ esac
+fi
+
+CWD=$(pwd)
+TMP=${TMP:-/tmp/SBo}
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+if [ "$ARCH" = "i586" ]; then
+ SLKCFLAGS="-O2 -march=i586 -mtune=i686"
+ LIBDIRSUFFIX=""
+elif [ "$ARCH" = "i686" ]; then
+ SLKCFLAGS="-O2 -march=i686 -mtune=i686"
+ LIBDIRSUFFIX=""
+elif [ "$ARCH" = "x86_64" ]; then
+ SLKCFLAGS="-O2 -fPIC"
+ LIBDIRSUFFIX="64"
+else
+ SLKCFLAGS="-O2"
+ LIBDIRSUFFIX=""
+fi
+
+set -eu
+
+rm -rf $PKG
+mkdir -p $TMP $PKG $OUTPUT
+cd $TMP
+rm -rf $PRGNAM-$VERSION
+tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
+cd $PRGNAM-$VERSION
+chown -R root:root .
+find -L . \
+ \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
+ -o -perm 511 \) -exec chmod 755 {} \; -o \
+ \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
+ -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
+
+# Fix undefined reference.
+# https://github.com/vapoursynth/vapoursynth/pull/650
+patch -p1 < $CWD/650.patch
+
+autoreconf -fi
+
+CFLAGS="$SLKCFLAGS" \
+CXXFLAGS="$SLKCFLAGS" \
+./configure \
+ --prefix=/usr \
+ --libdir=/usr/lib${LIBDIRSUFFIX} \
+ --disable-static \
+ --build=$ARCH-slackware-linux
+
+make
+make install DESTDIR=$PKG
+
+find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" |
+ grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
+
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+cp -a COPYING.LESSER ChangeLog README.md $PKG/usr/doc/$PRGNAM-$VERSION
+cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
+
+mkdir -p $PKG/install
+cat $CWD/slack-desc > $PKG/install/slack-desc
+
+cd $PKG
+/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}
diff --git a/multimedia/vapoursynth/vapoursynth.info b/multimedia/vapoursynth/vapoursynth.info
new file mode 100644
index 000000000000..de096be1a1b8
--- /dev/null
+++ b/multimedia/vapoursynth/vapoursynth.info
@@ -0,0 +1,10 @@
+PRGNAM="vapoursynth"
+VERSION="R52"
+HOMEPAGE="https://www.vapoursynth.com/"
+DOWNLOAD="https://github.com/vapoursynth/vapoursynth/archive/R52/vapoursynth-R52.tar.gz"
+MD5SUM="e6b37c3c7af6902f3835182292668550"
+DOWNLOAD_x86_64=""
+MD5SUM_x86_64=""
+REQUIRES="python3-Cython zimg"
+MAINTAINER="Hunter Sezen"
+EMAIL="orbea@riseup.net"