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Diffstat (limited to 'cmake/modules/FindFFMPEG.cmake')
| -rw-r--r-- | cmake/modules/FindFFMPEG.cmake | 292 |
1 files changed, 292 insertions, 0 deletions
diff --git a/cmake/modules/FindFFMPEG.cmake b/cmake/modules/FindFFMPEG.cmake new file mode 100644 index 0000000000..3d7fcc8ca3 --- /dev/null +++ b/cmake/modules/FindFFMPEG.cmake @@ -0,0 +1,292 @@ +# FindFFMPEG +# -------- +# Finds FFmpeg libraries +# +# This module will first look for the required library versions on the system. +# If they are not found, it will fall back to downloading and building kodi's own version +# +# -------- +# the following variables influence behaviour: +# ENABLE_INTERNAL_FFMPEG - if enabled, kodi's own version will always be built +# +# FFMPEG_PATH - use external ffmpeg not found in system paths +# usage: -DFFMPEG_PATH=/path/to/ffmpeg_install_prefix +# +# WITH_FFMPEG - use external ffmpeg not found in system paths +# WARNING: this option is for developers as it will _disable ffmpeg version checks_! +# Consider using FFMPEG_PATH instead, which _does_ check library versions +# usage: -DWITH_FFMPEG=/path/to/ffmpeg_install_prefix +# +# -------- +# This module will will define the following variables: +# +# FFMPEG_FOUND - system has FFmpeg +# FFMPEG_INCLUDE_DIRS - FFmpeg include directory +# FFMPEG_LIBRARIES - FFmpeg libraries +# FFMPEG_DEFINITIONS - pre-processor definitions +# FFMPEG_LDFLAGS - linker flags +# +# and the following imported targets:: +# +# ffmpeg - The FFmpeg libraries +# -------- +# + +# required ffmpeg library versions +set(REQUIRED_FFMPEG_VERSION 3.1) +set(_avcodec_ver ">=57.48.101") +set(_avfilter_ver ">=6.47.100") +set(_avformat_ver ">=57.41.100") +set(_avutil_ver ">=55.28.100") +set(_swscale_ver ">=4.1.100") +set(_swresample_ver ">=2.1.100") +set(_postproc_ver ">=54.0.100") + + +# Allows building with external ffmpeg not found in system paths, +# without library version checks +if(WITH_FFMPEG) + set(FFMPEG_PATH ${WITH_FFMPEG}) + message(STATUS "Warning: FFmpeg version checking disabled") + set(REQUIRED_FFMPEG_VERSION undef) + unset(_avcodec_ver) + unset(_avfilter_ver) + unset(_avformat_ver) + unset(_avutil_ver) + unset(_swscale_ver) + unset(_swresample_ver) + unset(_postproc_ver) +endif() + +# Allows building with external ffmpeg not found in system paths, +# with library version checks +if(FFMPEG_PATH) + set(ENABLE_INTERNAL_FFMPEG OFF) +endif() + +# external FFMPEG +if(NOT ENABLE_INTERNAL_FFMPEG OR KODI_DEPENDSBUILD) + if(FFMPEG_PATH) + set(ENV{PKG_CONFIG_PATH} "${FFMPEG_PATH}/lib/pkgconfig") + list(APPEND CMAKE_PREFIX_PATH ${FFMPEG_PATH}) + endif() + + set(FFMPEG_PKGS libavcodec${_avcodec_ver} + libavfilter${_avfilter_ver} + libavformat${_avformat_ver} + libavutil${_avutil_ver} + libswscale${_swscale_ver} + libswresample${_swresample_ver} + libpostproc${_postproc_ver}) + + if(PKG_CONFIG_FOUND) + pkg_check_modules(PC_FFMPEG ${FFMPEG_PKGS} QUIET) + string(REGEX REPLACE "framework;" "framework " PC_FFMPEG_LDFLAGS "${PC_FFMPEG_LDFLAGS}") + endif() + + find_path(FFMPEG_INCLUDE_DIRS libavcodec/avcodec.h libavfilter/avfilter.h libavformat/avformat.h + libavutil/avutil.h libswscale/swscale.h libpostproc/postprocess.h + PATH_SUFFIXES ffmpeg + PATHS ${PC_FFMPEG_INCLUDE_DIRS} + NO_DEFAULT_PATH) + find_path(FFMPEG_INCLUDE_DIRS libavcodec/avcodec.h libavfilter/avfilter.h libavformat/avformat.h + libavutil/avutil.h libswscale/swscale.h libpostproc/postprocess.h) + + find_library(FFMPEG_LIBAVCODEC + NAMES avcodec libavcodec + PATH_SUFFIXES ffmpeg/libavcodec + PATHS ${PC_FFMPEG_libavcodec_LIBDIR} + NO_DEFAULT_PATH) + find_library(FFMPEG_LIBAVCODEC NAMES avcodec libavcodec PATH_SUFFIXES ffmpeg/libavcodec) + + find_library(FFMPEG_LIBAVFILTER + NAMES avfilter libavfilter + PATH_SUFFIXES ffmpeg/libavfilter + PATHS ${PC_FFMPEG_libavfilter_LIBDIR} + NO_DEFAULT_PATH) + find_library(FFMPEG_LIBAVFILTER NAMES avfilter libavfilter PATH_SUFFIXES ffmpeg/libavfilter) + + find_library(FFMPEG_LIBAVFORMAT + NAMES avformat libavformat + PATH_SUFFIXES ffmpeg/libavformat + PATHS ${PC_FFMPEG_libavformat_LIBDIR} + NO_DEFAULT_PATH) + find_library(FFMPEG_LIBAVFORMAT NAMES avformat libavformat PATH_SUFFIXES ffmpeg/libavformat) + + find_library(FFMPEG_LIBAVUTIL + NAMES avutil libavutil + PATH_SUFFIXES ffmpeg/libavutil + PATHS ${PC_FFMPEG_libavutil_LIBDIR} + NO_DEFAULT_PATH) + find_library(FFMPEG_LIBAVUTIL NAMES avutil libavutil PATH_SUFFIXES ffmpeg/libavutil) + + find_library(FFMPEG_LIBSWSCALE + NAMES swscale libswscale + PATH_SUFFIXES ffmpeg/libswscale + PATHS ${PC_FFMPEG_libswscale_LIBDIR} + NO_DEFAULT_PATH) + find_library(FFMPEG_LIBSWSCALE NAMES swscale libswscale PATH_SUFFIXES ffmpeg/libswscale) + + find_library(FFMPEG_LIBSWRESAMPLE + NAMES swresample libswresample + PATH_SUFFIXES ffmpeg/libswresample + PATHS ${PC_FFMPEG_libswresample_LIBDIR} + NO_DEFAULT_PATH) + find_library(FFMPEG_LIBSWRESAMPLE NAMES NAMES swresample libswresample PATH_SUFFIXES ffmpeg/libswresample) + + find_library(FFMPEG_LIBPOSTPROC + NAMES postproc libpostproc + PATH_SUFFIXES ffmpeg/libpostproc + PATHS ${PC_FFMPEG_libpostproc_LIBDIR} + NO_DEFAULT_PATH) + find_library(FFMPEG_LIBPOSTPROC NAMES postproc libpostproc PATH_SUFFIXES ffmpeg/libpostproc) + + if((PC_FFMPEG_FOUND + AND PC_FFMPEG_libavcodec_VERSION + AND PC_FFMPEG_libavfilter_VERSION + AND PC_FFMPEG_libavformat_VERSION + AND PC_FFMPEG_libavutil_VERSION + AND PC_FFMPEG_libswscale_VERSION + AND PC_FFMPEG_libswresample_VERSION + AND PC_FFMPEG_libpostproc_VERSION) + OR WIN32) + set(FFMPEG_VERSION ${REQUIRED_FFMPEG_VERSION}) + + + include(FindPackageHandleStandardArgs) + find_package_handle_standard_args(FFMPEG + VERSION_VAR FFMPEG_VERSION + REQUIRED_VARS FFMPEG_INCLUDE_DIRS + FFMPEG_LIBAVCODEC + FFMPEG_LIBAVFILTER + FFMPEG_LIBAVFORMAT + FFMPEG_LIBAVUTIL + FFMPEG_LIBSWSCALE + FFMPEG_LIBSWRESAMPLE + FFMPEG_LIBPOSTPROC + FFMPEG_VERSION + FAIL_MESSAGE "FFmpeg ${REQUIRED_FFMPEG_VERSION} not found, please consider using -DENABLE_INTERNAL_FFMPEG=ON") + + else() + message(STATUS "FFmpeg ${REQUIRED_FFMPEG_VERSION} not found, falling back to internal build") + unset(FFMPEG_INCLUDE_DIRS) + unset(FFMPEG_INCLUDE_DIRS CACHE) + unset(FFMPEG_LIBRARIES) + unset(FFMPEG_LIBRARIES CACHE) + unset(FFMPEG_DEFINITIONS) + unset(FFMPEG_DEFINITIONS CACHE) + endif() + + if(FFMPEG_FOUND) + set(FFMPEG_LDFLAGS ${PC_FFMPEG_LDFLAGS} CACHE STRING "ffmpeg linker flags") + + # check if ffmpeg libs are statically linked + set(FFMPEG_LIB_TYPE SHARED) + foreach(_fflib IN LISTS FFMPEG_LIBRARIES) + if(${_fflib} MATCHES ".+\.a$" AND PC_FFMPEG_STATIC_LDFLAGS) + set(FFMPEG_LDFLAGS ${PC_FFMPEG_STATIC_LDFLAGS} CACHE STRING "ffmpeg linker flags" FORCE) + set(FFMPEG_LIB_TYPE STATIC) + break() + endif() + endforeach() + + set(FFMPEG_LIBRARIES ${FFMPEG_LIBAVCODEC} ${FFMPEG_LIBAVFILTER} + ${FFMPEG_LIBAVFORMAT} ${FFMPEG_LIBAVUTIL} + ${FFMPEG_LIBSWSCALE} ${FFMPEG_LIBSWRESAMPLE} + ${FFMPEG_LIBPOSTPROC} ${FFMPEG_LDFLAGS}) + list(APPEND FFMPEG_DEFINITIONS -DFFMPEG_VER_SHA=\"${FFMPEG_VERSION}\") + + if(NOT TARGET ffmpeg) + add_library(ffmpeg ${FFMPEG_LIB_TYPE} IMPORTED) + set_target_properties(ffmpeg PROPERTIES + FOLDER "External Projects" + IMPORTED_LOCATION "${FFMPEG_LIBRARIES}" + INTERFACE_INCLUDE_DIRECTORIES "${FFMPEG_INCLUDE_DIRS}" + INTERFACE_LINK_LIBRARIES "${FFMPEG_LDFLAGS}" + INTERFACE_COMPILE_DEFINITIONS "${FFMPEG_DEFINITIONS}") + endif() + endif() +endif() + +# Internal FFMPEG +if(NOT FFMPEG_FOUND) + include(ExternalProject) + file(STRINGS ${CORE_SOURCE_DIR}/tools/depends/target/ffmpeg/FFMPEG-VERSION VER) + string(REGEX MATCH "VERSION=[^ ]*$.*" FFMPEG_VER "${VER}") + list(GET FFMPEG_VER 0 FFMPEG_VER) + string(SUBSTRING "${FFMPEG_VER}" 8 -1 FFMPEG_VER) + string(REGEX MATCH "BASE_URL=([^ ]*)" FFMPEG_BASE_URL "${VER}") + list(GET FFMPEG_BASE_URL 0 FFMPEG_BASE_URL) + string(SUBSTRING "${FFMPEG_BASE_URL}" 9 -1 FFMPEG_BASE_URL) + + # allow user to override the download URL with a local tarball + # needed for offline build envs + if(FFMPEG_URL) + get_filename_component(FFMPEG_URL "${FFMPEG_URL}" ABSOLUTE) + else() + set(FFMPEG_URL ${FFMPEG_BASE_URL}/${FFMPEG_VER}.tar.gz) + endif() + if(VERBOSE) + message(STATUS "FFMPEG_URL: ${FFMPEG_URL}") + endif() + + if(KODI_DEPENDSBUILD) + set(CROSS_ARGS -DDEPENDS_PATH=${DEPENDS_PATH} + -DPKG_CONFIG_EXECUTABLE=${PKG_CONFIG_EXECUTABLE} + -DCROSSCOMPILING=${CMAKE_CROSSCOMPILING} + -DCMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE} + -DCORE_SYSTEM_NAME=${CORE_SYSTEM_NAME} + -DCPU=${WITH_CPU} + -DOS=${OS} + -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER} + -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER} + -DCMAKE_AR=${CMAKE_AR} + -DCMAKE_C_FLAGS=${CMAKE_C_FLAGS} + -DCMAKE_EXE_LINKER_FLAGS=${CMAKE_EXE_LINKER_FLAGS}) + endif() + + externalproject_add(ffmpeg + URL ${FFMPEG_URL} + DOWNLOAD_NAME ffmpeg-${FFMPEG_VER}.tar.gz + DOWNLOAD_DIR ${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR}/download + PREFIX ${CORE_BUILD_DIR}/ffmpeg + CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR} + -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} + -DFFMPEG_VER=${FFMPEG_VER} + -DCORE_SYSTEM_NAME=${CORE_SYSTEM_NAME} + ${CROSS_ARGS} + PATCH_COMMAND ${CMAKE_COMMAND} -E copy + ${CORE_SOURCE_DIR}/tools/depends/target/ffmpeg/CMakeLists.txt + <SOURCE_DIR> && + ${CMAKE_COMMAND} -E copy + ${CORE_SOURCE_DIR}/tools/depends/target/ffmpeg/FindGnuTls.cmake + <SOURCE_DIR>) + + file(WRITE ${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR}/ffmpeg/ffmpeg-link-wrapper +"#!/bin/bash +if [[ $@ == *${APP_NAME_LC}.bin* || $@ == *${APP_NAME_LC}.so* || $@ == *${APP_NAME_LC}-test* ]] +then + avformat=`PKG_CONFIG_PATH=${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR}/lib/pkgconfig ${PKG_CONFIG_EXECUTABLE} --libs --static libavcodec` + avcodec=`PKG_CONFIG_PATH=${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR}/lib/pkgconfig ${PKG_CONFIG_EXECUTABLE} --libs --static libavformat` + avfilter=`PKG_CONFIG_PATH=${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR}/lib/pkgconfig ${PKG_CONFIG_EXECUTABLE} --libs --static libavfilter` + avutil=`PKG_CONFIG_PATH=${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR}/lib/pkgconfig ${PKG_CONFIG_EXECUTABLE} --libs --static libavutil` + swscale=`PKG_CONFIG_PATH=${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR}/lib/pkgconfig ${PKG_CONFIG_EXECUTABLE} --libs --static libswscale` + swresample=`PKG_CONFIG_PATH=${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR}/lib/pkgconfig ${PKG_CONFIG_EXECUTABLE} --libs --static libswresample` + gnutls=`PKG_CONFIG_PATH=${DEPENDS_PATH}/lib/pkgconfig/ ${PKG_CONFIG_EXECUTABLE} --libs-only-l --static --silence-errors gnutls` + $@ $avcodec $avformat $avcodec $avfilter $swscale $swresample -lpostproc $gnutls +else + $@ +fi") + file(COPY ${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR}/ffmpeg/ffmpeg-link-wrapper + DESTINATION ${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR} + FILE_PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE) + set(FFMPEG_LINK_EXECUTABLE "${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR}/ffmpeg-link-wrapper <CMAKE_CXX_COMPILER> <FLAGS> <CMAKE_CXX_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>" PARENT_SCOPE) + set(FFMPEG_CREATE_SHARED_LIBRARY "${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR}/ffmpeg-link-wrapper <CMAKE_CXX_COMPILER> <CMAKE_SHARED_LIBRARY_CXX_FLAGS> <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS> <SONAME_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>" PARENT_SCOPE) + set(FFMPEG_INCLUDE_DIRS ${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR}/include) + list(APPEND FFMPEG_DEFINITIONS -DFFMPEG_VER_SHA=\"${FFMPEG_VER}\" + -DUSE_STATIC_FFMPEG=1) + set(FFMPEG_FOUND 1) + set_target_properties(ffmpeg PROPERTIES FOLDER "External Projects") +endif() + +mark_as_advanced(FFMPEG_INCLUDE_DIRS FFMPEG_LIBRARIES FFMPEG_LDFLAGS FFMPEG_DEFINITIONS FFMPEG_FOUND) |