# SPDX-FileCopyrightText: 2021 yuzu Emulator Project # SPDX-License-Identifier: GPL-2.0-or-later if (NOT WIN32) # Build FFmpeg from externals message(STATUS "Using FFmpeg from externals") if (CMAKE_SYSTEM_PROCESSOR MATCHES "(x86_64|amd64)") # FFmpeg has source that requires one of nasm or yasm to assemble it. # REQUIRED throws an error if not found here during configuration rather than during compilation. find_program(ASSEMBLER NAMES nasm yasm) if ("${ASSEMBLER}" STREQUAL "ASSEMBLER-NOTFOUND") message(FATAL_ERROR "One of either `nasm` or `yasm` not found but is required.") endif() endif() find_program(AUTOCONF autoconf) if ("${AUTOCONF}" STREQUAL "AUTOCONF-NOTFOUND") message(FATAL_ERROR "Required program `autoconf` not found.") endif() set(FFmpeg_PREFIX ${PROJECT_SOURCE_DIR}/externals/ffmpeg/ffmpeg) set(FFmpeg_BUILD_DIR ${PROJECT_BINARY_DIR}/externals/ffmpeg-build) set(FFmpeg_MAKEFILE ${FFmpeg_BUILD_DIR}/Makefile) make_directory(${FFmpeg_BUILD_DIR}) # Read version string from external file(READ ${FFmpeg_PREFIX}/RELEASE FFmpeg_VERSION) set(FFmpeg_FOUND NO) if (NOT FFmpeg_VERSION STREQUAL "") set(FFmpeg_FOUND YES) endif() unset(FFmpeg_LIBRARIES CACHE) foreach(COMPONENT ${FFmpeg_COMPONENTS}) set(FFmpeg_${COMPONENT}_PREFIX "${FFmpeg_BUILD_DIR}/lib${COMPONENT}") set(FFmpeg_${COMPONENT}_LIB_NAME "lib${COMPONENT}.a") set(FFmpeg_${COMPONENT}_LIBRARY "${FFmpeg_${COMPONENT}_PREFIX}/${FFmpeg_${COMPONENT}_LIB_NAME}") set(FFmpeg_LIBRARIES ${FFmpeg_LIBRARIES} ${FFmpeg_${COMPONENT}_LIBRARY} CACHE PATH "Paths to FFmpeg libraries" FORCE) endforeach() Include(FindPkgConfig REQUIRED) pkg_check_modules(LIBVA libva) pkg_check_modules(CUDA cuda) pkg_check_modules(FFNVCODEC ffnvcodec) pkg_check_modules(VDPAU vdpau) set(FFmpeg_HWACCEL_LIBRARIES) set(FFmpeg_HWACCEL_FLAGS) set(FFmpeg_HWACCEL_INCLUDE_DIRS) set(FFmpeg_HWACCEL_LDFLAGS) if(LIBVA_FOUND) pkg_check_modules(LIBDRM libdrm REQUIRED) find_package(X11 REQUIRED) pkg_check_modules(LIBVA-DRM libva-drm REQUIRED) pkg_check_modules(LIBVA-X11 libva-x11 REQUIRED) list(APPEND FFmpeg_HWACCEL_LIBRARIES ${LIBDRM_LIBRARIES} ${X11_LIBRARIES} ${LIBVA-DRM_LIBRARIES} ${LIBVA-X11_LIBRARIES} ${LIBVA_LIBRARIES}) set(FFmpeg_HWACCEL_FLAGS --enable-hwaccel=h264_vaapi --enable-hwaccel=vp8_vaapi --enable-hwaccel=vp9_vaapi --enable-libdrm) list(APPEND FFmpeg_HWACCEL_INCLUDE_DIRS ${LIBDRM_INCLUDE_DIRS} ${X11_INCLUDE_DIRS} ${LIBVA-DRM_INCLUDE_DIRS} ${LIBVA-X11_INCLUDE_DIRS} ${LIBVA_INCLUDE_DIRS} ) message(STATUS "VA-API found") else() set(FFmpeg_HWACCEL_FLAGS --disable-vaapi) endif() if (FFNVCODEC_FOUND) list(APPEND FFmpeg_HWACCEL_FLAGS --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-hwaccel=h264_nvdec --enable-hwaccel=vp8_nvdec --enable-hwaccel=vp9_nvdec ) list(APPEND FFmpeg_HWACCEL_LIBRARIES ${FFNVCODEC_LIBRARIES}) list(APPEND FFmpeg_HWACCEL_INCLUDE_DIRS ${FFNVCODEC_INCLUDE_DIRS}) list(APPEND FFmpeg_HWACCEL_LDFLAGS ${FFNVCODEC_LDFLAGS}) message(STATUS "ffnvcodec libraries version ${FFNVCODEC_VERSION} found") # ffnvenc could load CUDA libraries at the runtime using dlopen/dlsym or LoadLibrary/GetProcAddress # here we handle the hard-linking senario where CUDA is linked during compilation if (CUDA_FOUND) # This line causes build error if CUDA_INCLUDE_DIRS is anything but a single non-empty value #list(APPEND FFmpeg_HWACCEL_FLAGS --extra-cflags=-I${CUDA_INCLUDE_DIRS}) list(APPEND FFmpeg_HWACCEL_LIBRARIES ${CUDA_LIBRARIES}) list(APPEND FFmpeg_HWACCEL_INCLUDE_DIRS ${CUDA_INCLUDE_DIRS}) list(APPEND FFmpeg_HWACCEL_LDFLAGS ${CUDA_LDFLAGS}) message(STATUS "CUDA libraries found, hard-linking will be performed") endif(CUDA_FOUND) endif() if (VDPAU_FOUND) list(APPEND FFmpeg_HWACCEL_FLAGS --enable-vdpau --enable-hwaccel=h264_vdpau --enable-hwaccel=vp9_vdpau ) list(APPEND FFmpeg_HWACCEL_LIBRARIES ${VDPAU_LIBRARIES}) list(APPEND FFmpeg_HWACCEL_INCLUDE_DIRS ${VDPAU_INCLUDE_DIRS}) list(APPEND FFmpeg_HWACCEL_LDFLAGS ${VDPAU_LDFLAGS}) message(STATUS "vdpau libraries version ${VDPAU_VERSION} found") else() list(APPEND FFmpeg_HWACCEL_FLAGS --disable-vdpau) endif() # `configure` parameters builds only exactly what yuzu needs from FFmpeg # `--disable-vdpau` is needed to avoid linking issues set(FFmpeg_CC ${CMAKE_C_COMPILER_LAUNCHER} ${CMAKE_C_COMPILER}) set(FFmpeg_CXX ${CMAKE_CXX_COMPILER_LAUNCHER} ${CMAKE_CXX_COMPILER}) add_custom_command( OUTPUT ${FFmpeg_MAKEFILE} COMMAND /bin/bash ${FFmpeg_PREFIX}/configure --disable-avdevice --disable-avfilter --disable-avformat --disable-doc --disable-everything --disable-ffmpeg --disable-ffprobe --disable-network --disable-postproc --disable-swresample --enable-decoder=h264 --enable-decoder=vp8 --enable-decoder=vp9 --cc="${FFmpeg_CC}" --cxx="${FFmpeg_CXX}" ${FFmpeg_HWACCEL_FLAGS} WORKING_DIRECTORY ${FFmpeg_BUILD_DIR} ) unset(FFmpeg_CC) unset(FFmpeg_CXX) unset(FFmpeg_HWACCEL_FLAGS) # Workaround for Ubuntu 18.04's older version of make not being able to call make as a child # with context of the jobserver. Also helps ninja users. execute_process( COMMAND nproc OUTPUT_VARIABLE SYSTEM_THREADS) set(FFmpeg_BUILD_LIBRARIES ${FFmpeg_LIBRARIES}) add_custom_command( OUTPUT ${FFmpeg_BUILD_LIBRARIES} COMMAND make -j${SYSTEM_THREADS} WORKING_DIRECTORY ${FFmpeg_BUILD_DIR} ) set(FFmpeg_INCLUDE_DIR "${FFmpeg_PREFIX};${FFmpeg_BUILD_DIR};${FFmpeg_HWACCEL_INCLUDE_DIRS}" CACHE PATH "Path to FFmpeg headers" FORCE) set(FFmpeg_LDFLAGS "${FFmpeg_HWACCEL_LDFLAGS}" CACHE STRING "FFmpeg linker flags" FORCE) # ALL makes this custom target build every time # but it won't actually build if the DEPENDS parameter is up to date add_custom_target(ffmpeg-configure ALL DEPENDS ${FFmpeg_MAKEFILE}) add_custom_target(ffmpeg-build ALL DEPENDS ${FFmpeg_BUILD_LIBRARIES} ffmpeg-configure) link_libraries(${FFmpeg_LIBVA_LIBRARIES}) set(FFmpeg_LIBRARIES ${FFmpeg_BUILD_LIBRARIES} ${FFmpeg_HWACCEL_LIBRARIES} CACHE PATH "Paths to FFmpeg libraries" FORCE) unset(FFmpeg_BUILD_LIBRARIES) unset(FFmpeg_HWACCEL_FLAGS) unset(FFmpeg_HWACCEL_INCLUDE_DIRS) unset(FFmpeg_HWACCEL_LDFLAGS) unset(FFmpeg_HWACCEL_LIBRARIES) if (FFmpeg_FOUND) message(STATUS "Found FFmpeg version ${FFmpeg_VERSION}") else() message(FATAL_ERROR "FFmpeg not found") endif() else(WIN32) # Use yuzu FFmpeg binaries set(FFmpeg_EXT_NAME "ffmpeg-4.4") set(FFmpeg_PATH "${CMAKE_BINARY_DIR}/externals/${FFmpeg_EXT_NAME}") download_bundled_external("ffmpeg/" ${FFmpeg_EXT_NAME} "") set(FFmpeg_FOUND YES) set(FFmpeg_INCLUDE_DIR "${FFmpeg_PATH}/include" CACHE PATH "Path to FFmpeg headers" FORCE) set(FFmpeg_LIBRARY_DIR "${FFmpeg_PATH}/bin" CACHE PATH "Path to FFmpeg library directory" FORCE) set(FFmpeg_LDFLAGS "" CACHE STRING "FFmpeg linker flags" FORCE) set(FFmpeg_DLL_DIR "${FFmpeg_PATH}/bin" CACHE PATH "Path to FFmpeg dll's" FORCE) set(FFmpeg_LIBRARIES ${FFmpeg_LIBRARY_DIR}/swscale.lib ${FFmpeg_LIBRARY_DIR}/avcodec.lib ${FFmpeg_LIBRARY_DIR}/avutil.lib CACHE PATH "Paths to FFmpeg libraries" FORCE) # exported variables set(FFmpeg_PATH "${FFmpeg_PATH}" PARENT_SCOPE) set(FFmpeg_LDFLAGS "${FFmpeg_LDFLAGS}" PARENT_SCOPE) set(FFmpeg_LIBRARIES "${FFmpeg_LIBRARIES}" PARENT_SCOPE) set(FFmpeg_INCLUDE_DIR "${FFmpeg_INCLUDE_DIR}" PARENT_SCOPE) endif() unset(FFmpeg_COMPONENTS)