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