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CMake: Port citra-emu/citra FindFFmpeg.cmake

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Also renames related CMake variables to match both the Find*FFmpeg* and
variables defined within the file. Fixes odd errors produced by the old
FindFFmpeg.

Citra's FindFFmpeg is slightly modified here: adds Citra's copyright at
the beginning, renames FFmpeg_INCLUDES to FFmpeg_INCLUDE_DIR, disables a
few components in _FFmpeg_ALL_COMPONENTS, and adds the missing avutil
component to the comment above.
This commit is contained in:
lat9nq 2021-02-05 15:39:19 -05:00
parent 14ec1dddac
commit 1eaff4546b
3 changed files with 214 additions and 128 deletions
Download patch file Download diff file Expand all files Collapse all files

82
CMakeLists.txt
View file

@ -391,45 +391,45 @@ if (YUZU_USE_BUNDLED_FFMPEG)
# Build FFmpeg from externals
message(STATUS "Using FFmpeg from externals")
set(FFMPEG_PREFIX ${PROJECT_SOURCE_DIR}/externals/ffmpeg)
set(FFMPEG_BUILD_DIR ${PROJECT_BINARY_DIR}/externals/ffmpeg)
set(FFMPEG_MAKEFILE ${FFMPEG_BUILD_DIR}/Makefile)
make_directory(${FFMPEG_BUILD_DIR})
set(FFmpeg_PREFIX ${PROJECT_SOURCE_DIR}/externals/ffmpeg)
set(FFmpeg_BUILD_DIR ${PROJECT_BINARY_DIR}/externals/ffmpeg)
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)
file(READ ${FFmpeg_PREFIX}/RELEASE FFmpeg_VERSION)
set(FFmpeg_FOUND NO)
if (NOT FFmpeg_VERSION STREQUAL "")
set(FFmpeg_FOUND YES)
endif()
set(FFMPEG_COMPONENTS
set(FFmpeg_COMPONENTS
avcodec
avutil
swscale)
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}")
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}
set(FFmpeg_LIBRARIES
${FFmpeg_LIBRARIES}
${FFmpeg_${COMPONENT}_LIBRARY}
CACHE PATH "Paths to FFmpeg libraries" FORCE)
endforeach()
set(FFMPEG_INCLUDE_DIR
${FFMPEG_PREFIX}
set(FFmpeg_INCLUDE_DIR
${FFmpeg_PREFIX}
CACHE PATH "Path to FFmpeg headers" FORCE)
# `configure` parameters builds only exactly what yuzu needs from FFmpeg
# `--disable-{vaapi,vdpau}` is needed to avoid linking issues
add_custom_command(
OUTPUT
${FFMPEG_MAKEFILE}
${FFmpeg_MAKEFILE}
COMMAND
/bin/bash ${FFMPEG_PREFIX}/configure
/bin/bash ${FFmpeg_PREFIX}/configure
--disable-avdevice
--disable-avfilter
--disable-avformat
@ -445,25 +445,25 @@ if (YUZU_USE_BUNDLED_FFMPEG)
--enable-decoder=h264
--enable-decoder=vp9
WORKING_DIRECTORY
${FFMPEG_BUILD_DIR}
${FFmpeg_BUILD_DIR}
)
add_custom_command(
OUTPUT
${FFMPEG_LIBRARIES}
${FFmpeg_LIBRARIES}
COMMAND
make
WORKING_DIRECTORY
${FFMPEG_BUILD_DIR}
${FFmpeg_BUILD_DIR}
)
# 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-build ALL DEPENDS ${FFMPEG_LIBRARIES})
add_custom_target(ffmpeg-configure ALL DEPENDS ${FFMPEG_MAKEFILE})
add_custom_target(ffmpeg-build ALL DEPENDS ${FFmpeg_LIBRARIES})
add_custom_target(ffmpeg-configure ALL DEPENDS ${FFmpeg_MAKEFILE})
if (FFMPEG_FOUND)
message(STATUS "Found FFmpeg version ${FFMPEG_VERSION}")
if (FFmpeg_FOUND)
message(STATUS "Found FFmpeg version ${FFmpeg_VERSION}")
add_dependencies(ffmpeg-build ffmpeg-configure)
else()
@ -471,22 +471,26 @@ if (YUZU_USE_BUNDLED_FFMPEG)
endif()
else() # WIN32
# Use yuzu FFmpeg binaries
set(FFMPEG_EXT_NAME "ffmpeg-4.2.1")
set(FFMPEG_PATH "${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 "${FFMPEG_PATH}/bin" CACHE PATH "Path to FFmpeg library directory" FORCE)
set(FFMPEG_DLL_DIR "${FFMPEG_PATH}/bin" CACHE PATH "Path to FFmpeg dll's" FORCE)
set(FFMPEG_LIBRARIES
${FFMPEG_LIBRARY_DIR}/swscale.lib
${FFMPEG_LIBRARY_DIR}/avcodec.lib
${FFMPEG_LIBRARY_DIR}/avutil.lib
set(FFmpeg_EXT_NAME "ffmpeg-4.2.1")
set(FFmpeg_PATH "${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 "${FFmpeg_PATH}/bin" CACHE PATH "Path to FFmpeg library directory" FORCE)
set(FFmpeg_DLL_DIR "${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)
endif()
else()
# Use system installed FFmpeg
find_package(FFmpeg REQUIRED VERSION 4.0)
find_package(FFmpeg REQUIRED)
if (NOT FFmpeg_FOUND)
message(FATAL_ERROR "FFmpeg not found")
endif()
endif()
# Prefer the -pthread flag on Linux.