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CMake: Port citra-emu/citra FindFFmpeg.cmake
CMake: Port citra-emu/citra FindFFmpeg.cmake
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.nce_cpp
lat9nq
5 years ago
3 changed files with 207 additions and 121 deletions
@ -1,100 +1,182 @@ |
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# - Try to find ffmpeg libraries (libavcodec, libavformat and libavutil) |
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# Once done this will define |
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# FindFFmpeg |
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# ---------- |
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# |
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# FFMPEG_FOUND - system has ffmpeg or libav |
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# FFMPEG_INCLUDE_DIR - the ffmpeg include directory |
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# FFMPEG_LIBRARIES - Link these to use ffmpeg |
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# FFMPEG_LIBAVCODEC |
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# FFMPEG_LIBAVFORMAT |
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# FFMPEG_LIBAVUTIL |
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# Copyright 2019 Citra Emulator Project |
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# Licensed under GPLv2 or any later version |
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# |
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# Copyright (c) 2008 Andreas Schneider <mail@cynapses.org> |
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# Modified for other libraries by Lasse Kärkkäinen <tronic> |
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# Modified for Hedgewars by Stepik777 |
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# Modified for FFmpeg-example Tuukka Pasanen 2018 |
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# Modified for yuzu toastUnlimted 2020 |
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# Find the native FFmpeg includes and libraries |
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# |
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# Redistribution and use is allowed according to the terms of the New |
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# BSD license. |
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# This module defines the following variables: |
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# |
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# FFmpeg_INCLUDE_<component>: where to find <component>.h |
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# FFmpeg_LIBRARY_<component>: where to find the <component> library |
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# FFmpeg_INCLUDE_DIR: aggregate all the include paths |
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# FFmpeg_LIBRARIES: aggregate all the paths to the libraries |
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# FFmpeg_FOUND: True if all components have been found |
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# |
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# This module defines the following targets, which are prefered over variables: |
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# |
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# FFmpeg::<component>: Target to use <component> directly, with include path, |
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# library and dependencies set up. If you are using a static build, you are |
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# responsible for adding any external dependencies (such as zlib, bzlib...). |
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# |
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# <component> can be one of: |
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# avcodec |
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# avdevice # Disabled |
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# avfilter # Disabled |
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# avformat # Disabled |
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# avutil |
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# postproc # Disabled |
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# swresample # Disabled |
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# swscale |
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# |
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|
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include(FindPackageHandleStandardArgs) |
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|
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find_package_handle_standard_args(FFMPEG |
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FOUND_VAR FFMPEG_FOUND |
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REQUIRED_VARS |
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FFMPEG_LIBRARY |
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FFMPEG_INCLUDE_DIR |
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VERSION_VAR FFMPEG_VERSION |
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set(_FFmpeg_ALL_COMPONENTS |
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avcodec |
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avutil |
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swscale |
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) |
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|
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if(FFMPEG_LIBRARIES AND FFMPEG_INCLUDE_DIR) |
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# in cache already |
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set(FFMPEG_FOUND TRUE) |
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else() |
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# use pkg-config to get the directories and then use these values |
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# in the FIND_PATH() and FIND_LIBRARY() calls |
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find_package(PkgConfig) |
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if(PKG_CONFIG_FOUND) |
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pkg_check_modules(_FFMPEG_AVCODEC libavcodec) |
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pkg_check_modules(_FFMPEG_AVUTIL libavutil) |
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pkg_check_modules(_FFMPEG_SWSCALE libswscale) |
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set(_FFmpeg_DEPS_avcodec avutil) |
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set(_FFmpeg_DEPS_avdevice avcodec avformat avutil) |
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set(_FFmpeg_DEPS_avfilter avutil) |
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set(_FFmpeg_DEPS_avformat avcodec avutil) |
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set(_FFmpeg_DEPS_postproc avutil) |
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set(_FFmpeg_DEPS_swresample avutil) |
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set(_FFmpeg_DEPS_swscale avutil) |
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|
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function(find_ffmpeg LIBNAME) |
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if(DEFINED ENV{FFMPEG_DIR}) |
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set(FFMPEG_DIR $ENV{FFMPEG_DIR}) |
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endif() |
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|
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find_path(FFMPEG_AVCODEC_INCLUDE_DIR |
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NAMES libavcodec/avcodec.h |
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PATHS ${_FFMPEG_AVCODEC_INCLUDE_DIRS} |
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/usr/include |
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/usr/local/include |
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/opt/local/include |
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/sw/include |
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PATH_SUFFIXES ffmpeg libav) |
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|
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find_library(FFMPEG_LIBAVCODEC |
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NAMES avcodec |
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PATHS ${_FFMPEG_AVCODEC_LIBRARY_DIRS} |
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/usr/lib |
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/usr/local/lib |
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/opt/local/lib |
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/sw/lib) |
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if(FFMPEG_DIR) |
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list(APPEND INCLUDE_PATHS |
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${FFMPEG_DIR} |
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${FFMPEG_DIR}/ffmpeg |
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${FFMPEG_DIR}/lib${LIBNAME} |
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${FFMPEG_DIR}/include/lib${LIBNAME} |
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${FFMPEG_DIR}/include/ffmpeg |
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${FFMPEG_DIR}/include |
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NO_DEFAULT_PATH |
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NO_CMAKE_FIND_ROOT_PATH |
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) |
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list(APPEND LIB_PATHS |
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${FFMPEG_DIR} |
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${FFMPEG_DIR}/lib |
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${FFMPEG_DIR}/lib${LIBNAME} |
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NO_DEFAULT_PATH |
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NO_CMAKE_FIND_ROOT_PATH |
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) |
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else() |
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list(APPEND INCLUDE_PATHS |
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/usr/local/include/ffmpeg |
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/usr/local/include/lib${LIBNAME} |
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/usr/include/ffmpeg |
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/usr/include/lib${LIBNAME} |
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/usr/include/ffmpeg/lib${LIBNAME} |
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) |
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|
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find_library(FFMPEG_LIBAVUTIL |
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NAMES avutil |
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PATHS ${_FFMPEG_AVUTIL_LIBRARY_DIRS} |
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/usr/lib |
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list(APPEND LIB_PATHS |
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/usr/local/lib |
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/opt/local/lib |
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/sw/lib) |
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|
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find_library(FFMPEG_LIBSWSCALE |
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NAMES swscale |
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PATHS ${_FFMPEG_SWSCALE_LIBRARY_DIRS} |
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/usr/lib |
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/usr/local/lib |
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/opt/local/lib |
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/sw/lib) |
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) |
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endif() |
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|
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find_path(FFmpeg_INCLUDE_${LIBNAME} lib${LIBNAME}/${LIBNAME}.h |
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HINTS ${INCLUDE_PATHS} |
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) |
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|
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if(FFMPEG_LIBAVCODEC AND FFMPEG_LIBAVUTIL AND FFMPEG_LIBSWSCALE) |
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set(FFMPEG_FOUND TRUE) |
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find_library(FFmpeg_LIBRARY_${LIBNAME} ${LIBNAME} |
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HINTS ${LIB_PATHS} |
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) |
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|
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if(NOT FFMPEG_DIR AND (NOT FFmpeg_LIBRARY_${LIBNAME} OR NOT FFmpeg_INCLUDE_${LIBNAME})) |
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# Didn't find it in the usual paths, try pkg-config |
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find_package(PkgConfig QUIET) |
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pkg_check_modules(FFmpeg_PKGCONFIG_${LIBNAME} QUIET lib${LIBNAME}) |
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|
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find_path(FFmpeg_INCLUDE_${LIBNAME} lib${LIBNAME}/${LIBNAME}.h |
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${FFmpeg_PKGCONFIG_${LIBNAME}_INCLUDE_DIRS} |
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) |
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|
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find_library(FFmpeg_LIBRARY_${LIBNAME} ${LIBNAME} |
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${FFmpeg_PKGCONFIG_${LIBNAME}_LIBRARY_DIRS} |
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) |
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endif() |
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|
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if(FFMPEG_FOUND) |
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set(FFMPEG_INCLUDE_DIR ${FFMPEG_AVCODEC_INCLUDE_DIR}) |
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set(FFMPEG_LIBRARIES |
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${FFMPEG_LIBAVCODEC} |
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${FFMPEG_LIBAVUTIL} |
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${FFMPEG_LIBSWSCALE}) |
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if(FFmpeg_INCLUDE_${LIBNAME} AND FFmpeg_LIBRARY_${LIBNAME}) |
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set(FFmpeg_INCLUDE_${LIBNAME} "${FFmpeg_INCLUDE_${LIBNAME}}" PARENT_SCOPE) |
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set(FFmpeg_LIBRARY_${LIBNAME} "${FFmpeg_LIBRARY_${LIBNAME}}" PARENT_SCOPE) |
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|
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# Extract FFmpeg version from version.h |
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foreach(v MAJOR MINOR MICRO) |
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set(FFmpeg_${LIBNAME}_VERSION_${v} 0) |
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endforeach() |
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string(TOUPPER ${LIBNAME} LIBNAME_UPPER) |
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file(STRINGS "${FFmpeg_INCLUDE_${LIBNAME}}/lib${LIBNAME}/version.h" _FFmpeg_VERSION_H_CONTENTS REGEX "#define LIB${LIBNAME_UPPER}_VERSION_(MAJOR|MINOR|MICRO) ") |
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set(_FFmpeg_VERSION_REGEX "([0-9]+)") |
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foreach(v MAJOR MINOR MICRO) |
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if("${_FFmpeg_VERSION_H_CONTENTS}" MATCHES "#define LIB${LIBNAME_UPPER}_VERSION_${v}[\\t ]+${_FFmpeg_VERSION_REGEX}") |
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set(FFmpeg_${LIBNAME}_VERSION_${v} "${CMAKE_MATCH_1}") |
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endif() |
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endforeach() |
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set(FFmpeg_${LIBNAME}_VERSION "${FFmpeg_${LIBNAME}_VERSION_MAJOR}.${FFmpeg_${LIBNAME}_VERSION_MINOR}.${FFmpeg_${LIBNAME}_VERSION_MICRO}") |
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set(FFmpeg_${c}_VERSION "${FFmpeg_${LIBNAME}_VERSION}" PARENT_SCOPE) |
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unset(_FFmpeg_VERSION_REGEX) |
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unset(_FFmpeg_VERSION_H_CONTENTS) |
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|
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if(FFMPEG_FOUND) |
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if(NOT FFMPEG_FIND_QUIETLY) |
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message(STATUS |
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"Found FFMPEG or Libav: ${FFMPEG_LIBRARIES}, ${FFMPEG_INCLUDE_DIR}") |
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set(FFmpeg_${c}_FOUND TRUE PARENT_SCOPE) |
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if(NOT FFmpeg_FIND_QUIETLY) |
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message("-- Found ${LIBNAME}: ${FFmpeg_INCLUDE_${LIBNAME}} ${FFmpeg_LIBRARY_${LIBNAME}} (version: ${FFmpeg_${LIBNAME}_VERSION})") |
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endif() |
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else() |
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if(FFMPEG_FIND_REQUIRED) |
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message(FATAL_ERROR |
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"Could not find libavcodec or libavutil or libswscale") |
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endif() |
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endfunction() |
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|
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foreach(c ${_FFmpeg_ALL_COMPONENTS}) |
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find_ffmpeg(${c}) |
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endforeach() |
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|
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foreach(c ${_FFmpeg_ALL_COMPONENTS}) |
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if(FFmpeg_${c}_FOUND) |
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list(APPEND FFmpeg_INCLUDE_DIR ${FFmpeg_INCLUDE_${c}}) |
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list(APPEND FFmpeg_LIBRARIES ${FFmpeg_LIBRARY_${c}}) |
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|
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add_library(FFmpeg::${c} IMPORTED UNKNOWN) |
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set_target_properties(FFmpeg::${c} PROPERTIES |
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IMPORTED_LOCATION ${FFmpeg_LIBRARY_${c}} |
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INTERFACE_INCLUDE_DIRECTORIES ${FFmpeg_INCLUDE_${c}} |
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) |
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if(_FFmpeg_DEPS_${c}) |
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set(deps) |
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foreach(dep ${_FFmpeg_DEPS_${c}}) |
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list(APPEND deps FFmpeg::${dep}) |
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endforeach() |
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|
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set_target_properties(FFmpeg::${c} PROPERTIES |
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INTERFACE_LINK_LIBRARIES "${deps}" |
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) |
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unset(deps) |
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endif() |
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endif() |
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endforeach() |
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|
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if(FFmpeg_INCLUDE_DIR) |
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list(REMOVE_DUPLICATES FFmpeg_INCLUDE_DIR) |
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endif() |
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|
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foreach(c ${FFmpeg_FIND_COMPONENTS}) |
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list(APPEND _FFmpeg_REQUIRED_VARS FFmpeg_INCLUDE_${c} FFmpeg_LIBRARY_${c}) |
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endforeach() |
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|
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include(FindPackageHandleStandardArgs) |
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find_package_handle_standard_args(FFmpeg |
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REQUIRED_VARS ${_FFmpeg_REQUIRED_VARS} |
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HANDLE_COMPONENTS |
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) |
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|
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foreach(c ${_FFmpeg_ALL_COMPONENTS}) |
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unset(_FFmpeg_DEPS_${c}) |
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endforeach() |
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unset(_FFmpeg_ALL_COMPONENTS) |
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unset(_FFmpeg_REQUIRED_VARS) |
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