diff options
Diffstat (limited to 'externals/find-modules')
| -rw-r--r-- | externals/find-modules/FindFFmpeg.cmake | 242 |
1 files changed, 162 insertions, 80 deletions
diff --git a/externals/find-modules/FindFFmpeg.cmake b/externals/find-modules/FindFFmpeg.cmake index 77b331e00..86a3f5a5a 100644 --- a/externals/find-modules/FindFFmpeg.cmake +++ b/externals/find-modules/FindFFmpeg.cmake @@ -1,100 +1,182 @@ -# - Try to find ffmpeg libraries (libavcodec, libavformat and libavutil) -# Once done this will define +# FindFFmpeg +# ---------- # -# FFMPEG_FOUND - system has ffmpeg or libav -# FFMPEG_INCLUDE_DIR - the ffmpeg include directory -# FFMPEG_LIBRARIES - Link these to use ffmpeg -# FFMPEG_LIBAVCODEC -# FFMPEG_LIBAVFORMAT -# FFMPEG_LIBAVUTIL +# Copyright 2019 Citra Emulator Project +# Licensed under GPLv2 or any later version # -# Copyright (c) 2008 Andreas Schneider <mail@cynapses.org> -# Modified for other libraries by Lasse Kärkkäinen <tronic> -# Modified for Hedgewars by Stepik777 -# Modified for FFmpeg-example Tuukka Pasanen 2018 -# Modified for yuzu toastUnlimted 2020 +# Find the native FFmpeg includes and libraries # -# Redistribution and use is allowed according to the terms of the New -# BSD license. +# This module defines the following variables: +# +# FFmpeg_INCLUDE_<component>: where to find <component>.h +# FFmpeg_LIBRARY_<component>: where to find the <component> library +# FFmpeg_INCLUDE_DIR: aggregate all the include paths +# FFmpeg_LIBRARIES: aggregate all the paths to the libraries +# FFmpeg_FOUND: True if all components have been found +# +# This module defines the following targets, which are prefered over variables: +# +# FFmpeg::<component>: Target to use <component> directly, with include path, +# library and dependencies set up. If you are using a static build, you are +# responsible for adding any external dependencies (such as zlib, bzlib...). +# +# <component> can be one of: +# avcodec +# avdevice # Disabled +# avfilter # Disabled +# avformat # Disabled +# avutil +# postproc # Disabled +# swresample # Disabled +# swscale # -include(FindPackageHandleStandardArgs) - -find_package_handle_standard_args(FFMPEG - FOUND_VAR FFMPEG_FOUND - REQUIRED_VARS - FFMPEG_LIBRARY - FFMPEG_INCLUDE_DIR - VERSION_VAR FFMPEG_VERSION +set(_FFmpeg_ALL_COMPONENTS + avcodec + avutil + swscale ) -if(FFMPEG_LIBRARIES AND FFMPEG_INCLUDE_DIR) - # in cache already - set(FFMPEG_FOUND TRUE) -else() - # use pkg-config to get the directories and then use these values - # in the FIND_PATH() and FIND_LIBRARY() calls - find_package(PkgConfig) - if(PKG_CONFIG_FOUND) - pkg_check_modules(_FFMPEG_AVCODEC libavcodec) - pkg_check_modules(_FFMPEG_AVUTIL libavutil) - pkg_check_modules(_FFMPEG_SWSCALE libswscale) +set(_FFmpeg_DEPS_avcodec avutil) +set(_FFmpeg_DEPS_avdevice avcodec avformat avutil) +set(_FFmpeg_DEPS_avfilter avutil) +set(_FFmpeg_DEPS_avformat avcodec avutil) +set(_FFmpeg_DEPS_postproc avutil) +set(_FFmpeg_DEPS_swresample avutil) +set(_FFmpeg_DEPS_swscale avutil) + +function(find_ffmpeg LIBNAME) + if(DEFINED ENV{FFMPEG_DIR}) + set(FFMPEG_DIR $ENV{FFMPEG_DIR}) endif() - find_path(FFMPEG_AVCODEC_INCLUDE_DIR - NAMES libavcodec/avcodec.h - PATHS ${_FFMPEG_AVCODEC_INCLUDE_DIRS} - /usr/include - /usr/local/include - /opt/local/include - /sw/include - PATH_SUFFIXES ffmpeg libav) - - find_library(FFMPEG_LIBAVCODEC - NAMES avcodec - PATHS ${_FFMPEG_AVCODEC_LIBRARY_DIRS} - /usr/lib - /usr/local/lib - /opt/local/lib - /sw/lib) + if(FFMPEG_DIR) + list(APPEND INCLUDE_PATHS + ${FFMPEG_DIR} + ${FFMPEG_DIR}/ffmpeg + ${FFMPEG_DIR}/lib${LIBNAME} + ${FFMPEG_DIR}/include/lib${LIBNAME} + ${FFMPEG_DIR}/include/ffmpeg + ${FFMPEG_DIR}/include + NO_DEFAULT_PATH + NO_CMAKE_FIND_ROOT_PATH + ) + list(APPEND LIB_PATHS + ${FFMPEG_DIR} + ${FFMPEG_DIR}/lib + ${FFMPEG_DIR}/lib${LIBNAME} + NO_DEFAULT_PATH + NO_CMAKE_FIND_ROOT_PATH + ) + else() + list(APPEND INCLUDE_PATHS + /usr/local/include/ffmpeg + /usr/local/include/lib${LIBNAME} + /usr/include/ffmpeg + /usr/include/lib${LIBNAME} + /usr/include/ffmpeg/lib${LIBNAME} + ) - find_library(FFMPEG_LIBAVUTIL - NAMES avutil - PATHS ${_FFMPEG_AVUTIL_LIBRARY_DIRS} - /usr/lib + list(APPEND LIB_PATHS /usr/local/lib - /opt/local/lib - /sw/lib) - - find_library(FFMPEG_LIBSWSCALE - NAMES swscale - PATHS ${_FFMPEG_SWSCALE_LIBRARY_DIRS} /usr/lib - /usr/local/lib - /opt/local/lib - /sw/lib) - - if(FFMPEG_LIBAVCODEC AND FFMPEG_LIBAVUTIL AND FFMPEG_LIBSWSCALE) - set(FFMPEG_FOUND TRUE) + ) endif() - if(FFMPEG_FOUND) - set(FFMPEG_INCLUDE_DIR ${FFMPEG_AVCODEC_INCLUDE_DIR}) - set(FFMPEG_LIBRARIES - ${FFMPEG_LIBAVCODEC} - ${FFMPEG_LIBAVUTIL} - ${FFMPEG_LIBSWSCALE}) + find_path(FFmpeg_INCLUDE_${LIBNAME} lib${LIBNAME}/${LIBNAME}.h + HINTS ${INCLUDE_PATHS} + ) + + find_library(FFmpeg_LIBRARY_${LIBNAME} ${LIBNAME} + HINTS ${LIB_PATHS} + ) + + if(NOT FFMPEG_DIR AND (NOT FFmpeg_LIBRARY_${LIBNAME} OR NOT FFmpeg_INCLUDE_${LIBNAME})) + # Didn't find it in the usual paths, try pkg-config + find_package(PkgConfig QUIET) + pkg_check_modules(FFmpeg_PKGCONFIG_${LIBNAME} QUIET lib${LIBNAME}) + + find_path(FFmpeg_INCLUDE_${LIBNAME} lib${LIBNAME}/${LIBNAME}.h + ${FFmpeg_PKGCONFIG_${LIBNAME}_INCLUDE_DIRS} + ) + + find_library(FFmpeg_LIBRARY_${LIBNAME} ${LIBNAME} + ${FFmpeg_PKGCONFIG_${LIBNAME}_LIBRARY_DIRS} + ) endif() - if(FFMPEG_FOUND) - if(NOT FFMPEG_FIND_QUIETLY) - message(STATUS - "Found FFMPEG or Libav: ${FFMPEG_LIBRARIES}, ${FFMPEG_INCLUDE_DIR}") + if(FFmpeg_INCLUDE_${LIBNAME} AND FFmpeg_LIBRARY_${LIBNAME}) + set(FFmpeg_INCLUDE_${LIBNAME} "${FFmpeg_INCLUDE_${LIBNAME}}" PARENT_SCOPE) + set(FFmpeg_LIBRARY_${LIBNAME} "${FFmpeg_LIBRARY_${LIBNAME}}" PARENT_SCOPE) + + # Extract FFmpeg version from version.h + foreach(v MAJOR MINOR MICRO) + set(FFmpeg_${LIBNAME}_VERSION_${v} 0) + endforeach() + string(TOUPPER ${LIBNAME} LIBNAME_UPPER) + file(STRINGS "${FFmpeg_INCLUDE_${LIBNAME}}/lib${LIBNAME}/version.h" _FFmpeg_VERSION_H_CONTENTS REGEX "#define LIB${LIBNAME_UPPER}_VERSION_(MAJOR|MINOR|MICRO) ") + set(_FFmpeg_VERSION_REGEX "([0-9]+)") + foreach(v MAJOR MINOR MICRO) + if("${_FFmpeg_VERSION_H_CONTENTS}" MATCHES "#define LIB${LIBNAME_UPPER}_VERSION_${v}[\\t ]+${_FFmpeg_VERSION_REGEX}") + set(FFmpeg_${LIBNAME}_VERSION_${v} "${CMAKE_MATCH_1}") + endif() + endforeach() + set(FFmpeg_${LIBNAME}_VERSION "${FFmpeg_${LIBNAME}_VERSION_MAJOR}.${FFmpeg_${LIBNAME}_VERSION_MINOR}.${FFmpeg_${LIBNAME}_VERSION_MICRO}") + set(FFmpeg_${c}_VERSION "${FFmpeg_${LIBNAME}_VERSION}" PARENT_SCOPE) + unset(_FFmpeg_VERSION_REGEX) + unset(_FFmpeg_VERSION_H_CONTENTS) + + set(FFmpeg_${c}_FOUND TRUE PARENT_SCOPE) + if(NOT FFmpeg_FIND_QUIETLY) + message("-- Found ${LIBNAME}: ${FFmpeg_INCLUDE_${LIBNAME}} ${FFmpeg_LIBRARY_${LIBNAME}} (version: ${FFmpeg_${LIBNAME}_VERSION})") endif() - else() - if(FFMPEG_FIND_REQUIRED) - message(FATAL_ERROR - "Could not find libavcodec or libavutil or libswscale") + endif() +endfunction() + +foreach(c ${_FFmpeg_ALL_COMPONENTS}) + find_ffmpeg(${c}) +endforeach() + +foreach(c ${_FFmpeg_ALL_COMPONENTS}) + if(FFmpeg_${c}_FOUND) + list(APPEND FFmpeg_INCLUDE_DIR ${FFmpeg_INCLUDE_${c}}) + list(APPEND FFmpeg_LIBRARIES ${FFmpeg_LIBRARY_${c}}) + + add_library(FFmpeg::${c} IMPORTED UNKNOWN) + set_target_properties(FFmpeg::${c} PROPERTIES + IMPORTED_LOCATION ${FFmpeg_LIBRARY_${c}} + INTERFACE_INCLUDE_DIRECTORIES ${FFmpeg_INCLUDE_${c}} + ) + if(_FFmpeg_DEPS_${c}) + set(deps) + foreach(dep ${_FFmpeg_DEPS_${c}}) + list(APPEND deps FFmpeg::${dep}) + endforeach() + + set_target_properties(FFmpeg::${c} PROPERTIES + INTERFACE_LINK_LIBRARIES "${deps}" + ) + unset(deps) endif() endif() +endforeach() + +if(FFmpeg_INCLUDE_DIR) + list(REMOVE_DUPLICATES FFmpeg_INCLUDE_DIR) endif() + +foreach(c ${FFmpeg_FIND_COMPONENTS}) + list(APPEND _FFmpeg_REQUIRED_VARS FFmpeg_INCLUDE_${c} FFmpeg_LIBRARY_${c}) +endforeach() + +include(FindPackageHandleStandardArgs) +find_package_handle_standard_args(FFmpeg + REQUIRED_VARS ${_FFmpeg_REQUIRED_VARS} + HANDLE_COMPONENTS +) + +foreach(c ${_FFmpeg_ALL_COMPONENTS}) + unset(_FFmpeg_DEPS_${c}) +endforeach() +unset(_FFmpeg_ALL_COMPONENTS) +unset(_FFmpeg_REQUIRED_VARS) |