From eceee8c3d930563e26841d556f9acb965eab67c8 Mon Sep 17 00:00:00 2001 From: Alexandre Bouvier Date: Sat, 31 Dec 2022 14:23:38 +0100 Subject: cmake: move find-modules to root cmake dir --- CMakeModules/FindFFmpeg.cmake | 195 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 195 insertions(+) create mode 100644 CMakeModules/FindFFmpeg.cmake (limited to 'CMakeModules/FindFFmpeg.cmake') diff --git a/CMakeModules/FindFFmpeg.cmake b/CMakeModules/FindFFmpeg.cmake new file mode 100644 index 000000000..eedf28aea --- /dev/null +++ b/CMakeModules/FindFFmpeg.cmake @@ -0,0 +1,195 @@ +# SPDX-FileCopyrightText: 2019 Citra Emulator Project +# SPDX-License-Identifier: GPL-2.0-or-later + +# FindFFmpeg +# ---------- +# +# Find the native FFmpeg includes and libraries +# +# This module defines the following variables: +# +# FFmpeg_INCLUDE_: where to find .h +# FFmpeg_LIBRARY_: where to find the 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::: Target to use 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...). +# +# can be one of: +# avcodec +# avdevice +# avfilter +# avformat +# avutil +# postproc +# swresample +# swscale +# + +set(_FFmpeg_ALL_COMPONENTS + avcodec + avdevice + avfilter + avformat + avutil + postproc + swresample + swscale +) + +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() + + 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${LIBNAME} + ) + + list(APPEND LIB_PATHS + /usr/local/lib + /usr/lib + ) + endif() + + find_path(FFmpeg_INCLUDE_${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_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() + 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) + +include(FindPackageHandleStandardArgs) +find_package_handle_standard_args(FFmpeg + REQUIRED_VARS + FFmpeg_LIBRARIES + FFmpeg_INCLUDE_DIR + HANDLE_COMPONENTS +) -- cgit v1.2.3