Warning, /frameworks/kfilemetadata/cmake/FindFFmpeg.cmake is written in an unsupported language. File is not indexed.
0001 # vim: ts=2 sw=2 0002 # - Try to find the required ffmpeg components(default: AVFORMAT, AVUTIL, AVCODEC) 0003 # 0004 # Once done this will define 0005 # FFMPEG_FOUND - System has the all required components. 0006 # FFMPEG_INCLUDE_DIRS - Include directory necessary for using the required components headers. 0007 # FFMPEG_LIBRARIES - Link these to use the required ffmpeg components. 0008 # FFMPEG_DEFINITIONS - Compiler switches required for using the required ffmpeg components. 0009 # 0010 # For each of the components 0011 # - AVCODEC 0012 # - AVDEVICE 0013 # - AVFORMAT 0014 # - AVUTIL 0015 # - POSTPROCESS 0016 # - SWSCALE 0017 # the following variables will be defined: 0018 # <component>_FOUND - System has <component> 0019 # <component>_INCLUDE_DIRS - Include directory necessary for using the <component> headers 0020 # <component>_LIBRARIES - Link these to use <component> 0021 # <component>_DEFINITIONS - Compiler switches required for using <component> 0022 # <component>_VERSION - The components version 0023 # 0024 # As the versions of the various FFmpeg components differ for a given release, 0025 # and CMake supports only one common version for all components, use the 0026 # following to specify required versions for multiple components: 0027 # 0028 # find_package(FFmpeg 57.48 COMPONENTS AVCODEC) 0029 # find_package(FFmpeg 57.40 COMPONENTS AVFORMAT) 0030 # find_package(FFmpeg 55.27 COMPONENTS AVUTIL) 0031 # 0032 # SPDX-FileCopyrightText: 2006 Matthias Kretz <kretz@kde.org> 0033 # SPDX-FileCopyrightText: 2008 Alexander Neundorf <neundorf@kde.org> 0034 # SPDX-FileCopyrightText: 2011 Michael Jansen <kde@michael-jansen.biz> 0035 # SPDX-FileCopyrightText: 2021 Stefan BrĂ¼ns <stefan.bruens@rwth-aachen.de> 0036 # SPDX-License-Identifier: BSD-3-Clause 0037 0038 include(FindPackageHandleStandardArgs) 0039 0040 if (NOT FFmpeg_FIND_COMPONENTS) 0041 # The default components were taken from a survey over other FindFFMPEG.cmake files 0042 set(FFmpeg_FIND_COMPONENTS AVCODEC AVFORMAT AVUTIL) 0043 endif () 0044 0045 list(LENGTH FFmpeg_FIND_COMPONENTS _numComponents) 0046 if ((${_numComponents} GREATER 1) AND DEFINED ${FFmpeg_FIND_VERSION}) 0047 message(WARNING "Using a required version in combination with multiple COMPONENTS is not supported") 0048 set(_FFmpeg_REQUIRED_VERSION 0) 0049 elseif (DEFINED FFmpeg_FIND_VERSION) 0050 set(_FFmpeg_REQUIRED_VERSION ${FFmpeg_FIND_VERSION}) 0051 else () 0052 set(_FFmpeg_REQUIRED_VERSION 0) 0053 endif () 0054 set(_FFmpeg_ALL_COMPONENTS AVCODEC AVDEVICE AVFORMAT AVUTIL POSTPROCESS SWSCALE) 0055 0056 # 0057 ### Macro: set_component_found 0058 # 0059 # Marks the given component as found if both *_LIBRARIES AND *_INCLUDE_DIRS is present. 0060 # 0061 macro(set_component_found _component ) 0062 if (${_component}_LIBRARIES AND ${_component}_INCLUDE_DIRS) 0063 set(${_component}_FOUND TRUE) 0064 set(FFmpeg_${_component}_FOUND TRUE) 0065 endif () 0066 endmacro() 0067 0068 # 0069 ### Macro: find_component 0070 # 0071 # Checks for the given component by invoking pkgconfig and then looking up the libraries and 0072 # include directories. 0073 # 0074 macro(find_component _component _pkgconfig _library _header) 0075 0076 if (NOT WIN32) 0077 # use pkg-config to get the directories and then use these values 0078 # in the FIND_PATH() and FIND_LIBRARY() calls 0079 find_package(PkgConfig) 0080 if (PKG_CONFIG_FOUND) 0081 pkg_check_modules(PC_${_component} QUIET ${_pkgconfig}) 0082 endif () 0083 endif (NOT WIN32) 0084 0085 find_path(${_component}_INCLUDE_DIRS ${_header} 0086 HINTS 0087 ${PC_LIB${_component}_INCLUDEDIR} 0088 ${PC_LIB${_component}_INCLUDE_DIRS} 0089 PATH_SUFFIXES 0090 ffmpeg 0091 ) 0092 0093 find_library(${_component}_LIBRARIES NAMES ${_library} 0094 HINTS 0095 ${PC_LIB${_component}_LIBDIR} 0096 ${PC_LIB${_component}_LIBRARY_DIRS} 0097 ) 0098 0099 set(${_component}_DEFINITIONS ${PC_${_component}_CFLAGS_OTHER} CACHE STRING "The ${_component} CFLAGS.") 0100 set(${_component}_VERSION ${PC_${_component}_VERSION} CACHE STRING "The ${_component} version number.") 0101 0102 set_component_found(${_component}) 0103 0104 mark_as_advanced( 0105 ${_component}_INCLUDE_DIRS 0106 ${_component}_LIBRARIES 0107 ${_component}_DEFINITIONS 0108 ${_component}_VERSION) 0109 0110 endmacro() 0111 0112 # Check for cached results. If there are skip the costly part. 0113 if (NOT FFMPEG_LIBRARIES) 0114 0115 # Check for all possible component. 0116 find_component(AVCODEC libavcodec avcodec libavcodec/avcodec.h) 0117 find_component(AVFORMAT libavformat avformat libavformat/avformat.h) 0118 find_component(AVDEVICE libavdevice avdevice libavdevice/avdevice.h) 0119 find_component(AVUTIL libavutil avutil libavutil/avutil.h) 0120 find_component(SWSCALE libswscale swscale libswscale/swscale.h) 0121 find_component(POSTPROCESS libpostproc postproc libpostproc/postprocess.h) 0122 0123 # Check if the required components were found and add their stuff to the FFMPEG_* vars. 0124 foreach (_component ${_FFmpeg_ALL_COMPONENTS}) 0125 if (${_component}_FOUND) 0126 set(FFMPEG_LIBRARIES ${FFMPEG_LIBRARIES} ${${_component}_LIBRARIES}) 0127 set(FFMPEG_DEFINITIONS ${FFMPEG_DEFINITIONS} ${${_component}_DEFINITIONS}) 0128 list(APPEND FFMPEG_INCLUDE_DIRS ${${_component}_INCLUDE_DIRS}) 0129 endif () 0130 endforeach () 0131 0132 # Build the include path with duplicates removed. 0133 if (FFMPEG_INCLUDE_DIRS) 0134 list(REMOVE_DUPLICATES FFMPEG_INCLUDE_DIRS) 0135 endif () 0136 0137 # cache the vars. 0138 set(FFMPEG_INCLUDE_DIRS ${FFMPEG_INCLUDE_DIRS} CACHE STRING "The FFmpeg include directories." FORCE) 0139 set(FFMPEG_LIBRARIES ${FFMPEG_LIBRARIES} CACHE STRING "The FFmpeg libraries." FORCE) 0140 set(FFMPEG_DEFINITIONS ${FFMPEG_DEFINITIONS} CACHE STRING "The FFmpeg cflags." FORCE) 0141 0142 mark_as_advanced(FFMPEG_INCLUDE_DIRS 0143 FFMPEG_LIBRARIES 0144 FFMPEG_DEFINITIONS) 0145 0146 else () 0147 # Set the noncached _FOUND vars for the components. 0148 foreach (_component ${_FFmpeg_ALL_COMPONENTS}) 0149 set_component_found(${_component}) 0150 endforeach () 0151 endif () 0152 0153 # Compile the list of required vars 0154 unset(_FFmpeg_REQUIRED_VARS) 0155 set(_FFmpeg_FOUND_LIBRARIES "") 0156 foreach (_component ${FFmpeg_FIND_COMPONENTS}) 0157 if (${_component}_FOUND) 0158 if (${_component}_VERSION VERSION_LESS _FFmpeg_REQUIRED_VERSION) 0159 message(STATUS "${_component}: ${${_component}_VERSION} < ${_FFmpeg_REQUIRED_VERSION}") 0160 unset(${_component}_FOUND) 0161 endif () 0162 list(APPEND _FFmpeg_FOUND_LIBRARIES ${${_component}_LIBRARIES}) 0163 endif () 0164 list(APPEND _FFmpeg_REQUIRED_VARS ${_component}_LIBRARIES ${_component}_INCLUDE_DIRS ${_component}_FOUND) 0165 endforeach () 0166 list(INSERT _FFmpeg_REQUIRED_VARS 0 _FFmpeg_FOUND_LIBRARIES) 0167 0168 # Give a nice error message if some of the required vars are missing. 0169 find_package_handle_standard_args(FFmpeg 0170 REQUIRED_VARS ${_FFmpeg_REQUIRED_VARS} 0171 HANDLE_COMPONENTS)