Warning, /maui/clip/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 it will additionally set. 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 # SPDX-FileCopyrightText: 2006 Matthias Kretz <kretz@kde.org> 0025 # SPDX-FileCopyrightText: 2008 Alexander Neundorf <neundorf@kde.org> 0026 # SPDX-FileCopyrightText: 2011 Michael Jansen <kde@michael-jansen.biz> 0027 # 0028 # SPDX-License-Identifier: BSD-3-Clause 0029 0030 include(FindPackageHandleStandardArgs) 0031 0032 # The default components were taken from a survey over other FindFFMPEG.cmake files 0033 if (NOT FFmpeg_FIND_COMPONENTS) 0034 set(FFmpeg_FIND_COMPONENTS AVCODEC AVFORMAT AVUTIL) 0035 endif () 0036 0037 # 0038 ### Macro: set_component_found 0039 # 0040 # Marks the given component as found if both *_LIBRARIES AND *_INCLUDE_DIRS is present. 0041 # 0042 macro(set_component_found _component ) 0043 if (${_component}_LIBRARIES AND ${_component}_INCLUDE_DIRS) 0044 # message(STATUS " - ${_component} found.") 0045 set(${_component}_FOUND TRUE) 0046 else () 0047 # message(STATUS " - ${_component} not found.") 0048 endif () 0049 endmacro() 0050 0051 # 0052 ### Macro: find_component 0053 # 0054 # Checks for the given component by invoking pkgconfig and then looking up the libraries and 0055 # include directories. 0056 # 0057 macro(find_component _component _pkgconfig _library _header) 0058 0059 if (NOT WIN32) 0060 # use pkg-config to get the directories and then use these values 0061 # in the FIND_PATH() and FIND_LIBRARY() calls 0062 find_package(PkgConfig) 0063 if (PKG_CONFIG_FOUND) 0064 pkg_check_modules(PC_${_component} ${_pkgconfig}) 0065 endif () 0066 endif (NOT WIN32) 0067 0068 find_path(${_component}_INCLUDE_DIRS ${_header} 0069 HINTS 0070 ${PC_${_component}_INCLUDEDIR} 0071 ${PC_${_component}_INCLUDE_DIRS} 0072 PATH_SUFFIXES 0073 ffmpeg 0074 ) 0075 0076 find_library(${_component}_LIBRARIES NAMES ${_library} 0077 HINTS 0078 ${PC_${_component}_LIBDIR} 0079 ${PC_${_component}_LIBRARY_DIRS} 0080 ) 0081 0082 set(${_component}_DEFINITIONS ${PC_${_component}_CFLAGS_OTHER} CACHE STRING "The ${_component} CFLAGS.") 0083 set(${_component}_VERSION ${PC_${_component}_VERSION} CACHE STRING "The ${_component} version number.") 0084 0085 set_component_found(${_component}) 0086 0087 mark_as_advanced( 0088 ${_component}_INCLUDE_DIRS 0089 ${_component}_LIBRARIES 0090 ${_component}_DEFINITIONS 0091 ${_component}_VERSION) 0092 0093 endmacro() 0094 0095 0096 # Check for cached results. If there are skip the costly part. 0097 if (NOT FFMPEG_LIBRARIES) 0098 0099 # Check for all possible component. 0100 find_component(AVCODEC libavcodec avcodec libavcodec/avcodec.h) 0101 find_component(AVFILTER libavfilter avfilter libavfilter/avfilter.h) 0102 find_component(AVFORMAT libavformat avformat libavformat/avformat.h) 0103 find_component(AVDEVICE libavdevice avdevice libavdevice/avdevice.h) 0104 find_component(AVUTIL libavutil avutil libavutil/avutil.h) 0105 find_component(SWSCALE libswscale swscale libswscale/swscale.h) 0106 find_component(POSTPROC libpostproc postproc libpostproc/postprocess.h) 0107 0108 # Check if the required components were found and add their stuff to the FFMPEG_* vars. 0109 foreach (_component ${FFmpeg_FIND_COMPONENTS}) 0110 if (${_component}_FOUND) 0111 # message(STATUS "Required component ${_component} present.") 0112 set(FFMPEG_LIBRARIES ${FFMPEG_LIBRARIES} ${${_component}_LIBRARIES}) 0113 set(FFMPEG_DEFINITIONS ${FFMPEG_DEFINITIONS} ${${_component}_DEFINITIONS}) 0114 list(APPEND FFMPEG_INCLUDE_DIRS ${${_component}_INCLUDE_DIRS}) 0115 else () 0116 # message(STATUS "Required component ${_component} missing.") 0117 endif () 0118 endforeach () 0119 0120 # Build the include path with duplicates removed. 0121 if (FFMPEG_INCLUDE_DIRS) 0122 list(REMOVE_DUPLICATES FFMPEG_INCLUDE_DIRS) 0123 endif () 0124 0125 # cache the vars. 0126 set(FFMPEG_INCLUDE_DIRS ${FFMPEG_INCLUDE_DIRS} CACHE STRING "The FFmpeg include directories." FORCE) 0127 set(FFMPEG_LIBRARIES ${FFMPEG_LIBRARIES} CACHE STRING "The FFmpeg libraries." FORCE) 0128 set(FFMPEG_DEFINITIONS ${FFMPEG_DEFINITIONS} CACHE STRING "The FFmpeg cflags." FORCE) 0129 0130 mark_as_advanced(FFMPEG_INCLUDE_DIRS 0131 FFMPEG_LIBRARIES 0132 FFMPEG_DEFINITIONS) 0133 0134 endif () 0135 0136 # Now set the noncached _FOUND vars for the components. 0137 foreach (_component AVCODEC AVDEVICE AVFORMAT AVUTIL POSTPROCESS SWSCALE) 0138 set_component_found(${_component}) 0139 endforeach () 0140 0141 # Compile the list of required vars 0142 set(_FFmpeg_REQUIRED_VARS FFMPEG_LIBRARIES FFMPEG_INCLUDE_DIRS) 0143 foreach (_component ${FFmpeg_FIND_COMPONENTS}) 0144 list(APPEND _FFmpeg_REQUIRED_VARS ${_component}_LIBRARIES ${_component}_INCLUDE_DIRS) 0145 endforeach () 0146 0147 # Give a nice error message if some of the required vars are missing. 0148 find_package_handle_standard_args(FFmpeg DEFAULT_MSG ${_FFmpeg_REQUIRED_VARS})