mirror of https://github.com/FreeRDP/FreeRDP
[cmake,ffmpeg] update CMake detection script
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akallabeth
parent
02d9d56536
commit
073426d4c1
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@ -1,78 +1,179 @@
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# - Try to find FFmpeg
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# Using Pkg-config if available for path
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# vim: ts=2 sw=2
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# - Try to find the required ffmpeg components(default: AVFORMAT, AVUTIL, AVCODEC)
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#
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# FFMPEG_FOUND - all required ffmpeg components found on system
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# FFMPEG_INCLUDE_DIRS - combined include directories
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# FFMPEG_LIBRARIES - combined libraries to link
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set(REQUIRED_AVCODEC_VERSION 0.8)
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set(REQUIRED_AVCODEC_API_VERSION 53.25.0)
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find_package(PkgConfig)
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if (PKG_CONFIG_FOUND)
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pkg_check_modules(AVCODEC libavcodec)
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pkg_check_modules(AVUTIL libavutil)
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pkg_check_modules(AVRESAMPLE libavresample)
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pkg_check_modules(SWRESAMPLE libswresample)
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endif(PKG_CONFIG_FOUND)
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# avcodec
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find_path(AVCODEC_INCLUDE_DIR libavcodec/avcodec.h PATHS ${AVCODEC_INCLUDE_DIRS})
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find_library(AVCODEC_LIBRARY avcodec PATHS ${AVCODEC_LIBRARY_DIRS})
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# avutil
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find_path(AVUTIL_INCLUDE_DIR libavutil/avutil.h PATHS ${AVUTIL_INCLUDE_DIRS})
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find_library(AVUTIL_LIBRARY avutil PATHS ${AVUTIL_LIBRARY_DIRS})
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# swresample
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find_path(SWRESAMPLE_INCLUDE_DIR libswresample/swresample.h PATHS ${SWRESAMPLE_INCLUDE_DIRS})
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find_library(SWRESAMPLE_LIBRARY NAMES swresample swresample-3 PATHS ${SWRESAMPLE_LIBRARY_DIRS})
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if (SWRESAMPLE_INCLUDE_DIR AND SWRESAMPLE_LIBRARY)
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set(SWRESAMPLE_FOUND ON)
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endif()
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# avresample
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find_path(AVRESAMPLE_INCLUDE_DIR libavresample/avresample.h PATHS ${AVRESAMPLE_INCLUDE_DIRS})
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find_library(AVRESAMPLE_LIBRARY avresample PATHS ${AVRESAMPLE_LIBRARY_DIRS})
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if (AVRESAMPLE_INCLUDE_DIR AND AVRESAMPLE_LIBRARY)
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set(AVRESAMPLE_FOUND ON)
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endif()
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if (AVCODEC_INCLUDE_DIR AND AVCODEC_LIBRARY)
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set(AVCODEC_FOUND TRUE)
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endif(AVCODEC_INCLUDE_DIR AND AVCODEC_LIBRARY)
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if (AVUTIL_INCLUDE_DIR AND AVUTIL_LIBRARY)
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set(AVUTIL_FOUND TRUE)
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endif(AVUTIL_INCLUDE_DIR AND AVUTIL_LIBRARY)
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# Once done this will define
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# FFMPEG_FOUND - System has the all required components.
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# FFMPEG_INCLUDE_DIRS - Include directory necessary for using the required components headers.
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# FFMPEG_LIBRARIES - Link these to use the required ffmpeg components.
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# FFMPEG_DEFINITIONS - Compiler switches required for using the required ffmpeg components.
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#
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# For each of the components
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# - AVCODEC
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# - AVDEVICE
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# - AVFORMAT
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# - AVFILTER
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# - AVUTIL
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# - POSTPROCESS
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# - SWSCALE
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# - SWRESAMPLE
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# the following variables will be defined:
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# <component>_FOUND - System has <component>
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# <component>_INCLUDE_DIRS - Include directory necessary for using the <component> headers
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# <component>_LIBRARIES - Link these to use <component>
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# <component>_DEFINITIONS - Compiler switches required for using <component>
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# <component>_VERSION - The components version
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#
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# As the versions of the various FFmpeg components differ for a given release,
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# and CMake supports only one common version for all components, use the
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# following to specify required versions for multiple components:
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#
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# find_package(FFmpeg 57.48 COMPONENTS AVCODEC)
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# find_package(FFmpeg 57.40 COMPONENTS AVFORMAT)
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# find_package(FFmpeg 55.27 COMPONENTS AVUTIL)
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#
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# SPDX-FileCopyrightText: 2006 Matthias Kretz <kretz@kde.org>
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# SPDX-FileCopyrightText: 2008 Alexander Neundorf <neundorf@kde.org>
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# SPDX-FileCopyrightText: 2011 Michael Jansen <kde@michael-jansen.biz>
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# SPDX-FileCopyrightText: 2021 Stefan Brüns <stefan.bruens@rwth-aachen.de>
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# SPDX-License-Identifier: BSD-3-Clause
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include(FindPackageHandleStandardArgs)
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if (SWRESAMPLE_FOUND)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(FFmpeg DEFAULT_MSG AVUTIL_FOUND AVCODEC_FOUND SWRESAMPLE_FOUND)
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else()
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(FFmpeg DEFAULT_MSG AVUTIL_FOUND AVCODEC_FOUND AVRESAMPLE_FOUND)
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if(NOT FFmpeg_FIND_COMPONENTS)
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# The default components were taken from a survey over other FindFFMPEG.cmake files
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set(FFmpeg_FIND_COMPONENTS AVCODEC AVFORMAT AVUTIL)
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endif()
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if (AVCODEC_VERSION)
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if (${AVCODEC_VERSION} VERSION_LESS ${REQUIRED_AVCODEC_API_VERSION})
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message(FATAL_ERROR
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"libavcodec version >= ${REQUIRED_AVCODEC_VERSION} (API >= ${REQUIRED_AVCODEC_API_VERSION}) is required")
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endif()
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else(AVCODEC_VERSION)
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message("Note: To build libavcodec version >= ${REQUIRED_AVCODEC_VERSION} (API >= ${REQUIRED_AVCODEC_API_VERSION}) is required")
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endif(AVCODEC_VERSION)
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list(LENGTH FFmpeg_FIND_COMPONENTS _numComponents)
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if (FFMPEG_FOUND)
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if (SWRESAMPLE_FOUND)
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set(FFMPEG_INCLUDE_DIRS ${AVCODEC_INCLUDE_DIR} ${AVUTIL_INCLUDE_DIR} ${SWRESAMPLE_INCLUDE_DIR})
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set(FFMPEG_LIBRARIES ${AVCODEC_LIBRARY} ${AVUTIL_LIBRARY} ${SWRESAMPLE_LIBRARY})
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elseif (AVRESAMPLE_FOUND)
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set(FFMPEG_INCLUDE_DIRS ${AVCODEC_INCLUDE_DIR} ${AVUTIL_INCLUDE_DIR} ${AVRESAMPLE_INCLUDE_DIR})
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set(FFMPEG_LIBRARIES ${AVCODEC_LIBRARY} ${AVUTIL_LIBRARY} ${AVRESAMPLE_LIBRARY})
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endif()
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endif(FFMPEG_FOUND)
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if((${_numComponents} GREATER 1) AND DEFINED ${FFmpeg_FIND_VERSION})
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message(WARNING "Using a required version in combination with multiple COMPONENTS is not supported")
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set(_FFmpeg_REQUIRED_VERSION 0)
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elseif(DEFINED FFmpeg_FIND_VERSION)
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set(_FFmpeg_REQUIRED_VERSION ${FFmpeg_FIND_VERSION})
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else()
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set(_FFmpeg_REQUIRED_VERSION 0)
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endif()
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mark_as_advanced(FFMPEG_INCLUDE_DIRS FFMPEG_LIBRARIES)
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set(_FFmpeg_ALL_COMPONENTS AVCODEC AVDEVICE AVFORMAT AVFILTER AVUTIL POSTPROCESS SWSCALE SWRESAMPLE)
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#
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# ## Macro: set_component_found
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#
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# Marks the given component as found if both *_LIBRARIES AND *_INCLUDE_DIRS is present.
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#
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macro(set_component_found _component)
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if(${_component}_LIBRARIES AND ${_component}_INCLUDE_DIRS)
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set(${_component}_FOUND TRUE)
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set(FFmpeg_${_component}_FOUND TRUE)
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endif()
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endmacro()
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#
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# ## Macro: find_component
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#
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# Checks for the given component by invoking pkgconfig and then looking up the libraries and
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# include directories.
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#
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macro(find_component _component _pkgconfig _library _header)
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if(NOT WIN32)
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# use pkg-config to get the directories and then use these values
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# in the FIND_PATH() and FIND_LIBRARY() calls
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find_package(PkgConfig)
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if(PKG_CONFIG_FOUND)
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pkg_check_modules(PC_${_component} QUIET ${_pkgconfig})
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endif()
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endif(NOT WIN32)
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find_path(${_component}_INCLUDE_DIRS ${_header}
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HINTS
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${PC_LIB${_component}_INCLUDEDIR}
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${PC_LIB${_component}_INCLUDE_DIRS}
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PATH_SUFFIXES
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ffmpeg
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)
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find_library(${_component}_LIBRARIES NAMES ${_library}
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HINTS
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${PC_LIB${_component}_LIBDIR}
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${PC_LIB${_component}_LIBRARY_DIRS}
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)
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set(${_component}_DEFINITIONS ${PC_${_component}_CFLAGS_OTHER} CACHE STRING "The ${_component} CFLAGS.")
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set(${_component}_VERSION ${PC_${_component}_VERSION} CACHE STRING "The ${_component} version number.")
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set_component_found(${_component})
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mark_as_advanced(
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${_component}_INCLUDE_DIRS
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${_component}_LIBRARIES
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${_component}_DEFINITIONS
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${_component}_VERSION)
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endmacro()
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# Check for cached results. If there are skip the costly part.
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if(NOT FFMPEG_LIBRARIES)
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# Check for all possible component.
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find_component(AVCODEC libavcodec avcodec libavcodec/avcodec.h)
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find_component(AVFORMAT libavformat avformat libavformat/avformat.h)
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find_component(AVFILTER libavfilter avfilter libavfilter/avfilter.h)
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find_component(AVDEVICE libavdevice avdevice libavdevice/avdevice.h)
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find_component(AVUTIL libavutil avutil libavutil/avutil.h)
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find_component(SWSCALE libswscale swscale libswscale/swscale.h)
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find_component(SWRESAMPLE libswresample swresample libswresample/swresample.h)
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find_component(POSTPROCESS libpostproc postproc libpostproc/postprocess.h)
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# Check if the required components were found and add their stuff to the FFMPEG_* vars.
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foreach(_component ${_FFmpeg_ALL_COMPONENTS})
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if(${_component}_FOUND)
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set(FFMPEG_LIBRARIES ${FFMPEG_LIBRARIES} ${${_component}_LIBRARIES})
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set(FFMPEG_DEFINITIONS ${FFMPEG_DEFINITIONS} ${${_component}_DEFINITIONS})
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list(APPEND FFMPEG_INCLUDE_DIRS ${${_component}_INCLUDE_DIRS})
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endif()
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endforeach()
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# Build the include path with duplicates removed.
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if(FFMPEG_INCLUDE_DIRS)
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list(REMOVE_DUPLICATES FFMPEG_INCLUDE_DIRS)
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endif()
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# cache the vars.
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set(FFMPEG_INCLUDE_DIRS ${FFMPEG_INCLUDE_DIRS} CACHE STRING "The FFmpeg include directories." FORCE)
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set(FFMPEG_LIBRARIES ${FFMPEG_LIBRARIES} CACHE STRING "The FFmpeg libraries." FORCE)
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set(FFMPEG_DEFINITIONS ${FFMPEG_DEFINITIONS} CACHE STRING "The FFmpeg cflags." FORCE)
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mark_as_advanced(FFMPEG_INCLUDE_DIRS
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FFMPEG_LIBRARIES
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FFMPEG_DEFINITIONS)
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else()
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# Set the noncached _FOUND vars for the components.
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foreach(_component ${_FFmpeg_ALL_COMPONENTS})
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set_component_found(${_component})
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endforeach()
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endif()
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# Compile the list of required vars
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unset(_FFmpeg_REQUIRED_VARS)
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set(_FFmpeg_FOUND_LIBRARIES "")
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foreach(_component ${FFmpeg_FIND_COMPONENTS})
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if(${_component}_FOUND)
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if(${_component}_VERSION VERSION_LESS _FFmpeg_REQUIRED_VERSION)
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message(STATUS "${_component}: ${${_component}_VERSION} < ${_FFmpeg_REQUIRED_VERSION}")
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unset(${_component}_FOUND)
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endif()
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list(APPEND _FFmpeg_FOUND_LIBRARIES ${${_component}_LIBRARIES})
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endif()
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list(APPEND _FFmpeg_REQUIRED_VARS ${_component}_LIBRARIES ${_component}_INCLUDE_DIRS ${_component}_FOUND)
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endforeach()
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list(INSERT _FFmpeg_REQUIRED_VARS 0 _FFmpeg_FOUND_LIBRARIES)
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# Give a nice error message if some of the required vars are missing.
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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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