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# Copyright (c) 2014 Matt Coffin <mcoffin13@gmail.com>
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#
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# This software is provided 'as-is', without any express or implied
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# warranty. In no event will the authors be held liable for any damages
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# arising from the use of this software.
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#
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# Permission is granted to anyone to use this software for any purpose,
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# including commercial applications, and to alter it and redistribute it
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# freely, subject to the following restrictions:
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#
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# 1. The origin of this software must not be misrepresented; you must not
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# claim that you wrote the original software. If you use this software
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# in a product, an acknowledgment in the product documentation would be
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# appreciated but is not required.
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# 2. Altered source versions must be plainly marked as such, and must not be
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# misrepresented as being the original software.
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# 3. This notice may not be removed or altered from any source distribution.
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# - Try to find FFmpeg
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# Once done this will define
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# FFmpeg_FOUND
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# FFmpeg_INCLUDE_DIRS
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# FFmpeg_LIBRARIES
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# FFmpeg_INCLUDE_FILES
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# Author: Matt Coffin <mcoffin13@gmail.com>
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# 2018-11-29: NeroBurner: add FFmpeg_INCLUDE_DIRS and FFmpeg_LIBRARY_DIRS as hints for all targets
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# 2018-12-03: NeroBurner: use FFmpeg_INCLUDE_DIR to resolve name collision, ignore root path if set
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# 2018-12-10: NeroBurner: fix detection whether FFmpeg_INCLUDE_DIR is set
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include(FindPackageHandleStandardArgs)
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if (NOT FFmpeg_FIND_COMPONENTS)
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set(FFmpeg_FIND_COMPONENTS avcodec avdevice avfilter avformat avutil swresample swscale)
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endif(NOT FFmpeg_FIND_COMPONENTS)
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# Generate component include files and requirements
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foreach(comp ${FFmpeg_FIND_COMPONENTS})
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if(FFmpeg_FIND_REQUIRED_${comp})
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list(APPEND required "FFmpeg_${comp}_FOUND")
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endif()
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endforeach(comp)
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if(CMAKE_SIZEOF_VOID_P EQUAL 8)
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set(_lib_suffix 64)
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else()
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set(_lib_suffix 32)
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endif()
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set(FFMPEG_PATH_ARCH FFmpegPath${_lib_suffix})
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# Find libraries
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find_package(PkgConfig QUIET)
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foreach(comp ${FFmpeg_FIND_COMPONENTS})
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if(PKG_CONFIG_FOUND)
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pkg_check_modules(_${comp} QUIET lib${comp})
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endif()
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string(COMPARE NOTEQUAL "${FFmpeg_INCLUDE_DIR}" "" ffmpeg_include_dir_set)
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if(ffmpeg_include_dir_set)
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# search just provided directory
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find_path(FFmpeg_${comp}_INCLUDE_DIR
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"lib${comp}/${comp}.h"
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PATHS
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${FFmpeg_INCLUDE_DIR}
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PATH_SUFFIXES ffmpeg libav
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NO_CMAKE_FIND_ROOT_PATH
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NO_CMAKE_ENVIRONMENT_PATH
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NO_SYSTEM_ENVIRONMENT_PATH
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NO_DEFAULT_PATH)
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find_library(FFmpeg_${comp}_LIBRARY
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NAMES ${comp} ${comp}-ffmpeg ${_${comp}_LIBRARIES}
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PATHS
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"${FFmpeg_${comp}_INCLUDE_DIR}/../lib"
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"${FFmpeg_${comp}_INCLUDE_DIR}/../lib${_lib_suffix}"
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"${FFmpeg_${comp}_INCLUDE_DIR}/../libs${_lib_suffix}"
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"${FFmpeg_${comp}_INCLUDE_DIR}/lib"
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"${FFmpeg_${comp}_INCLUDE_DIR}/lib${_lib_suffix}"
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${FFmpeg_LIBRARY_DIRS}
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${_${comp}_LIBRARY_DIRS}
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PATH_SUFFIXES ${comp} lib${comp}
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DOC "FFmpeg ${comp} library"
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NO_CMAKE_FIND_ROOT_PATH
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NO_CMAKE_ENVIRONMENT_PATH
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NO_SYSTEM_ENVIRONMENT_PATH
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NO_DEFAULT_PATH)
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endif()
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# find path with generic include paths
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find_path(FFmpeg_${comp}_INCLUDE_DIR
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NAMES "lib${comp}/${comp}.h"
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HINTS
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${FFmpeg_INCLUDE_DIR}
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${_${comp}_INCLUDE_DIRS}
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ENV FFmpegPath
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ENV ${FFMPEG_PATH_ARCH}
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PATHS
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/usr/include /usr/local/include /opt/local/include /sw/include
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PATH_SUFFIXES ffmpeg libav
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DOC "FFmpeg include directory")
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find_library(FFmpeg_${comp}_LIBRARY
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NAMES ${comp} ${comp}-ffmpeg ${_${comp}_LIBRARIES}
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HINTS
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${FFmpeg_LIBRARY_DIRS}
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${_${comp}_LIBRARY_DIRS}
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"${FFmpeg_${comp}_INCLUDE_DIR}/../lib"
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"${FFmpeg_${comp}_INCLUDE_DIR}/../lib${_lib_suffix}"
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"${FFmpeg_${comp}_INCLUDE_DIR}/../libs${_lib_suffix}"
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"${FFmpeg_${comp}_INCLUDE_DIR}/lib"
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"${FFmpeg_${comp}_INCLUDE_DIR}/lib${_lib_suffix}"
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PATHS
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/usr/lib /usr/local/lib /opt/local/lib /sw/lib
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PATH_SUFFIXES ${comp} lib${comp}
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DOC "FFmpeg ${comp} library")
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find_package_handle_standard_args(FFmpeg_${comp}
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FOUND_VAR FFmpeg_${comp}_FOUND
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REQUIRED_VARS FFmpeg_${comp}_LIBRARY FFmpeg_${comp}_INCLUDE_DIR)
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if(${FFmpeg_${comp}_FOUND})
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list(APPEND FFmpeg_INCLUDE_DIRS ${FFmpeg_${comp}_INCLUDE_DIR})
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list(APPEND FFmpeg_LIBRARIES ${FFmpeg_${comp}_LIBRARY})
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endif()
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endforeach(comp)
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# Run checks via find_package_handle_standard_args
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find_package_handle_standard_args(FFmpeg
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FOUND_VAR FFmpeg_FOUND
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REQUIRED_VARS ${required} FFmpeg_INCLUDE_DIRS FFmpeg_LIBRARIES)
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# remove duplicate include dir entries
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list(REMOVE_DUPLICATES FFmpeg_INCLUDE_DIRS)
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