92 lines
2.4 KiB
CMake
92 lines
2.4 KiB
CMake
# SPDX-FileCopyrightText: 2020 Blender Authors
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#
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# SPDX-License-Identifier: BSD-3-Clause
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# - Find FFmpeg library and includes.
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# Set FFMPEG_FIND_COMPONENTS to the canonical names of the libraries
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# before using the module.
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# This module defines
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# FFMPEG_INCLUDE_DIRS, where to find libavcodec/ac3_parser.h.
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# FFMPEG_LIBRARIES, libraries to link against to use FFmpeg.
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# FFMPEG_ROOT_DIR, The base directory to search for FFmpeg.
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# This can also be an environment variable.
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# FFMPEG_FOUND, If false, do not try to use FFmpeg.
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# FFMPEG_<COMPONENT>_LIBRARY, the given individual component libraries.
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# If `FFMPEG_ROOT_DIR` was defined in the environment, use it.
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if(DEFINED FFMPEG_ROOT_DIR)
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# Pass.
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elseif(DEFINED ENV{FFMPEG_ROOT_DIR})
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set(FFMPEG_ROOT_DIR $ENV{FFMPEG_ROOT_DIR})
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else()
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set(FFMPEG_ROOT_DIR "")
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endif()
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set(_ffmpeg_SEARCH_DIRS
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${FFMPEG_ROOT_DIR}
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/opt/lib/ffmpeg
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)
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if(NOT FFMPEG_FIND_COMPONENTS)
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set(FFMPEG_FIND_COMPONENTS
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# List taken from http://ffmpeg.org/download.html#build-mac
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avcodec
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avdevice
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avfilter
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avformat
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avutil
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swscale
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swresample
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)
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endif()
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find_path(_ffmpeg_INCLUDE_DIR
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NAMES
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libavcodec/ac3_parser.h
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HINTS
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${_ffmpeg_SEARCH_DIRS}
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PATH_SUFFIXES
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include
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)
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set(_ffmpeg_LIBRARIES)
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foreach(_component ${FFMPEG_FIND_COMPONENTS})
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string(TOUPPER ${_component} _upper_COMPONENT)
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find_library(FFMPEG_${_upper_COMPONENT}_LIBRARY
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NAMES
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${_component}
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HINTS
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${_ffmpeg_SEARCH_DIRS}
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PATH_SUFFIXES
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lib64 lib
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)
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if(NOT FFMPEG_${_upper_COMPONENT}_LIBRARY)
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message(WARNING "Could NOT find FFmpeg ${_upper_COMPONENT}.")
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endif()
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list(APPEND _ffmpeg_LIBRARIES ${FFMPEG_${_upper_COMPONENT}_LIBRARY})
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mark_as_advanced(FFMPEG_${_upper_COMPONENT}_LIBRARY)
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endforeach()
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unset(_component)
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unset(_upper_COMPONENT)
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# handle the QUIETLY and REQUIRED arguments and set FFMPEG_FOUND to TRUE if
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# all listed variables are TRUE
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(FFmpeg DEFAULT_MSG
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_ffmpeg_LIBRARIES _ffmpeg_INCLUDE_DIR)
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if(FFMPEG_FOUND)
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set(FFMPEG_LIBRARIES ${_ffmpeg_LIBRARIES})
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set(FFMPEG_INCLUDE_DIRS ${_ffmpeg_INCLUDE_DIR})
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endif()
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mark_as_advanced(
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FFMPEG_INCLUDE_DIR
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)
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unset(_ffmpeg_SEARCH_DIRS)
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unset(_ffmpeg_LIBRARIES)
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# In cmake version 3.21 and up, we can instead use the NO_CACHE option for
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# find_path so we don't need to clear it from the cache here.
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unset(_ffmpeg_INCLUDE_DIR CACHE)
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