Differential D8918 Diff 29327 build_files/cmake/Modules/FindFFmpeg.cmake

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build_files/cmake/Modules/FindFFmpeg.cmake

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				# - Find FFmpeg library and includes.
				# Set FFMPEG_FIND_COMPONENTS to the canonical names of the libraries
				# before using the package.
				# This module defines
				# FFMPEG_INCLUDE_DIRS, where to find libavcodec/ac3_parser.h.
				# FFMPEG_LIBRARIES, libraries to link against to use FFmpeg.
				# FFMPEG_ROOT_DIR, The base directory to search for FFmpeg.
				# This can also be an environment variable.
				# FFMPEG_FOUND, If false, do not try to use FFmpeg.
				# FFMPEG_<COMPONENT>_LIBRARY, the given individual component libraries.
				#=============================================================================
				# Copyright 2020 Blender Foundation.
				#
				# Distributed under the OSI-approved BSD 3-Clause License,
				# see accompanying file BSD-3-Clause-license.txt for details.
				#=============================================================================

				# If FFMPEG_ROOT_DIR was defined in the environment, use it.
				if(NOT FFMPEG_ROOT_DIR AND NOT $ENV{FFMPEG_ROOT_DIR} STREQUAL "")
				set(FFMPEG_ROOT_DIR $ENV{FFMPEG_ROOT_DIR})
				endif()

				set(_ffmpeg_SEARCH_DIRS
				${FFMPEG_ROOT_DIR}
				/opt/lib/ffmpeg
				)

				if(NOT FFMPEG_FIND_COMPONENTS)
				set(FFMPEG_FIND_COMPONENTS
				# List taken from http://ffmpeg.org/download.html#build-mac
				avcodec
				avdevice
				avfilter
				avformat
				avutil
				)
				endif()

				find_path(_ffmpeg_INCLUDE_DIR
				NAMES
				libavcodec/ac3_parser.h
				HINTS
				${_ffmpeg_SEARCH_DIRS}
				PATH_SUFFIXES
				include
				)

				set(_ffmpeg_LIBRARIES)
				foreach(_component ${FFMPEG_FIND_COMPONENTS})
				string(TOUPPER ${_component} _upper_COMPONENT)
				find_library(FFMPEG_${_upper_COMPONENT}_LIBRARY
				NAMES
				${_upper_COMPONENT}
				HINTS
				${LIBDIR}/ffmpeg
				PATH_SUFFIXES
				lib64 lib
				)
				if(NOT FFMPEG_${_upper_COMPONENT}_LIBRARY)
				message(WARNING "Could not find FFpeg ${_upper_COMPONENT}.")
				endif()
				list(APPEND _ffmpeg_LIBRARIES ${FFMPEG_${_upper_COMPONENT}_LIBRARY})
				mark_as_advanced(FFMPEG_${_upper_COMPONENT}_LIBRARY)
				endforeach()

				# handle the QUIETLY and REQUIRED arguments and set FFMPEG_FOUND to TRUE if
				# all listed variables are TRUE
				include(FindPackageHandleStandardArgs)
				find_package_handle_standard_args(FFmpeg DEFAULT_MSG
				_ffmpeg_LIBRARIES _ffmpeg_INCLUDE_DIR)

				IF(FFMPEG_FOUND)
				set(FFMPEG_LIBRARIES ${_ffmpeg_LIBRARIES})
				set(FFMPEG_INCLUDE_DIRS ${_ffmpeg_INCLUDE_DIR})
				ENDIF(FFMPEG_FOUND)

				mark_as_advanced(
				FFMPEG_INCLUDE_DIR
				)

				unset(_ffmpeg_SEARCH_DIRS)
				unset(_ffmpeg_LIBRARIES)
				unset(_ffmpeg_INCLUDE_DIR)