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# Tries to find FFmpeg libraries
# Once done this will define
#
# FFMPEG_FOUND - System has FFmpeg
# FFMPEG_VERSION - FFmpeg version (it's actually libavformat version)
# FFMPEG_INCLUDE_DIRS - FFmpeg include directories
# FFMPEG_LIBRARIES - FFmpeg libraries
#
# disabled: AVDEVICE POSTPROC AVFILTER
set(_avmodules AVFORMAT AVCODEC SWRESAMPLE SWSCALE AVUTIL)
# FFMPEG_(avmodule)_VERSION - module version
# FFMPEG_(avmodule)_INCLUDE_DIR - module include directory
# FFMPEG_(avmodule)_LIBRARY - module library
# SPDX-FileCopyrightText: 2010-2019 Mladen Milinkovic <maxrd2@smoothware.net>
# SPDX-License-Identifier: BSD-3-Clause
find_package(PkgConfig REQUIRED)
foreach(MODULE ${_avmodules})
string(TOLOWER ${MODULE} module)
pkg_check_modules(PC_FFMPEG_${MODULE} QUIET lib${module})
set(FFMPEG_${MODULE}_VERSION ${PC_FFMPEG_${MODULE}_VERSION})
find_path(FFMPEG_${MODULE}_INCLUDE_DIR lib${module}/version.h
HINTS
${PC_FFMPEG_${MODULE}_INCLUDEDIR} ${PC_FFMPEG_${MODULE}_INCLUDE_DIRS}
PATH_SUFFIXES ffmpeg)
list(APPEND _required_vars FFMPEG_${MODULE}_INCLUDE_DIR)
list(APPEND FFMPEG_INCLUDE_DIRS ${FFMPEG_${MODULE}_INCLUDE_DIR})
find_library(FFMPEG_${MODULE}_LIBRARY
NAMES ${module}
HINTS
${PC_FFMPEG_${MODULE}_LIBDIR} ${PC_FFMPEG_${MODULE}_LIBRARY_DIRS})
list(APPEND _required_vars FFMPEG_${MODULE}_LIBRARY)
list(APPEND FFMPEG_LIBRARIES ${FFMPEG_${MODULE}_LIBRARY})
endforeach()
list(REMOVE_DUPLICATES FFMPEG_INCLUDE_DIRS)
set(_message "\n\tincludes: ${FFMPEG_INCLUDE_DIRS}\n\tlibs:")
foreach(MODULE ${_avmodules})
set(_message "${_message}\t${FFMPEG_${MODULE}_LIBRARY} (version ${FFMPEG_${MODULE}_VERSION})\n\t")
endforeach()
include(FindPackageHandleStandardArgs)
# handle the QUIETLY and REQUIRED arguments and set FFMPEG_FOUND to TRUE if all listed variables are TRUE
find_package_handle_standard_args(FFmpeg
REQUIRED_VARS _message ${_required_vars}
VERSION_VAR FFMPEG_AVFORMAT_VERSION)
#if(FFMPEG_FOUND AND NOT FFmpeg_FIND_QUIETLY)
# message(STATUS "Found FFmpeg:\n\tinclude dir: ${FFMPEG_INCLUDE_DIRS}")
# foreach(MODULE ${_avmodules})
# message(STATUS "\t${FFMPEG_${MODULE}_LIBRARY} (version ${FFMPEG_${MODULE}_VERSION})")
# endforeach()
#endif()
mark_as_advanced(FFMPEG_INCLUDE_DIRS FFMPEG_LIBRARIES ${_required_vars})
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