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# - Try to find ffmpeg
# Once done this will define
#
# FFMPEG_FOUND - system has ffmpeg
# FFMPEG_INCLUDE_DIR - Include directory necessary for using the ffmpeg headers
# FFMPEG_LIBRARIES - Link these to use ffmpeg
# FFMPEG_DEFINITIONS - Compiler switches required for using ffmpeg
# Copyright (c) 2006, Matthias Kretz, <kretz@kde.org>
# Copyright (c) 2008, Alexander Neundorf, <neundorf@kde.org>
#
# Redistribution and use is allowed according to the terms of the BSD license.
# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
if (FFMPEG_LIBRARIES)
# in cache already
set(FFMPEG_FOUND TRUE)
else (FFMPEG_LIBRARIES)
if (NOT WIN32)
# use pkg-config to get the directories and then use these values
# in the FIND_PATH() and FIND_LIBRARY() calls
find_package(PkgConfig)
pkg_check_modules(PC_LIBAVCODEC libavcodec)
set(FFMPEG_DEFINITIONS ${PC_LIBAVCODEC_CFLAGS_OTHER})
endif (NOT WIN32)
#
# #include <libXXXX/XXXX.h> is the new style for FFMPEG headers
# This has been verified at least since 0.4.9
# Please do not change to the old format, since this will break for
# people who are using newer versions. Instead, upgrade your ffmpeg
# installation.
#
find_path(FFMPEG_INCLUDE_DIR libavcodec/avcodec.h
HINTS
${PC_LIBAVCODEC_INCLUDEDIR}
${PC_LIBAVCODEC_INCLUDE_DIRS}
)
# also search for the old style include dir, just for the purpose
# of giving a useful error message if an old libavcodec is installed
# and the user might wonder why it is not found
find_path(FFMPEG_INCLUDE_DIR_OLD_STYLE ffmpeg/avcodec.h
HINTS
${PC_LIBAVCODEC_INCLUDEDIR}
${PC_LIBAVCODEC_INCLUDE_DIRS}
)
find_library(AVCODEC_LIBRARIES NAMES avcodec
HINTS
${PC_LIBAVCODEC_LIBDIR}
${PC_LIBAVCODEC_LIBRARY_DIRS}
)
find_library(AVFORMAT_LIBRARIES NAMES avformat
HINTS
${PC_LIBAVCODEC_LIBDIR}
${PC_LIBAVCODEC_LIBRARY_DIRS}
)
find_library(AVUTIL_LIBRARIES NAMES avutil
HINTS
${PC_LIBAVCODEC_LIBDIR}
${PC_LIBAVCODEC_LIBRARY_DIRS}
)
set(FFMPEG_LIBRARIES )
if (AVCODEC_LIBRARIES)
set(FFMPEG_LIBRARIES ${FFMPEG_LIBRARIES} ${AVCODEC_LIBRARIES})
endif (AVCODEC_LIBRARIES)
if (AVFORMAT_LIBRARIES)
set(FFMPEG_LIBRARIES ${FFMPEG_LIBRARIES} ${AVFORMAT_LIBRARIES})
endif (AVFORMAT_LIBRARIES)
if (AVUTIL_LIBRARIES)
set(FFMPEG_LIBRARIES ${FFMPEG_LIBRARIES} ${AVUTIL_LIBRARIES})
endif (AVUTIL_LIBRARIES)
if (FFMPEG_LIBRARIES AND FFMPEG_INCLUDE_DIR)
set(FFMPEG_FOUND TRUE)
endif (FFMPEG_LIBRARIES AND FFMPEG_INCLUDE_DIR)
if (FFMPEG_FOUND)
if (NOT FFmpeg_FIND_QUIETLY)
message(STATUS "Found FFMPEG: ${FFMPEG_LIBRARIES} ${FFMPEG_INCLUDE_DIR}")
endif (NOT FFmpeg_FIND_QUIETLY)
else (FFMPEG_FOUND)
# only an old libavcodec was found ?
if (FFMPEG_INCLUDE_DIR_OLD_STYLE AND NOT FFMPEG_INCLUDE_DIR AND NOT FFmpeg_FIND_QUIETLY)
message(STATUS "Found old version of libavcodec, but a newer version is required.")
endif (FFMPEG_INCLUDE_DIR_OLD_STYLE AND NOT FFMPEG_INCLUDE_DIR AND NOT FFmpeg_FIND_QUIETLY)
if (FFmpeg_FIND_REQUIRED)
message(FATAL_ERROR "Could NOT find FFMPEG")
else (FFmpeg_FIND_REQUIRED)
if (NOT FFmpeg_FIND_QUIETLY)
message(STATUS "Could NOT find FFMPEG")
endif (NOT FFmpeg_FIND_QUIETLY)
endif (FFmpeg_FIND_REQUIRED)
endif (FFMPEG_FOUND)
mark_as_advanced(AVCODEC_LIBRARIES
AVFORMAT_LIBRARIES
AVUTIL_LIBRARIES
FFMPEG_INCLUDE_DIR
FFMPEG_INCLUDE_DIR_OLD_STYLE)
endif (FFMPEG_LIBRARIES)# AND FFMPEG_DEFINITIONS)
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