panda3d/cmake/modules/FindFFMPEG.cmake

# Filename: FindFFMPEG.cmake
# Author: CFSworks (10 Apr, 2014)
#
# Usage:
#   find_package(FFMPEG [REQUIRED] [QUIET])
#
# Once done this will define:
#   FFMPEG_FOUND       - system has ffmpeg
#   FFMPEG_INCLUDE_DIR - the ffmpeg include directory
#   FFMPEG_LIBRARIES   - the path to the library binary
#
#   FFMPEG_LIBAVCODEC  - the path to the libavcodec library binary
#   FFMPEG_LIBAVFORMAT - the path to the libavformat library binary
#   FFMPEG_LIBAVUTIL   - the path to the libavutil library binary
#

if(NOT FFMPEG_INCLUDE_DIR OR NOT FFMPEG_LIBRARY_DIR)
	# Find the libffmpeg include files
	find_path(FFMPEG_INCLUDE_DIR
		NAMES "libavcodec/avcodec.h"
		PATHS "/usr/include"
		      "/usr/local/include"
		      "/sw/include"
		      "/opt/include"
		      "/opt/local/include"
		      "/opt/csw/include"
		PATH_SUFFIXES "libav" "ffmpeg"
	)

	# Find the libavcodec library
  find_library(FFMPEG_LIBAVCODEC
		NAMES "avcodec"
		PATHS "/usr"
		      "/usr/local"
		      "/usr/freeware"
		      "/sw"
		      "/opt"
		      "/opt/csw"
		PATH_SUFFIXES "lib" "lib32" "lib64"
	)

	# Find the libavformat library
  find_library(FFMPEG_LIBAVFORMAT
		NAMES "avformat"
		PATHS "/usr"
		      "/usr/local"
		      "/usr/freeware"
		      "/sw"
		      "/opt"
		      "/opt/csw"
		PATH_SUFFIXES "lib" "lib32" "lib64"
	)

	# Find the libavutil library
  find_library(FFMPEG_LIBAVUTIL
		NAMES "avutil"
		PATHS "/usr"
		      "/usr/local"
		      "/usr/freeware"
		      "/sw"
		      "/opt"
		      "/opt/csw"
		PATH_SUFFIXES "lib" "lib32" "lib64"
	)

	mark_as_advanced(FFMPEG_INCLUDE_DIR)
  mark_as_advanced(FFMPEG_LIBAVCODEC)
  mark_as_advanced(FFMPEG_LIBAVFORMAT)
  mark_as_advanced(FFMPEG_LIBAVUTIL)
endif()

# Translate library into library directory
if(FFMPEG_LIBAVCODEC)
  unset(FFMPEG_LIBRARY_DIR CACHE)
  get_filename_component(FFMPEG_LIBRARY_DIR "${FFMPEG_LIBAVCODEC}" PATH)
  set(FFMPEG_LIBRARY_DIR "${FFMPEG_LIBRARY_DIR}" CACHE PATH "The path to libffmpeg's library directory.") # Library path
endif()

set(FFMPEG_LIBRARIES)
if(FFMPEG_LIBAVCODEC)
  list(APPEND FFMPEG_LIBRARIES "${FFMPEG_LIBAVCODEC}")
endif()
if(FFMPEG_LIBAVFORMAT)
  list(APPEND FFMPEG_LIBRARIES "${FFMPEG_LIBAVFORMAT}")
endif()
if(FFMPEG_LIBAVUTIL)
  list(APPEND FFMPEG_LIBRARIES "${FFMPEG_LIBAVUTIL}")
endif()

mark_as_advanced(FFMPEG_LIBRARY_DIR)

include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(FFMPEG DEFAULT_MSG FFMPEG_LIBRARIES FFMPEG_LIBAVCODEC FFMPEG_LIBAVFORMAT FFMPEG_LIBAVUTIL FFMPEG_INCLUDE_DIR FFMPEG_LIBRARY_DIR)