# - Try to find ffmpeg libraries (libavcodec, libavformat and libavutil)

# Once done this will define

#

#  FFMPEG_FOUND - system has ffmpeg or libav

#  FFMPEG_INCLUDE_DIR - the ffmpeg include directory

#  FFMPEG_LIBRARIES - Link these to use ffmpeg

#  FFMPEG_LIBAVCODEC

#  FFMPEG_LIBAVFORMAT

#  FFMPEG_LIBAVUTIL

#

#  Copyright (c) 2008 Andreas Schneider <mail@cynapses.org>

#  Modified for other libraries by Lasse Kärkkäinen <tronic>

#  Modified for Hedgewars by Stepik777

#

#  Redistribution and use is allowed according to the terms of the New

#  BSD license.

#

set(FFMPEG_FOUND FALSE)

if (FFMPEG_LIBRARIES AND FFMPEG_INCLUDE_DIR)

  # in cache already

  set(FFMPEG_FOUND TRUE)

else (FFMPEG_LIBRARIES AND FFMPEG_INCLUDE_DIR)

  # silence output option

  if (FFMPEG_FIND_QUIETLY)

    set(VERBOSITY "QUIET")

  endif ()

  # use pkg-config to get the directories and then use these values

  # in the FIND_PATH() and FIND_LIBRARY() calls

  find_package(PkgConfig)

  if (PKG_CONFIG_FOUND)

    pkg_check_modules(_FFMPEG_AVCODEC libavcodec ${VERBOSITY})

    pkg_check_modules(_FFMPEG_AVFORMAT libavformat ${VERBOSITY})

    pkg_check_modules(_FFMPEG_AVUTIL libavutil ${VERBOSITY})

  endif (PKG_CONFIG_FOUND)

  find_path(FFMPEG_AVCODEC_INCLUDE_DIR

    NAMES libavcodec/avcodec.h

    PATHS ${_FFMPEG_AVCODEC_INCLUDE_DIRS}

        /usr/include /usr/local/include #system level

        /opt/local/include #macports

        /sw/include #fink

    PATH_SUFFIXES ffmpeg libav

  )

  find_library(FFMPEG_LIBAVCODEC

    NAMES avcodec

    PATHS ${_FFMPEG_AVCODEC_LIBRARY_DIRS}

        /usr/lib /usr/local/lib #system level

        /opt/local/lib #macports

        /sw/lib #fink

  )

  find_library(FFMPEG_LIBAVFORMAT

    NAMES avformat

    PATHS ${_FFMPEG_AVFORMAT_LIBRARY_DIRS}

        /usr/lib /usr/local/lib #system level

        /opt/local/lib #macports

        /sw/lib #fink

  )

  find_library(FFMPEG_LIBAVUTIL

    NAMES avutil

    PATHS ${_FFMPEG_AVUTIL_LIBRARY_DIRS}

        /usr/lib /usr/local/lib #system level

        /opt/local/lib #macports

        /sw/lib #fink

  )

  if (FFMPEG_LIBAVCODEC AND FFMPEG_LIBAVFORMAT)

    set(FFMPEG_FOUND TRUE)

  endif()

  if (FFMPEG_FOUND)

    set(FFMPEG_INCLUDE_DIR ${FFMPEG_AVCODEC_INCLUDE_DIR})

    set(FFMPEG_LIBRARIES

      ${FFMPEG_LIBAVCODEC}

      ${FFMPEG_LIBAVFORMAT}

      ${FFMPEG_LIBAVUTIL}

    )

  endif (FFMPEG_FOUND)

  if (FFMPEG_FOUND)

    if (NOT FFMPEG_FIND_QUIETLY)

      message(STATUS "Found FFMPEG/LibAV: ${FFMPEG_LIBRARIES}, ${FFMPEG_INCLUDE_DIR}")

    endif (NOT FFMPEG_FIND_QUIETLY)

  else (FFMPEG_FOUND)

    if (FFMPEG_FIND_REQUIRED)

      message(FATAL_ERROR "Could NOT find libavcodec or libavformat or libavutil")

    endif (FFMPEG_FIND_REQUIRED)

  endif (FFMPEG_FOUND)

endif (FFMPEG_LIBRARIES AND FFMPEG_INCLUDE_DIR)