# Locate ffmpeg
# This module defines
# FFMPEG_LIBRARIES
# FFMPEG_FOUND, if false, do not try to link to ffmpeg 
# FFMPEG_INCLUDE_DIR, where to find the headers
#
# $FFMPEG_DIR is an environment variable that would
# correspond to the ./configure --prefix=$FFMPEG_DIR
#
# Created by Robert Osfield. 

#use pkg-config to find various modes
INCLUDE(FindPkgConfig OPTIONAL)

IF(PKG_CONFIG_FOUND)

    INCLUDE(FindPkgConfig)

    pkg_check_modules(FFMPEG_LIBAVFORMAT libavformat)
    pkg_check_modules(FFMPEG_LIBAVDEVICE libavdevice)
    pkg_check_modules(FFMPEG_LIBAVCODEC libavcodec)
    pkg_check_modules(FFMPEG_LIBAVUTIL libavutil)

ENDIF(PKG_CONFIG_FOUND)

SET(FFMPEG_FOUND "NO")
IF   (FFMPEG_LIBAVFORMAT_FOUND AND FFMPEG_LIBAVDEVICE_FOUND AND FFMPEG_LIBAVCODEC_FOUND AND FFMPEG_LIBAVUTIL_FOUND)
   
    SET(FFMPEG_FOUND "YES")

    SET(FFMPEG_INCLUDE_DIRS ${FFMPEG_LIBAVFORMAT_INCLUDE_DIRS})

    SET(FFMPEG_LIBRARY_DIRS ${FFMPEG_LIBAVFORMAT_LIBRARY_DIRS})

    SET(FFMPEG_LIBRARIES
        ${FFMPEG_LIBAVFORMAT_LIBRARIES}
        ${FFMPEG_LIBAVDEVICE_LIBRARIES}
        ${FFMPEG_LIBAVCODEC_LIBRARIES}
        ${FFMPEG_LIBAVUTIL_LIBRARIES})
   
ENDIF(FFMPEG_LIBAVFORMAT_FOUND AND FFMPEG_LIBAVDEVICE_FOUND AND FFMPEG_LIBAVCODEC_FOUND AND FFMPEG_LIBAVUTIL_FOUND)