# FindFFMPEG
# ----------
#
# Find the native FFMPEG includes and libraries
#
# This module defines:
#
#  FFMPEG_INCLUDE_DIR, where to find avformat.h, avcodec.h...
#  FFMPEG_LIBRARIES, the libraries to link against to use FFMPEG.
#  FFMPEG_FOUND, If false, do not try to use FFMPEG.
#
# also defined, but not for general use are:
#
#   FFMPEG_avformat_LIBRARY, where to find the FFMPEG avformat library.
#   FFMPEG_avcodec_LIBRARY, where to find the FFMPEG avcodec library.
#
# This is useful to do it this way so that we can always add more libraries
# if needed to ``FFMPEG_LIBRARIES`` if ffmpeg ever changes...

#=============================================================================
# Copyright: 1993-2008 Ken Martin, Will Schroeder, Bill Lorensen
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of ppsspp, substitute the full
#  License text for the above reference.)

if(EXISTS "/etc/debian_version")
	set (PLATFORM "Debian")
endif()

if(${PLATFORM} MATCHES "Debian")
  find_path(FFMPEG_INCLUDE_DIR1 libavformat/avformat.h)
  find_path(FFMPEG_INCLUDE_DIR2 libavcodec/avcodec.h)
  find_path(FFMPEG_INCLUDE_DIR3 libavutil/avutil.h)
  find_path(FFMPEG_INCLUDE_DIR4 libswresample/swresample.h)
  find_path(FFMPEG_INCLUDE_DIR5 libswscale/swscale.h)
else()
  find_path(FFMPEG_INCLUDE_DIR1 avformat.h
    $ENV{FFMPEG_DIR}
    $ENV{FFMPEG_DIR}/ffmpeg
    $ENV{FFMPEG_DIR}/libavformat
    $ENV{FFMPEG_DIR}/include/libavformat
    $ENV{FFMPEG_DIR}/include/ffmpeg
    /usr/local/include/ffmpeg
    /usr/include/ffmpeg
    /usr/include/libavformat
    /usr/include/ffmpeg/libavformat
    /usr/local/include/libavformat
  )

  find_path(FFMPEG_INCLUDE_DIR2 avcodec.h
    $ENV{FFMPEG_DIR}
    $ENV{FFMPEG_DIR}/ffmpeg
    $ENV{FFMPEG_DIR}/libavcodec
    $ENV{FFMPEG_DIR}/include/libavcodec
    $ENV{FFMPEG_DIR}/include/ffmpeg
    /usr/local/include/ffmpeg
    /usr/include/ffmpeg
    /usr/include/libavcodec
    /usr/include/ffmpeg/libavcodec
    /usr/local/include/libavcodec
  )

  find_path(FFMPEG_INCLUDE_DIR3 avutil.h
    $ENV{FFMPEG_DIR}
    $ENV{FFMPEG_DIR}/ffmpeg
    $ENV{FFMPEG_DIR}/libavutil
    $ENV{FFMPEG_DIR}/include/libavutil
    $ENV{FFMPEG_DIR}/include/ffmpeg
    /usr/local/include/ffmpeg
    /usr/include/ffmpeg
    /usr/include/libavutil
    /usr/include/ffmpeg/libavutil
    /usr/local/include/libavutil
  )

  find_path(FFMPEG_INCLUDE_DIR4 swresample.h
    $ENV{FFMPEG_DIR}
    $ENV{FFMPEG_DIR}/ffmpeg
    $ENV{FFMPEG_DIR}/libswresample
    $ENV{FFMPEG_DIR}/include/libswresample
    $ENV{FFMPEG_DIR}/include/ffmpeg
    /usr/local/include/ffmpeg
    /usr/include/ffmpeg
    /usr/include/libswresample
    /usr/include/ffmpeg/libswresample
    /usr/local/include/libswresample
  )

  find_path(FFMPEG_INCLUDE_DIR5 swscale.h
    $ENV{FFMPEG_DIR}
    $ENV{FFMPEG_DIR}/ffmpeg
    $ENV{FFMPEG_DIR}/libswscale
    $ENV{FFMPEG_DIR}/include/libswscale
    $ENV{FFMPEG_DIR}/include/ffmpeg
    /usr/local/include/ffmpeg
    /usr/include/ffmpeg
    /usr/include/libswscale
    /usr/include/ffmpeg/libswscale
    /usr/local/include/libswscale
  )
endif()

if(FFMPEG_INCLUDE_DIR1 AND
   FFMPEG_INCLUDE_DIR2 AND
   FFMPEG_INCLUDE_DIR3 AND
   FFMPEG_INCLUDE_DIR4 AND
   FFMPEG_INCLUDE_DIR5
)
  set(FFMPEG_INCLUDE_DIR ${FFMPEG_INCLUDE_DIR1}
                         ${FFMPEG_INCLUDE_DIR2}
                         ${FFMPEG_INCLUDE_DIR3}
                         ${FFMPEG_INCLUDE_DIR4}
                         ${FFMPEG_INCLUDE_DIR5}
  )
endif()

if(${PLATFORM} MATCHES "Debian")
  find_library(FFMPEG_avformat_LIBRARY avformat-ffmpeg)
  find_library(FFMPEG_avcodec_LIBRARY avcodec-ffmpeg)
  find_library(FFMPEG_avutil_LIBRARY avutil-ffmpeg)
  find_library(FFMPEG_swresample_LIBRARY swresample-ffmpeg)
  find_library(FFMPEG_swscale_LIBRARY swscale-ffmpeg)
else()
  find_library(FFMPEG_avformat_LIBRARY avformat
    $ENV{FFMPEG_DIR}
    $ENV{FFMPEG_DIR}/lib
    $ENV{FFMPEG_DIR}/libavformat
    /usr/local/lib
    /usr/lib
  )

  find_library(FFMPEG_avcodec_LIBRARY avcodec
    $ENV{FFMPEG_DIR}
    $ENV{FFMPEG_DIR}/lib
    $ENV{FFMPEG_DIR}/libavcodec
    /usr/local/lib
    /usr/lib
  )

  find_library(FFMPEG_avutil_LIBRARY avutil
    $ENV{FFMPEG_DIR}
    $ENV{FFMPEG_DIR}/lib
    $ENV{FFMPEG_DIR}/libavutil
    /usr/local/lib
    /usr/lib
  )

  find_library(FFMPEG_swresample_LIBRARY swresample
    $ENV{FFMPEG_DIR}
    $ENV{FFMPEG_DIR}/lib
    $ENV{FFMPEG_DIR}/libswresample
    /usr/local/lib
    /usr/lib
  )

  find_library(FFMPEG_swscale_LIBRARY swscale
    $ENV{FFMPEG_DIR}
    $ENV{FFMPEG_DIR}/lib
    $ENV{FFMPEG_DIR}/libswscale
    /usr/local/lib
    /usr/lib
  )
endif()

if(FFMPEG_INCLUDE_DIR)
  if(FFMPEG_avformat_LIBRARY AND
     FFMPEG_avcodec_LIBRARY AND
     FFMPEG_avutil_LIBRARY AND
     FFMPEG_swresample_LIBRARY AND
     FFMPEG_swscale_LIBRARY
  )
    set(FFMPEG_FOUND "YES")
    if(${PLATFORM} MATCHES "Debian")
      set(FFMPEG_LIBRARIES avformat-ffmpeg
                           avcodec-ffmpeg
                           avutil-ffmpeg
                           swresample-ffmpeg
                           swscale-ffmpeg
      )
    else()
      set(FFMPEG_LIBRARIES ${FFMPEG_avformat_LIBRARY}
                           ${FFMPEG_avcodec_LIBRARY}
                           ${FFMPEG_avutil_LIBRARY}
                           ${FFMPEG_swresample_LIBRARY}
                           ${FFMPEG_swscale_LIBRARY}
      )
    endif()
  endif()
endif()

unset (PLATFORM)