git.sesse.net Git - vlc/blob - extras/buildsystem/cmake/include/FindFFmpeg.cmake

   1 # - Find library containing FFmpeg()
   2 # The following variables are set if FFmpeg is found. If FFmpeg is not
   3 # found, FFmpeg_FOUND is set to false.
   4 #  FFmpeg_FOUND     - System has FFmpeg.
   5 #  FFmpeg_LIBRARIES - Link these to use FFmpeg.
   6 #  FFmpeg_CFLAGS - Link these to use FFmpeg.
   7
   8 if (NOT FFmpeg_SEARCHED)
   9     include(CheckLibraryExists)
  10
  11     set(FFmpeg_SEARCHED TRUE CACHE INTERNAL "")
  12     set(FFmpeg_FOUND FALSE CACHE INTERNAL "")
  13
  14     pkg_check_modules(FFmpeg libffmpeg)
  15
  16     if (NOT FFmpeg_FOUND)
  17         set(FFmpeg_LIBRARIES "")
  18         foreach (library ffmpeg avcodec avformat avutil postproc swscale)
  19             find_library( ${library}_LIBRARY ${library} )
  20             if (${library}_LIBRARY)
  21                 pkg_check_modules(${library}_LIBRARY lib${library})
  22                 set(FFmpeg_LIBRARIES "${library};${FFmpeg_LIBRARIES}")
  23
  24                 if (${library}_LIBRARY_CFLAGS)
  25                     set(FFmpeg_CFLAGS ${FFmpeg_CFLAGS} ${${library}_LIBRARY_CFLAGS})
  26                 endif (${library}_LIBRARY_CFLAGS)
  27                 set(FFmpeg_FOUND TRUE CACHE INTERNAL "")
  28             endif (${library}_LIBRARY)
  29         endforeach (library)
  30         foreach (library a52 faac lame z png mp3lame twolame)
  31             find_library( ${library}_LIBRARY ${library} )
  32             if (${library}_LIBRARY)
  33                 pkg_check_modules(${library}_LIBRARY lib${library})
  34                 set(FFmpeg_LIBRARIES "${library};${FFmpeg_LIBRARIES}")
  35
  36                 if (${library}_LIBRARY_CFLAGS)
  37                     set(FFmpeg_CFLAGS ${FFmpeg_CFLAGS} ${${library}_LIBRARY_CFLAGS})
  38                 endif (${library}_LIBRARY_CFLAGS)
  39             endif (${library}_LIBRARY)
  40         endforeach (library)
  41         set(FFmpeg_LIBRARIES "${FFmpeg_LIBRARIES}" CACHE INTERNAL STRING)
  42     endif (NOT FFmpeg_FOUND)
  43
  44     if (FFmpeg_FOUND)
  45         if (NOT FFmpeg_FIND_QUIETLY)
  46             message(STATUS "Found FFmpeg in: ${FFmpeg_LIBRARIES}")
  47         endif (NOT FFmpeg_FIND_QUIETLY)
  48     else (FFmpeg_FOUND)
  49         if (FFmpeg_FIND_REQUIRED)
  50             message(FATAL_ERROR "Could not find the library containing FFmpeg")
  51         endif (FFmpeg_FIND_REQUIRED)
  52     endif (FFmpeg_FOUND)
  53
  54     mark_as_advanced(FFmpeg_LIBRARIES)
  55 endif(NOT FFmpeg_SEARCHED)