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
   9 if (NOT FFmpeg_SEARCHED)
  10     include(CheckLibraryExists)
  11
  12     set(FFmpeg_SEARCHED TRUE CACHE INTERNAL "")
  13     set(FFmpeg_FOUND FALSE CACHE INTERNAL "")
  14
  15     pkg_check_modules(FFmpeg libffmpeg)
  16
  17     if (NOT FFmpeg_FOUND)
  18         set(FFmpeg_LIBRARIES "")
  19         foreach (library ffmpeg avcodec avformat avutil postproc swscale)
  20             find_library( ${library}_LIBRARY ${library} )
  21             if (${library}_LIBRARY)
  22               pkg_check_modules(${library}_LIBRARY lib${library})
  23               set(FFmpeg_CFLAGS "${FFmpeg_CFLAGS} ${${library}_LIBRARY_CFLAGS}")
  24               set(FFmpeg_LIBRARIES "${library};${FFmpeg_LIBRARIES}")
  25               set(FFmpeg_FOUND TRUE CACHE INTERNAL "")
  26             endif (${library}_LIBRARY)
  27         endforeach (library)
  28         foreach (library a52 faac lame z png mp3lame twolame)
  29             find_library( ${library}_LIBRARY ${library} )
  30             if (${library}_LIBRARY)
  31               pkg_check_modules(${library}_LIBRARY lib${library})
  32               set(FFmpeg_CFLAGS "${FFmpeg_CFLAGS} ${${library}_LIBRARY_CFLAGS}")
  33               set(FFmpeg_LIBRARIES "${library};${FFmpeg_LIBRARIES}")
  34             endif (${library}_LIBRARY)
  35         endforeach (library)
  36         set(FFmpeg_LIBRARIES "${FFmpeg_LIBRARIES}" CACHE INTERNAL STRING)
  37     endif (NOT FFmpeg_FOUND)
  38
  39     if (FFmpeg_FOUND)
  40       if (NOT FFmpeg_FIND_QUIETLY)
  41         message(STATUS "Found FFmpeg in: ${FFmpeg_LIBRARIES}")
  42       endif (NOT FFmpeg_FIND_QUIETLY)
  43     else (FFmpeg_FOUND)
  44       if (FFmpeg_FIND_REQUIRED)
  45         message(FATAL_ERROR "Could not find the library containing FFmpeg")
  46       endif (FFmpeg_FIND_REQUIRED)
  47     endif (FFmpeg_FOUND)
  48
  49     mark_as_advanced(FFmpeg_LIBRARIES)
  50 endif(NOT FFmpeg_SEARCHED)