cmake/FindFFmpeg.cmake

   1 # - Try to find FFmpeg
   2 # Using Pkg-config if available for path
   3 #
   4 #  FFMPEG_FOUND        - all required ffmpeg components found on system
   5 #  FFMPEG_INCLUDE_DIRS  - combined include directories
   6 #  FFMPEG_LIBRARIES    - combined libraries to link
   7
   8 set(REQUIRED_AVCODEC_VERSION 0.8)
   9 set(REQUIRED_AVCODEC_API_VERSION 53.25.0)
  10
  11 include(FindPkgConfig)
  12
  13 if (PKG_CONFIG_FOUND)
  14         pkg_check_modules(AVCODEC libavcodec)
  15         pkg_check_modules(AVUTIL libavutil)
  16         pkg_check_modules(AVRESAMPLE libavresample)
  17         pkg_check_modules(SWRESAMPLE libswresample)
  18 endif(PKG_CONFIG_FOUND)
  19
  20 # avcodec
  21 find_path(AVCODEC_INCLUDE_DIR libavcodec/avcodec.h PATHS ${AVCODEC_INCLUDE_DIRS})
  22 find_library(AVCODEC_LIBRARY avcodec PATHS ${AVCODEC_LIBRARY_DIRS})
  23
  24 # avutil
  25 find_path(AVUTIL_INCLUDE_DIR libavutil/avutil.h PATHS ${AVUTIL_INCLUDE_DIRS})
  26 find_library(AVUTIL_LIBRARY avutil PATHS ${AVUTIL_LIBRARY_DIRS})
  27
  28 # swresample
  29 find_path(SWRESAMPLE_INCLUDE_DIR libswresample/swresample.h PATHS ${SWRESAMPLE_INCLUDE_DIRS})
  30 find_library(SWRESAMPLE_LIBRARY swresample PATHS ${SWRESAMPLE_LIBRARY_DIRS})
  31
  32 # avresample
  33 find_path(AVRESAMPLE_INCLUDE_DIR libavresample/avresample.h PATHS ${AVRESAMPLE_INCLUDE_DIRS})
  34 find_library(AVRESAMPLE_LIBRARY avresample PATHS ${AVRESAMPLE_LIBRARY_DIRS})
  35
  36 if (AVCODEC_INCLUDE_DIR AND AVCODEC_LIBRARY)
  37         set(AVCODEC_FOUND TRUE)
  38 endif(AVCODEC_INCLUDE_DIR AND AVCODEC_LIBRARY)
  39
  40 if (AVUTIL_INCLUDE_DIR AND AVUTIL_LIBRARY)
  41         set(AVUTIL_FOUND TRUE)
  42 endif(AVUTIL_INCLUDE_DIR AND AVUTIL_LIBRARY)
  43
  44 include(FindPackageHandleStandardArgs)
  45 if (SWRESAMPLE_FOUND)
  46         FIND_PACKAGE_HANDLE_STANDARD_ARGS(FFmpeg DEFAULT_MSG AVUTIL_FOUND AVCODEC_FOUND SWRESAMPLE_FOUND)
  47 else()
  48         FIND_PACKAGE_HANDLE_STANDARD_ARGS(FFmpeg DEFAULT_MSG AVUTIL_FOUND AVCODEC_FOUND AVRESAMPLE_FOUND)
  49 endif()
  50
  51 if (AVCODEC_VERSION)
  52         if (${AVCODEC_VERSION} VERSION_LESS ${REQUIRED_AVCODEC_API_VERSION})
  53                 message(FATAL_ERROR
  54                             "libavcodec version >= ${REQUIRED_AVCODEC_VERSION} (API >= ${REQUIRED_AVCODEC_API_VERSION}) is required")
  55         endif()
  56 else(AVCODEC_VERSION)
  57         message("Note: To build libavcodec version >= ${REQUIRED_AVCODEC_VERSION} (API >= ${REQUIRED_AVCODEC_API_VERSION}) is required")
  58 endif(AVCODEC_VERSION)
  59
  60 if (FFMPEG_FOUND)
  61         if (SWRESAMPLE_FOUND)
  62                 set(FFMPEG_INCLUDE_DIRS ${AVCODEC_INCLUDE_DIR} ${AVUTIL_INCLUDE_DIR} ${SWRESAMPLE_INCLUDE_DIR})
  63                 set(FFMPEG_LIBRARIES ${AVCODEC_LIBRARY} ${AVUTIL_LIBRARY} ${SWRESAMPLE_LIBRARY})
  64         elseif (AVRESAMPLE_FOUND)
  65                 set(FFMPEG_INCLUDE_DIRS ${AVCODEC_INCLUDE_DIR} ${AVUTIL_INCLUDE_DIR} ${AVRESAMPLE_INCLUDE_DIR})
  66                 set(FFMPEG_LIBRARIES ${AVCODEC_LIBRARY} ${AVUTIL_LIBRARY} ${AVRESAMPLE_LIBRARY})
  67         endif()
  68 endif(FFMPEG_FOUND)
  69
  70 mark_as_advanced(FFMPEG_INCLUDE_DIRS FFMPEG_LIBRARIES)