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 endif()
  17
  18 # avcodec
  19 find_path(AVCODEC_INCLUDE_DIR libavcodec/avcodec.h PATHS ${AVCODEC_INCLUDE_DIRS})
  20 find_library(AVCODEC_LIBRARY avcodec PATHS ${AVCODEC_LIBRARY_DIRS})
  21
  22 # avutil
  23 find_path(AVUTIL_INCLUDE_DIR libavutil/avutil.h PATHS ${AVUTIL_INCLUDE_DIRS})
  24 find_library(AVUTIL_LIBRARY avutil PATHS ${AVUTIL_LIBRARY_DIRS})
  25
  26 if(AVCODEC_INCLUDE_DIR AND AVCODEC_LIBRARY)
  27         set(AVCODEC_FOUND TRUE)
  28 endif()
  29
  30 if(AVUTIL_INCLUDE_DIR AND AVUTIL_LIBRARY)
  31         set(AVUTIL_FOUND TRUE)
  32 endif()
  33
  34 include(FindPackageHandleStandardArgs)
  35 FIND_PACKAGE_HANDLE_STANDARD_ARGS(FFmpeg DEFAULT_MSG AVUTIL_FOUND AVCODEC_FOUND)
  36
  37 if (AVCODEC_VERSION)
  38         if (${AVCODEC_VERSION} VERSION_LESS ${REQUIRED_AVCODEC_API_VERSION})
  39                 message(FATAL_ERROR "libavcodec version >= ${REQUIRED_AVCODEC_VERSION} (API >= ${REQUIRED_AVCODEC_API_VERSION}) is required")
  40         endif()
  41 else()
  42                 message("Note: To build libavcodec version >= ${REQUIRED_AVCODEC_VERSION} (API >= ${REQUIRED_AVCODEC_API_VERSION}) is required")
  43 endif()
  44
  45 if(FFMPEG_FOUND)
  46         set(FFMPEG_INCLUDE_DIRS ${AVCODEC_INCLUDE_DIR} ${AVUTIL_INCLUDE_DIR})
  47         set(FFMPEG_LIBRARIES ${AVCODEC_LIBRARY} ${AVUTIL_LIBRARY})
  48 endif()
  49
  50 mark_as_advanced(FFMPEG_INCLUDE_DIRS FFMPEG_LIBRARIES)
  51