Hu Chunming / vpt_ascend

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3rdparty/opencv-4.5.4/modules/videoio/cmake/detect_v4l.cmake 474 Bytes
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f4334277   Hu Chunming   提交3rdparty 
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  # --- V4L ---
  if(NOT HAVE_V4L)
    set(CMAKE_REQUIRED_QUIET TRUE) # for check_include_file
    check_include_file(linux/videodev2.h HAVE_CAMV4L2)
    check_include_file(sys/videoio.h HAVE_VIDEOIO)
    if(HAVE_CAMV4L2 OR HAVE_VIDEOIO)
      set(HAVE_V4L TRUE)
      set(defs)
      if(HAVE_CAMV4L2)
        list(APPEND defs "HAVE_CAMV4L2")
      endif()
      if(HAVE_VIDEOIO)
        list(APPEND defs "HAVE_VIDEOIO")
      endif()
      ocv_add_external_target(v4l "" "" "${defs}")
    endif()
  endif()