message: videoio: realsense - add cvtColor as the pixel-format is only a hint
diff: @@ -85,6 +85,9 @@ bool VideoCapture_LibRealsense::retrieveFrame(int outputType, cv::OutputArray fr
  // we copy the data straight away, so const_cast should be fine
  void* data = const_cast<void*>(_frame.get_data());
  Mat(_frame.get_height(), _frame.get_width(), type, data, _frame.get_stride_in_bytes()).copyTo(frame);
  +
  + if(_frame.get_profile().format() == RS2_FORMAT_RGB8)
  + cvtColor(frame, frame, COLOR_RGB2BGR);
  }
  catch (const rs2::error&)
  {
  