0 CV_CAP_PROP_POS_MSEC Current position of the video file in milliseconds or video capture timestamp. 视频文件的当前位置（播放）以毫秒为单位 1 CV_CAP_PROP_POS_FRAMES 0-based index of the frame to be decoded/captured next. 基于以0开始的被捕获或解码的帧索引 2 CV_CAP_PROP_POS_AVI_RATIO Relative position of the video file: 0 - start of the film, 1 - end of the film. 视频文件的相对位置（播放）：0=电影开始，1=影片的结尾。 3 CV_CAP_PROP_FRAME_WIDTH 视频帧宽度 4 CV_CAP_PROP_FRAME_HEIGHT 视频帧高度 5 CV_CAP_PROP_FPS 视频帧速率 6 CV_CAP_PROP_FOURCC 4-character code of codec. 编解码的4字-字符代码 7 CV_CAP_PROP_FRAME_COUNT 视频总帧数 8 CV_CAP_PROP_FORMAT Format of the Mat objects returned by retrieve() . 返回对象的格式 9 CV_CAP_PROP_MODE Backend-specific value indicating the current capture mode. 返回后端特定的值，该值指示当前捕获模式 10 CV_CAP_PROP_BRIGHTNESS Brightness of the image (only for cameras). 图像的亮度(仅适用于照相机) 11 CV_CAP_PROP_CONTRAST Contrast of the image (only for cameras). 图像的对比度(仅适用于照相机) 12 CV_CAP_PROP_SATURATION Saturation of the image (only for cameras). 图像的饱和度(仅适用于照相机) 13 CV_CAP_PROP_HUE Hue of the image (only for cameras). 色调图像(仅适用于照相机) 14 CV_CAP_PROP_GAIN Gain of the image (only for cameras). 图像增益(仅适用于照相机)（Gain在摄影中表示白平衡提升） 15 CV_CAP_PROP_EXPOSURE Exposure (only for cameras). 曝光(仅适用于照相机) 16 CV_CAP_PROP_CONVERT_RGB Boolean flags indicating whether images should be converted to RGB. 指示是否应将图像转换为RGB布尔标志 17 CV_CAP_PROP_WHITE_BALANCE_U The U value of the whitebalance setting (note: only supported by DC1394 v 2.x backend currently) 18 CV_CAP_PROP_WHITE_BALANCE_V The V value of the whitebalance setting (note: only supported by DC1394 v 2.x backend currently) 立体摄像机的矫正标注（目前只有DC1394 v.2.x后端支持这个功能） 19 CV_CAP_PROP_RECTIFICATION Rectification flag for stereo cameras (note: only supported by DC1394 v 2.x backend currently) 20 CV_CAP_PROP_ISO_SPEED The ISO speed of the camera (note: only supported by DC1394 v 2.x backend currently) 21 CV_CAP_PROP_BUFFERSIZE Amount of frames stored in internal buffer memory (note: only supported by DC1394 v 2.x backend currently)
