OpenCV Constants.CaptureProperty

Question

嗨我使用OpenCV Java并遇到一些问题.

我打开视频文件,尝试获取像FPS这样的属性.和别的:

• CV_CAP_PROP_POS_MSEC
• CV_CAP_PROP_FRAME_COUNT

所以首先我打开这样的视频:

VideoCapture vC = new VideoCapture(url2);

接下来我的功能有问题

vC.get(int i)

在OpenCV C++中看起来像

vC.get(CV_CAP_PROP_FPS);

在Java中,我找到了这个常量？在HighGui中我找不到它们.只有我发现的是OpenCV的另一个库,这是常量http://siggiorn.com/wp-content/uploads/libraries/opencv-java/docs/sj/opencv/Constants.CaptureProperty.html.但是我在OpenCV Java中找到它们.无论如何我必须使用vC.get()函数？也许一些工作的例子？

Answer 1

有关于此问题的错误报告.

在修复之前,我建议你在C++源代码中找到这些常量,并自己定义它们.

编辑:

我自己很好奇.你可以在文件modules/highgui/include/opencv2/highgui.hpp中找到它们.它们是:

   CAP_PROP_POS_MSEC       =0,
   CAP_PROP_POS_FRAMES     =1,
   CAP_PROP_POS_AVI_RATIO  =2,
   CAP_PROP_FRAME_WIDTH    =3,
   CAP_PROP_FRAME_HEIGHT   =4,
   CAP_PROP_FPS            =5,
   CAP_PROP_FOURCC         =6,
   CAP_PROP_FRAME_COUNT    =7,
   CAP_PROP_FORMAT         =8,
   CAP_PROP_MODE           =9,
   CAP_PROP_BRIGHTNESS    =10,
   CAP_PROP_CONTRAST      =11,
   CAP_PROP_SATURATION    =12,
   CAP_PROP_HUE           =13,
   CAP_PROP_GAIN          =14,
   CAP_PROP_EXPOSURE      =15,
   CAP_PROP_CONVERT_RGB   =16,
   CAP_PROP_WHITE_BALANCE_BLUE_U =17,
   CAP_PROP_RECTIFICATION =18,
   CAP_PROP_MONOCROME     =19,
   CAP_PROP_SHARPNESS     =20,
   CAP_PROP_AUTO_EXPOSURE =21, // DC1394: exposure control done by camera, user can adjust refernce level using this feature
   CAP_PROP_GAMMA         =22,
   CAP_PROP_TEMPERATURE   =23,
   CAP_PROP_TRIGGER       =24,
   CAP_PROP_TRIGGER_DELAY =25,
   CAP_PROP_WHITE_BALANCE_RED_V =26,
   CAP_PROP_ZOOM          =27,
   CAP_PROP_FOCUS         =28,
   CAP_PROP_GUID          =29,
   CAP_PROP_ISO_SPEED     =30,
   CAP_PROP_BACKLIGHT     =32,
   CAP_PROP_PAN           =33,
   CAP_PROP_TILT          =34,
   CAP_PROP_ROLL          =35,
   CAP_PROP_IRIS          =36,
   CAP_PROP_SETTINGS      =37