c++ - Get device ID from current capture -


i'm using opencv video frames. how camera capture initialised:

videocapture capture; capture.open(0);  //read camera #0

if wanted switch different camera, i'd this:

capture.release();  //release stream capture.open(1);    //open different stream

imagine had few cameras connected computer , wanted loop through them using 2 buttons previous camera , next camera. without saving current camera id variable, need actual value videocapture object.
there way how find out id of used device?

pseudocode:

int current = capture.deviceid; capture.release(); capture.open(current++);

so there way how find out id of used device?

there's no way because class videocapture doesn't contain such variable or method. contains protected pointer cvcapture (take @ highgui.h) try play don't have access field.


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