Changing capture parameters in runtime

[ramsafin]

Let's consider the code:

...
lirs::V4L2VideoCapture capture("/dev/video0", ...);
if (capture.IsOpened()) {
    capture.StartStreaming();
    // formats, frame, etc. rate are negotiated, buffers are allocated
    capture.Set(lirs::CaptureParams::FPS, 60);   // change the frame
}

In the code above frame rate is being changed during streaming process.
Currently, this change will be ignored. However, it is expected to change streaming frame rate in runtime. See v4l2 Buffer docs for more info on how it should be handled.