Setting a frame rate doesn’t always work like you expect. It depends on two things: What your camera is capable of outputting. Whether the current capture backend you’re using supports changing frame rates. So point (1). Your camera will have a list of formats which it is capable of delivering to a capture device (e.g. … Read more
You should get a badge for such a long well though out question. 😉 In answer to your primary question, VNC uses the RFB protocol which is a remote frame buffer protocol (thus the acronym) not a streaming video protocol. The VNC client sends a FrameBufferUpdateRequest message to the server which contains a viewport region … Read more
You want cv2.CAP_PROP_POS_MSEC. See all the different capture properties here. Edit: Actually, as Dan MaÅ¡ek pointed out to me, when you grab that property, it looks like OpenCV is exactly doing that calculation (at least assuming you’re using FFMPEG): case CV_FFMPEG_CAP_PROP_POS_MSEC: return 1000.0*(double)frame_number/get_fps(); So it seems you’re always going to rely on a constant frame … Read more
With a newer OpenCV version (I use 3.1.0) it works like this: import cv2 cap = cv2.VideoCapture(“video.mp4”) length = int(cap.get(cv2.CAP_PROP_FRAME_COUNT)) print( length ) And similar for other video properties cv2.CAP_PROP_*