python - Real time video streaming lag

Question

Am also working on multiple cameras I am able to process different rtsp streams on web page. But there is an issue regarding accumulation of lag. Is there a way to keep up to date with the live streams?

A screenshot of the same is attached for your reference (time highlighted in red)

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Thanks

question from:https://stackoverflow.com/questions/65935988/real-time-video-streaming-lag

Answer 1

This is a nasty little issue with certain ip cameras. It's especially prominent with ubiquiti cameras. The method I use to deal with it is to have a separate thread (use multiprocess for python) pulling frames faster than the camera framerate and pushing it in to a circular buffer. Then whenever you need a new frame, you pull from the buffer head, not the camera.