Hello everyone, I am using the webcam to do some traking. I noticed some latency during fast motion.
For example, with luvcview, when I do a movement with my hand and stop, I can see my hand on the screen trying to catch up and stops about 1 sec after I actually stopped. In the source code, I saw that Laurent Pinchart uses 4 user buffers. I am pretty sure they are not the main reason of this latency. So, I went through the uvcvideo driver source code and I saw that is is also 5 URBs. If I understood well, URBs are for IRQs. Is there a minimum of URBs to use? Is there a way to not use any user buffer (in the queue->mainqueue)? Or basically, what is the minimale configuration? (2URBs & 2user buffers)? (2URBs & 0user buffers)? (0URBs & 2user buffers)? (1URBs & 1user buffers)? Thank you very much again! Cédric Lescop _______________________________________________ Linux-uvc-devel mailing list [email protected] https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
