[Libav-user] seek on upd rtsp stream causes frame corruption (smearing); how to avoid or detect?
when you seek on a rtsp stream (with udp transport), it very often
causes a particular type of frame corruption where the image looks
smeared vertically, ie the lower part of the image shows vertical
strips (more precisely I[x,y] = C[x] for all y>y0, where y0 depends on