On Mon, Jan 04, 2010 at 06:57:16PM +0100, Reimar D?ffinger wrote: > On Mon, Jan 04, 2010 at 06:53:30PM +0100, Reimar D?ffinger wrote: > > > I hope this has something to do with libmpeg2 or an option > > > (e.g. -lavdopts) which default value was changed during the releases. > > > > Probably -key-fifo-size 2 gives the old behaviour (if you knew where to > > look it would would have been in the manual :-) ) > > However now that I try it there seems to be another, rather strange, issue. > > -demuxer lavf seems to avoid it for me. > > Actually it seems your guess was even better, for MPEG files -vc mpeg12 > works far better (compared to not at all without) for seeking with the > default demuxer. Fixed for at least some cases with r30217 even though I am not sure I know 100% why. I currently suspect that this "fix" only works "accidentally" because/if the PC can decode faster than your key repeat rate...