[MPlayer-users] Corruption after using -ovc copy

[Nico Sabbi]

On Thursday 13 March 2008 11:31:04 Reimar Döffinger wrote:
> On Thu, Mar 13, 2008 at 11:24:44AM +0100, Nico Sabbi wrote:
> > On Thursday 13 March 2008 11:20:08 Reimar Döffinger wrote:
> > > You will have to use -mc 0 -noskip or something like that,
> > > without those it's no wonder it looks like some reference
> > > frames are missing, because they probably are...
> >
> > mencoder should at the very least avoid skipping keyframes
> > (IIRC where demuxer->video->flags & 1)
>
> What makes you think this will be set correctly with -ovc copy?
> Also that still seems very unlikely to me to be what most people
> want when they use -ovc copy, so what is really the point of adding
> such a hack?

it wouldn't fix -ovc  copy but it would permit a quicker recovery
during playback (think of encodes with 600 frames GOPS that
are default in x264)

> And lastly, such a change would break the only case where -ovc copy
> _can_ work perfectly, namely all-keyframe video (e.g. MJPEG).

yes