[MPlayer-users] frame by frame play

[andres restrepo]

it works, thanks!

--- Ville Saari <113762 at vs.iki.fi> wrote:

> On Tue, Oct 12, 2004 at 10:09:46PM +0800, Jason Geng
> wrote:
> 
> > I am also interested in this. Where can I find
> more infomation about
> > this patch?
> 
> I wrote such a patch about half a year ago and I
> also posted it here once
> or twice. You can download it from:
> 
>     http://vs.iki.fi/mplayer/frameforward.patch
> 
> The patch is diffed against 1.0pre4, but I last used
> it on the CVS version
> three weeks ago and it still applied fine, although
> with some offsets.
> 
> It only allows frame-stepping forward. If you hit
> the arrow keys while
> mplayer is paused, it will advance to the next
> frame. Any other key will
> unpause.
> 
> Frame-stepping backwards would be much more
> difficult to implement. This
> patch is just a hack to set mplayer to automatically
> pause again after
> it has played just one frame.
> 
> It may cause audio desync, because some audio
> drivers seem to be unable
> to pause accurately and will actually overshoot some
> fraction of a second.
> Normally the video will be played in fast-forward
> for a brief moment after
> unpause to catch up, but if only one frame is
> played, the video can't
> catch up and the audio advances further and further
> ahead each frame.
> The end result might be tens of seconds of audio
> desync after final
> unpause. Mplayer will compensate, but it looks quite
> funny.
> 
> But this only happens with some audio drivers. My
> Linux box has this
> problem, but my PowerBook does not.
> 
> -- 
>  Ville
> 
> _______________________________________________
> MPlayer-users mailing list
> MPlayer-users at mplayerhq.hu
> http://mplayerhq.hu/mailman/listinfo/mplayer-users
> 



		
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