[MPlayer-users] -ss option time descrepancy

D Richard Felker III dalias at aerifal.cx
Tue Sep 14 16:29:24 CEST 2004


On Tue, Sep 14, 2004 at 10:47:58AM +0200, Michel Bardiaux wrote:
> D Richard Felker III wrote:
> 
> >On Mon, Sep 13, 2004 at 01:39:58PM +0200, Michel Bardiaux wrote:
> >
> >>D Richard Felker III wrote:
> >>
> >>[snip]
> >>
> >>
> >>>
> >>>this will not help. -ss 00:10:00 is exactly the same as -ss 600. the
> >>>problem is that mplayer's seeking sucks, but you _cannot_ do correct
> >>>seeking in an mpeg file without reading the _entire_ thing from the
> >>>start up to the point you want to seek to...
> >>
> >>If one assumes an MPEG-PS format with correct timestamps, correct 
> >>seeking to a particulat frame using repeated bisection then a little bit 
> >>of MxV parsing should work, no? Of course the problem is then to 
> >>*decode* non-key frames, especially when faced with variable GOP size or 
> >>open GOPs...
> >>
> >>So ITYM 'seeking in a pathological MPEG'?
> >
> >
> >if you call 75% of all dvd's "pathological", then yes...
> 
> I had no idea the situation was so bad. 75% of all DVDs are not 
> conforming to standards!?

no, it's totally conformant. that's the problem...

rich




More information about the MPlayer-users mailing list