[MPlayer-dev-eng] [PATCH] twopass xvid encoding of indata with multiple headers

[D Richard Felker III]

On Sun, Dec 05, 2004 at 07:34:43PM +0100, Reimar Döffinger wrote:
> Hi,
> > >When I was trying to encode my "Finding Nemo" dvd with mencoder and two
> > >pass xvid encoding the the actual bitrate of the resulting file was way
> > >off.
> > >
> > >I tracked it down to the fact that when decoding the mpeg2 stream from
> > >the dvd it encounters multiple "header" segments in the datastream (I'm
> > >unfamiliar with the correct terminology but I hope you get the idea). 
> > >When mpeg2_parse() in libmpcodecs/vd_libmpeg2.c:decode() returns
> > >STATE_SEQUENCE it triggers a call to xvid_encore() with second argument
> > 
> > is it really necessary that vd_libmpeg2.c re-init libvo for every 
> > STATE_SEQUENCE?
> 
> >From what I can tell it actually only makes sense when some of the
> parameters (width, height, fps) have changed...

agree. actually only width, height. fps change is irrelevant to mplayer.

rich