[theora-dev] My issues with ogg and directshow...

[illiminable]

I seem to remember initially trying to ignore it, but it didn't work... i
can find a few places where it is being used for something... whether it's
crucial or not... i've got no idea.

if(op->granulepos>-1)
 th->granulepos=op->granulepos;
else{
 if(th->granulepos==-1){
  th->granulepos=0;
 }else{
  if(pbi->FrameType==BASE_FRAME){
   long frames= th->granulepos & ((1<<pbi->keyframe_granule_shift)-1);
   th->granulepos>>=pbi->keyframe_granule_shift;
   th->granulepos+=frames+1;
   th->granulepos<<=pbi->keyframe_granule_shift;
  }else
   th->granulepos++;
 }
}

<p>Though it is entirely possible it just didn't work because i still had other
bugs, that have since been fixed. But it does seem to be used for something.

Zen.
----- Original Message -----
From: "Timothy B. Terriberry" <tterribe at vt.edu>
To: <theora-dev at xiph.org>
Sent: Tuesday, May 11, 2004 11:05 AM
Subject: Re: [theora-dev] My issues with ogg and directshow...

<p>> > Vorbis certainly doesn't ignore the granulepos field - it requires it
for
> > correct operation, so I really hope you aren't throwing it away.
>
> And Theora does ignore it. I know player_example uses it to get the
> presentation time for the decoded frames, but other than that it
> shouldn't be used by the decoding process (since VP3 originally had no
> such thing).
> --- >8 ----
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> Ogg project homepage: http://www.xiph.org/ogg/
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<p>--- >8 ----
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