[Mplayer-cvslog] CVS: main/DOCS/tech mpcf.txt,1.30,1.31

[Michael Niedermayer]

Hi

On Friday 12 September 2003 00:11, Alex Beregszaszi wrote:
> Hi,
>
> > > Imho the variable len b-type is better for the fourcc field.
> > > So you can have 2 (audio) and 4 byte (video) fccs (and later others)
> >
> > agree
>
> so leave it as it is?
yes, exactly

>
> > > 4 bits for stream_class (that means 16 diff. values)
> > > 12 bits for stream_id (that means 4096 diff. values)
> > >
> > > _or_
> > >
> > > 3 bits for class ? (8 diff)
> > > 5 bits for id ? (32 diff)
> > >
> > > That would mean 2 bytes instead the current 4 bytes.
> >
> > ehh?
> > if the value is < 128 then v needs 1 byte, so its 2 bytes for
> > stream_id & stream_class together not 4 ...
>
> Ahh yes, i've interchanged it with get_b, as today we're talking about
> get_b vs get_bi. Btw, I still don't get the idea about stream_class == 0
> for video and == 32 for audio.
me neither, but i probably had some reason for it, anyway feel free to change 
it to 0,1,2,...

-- 
Michael
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