[Mplayer-cvslog] CVS: main/DOCS/tech encoding-tips.txt,1.7,1.8

[Michael Niedermayer]

Hi

On Monday 20 September 2004 03:07, Felix Buenemann wrote:
> On Sunday 19 September 2004 21:14, Michael Niedermayer wrote:
> > Hi
> >
> > On Sunday 19 September 2004 17:42, Felix Buenemann wrote:
> > > It would probably be worthwile that mpeg4 standard officially allows no
> > > more than 128 frames between keyframes and it's probably a good idea to
> > > use
> >
> > nonsense, mpeg:
> > "For control of
> > accumulation of IDCT mismatch error, each macroblock shall be intra-
> > coded at least once per every 132 times it is coded in a P-picture
> > without an intervening I-picture."
>
> yeah, I meant 132. Why you write nonsense? You sure know about issues of
> dct/idct accuracy mismatch.

because intra macroblocks != key frames, so mpeg doesnt limit the keyframe 
interval at all, it just requires all pixels to be refreshed regularly


-- 
Michael
level[i]= get_vlc(); i+=get_vlc();  (violates patent EP0266049)
median(mv[y-1][x], mv[y][x-1], mv[y+1][x+1]); (violates patent #5,905,535)
buf[i]= qp - buf[i-1];    (violates patent #?)
for more examples, see http://mplayerhq.hu/~michael/patent.html
stop it, see http://petition.eurolinux.org & http://petition.ffii.org/eubsa/en