[Ffmpeg-devel] Re: [RFC] mpeg2 422 encoding.

Baptiste COUDURIER baptiste.coudurier
Sun May 7 20:12:58 CEST 2006


Michael Niedermayer wrote:
> [...]
> no, there are no motion vectors for chroma the chroma vectors are the same
> as the luma vactors (ignoring scaling & rounding ...)
> and i dont think that theres a relation between -me xyz, the number of b
> frames and the (-mbd bits) bug its probably just a "coincidence"
> you should rather look at the mb_decision != 0 specific code, i also
> think that the mbd bits bug isnt critical and could be dealt with after
> 422 encoding support has been added

All right then,

A new patch is attached I only inlined encode_mb, and mpeg1_encode_mb in
mpeg12.c, I left START/STOP TIMER funcs around encode_picture.
Interlaced encoding in 422 works. I removed all encode_mb_hq changes for

I get good performance with that patch. Equal/faster on xeon 2.8ghz. I
wonder why faster sometimes, maybe inlining whole encode_mb did that.
What do you get ?

Baptiste COUDURIER                              GnuPG Key Id: 0x5C1ABAAA
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