[Ffmpeg-cvslog] CVS: ffmpeg/libavcodec dsputil.c, 1.123, 1.124 dsputil.h, 1.117, 1.118 h264.c, 1.136, 1.137

Måns Rullgård mru
Fri Jun 17 11:32:08 CEST 2005

Loren Merritt <lorenm at u.washington.edu> writes:

> On Fri, 17 Jun 2005, [iso-8859-1] M?ns Rullg?rd wrote:
>> lorenm at mplayerhq.hu (Loren Merritt CVS) writes:
>>> +    uint16_t (*dequant4_coeff)[16]; // FIXME quant matrices should be per SPS or PPS
>> I was about to start looking into this.  Are you doing the same, or
>> should I continue?
> I won't have time for more lavc development for a while, so if you
> want to start on custom quant matrices, it won't be a duplication of
> effort.

OK.  Have I understood correctly that the dequant[48]_coeff arrays
should be moved to the SPS/PPS, and calculated from the scaling lists?
The custom matrixes are different for intra/inter blocks and
luma/chroma.  Do you have any ideas/opinions on how to best represent

Does anyone have a sample with a custom quant matrix in the PPS?

M?ns Rullg?rd
mru at inprovide.com

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