[FFmpeg-devel] [RFC] Factorize some code from CAVS and H.264

Michael Niedermayer michaelni
Thu Jan 10 12:12:51 CET 2008

On Wed, Jan 09, 2008 at 11:48:20PM +0100, Christophe GISQUET wrote:
> Hello,
> I noticed that CAVS (cavsdsp_mmx.c) uses the following macros from H.264:
> - TRANSPOSE4 (dsputil_mmx.c, appeared in r1365; last changed in r8939)
> - SUMSUB_BA (idct_mmx.c r4329, then h264dsp_mmx.c r4338; never changed)
> In addition, such macros can be used in other dsp stuff (iDCT stuff 
> mostly), so factorizing makes sense to me. TRANSPOSE8 is another candidate.
> Now, there is a plurality of file origins, the macros had little change 
> throughout their history, so I'm inclined to thing it's not worth copying 
> dsputil_mmx.c (both file and history) to a new file and work 
>> from it.
> Then, name to pick. Considering all those macros come from H.264 code, and 
> are only macros, I would name it h264dsp_mmx.h.

no, this code is not h264 specific

Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Everything should be made as simple as possible, but not simpler.
-- Albert Einstein
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