[FFmpeg-devel] Fw: [foms] Paper submissions to LCA

Måns Rullgård mans
Fri Jul 17 09:36:11 CEST 2009


Jason Garrett-Glaser <darkshikari at gmail.com> writes:

>>> Interleave entropy decoding and MC/idct.  This means, for example,
>>> decoding an MV, and immediately performing motion compensation with
>>> that MV.
>>
>> This is unfortunately the opposite of what is needed to do part of the
>> decoding on a DSP or other coprocessor.
>
> We have CONFIG_SMALL for that.  This isn't an issue.

I wasn't talking about code size.  To share work with a DSP, you have
to parse lots of syntax elements and hand them over to the DSP in
bulk.  Passing messages to the DSP for every macroblock would totally
kill performance.

-- 
M?ns Rullg?rd
mans at mansr.com



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