[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

More information about the ffmpeg-devel mailing list