[FFmpeg-devel] H.264: Partially inline CABAC residual decode

Jason Garrett-Glaser jason
Sat Jan 15 00:13:42 CET 2011


On Fri, Jan 14, 2011 at 3:13 PM, Jason Garrett-Glaser <jason at x264.com> wrote:
> This is a port of a technique originally used in x264 (and later
> ported to ffvp8). ?It inlines the CBF portion of residual coding,
> which improves performance by allowing more constant propagation and
> because a huge number of residual blocks terminate on the CBF check.
>
> Timing for CABAC mb decode:
> Before: 6861 +/- 15 clocks
> After: 6779 +/- 9 clocks
>
> Jason
>

Forgot the patch...

Jason
-------------- next part --------------
A non-text attachment was scrubbed...
Name: cabac_partially_inline.diff
Type: text/x-patch
Size: 3491 bytes
Desc: not available
URL: <http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/attachments/20110114/9a6e6eca/attachment.bin>



More information about the ffmpeg-devel mailing list