[FFmpeg-devel] [PATCH] NEON code for basic scalar ops

Kostya kostya.shishkov
Thu Jul 23 05:37:03 CEST 2009

On Tue, Jul 21, 2009 at 03:23:58PM +0100, M?ns Rullg?rd wrote:
> Kostya <kostya.shishkov at gmail.com> writes:
> > While waiting for RTMP patch review, here's a bit of NEON code to speed
> > up int16 array addition/subtraction and scalar product calculation.
> >
> > This about halves decoding time for APE compressed at insane level
> > (so it's only 7 times slower than realtime on my BeagleBoard).
> These functions are far from optimal.

Since I won't be able to work at it for some time I post here version
that is few cycles closer to optimal (but still far away).
> -- 
> M?ns Rullg?rd
-------------- next part --------------
A non-text attachment was scrubbed...
Name: int_neon_v0.patch
Type: text/x-diff
Size: 4874 bytes
Desc: not available
URL: <http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/attachments/20090723/db928bba/attachment.patch>

More information about the ffmpeg-devel mailing list