[Mplayer-dev-eng] libavcodec speed

Christoph Lampert lampert at math.chalmers.se
Fri Aug 3 21:17:12 CEST 2001


On Fri, 3 Aug 2001, Arpi wrote:

> >
> > Is it in current mplayer-libavcoded-CVS ?
> >
>
> just commited changes to mplayer, and idct supporting stuff
> to ffmpeg cvs.
>
> update both, it should work now.

Finally, DLLs and DivX4beta is beaten by the open alternative...
Benchmark on my poor old K6/200, that is sad to be replaced by a
brand new K6-II/300 which is shiped these minutes from AMD Support GB.

(I added a -frames 250 to the benchmark script, so I didn't have to
wait forever...)

File:  samples/matrixbench_lowdivx_wma.avi
VIDEO:  [DIV3]  352x144  24bpp  25.00 fps  518.0 kbps (63.2 kbyte/s)
DShow DLL  : 2.843s 2.893s 2.854s 2.886s
VfW DLL    : 2.846s 2.844s 2.850s 2.859s
DivX4Linux : 2.820s 2.859s 2.802s 2.860s
FFmpeg-old : 3.272s 3.263s 3.316s 3.244s
FFmpeg-new : 2.721s 2.666s 2.683s 2.683s

File:  samples/matrixbench_highdivx_ac3.avi
VIDEO:  [DIV3]  720x576  24bpp  25.00 fps  1655.8 kbps (202.1 kbyte/s)
DShow DLL  : 13.967s 13.477s 13.592s 13.536s
VfW DLL    : 13.307s 13.326s 13.351s 13.337s
DivX4Linux : 14.873s 14.868s 14.893s 14.790s
FFmpeg-old : 19.257s 19.246s 19.294s 19.267s
FFmpeg-new : 13.946s 13.885s 13.930s 13.892s

It seems that difference is even larger on my slow CPU with no extensions
except for MMX than on faster ones. Just what I wanted. :-)
Now I need a "hardframedrop" feature...

gruel


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