[x264-devel] Re: Sparc optimization (8x8 SAD) & test sequences

[Tuukka Toivonen]

On Sat, 16 Jul 2005, Phil Jensen wrote:

> I've finished a first stab at an 8x8 SAD using VIS for a significant speedup on
> UltraSPARC hardware (31% overall, ~400% improvement within the SAD).  I was
> wondering if someone could kindly send me a link to a sample raw file I could
> use when testing the CLI x264 encoder.  As soon as I can verify all is well,

What about
   dd if=/dev/urandom of=random-176x144.yuv bs=38016 count=100
Encode it with and without VIS and see if the results are identical.
Actually you need to modify the original x264 as well (just add a comment 
somewhere) otherwise the bitstream headers differ by one byte.

Solaris probably doesn't have /dev/urandom, but I think you got the
idea: just generate random data and cmp the results.

Here are some real test videos:
http://media.xiph.org/video/derf/
but you need to convert the y4m files to yuv with
mencoder or something. Or Google for the yuv versions.

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