[x264-devel] VP8 versus x264

[Klaue, Jirka]

>>>> I've compared VP8 with x264, just PSNR and SSIM so far.
>>>> If you are interested:
>>>> <http://www.tkn.tu-berlin.de/research/evalvid/EvalVid/vp8_versus_x264.html>
>>
>>> If you're doing metric comparisons, turn psy opts off in both
>>> encoders.  That means x264, too.
>>>
>>> Use --tune psnr or --tune ssim accordingly.  Note that VP8 by default
>>> is tuned for PSNR.
>>
>> I'll add the results using <http://www.its.bldrdoc.gov/vqm/> soon in the
>> hope that
>> it will be more meaningful than statements like "the picture looks
>> better". It should,
>> since the metrics NTIA used match well to tests with humans.

Finally, I've found time to finish the comparison using a better suited
visual quality metric. The tests show that x264 outperforms VP8 in almost
all cases in terms of visual quality.

Jirka