Intel's Open-Source VP9 Video Encoder Just Scored A Massive ~3x Performance Boost

[smitty3268]

Does it trade quality off or not?

Just enabling the AVX2 codepath presumably doesn't. But whether the SVT encoder in general does versus other encoders is a good question.

[microcode]

SSIM/VMF normalized encodes would be an interesting thing to do, not sure exactly how that could be accomplished, worth talking to the SVT folks about it.

[Michael]

Maybe you can compare the output images between versions, as done in FifoCI. Here is an example:

It's somewhat similar to how PTS is capable of. Here is a 10 year old example - https://www.phoronix.com/scan.php?pa...nvik_iqc&num=1 - I did have some better examples of outlining the changed pixels but can't seem to find that example article at the moment. Those capabilities are in place but a matter of reliably being able to query the same frame/output, etc.

[tildearrow]

Hadn't noticed any quality issues on past AVX_512 encodes so wouldn't imagine so, but will try to work on a test for that in the next comparison (PTS does support doing image quality comparisons as long as the 'result' can be expressed consistently for parsing).

Maybe you can compare the output images between versions, as done in FifoCI. Here is an example:

[Michael]

Does it trade quality off or not?

Hadn't noticed any quality issues on past AVX_512 encodes so wouldn't imagine so, but will try to work on a test for that in the next comparison (PTS does support doing image quality comparisons as long as the 'result' can be expressed consistently for parsing).

[tildearrow]

Does it trade quality off or not?

[phoronix]

Phoronix: Intel's Open-Source VP9 Video Encoder Just Scored A Massive ~3x Performance Boost

Intel's open-source team continues showing the power of optimizations... Or rather in this case, a three fold performance improvement due to previously limiting an AVX-512 routine that also works on AVX-2 CPUs. SVT-VP9 is now a lot faster on AVX2 CPUs from both Intel and AMD...

http://www.phoronix.com/scan.php?page=news_item&px=Intel-SVT-VP9-3x-AVX2-Boost