3 ms·

Also software decoding of AV1 is already fast enough, so specially what game streaming people need is the AV1 hardware encoder https://openbenchmarking.org/test

Also software decoding of AV1 is already fast enough, so specially what game streaming people need is the AV1 hardware encoder https://openbenchmarking.org/test/pts/dav1d#results https://openbenchmarking.org/test/pts/dav1d#results

baybal2 5y ago
> 20% over h265 On what codec settings?. IMO h256 and AV1 are extremely close depending on individual, and still experimental, codec tweaks. MP3 coding was near garbage at 128kbps, but over the years the codec community managed to make 128kbps significantly better audibly without changing the format Next gen h256 coders will likely copy whatever non-bitstream optimisation they can from AV1 coders, and they will be a near match again.
- phkahler 5y ago
  >> Next gen h256 coders will likely copy whatever non-bitstream optimisation they can from AV1 coders, and they will be a near match again. Not only is that speculation, but more importantly they will not be copying the licensing terms of AV1.
- joshcryer 5y ago
  AV1 beats h265 by some 10-15% and it's still improving. h265 has had plenty of time to mature. I don't think there's much headroom for h265 and anyway the JVET/MPEG has moved on to VVC, which beats AV1 by some 25-29% and it is still improving. They know they'll lose the short term war and are looking longer term. AV1 was supposed to be "on par" with h265 but has jumped ahead by a bit and will likely improve for quite awhile until AV2 is worked on. Will it reach VVC levels? Probably not. But it will certainly be better than h265/HVEC. Source for size comparisons: https://www.cambridge.org/core/journals/apsipa-transactions-on-signal-and-information-processing/article/compression-efficiency-analysis-of-av1-vvc-and-hevc-for-random-access-applications/D2345DDC3750055AB0AA3D24FCF743BE https://www.cambridge.org/core/journals/apsipa-transactions-...
  - kingcharles 5y ago
    VVC honestly astounds me. It makes me wonder how far we can go with video compression. I look back at MPEG-1 Video CDs and it is unbelievable how incredible a video image you could now produce in the same 600Mb storage.
karmakaze 5y ago
> While AMD and Nvidia both offer AV1 decoding with their newest GPUs, neither have support for AV1 encoding. So this announcement is specifically about encoding.

baybal2 5y ago

> 20% over h265 On what codec settings?. IMO h256 and AV1 are extremely close depending on individual, and still experimental, codec tweaks. MP3 coding was near garbage at 128kbps, but over the years the codec community managed to make 128kbps significantly better audibly without changing the format Next gen h256 coders will likely copy whatever non-bitstream optimisation they can from AV1 coders, and they will be a near match again.

phkahler 5y ago
>> Next gen h256 coders will likely copy whatever non-bitstream optimisation they can from AV1 coders, and they will be a near match again. Not only is that speculation, but more importantly they will not be copying the licensing terms of AV1.
joshcryer 5y ago
AV1 beats h265 by some 10-15% and it's still improving. h265 has had plenty of time to mature. I don't think there's much headroom for h265 and anyway the JVET/MPEG has moved on to VVC, which beats AV1 by some 25-29% and it is still improving. They know they'll lose the short term war and are looking longer term. AV1 was supposed to be "on par" with h265 but has jumped ahead by a bit and will likely improve for quite awhile until AV2 is worked on. Will it reach VVC levels? Probably not. But it will certainly be better than h265/HVEC. Source for size comparisons: https://www.cambridge.org/core/journals/apsipa-transactions-on-signal-and-information-processing/article/compression-efficiency-analysis-of-av1-vvc-and-hevc-for-random-access-applications/D2345DDC3750055AB0AA3D24FCF743BE https://www.cambridge.org/core/journals/apsipa-transactions-...
- kingcharles 5y ago
  VVC honestly astounds me. It makes me wonder how far we can go with video compression. I look back at MPEG-1 Video CDs and it is unbelievable how incredible a video image you could now produce in the same 600Mb storage.

karmakaze 5y ago

> While AMD and Nvidia both offer AV1 decoding with their newest GPUs, neither have support for AV1 encoding. So this announcement is specifically about encoding.