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Old 17th June 2019, 14:37   #1741  |  Link
bstrobl
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First SoC launched by Realtek: https://www.realtek.com/en/press-roo...-cas-functions
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Old 17th June 2019, 14:40   #1742  |  Link
EwoutH
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Press release: https://www.realtek.com/en/press-room/news-releases/item/realtek-launches-worldwide-first-4k-uhd-set-top-box-soc-rtd1311-integrating-av1-video-decoder-and-multiple-cas-functions
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Old 17th June 2019, 20:07   #1743  |  Link
soresu
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Faster than I expected for a hardware ASIC release, with HDMI 2.1 support no less - though HDMI 2.1 is obviously overkill for 4K60p video, the release doesn't say anything about higher than 4K support.
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Old 17th June 2019, 21:04   #1744  |  Link
hajj_3
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nice to see but realtek charges a lot more for their chips than amlogic, allwinner, huawei, mediatek and rockchip which is why cheap android tv boxes don't use them.
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Old 17th June 2019, 22:25   #1745  |  Link
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https://www.reddit.com/r/AV1/comment...han_x264_x265/

Everybody compares AV1 to VP9 on 8 bits for both.

What about VP9 10 bits?
It makes also sense to compare AV1 8 bits vs VP9 10 bits.

VP9 10 bits has several advantages over AV1 8 bits at this moment:
  • Significantly faster encoding
  • Significantly faster decoding
  • Hardware support
  • Should has ~10-20% better compression than VP9 8 bits (not that far from AV1’s 25-30%)

It makes sense to employ VP9 10 bits at least for 2-3 years more until a final jump to AV1. It will give additional time for AV1 to develop better encoders and decoders.

Well, Google and Netflix already use VP9 10 bits for their HDR content but SDR could benefit as well.

Plus VP9 benefits a LOT from 10 bits because it suffers from blocking and banding not less than H.264 as it indicates here https://sonnati.wordpress.com/2016/0...ntion-part-ii/

Last edited by IgorC; 17th June 2019 at 22:28.
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Old Yesterday, 09:24   #1746  |  Link
soresu
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Always interesting to hear about AI/ML tidbits related to video encoding, the Visionular speaker at the Big Apple Video conference (26th June) has this in her summary:

"Finally, we will introduce certain AI+codec techniques that could provide certain novel coding tools leveraging the use of deep learning for the next AOM standard, possibly AV2."
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Old Yesterday, 18:33   #1747  |  Link
dapperdan
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I think this paper covers one such proposal for AV2 and has the speaker as an author:

https://link.springer.com/chapter/10...319-94361-9_18

Couldn't quickly find a public version, but the citations took me to this which I think was another technique discussed:

https://arxiv.org/pdf/1804.09291

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Old Today, 08:56   #1748  |  Link
foxyshadis
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Reminds me of NNEDI, both in that there can be surprising visual gains and in that it will require enormous CPU & GPU power just to decode.

But isn't discussion of AV2 getting way off topic? We have an entire forum for discussing new and potential codecs, this thread is just getting more polluted and useless every week.
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Old Today, 19:40   #1749  |  Link
benwaggoner
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Quote:
Originally Posted by IgorC View Post
https://www.reddit.com/r/AV1/comment...han_x264_x265/

Everybody compares AV1 to VP9 on 8 bits for both.

What about VP9 10 bits?
It makes also sense to compare AV1 8 bits vs VP9 10 bits.
Why not compare AV1 10-bit vs. VP9 10-bit?

The barriers to using 10-bit seem pretty similar in both cases, namely longer encoding time, lack of 10-bit sources or processing chains (getting much better), reliance on good dithering in display system, somewhat slower SW decode, and rarer HW decode support.

AFAIK, no one is planning any 8-bit only AV1 decoders, so 10-bit might be able to be used by default more often with AV1 if HW decoders become dominant. SW decoders need more optimization for 10-bit to make it competitive for higher resolutions.

I expect 10-bit to become generally mainstream as it is required for HDR, and we're near or past the tipping point where the majority of new video consumption devices support at least HDR-10.
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