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Netflix and Intel to Deploy AV1 CODEC For Content Streaming

Discussion in 'Frontpage news' started by Hilbert Hagedoorn, Apr 8, 2019.

  1. Hilbert Hagedoorn

    Hilbert Hagedoorn Don Vito Corleone Staff Member

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  2. MonstroMart

    MonstroMart Master Guru

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    Good job Intel and Intel!
     
  3. Astyanax

    Astyanax Ancient Guru

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    won't be any gpu's able to decode this in a while, and its hard on cpu's.
     
  4. Fox2232

    Fox2232 Ancient Guru

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    Decode is never really hard.
     
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  5. Clawedge

    Clawedge Ancient Guru

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    What really bugs me is the fragmentation. VVC will be out late next year.
     
  6. drac

    drac Ancient Guru

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    Yep solid work I’d say.
     
  7. Astyanax

    Astyanax Ancient Guru

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    spoken by someone who really doesn't have a clue lol.

    last i saw measurements done, this codec was only capable of single threaded decoding and that limits your device coverage to the top end parts with high single core ipc.

    https://www.phoronix.com/scan.php?page=news_item&px=SVT-AV1-Speed-Progress

    this decoders developing quickly, it was single threaded last i looked o.o
     
    Last edited: Apr 9, 2019
  8. yasamoka

    yasamoka Ancient Guru

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    Are you sure lol
     
  9. Neo Cyrus

    Neo Cyrus Ancient Guru

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    Considering how powerful even a mid range mobile phone's CPU is these days, that's not going to be an issue.
     
  10. Fox2232

    Fox2232 Ancient Guru

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    In comparison to encoding effort, yes. If one has 20 years old calculator, then decode of anything remotely modern is hard.
     

  11. Nono06

    Nono06 Master Guru

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    AV1 samples can be downloaded here:
    https://www.elecard.com/videos

    MPC-HC lastest build supports AV1 SW decoding. On my 5960X@4.4Ghz all 16 threads are used and 4K videos are not totally smooth for now.
    MPC may require some additional optimizations but without an HW decoder most of the CPU won't be able to decode it.
     
  12. RealNC

    RealNC Ancient Guru

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    That's a funny typo :)
     
  13. HardwareCaps

    HardwareCaps Master Guru

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    Well this didn't say anything... what bitrates and resolutions? what about HDR? which processors will support it?
    just an empty announcement
     
  14. Astyanax

    Astyanax Ancient Guru

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    prior to multithreading and asm level optimsiations, the sample decoder DID destroy low power processors.
     
  15. Astyanax

    Astyanax Ancient Guru

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    thank you for demonstrating that the previous few users have no idea about decoding video.
     

  16. Fox2232

    Fox2232 Ancient Guru

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    What decoder MPC-HC uses?
    [​IMG]
    Blue is normalized Reference decoder. Then you see improvement on each platform.
    It does not necessarily mean that It is faster on Zen.
    it means that dav1d decoder provides much higher boost in performance on Zen platform in comparison to reference than it does on haswell.

    Either way, use of better decoder provides 3 times the performance on intel and 4 times for AMD in comparison to just using reference.
    Those decoders are new and clearly far from optimized.
     
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  17. Nono06

    Nono06 Master Guru

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    I have not tried recently but mid-march LAV filters (which MPC is based on) were updated to use dav1d:
    NEW: Using the dav1d AV1 decoder for significantly improved AV1 decoding performance
    https://github.com/Nevcairiel/LAVFilters/releases

    So maybe I should retry ;)
     
  18. schmidtbag

    schmidtbag Ancient Guru

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    The article you linked to is ENcoding... Encoding is always substantially slower. Intel's AV1 decoder isn't yet available, as the header of this article clearly states.
    Fox2232 is right: decoding [relatively] doesn't take that much CPU power. Even a crappy ARM CPU can decode 4K videos above 30FPS.
     
  19. Ronald S. Bultje

    Ronald S. Bultje New Member

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    One of the authors of the decoder here - dav1d has always been multi-threaded. See the original presentation at VDD where I talked about the multiple types of multithreading used in the decoder, why that is special and why it makes it so much more fast than other implementations that only use a single type of threading.

    With dav1d, decoder performance has become a non-issue. It is solved. The next step in the toolset generation for AV1 is to reduce power consumption, i.e. hardware decoders, in particular for mobile devices such as laptops and phones to enhance battery life and reduce heat generation; and faster/better encoders, in particular when it comes to visual quality.
     
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  20. Yxskaft

    Yxskaft Maha Guru

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    Forcing AV1 on youtube's testtube and trying the Halo Infinite trailer in 1080p, it stutters alot on both my Phenom II X4 and A10 8700p. That's using Firefox and Chrome, Edge says it doesn't support AV1 playback.
    My Nexus 7 tablet couldn't play HEVC 1080p samples smoothly back when I tried it.
     

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