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#1  September 27, 2019 - 12:19am
joro_abv's picture
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Hi,
I'm trying the AV1 support with a few samples and one of them is stuttering at some points. Namely this one :

https://www.elecard.com/storage/video/Stream2_...

It is a very high bitrate sample and as a matter of fact - it stutters on my i7-4710HQ laptop too. At the point of stutter the bitrate goes as high as 30-36mbps, so my question is : is it that the sample just tops the hardware limits of my ATV 4K or it is something that can be fixed software side ?

  September 27, 2019 - 6:58am
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It might have something to do with AV1 being rendered by software instead of hardware on Apple products.

  September 30, 2019 - 3:05pm
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Correct. AV1 support is limited to software-based decoding right now, so some of the extreme examples may not play very well on the current Apple TV hardware.

Infuse 6 for iOS and Apple TV is now available!

  September 30, 2019 - 11:46pm
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  james wrote:

Correct. AV1 support is limited to software-based decoding right now, so some of the extreme examples may not play very well on the current Apple TV hardware.

Ok, thanks. This clears it. I though that's the case, but had to ask anyway.

  November 8, 2019 - 7:19am
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  james wrote:

Correct. AV1 support is limited to software-based decoding right now, so some of the extreme examples may not play very well on the current Apple TV hardware.

It may be my imagination, but the AV1 samples seem to play better in the latest versions. Is that a firecore improvement or is Apple implementing changes to improve AV1 performance?

  November 8, 2019 - 8:10am
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There have been a few general performance optimizations in the last few releases of Infuse, which could help with AV1 playback.

Infuse 6 for iOS and Apple TV is now available!