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Dav1d: performance and completion of the first release

125 pointsby rbultjeover 6 years ago

5 comments

twotwotwoover 6 years ago
It&#x27;s super neat to see desktop-class machines should be able to play 1080p AV1 fine with zero hardware support.<p>I think the lack of mention of GPUs in the post means the answer will be &quot;no&quot;, but is this an area where open-source folks could realistically someday lean on the GPU for any help with decoding at all?<p>I see mentions of CPU&#x2F;GPU &quot;hybrid decoding&quot; from GPU vendors, but can imagine that might only be something realistically possible with the lower-level access to the GPU the vendor&#x27;s own driver team has, not via the documented shader languages and APIs.
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jbkover 6 years ago
I&#x27;m the author, so if you need anything, just ask.
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cornstalksover 6 years ago
Congrats to everyone on the progress, and a huge thanks from me to all the devs who are working on this! Are there any performance comparisons with dav1d (AV1) vs ffvp9 (VP9)? I’m curious how expensive decoding AV1 is compared to VP9 (in software) (and I’m hoping someone else has already done the benchmarking so I won’t have to).
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BlackLotus89over 6 years ago
&gt; Therefore, the VideoLAN, VLC and FFmpeg communities have started to work on a new decoder<p>Is there a need to seperate VideoLAN and VLC?<p>Anyway nice progress, didn&#x27;t expect such good results so soon. My main question right now is what the slowest system is on which AV1 is still playable. I know that older CPU and ARM optimizations are on the horizon (On the other platforms, SSE and ARM assembly will follow very quickly, and we&#x27;re already as fast on ARMv8.), but I&#x27;m curious if my raspberry pi&#x2F;odroid will ever be able to play 1080p AV1 Videos.
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polskibusover 6 years ago
Is this written in Rust? If so, did any particular Rust features help a lot in this achievement, in comparison to writing the code in C or C++?
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