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Slurpee99 | on: Dav2d

  ... improvements around 25% compared to AV1

  AV2 decoding is roughly five times more complex than AV1 decoding
I'm not sure what these two lines mean or if we can compare them, any help?
whynotmaybe | parent | next
I understood it as compression is 25% better : a quality of 10mbps in av1 can be achieved with 8mbps in Av2. But, it needs 5 times more compute power for this 25% gain.
| root | parent
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jbk | parent | next
> I'm not sure what these two lines mean or if we can compare them, any help?

AV2 saves 25% bandwidth at the cost of 5x more decoding complexity.

0x1ceb00da | root | parent
What does "complexity" mean here? Computation required?
WD-42 | root | parent | next
dav1d is the av1 decoder and it’s an insane feat of engineering. Written in assembly, it even eschews the normal c calling convention to get even better performance.
IshKebab | root | parent
The normal C calling convention is really only for cross-binary calls (e.g. between shared libraries). If you're not doing that you can ignore it; it's not a weird thing to do. It would be odd to strictly follow it in assembly and I assume compilers don't either.
BillStrong | root | parent | next
Yes, much higher computation required to encode it, and decode it, both.
Caspy7 | root | parent
He only mentioned decode complexity. Would be interesting to know the average encode complexity compared to AV1.
croes | parent
Smaller files but harder to decode