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jbk | on: Dav2d
> 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 | 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.