[MPlayer-dev-eng] [PATCH] autoq support for

[Arpi]

Hi,

> > as Juanjo alerady did with MC slices, we could do the same to quant/DCT,
> > i mean doing DCT for whole slice/frame first, and then doing quantization.
> > maybe detecting and skipping black blocks also help a bit.
> 
> 	I did that on 0.3.4 and Gerard reject it. Actually I detected on the MC
no problem, we can fork :)))

> part if a MB has little or zero diferential variance and marked it as
> skipped to avoid DCT/Q/IDCT/Q. But I'm thinking on bring that code
> again. Maybe not based on the MB diferences variance (has problems) but
> based on the SAD of the MB. But this could help on non intra since the
> MC is performed on that case only. I'm not sure if there are a routine
> that detect all zero coefficients on intra MB (it`s easy on the current
> implementation) to avoid the IDCT/Q right now.
I think it's easy to summarize 64 integers in MMX ?

> > (or even combining with partial intra refresh, so do not re-code all blocks
> > at every frame, just teh changed blocks. dunno if it's allowed by mpeg1, but
> > may help in both output bitrate and coding speed)
> 
> 	You mean the old trick of making P frames with just intra MB, as VIC
> does.
probably :)
i don't know VIC. what's that?


A'rpi / Astral & ESP-team

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