[MPlayer-dev-eng] Regarding x264 decoding optimizations

[Loren Merritt]

On Fri, 25 Jan 2008, Reimar Döffinger wrote:
>
> The same applies to splitting out deblocking, it is called in-loop
> filter for a reason, you may need its results to decode the next frame.
> I'm not sure for H.264 but in general you might even need its results to
> decode the later part of the same frame.

While lavc currently deblocks each macroblock immediately after decoding 
it (to improve cache coherency), as described in the standard it's a 
separate pass after decoding a whole frame. It's not independent like 
B-frames are, but with some synchronization it can run concurrently with 
decoding.

--Loren Merritt