[MPlayer-dev-eng] [PATCH] multi-threaded lavc

[Torinthiel]

On Tue, Aug 31, 2004 at 11:02:31PM +0200, Michael Niedermayer wrote:
> > michael, imo it should be possible to make a mode where the threaded
> > motion est behaves just like the non-threaded. just delay subsequent
> > rows so that when row N is on mb M, row N+1 is on mb M-1. it won't be
> > as fast but it might be worth it. the synchronization could be done
> > without thread-level locking. if it's not obvious how, i can explain.
> 1 row != 1 thread, and IIRC the optimal number of threads was close to the 
> number of cpus, in which case there will be several rows per thread, waiting 
> in such a case for the mb above is problematic speedwise

So it's like first thread handles first 8 rows, second next 8 and so on?
And would it be possible that row m goes to thread m%N, N-number of
threads?
This way, assuming each CPU has about the same power, wouldn't cause
much delay. Only a constant delay at the beginning of ecoding.
Torinthiel

-- 
 Waclaw "Torinthiel" Schiller       GG#: 542916, 3073512
   torinthiel(at)megapolis(dot)pl
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