[MPlayer-users] IS SMP support for X264 decoding possible

Loren Merritt lorenm at u.washington.edu
Wed Sep 20 05:44:26 CEST 2006


On Wed, 20 Sep 2006, Andrew Savchenko wrote:

> On 19 Sep 2006 20:59, Rich Felker wrote:
>>> That's true... But like always, the ones who care about such a
>>> feature should help themselves with their keyboard and code support
>>> for it.
>>
>> I don't think it would help because it would be rejected. Unless they
>> can find a way to include _optional_ threads support that can be
>> fully left out at compiletime.
>
> Correct me if I'm not right, but, according to mplayer's documentation
> it already has a thread support which allows usage serveral CPU cores
> (Linux smp-kernel must distribute different threads to different cores
> itself):
> man mplayer, -lavdopts description:
> ---
> threads=<1-8>
>        number of threads to use for decoding (default: 1)
> ---

libavcodec contains a whole bunch of codecs, and only a few of them 
implement that option. (The same is true of almost any other -lavcopts and 
-lavdopts).

--Loren Merritt



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