[MPlayer-dev-eng] [PATCH] ao_sdl buffering change

[Sascha Sommer]

On Wednesday 08 September 2004 21:11, Reimar Döffinger wrote:
> Hi,
> this is something I've been playing around with a bit. It doesn't make
> too much sense except from a theoretical standpoint, but if you have
> time please look at it and comment, test etc. anyway.
> Currently ao_sdl uses a ringbuffer consisting of 8 seperate buffers, for
> which I can't see any reason at all. In addition it isn't thread safe,
> which it should be as SDL might use a different thread for playback of
> the sound.
> This implementation uses a type of ringbuffer that should provide enough
> thread-safety for this special case while not requiring synchronization.
> I'm not sure if this is more likely to increase or decrease performance,
> I doubt there will be much change. Feel free to test if you want ;-)
>

Looks like as the cpu usage ,displayed in the status bar, is at least twice as 
high with audio only files here. Otherwise it seems to work fine.

Sascha