Jaswinder Singh wrote:
Hello Phil Q,

On Wed, 2008-09-17 at 12:51 +0100, Phil Quiney wrote:

the increase to 10 was just a check to see if frame rate could be improved by 
having extra buffers available.


How much improvement you find in frame rate with extra buffers ?

ideally, if you have as many buffers as video frames, you can predecode them all and then display them at any frame rate. :-)

In a real worlds scenario where the per frame CPU time does not differ much from frame to frame, it will help little to have a large number of output buffers. In order to gain something, you must be sure that after a period of heavy CPU load comes a period of low CPU load that allows you to refill your buffer queue. I doubt that this can be met with normal video content. Most "high action" scenes will last longer than your buffers anyway.



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