[FFmpeg-devel] [PATCH] libvpx: alt reference frame / lag

Vladimir Pantelic pan
Wed Jun 16 22:23:07 CEST 2010

John Koleszar wrote:

> The bitrate doesn't change because of the ARFs. Obviously you're going
> to spend the same number of cycles decoding the data, it's just a
> function of how you break them up.  Allowing the application to run
> more frequently is always a good thing, especially on embedded
> platforms, for single threaded applications.

Been there, done that, it does not matter much. If the player is truly
single threaded, he will miss his next decode slot due to the possible
2x frame decode time no matter whether called once or twice. If he has
a frame output queue, the queue must be able to cope with ARFs in either

How to suddenly handle non 1:1 input vs output frame relations is more 
an issue for such "limited" players.

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