[MPlayer-users] Trouble with Mp3 audio in MP4 containers

[RC]

On Wed, 21 Dec 2005 15:23:52 -0500
The Wanderer <inverseparadox at comcast.net> wrote:

> I would count myself rather surprised if the true intended frame rate
> of the files was neither 30000/1001 nor 24000/1001, since those are
> the values used by the vast majority of things out there 

Well 25fps is also standard (for PAL).

> In any case, unless I'm much mistaken, fps should have nothing to do
> with A/V sync; the sync or desync should remain the same regardless,
> it's just that the video and audio will be played at a different
> speed.

I'm afraid you are "much mistaken".  The -speed option works the way you
describe, but -fps does not.  If you increase/decrease the FPS value,
the video will have increasing desync as time progresses.