[MPlayer-users] asf to avi bugreport

[Arpi]

Hi,

> fps 19.78 : in every 3-7 sec there is a skip or duplicate frame
hmm. dup is better than skip, at least for -ovc copy
maybe it is 24/25 fps but has lots of duplicated frames originally.
or it is really variable framerate asf. rare but exists, especially in
low bitrate network streaming contents.

> now i understand how to find it out, but:
> 
> 1. are there some "standard" or most-used fps-values?
yes. 23.976, 24, 25, 29.97

> 2. isn't there a way for mencoder to auto-detect it?
not yet. maybe with 3-pass encoding it is possible...
(not trivial, needs counting all frames and then divide by time)

> 	i don't know the internals of mencoder/mplayer but i think if mplayer is 	
> able to play the asf correctly, then there is a way to automatically find ou
> t 
> the fps... or not?
not

mplayer uses timestamps, fps doesn't matter.
mencoder needs correct fps as the .avi format only support fixed fps.


A'rpi / Astral & ESP-team

--
Developer of MPlayer, the Movie Player for Linux - http://www.MPlayerHQ.hu