[MEncoder-users] mencoder bug: Trancoding stops without reason and gives no error message

[Daniel Bischof]

Peer,

On Tue, 27 May 2014, Peer Janssen wrote:

> The following command:
>
> time mencoder -nosound -ovc lavc -lavcopts 
> vcodec=mpeg4:aspect=16/9:vbitrate=8000000 -vf scale=1920:1080 -o 
> timelapse.avi -mf type=jpeg:fps=24 mf://@stills.txt
>
> produces this output:
>
> MEncoder svn r34540 (Ubuntu), built with gcc-4.7 (C) 2000-2012 MPlayer Team
> [...]
> Writing header...
> ODML: vprp aspect is 16:9.
> Pos:  43.2s   1037f (29%)  1.99fps Trem:  20min 137mb  A-V:0.000 [7886:0]
>
> Flushing video frames.
> Writing index...
> Writing header...
> ODML: vprp aspect is 16:9.
>
> Video stream: 7886.694 kbit/s  (985836 B/s)  size: 42596364 bytes 43.208 secs 
> 1037 frames
>
> real    8m40.314s
> user    7m3.192s
> sys     0m11.080s
>
> The problem is that it's only 29% through (1037 out of many more, as 
> mencoder knows very well since it tells "29%"), but it doesn't tell at 
> all WHY it stopped, so this cannot easily be debugged. (Memory is not a 
> problem, as there is plenty of it.)

I tried this with MEncoder r37203 and ~800 images. Got a complete 
seasick-movie, so I suggest to update. Compiling MPlayer/MEncoder is 
fairly easy.


Regards,

--D.
-- 
Daniel Bischof <menc at bischof.org>