[MPlayer-users] ff_rate_estimate_qscale: Assertion `picture_number<rcc->num_entries' failed.

[Martin Pavon]

On Tue, Nov 05, 2002 at 10:43:13AM -0800, Christian Lambert wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> 
> Hi,
> 
> I'm using mencoder Pre9 (actually from CVS but a bit after pre9 got released).
> I had this problem since Pre8 if I recall correctly but have not used mencoder
> before pre8, so it could be a generic problem.  I just encoded 2 or 3 movies and
> everytime, they complete, but at the end it output that error message:  
> The result is that the index is not written out but the movie is completed. 
> I have to run mencoder -idx -ovc copy -oac copy -o output.avi input.avi for
> the file to be repaired. 
> 
> Pos:7272.5s 174425f ( 0%)   9fps Trem:   0min   0mb  A-V:0.053 [668:116]
> Pos:7272.6s 174426f ( 0%)   9fps Trem:   0min   0mb  A-V:0.050 [668:116]
> Pos:7272.6s 174427f ( 0%)   9fps Trem:   0min   0mb  A-V:0.047 [668:116]
> Pos:7272.6s 174428f ( 0%)   9fps Trem:   0min   0mb  A-V:0.043 [668:116]
> Pos:7272.7s 174429f ( 0%)   9fps Trem:   0min   0mb  A-V:0.040 [668:116]
> Pos:7272.7s 174430f ( 0%)   9fps Trem:   0min   0mb  A-V:0.037 [668:116]
> Pos:7272.8s 174431f ( 0%)   9fps Trem:   0min   0mb  A-V:0.033 [668:116]
> Pos:7272.8s 174432f ( 0%)   9fps Trem:   0min   0mb  A-V:0.030 [668:116]
> Pos:7272.8s 174433f ( 0%)   9fps Trem:   0min   0mb  A-V:0.027 [668:116]
> mencoder: ratecontrol.c:579: ff_rate_estimate_qscale: Assertion 
> `picture_number<rcc->num_entries' failed.
> 
> I'm running 2-pass mode and it fails at the end of the 2nd pass.
> 
> My command line was:
> cat *vob | mencoder -oac mp3lame -lameopts abr:br=128:vol=3:aq=0 -aid 128 -ovc lavc 
> -lavcopts vcodec=mpeg4:vbitrate=668:vhq:vqmin=1:vqmax=31:vpass=2 -ofps 23.976  
> -vop scale=544:288,crop=720:456:0:10 -o output.avi -
> 
> Maybe it's the vqmin/vqmax that causes this?
> 
> -Christian

I had the same problem. I tried to chase the bug, but I couldn't. I encoded
one movie with your values for vqmin/vqmax and there wasn't any complain so ...
I don't know, it seems a random error. Indeed I don't know if this is a 
mencoder bug or a lavc bug. By the way, have you any problem with the resulting file? In my case it looks fine,  but it has no index; I must build it with

mencoder -ovc copy -oac copy -idx -o output.avi file-without-index.avi

Regards,

M.
-- 
Martín Pavón
martin_199ar at yahoo.com.ar
http://mate.dm.uba.ar/~mpavon/