[MPlayer-users] [BUGREPORT] libavcodec bframes bug

[Anders Rune Jensen]

Hi

Just testing the new cool features of libavcodec when I encountered
this bug:

When I enable b-frames mencoder crashes, I've tried without b-frames
and it works ok. I fails after about 30 seconds of encoding.

I get an error:

mencoder: ratecontrol.c:584: ff_rate_estimate_qscale: Assertion
`picture_number<rcc->num_entries' failed.

The input file I'm trying to encode is quite big because I just copied
the dvd into one single file, this may be the problem. ls -l
gladiator.vob: 5.699.664.772 bytes

Another thing is that I don't think that the reason changes caused the
bug, it's been there for some months IIRC. I didn't report it
before because I thought b-frames was experimental. Well now I've
reported it :)

If there is anything I can do to help fix this, please let me know.

I use the following options to mencoder:

mencoder ../gladiator.vob -oac copy -ovc lavc -vop
scale=640:272,crop=720:420:0: 78 -lavcopts
vcodec=mpeg4:vhq:vbitrate=1075:keyint=300:qpel:cmp=3:subcmp=3:vmax_
b_frames=2:vpass=1 -o gladiator-rip.avi

Settings:

Gentoo Linux 1.2
gcc version 2.95.3 20010315
GNU ld version 2.11.92.0.12.3 20011121
GNU assembler 2.11.92.0.12.3 20011121
Linux 2.4.19aa1

-- 
Anders Rune Jensen