[MEncoder-users] rc buffer underflows

[n0dalus]

Hi,

I am converting some files to mpeg2 raw video (PAL DVD) and I am
getting a lot of messages like this:
[mpeg2video @ 0x857b330]rc buffer underflow
[mpeg2video @ 0x857b330]rc buffer underflowin 449mb  A-V:0.000 [2904:0]

The command I am using is:
mencoder -of rawvideo -vf scale=720:576,harddup -nosound -ovc lavc
-lavcopts vcodec=mpeg2video:keyint=25:vbitrate=4305043:aspect=4/3:vrc_maxrate=9800:vrc_buf_size=1835:vpass=2
-mpegopts format=dvd -speed 40000/40000 -ofps 25 -passlogfile
video.pass -o video.m2v video.ogm

Later when I try to mplex these, I get a lot of errors (I am unsure if
the problems are related, but I suspect that the mencoder buffer
underflows are responsible).

I would be grateful to know what causes these buffer underflows and
what (if anything) I can do to fix them.

n0dalus.