[MEncoder-users] RE: Negative bitrate?

[Dave Puryear]

Win2000 Pro
Mplayer 1.0pre8-3.4.2

Trying to replicate NTSC MPEG-2 encoding parameters from Digital Rapids'
Stream software...
Constant video bitrate of 4000 kbps, mp2 audio @ 128

for %%D in (%VOBS%\%FILE%*.vob) do if not exist %MPEG%\%%~nD.mpg
mencoder %VOBS%\%%~nD.vob -af volnorm -mc 0 -oac lavc -ovc lavc -of mpeg
-mpegopts format=dvd:tsaf:vbitrate=4000:muxrate=4200 -vf
crop=%cropSettings%,pp=lb/al,scale=720:480,harddup -lavcopts
vcodec=mpeg2video:vstrict=-1:vmax_b_frames=2:vb_strategy=0:b_sensitivity
=10:brd_scale=2:vrc_buf_size=1835:vrc_maxrate=4000:vrc_minrate=4000:vbit
rate=4000:vpsize=2048:keyint=18:acodec=mp2:abitrate=128:autoaspect -o
%MPEG%\%%~nD.mpg

Pos:xxxx.xs xxxxxxf (0%) 36.53fps Trem: 0min  0mb  A-V:0.000 [-3006:128]

Resulting MPEG-2 file plays fine, but still curious about the negative
bitrate.  Any ideas?

I'm also looking for ways to encode at more than 36 or 37fps.  Do I have
the right options in the right order?  Any advice is welcome.

Thanks,
Dave P.