[MPlayer-users] Exact options to mencoder

[Mark Tilford]

I'm having trouble converting a file.  The first pass goes fine, but the second

mencoder $1 -ovc lavc -lavcopts vcodec=mpeg4:mbd=2:trell:vpass=2 -oac
copy -o $1.avi

gives result

success: format: 0  data: 0x0 - 0x73778876
ASF file format detected.
[asfheader] Audio stream found, -aid 2
[asfheader] Video stream found, -vid 1
VIDEO:  [DVR ]  0x0  0bpp  1000.000 fps  6031.7 kbps (736.3 kbyte/s)
[V] filefmt:6  fourcc:0x20525644  size:0x0  fps:1000.00  ftime:=0.0010
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
==========================================================================
Opening video decoder: [libmpeg2] MPEG 1/2 Video decoder libmpeg2-v0.4.0b
Selected video codec: [mpeg12] vfm: libmpeg2 (MPEG-1 or 2 (libmpeg2))
==========================================================================
audiocodec: framecopy (format=50 chans=2 rate=48000 bits=0 B/s=32000 sample-768)
VDec: vo config request - 720 x 480 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
videocodec: libavcodec (720x480 fourcc=34504d46 [FMP4])
[VE_LAVC] High quality encoding selected (non-realtime)!
[mpeg4 @ 0x8809370]requested bitrate is too low
Could not open codec.
FATAL: Cannot initialize video driver.

What do I need to do in compiling / using mencoder?