[MEncoder-users] Getting the sound right in a conversion from avi to mpg (mpeg2)

[John Dickinson]

I am converting an avi file into an mpg file and seem to have gotten
the video working well enough (thanks to people here).  However the
audio is failing for me.  The final goal is to have an mpeg2 VCD
compatible video file (with audio) for portability to the grandparents
old VCD/DVD player.

Here is the command:
mencoder -of mpeg -ovc lavc -lavcopts vcodec=mpeg2video:mbd=2:keyint=
25:vrc_minrate=600:vbitrate=6000 -vf rotate=1 -oac lavc -af
lavcresample=48000:srate=48000 in.avi -o test.mpg

Here is the output:
MEncoder 1.0pre7-3.4.2 (C) 2000-2005 MPlayer Team
CPU: Intel Pentium 4/Xeon/Celeron Foster (Family: 8, Stepping: 7)
Detected cache-line size is 64 bytes
CPUflags: Type: 8 MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 0 SSE2: 0
Compiled with runtime CPU detection - WARNING - this is not optimal!
To get best performance, recompile MPlayer with --disable-runtime-cpudetection.
File not found: 'frameno.avi'
Failed to open frameno.avi
success: format: 0  data: 0x0 - 0x289070
AVI file format detected.
VIDEO:  [MJPG]  640x480  24bpp  30.000 fps  6917.0 kbps (844.4 kbyte/s)
[V] filefmt:3  fourcc:0x47504A4D  size:640x480  fps:30.00  ftime:=0.0333
==========================================================================
Opening audio decoder: [pcm] Uncompressed PCM audio decoder
AUDIO: 16000 Hz, 1 ch, u8, 128.0 kbit/100.00% (ratio: 16000->16000)
Selected audio codec: [pcm] afm:pcm (Uncompressed PCM)
==========================================================================
PACKET SIZE: 2048 bytes
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1  (-1=autodetect) osd: 1
Opening video filter: [rotate=1]
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffmjpeg] vfm:ffmpeg (FFmpeg MJPEG decoder)
==========================================================================
[mp2 @ 00A268B8]bitrate 224 is not allowed in mp2
Couldn't open codec mp2, br=224

Seems like the bitrate is the problem but the resample doesn't work.
If I get rid of: "-oac lavc -af lavcresample=48000:srate=48000" and
replace with "-oac copy" it works but there is no sound with the
resultant file.

I am really stumped on this even after reading the html version of the
manpage that came with the window's binaries of mplayer.

John