mencoder -oac pcm -af dummy -ovc raw -vf format=yv12 -of avi giovani-hardiman2.mov -o giovani-hardiman2-raw.avi

identify: 
Quicktime/MOV file format detected.
ID_VIDEO_ID=0
ID_AUDIO_ID=1
VIDEO:  [jpeg]  688x454  24bpp  29.970 fps    0.0 kbps ( 0.0 kbyte/s)
ID_FILENAME=giovani-hardiman2.mov
ID_DEMUXER=mov
ID_VIDEO_FORMAT=jpeg
ID_VIDEO_BITRATE=0
ID_VIDEO_WIDTH=688
ID_VIDEO_HEIGHT=454
ID_VIDEO_FPS=29.970
ID_VIDEO_ASPECT=0.0000
ID_AUDIO_FORMAT=ima4
ID_AUDIO_BITRATE=0
ID_AUDIO_RATE=48000
ID_AUDIO_NCH=2
ID_LENGTH=45.51
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffmjpeg] vfm: ffmpeg (FFmpeg MJPEG decoder)
==========================================================================
ID_VIDEO_CODEC=ffmjpeg
==========================================================================
Opening audio decoder: [imaadpcm] IMA ADPCM audio decoder
AUDIO: 48000 Hz, 2 ch, s16le, 408.0 kbit/26.56% (ratio: 51000->192000)
ID_AUDIO_BITRATE=408000
ID_AUDIO_RATE=48000
ID_AUDIO_NCH=2


output:

MEncoder dev-SVN-rUNKNOWN-4.1.2 (C) 2000-2006 MPlayer Team
CPU: Intel(R) Xeon(TM) CPU 3.00GHz (Family: 15, Model: 4, Stepping: 10)
CPUflags: Type: 15 MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.
98 audio & 216 video codecs
success: format: 0  data: 0x0 - 0x5816332
ISO: File Type Major Brand: Original QuickTime
Quicktime/MOV file format detected.
VIDEO:  [jpeg]  688x454  24bpp  29.970 fps    0.0 kbps ( 0.0 kbyte/s)
[V] filefmt:7  fourcc:0x6765706A  size:688x454  fps:29.97  ftime:=0.0334
==========================================================================
Opening audio decoder: [imaadpcm] IMA ADPCM audio decoder
AUDIO: 48000 Hz, 2 ch, s16le, 408.0 kbit/26.56% (ratio: 51000->192000)
Selected audio codec: [imaadpcm] afm: imaadpcm (IMA ADPCM)
==========================================================================
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
Opening video filter: [format fmt=yv12]
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffmjpeg] vfm: ffmpeg (FFmpeg MJPEG decoder)
==========================================================================
VDec: vo config request - 688 x 454 (preferred colorspace: Planar 422P)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
VDec: using Planar 422P as output csp (no 1)
Movie-Aspect is 1.52:1 - prescaling to correct movie aspect.
SwScaler: reducing / aligning filtersize 1 -> 4
SwScaler: reducing / aligning filtersize 1 -> 4
SwScaler: reducing / aligning filtersize 1 -> 1
SwScaler: reducing / aligning filtersize 9 -> 8
[swscaler @ 0x836c4d0]SwScaler: BICUBIC scaler, from yuv422p to yuv420p using MMX2
[swscaler @ 0x836c4d0]SwScaler: using 4-tap MMX scaler for horizontal luminance scaling
[swscaler @ 0x836c4d0]SwScaler: using 4-tap MMX scaler for horizontal chrominance scaling
[swscaler @ 0x836c4d0]SwScaler: using 1-tap MMX "scaler" for vertical scaling (YV12 like)
[swscaler @ 0x836c4d0]SwScaler: 688x454 -> 688x454
New_Face failed. Maybe the font path is wrong.
Please supply the text font file (~/.mplayer/subfont.ttf).
subtitle font: load_sub_face failed.
Writing header...
ODML: vprp aspect is 16384:10811.
Writing header...
ODML: vprp aspect is 16384:10811.
Pos:  37.0s   1109f ( 0%) 78.76fps Trem:   0min   0mb  A-V:0.033 [112334:1536]]]
Pos:  45.5s   1364f ( 0%) 76.23fps Trem:   0min   0mb  A-V:0.033 [112334:1536]
Flushing video frames.
Writing index...
Writing header...
ODML: vprp aspect is 16384:10811.

Video stream: 112334.273 kbit/s  (14041784 B/s)  size: 639072192 bytes  45.512 secs  1364 frames

Audio stream: 1536.000 kbit/s  (191999 B/s)  size: 8738304 bytes  45.512 secs