ffmpeg -i Desktop/woody_woodpecker_pantry_panic_256kb.mp4 -s 320x240 -ar 44100 -r 12 movie.flv
FFmpeg version SVN-r6005, Copyright (c) 2000-2004 Fabrice Bellard
  configuration:  --prefix=/usr --incdir=/usr/include/ffmpeg --libdir=/usr/lib --shlibdir=/usr/lib --mandir=/usr/share/man --cpu=x86 --extra-cflags=-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m32 -march=i386 -mtune=generic -fasynchronous-unwind-tables --enable-mp3lame --enable-libogg --enable-vorbis --enable-faad --enable-faac --enable-libgsm --enable-xvid --enable-a52 --enable-a52bin --enable-pp --disable-static --enable-shared --enable-gpl --disable-debug --disable-opts --disable-strip
  libavutil version: 49.0.0
  libavcodec version: 51.11.0
  libavformat version: 50.5.0
  built on Aug 18 2006 08:11:51, gcc: 4.1.1 20060525 (Red Hat 4.1.1-1)
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Desktop/woody_woodpecker_pantry_panic_256kb.mp4':
  Duration: 00:06:51.4, start: 0.000000, bitrate: 353 kb/s
  Stream #0.0(eng): Video: mpeg4, yuv420p, 320x240, 29.97 fps(r)
  Stream #0.1(eng): Data: rtp  / 0x20707472

With newer version:

 ./ffmpeg -i ~misch/woody_woodpecker_pantry_panic_256kb.mp4 test1.mpg
FFmpeg version SVN-r8966, Copyright (c) 2000-2007 Fabrice Bellard, et al.
  configuration: --enable-libmp3lame --enable-libfaad --enable-libogg --enable-gpl --enable-libamr-nb --disable-ffserver
  libavutil version: 49.4.0
  libavcodec version: 51.40.4
  libavformat version: 51.12.1
  built on May 12 2007 19:02:03, gcc: 4.1.2

Seems stream 0 codec frame rate differs from container frame rate: 2997.00 (2997/1) -> 29.97 (30000/1001)
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/misch/woody_woodpecker_pantry_panic_256kb.mp4':
  Duration: 00:06:51.4, start: 0.000000, bitrate: 353 kb/s
  Stream #0.0(eng): Video: mpeg4, yuv420p, 320x240, 29.97 fps(r)
  Stream #0.1(eng): Data: rtp  / 0x20707472
  Stream #0.2(eng): Audio: aac, 48000 Hz, stereo
  Stream #0.3(eng): Data: rtp  / 0x20707472
  Stream #0.4(eng): Data: mp4s / 0x7334706D
  Stream #0.5(eng): Data: mp4s / 0x7334706D
Output #0, mpeg, to 'test1.mpg':
  Stream #0.0: Video: mpeg1video, yuv420p, 320x240, q=2-31, 200 kb/s, 29.97 fps(c)
  Stream #0.1: Audio: mp2, 48000 Hz, stereo, 64 kb/s
Stream mapping:
  Stream #0.0 -> #0.0
  Stream #0.2 -> #0.1
Press [q] to stop encoding
[aac @ 0x8496b88]faac: frame decoding failed: Maximum number of bitstream elements exceeded
Error while decoding stream #0.2
[aac @ 0x8496b88]faac: frame decoding failed: Unexpected channel configuration change
Error while decoding stream #0.2
[aac @ 0x8496b88]faac: frame decoding failed: Unexpected channel configuration change
Error while decoding stream #0.2
[aac @ 0x8496b88]faac: frame decoding failed: Unexpected channel configuration change
Error while decoding stream #0.2
[aac @ 0x8496b88]faac: frame decoding failed: Unexpected channel configuration change
Error while decoding stream #0.2
[aac @ 0x8496b88]faac: frame decoding failed: Unexpected channel configuration change
Error while decoding stream #0.2
[aac @ 0x8496b88]faac: frame decoding failed: Unexpected channel configuration change
Error while decoding stream #0.2
[aac @ 0x8496b88]faac: frame decoding failed: Unexpected channel configuration change
Error while decoding stream #0.2
[aac @ 0x8496b88]faac: frame decoding failed: Unexpected channel configuration change
Error while decoding stream #0.2
[aac @ 0x8496b88]faac: frame decoding failed: Unexpected channel configuration change
Error while decoding stream #0.2
[aac @ 0x8496b88]faac: frame decoding failed: Unexpected channel configuration change
Error while decoding stream #0.2
[aac @ 0x8496b88]faac: frame decoding failed: Unexpected channel configuration change
Error while decoding stream #0.2
[aac @ 0x8496b88]faac: frame decoding failed: Unexpected channel configuration change
Error while decoding stream #0.2
[aac @ 0x8496b88]faac: frame decoding failed: Unexpected channel configuration change
Error while decoding stream #0.2
frame=   11 fps=  0 q=2.0 Lsize=       8kB time=0.0 bitrate=2730.7kbits/s
video:5kB audio:0kB global headers:0kB muxing overhead 61.164667%
Received signal 2: terminating.

  Stream #0.2(eng): Audio: aac, 48000 Hz, stereo
  Stream #0.3(eng): Data: rtp  / 0x20707472
  Stream #0.4(eng): Data: mp4s / 0x7334706D
  Stream #0.5(eng): Data: mp4s / 0x7334706D
File 'movie.flv' already exists. Overwrite ? [y/N] y
Output #0, flv, to 'movie.flv':
  Stream #0.0: Video: flv, yuv420p, 320x240, q=2-31, 200 kb/s, 12.00 fps(c)
  Stream #0.1: Audio: mp3, 44100 Hz, stereo, 64 kb/s
Stream mapping:
  Stream #0.0 -> #0.0
  Stream #0.2 -> #0.1
Press [q] to stop encoding
[aac @ 0x3bd9184]faac: frame decoding failed: Unexpected channel configuration change
Error while decoding stream #0.2
[aac @ 0x3bd9184]faac: frame decoding failed: Unexpected channel configuration change
Error while decoding stream #0.2
[aac @ 0x3bd9184]faac: frame decoding failed: Unexpected channel configuration change
Error while decoding stream #0.2
[aac @ 0x3bd9184]faac: frame decoding failed: Unexpected channel configuration change
Error while decoding stream #0.2
[aac @ 0x3bd9184]faac: frame decoding failed: Unexpected channel configuration change
Error while decoding stream #0.2
[aac @ 0x3bd9184]faac: frame decoding failed: Unexpected channel configuration change
Error while decoding stream #0.2
frame=    5 q=2.0 Lsize=       8kB time=0.3 bitrate= 217.9kbits/s
video:5kB audio:2kB global headers:0kB muxing overhead 5.728456%
Received signal 2: terminating.