Problem with iPod profile / preset

[rccollins]

I can encode h.264 .mp4's just fine using the x264 preset. However if I select one of the iPod presets, or just choose iPod under profile I get a video with no audio. Any help would be appreciated.



Attached is the process information.

using SAR=1000/1001
x264 [info]: using cpu capabilities MMX MMXEXT SSE SSE2 
mp4 [info]: initial delay 0 (scale 30000)
movtoy4m
Copyright 2002-2006 Johan Lindstr??m
All rights reserved..
Mon Jan 15 08:49:37 PST 2007
Encoding audio..
x264 [info]: slice I:17    Avg QP:27.41  size:  7978  PSNR Mean Y:45.68 U:49.52 V:49.26 Avg:46.36 Global:42.25
x264 [info]: slice P:1554  Avg QP:31.29  size:  3305  PSNR Mean Y:38.45 U:44.38 V:44.34 Avg:39.53 Global:37.68
x264 [info]: mb I  I16..4: 64.8%  0.0% 35.2%
x264 [info]: mb P  I16..4: 11.1%  0.0%  5.8%  P16..4: 36.3%  0.0%  0.0%  0.0%  0.0%    skip:46.7%
x264 [info]: final ratefactor: 28.19
x264 [info]: PSNR Mean Y:38.525 U:44.434 V:44.388 Avg:39.600 Global:37.712 kb/s:804.48
encoded 1571 frames, 31.42 fps, 804.63 kb/s
error: could not convert audio track!
Computing levels...
normalize: WAV header not found
normalize: error reading /Users/critchro/Desktop/a1/test.123.ff.wav
FFmpeg version CVS, Copyright (c) 2000-2004 Fabrice Bellard
Mac OSX universal build for ffmpegX
  configuration:  --enable-memalign-hack --enable-mp3lame --enable-gpl --disable-vhook --disable-ffplay --disable-ffserver --enable-a52 --enable-xvid --enable-faac --enable-faad --enable-amr_nb --enable-amr_wb --enable-pthreads --enable-x264 
  libavutil version: 49.0.0
  libavcodec version: 51.9.0
  libavformat version: 50.4.0
  built on Apr 15 2006 04:58:19, gcc: 4.0.1 (Apple Computer, Inc. build 5250)
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Users/critchro/Desktop/a1/test.123.ff.video.mp4':
  Duration: 00:00:52.4, start: 0.000000, bitrate: 805 kb/s
  Stream #0.0(und), 29.97 fps(r): Video: h264, yuv420p, 640x352
/Users/critchro/Desktop/a1/test.123.ff.wav: Unknown format

[Case]

error: could not convert audio track!

The iPod H.264 presets default to decoding with QuickTime (unlike the H.264 x264 preset). Try de-selecting that in Options, to revert to decoding with ffmpeg.
Failing that, there may be something extraordinary going on with the audio stream in your source file. Then do post the audio details.