No audio in GeoVision avi files

[Carl Eugen Hoyos]

​http://streams.videolan.org/issues/3615/WRONG.Avi plays 8kHz pcm_u8 audio with mplayer -demuxer avi, FFmpeg detects a subtitle stream instead.

$ ffmpeg -i WRONG.Avi
ffmpeg version N-45217-gb6f435f Copyright (c) 2000-2012 the FFmpeg developers
  built on Oct  9 2012 21:23:23 with gcc 4.7 (SUSE Linux)
  configuration: --enable-gpl
  libavutil      51. 74.100 / 51. 74.100
  libavcodec     54. 65.100 / 54. 65.100
  libavformat    54. 31.100 / 54. 31.100
  libavdevice    54.  3.100 / 54.  3.100
  libavfilter     3. 19.102 /  3. 19.102
  libswscale      2.  1.101 /  2.  1.101
  libswresample   0. 16.100 /  0. 16.100
  libpostproc    52.  1.100 / 52.  1.100
[avi @ 0x19db280] Something went wrong during header parsing, I will ignore it and try to continue anyway.
Marker bit missing in complexity estimation part 1
[avi @ 0x19db280] probed stream 1 failed
[avi @ 0x19db280] max_analyze_duration 5000000 reached at 5000000
[avi @ 0x19db280] Could not find codec parameters for stream 1 (Subtitle: none): unknown codec
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, avi, from 'WRONG.Avi':
  Duration: 00:04:44.73, start: 0.000000, bitrate: 618 kb/s
    Stream #0:0: Video: mpeg4 (GEOX / 0x584F4547), yuv420p, 320x240 [SAR 1:1 DAR 4:3], 30 fps, 30 tbr, 30 tbn, 30 tbc
    Stream #0:1: Subtitle: none
At least one output file must be specified

[Carl Eugen Hoyos]

Audio is played fine by WMP.

[ami_stuff]

media player classic reports 3 streams (0 - video, 1 - text, 2 - audio)