cdxl: broken output with ham6 file

[ami_stuff]

​http://aminet.net/pix/anim/AminetEarthXL.lha

cdxl28svx AminetEarth.CDXL
CDXL28SVX cando.library 3.008, Copyright 1996 by Christian Effenberger

Checking CDXL-file...OK
FILENAME: "AminetEarth.CDXL"
 FRAMES = TOTAL: 185
 FORMAT = WIDTH: 162 pixel
         HEIGHT: 130 pixel
          DEPTH: 6 bitplanes
          SOUND: 7536 Hz
         COLORS: 4096
     INTERLEAVE: FALSE
            HAM: TRUE

 HEADER =  CXHD:    32 bytes
GRAPHIC =  CMAP:    32 bytes
           BODY: 17160 bytes
  SOUND =  BODY:   628 bytes
                 -----
  CHUNK = TOTAL: 17852 bytes
  CHUNK / 2048 = 8.716796875 blocks
      OPTIMIZED: FALSE

Checking OUT-file...
No OutFile specified

C:\>ffmpeg -i AminetEarth.CDXL out.avi
ffmpeg version N-37886-g60991ad Copyright (c) 2000-2012 the FFmpeg developers
  built on Feb 16 2012 02:35:39 with gcc 4.5.0 20100414 (Fedora MinGW 4.5.0-1.fc
14)
  configuration: --prefix=/var/www/users/research/ffmpeg/snapshots/build --arch=
x86 --target-os=mingw32 --cross-prefix=i686-pc-mingw32- --cc='ccache i686-pc-min
gw32-gcc' --enable-w32threads --enable-memalign-hack --enable-runtime-cpudetect
--enable-cross-compile --enable-static --disable-shared --extra-libs='-lws2_32 -
lwinmm' --extra-cflags='--static -I/var/www/users/research/ffmpeg/snapshots/buil
d/include' --extra-ldflags='-static -L/var/www/users/research/ffmpeg/snapshots/b
uild/lib' --enable-bzlib --enable-zlib --enable-gpl --enable-version3 --enable-n
onfree --enable-libx264 --enable-libspeex --enable-libtheora --enable-libvorbis
--enable-libfaac --enable-libxvid --enable-libopencore-amrnb --enable-libopencor
e-amrwb --enable-libmp3lame --enable-libvpx --disable-decoder=libvpx
  libavutil      51. 39.100 / 51. 39.100
  libavcodec     54.  2.100 / 54.  2.100
  libavformat    54.  1.100 / 54.  1.100
  libavdevice    53.  4.100 / 53.  4.100
  libavfilter     2. 62.100 /  2. 62.100
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0.  6.100 /  0.  6.100
  libpostproc    52.  0.100 / 52.  0.100
[cdxl @ 0x1d69bc0] max_analyze_duration 5000000 reached at 5000000
[cdxl @ 0x1d69bc0] Estimating duration from bitrate, this may be inaccurate
Input #0, cdxl, from 'AminetEarth.CDXL':
  Duration: N/A, bitrate: N/A
    Stream #0:0: Video: cdxl, bgr24, 162x130, 10 fps, 10 tbr, 10 tbn
    Stream #0:1: Audio: pcm_s8, 11025 Hz, 1 channels, u8, 88 kb/s
Incompatible pixel format 'bgr24' for codec 'mpeg4', auto-selecting format 'yuv4
20p'
[buffer @ 0x1d75860] w:162 h:130 pixfmt:bgr24 tb:1/1000000 sar:0/1 sws_param:
[buffersink @ 0x1d75ae0] auto-inserting filter 'auto-inserted scale 0' between t
he filter 'src' and the filter 'out'
[scale @ 0x1d75f60] w:162 h:130 fmt:bgr24 -> w:162 h:130 fmt:yuv420p flags:0x4
Incompatible sample format 'u8' for codec 'libmp3lame', auto-selecting format 's
16'
Output #0, avi, to 'out.avi':
  Metadata:
    ISFT            : Lavf54.1.100
    Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 162x130, q=2-31, 200
 kb/s, 10 tbn, 10 tbc
    Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 11025 Hz, 1 channels, s16, 12
8 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (cdxl -> mpeg4)
  Stream #0:1 -> #0:1 (pcm_s8 -> libmp3lame)
Press [q] to stop, [?] for help
frame=  147 fps=  0 q=13.5 size=     380kB time=00:00:08.25 bitrate= 377.2kbits/
frame=  185 fps=  0 q=13.0 Lsize=     639kB time=00:00:10.65 bitrate= 490.9kbits
/s
video:536kB audio:83kB global headers:0kB muxing overhead 3.050578%

[Elon Musk]

fixed locally.