New SN40 samples fail to decode

[cehoyos]

samples/V-codecs/SN40/Shot%205.avi cannot be decoded with current FFmpeg, works fine with mplayer -vc smartsight

$ ffmpeg -i Shot\ 5.avi
ffmpeg version N-43925-g73b40da Copyright (c) 2000-2012 the FFmpeg developers
  built on Aug 27 2012 09:17:18 with gcc 4.5.3 (GCC)
  configuration: --cc=/usr/local/gcc-4.5.3/bin/gcc
  libavutil      51. 70.100 / 51. 70.100
  libavcodec     54. 54.100 / 54. 54.100
  libavformat    54. 25.104 / 54. 25.104
  libavdevice    54.  2.100 / 54.  2.100
  libavfilter     3. 13.101 /  3. 13.101
  libswscale      2.  1.101 /  2.  1.101
  libswresample   0. 15.100 /  0. 15.100
[avi @ 0x1480240] max_analyze_duration 5000000 reached at 5005000
Input #0, avi, from 'Shot 5.avi':
  Duration: 00:10:02.40, start: 0.000000, bitrate: 93 kb/s
    Stream #0:0: Video: mpeg4 (SN40 / 0x30344E53), yuv420p, 704x480, 5 fps, 29.97 tbr, 5 tbn, 5 tbc
At least one output file must be specified

[ami_stuff]

decodes ok (more or less - wrong aspect ratio) as h263