decoding support for 6-channel ALAC streams

[ffmpeguser]

a file for testing ​http://www.mediafire.com/?8pwrpi2kli7jidq

[ffmpeguser]

ffplay.exe Canon in D Short.caf

ffplay version N-36193-gf514695, Copyright (c) 2003-2011 the FFmpeg developers
  built on Dec 26 2011 17:52:59 with gcc 4.6.2
  configuration: --disable-static --enable-shared --enable-gpl --enable-version3
 --disable-w32threads --enable-runtime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-li
bvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
  libavutil      51. 33.100 / 51. 33.100
  libavcodec     53. 48.100 / 53. 48.100
  libavformat    53. 28.100 / 53. 28.100
  libavdevice    53.  4.100 / 53.  4.100
  libavfilter     2. 54.100 /  2. 54.100
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0.  5.100 /  0.  5.100
  libpostproc    51.  2.100 / 51.  2.100
[caf @ 00A0B880] skipping CAF chunk: 75756964 (uuid), size 154
[caf @ 00A0B880] skipping CAF chunk: 75756964 (uuid), size 36
[caf @ 00A0B880] skipping CAF chunk: 6F767677 (ovvw), size 13176
[alac @ 01090AE0] Unsupported channel count: 6
    Last message repeated 1 times
Input #0, caf, from 'Canon in D Short.caf':
  Metadata:
    copyright       : Copyright (c) 2007 Apple Inc.  All Rights Reserved.
    artist          : APM Music, LLC, http://www.apmmusic.com
  Duration: 00:00:19.11, start: 0.000000, bitrate: 4058 kb/s
    Stream #0:0: Audio: alac (alac / 0x63616C61), 48000 Hz, 5.1, s32, 4050 kb/s
[alac @ 01090AE0] Unsupported channel count: 6
Canon in D Short.caf: could not open codecs

the mediafire website has a problem, so i uploaded the file in uploadhere also, in case it doesn't work properly for others too, ​http://www.uploadhere.com/G14YAKAHAR

[Carl Eugen Hoyos]

Any possibility you prepare a 2MB file and attach it here?

[ffmpeguser]

done, i cut most of the file.

[Elon Musk]

Fixed.