ALAC decoding failure

[cgbug]

Sample:
​http://www.greatsound.info/media/01czjZE64K/01snd09.mov

ffmpeg version N-74158-gf977e69 Copyright (c) 2000-2015 the FFmpeg developers

built with gcc 4.9.2 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
libavutil 54. 29.100 / 54. 29.100
libavcodec 56. 56.101 / 56. 56.101
libavformat 56. 40.101 / 56. 40.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 30.100 / 5. 30.100
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.101 / 1. 2.101
libpostproc 53. 3.100 / 53. 3.100

[alac @ 04694a20] extradata is too small
[mov,mp4,m4a,3gp,3g2,mj2 @ 04683760] Failed to open codec in av_find_stream_info
[alac @ 04694a20] extradata is too small
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '01snd09.mov':

Metadata:

major_brand : qt
minor_version : 537199360
compatible_brands: qt
creation_time : 2013-06-15 14:06:31
encoder : Sound Grinder 3.4.6
encoder-eng : Sound Grinder 3.4.6

Duration: 00:00:19.32, start: 0.000000, bitrate: 986 kb/s

Stream #0:0(eng): Audio: alac (alac / 0x63616C61), 44100 Hz, stereo, 985 kb/s (default)
Metadata:

creation_time : 2013-06-15 14:06:31
handler_name : Apple Alias Data Handler

[Carl Eugen Hoyos]

Initial patch sent.

[Carl Eugen Hoyos]

Fixed in 33908f08377dd6abb219b4a080f65cb2eec938e6 - thank you for the useful sample!