[FFmpeg-trac] #4747(avcodec:new): ALAC decoding failure

FFmpeg trac at avcodec.org
Fri Jul 31 00:50:26 CEST 2015


#4747: ALAC decoding failure
---------------------------------+--------------------------------------
             Reporter:  cgbug    |                     Type:  defect
               Status:  new      |                 Priority:  normal
            Component:  avcodec  |                  Version:  git-master
             Keywords:           |               Blocked By:
             Blocking:           |  Reproduced by developer:  0
Analyzed by developer:  0        |
---------------------------------+--------------------------------------
 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

--
Ticket URL: <https://trac.ffmpeg.org/ticket/4747>
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