[FFmpeg-trac] #1696(avcodec:new): Year metadata wrong on some M4A files

[FFmpeg]

#1696: Year metadata wrong on some M4A files
----------------------------------+--------------------------------------
             Reporter:  enicolas  |                     Type:  defect
               Status:  new       |                 Priority:  normal
            Component:  avcodec   |                  Version:  git-master
             Keywords:  metadata  |               Blocked By:
             Blocking:            |  Reproduced by developer:  0
Analyzed by developer:  0         |
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 Summary of the bug:
 The "year" metadata is returned wrong on some M4A (Apple Lossless) files.

 How to reproduce:
 {{{
 % ffmpeg -i "01 Oxygene, Pt. I.m4a"
 ffmpeg version 0.11.1 Copyright (c) 2000-2012 the FFmpeg developers
   built on Aug 26 2012 19:30:57 with llvm_gcc 4.2.1 (Based on Apple Inc.
 build 5658) (LLVM build 2336.11.00)
   configuration: --enable-libmp3lame --enable-libfaac --enable-nonfree
 --enable-shared --enable-pic --disable-mmx --arch=x86_64
   libavutil      51. 54.100 / 51. 54.100
   libavcodec     54. 23.100 / 54. 23.100
   libavformat    54.  6.100 / 54.  6.100
   libavdevice    54.  0.100 / 54.  0.100
   libavfilter     2. 77.100 /  2. 77.100
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0. 15.100 /  0. 15.100
 Guessed Channel Layout for  Input Stream #0.0 : stereo
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '01 Oxygene, Pt. I.m4a':
   Metadata:
     major_brand     : M4A
     minor_version   : 0
     compatible_brands: M4A mp42isom
     album           : Oxygene [1, HD]
     title           : Oxygène, Pt. I
     track           : 1/6
     date            : 2011-12-19
     copyright       : Disques Dreyfus
     artist          : Jean Michel Jarre
     comment         : Apple Lossless from Qobuz
     genre           : Electronic
   Duration: 00:07:39.73, start: 0.000000, bitrate: 2760 kb/s
     Stream #0:0(eng): Audio: alac (alac / 0x63616C61), 96000 Hz, stereo,
 s32, 2755 kb/s
 }}}

 The metadata date returned is "2011-12-19", but the correct year in this
 file is "1976".

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1696>
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