[FFmpeg-trac] #8234(avformat:new): mp4 file with id3v2 tag detected as mp4 but still fails decoding

[FFmpeg]

#8234: mp4 file with id3v2 tag detected as mp4 but still fails decoding
-------------------------------------+-------------------------------------
             Reporter:  Mattias      |                    Owner:  (none)
  Wadman                             |
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  mov aac      |               Blocked By:
  id3v2                              |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Comment (by Mattias Wadman):

 Ran into this again and was about to file an issue and rediscovered this
 ticket. Seems to still be an issue with ffmpeg master as of today.

 File to reproduce can be create with:
 {{{
 ./ffmpeg -f lavfi -i sine -t 20ms -c aac aac.mp4
 (echo -ne "ID3\0x02\0x00\x00\x00\x00\x00\x00" ; cat aac.mp4) > id3v2_aac

 # seems to decode and skip id3v2 tag but fails decoding with
 # [aac @ 0x7fdb761097c0] channel element 3.2 is not allocated
 # Error while decoding stream #0:0: Invalid data found when processing
 input
 # [aac @ 0x7fdb761097c0] channel element 2.12 is not allocated
 # Error while decoding stream #0:0: Invalid data found when processing
 input
 ./ffmpeg -i id3v2_aac -f null -
 }}}
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/8234#comment:3>
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