[FFmpeg-trac] #3715(undetermined:new): aac -> m4a muxed files do not play on my iPod any more.

[FFmpeg]

#3715: aac -> m4a muxed files do not play on my iPod any more.
-------------------------------------+-------------------------------------
             Reporter:  bat999       |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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 Hi
 Until recently (probably approximately one or two weeks) I could mux aac
 files into m4a with FFmpeg and they would play OK on my (old) 2nd
 generation iPod Shuffle MB225ZO/A.

 With latest ffmpeg-HEAD-8d02a55 the muxed files do not play.
 $ ffmpeg -i foo.aac -c copy -bsf:a aac_adtstoasc foo1.m4a

 They will play OK if I use a different program to mux them.
 VLC media player 2.1.5 Rincewind (revision 791b550). Compiled on Jun 6
 2014 16:07:36.
 $ cvlc foo.aac --sout="#std{access=file,mux=mp4,dst='foo2.m4a'}"
 vlc://quit

 My system is 32-bit Xubuntu-14.04.

 @Xubuntu:~/ffmpeg-HEAD-8d02a55$ ./ffmpeg -i foo.aac -c copy -bsf:a
 aac_adtstoasc foo1.m4a
 ffmpeg version 2.2.git-8d02a55 Copyright (c) 2000-2014 the FFmpeg
 developers
   built on Jun 10 2014 21:14:08 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
   configuration:
   libavutil      52. 89.100 / 52. 89.100
   libavcodec     55. 66.100 / 55. 66.100
   libavformat    55. 43.100 / 55. 43.100
   libavdevice    55. 13.101 / 55. 13.101
   libavfilter     4.  7.100 /  4.  7.100
   libswscale      2.  6.100 /  2.  6.100
   libswresample   0. 19.100 /  0. 19.100
 [aac @ 0xa96e8a0] Estimating duration from bitrate, this may be inaccurate
 Input #0, aac, from 'foo.aac':
   Duration: 00:00:37.14, bitrate: 105 kb/s
     Stream #0:0: Audio: aac, 44100 Hz, stereo, fltp, 105 kb/s
 Output #0, ipod, to 'foo1.m4a':
   Metadata:
     encoder         : Lavf55.43.100
     Stream #0:0: Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, 105
 kb/s
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
 Press [q] to stop, [?] for help
 size=     475kB time=00:00:30.00 bitrate= 129.7kbits/s
 video:0kB audio:469kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 1.227843%

 I've attached some test files.
 foo.aac is the un-muxed aac file.
 foo1.m4a is the file muxed using FFmpeg that won't play.
 foo2.m4a is the file muxed using VLC that plays OK.

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Ticket URL: <https://trac.ffmpeg.org/ticket/3715>
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