[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       |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  important    |                Component:
              Version:  git-master   |  undetermined
             Keywords:  regression   |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------

Comment (by bat999):

 "Probably a regression since 862120f9"

 Yes, that's it.

 @Xubuntu:~/ffmpeg-a87685d$ ./ffmpeg -i foo.aac -c copy -bsf:a
 aac_adtstoasc foo3.m4a
 ffmpeg version 2.2.git-a87685d Copyright (c) 2000-2014 the FFmpeg
 developers
   built on Jun 11 2014 12:27:32 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
   configuration:
   libavutil      52. 88.100 / 52. 88.100
   libavcodec     55. 66.100 / 55. 66.100
   libavformat    55. 42.100 / 55. 42.100
   libavdevice    55. 13.101 / 55. 13.101
   libavfilter     4.  5.100 /  4.  5.100
   libswscale      2.  6.100 /  2.  6.100
   libswresample   0. 19.100 /  0. 19.100
 [aac @ 0xab338a0] 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 'foo3.m4a':
   Metadata:
     encoder         : Lavf55.42.100
     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: 1.229300%

 @Xubuntu:~/ffmpeg-862120f$ ./ffmpeg -i foo.aac -c copy -bsf:a
 aac_adtstoasc foo4.m4a
 ffmpeg version 2.2.git-862120f Copyright (c) 2000-2014 the FFmpeg
 developers
   built on Jun 11 2014 13:01:52 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
   configuration:
   libavutil      52. 88.100 / 52. 88.100
   libavcodec     55. 66.100 / 55. 66.100
   libavformat    55. 42.100 / 55. 42.100
   libavdevice    55. 13.101 / 55. 13.101
   libavfilter     4.  5.100 /  4.  5.100
   libswscale      2.  6.100 /  2.  6.100
   libswresample   0. 19.100 /  0. 19.100
 [aac @ 0xae6b8a0] 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 'foo4.m4a':
   Metadata:
     encoder         : Lavf55.42.100
     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%



 Files attached.
 foo3.m4a ffmpeg-a87685d plays OK.
 foo4.m4a ffmpeg-862120f won't play.

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Ticket URL: <https://trac.ffmpeg.org/ticket/3715#comment:4>
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