[FFmpeg-trac] #4998(avformat:new): m4a files created by FFmpeg aren't supported by SanDisk Clip Sport/Jam.

[FFmpeg]

#4998: m4a files created by FFmpeg aren't supported by SanDisk Clip Sport/Jam.
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             Reporter:  bat999       |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  avformat
              Version:  unspecified  |               Resolution:
             Keywords:  aac mov      |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by bat999):

 Hi
 I've repeated the tests.
 The file created and muxed by FFmpeg won't play in my Sansa Clip Jam.
 The files created by neroAacEnc, faac, fdkaac, play OK.
 The files created by FFmpeg and muxed by MP4Creator and MP4Box play OK.
 I've extracted the moov data from all the files with AtomicParsley.
 Maybe somebody can analyze this data to help determine why the FFmpeg
 muxed file won't play.
 The files and the moov data are inside the results.zip file attached.

 Programs used.
 ffmpeg version git-2015-11-20-9747219
 neroAacEnc version 1.5.4.0
 faac version 1.28
 fdkaac version 0.6.2
 MP4Creator version 1.6.1d
 MP4Box - GPAC version 0.4.6-DEV-rev
 AtomicParsley version: 0.9.6

 Commands used.
 ffmpeg -i foo.wav -c:a aac -strict -2 2FFmpeg.m4a
 neroAacEnc -if foo.wav -of 2nero.m4a
 faac -o 2faac.m4a foo.wav
 fdkaac -o 2fdkaac.m4a --bitrate-mode 3 foo.wav
 ffmpeg -i foo.wav -c:a aac -strict -2 foo.aac; wine mp4creator
 -create=foo.aac 2mp4creator.m4a
 ffmpeg -i foo.wav -c:a aac -strict -2 foo.aac; MP4Box -add foo.aac -new
 2MP4Box.m4a
 AtomicParsley filename.m4a -T

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Ticket URL: <https://trac.ffmpeg.org/ticket/4998#comment:8>
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