[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.
-------------------------------------+------------------------------------
             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            |
-------------------------------------+------------------------------------

Comment (by bat999):

 Hi
 I've done another experiment.

 With avconv...
 avconv version v12_dev0-2198-g489e6ad, Copyright (c) 2000-2015 the Libav
 developers
   built on Dec 24 2015 16:20:43 with gcc 4.6 (Ubuntu/Linaro
 4.6.3-1ubuntu5)
 avconv -i foo.wav -strict experimental -c:a aac avconv.m4a
 The file plays OK in my Sansa Clip Jam.
 :-)

 With FFmppeg...
 ffmpeg version git-2015-12-24-4707497 Copyright (c) 2000-2015 the FFmpeg
 developers
 ffmpeg -i foo.wav -strict experimental -c:a aac ffmpeg.m4a
 The file does not play in my Sansa Clip Jam.
 :-(

 There must be some difference between the muxer in avconv and the muxer in
 FFmpeg.
 I've attached the two files '''avconv.m4a''' and '''ffmpeg.m4a'''.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/4998#comment:9>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker