[FFmpeg-trac] #3842(avformat:open): AAC (mp4a) DASH takes abnormally long to detect (~4 - 6s)

[FFmpeg]

#3842: AAC (mp4a) DASH takes abnormally long to detect (~4 - 6s)
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             Reporter:  viperfx      |                    Owner:
                 Type:  enhancement  |                   Status:  open
             Priority:  wish         |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  mov          |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Changes (by cehoyos):

 * priority:  normal => wish
 * status:  new => open
 * version:  2.2.4 => git-master
 * type:  defect => enhancement


Comment:

 Afaiu, this is an enhancement request to support reading the {{{sidx}}}
 box as defined in 8.16.3 of ISO 14496-12.

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Ticket URL: <https://trac.ffmpeg.org/ticket/3842#comment:14>
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