[FFmpeg-trac] #9607(undetermined:new): add ability to set suggestedPresentationDelay in DASH muxer

[FFmpeg]

#9607: add ability to set suggestedPresentationDelay in DASH muxer
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             Reporter:  Gregory      |                    Owner:  (none)
  Beauregard                         |
                 Type:  enhancement  |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  git-master   |               Resolution:
             Keywords:  dash         |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Description changed by Gregory Beauregard:

Old description:

> Summary of the bug: It is currently not possible to set the
> `suggestedPresentationDelay` in generated mpd files in all cases in the
> ffmpeg DASH muxer. The default value chosen (1 segment length) results in
> unusable playback in many situations if using a player that tries to
> respect ffmpeg's chosen delay.
>
> If unwilling to provide a knob, defaulting it to a small multiple of the
> segment duration is a saner default that won't break players that try to
> respect it. See https://dashif.org/docs/DASH-IF-IOP-v4.2-clean.htm e.g.

New description:

 Summary of the bug: It is currently not possible to set the
 `suggestedPresentationDelay` in generated mpd files in all cases in the
 ffmpeg DASH muxer. The default value chosen (1 segment length depending on
 the situation) results in unusable playback in many situations if using a
 player that tries to respect ffmpeg's chosen delay.

 If unwilling to provide a knob, defaulting it to a small multiple of the
 segment duration is a saner default that won't break players that try to
 respect it. See https://dashif.org/docs/DASH-IF-IOP-v4.2-clean.htm e.g.

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Ticket URL: <https://trac.ffmpeg.org/ticket/9607#comment:1>
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