[FFmpeg-trac] #9440(undetermined:new): timeline-free dash muxing not possible with all framerates

FFmpeg trac at avcodec.org
Sun Sep 26 09:31:52 EEST 2021


#9440: timeline-free dash muxing not possible with all framerates
-------------------------------------+-------------------------------------
             Reporter:  Gregory      |                    Owner:  (none)
  Beauregard                         |
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:  dash         |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Comment (by Gregory Beauregard):

 cf. the above to 24000/1001; this fraction is reduced, and the only non
 2/5 factor in the numerator is a single 3 with the remaining factors
 `<=10^6`, so segment durations that are usable in ffmpeg for this
 framerate are only restricted to be a multiple of 3/(24000/1001)=0.125125
 seconds, which allow plenty of usable segment lengths (unlike the entirely
 unusable 23.976 framerate)
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/9440#comment:7>
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