Opened 19 months ago

Last modified 19 months ago

#7292 new enhancement

Implement Feature: Stretch Subtitles Timing by Factor

Reported by: MattMcManis Owned by:
Priority: wish Component: avfilter
Version: git-master Keywords: sub
Cc: Blocked By:
Blocking: Reproduced by developer: no
Analyzed by developer: no


I'm looking to have a feature added, Stretch Subtitles by a factor [0.5, 100.0] range, like how atempo or rubberband works.

Example: Something like -substretch 3.0 (speed up 300%), -substretch 0.5 (slow down 50%).
Or as a filter -vf "subtitles=stretch=3.0".

The program MKVToolNix is able to do this under the "Timestamps and default duration" section.

This would be different that itsoffset, which does not stretch, but shifts.

Change History (1)

comment:1 Changed 19 months ago by cehoyos

  • Component changed from ffmpeg to avfilter
  • Keywords sub added; subtitle subtitles stretch timing time removed
  • Version changed from unspecified to git-master
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