Opened 5 years ago

Closed 5 years ago

#1044 closed enhancement (fixed)

libavfilter -drawtext

Reported by: daenix Owned by:
Priority: normal Component: avfilter
Version: unspecified Keywords: timecode
Cc: Blocked By:
Blocking: Reproduced by developer: yes
Analyzed by developer: no


On actual drawtext filter there is a small bug.
If you set the timecode='23\:59\:00\:00' or any hour less than 24 hour, you will notice that the timecode does not reset after 23:59:59:24 to 00:00:00:00 but will continue over 24:00:00:00

That is not common; most of the broadcast video equipment I've seen so far, keeps the hour counter onto: 00-23 domain.

Another drawtext related issue is how can one set timecode as system clock with frame count HH:MM:SS:FF (FF frames count)? or more explicitely how to set exact frame on the time of the day system clock which is meant to be burned-in video ?

Change History (1)

comment:1 Changed 5 years ago by ubitux

  • Component changed from undetermined to avfilter
  • Keywords timecode added
  • Reproduced by developer set
  • Resolution set to fixed
  • Status changed from new to closed
  • Type changed from defect to enhancement

With recent the update (281e29b2), you can now specify tc24hmax=1 in the drawtext option to wrap the timecode to 24 hours. I'll document it slightly soon/later.

If I understand your second concern well, it is not supported (there is no clock to timecode internals). Please open different issues for different features and bug requests; so please open a another issue if you want that feature. Please be specific about the kind of usage you expect.

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