Ticket #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 |
Description
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
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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.