[FFmpeg-user] Timecode Burnin with negative start

betonpfeiler betonpfeiler at googlemail.com
Fri Jun 21 00:00:52 CEST 2013

Am 20.06.2013 02:01, schrieb Wayne Poll:
> That's certainly how we do it in the broadcast world - 10:00:00:00 picture start for 25fps content and 01:00:00:00 picture start for 29.97fps content - so as Phil pointed out, the start values could be either 09:59:56:00 or 00:59:56:00.
> Wayne Poll | Technical & IT Systems Manager |
> NHNZ | 5 Melville Street, Dunedin 9016, New Zealand |
Normaly, that's correct. But for DCP Mastering you need the subtitles to 
start at 00:00:00:00 for each reel. For some reason it seems to be 
really, really hard for subtitling facilitys to keep that in mind... so 
if we start the timecode at 01:00:00:00, in most cases, we have to 
adjust the subtitles. Sadly, we can't decide with which facilitys to 
work with.
So right now, we're doing it in two steps, first encode the reel with 
00:00:00:00 timecode, after that put it together with pre- and postroll...

More information about the ffmpeg-user mailing list