This is what splitmuxsink is supposed to do. The files can then be played in sequence using splitmuxsrc.
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Von: gstreamer-devel [mailto:
[hidden email]] Im Auftrag von Filip Štedronský
Gesendet: Donnerstag, 31. Mai 2018 13:53
An:
[hidden email]
Betreff: splitmuxsink and timestamps
Hi all,
I'm trying to use splitmuxsink to split a video into several segments like
this:
gst-launch-1.0 -e filesrc location=input.mkv ! matroskademux ! h264parse \
! splitmuxsink location=%02d.mkv max-size-time=15000000000 \
muxer=matroskamux
The problem is that all the created segments keep the original timestamps. For example, the timestamps of the second segment start at 0:15 instead of 0:00:
$ mkvinfo -v 00.mkv
[...]
| + Duration: 00:00:14.540000000
[...]
|+ Cluster
| + Cluster timestamp: 00:00:00.000000000
| + Simple block: key, track number 1, 1 frame(s), timestamp 00:00:00.000000000
[...]
versus:
$ mkvinfo -v 01.mkv
[...]
| + Duration: 00:00:13.964000000
[...]
|+ Cluster
| + Cluster timestamp: 00:00:14.580000000
| + Simple block: key, track number 1, 1 frame(s), timestamp 00:00:14.580000000
[...]
This causes problems with seeking e.g. in mpv.
Is this by design or a bug?
Could a "reset timestamps at start of each segment" option be added?
(akin to -reset_timestamps option in ffmpeg)
Is there some other way to fix the timestamps using other gstreamer elements? (googling hasn't yielded much)
The used test files are (but any mkv file will do):
http://regnarg.cz/tmp/input.mkv http://regnarg.cz/tmp/00.mkv http://regnarg.cz/tmp/01.mkvThanks for any pointers.
Filip Stedronsky
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