[Bug 756181] New: hlssink: inconsistent segment duration since 1.5.2 onwards

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=756181

            Bug ID: 756181
           Summary: hlssink: inconsistent segment duration since 1.5.2
                    onwards
    Classification: Platform
           Product: GStreamer
           Version: 1.6.0
                OS: Linux
            Status: NEW
          Severity: critical
          Priority: Normal
         Component: gst-plugins-bad
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: nnoell3 at gmail.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

hlssink generates segments with different durations since version 1.5.2
(version 1.5.1 works fine). I downloaded and build on x86_64 gst-plugins-bad
source versions 1.5.1, 1.5.2 and 1.6.0 and run the following pipeline:

gst-launch-1.0 videotestsrc is-live=1 ! x264enc speed-preset=1 ! mpegtsmux !
hlssink target-duration=1

On version 1.5.2, I noticed that the segment duration starting from the second
segment is 0.23 seconds:

segment00000.ts -> 01.00 seconds
segment00001.ts -> 00.23 seconds
segment00002.ts -> 00.23 seconds
...

This also happens on version 1.6.0. However, it works fine on version 1.5.1,
the segment duration for all segments is always 1 second.

I am not really sure if it is an hlssink issue, I have checked the changes
between both versions (1.5.1 and 1.5.2) and I can see there is a big change in
mpegtsmux that has to do with timestamps (commit
e000a6f0a4984fbe81190df6cd439c70dafde3d6)

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