[gstreamer-bugs] [Bug 611194] New: [segments] gst_segment_set_newsegment_full() should allow negative updates to segment start

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=611194
  GStreamer | gstreamer (core) | git

           Summary: [segments] gst_segment_set_newsegment_full() should
                    allow negative updates to segment start
    Classification: Desktop
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gstreamer (core)
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: slomo at circular-chaos.org
         QAContact: gstreamer-bugs at lists.sourceforge.net
            Blocks: 610906
      GNOME target: ---
     GNOME version: ---


See summary, this is required for bug #610906 at least.

Situation there is: Subtitle stream is at 13.6s, Video stream at 14.4. This is
larger than 500ms, a filler segment is sent on the subtitle stream. Now
unfortunately a new subtitle buffer is found inside the file, which has a
timestamp of 14.2. This is before the segment start and will be dropped.

To fix this it's required to send update newsegment events which decrease the
start time.

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