[Bug 721035] New: tsdemux: fails to seek on the attached file

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=721035
  GStreamer | gst-plugins-bad | git

           Summary: tsdemux: fails to seek on the attached file
    Classification: Platform
           Product: GStreamer
           Version: git
        OS/Version: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-bad
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: julien.isorce at gmail.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


* material: http://people.collabora.com/~julien/videos/big_buck_bunny.tar.gz

* steps to reproduce:
Run gst-launch-1.0 filesrc location=big_buck_bunny.ts  ! decodebin ! navseek !
xvimagesink  then press "right arrow" while keeping mouse pointer over video
window

* actual result:
fails here
http://cgit.freedesktop.org/gstreamer/gst-plugins-bad/tree/gst/mpegtsdemux/mpegtspacketizer.c#n2266
with GStreamer-CRITICAL **: _gst_util_uint64_scale: assertion 'denom != 0'
failed

* remarks:
here "nextgroup == prevgroup" so I can see GST_DEBUG ("In group")

lastpcr is equal to firstpcr because
prevgroup->values[prevgroup->last_value].pcr is 0 
So the thrid parameter of "gst_util_uint64_scale (querypcr - firstpcr,
lastoffset - firstoffset, lastpcr - firstpcr);" is 0

I wonder if the problem would be that
"prevgroup->values[prevgroup->last_value].pcr" is not updated correctly

* other infos:
Note that before this commit
http://cgit.freedesktop.org/gstreamer/gst-plugins-bad/commit/gst/mpegtsdemux/mpegtspacketizer.c?id=2762ead5ef2a16885fbb6918dae9b8df836a361f
 there was not the problem but the seek was not working so far

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