[gstreamer-bugs] [Bug 326598] [mpegstream] does not handle timestamp overflow correctly

GStreamer (bugzilla.gnome.org) bugzilla-daemon at bugzilla.gnome.org
Thu Mar 23 10:17:44 PST 2006


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http://bugzilla.gnome.org/show_bug.cgi?id=326598
 GStreamer | gst-plugins-ugly | Ver: HEAD CVS


Wim Taymans changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |wim at fluendo.com
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|HEAD                        |0.10.3




------- Comment #7 from Wim Taymans  2006-03-23 18:17 UTC -------
patch seems ok. seeking in mpeg still completely wrong, though. 

        Patch by: Michal Benes <michal dot benes at xeris dot cz>

        * gst/mpegstream/gstmpegdemux.c: (gst_mpeg_demux_init),
        (gst_mpeg_demux_parse_packet), (gst_mpeg_demux_parse_pes),
        (gst_mpeg_demux_send_subbuffer), (gst_mpeg_demux_reset):
        * gst/mpegstream/gstmpegdemux.h:
        * gst/mpegstream/gstmpegparse.c: (gst_mpeg_parse_parse_packhead):
        Timestamps in mpeg stream are 32-bit numbers. Therefore, with a
        clock_freq of 90kHz this timestamp overflows every ~13 hours. This
        situation really happens when grabbing DVB streams. Current
        mpegdemuxer can not handle this situation correctly and it
        restarts counting gstreamer timestamps from zero.
        Fixes #326598.


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