[gstreamer-bugs] [Bug 569781] New: [Mpegtsparse] drop of valid TS packets

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-plugins-bad | Ver: 0.10.11
           Summary: [Mpegtsparse] drop of valid TS packets
           Product: GStreamer
           Version: 0.10.11
          Platform: Other
        OS/Version: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-bad
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: mutex at runbox.com
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: Unspecified
   GNOME milestone: Unspecified


Please describe the problem:
Wrong filtering while extracting a program from a MPTS.
It seems than mpegtsparse is dropping valid packets.

Seen on dvb-s stream (Freq: 11567MHz symbol rate: 22000kHz Polarity: Vertical)


Steps to reproduce:
1. use the dvb-s stream (with coordonates given above). I can provide a file on
demand.
2. check with vlc the given file is valid: 
   $ vlc all.ts --program 9015
3. test program extration using mpegtsparse (not there is many bad crc): 
   $ GST_DEBUG=mpegtsparse:2 gst-launch filesrc location=all.ts ! mpegtsparse
program-numbers=9015 name=parse parse.program_9015 ! filesink location=9015.ts
4. check with vlc the resulting file: 
   $ vlc 9015.ts
5. the result file cannot be read anymore with vlc


Actual results:
vlc is unable to play correctly the resulting file.

Expected results:
the resulting file should not contains more errors than before the processing.

Does this happen every time?
yes

Other information:
As I can see in the source code and in the logs, there is a crc calculation on
packets which are not PSI tables which trigger a packet drop.

I do not have patch available yet...


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