[Bug 644890] New: [mpegtsmux] add indexing capabilities to generate a SPN/PTS map on the fly

GStreamer (bugzilla.gnome.org) bugzilla at gnome.org
Wed Mar 16 01:48:24 PDT 2011

  GStreamer | gst-plugins-bad | git

           Summary: [mpegtsmux] add indexing capabilities to generate a
                    SPN/PTS map on the fly
    Classification: Desktop
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-bad
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: andreas.frisch at multimedia-labs.de
         QAContact: gstreamer-bugs at lists.freedesktop.org
      GNOME target: ---
     GNOME version: ---

for bluray authoring, a list of entry points is requires for the so-called
clipinfo files. those files contain a MAP of SPN / PTS value pairs.
SPN stands for Source Packet Number and is the offset from beginning of m2ts
stream file divided by M2TS-packet size (192 bytes) for every keyframe and its
respective Presentation Time Stamp.
i've added indexing capabilities to mpegtsmux and implemented the necessary
parsing to determine whether a frame is an i-frame and to extract its exact PTS
value in m2ts-mode. payload only runs through this additional logic if a
GstIndex was excplicitely set by an application utilizing mpegtsmux.

patch is to be attached

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