[gstreamer-bugs] [Bug 391283] New: [rmdemux] can't seek in files without index

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-plugins-ugly | Ver: HEAD CVS

           Summary: [rmdemux] can't seek in files without index
           Product: GStreamer
           Version: HEAD CVS
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-ugly
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: bilboed at bilboed.com
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: Unspecified
   GNOME milestone: Unspecified


When using a .rm file which doesn't have an index (for example capture of live
real streams), rmdemux can't seek, whereas other players (namely mplayer) can
do so.

When working pull-based, rmdemux should be able to:
_ Create the index as it goes along, so if the user wants to seek back rmdemux
knows where to start from.
_ Have a 'scanning' mode where it reads the frame headers in the stream, fills
the index as above, but doesn't output any buffers, until it has enough
information to complete a seek. At this point it can then start outputting for
the good position (for example the keyframe before the seek point).

Now I come to think of it, it could also work push-based if upstream is not a
live source.


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