[Bug 783028] gstmpdparser : Crash when playing some of the Dash LIVE URL's with Gstreamer v1.12

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=783028

Edward Hervey <bilboed at bilboed.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bilboed at bilboed.com
            Version|1.12.x                      |git master

--- Comment #1 from Edward Hervey <bilboed at bilboed.com> ---
The problem seems to be the following:
* Manifest is initially parsed
 * GstMpdClient gets created along with a list of GstActiveStreams
 * A GstActiveStream gets assigned to each GstAdaptiveDemuxStream in
setup_streams()
* Late the manifest gets updated
 * A new GstMpdClient gets created along with a list of GstActiveStreams
 * That client replaces the previous one
 * The previous one gets destroyed along with the list of GstActiveStreams

...

  And eventually code tries accessing the GstAdaptiveDemuxStream's
active_stream which ... is from the previous GstMpdClient and therefore
invalid.

Not 100% sure who's at fault, but should gst_dash_demux_setup_streams() be
called again when updating the manifest ?

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