[Bug 709384] New: Videomixer : check if the source pad needs reconfiguration and update the source caps in that case.

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=709384
  GStreamer | gst-plugins-good | git

           Summary: Videomixer : check if the source pad needs
                    reconfiguration and update the source caps in that
                    case.
    Classification: Platform
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-good
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: mathieu.duponchelle at epitech.eu
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


Created an attachment (id=256417)
 View: https://bugzilla.gnome.org/attachment.cgi?id=256417
 Review: https://bugzilla.gnome.org/review?bug=709384&attachment=256417

fixes the reported issue

There was a case in my application where a pad would be removed, new caps would
be calculated with respect to the peer pad, but as that pad was unlinked those
caps ended up being any.

The source pad was relinked afterwards, but as videomixer didn't check its
reconfigure flag it ended up sending the previously computed caps, which in my
case were not accepted by the subsequent capsfilter.

The patch attached checks the reconfigure flag in _collected, and updates the
source caps accordingly.

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