[Bug 737317] New: vp8dec should renegotiate when the input dimensions change.

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=737317
  GStreamer | gst-plugins-good | git

           Summary: vp8dec should renegotiate when the input dimensions
                    change.
    Classification: Platform
           Product: GStreamer
           Version: git
        OS/Version: All
            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: ---


wget http://people.collabora.com/~meh/Videos/vp8_resizing_exhibit.webm
wget http://people.collabora.com/~meh/scenarios/seek_artefacts_vp8.scenario

gst-validate-1.0 playbin uri=file://$PWD/vp8_resizing_exhibit.webm
--set-scenario seek_artefacts_vp8.scenario

Artefacts can be observed with current git master.

The proposed patch fixes this in a rather straightforward way, by trying to
peek the stream info for each frame, and renegotiating when a frame indeed
contained a stream info and the width or height were different from the
currently set width or height.

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