[gstreamer-bugs] [Bug 523397] New: Implement a cairo video sink

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-plugins-bad | Ver: HEAD CVS
           Summary: Implement a cairo video sink
           Product: GStreamer
           Version: HEAD CVS
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: Normal
         Component: gst-plugins-bad
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: slomo at circular-chaos.org
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: Unspecified
   GNOME milestone: Unspecified


Hi,
it'd be nice to have a good cairo video sink for GStreamer. Currently one
exists in WebKit but it has some issues still.

http://trac.webkit.org/projects/webkit/browser/trunk/WebCore/platform/graphics/gtk/VideoSinkGStreamer.cpp

- it doesn't support upstream negotiation
- doesn't use GstVideoSink as base class
- probably fails for BGR (see TODO in 110)
- copies the data twice (see TODO in 113)


Also it would be nice if it could support more formats and if possible a
GstCairoBuffer would be nice to have so upstream elements can write their data
directly into a cairo buffer. Not sure if cairo offers something for this.


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