[Bug 665661] New: Decklinksink is unable to play video from file sources

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=665661
  GStreamer | gst-plugins-bad | 0.10.22

           Summary: Decklinksink is unable to play video from file sources
    Classification: Platform
           Product: GStreamer
           Version: 0.10.22
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: Normal
         Component: gst-plugins-bad
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: joaopizani at gmail.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


Created an attachment (id=202904)
 --> (https://bugzilla.gnome.org/attachment.cgi?id=202904)
Output of running the failed gst-launch command with options -v and -m

Hello and good morning. I'm trying to use the Decklink Extreme 3D
capture/playback card from Black Magic Design together with GStreamer, but not
very succesfully...

My goal now is to play some simple video using gst-launch-0.10 and choosing
decklinksink as the sink element, so I'm using the following command:

"  gst-laugst-launch-0.10 playbin uri=file:///home/joaopizani/test.mp4
video-sink=decklinksink  "

And I expected the video to show up through the card's output. However,
gst-launch quits with the following output:

"
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
ERROR: from element /GstPlayBin:playbin0: Internal GStreamer error: pad
problem.  Please file a bug at
http://bugzilla.gnome.org/enter_bug.cgi?product=GStreamer.
Additional debug info:
gstplaybin.c(928): gen_video_element (): /GstPlayBin:playbin0:
Failed to configure the video sink.
ERROR: pipeline doesn't want to preroll.
Setting pipeline to NULL ...
Freeing pipeline ...
"

I have already tried using the videotestsrc element instead of playbin and it
worked just fine:  " gst-launch-0.10 videotestsrc ! decklinksink  "

So, any of you have any idea what might be going wrong here? I have no idea of
whether this is a GStreamer issue or a packaging/driver issue (I'm using Ubuntu
11.10 and the official drivers from Black Magic), so sorry if this bug doesn't
belong here.

Just in case, I am attaching the output of the failed gst-launch command with
the -v option enabled...

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