[gstreamer-bugs] [Bug 622501] New: [videobox] may negotiate input/output format combinations it can't actually handle

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=622501
  GStreamer | gst-plugins-good | git

           Summary: [videobox] may negotiate input/output format
                    combinations it can't actually handle
    Classification: Desktop
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: Normal
         Component: gst-plugins-good
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: t.i.m at zen.co.uk
         QAContact: gstreamer-bugs at lists.sourceforge.net
      GNOME target: ---
     GNOME version: ---


This was brought up on IRC:

  gst-launch-0.10 videotestsrc ! video/x-raw-yuv,format=\(fourcc\)I420 !
videobox top=10 ! xvimagesink

fails to negotiate (errors out with not-negotiated here).

It negotiates I420 as input and YUY2 as output and then fails to find a
function to perform the operations on those formats. So when it transforms
caps, it returns combinations it can't really handle.

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