[gstreamer-bugs] [Bug 486758] New: queue element fails to re-negotiate caps upstream when sink windows resize

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gstreamer (core) | Ver: HEAD CVS
           Summary: queue element fails to re-negotiate caps upstream when
                    sink windows resize
           Product: GStreamer
           Version: HEAD CVS
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gstreamer (core)
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: edgard.lima at indt.org.br
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: Unspecified
   GNOME milestone: Unspecified


to see the bug, just try the last pipeline listed bellow then resize the
windows with your mouse.

if you try like this "v4l2src ! queue ! ffmpegcolorspace ! ximagesink"
or "v4l2src ! queue ! ffmpegcolorspace ! identity ! ximagesink"

neither ffmpegcolorspace or identity accept the new size and the
ximagesink just put a black area and everything works fine

But,

trying this: gst-launch v4l2src ! ffmpegcolorspace ! queue  ! ximagesink

when you resize it seems the queue re-negotiate the caps with ximagesink
and then try to re-negotiate with ffmpegcolorspace which tries to
re-negotiate with v4l2src that can't work in a size like 645x483 for example

BR,
Edgard


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