[gstreamer-bugs] [Bug 353658] New: videotestsrc + videoscale use different strides for YVYU

GStreamer (bugzilla.gnome.org) bugzilla-daemon at bugzilla.gnome.org
Thu Aug 31 01:47:32 PDT 2006


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http://bugzilla.gnome.org/show_bug.cgi?id=353658
 GStreamer | gst-plugins-base | Ver: HEAD CVS

           Summary: videotestsrc + videoscale use different strides for YVYU
           Product: GStreamer
           Version: HEAD CVS
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-base
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: t.i.m at zen.co.uk
         QAContact: gstreamer-bugs at lists.sourceforge.net
                CC: ds at schleef.org
     GNOME version: Unspecified
   GNOME milestone: Unspecified


The following pipeline errors out with

** (gst-launch-0.10:15221): WARNING **: Size 152482 is not a multiple of unit
size 152960
ERROR: from element /pipeline0/videoscale0: subclass did not specify output
size

 gst-launch-0.10 videotestsrc !
video/x-raw-yuv,format=\(fourcc\)YVYU,width=319,height=239 ! videoscale !
video/x-raw-yuv,width=640,height=480 ! videoscale !
video/x-raw-yuv,width=319,height=239 ! fakesink

This is because videotestsrc and videoscale don't calculate the stride for YVYU
in the same way:

  videotestsrc :  stride = GST_ROUND_UP_2 (width * 2);
  videoscale   :  stride = GST_ROUND_UP_4 (width * 2);


Which one is the right one?


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