[Bug 681436] New: Crash in gstvideofilter.c:propose_allocation()

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=681436
  GStreamer | gst-plugins-base | 0.11.x

           Summary: Crash in gstvideofilter.c:propose_allocation()
    Classification: Platform
           Product: GStreamer
           Version: 0.11.x
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: Normal
         Component: gst-plugins-base
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: bsreerenj at gmail.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


Created an attachment (id=220648)
 --> (https://bugzilla.gnome.org/attachment.cgi?id=220648)
Fix the crash in videofilter:propose_allocation()

To reproduce the issue: 

gst-launch-1.0 filesrc
location=/home/samples/vc1/FlightSimX_720p60_51_15Mbps.wmv ! asfdemux ! queue !
avdec_wmv3 !  videoconvert ! "video/x-raw, width=(int)1280, height=(int)720,
pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive,
framerate=(fraction)2500000/41709, format=(string)BGRA" ! videoconvert !
xvimagesink

sample file: 
http://samples.mplayerhq.hu/V-codecs/WVC1/FlightSimX_720p60_51_15Mbps.wmv


playbin will work because there is no format conversion and basetransform is
working in passthrough mode... To reproduce the issue we have to avoid the
passthrough method in BaseTransform.

-- videofilter create bufferpool if there is none in the query.
-- Add "GST_VIDEO_META_API_TYPE" only if the videofilter creates
video_buffer_pool.

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