[Bug 671380] New: Decodebin2 gives Unknown type, posting message and firing signal

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=671380
  GStreamer | gst-plugins-base | 0.10.36

           Summary: Decodebin2 gives Unknown type, posting message and
                    firing signal
    Classification: Platform
           Product: GStreamer
           Version: 0.10.36
        OS/Version: other
            Status: UNCONFIRMED
          Severity: critical
          Priority: Normal
         Component: gst-plugins-base
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: sunzun7 at gmail.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


When i upgraded the gstreamer from version 32 to version 36 , i see the video
from playbin2 is not showing the video .

After some tricks i tried to use decodebin2 from version 35 and it work with
gstreamer .36 .

After analysing the logs from gst 10.36 i see decodebin2 is emitting Unknown
type, posting message and firing signal and after this no video is seen,

and same logs are not seen in 10.35.

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