[gstreamer-bugs] [Bug 638781] New: Video hangs on seek with FLUSH flag

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=638781
  GStreamer | gst-plugins-ugly | unspecified

           Summary: Video hangs on seek with FLUSH flag
    Classification: Desktop
           Product: GStreamer
           Version: unspecified
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: critical
          Priority: Normal
         Component: gst-plugins-ugly
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: eric at yorba.org
         QAContact: gstreamer-bugs at lists.sourceforge.net
      GNOME target: ---
     GNOME version: ---


In Shotwell, we create video thumbnails by doing a seek through a file, then
capturing the buffer to a Pixbuf.  Our seek uses a FLUSH flag because many
GStreamer codecs seem to require it.

However, we've had to disable it due to a problem with a voice annotation video
generated by a Sony camera.  The video plays correctly in Totem, but when we
try to create a thumbnail it hangs on the line:
thumbnail_pipeline.seek_simple(Gst.Format.TIME, Gst.SeekFlags.NONE,
video_length / 3);

This bug is not specific to Shotwell; the following code sample has the same
problem:
http://cgit.freedesktop.org/gstreamer/gst-plugins-base/tree/tests/examples/snapshot/snapshot.c

The issue only occurs for me when the "ugly" plugins are installed on my
Maverick box.


For more information, see this bug in the Yorba ticket database:
http://trac.yorba.org/ticket/3041

This is the file having the issue:
http://trac.yorba.org/attachment/ticket/3041/DSC09210.MPG

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