[Bug 733916] Simple pipeline with textoverlay and fakesink fails to negotiate

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=733916
  GStreamer | gst-plugins-base | 1.4.0

--- Comment #1 from Will Manley <gnome at williammanley.net> 2014-07-29 13:16:35 UTC ---
I'm not sure whether this is the same bug but I was also seeing similar
failures with the pipeline:

    gst-launch-1.0 videotestsrc ! textoverlay ! decodebin ! videoconvert \
                   ! video/x-raw,format=RGB ! fakesink

which would be resolved by either removing textoverlay or decodebin.  This was
how I originally came onto this subject as upgrading to 1.4 caused one of the
tests in the stb-tester test suite to start failing.  I have since put in a
workaround[1].

I'm holding off opening a second bug for this more complex pipeline until the
simple pipeline failure is understood.

[1]: https://github.com/wmanley/stb-tester/commit/ad6936e

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