[Bug 700806] gstbasesrc: retry pushing STREAM_START event if needed

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=700806
  GStreamer | gstreamer (core) | git

--- Comment #8 from Branko Subasic <branko.subasic at axis.com> 2013-05-22 22:38:20 UTC ---
I tested your patch, and it looks as it might solve the problem I initially
described. At least I haven't been able to make the adder unit tests fail so
far. Without your patch they fail at least every second run. With your patch
they haven't failed after being run in a loop for more than half an hour.

I also ran 'make check' in gstreamer, gst-plugins-base, gst-plugins-good,
gst-plugin-bad, and gst-rtsp-server to see if something else was fixed, or if
something was broken.

The good thing is that nothing seems to be broken by the patch. The bad is that
it does not fix all cases. I still get the problem in the unit tests for
gst-rtsp-server. However, in that case it's the <rtpsession:send_rtcp_src> pads
that get data before receiving a stream-start event. Unfortunately I haven't
had time to look into it yet, so I do not yet know what's causing it.

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