[Bug 774584] Playback crashes after ~15 seconds of playback in GSTGL lib

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=774584

--- Comment #2 from ste.butcher at gmail.com ---
Ah, yes...you might be right.

I added 'max-buffers=1 drop=true' to the appsink and gst-launch doesn't seem to
crash anymore, yay!

However, in app I am catching 'new-sample' to grab the frame. An empty function
(returning GST_FLOW_OK) here means the app behaves without error.  Bu, adding
the following call to the function:

gst_app_sink_pull_sample( (GstAppSink*)( appsink ) );

...and I get app slowdown and then crash (just as originally seen).

I even tried:

gst_app_sink_try_pull_sample( (GstAppSink*)( appsink ), GstClockTime( 1 ) );

...thinking the slowdown might be some blocking waiting for the sample.

This is probably something stupid I am doing/not doing...so huge apologies if
this isn't a genuine issue.

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