[Bug 796770] compositor: transition output frame looks ugly

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=796770

--- Comment #6 from Seungha Yang <pudding8757 at gmail.com> ---
(In reply to Tim-Philipp Müller from comment #2)
> I wonder if this wouldn't be better handled more generically e.g. by adding
> something like gst_object_queue_set_property() that would be done atomically
> when the next sync is called (possibly something that works with multiple
> objects too), or something in aggregator at least?
> 
> I might be misunderstanding the exact problem though.

As you mentioned, we need some nice API(s) to solve this problem. I think this
is generic problem of Gstreamer. Since "setting multiple properties (and maybe
multiple objects' properties also) at once" is not supported yet, some elements
such as videocrop, videomixer, compositor, etc seems to generating weird frame
sometimes.

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