GES 1.14 -- How to achieve crossfade

[David Ing]

I am struggling to find a clean example for how to achieve a crossfade.

I have a layer which contains two clips of type GESSourceClip:

GESSourceClip a

starts at 0 seconds
ends at 9.999999999 seconds

GESSourceClip b

starts at 10 seconds
ends at 20 seconds


Now I want a 2 second crossfade from "a" to "b" ... but how?

Do I create a GESTransitionClip and insert it into the layer between "a"
and "b"?

What about the timings.  Do I keep the timings for "a" and "b" unchanged,
but set the transition clip as follows?

   - starts at 9 seconds
   - ends at 11 seconds

Is it okay for the GESTransitionClip to overlap with GESSourceClip with
respect to time?
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