GES 1.14 -- How to achieve crossfade

[Thibault Saunier]

Hello David,

Transitions happen between 2 overlapping clips so you need to make sure
clips overlap at the point where you add them.

Alternatively, you can use the GESTimeline::auto-transition property to
automatically create transitions when 2 clips overlap.

Regards,

Thibault

On Wed, Feb 20, 2019, 17:47 David Ing <ding at panopto.com> wrote:

> 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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