GES 1.14 -- How to achieve crossfade

[David Ing]

I don't know how to do that.

On Wed, Feb 20, 2019 at 3:59 PM Thibault Saunier <saunierthibault at gmail.com>
wrote:

> Then you should keyframe the alpha child property of the source :)
>
> On Wed, Feb 20, 2019, 20:26 David Ing <ding at panopto.com> wrote:
>
>> What if I did not want a transition between two clips "a" and "b", but
>> instead I want clip "a" to transition into whatever the lower-priority
>> layers had drawn?
>>
>> On Wed, Feb 20, 2019 at 2:12 PM David Ing <ding at panopto.com> wrote:
>>
>>> Thank you!
>>>
>>> On Wed, Feb 20, 2019 at 2:00 PM Thibault Saunier <
>>> saunierthibault at gmail.com> wrote:
>>>
>>>>
>>>>
>>>> On Wed, Feb 20, 2019, 18:44 David Ing <ding at panopto.com> wrote:
>>>>
>>>>> Thibault, you said "Transitions happen between 2 overlapping clips".
>>>>> Do you mean two clips within the same layer?
>>>>>
>>>>>
>>>>> Are you saying that this will achieve a 2-second crossfade from a -->
>>>>> b?
>>>>>
>>>>> Layer 1:
>>>>>
>>>>> GESSourceClip a
>>>>>
>>>>> starts at 0 seconds
>>>>> ends at 11 seconds
>>>>>
>>>>> GESTransitionClip c
>>>>>
>>>>> starts at 9 seconds
>>>>>
>>>>> ends at 11 seconds
>>>>>
>>>>> GESSourceClip b
>>>>>
>>>>> starts at 9 seconds
>>>>> ends at 20 seconds
>>>>>
>>>>>
>>>> That is correct yes :)
>>>>
>>>>>
>>>>> On Wed, Feb 20, 2019 at 1:37 PM Thibault Saunier <
>>>>> saunierthibault at gmail.com> wrote:
>>>>>
>>>>>> 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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>>>>>>
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