GES 1.14 -- How to achieve crossfade

[David Ing]

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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>>
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