GES 1.12, Two bugs (possibly related) with (1) GESEffect volume and (2) layer ordering priority

[Thibault Saunier]

> Thibault, your suggestion for #1 worked like a charm.  It fixed both of the problems.
>
> I have two followup questions.
>
> This experience has me a little worried.  If GESEffect does not work well for the `volume` plugin, can I expect problems with most of the other plugins?

Well, we use it very extensively in Pitivi without (known) problem,
how did you use them exactly?

> For future reference, I don't know how to save a *.xges file.  Would I use `ges_timeline_save_to_uri` for that?

Yes.

> On Thu, Jul 19, 2018 at 2:35 PM, Thibault Saunier <saunierthibault at gmail.com> wrote:
>>
>> Hello,
>>
>> 1. Setting mute=true means that the source will send silent, which is
>> not what you want. Also you do not need an effect to handle the volume
>> as there is already a volume element inside sources you can use the
>> ges_timeline_element_set_child_property(element, "volume"....)[0]
>> method to set it. You can see what properties audio sources expose
>> here: https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer-editing-services/html/GESAudioSource.html
>>
>> 2. Layer with lower priorities are on top of the stack of layers,
>> meaning that layer with prio=0 is "the first". Now I am not sure why
>> you get that error but it seems to be a NLEObject priority issue.
>> Providing a .xges file would help (just save your timeline and paste
>> it here if removing the effect doesn't work).
>>
>> Regards,
>>
>> Thibault Saunier
>>
>> [0] https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer-editing-services/html/GESTimelineElement.html#ges-timeline-element-set-child-property
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>
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