<div dir="ltr">Thibault, your suggestion for #1 worked like a charm.  It fixed both of the problems.<div><br></div><div>I have two followup questions.<br><div><ol><li>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?<br></li><li>For future reference, I don't know how to save a *.xges file.  Would I use `ges_timeline_save_to_uri` for that?</li></ol></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Jul 19, 2018 at 2:35 PM, Thibault Saunier <span dir="ltr"><<a href="mailto:saunierthibault@gmail.com" target="_blank">saunierthibault@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello,<br>
<br>
1. Setting mute=true means that the source will send silent, which is<br>
not what you want. Also you do not need an effect to handle the volume<br>
as there is already a volume element inside sources you can use the<br>
ges_timeline_element_set_<wbr>child_property(element, "volume"....)[0]<br>
method to set it. You can see what properties audio sources expose<br>
here: <a href="https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer-editing-services/html/GESAudioSource.html" rel="noreferrer" target="_blank">https://gstreamer.freedesktop.<wbr>org/data/doc/gstreamer/head/<wbr>gstreamer-editing-services/<wbr>html/GESAudioSource.html</a><br>
<br>
2. Layer with lower priorities are on top of the stack of layers,<br>
meaning that layer with prio=0 is "the first". Now I am not sure why<br>
you get that error but it seems to be a NLEObject priority issue.<br>
Providing a .xges file would help (just save your timeline and paste<br>
it here if removing the effect doesn't work).<br>
<br>
Regards,<br>
<br>
Thibault Saunier<br>
<br>
[0] <a href="https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer-editing-services/html/GESTimelineElement.html#ges-timeline-element-set-child-property" rel="noreferrer" target="_blank">https://gstreamer.freedesktop.<wbr>org/data/doc/gstreamer/head/<wbr>gstreamer-editing-services/<wbr>html/GESTimelineElement.html#<wbr>ges-timeline-element-set-<wbr>child-property</a><br>
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