dynamic controlled chain of volume elements

[Maik Scholz]

Hi,

I checked "doc/design/part-controller.txt".
     Element view
     ~~~~~~~~~~~~
     Elements don't need to do much. They need to:
     - mark object properties that can be changed while processing with
       GST_PARAM_CONTROLLABLE
     - call gst_object_sync_values (self, timestamp) in the processing
function
       before accessing the parameters.

>Why can't your helper class not support the controller API?

... so i have to call gst_object_sync_values from my helper class whenever
volume element needs the actual volume. 

>It would seem to be just another GstControlSource on which you can set your
N
>properties and which would then generate a single volume value from that.
Or am I misunderstanding what you try to achieve? 

Do you mean, my "helper class" should be a GstControlSource itself?
I will check that way.

Thanks a lot

Maik




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