Changing the caps of appsink in a running pipeline

[Thomas Scheuermann]

Hello,

I have a pipeline with appsink running like:

src ! decodebin ! videoconvert ! videoscale ! appsink

The pipeline is running with the caps I set in appsink (width, height,
format).
Now I want to change the output size of the running pipeline.
How can I do this?
Just setting new caps with gst_app_sink_set_caps is not enough, I still
get frames
with the old size.
What do I have to do else?

Regards,

Thomas
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