Force stopping a gstreamer pipeline

[Thomas Scheuermann]

Hello,

is there a way to force the stopping of a gstreamer pipeline?
We have here a process running with several pipelines which are started
and stopped dynamically. Sometimes it happens that when I set the state
of the pipeline to GST_STATE_NULL (gst_element_set_state(_pipeline,
GST_STATE_NULL);) this call never comes back.
What can I do in this situation?
I use gstreamer 1.8.1

Regards,

Thomas
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