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We have a use case where we promote one or more pipelines from the Linux scheduling policy SCHER_OTHER to SCHER_RR. What we are trying to create a way to prevent the SCHER_RR policy to propagate to the pipeline internal threads.

We have made a patch in the file gstelement.c in the function gst_element_call_async_func that resets the scheduling policy from SCHER_RR to SCHER_OTHER. This patch works but we are not sure that this is the proper way.

0001-Prototype-hack-for-realtime-priority-in-parent-threa.patch

We would like to discuss a permanent solution.

GStreamer version: 1.14.0 Operating system: Linux