Your example is (from the looks of it) using V4L2 as a source, the linked bounty...

		nemetroid on March 25, 2020 \| parent \| context \| favorite \| on: Proposed bounty for adding virtual camera / microp... Your example is (from the looks of it) using V4L2 as a source, the linked bounty wants to use V4L2 as a sink.