requested to merge gracefulhoon83/gst-plugins-base:wip_decodebin3_eos2 into master
This is timing issue and it could be observed as below scenario.
In normal case, we could get stored stream-start event from parsebin0:srcpads. But we've got NULL stream-start event and it is rarely found. Therefore, final EOS is propataged without custom stream-start and it is just handled in multiqueue's sink_event and then final EOS is not delivered to multiqueue post (e.g multiqueue_src_probe).
To fallback this symptom, we make manually custom stream-start event and push before final EOS.