[W] QGstreamerPlayerSession::processBusMessage:1202 - Warning: "GStreamer encountered a general core library error."

(MediaViewer:7869): GStreamer-CRITICAL **:
Trying to dispose object "sink", but it still has a parent "parser".
You need to let the parent manage the object instead of unreffing the object directly.

[W] QGstreamerPlayerSession::processBusMessage:1223 - Error: "Internal data stream error."