Create a new data #GstRTSPMessage with channel and store the result message in msg. Free with gstrtsp.rtspmessage.RTSPMessage.free.
a location for the new #GstRTSPMessage
the channel
a #GstRTSPResult.
Create a new data #GstRTSPMessage with channel and store the result message in msg. Free with gstrtsp.rtspmessage.RTSPMessage.free.