Adds a bus watch to the default main context with the given priority.
This function is used to receive asynchronous messages in the main loop.
When func is called, the message belongs to the caller; if you want to
keep a copy of it, call gst_message_ref() before leaving func.
The watch can be removed using g_source_remove() or by returning FALSE
from func.
Adds a bus watch to the default main context with the given priority. This function is used to receive asynchronous messages in the main loop. When func is called, the message belongs to the caller; if you want to keep a copy of it, call gst_message_ref() before leaving func. The watch can be removed using g_source_remove() or by returning FALSE from func.