Gets the file descriptor from the bus which can be used to get notified about
messages being available with functions like g_poll(), and allows integration
into other event loops based on file descriptors.
Whenever a message is available, the POLLIN / G_IO_IN event is set.
Warning: NEVER read or write anything to the returned fd but only use it
for getting notifications via g_poll() or similar and then use the normal
GstBus API, e.g. Bus.pop.
Gets the file descriptor from the bus which can be used to get notified about messages being available with functions like g_poll(), and allows integration into other event loops based on file descriptors. Whenever a message is available, the POLLIN / G_IO_IN event is set.
Warning: NEVER read or write anything to the returned fd but only use it for getting notifications via g_poll() or similar and then use the normal GstBus API, e.g. Bus.pop.