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. gst_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. gst_bus_pop().