Adds a bus watch to the default main context with the given @priority (e.g.
%G_PRIORITY_DEFAULT). It is also possible to use a non-default main
context set up using g_main_context_push_thread_default() (before
one had to create a bus watch source and attach it to the desired main
context 'manually').
This function is used to receive asynchronous messages in the main loop.
There can only be a single bus watch per bus, you must remove it before you
can set a new one.
The bus watch will only work if a GLib main loop is being run.
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 gst_bus_remove_watch() or by returning %FALSE
from @func. If the watch was added to the default main context it is also
possible to remove the watch using g_source_remove().
The bus watch will take its own reference to the @bus, so it is safe to unref
@bus using gst_object_unref() after setting the bus watch.
Adds a bus watch to the default main context with the given @priority (e.g. %G_PRIORITY_DEFAULT). It is also possible to use a non-default main context set up using g_main_context_push_thread_default() (before one had to create a bus watch source and attach it to the desired main context 'manually').
This function is used to receive asynchronous messages in the main loop. There can only be a single bus watch per bus, you must remove it before you can set a new one.
The bus watch will only work if a GLib main loop is being run.
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 gst_bus_remove_watch() or by returning %FALSE from @func. If the watch was added to the default main context it is also possible to remove the watch using g_source_remove().
The bus watch will take its own reference to the @bus, so it is safe to unref @bus using gst_object_unref() after setting the bus watch.
MT safe.