def connect(self, server=None):
"""Connect to pulseaudio server.
:Parameters:
`server` : str
Server to connect to, or ``None`` for the default local
server (which may be spawned as a daemon if no server is
found).
"""
# TODO disconnect from old
assert not self._context, 'Already connected'
# Create context
app_name = self.get_app_name()
self._context = pa.pa_context_new(self.mainloop, app_name.encode('ASCII'))
# Context state callback
self._state_cb_func = pa.pa_context_notify_cb_t(self._state_cb)
pa.pa_context_set_state_callback(self._context,
self._state_cb_func, None)
# Connect
check(
pa.pa_context_connect(self._context, server, 0, None)
)
with self.lock:
check(
pa.pa_threaded_mainloop_start(self.threaded_mainloop)
)
# Wait for context ready.
self.wait()
if pa.pa_context_get_state(self._context) != pa.PA_CONTEXT_READY:
check(-1)
def _state_cb(self, context, userdata):
if _debug:
print('context state cb')
state = pa.pa_context_get_state(self._context)
if state in (pa.PA_CONTEXT_READY,
pa.PA_CONTEXT_TERMINATED,
pa.PA_CONTEXT_FAILED):
self.signal()