def subscribe_cb(self, context, event_value, idx, user_data): if not idx: idx = 0 event_facility = event_value & p.PA_SUBSCRIPTION_EVENT_FACILITY_MASK if event_facility == p.PA_SUBSCRIPTION_EVENT_SINK_INPUT: event_type = event_value & p.PA_SUBSCRIPTION_EVENT_TYPE_MASK if event_type == p.PA_SUBSCRIPTION_EVENT_NEW: p.pa_context_get_sink_input_info(context, idx, self.sink_input_info_cb, 1) # 1 for new elif event_type == p.PA_SUBSCRIPTION_EVENT_CHANGE: p.pa_context_get_sink_input_info(context, idx, self.sink_input_info_cb, 2) # 2 for changes elif event_type == p.PA_SUBSCRIPTION_EVENT_REMOVE: GLib.idle_add(self.emit, 'sink_input_removed', idx) elif event_facility == p.PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT: event_type = event_value & p.PA_SUBSCRIPTION_EVENT_TYPE_MASK if event_type == p.PA_SUBSCRIPTION_EVENT_NEW: p.pa_context_get_source_output_info(context, idx, self.source_output_info_cb, 1) # 1 for new elif event_type == p.PA_SUBSCRIPTION_EVENT_CHANGE: p.pa_context_get_source_output_info(context, idx, self.source_output_info_cb, 2) # 1 for new elif event_type == p.PA_SUBSCRIPTION_EVENT_REMOVE: GLib.idle_add(self.emit, 'source_output_removed', idx) elif event_facility == p.PA_SUBSCRIPTION_EVENT_SOURCE: event_type = event_value & p.PA_SUBSCRIPTION_EVENT_TYPE_MASK if event_type == p.PA_SUBSCRIPTION_EVENT_NEW: p.pa_context_get_source_info_by_index(self.ctx, idx, self.source_info_cb, 1) # 1 for new elif event_type == p.PA_SUBSCRIPTION_EVENT_CHANGE: pass elif event_type == p.PA_SUBSCRIPTION_EVENT_REMOVE: GLib.idle_add(self.emit, 'source_removed', idx) elif event_facility == p.PA_SUBSCRIPTION_EVENT_SINK: event_type = event_value & p.PA_SUBSCRIPTION_EVENT_TYPE_MASK if event_type == p.PA_SUBSCRIPTION_EVENT_NEW: p.pa_context_get_sink_info_by_index(self.ctx, idx, self.sink_info_cb, 1) # 1 for new elif event_type == p.PA_SUBSCRIPTION_EVENT_CHANGE: pass elif event_type == p.PA_SUBSCRIPTION_EVENT_REMOVE: GLib.idle_add(self.emit, 'sink_removed', idx) elif event_facility == p.PA_SUBSCRIPTION_EVENT_SERVER: event_type = event_value & p.PA_SUBSCRIPTION_EVENT_TYPE_MASK if event_type == p.PA_SUBSCRIPTION_EVENT_CHANGE: p.pa_context_get_server_info(context, self.server_info_cb, 1)
def get_server_info(self): o = p.pa_context_get_server_info(self.ctx, self.server_info_cb, None) while p.pa_operation_get_state(o) == p.PA_OPERATION_RUNNING: pass p.pa_operation_unref(o)
def get_server_info(self): p.pa_threaded_mainloop_lock(self.main_loop) o = p.pa_context_get_server_info(self.ctx, self.server_info_cb, None) while p.pa_operation_get_state(o) == p.PA_OPERATION_RUNNING: p.pa_threaded_mainloop_wait(self.main_loop) p.pa_operation_unref(o) p.pa_threaded_mainloop_unlock(self.main_loop)
def __init__(self): GObject.GObject.__init__(self) self.context_ok = False self.default_sink_name = '' self.sink_is_loaded = False self.sink_owner_module = -1 self.sink_idx = -1 self.sink_monitor_name = '' self.sink_inputs = [] self.max_volume = p.PA_VOLUME_NORM self.log = logging.getLogger('PulseEffects') self.app_blacklist = [ 'PulseEffects', 'pulseeffects', 'gsd-media-keys', 'GNOME Shell', 'libcanberra', 'gnome-pomodoro' ] self.media_blacklist = ['pulsesink probe'] # wrapping callbacks self.ctx_cb = p.pa_context_notify_cb_t(self.context_status) self.server_info_cb = p.pa_server_info_cb_t(self.server_info) self.default_sink_info_cb = p.pa_sink_info_cb_t(self.default_sink_info) self.sink_info_cb = p.pa_sink_info_cb_t(self.sink_info) self.sink_input_info_cb = p.pa_sink_input_info_cb_t( self.sink_input_info) self.ctx_success_cb = p.pa_context_success_cb_t(self.ctx_success) self.subscribe_cb = p.pa_context_subscribe_cb_t(self.subscribe) # creating main loop and context self.main_loop = p.pa_threaded_mainloop_new() self.main_loop_api = p.pa_threaded_mainloop_get_api(self.main_loop) self.ctx = p.pa_context_new(self.main_loop_api, b'PulseEffects') p.pa_context_set_state_callback(self.ctx, self.ctx_cb, None) p.pa_context_connect(self.ctx, None, 0, None) p.pa_threaded_mainloop_start(self.main_loop) # waiting context while self.context_ok is False: pass # getting default sink name through server info o = p.pa_context_get_server_info(self.ctx, self.server_info_cb, None) while p.pa_operation_get_state(o) == p.PA_OPERATION_RUNNING: pass p.pa_operation_unref(o) self.log.info('default pulseaudio sink: ' + self.default_sink_name) # getting default sink rate through sink info. We set # module-null-sink to the same rate to reduce clock drift o = p.pa_context_get_sink_info_by_name(self.ctx, self.default_sink_name.encode(), self.default_sink_info_cb, None) while p.pa_operation_get_state(o) == p.PA_OPERATION_RUNNING: pass p.pa_operation_unref(o) self.log.info('default pulseaudio sink audio format: ' + str(self.default_sink_format) + '. We will use the same format.') self.log.info('default pulseaudio sink sampling rate: ' + str(self.default_sink_rate) + ' Hz. We will use the same rate.') # load source sink self.load_sink() # search sink inputs o = p.pa_context_get_sink_input_info_list(self.ctx, self.sink_input_info_cb, None) while p.pa_operation_get_state(o) == p.PA_OPERATION_RUNNING: pass p.pa_operation_unref(o) # subscribing to pulseaudio events p.pa_context_set_subscribe_callback(self.ctx, self.subscribe_cb, None) p.pa_context_subscribe(self.ctx, p.PA_SUBSCRIPTION_MASK_SINK_INPUT, self.ctx_success_cb, None)