def set_source_output_mute(self, idx, mute_state):
        user_data = p.ctx_success_cb_data()

        user_data.operation = 'set_source_output_mute'.encode('utf-8')

        p.pa_context_set_source_output_mute(self.ctx, idx, mute_state,
                                            self.ctx_success_cb,
                                            p.get_ref(user_data))
    def move_source_output_to_default_source(self, idx):
        user_data = p.ctx_success_cb_data()

        user_data.operation = 'move_source_output_by_name'.encode('utf-8')

        p.pa_context_move_source_output_by_name(
            self.ctx, idx, self.default_source_name.encode(),
            self.ctx_success_cb, p.get_ref(user_data))
    def move_source_output_to_pulseeffects_source(self, idx):
        user_data = p.ctx_success_cb_data()

        user_data.operation = 'move_source_output_by_index'.encode('utf-8')

        p.pa_context_move_source_output_by_index(self.ctx, idx,
                                                 self.mic_sink_monitor_idx,
                                                 self.ctx_success_cb,
                                                 p.get_ref(user_data))
    def ctx_notify_cb(self, ctx, user_data):
        state = p.pa_context_get_state(ctx)

        if state == p.PA_CONTEXT_UNCONNECTED:
            self.log.debug(self.log_tag + 'pulseaudio context is unconnected')
        elif state == p.PA_CONTEXT_CONNECTING:
            self.log.debug(self.log_tag + 'pulseaudio context is connecting')
        elif state == p.PA_CONTEXT_AUTHORIZING:
            self.log.debug(self.log_tag + 'pulseaudio context is authorizing')
        elif state == p.PA_CONTEXT_SETTING_NAME:
            self.log.debug(self.log_tag + 'pulseaudio context is setting name')
        elif state == p.PA_CONTEXT_READY:
            self.log.debug(self.log_tag + 'pulseaudio context is ready')
            self.log.debug(self.log_tag + 'connected to server: ' +
                           p.pa_context_get_server(ctx).decode())
            self.log.debug(self.log_tag + 'server protocol version: ' +
                           str(p.pa_context_get_server_protocol_version(ctx)))

            p.pa_context_set_subscribe_callback(ctx, self.subscribe_cb, None)

            # subscribing to pulseaudio events

            subscription_mask = p.PA_SUBSCRIPTION_MASK_SINK_INPUT + \
                p.PA_SUBSCRIPTION_MASK_SOURCE_OUTPUT + \
                p.PA_SUBSCRIPTION_MASK_SOURCE + \
                p.PA_SUBSCRIPTION_MASK_SINK + \
                p.PA_SUBSCRIPTION_MASK_SERVER

            udata = p.ctx_success_cb_data()

            udata.operation = 'subscribe'.encode('utf-8')

            p.pa_context_subscribe(ctx, subscription_mask, self.ctx_success_cb,
                                   p.get_ref(udata))

            self.event_ctx_ready.set()

        elif state == p.PA_CONTEXT_FAILED:
            self.log.critical(self.log_tag +
                              'failed to start pulseaudio context')
            self.log.critical(self.log_tag +
                              'unferencing pulseaudio context object')

            p.pa_context_unref(ctx)

        elif state == p.PA_CONTEXT_TERMINATED:
            self.log.debug(self.log_tag + 'pulseaudio context terminated')

            self.event_ctx_terminated.set()
    def unload_module(self, module):
        user_data = p.ctx_success_cb_data()

        user_data.operation = 'unload_module'.encode('utf-8')

        p.pa_threaded_mainloop_lock(self.main_loop)

        o = p.pa_context_unload_module(self.ctx, module, self.ctx_success_cb,
                                       p.get_ref(user_data))

        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 set_source_output_volume(self, idx, audio_channels, value):
        cvolume = p.pa_cvolume()
        cvolume.channels = audio_channels

        raw_value = int(p.PA_VOLUME_NORM * value / 100)

        cvolume_ptr = p.pa_cvolume_set(p.get_ref(cvolume), audio_channels,
                                       raw_value)

        user_data = p.ctx_success_cb_data()

        user_data.operation = 'set_source_output_volume'.encode('utf-8')

        p.pa_context_set_source_output_volume(self.ctx, idx, cvolume_ptr,
                                              self.ctx_success_cb,
                                              p.get_ref(user_data))