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))
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 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)
p.pa_context_set_source_output_volume(self.ctx, idx, cvolume_ptr,
self.ctx_success_cb, None)
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 create_stream(self, idx):
ss = p.pa_sample_spec()
ss.channels = 1
ss.format = p.PA_SAMPLE_FLOAT32LE
ss.rate = 10
stream = p.pa_stream_new(self.ctx, b'PulseEffects Level Meter',
p.get_ref(ss), None)
p.pa_stream_set_state_callback(stream, self.stream_state_cb, idx)
p.pa_stream_set_monitor_stream(stream, idx)
p.pa_stream_set_read_callback(stream, self.stream_read_cb, idx)
flags = p.PA_STREAM_PEAK_DETECT | p.PA_STREAM_DONT_MOVE
p.pa_stream_connect_record(stream, b'PulseEffects_apps.monitor', None,
flags)
def create_stream(self, idx, app_name):
ss = p.pa_sample_spec()
ss.channels = 1
ss.format = p.PA_SAMPLE_FLOAT32LE
ss.rate = 10
stream_name = app_name + ' - Level Meter Stream'
stream = p.pa_stream_new(self.ctx, stream_name.encode('utf-8'),
p.get_ref(ss), None)
p.pa_stream_set_state_callback(stream, self.stream_state_cb, idx)
p.pa_stream_set_monitor_stream(stream, idx)
p.pa_stream_set_read_callback(stream, self.stream_read_cb, idx)
flags = p.PA_STREAM_PEAK_DETECT | p.PA_STREAM_DONT_MOVE
p.pa_stream_connect_record(stream, None, None, flags)
self.streams[str(idx)] = stream