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 context_notify(self, ctx, user_data):
state = p.pa_context_get_state(ctx)
if state == p.PA_CONTEXT_READY:
self.log.info('pulseaudio context started')
self.log.info('connected to server: ' +
p.pa_context_get_server(ctx).decode())
self.log.info('server protocol version: ' +
str(p.pa_context_get_server_protocol_version(ctx)))
p.pa_context_set_subscribe_callback(self.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_SERVER
p.pa_context_subscribe(self.ctx, subscription_mask,
self.ctx_success_cb, None)
self.context_ok = True
elif state == p.PA_CONTEXT_FAILED:
self.log.critical('failed to start pulseaudio context')
self.log.info('unferencing pulseaudio context object')
p.pa_context_unref(self.ctx)
elif state == p.PA_CONTEXT_TERMINATED:
self.log.info('pulseaudio context terminated')
self.log.info('unferencing pulseaudio context object')
p.pa_context_unref(self.ctx)
self.context_ok = False
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)
def __init__(self):
GObject.GObject.__init__(self)
self.context_ok = False
self.default_sink_idx = -1
self.default_sink_name = ''
self.default_sink_rate = -1
self.default_sink_format = ''
self.default_source_idx = -1
self.default_source_name = ''
self.default_source_rate = -1
self.default_source_format = ''
# these variables are used to get values inside pulseaudio's callbacks
self.sink_is_loaded = False
self.sink_owner_module = -1
self.sink_idx = -1
self.sink_rate = -1
self.sink_format = ''
self.sink_monitor_name = ''
self.sink_monitor_idx = -1
# these variables are used to get values inside pulseaudio's callbacks
self.source_idx = -1
self.source_rate = -1
self.source_format = ''
# we redirect sink inputs to this sink
self.apps_sink_idx = -1
self.apps_sink_owner_module = -1
self.apps_sink_rate = -1
self.apps_sink_format = ''
self.apps_sink_monitor_name = ''
self.apps_sink_monitor_idx = -1
self.apps_sink_description = '\'PulseEffects(apps)\''
# microphone processed output will be sent to this sink
# we redirect source outputs to this sink monitor
self.mic_sink_idx = -1
self.mic_sink_owner_module = -1
self.mic_sink_rate = -1
self.mic_sink_format = ''
self.mic_sink_monitor_name = ''
self.mic_sink_monitor_idx = -1
self.mic_sink_description = '\'PulseEffects(mic)\''
self.max_volume = p.PA_VOLUME_NORM
self.log = logging.getLogger('PulseEffects')
# it makes no sense to show some kind of apps. So we blacklist them
self.app_blacklist = [
'PulseEffects', 'pulseeffects', 'gsd-media-keys', 'GNOME Shell',
'libcanberra', 'gnome-pomodoro', 'PulseAudio Volume Control',
'Screenshot'
]
self.media_blacklist = [
'pulsesink probe', 'bell-window-system', 'audio-volume-change',
'Peak detect', 'screen-capture'
]
# wrapping callbacks
self.ctx_notify_cb = p.pa_context_notify_cb_t(self.context_notify)
self.server_info_cb = p.pa_server_info_cb_t(self.server_info)
self.sink_info_cb = p.pa_sink_info_cb_t(self.sink_info)
self.source_info_cb = p.pa_source_info_cb_t(self.source_info)
self.sink_input_info_cb = p.pa_sink_input_info_cb_t(
self.sink_input_info)
self.source_output_info_cb = p.pa_source_output_info_cb_t(
self.source_output_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)
self.stream_state_cb = p.pa_stream_notify_cb_t(
self.stream_state_callback)
self.stream_read_cb = p.pa_stream_request_cb_t(
self.stream_read_callback)
# 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_notify_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
self.get_server_info()
self.get_default_sink_info()
self.get_default_source_info()
# subscribing to pulseaudio events
p.pa_context_set_subscribe_callback(self.ctx, self.subscribe_cb, None)
subscription_mask = p.PA_SUBSCRIPTION_MASK_SINK_INPUT + \
p.PA_SUBSCRIPTION_MASK_SOURCE_OUTPUT + \
p.PA_SUBSCRIPTION_MASK_SOURCE
p.pa_context_subscribe(self.ctx, subscription_mask,
self.ctx_success_cb, None)