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#!/usr/bin/env python3
from pulsectl import Pulse, PulseLoopStop
import sys
with Pulse() as pulse:
while True:
def callback(ev):
if ev.index == sink_index: raise PulseLoopStop
def current_status(sink):
return round(sink.volume.value_flat * 100), sink.mute == 1
def get_default_sink_idx():
default_sink_name = pulse.server_info().default_sink_name
try:
sink_index = next(index for index,sink in sinks.items() if sink.name == default_sink_name)
return sink_index
except StopIteration: raise StopIteration("No default sink was found.")
try:
sinks = {s.index:s for s in pulse.sink_list()}
if len(sys.argv) > 1:
# Sink index from command line argument if provided
sink_index = int(sys.argv[1])
if not sink_index in sinks:
raise KeyError(f"Sink index {sink_index} not found in list of sinks.")
else:
# Automatic determination of default sink otherwise
sink_index = get_default_sink_idx()
pulse.event_mask_set('sink')
pulse.event_callback_set(callback)
last_value, last_mute = current_status(sinks[sink_index])
while True:
pulse.event_listen()
sinks = {s.index:s for s in pulse.sink_list()}
value, mute = current_status(sinks[sink_index])
if value != last_value or mute != last_mute:
print(str(value) + ('!' if mute else ''))
last_value, last_mute = value, mute
sys.stdout.flush()
except Exception as e:
print(f"ERROR: {e}", file=sys.stderr)
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