Add xob manage-volume

1 files changed, 46 insertions, 0 deletions

diff --git a/.config/xob/manage-volume b/.config/xob/manage-volume
new file mode 100755
index 0000000..d05a92f
--- /dev/null
+++ b/.config/xob/manage-volume
@@ -0,0 +1,46 @@
+#!/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)