57 lines
1.9 KiB
Python
57 lines
1.9 KiB
Python
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# whisper_local/microphone/_poll.py
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"""Polling-basierter Mikrofon-Monitor (cross-platform)."""
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import asyncio
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import logging
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from collections.abc import Awaitable, Callable
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import sounddevice as sd
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logger = logging.getLogger(__name__)
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class PollMonitor:
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def __init__(self, configured_device: str | None, interval: float = 2.5):
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self.configured_device = configured_device
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self.interval = interval
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self.on_device_added: Callable[[str], Awaitable[None]] | None = None
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self.on_device_removed: Callable[[str], Awaitable[None]] | None = None
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self.on_configured_missing: Callable[[], Awaitable[None]] | None = None
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self._task: asyncio.Task | None = None
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self._known_devices: set[str] = set()
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def _current_devices(self) -> set[str]:
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try:
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return {
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dev["name"]
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for dev in sd.query_devices()
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if dev["max_input_channels"] > 0
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}
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except Exception:
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logger.exception("Fehler beim Abfragen der Audiogeräte")
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return self._known_devices.copy()
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async def start(self) -> None:
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self._known_devices = self._current_devices()
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self._task = asyncio.create_task(self._loop())
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def stop(self) -> None:
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if self._task is not None:
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self._task.cancel()
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self._task = None
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async def _loop(self) -> None:
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while True:
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await asyncio.sleep(self.interval)
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current = self._current_devices()
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added = current - self._known_devices
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removed = self._known_devices - current
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self._known_devices = current
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for name in added:
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if self.on_device_added:
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await self.on_device_added(name)
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for name in removed:
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if self.on_device_removed:
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await self.on_device_removed(name)
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