Files
esl-reader/lib/sounds.py
2024-03-13 16:47:15 -04:00

121 lines
3.9 KiB
Python

from typing import Optional, Self, Type, cast
from PyQt6.QtCore import QObject, Qt, QUrl, pyqtSlot
from PyQt6.QtMultimedia import (
QAudioDevice,
QAudioOutput,
QMediaDevices,
QMediaPlayer,
QSoundEffect,
)
# from PyQt6.QtWidgets import QWidget
class SoundOff(QObject):
_instance = None
def __new__(cls: Type[Self]) -> Self:
if cls._instance:
return cls._instance
cls._instance = super(SoundOff, cls).__new__(cls)
return cls._instance
def __init__(self) -> None:
super().__init__()
#
# Setup devices
#
self.virtualDevice = None
for output in QMediaDevices.audioOutputs():
if output.id().data().decode("utf-8") == "virt-input":
self.virtualDevice = output
if output.isDefault():
self.localDevice = output
self.alertEffect = QSoundEffect()
self.alertEffect.setSource(QUrl("qrc:/beep.wav"))
self.alertEffect.setAudioDevice(self.localDevice)
self.alertEffect.setVolume(0.25)
self.alertEffect.setLoopCount(1)
self.localPlayer = QMediaPlayer()
self.localPlayer.setObjectName("localPlayer")
self.localOutput = QAudioOutput()
self.localOutput.setDevice(self.localDevice)
self.localPlayer.setAudioOutput(self.localOutput)
if self.virtualDevice:
self.virtualPlayer = QMediaPlayer()
self.virtualPlayer.setObjectName("virtualPlayer")
self.virtualOutput = QAudioOutput()
self.virtualOutput.setVolume(1.0)
self.virtualOutput.setDevice(self.virtualDevice)
self.virtualPlayer.setAudioOutput(self.virtualOutput)
#
# Connections
#
self.localPlayer.errorOccurred.connect(self.mediaError)
self.localPlayer.mediaStatusChanged.connect(self.mediaStatus)
self.localPlayer.playbackStateChanged.connect(self.playbackState)
if self.virtualDevice:
self.virtualPlayer.errorOccurred.connect(self.mediaError)
self.virtualPlayer.mediaStatusChanged.connect(self.mediaStatus)
self.virtualPlayer.playbackStateChanged.connect(self.playbackState)
@pyqtSlot()
def alert(self) -> None:
self.alertEffect.play()
return
@pyqtSlot(QMediaPlayer.Error, str)
def mediaError(self, error: QMediaPlayer.Error, string: str) -> None:
print(error)
print(str)
return
@pyqtSlot(QMediaPlayer.MediaStatus)
def mediaStatus(self, status: QMediaPlayer.MediaStatus) -> None:
if status == QMediaPlayer.MediaStatus.LoadedMedia:
player: Optional[QMediaPlayer] = cast(QMediaPlayer, self.sender())
assert player is not None
player.play()
return
@pyqtSlot(QMediaPlayer.PlaybackState)
def playbackState(self, state: QMediaPlayer.PlaybackState) -> None:
return
#
# Communications slots
#
@pyqtSlot()
def soundAlert(self) -> None:
self.alertEffect.play()
return
@pyqtSlot(str)
def playSound(self, url: str) -> None:
src = QUrl(url)
if not self.localPlayer.audioOutput():
self.localPlayer.setAudioOutput(self.localOutput)
self.localPlayer.setSource(src)
self.localPlayer.setPosition(0)
if (
self.localPlayer.mediaStatus()
== QMediaPlayer.MediaStatus.LoadedMedia
):
self.localPlayer.play()
if not self.virtualDevice:
return
self.virtualPlayer.setSource(src)
self.virtualPlayer.setPosition(0)
if not self.virtualPlayer.audioOutput():
self.virtualPlayer.setAudioOutput(self.virtualOutput)
if (
self.virtualPlayer.mediaStatus()
== QMediaPlayer.MediaStatus.LoadedMedia
):
self.virtualPlayer.play()
return