main.py

import sys
from PySide6.QtWidgets import QApplication, QMainWindow, QFileDialog
from MusicWindow import Ui_MainWindow
from PySide6.QtMultimedia import QMediaPlayer, QAudioOutput
from PySide6.QtCore import QUrl, QTime
from PySide6.QtGui import QIcon


class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()

        self.muted = True

        self.ui = Ui_MainWindow()
        self.ui.setupUi(self)
        self.setWindowTitle('Music Player Application')

        self.ui.toolButtonPlay.setEnabled(False)

        self.player = QMediaPlayer()
        self.audio = QAudioOutput()

        self.audioVolumeLevel = 70
        self.player.setAudioOutput(self.audio)
        self.audio.setVolume(self.audioVolumeLevel/100)


        self.ui.actionOpen_Music.triggered.connect(self.open_music)
        self.ui.toolButtonPlay.clicked.connect(self.play_music)
        self.ui.horizontalSliderVolume.sliderMoved.connect(self.volume_slider_changed)
        self.ui.horizontalSliderVolume.setValue(self.audioVolumeLevel)
        self.ui.horizontalSliderPlay.sliderMoved.connect(self.play_slider_changed)
        self.ui.toolButtonPause.clicked.connect(self.pause_btn)
        self.ui.toolButtonStop.clicked.connect(self.stop_btn)
        self.ui.toolButtonVolume.clicked.connect(self.volume_mute)

        #connect media player signals
        self.player.positionChanged.connect(self.position_changed)
        self.player.durationChanged.connect(self.duration_changed)


    def open_music(self):
        fileName, _ = QFileDialog.getOpenFileName(self, "Open Music")

        if fileName != '':
            self.player.setSource(QUrl.fromLocalFile(fileName))
            self.ui.toolButtonPlay.setEnabled(True)

    def play_music(self):
        print('Called play music')
        if self.player.mediaStatus == QMediaPlayer.PlaybackState.PlayingState:
            self.player.pause()
        else:
            self.player.play()

    def position_changed(self, position):
        if(self.ui.horizontalSliderPlay.maximum() != self.player.duration()):
            self.ui.horizontalSliderPlay.setMaximum(self.player.duration())

        self.ui.horizontalSliderPlay.setValue(position)


        seconds = (position / 1000) % 60
        minutes = (position / 60000) % 60
        hours = (position / 2600000) % 24

        time = QTime(hours, minutes, seconds)
        self.ui.labelTimer.setText(time.toString())


    def duration_changed(self, duration):
        self.ui.horizontalSliderPlay.setRange(0, duration)


    def volume_slider_changed(self, position):
        self.audioVolumeLevel = position
        self.audio.setVolume(position/100)

    def play_slider_changed(self, position):
        self.player.setPosition(position)

    def pause_btn(self):
        self.player.pause()
    def stop_btn(self):
        self.player.stop()

    def volume_mute(self):
        if(self.muted):
            self.audio.setMuted(True)
            self.ui.horizontalSliderVolume.setValue(0)
            self.ui.toolButtonVolume.setIcon(QIcon(":/icons/mute.png"))
            self.muted = False
        else:
            self.audio.setMuted(False)
            self.ui.horizontalSliderVolume.setValue(self.audioVolumeLevel)
            self.ui.toolButtonVolume.setIcon(QIcon(":/icons/volume.png"))
            self.muted = True


app = QApplication(sys.argv)
window = MainWindow()
window.show()
sys.exit(app.exec())