QMediaPlayer version. Not working

audio_player.py

@@ -0,0 +1,68 @@
+import os
+import sys
+                             
+from PyQt5.QtCore import QUrl, QFileInfo
+from PyQt5.QtMultimedia import QMediaContent, QMediaPlayer
+
+
+class AudioPlayer(object):
+    def __init__(self, play, pause, stop, volume, audio_progress):
+        self.play = play
+        self.pause = pause
+        self.stop = stop
+        self.volume = volume
+        self.audio_progress = audio_progress
+        self.audio_file = None
+        self.player = QMediaPlayer()
+        self.player.setVolume(51)
+        self.player.durationChanged.connect(self.set_max_progress_bar)
+        self.player.positionChanged.connect(self.set_progress_bar)
+        self.play.clicked.connect(self.audio)
+        self.pause.clicked.connect(self.pause_audio)
+        self.stop.clicked.connect(self.stop_audio)
+        self.player.stateChanged.connect(self.reset_audio_widget)
+        self.volume.valueChanged.connect(self.set_volume)
+
+    def set_volume(self):
+        self.player.setVolume(self.volume.value())
+
+    def reset_audio_widget(self):
+        if self.player.state() == QMediaPlayer.StoppedState:
+            self.audio_progress.setValue(0)
+            self.volume.setValue(51)
+            self.pause.setEnabled(False)
+            self.stop.setEnabled(False)
+
+    def set_max_progress_bar(self):
+        print(self.player.duration())
+        self.audio_progress.setMaximum(self.player.duration())
+
+    def set_progress_bar(self):
+        print(self.player.position())
+        self.audio_progress.setValue(self.player.position())
+
+    def set_media_player(self):
+        self.player.setMedia(QMediaContent(self.audio_file))
+
+    def set_audio_player(self, fname):
+        self.reset_audio_widget()
+        self.play.setEnabled(False)
+        full_name = os.path.join('Data', 'Audio', fname + '.mp3')
+        if QFileInfo(full_name).exists():
+            print('exists')
+            self.play.setEnabled(True)
+            self.audio_file = QUrl.fromLocalFile(full_name)
+            self.set_media_player()
+        else:
+            print('not exists')
+
+    def audio(self):
+        self.player.play()
+        self.stop.setEnabled(True)
+        self.pause.setEnabled(True)
+
+    def stop_audio(self):
+        self.player.stop()
+
+    def pause_audio(self):
+        self.player.pause()