<![CDATA[Play multiple mp3 files with QMediaPlayer]]>Hi everybody,
I am trying to develop a software that can play sound from mp3 files, I am trying to do this with QMediaPlayer but it only plays the last file that i give him, here is my code:

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

self.player.setAudioOutput(self.audioOutput)

self.player.setSource(QUrl.fromLocalFile(“sound/001000.mp3”))

self.player.play()

while self.player.isPlaying():

time.sleep(2)

self.player.setSource(QUrl.fromLocalFile(“sound/001001.mp3”))

self.player.play()
]]>https://forum.qt.io/topic/164351/play-multiple-mp3-files-with-qmediaplayerRSS for NodeWed, 22 Apr 2026 11:28:16 GMTMon, 02 Mar 2026 07:44:59 GMT60<![CDATA[Reply to Play multiple mp3 files with QMediaPlayer on Thu, 05 Mar 2026 16:18:33 GMT]]>I found a solution, it involves in connecting the signal "playingChanged" of QMediaPlayer to a function that plays the next track.

self.player=QMediaPlayer()
self.audioOutput = QAudioOutput()
self.player.setAudioOutput(self.audioOutput)
self.player.playingChanged.connect(self.play_next)

def play_next(self):
    if self.player.playbackState()!=QMediaPlayer.PlaybackState.PlayingState:
        self.player.setSource(QUrl.fromLocalFile("next_track.mp3")) 
        self.player.play()
]]>https://forum.qt.io/post/836812https://forum.qt.io/post/836812Thu, 05 Mar 2026 16:18:33 GMT<![CDATA[Reply to Play multiple mp3 files with QMediaPlayer on Mon, 02 Mar 2026 08:44:14 GMT]]>@Mahmoud_213
I know nothing about this, but by the sound of it the Qt event loop needs to be running for stuff to play/sound? So you cannot use time.sleep(2) and then change the source I imagine? Remove that and replace with a QTimer() for 2 seconds: in the slot attached to that change the source for the player. I am guessing that is what is required.

]]>https://forum.qt.io/post/836701https://forum.qt.io/post/836701Mon, 02 Mar 2026 08:44:14 GMT