<![CDATA[Problem while playing songs after deployment]]>Hi everyone,

I made an application that play diverses song using Qt 5.15.2 on Windows. It works well using QT IDE and now I want to use the executable as a standalone to deploy it on other platforms. My program use the following QT class for play songs: QMediaPlaylist and QMediaPlayer.

I created a dedicated folder containing:

  • platforms/qwindows.dll
  • audio/qtaudio_windows.dll
  • mediaservice/dsengine.dll
  • mediaservice/qtmedia_audioengine.dll
  • playlistformats/qtmultimedia_m3u.dll
  • myProgram.exe
  • libgcc_s_seh-1.dll
  • libstdc++-6.dll
  • libwinpthread-1.dll
  • Qt5Core.dll
  • Qt5Gui.dll
  • Qt5Multimedia.dll
  • Qt5MultimediaQuick.dll
  • Qt5MultimediaWidgets.dll
  • Qt5Network.dll
  • Qt5OpenGL.dll
  • Qt5Widgets.dll

The executable run well but each time I need to play a sound, it doesn't work (no sounds) and it crashes after a while.

Any idea on how to solve this ?

Thanks !

PS : right now I testing this on the same platform where I have developed the code

]]>https://forum.qt.io/topic/131996/problem-while-playing-songs-after-deploymentRSS for NodeMon, 03 Aug 2026 02:21:08 GMTMon, 15 Nov 2021 10:51:08 GMT60<![CDATA[Reply to Problem while playing songs after deployment on Tue, 16 Nov 2021 09:05:41 GMT]]>OK after thinking about the possibilities, I decided to remake a part of my code to include the audio player into the main class instead of a thread.

So now it works.

]]>https://forum.qt.io/post/690226https://forum.qt.io/post/690226Tue, 16 Nov 2021 09:05:41 GMT<![CDATA[Reply to Problem while playing songs after deployment on Mon, 15 Nov 2021 13:01:26 GMT]]>@CLBSII said in Problem while playing songs after deployment:

I had to put my audio player in a Thread. Maybe it has something to do with this ?

How did you do this?
Are you sure all class instances used by your player are running in the right thread?

]]>https://forum.qt.io/post/690078https://forum.qt.io/post/690078Mon, 15 Nov 2021 13:01:26 GMT<![CDATA[Reply to Problem while playing songs after deployment on Mon, 15 Nov 2021 11:43:27 GMT]]>@CLBSII Then there might be an issue, yes.

]]>https://forum.qt.io/post/690071https://forum.qt.io/post/690071Mon, 15 Nov 2021 11:43:27 GMT<![CDATA[Reply to Problem while playing songs after deployment on Mon, 15 Nov 2021 11:36:21 GMT]]>@artwaw ok I tried this in a new folder. It added me a lot a new files, but when I launch the executable, the problem remains the same.

But maybe there is something to do with my code: for operational reasons, I had to put my audio player in a Thread. Maybe it has something to do with this ?

I say that because I tried to do a simple QT application witch just play a song, and it works properly using windeployqt.

]]>https://forum.qt.io/post/690070https://forum.qt.io/post/690070Mon, 15 Nov 2021 11:36:21 GMT<![CDATA[Reply to Problem while playing songs after deployment on Mon, 15 Nov 2021 10:57:31 GMT]]>@CLBSII Please try to run windeployqt against your application and then try? In that dedicated folder of yours.

]]>https://forum.qt.io/post/690068https://forum.qt.io/post/690068Mon, 15 Nov 2021 10:57:31 GMT