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Unable to play a wav file with Audio component

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qt5.5.1colibri-t20
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  • SGaistS Offline
    SGaistS Offline
    SGaist
    Lifetime Qt Champion
    wrote on last edited by
    #24

    Are you sure that the plugin you modified was installed at the right location ?

    Interested in AI ? www.idiap.ch
    Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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    • zyendZ Offline
      zyendZ Offline
      zyend
      wrote on last edited by zyend
      #25

      Yes.

      It was installed under /usr/lib/qt5/plugins/audio

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      • SGaistS Offline
        SGaistS Offline
        SGaist
        Lifetime Qt Champion
        wrote on last edited by
        #26

        On your target ?

        Interested in AI ? www.idiap.ch
        Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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        • zyendZ Offline
          zyendZ Offline
          zyend
          wrote on last edited by
          #27

          Yes, of course.

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          • SGaistS Offline
            SGaistS Offline
            SGaist
            Lifetime Qt Champion
            wrote on last edited by
            #28

            How big is your audio file ?

            Interested in AI ? www.idiap.ch
            Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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            • zyendZ Offline
              zyendZ Offline
              zyend
              wrote on last edited by
              #29

              ~11 MB.

              Would you test it ?

              I have recompiled QtMultimedia without ALSA support and with PULSEAUDIO only.

              In /usr/lib/qt5/plugins/audio I have only libqtmedia_pulse.so

              Same thing when I launch my app again. libqtmedia_pulse.so plugin is loaded , and I have the same output as the one above...

              It really seems that something is wrecked under...

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              • SGaistS Offline
                SGaistS Offline
                SGaist
                Lifetime Qt Champion
                wrote on last edited by
                #30

                I likely would (and already would have done it) but I don't have such a board at hand.

                And Rulseaudio is also working correctly ? (Without using Qt)

                Interested in AI ? www.idiap.ch
                Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                • zyendZ Offline
                  zyendZ Offline
                  zyend
                  wrote on last edited by
                  #31

                  How can I test if pulseaudio is working fine ?

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                  • SGaistS Offline
                    SGaistS Offline
                    SGaist
                    Lifetime Qt Champion
                    wrote on last edited by
                    #32

                    I'd take a look at thist to check the setup.

                    Interested in AI ? www.idiap.ch
                    Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                    • V Offline
                      V Offline
                      voptiplex
                      wrote on last edited by
                      #33

                      @zyend - I know the topic is quite old, but could it be a simple explanation of a typo ?
                      You have called the Audio component:
                      id: audioPlayer
                      and then try to play with:
                      idPlayer.play()
                      I think it should be:
                      audioPlayer.play()

                      Maybe I am reading the post wrong.

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                      • zyendZ zyend

                        What do you mean exactly ?

                        Yesterday, in the main.cpp, I dumped the

                        QAudioDeviceInfo::availableDevices(QAudio::AudioOutput)
                        

                        Is that what you meant ? And yes, it dumps the same devices as with

                        aplay -L
                        
                        O Offline
                        O Offline
                        OttoRyynanen
                        wrote on last edited by
                        #34

                        @zyend
                        Although this is an old post, I ended up here Googling for the pulse audio initialization and someone else might do so too so here's important info for the solution of the problem.
                        I too ran into issue that pulseaudio was no longer running since the

                        QAudioDeviceInfo::availableDevices(QAudio::AudioOutput)
                        

                        had been dropped from the code. This call apparently starts pulseaudio daemon (among other things).
                        Returning it back fixed the issue.

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                        • SGaistS Offline
                          SGaistS Offline
                          SGaist
                          Lifetime Qt Champion
                          wrote on last edited by
                          #35

                          @OttoRyynanen Hi and welcome to devnet,

                          Thanks for sharing your findings !

                          Interested in AI ? www.idiap.ch
                          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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