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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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  • 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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