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Deplaying an application with plugin

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  • T Offline
    T Offline
    Toxiik
    wrote on last edited by
    #1

    Hello, I have realised an application using QtMultimedia. When I test it on debug mode all works fine, but not in release mode. I have the following error :

    defaultServiceProvider::requestService(): no service found for - "org.qt-project.qt.mediaplayer"

    So I search for the error an I find that the plugin mediaservices have not been loaded,
    I have created a subdirectory named plugins and i have put the mediaservice into it. But always the same error.
    How could i fix that?

    ps : sorry for my english i'm french

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    • E Offline
      E Offline
      euchkatzl
      wrote on last edited by
      #2

      did you do all the things mentioned here ?

      http://qt-project.org/forums/viewthread/29185

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      • T Offline
        T Offline
        Toxiik
        wrote on last edited by
        #3

        No because I don't know how to do this.
        I have search for directshow.pro in my Qt folder but i did not find it.

        also for "recompile the plugin." I have to recompile it using Qt creator? or manually?

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        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #4

          Hi,

          First thing to check is this fine "wiki entry":http://qt-project.org/wiki/Deploy_an_Application_on_Windows to ensure you are starting the deployment right.

          Once that's done, and if still fails, then start your application from the command line with QT_DEBUG_PLUGINS=1 and see what goes wrong

          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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          • T Offline
            T Offline
            Toxiik
            wrote on last edited by
            #5

            bq. First thing to check is this fine wiki entry [qt-project.org] to ensure you are starting the deployment right.

            I have already do this.

            And the debug mode produces the same error :
            defaultServiceProvider::requestService(): no service found for – “org.qt-project.qt.mediaplayer”

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            • SGaistS Offline
              SGaistS Offline
              SGaist
              Lifetime Qt Champion
              wrote on last edited by
              #6

              Activating that environment variable won't change the outcome, however you should analyze the output of your application to see which plugin fails and for what reason

              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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              • T Offline
                T Offline
                Toxiik
                wrote on last edited by
                #7

                I have not understand where i have to put the QT_DEBUG_PLUGINS=1 line
                Please tell me about it
                thanks

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                • JKSHJ Offline
                  JKSHJ Offline
                  JKSH
                  Moderators
                  wrote on last edited by
                  #8

                  Hi,

                  [quote author="Toxiik" date="1422875572"]I have created a subdirectory named plugins and i have put the mediaservice into it.[/quote]You should not have a subdirectory named "plugins". Go to SGaist's link again and look at the diagram carefully (replace "imageformats" with "mediaservice").

                  Qt Doc Search for browsers: forum.qt.io/topic/35616/web-browser-extension-for-improved-doc-searches

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                  • T Offline
                    T Offline
                    Toxiik
                    wrote on last edited by
                    #9

                    I have removed my subdirectory but it always don't work.
                    I have my .exe, my .dll and mediaservice
                    But always the same error

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                    • SGaistS Offline
                      SGaistS Offline
                      SGaist
                      Lifetime Qt Champion
                      wrote on last edited by
                      #10

                      Again, start your application from the command line:
                      call

                      @set QT_DEBUG_PLUGINS=1@

                      then

                      @yourapplication.exe@

                      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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                      • T Offline
                        T Offline
                        Toxiik
                        wrote on last edited by
                        #11

                        Thanks for your response, i have do that and the problem is not qtmultimedia.
                        When I run myapp.exe with the good parameter it works fine.

                        But when i associate a mp3 file with the myapp.exe and i try to run it, it fails.
                        How can i get the path of the mp3 file that i have double clicked?

                        Now i use QCoreApplication::arguments().at(1)

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                        • T Offline
                          T Offline
                          Toxiik
                          wrote on last edited by
                          #12

                          sorry for the double post, but i have resolved my problem, i have deleted all my built folder an rebuilt it and it works

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