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Problem with Qt Multimedia

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c++multimediaqmediaplayerlogoutqt 5.8
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  • SGaistS SGaist

    What GStreamer package did you install ?

    6 Offline
    6 Offline
    6EQUJ5
    wrote on last edited by 6EQUJ5
    #44

    @SGaist I didn't install GStreamer. How to install? Specific instructions please the official GStreamer site doesn't help much at all for Debian.

    @KhoaTran-Programmer Firstly, the commands to check if GStreamer is installed doesn't work. How to install? Specifically. The official GStreamer site doesn't help at all for Debian. Also, I would want to play MP4, MP3, AVI, WMV, etc. All those common ones. Doesn't QMediaPlayer support most common ones?

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    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by SGaist
      #45

      Because it's not their role. Use your distribution tools to install GStreamer.

      Specifically, apt-cache search to see what package are installed and apt-get install to install what you want.

      In your case, libgstreamer1.0-dev as well as all the 1.0 plugins packages.

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

      6 1 Reply Last reply
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      • SGaistS SGaist

        Because it's not their role. Use your distribution tools to install GStreamer.

        Specifically, apt-cache search to see what package are installed and apt-get install to install what you want.

        In your case, libgstreamer1.0-dev as well as all the 1.0 plugins packages.

        6 Offline
        6 Offline
        6EQUJ5
        wrote on last edited by
        #46

        @SGaist I did that and the same error happens.

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        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #47

          Can you play that file with the gstreamer tools directly ?

          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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          • SGaistS SGaist

            Can you play that file with the gstreamer tools directly ?

            6 Offline
            6 Offline
            6EQUJ5
            wrote on last edited by
            #48

            @SGaist How would I do that?

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            • SGaistS Offline
              SGaistS Offline
              SGaist
              Lifetime Qt Champion
              wrote on last edited by
              #49

              gst-play-1.0 your_video_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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              • SGaistS SGaist

                gst-play-1.0 your_video_file

                6 Offline
                6 Offline
                6EQUJ5
                wrote on last edited by 6EQUJ5
                #50

                @SGaist The command doesn't exist. Even though I installed libgstreamer1.0-dev.

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                • SGaistS Offline
                  SGaistS Offline
                  SGaist
                  Lifetime Qt Champion
                  wrote on last edited by
                  #51

                  That's the development package to be able to use the library in your own projects. You need to install the GStreamer tools.

                  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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                  • SGaistS SGaist

                    That's the development package to be able to use the library in your own projects. You need to install the GStreamer tools.

                    6 Offline
                    6 Offline
                    6EQUJ5
                    wrote on last edited by
                    #52

                    @SGaist What package do I need to install for the GStreamer tools?

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                    • SGaistS Offline
                      SGaistS Offline
                      SGaist
                      Lifetime Qt Champion
                      wrote on last edited by
                      #53

                      Please learn to use the tools from your distribution apt-cache search gstreamer | grep tools.

                      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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                      • SGaistS SGaist

                        Please learn to use the tools from your distribution apt-cache search gstreamer | grep tools.

                        6 Offline
                        6 Offline
                        6EQUJ5
                        wrote on last edited by
                        #54

                        @SGaist I installed all the packages that came up with that command. gst-play-1.0 still doesn't work.

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                        • SGaistS Offline
                          SGaistS Offline
                          SGaist
                          Lifetime Qt Champion
                          wrote on last edited by
                          #55

                          What doesn't work ?

                          You can't read the file using the command ?

                          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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                          • SGaistS SGaist

                            What doesn't work ?

                            You can't read the file using the command ?

                            6 Offline
                            6 Offline
                            6EQUJ5
                            wrote on last edited by
                            #56

                            @SGaist The command still doesn't exist according to the terminal even with sudo.

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                            • SGaistS Offline
                              SGaistS Offline
                              SGaist
                              Lifetime Qt Champion
                              wrote on last edited by
                              #57

                              Seriously, did you even try to search where that file could be found ?

                              In this case it's the package gstreamer1.0-plugins-base-apps and the tools package is a dependency of that one.

                              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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                              • SGaistS SGaist

                                Seriously, did you even try to search where that file could be found ?

                                In this case it's the package gstreamer1.0-plugins-base-apps and the tools package is a dependency of that one.

                                6 Offline
                                6 Offline
                                6EQUJ5
                                wrote on last edited by
                                #58

                                @SGaist I'm sorry. I may be at least an amateur programmer, but I'm definitely not a Linux expert, so I lack knowledge. I tried googling to get gst-play-1.0 to work but came up with nothing.

                                Installing gstreamer1.0-plugins-base-apps allowed me to use the gst-play-1.0 command. But, when I try to play a video file (MP4) the same thing happens! I get logged out!

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                                • SGaistS Offline
                                  SGaistS Offline
                                  SGaist
                                  Lifetime Qt Champion
                                  wrote on last edited by
                                  #59

                                  Then you have determined that it's not a Qt problem. There's something fishy going on with your machine.

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

                                  6 1 Reply Last reply
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                                  • SGaistS SGaist

                                    Then you have determined that it's not a Qt problem. There's something fishy going on with your machine.

                                    6 Offline
                                    6 Offline
                                    6EQUJ5
                                    wrote on last edited by 6EQUJ5
                                    #60

                                    @SGaist It works fine in Windows 10 though. What could possibly be wrong with Debian Linux?

                                    jsulmJ 1 Reply Last reply
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                                    • SGaistS Offline
                                      SGaistS Offline
                                      SGaist
                                      Lifetime Qt Champion
                                      wrote on last edited by
                                      #61

                                      You are comparing apple to oranges. Both are completely different OSs with completely different multimedia backends.

                                      I don't know what is going on with your Debian but you sure have something either misconfigured or buggy. However, it's not something Qt related. You should check with the Debian folks.

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

                                      6 1 Reply Last reply
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                                      • 6 6EQUJ5

                                        @SGaist It works fine in Windows 10 though. What could possibly be wrong with Debian Linux?

                                        jsulmJ Offline
                                        jsulmJ Offline
                                        jsulm
                                        Lifetime Qt Champion
                                        wrote on last edited by
                                        #62

                                        @6EQUJ5 I would guess bad graphics driver.
                                        You could check the output of dmesg command. In general you should ask this question in a Debian forum or mailing list and attach information about your system (especially graphics hardware).

                                        https://forum.qt.io/topic/113070/qt-code-of-conduct

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                                        • SGaistS SGaist

                                          You are comparing apple to oranges. Both are completely different OSs with completely different multimedia backends.

                                          I don't know what is going on with your Debian but you sure have something either misconfigured or buggy. However, it's not something Qt related. You should check with the Debian folks.

                                          6 Offline
                                          6 Offline
                                          6EQUJ5
                                          wrote on last edited by
                                          #63

                                          @SGaist I will do that.

                                          @jsulm The output of sudo dmesg is here: https://pastebin.com/VY243fPh

                                          Also, I will ask for help on Debian mailing list/forum with the output.

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