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Reinstall Qt5 with QtMultimedia using Ubuntu Mate

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  • S SGaist
    19 Dec 2017, 14:21

    Install the libavformat and libavutil dev packages. Same goes for opus.

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    Xenoshell
    wrote on 20 Dec 2017, 12:37 last edited by
    #29

    @SGaist
    Oh well, here are some errors.. Should i be worried or not?

    /usr/lib/gcc/arm-linux-gnueabihf/5/../../../arm-linux-gnueabihf/crt1.o(.text+0x28): error: undefined reference to 'main'
    collect2: error: ld returned 1 exit status
    Makefile:81: recipe for target 'schema' failed
    make[4]: *** [schema] Error 1
    make[4]: Leaving directory '/home/blz/Downloads/qt-everywhere-opensource-src-5.9.3/qtxmlpatterns/examples/xmlpatterns/schema'
    Makefile:122: recipe for target 'sub-schema-make_first' failed
    make[3]: *** [sub-schema-make_first] Error 2
    make[3]: Leaving directory '/home/blz/Downloads/qt-everywhere-opensource-src-5.9.3/qtxmlpatterns/examples/xmlpatterns'
    Makefile:44: recipe for target 'sub-xmlpatterns-make_first' failed
    make[2]: *** [sub-xmlpatterns-make_first] Error 2
    make[2]: Leaving directory '/home/blz/Downloads/qt-everywhere-opensource-src-5.9.3/qtxmlpatterns/examples'
    Makefile:97: recipe for target 'sub-examples-make_first' failed
    make[1]: *** [sub-examples-make_first] Error 2
    make[1]: Leaving directory '/home/blz/Downloads/qt-everywhere-opensource-src-5.9.3/qtxmlpatterns'
    Makefile:282: recipe for target 'module-qtxmlpatterns-make_first' failed
    make: *** [module-qtxmlpatterns-make_first] Error 2
    

    I am gonna not use make install just yet, because errors and wait for your answer.

    J 1 Reply Last reply 20 Dec 2017, 12:41
    0
    • X Xenoshell
      20 Dec 2017, 12:37

      @SGaist
      Oh well, here are some errors.. Should i be worried or not?

      /usr/lib/gcc/arm-linux-gnueabihf/5/../../../arm-linux-gnueabihf/crt1.o(.text+0x28): error: undefined reference to 'main'
      collect2: error: ld returned 1 exit status
      Makefile:81: recipe for target 'schema' failed
      make[4]: *** [schema] Error 1
      make[4]: Leaving directory '/home/blz/Downloads/qt-everywhere-opensource-src-5.9.3/qtxmlpatterns/examples/xmlpatterns/schema'
      Makefile:122: recipe for target 'sub-schema-make_first' failed
      make[3]: *** [sub-schema-make_first] Error 2
      make[3]: Leaving directory '/home/blz/Downloads/qt-everywhere-opensource-src-5.9.3/qtxmlpatterns/examples/xmlpatterns'
      Makefile:44: recipe for target 'sub-xmlpatterns-make_first' failed
      make[2]: *** [sub-xmlpatterns-make_first] Error 2
      make[2]: Leaving directory '/home/blz/Downloads/qt-everywhere-opensource-src-5.9.3/qtxmlpatterns/examples'
      Makefile:97: recipe for target 'sub-examples-make_first' failed
      make[1]: *** [sub-examples-make_first] Error 2
      make[1]: Leaving directory '/home/blz/Downloads/qt-everywhere-opensource-src-5.9.3/qtxmlpatterns'
      Makefile:282: recipe for target 'module-qtxmlpatterns-make_first' failed
      make: *** [module-qtxmlpatterns-make_first] Error 2
      

      I am gonna not use make install just yet, because errors and wait for your answer.

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      JonB
      wrote on 20 Dec 2017, 12:41 last edited by
      #30

      @Xenoshell
      Just to let you know: I am the person who tried to help with your original "why I am unable to use the camera without freezing?" question!

      I see this thread is getting long, I do hope my advice to sort out your multimedia installation fully is worth it for all this compiling etc. you're doing, and not a red-herring...!!

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      0
      • S Offline
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        SGaist
        Lifetime Qt Champion
        wrote on 20 Dec 2017, 21:20 last edited by SGaist
        #31

        Don't build the tests nor the example, especially since your are cross-compiling. There's no use for that and you'll waste space, time and electricity for nothing.

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

        X 1 Reply Last reply 21 Dec 2017, 08:40
        1
        • S SGaist
          20 Dec 2017, 21:20

          Don't build the tests nor the example, especially since your are cross-compiling. There's no use for that and you'll waste space, time and electricity for nothing.

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          Xenoshell
          wrote on 21 Dec 2017, 08:40 last edited by Xenoshell
          #32

          @SGaist So are the errors now important or can i just install without worries?
          @JonB I just wanna cross out all possibilities what could be wrong

          J 1 Reply Last reply 21 Dec 2017, 08:47
          0
          • X Xenoshell
            21 Dec 2017, 08:40

            @SGaist So are the errors now important or can i just install without worries?
            @JonB I just wanna cross out all possibilities what could be wrong

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            jsulm
            Lifetime Qt Champion
            wrote on 21 Dec 2017, 08:47 last edited by
            #33

            @Xenoshell As you can see from what you posted those errors are coming from examples. As @SGaist suggested there is no need to build examples and tests (so, no these errors are not important). Use -skip to not to build examples and tests.

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

            X 1 Reply Last reply 21 Dec 2017, 08:49
            0
            • J jsulm
              21 Dec 2017, 08:47

              @Xenoshell As you can see from what you posted those errors are coming from examples. As @SGaist suggested there is no need to build examples and tests (so, no these errors are not important). Use -skip to not to build examples and tests.

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              Xenoshell
              wrote on 21 Dec 2017, 08:49 last edited by
              #34

              @jsulm yeah, since make is now finished its a little bit too late to skip the examples. But its good to know that those errors dont matter

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                Xenoshell
                wrote on 21 Dec 2017, 09:10 last edited by
                #35

                @jsulm , @JonB somehow in the qt5 folder there is no qtmultimedia. I think i am going mental

                J 1 Reply Last reply 21 Dec 2017, 09:24
                0
                • X Xenoshell
                  21 Dec 2017, 09:10

                  @jsulm , @JonB somehow in the qt5 folder there is no qtmultimedia. I think i am going mental

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                  jsulm
                  Lifetime Qt Champion
                  wrote on 21 Dec 2017, 09:24 last edited by
                  #36

                  @Xenoshell make install ?

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

                  X 1 Reply Last reply 21 Dec 2017, 09:38
                  0
                  • J jsulm
                    21 Dec 2017, 09:24

                    @Xenoshell make install ?

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                    Xenoshell
                    wrote on 21 Dec 2017, 09:38 last edited by
                    #37

                    @jsulm yeah already did that

                    J 1 Reply Last reply 21 Dec 2017, 09:40
                    0
                    • X Xenoshell
                      21 Dec 2017, 09:38

                      @jsulm yeah already did that

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                      J Offline
                      jsulm
                      Lifetime Qt Champion
                      wrote on 21 Dec 2017, 09:40 last edited by jsulm
                      #38

                      @Xenoshell Do you mean there is no libQt5Multimedia.* in lib directory and no header files?

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

                      X 1 Reply Last reply 21 Dec 2017, 09:46
                      0
                      • J jsulm
                        21 Dec 2017, 09:40

                        @Xenoshell Do you mean there is no libQt5Multimedia.* in lib directory and no header files?

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                        Xenoshell
                        wrote on 21 Dec 2017, 09:46 last edited by Xenoshell
                        #39

                        @jsulm nope in the lib folder there is only just everything else. Here is my command i used ./configure -opengl desktop -gui -widgets -gstreamer -pulseaudio -alsa -ffmpeg -dbus-linked, Do i maybe have to also add -multimedia?? I dont think there even is that command, but what do i have to do to install QtMultimedia

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                        • S Offline
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                          SGaist
                          Lifetime Qt Champion
                          wrote on 21 Dec 2017, 10:19 last edited by
                          #40

                          Are you calling configure from the top folder ?
                          If so, did you clean everything before calling configure again ?

                          As I suggest every time: use out of source builds, that way if something goes wrong or you want to use a different set of option, you can simply nuke everything or change the folder and you know for sure you start from a clean state.

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

                          X 1 Reply Last reply 21 Dec 2017, 10:31
                          0
                          • S SGaist
                            21 Dec 2017, 10:19

                            Are you calling configure from the top folder ?
                            If so, did you clean everything before calling configure again ?

                            As I suggest every time: use out of source builds, that way if something goes wrong or you want to use a different set of option, you can simply nuke everything or change the folder and you know for sure you start from a clean state.

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                            Xenoshell
                            wrote on 21 Dec 2017, 10:31 last edited by
                            #41

                            @SGaist i called configure from the top folder i got from the .tar.gz file. I just deleted config.cache before calling configure again. How would i go about cleaning everything before calling configure again? What are out of source builds?

                            1 Reply Last reply
                            0
                            • S Offline
                              S Offline
                              SGaist
                              Lifetime Qt Champion
                              wrote on 21 Dec 2017, 11:00 last edited by
                              #42

                              make distclean or make confclean

                              As the name suggests: builds that happens out of the source tree.

                              Basically:

                              mkdir /home/your_user/build_qt5
                              pushd /home/your_user/build_qt5
                              /path/to/Qt_sources/configure -nomake tests -nomake examples
                              make -j (number_of_cores * 2 + 1)
                              make install
                              popd
                              

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

                              X 1 Reply Last reply 21 Dec 2017, 11:32
                              0
                              • S SGaist
                                21 Dec 2017, 11:00

                                make distclean or make confclean

                                As the name suggests: builds that happens out of the source tree.

                                Basically:

                                mkdir /home/your_user/build_qt5
                                pushd /home/your_user/build_qt5
                                /path/to/Qt_sources/configure -nomake tests -nomake examples
                                make -j (number_of_cores * 2 + 1)
                                make install
                                popd
                                
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                                Xenoshell
                                wrote on 21 Dec 2017, 11:32 last edited by Xenoshell
                                #43

                                @SGaist Ok, is this even useful now? I mean i already installed Qt5 so isnt it a little bit too late?
                                Btw in my other post about my code are some new outputs since i installed Qt5.

                                1 Reply Last reply
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                                • S Offline
                                  S Offline
                                  SGaist
                                  Lifetime Qt Champion
                                  wrote on 21 Dec 2017, 20:28 last edited by
                                  #44

                                  It will be in the future when you'll build Qt again.

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

                                  1 Reply Last reply
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