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Reinstall Qt5 with QtMultimedia using Ubuntu Mate

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  • S Offline
    S Offline
    SGaist
    Lifetime Qt Champion
    wrote on 19 Dec 2017, 14:21 last edited by
    #27

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

    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 20 Dec 2017, 12:37
    0
    • X Offline
      X Offline
      Xenoshell
      wrote on 19 Dec 2017, 14:41 last edited by Xenoshell
      #28

      @SGaist no error anymore. Thanks for you help. I am gonna mark this solved after i ran make and make install

      1 Reply Last reply
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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.

          J Offline
          J Offline
          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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          • S Offline
            S Offline
            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

                J Offline
                J Offline
                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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                  • X Offline
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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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                      J Offline
                      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

                          J Offline
                          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?

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                                • S Offline
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                                  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.

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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

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