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Reinstall Qt5 with QtMultimedia using Ubuntu Mate

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  • SGaistS SGaist

    You can install libavcodec-dev and friends for ffmpeg inclusion.

    As for dbus, the dbus dev package.

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    Xenoshell
    wrote on last edited by Xenoshell
    #24

    @SGaist i installed your suggested packages and now output is:

    Note: Also available for Linux: linux-clang linux-icc
    
    Note: Dropped compiler flags '-pthread' when detecting library 'glib'.
    
    Note: Disabling X11 Accessibility Bridge: D-Bus or AT-SPI is missing.
    
    Note: Dropped compiler flags '-pthread' when detecting library 'gstreamer'.
    
    Note: Dropped compiler flags '-pthread' when detecting library 'gstreamer_app'.
    
    ERROR: Feature 'system-ffmpeg' was enabled, but the pre-condition 'libs.ffmpeg && features.system-opus && features.system-webp' failed.
    
    

    @Jsulm i dont want to install ffmpeg from source. I just installed already the package and the error still occurs and i just googled the problem and the solution was to install from source

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    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #25

      Check the logs for the related errors. You can also use the -v option to get a more verbose output of the configuration process.

      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

        Check the logs for the related errors. You can also use the -v option to get a more verbose output of the configuration process.

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        Xenoshell
        wrote on last edited by
        #26

        @SGaist I think i found the relevant piece of information in config.log

        looking for library ffmpeg
        Trying source 0 (type pkgConfig) of library ffmpeg ...
        + /usr/bin/pkg-config --exists --silence-errors libavcodec libavformat libavutil
        pkg-config did not find package.
          => source produced no result.
        test config.qtwebengine.libraries.ffmpeg FAILED
        executing config test ninja
        Building own ninja
        test config.qtwebengine.tests.ninja FAILED
        looking for library opus
        Trying source 0 (type pkgConfig) of library opus ...
        + /usr/bin/pkg-config --exists --silence-errors opus
        pkg-config did not find package.
          => source produced no result.
        test config.qtwebengine.libraries.opus FAILED
        executing config test re2
        + cd /home/blz/Downloads/qt-everywhere-opensource-src-5.9.3/config.tests/re2 && /home/blz/Downloads/qt-everywhere-opensource-src-5.9.3/qtbase/bin/qmake "CONFIG -= qt debug_and_release app_bundle lib_bundle" "CONFIG += shared use_gold_linker warn_off console single_arch" /home/blz/Downloads/qt-everywhere-opensource-src-5.9.3/qtwebengine/config.tests/re2
        + cd /home/blz/Downloads/qt-everywhere-opensource-src-5.9.3/config.tests/re2 && MAKEFLAGS= /usr/bin/make clean && MAKEFLAGS= /usr/bin/make
        > rm -f re2.o
        > rm -f *~ core *.core
        > g++ -c -pipe -O2 -std=gnu++11 -w -fPIC  -I/home/blz/Downloads/qt-everywhere-opensource-src-5.9.3/qtwebengine/config.tests/re2 -I. -I/home/blz/Downloads/qt-everywhere-opensource-src-5.9.3/qtbase/mkspecs/linux-g++ -o re2.o /home/blz/Downloads/qt-everywhere-opensource-src-5.9.3/qtwebengine/config.tests/re2/re2.cpp
        > /home/blz/Downloads/qt-everywhere-opensource-src-5.9.3/qtwebengine/config.tests/re2/re2.cpp:29:21: fatal error: re2/re2.h: No such file or directory
        > compilation terminated.
        > Makefile:1021: recipe for target 're2.o' failed
        > make: *** [re2.o] Error 1
        test config.qtwebengine.tests.re2 FAILED
        looking for library webp
        Trying source 0 (type pkgConfig) of library webp ...
        + /usr/bin/pkg-config --exists --silence-errors libwebp libwebpdemux
        pkg-config did not find package.
          => source produced no result.
        test config.qtwebengine.libraries.webp FAILED
        
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        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on 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

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            Xenoshell
            wrote on 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

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            • SGaistS SGaist

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

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              Xenoshell
              wrote on 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.

              JonBJ 1 Reply Last reply
              0
              • X Xenoshell

                @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.

                JonBJ Offline
                JonBJ Offline
                JonB
                wrote on 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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                • SGaistS Offline
                  SGaistS Offline
                  SGaist
                  Lifetime Qt Champion
                  wrote on 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

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                  • SGaistS SGaist

                    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 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

                    jsulmJ 1 Reply Last reply
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                    • X Xenoshell

                      @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

                      jsulmJ Online
                      jsulmJ Online
                      jsulm
                      Lifetime Qt Champion
                      wrote on 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

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                      • jsulmJ jsulm

                        @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 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 last edited by
                          #35

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

                          jsulmJ 1 Reply Last reply
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                          • X Xenoshell

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

                            jsulmJ Online
                            jsulmJ Online
                            jsulm
                            Lifetime Qt Champion
                            wrote on last edited by
                            #36

                            @Xenoshell make install ?

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

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                            • jsulmJ jsulm

                              @Xenoshell make install ?

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                              Xenoshell
                              wrote on last edited by
                              #37

                              @jsulm yeah already did that

                              jsulmJ 1 Reply Last reply
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                              • X Xenoshell

                                @jsulm yeah already did that

                                jsulmJ Online
                                jsulmJ Online
                                jsulm
                                Lifetime Qt Champion
                                wrote on 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

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                                • jsulmJ jsulm

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

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                                  Xenoshell
                                  wrote on 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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                                  • SGaistS Offline
                                    SGaistS Offline
                                    SGaist
                                    Lifetime Qt Champion
                                    wrote on 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
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                                    • SGaistS SGaist

                                      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 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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                                      • SGaistS Offline
                                        SGaistS Offline
                                        SGaist
                                        Lifetime Qt Champion
                                        wrote on 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
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                                        • SGaistS SGaist

                                          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 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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