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QtMultimedia issue, missing GStreamer after configure

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  • M Offline
    M Offline
    matio
    wrote on 9 Oct 2019, 15:34 last edited by matio 10 Sept 2019, 15:36
    #1

    Hello,

    I installed a cross-compilation toolchain by following this tutorial:

    https://mechatronicsblog.com/cross-compile-and-deploy-qt-5-12-for-raspberry-pi/

    I use a Debian virtual machine for the host machine and a RaspberryPi3 for the target.

    EDIT: my Qt version is 5.12.5

    Everything works well at the compilation level. I can develop basic applications, but I need to use QtMultimedia which compiles but does not work on the RaspberryPi. (no sound no pictures for a video or mp3)

    I have this message in the QtCreator run window of a test project:

    defaultServiceProvider::requestService(): no service found for - "org.qt-project.qt.mediaplayer" qt5.12

    I have this in the config.summary file:

    Qt Multimedia:
    ALSA ................................... yes
    GStreamer 1.0 .......................... no
    GStreamer 0.10 ......................... no
    Video for Linux ........................ yes
    OpenAL ................................. yes
    PulseAudio ............................. no
    Resource Policy (libresourceqt5) ....... no
    Windows Audio Services ................. no
    DirectShow ............................. no
    Windows Media Foundation ............... no

    According to several forums, GLStreamer should be "yes".

    I installed packages on the Pi according to this tutorial:

    http://wapel.de/?p=641&fbclid=IwAR1MjlKlXg92mHDQQuPD2pJafG3M5iKuj0L84wi2xEAZ6uI2GMkqnLlieUM

    As it did not work I tried to add:

    sudo apt install libgstreamer*-dev gstreamer*-dev
    

    I feel like I have installed and done the right things. I've tried several times doing different things with clean configurations but it still doesn't work.

    Do you have any idea of what I'm doing wrong?

    Thank you for your help!

    1 Reply Last reply
    0
    • S Offline
      S Offline
      SGaist
      Lifetime Qt Champion
      wrote on 9 Oct 2019, 18:20 last edited by
      #2

      Hi and welcome to devnet,

      Did you copy your Pi root filesystem to your computer to be used as sysroot ? If so, did you sync the content after installing the dev librairies on your Pi ?

      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
      0
      • M Offline
        M Offline
        matio
        wrote on 10 Oct 2019, 02:05 last edited by
        #3

        Thanks!

        Yes I have done this with pi user and root:

        rsync -avz root@192.168.1.2:/lib sysroot
        rsync -avz root@192.168.1.2:/usr/include sysroot/usr
        rsync -avz root@192.168.1.2:/usr/lib sysroot/usr
        rsync -avz root@192.168.1.2:/opt/vc sysroot/opt

        And fixed the relative links in the sysroot with the script found here every time I added a package on the Raspberry Pi:

        https://raw.githubusercontent.com/riscv/riscv-poky/master/scripts/sysroot-relativelinks.py

        This is my configure command, maybe there is a mistake here because I don't understand everything:

        ./configure -release -opengl es2 -device linux-rasp-pi-g++ -device-option CROSS_COMPILE=~/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf- -sysroot ~/raspi/sysroot -opensource -confirm-license -skip qtwayland -skip qtlocation -skip qtscript -make libs -prefix /usr/local/qt5pi -extprefix ~/raspi/qt5pi -hostprefix ~/raspi/qt5 -no-use-gold-linker -v -no-gbm

        Thank you so much for your help!

        J 1 Reply Last reply 10 Oct 2019, 05:25
        0
        • M matio
          10 Oct 2019, 02:05

          Thanks!

          Yes I have done this with pi user and root:

          rsync -avz root@192.168.1.2:/lib sysroot
          rsync -avz root@192.168.1.2:/usr/include sysroot/usr
          rsync -avz root@192.168.1.2:/usr/lib sysroot/usr
          rsync -avz root@192.168.1.2:/opt/vc sysroot/opt

          And fixed the relative links in the sysroot with the script found here every time I added a package on the Raspberry Pi:

          https://raw.githubusercontent.com/riscv/riscv-poky/master/scripts/sysroot-relativelinks.py

          This is my configure command, maybe there is a mistake here because I don't understand everything:

          ./configure -release -opengl es2 -device linux-rasp-pi-g++ -device-option CROSS_COMPILE=~/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf- -sysroot ~/raspi/sysroot -opensource -confirm-license -skip qtwayland -skip qtlocation -skip qtscript -make libs -prefix /usr/local/qt5pi -extprefix ~/raspi/qt5pi -hostprefix ~/raspi/qt5 -no-use-gold-linker -v -no-gbm

          Thank you so much for your help!

          J Offline
          J Offline
          jsulm
          Lifetime Qt Champion
          wrote on 10 Oct 2019, 05:25 last edited by
          #4

          @matio You should check the configure log to see what exactly is missing from GStreamer

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

          M 1 Reply Last reply 10 Oct 2019, 14:36
          0
          • J jsulm
            10 Oct 2019, 05:25

            @matio You should check the configure log to see what exactly is missing from GStreamer

            M Offline
            M Offline
            matio
            wrote on 10 Oct 2019, 14:36 last edited by
            #5

            @jsulm I don't realy know what this means:

            + cd /home/debian/raspi/qt-everywhere-src-5.12.5/config.tests/gpu_vivante && /home/debian/raspi/qt-everywhere-src-5.12.5/qtbase/bin/qmake "CONFIG -= qt debug_and_release app_bundle lib_bundle" "CONFIG += shared warn_off console single_arch" "QMAKE_CFLAGS += --sysroot=/home/debian/raspi/sysroot" "QMAKE_CXXFLAGS += --sysroot=/home/debian/raspi/sysroot" "QMAKE_LFLAGS += --sysroot=/home/debian/raspi/sysroot" -early "CONFIG += cross_compile" /home/debian/raspi/qt-everywhere-src-5.12.5/qtmultimedia/config.tests/gpu_vivante
            + cd /home/debian/raspi/qt-everywhere-src-5.12.5/config.tests/gpu_vivante && MAKEFLAGS= /usr/bin/make
            > /home/debian/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf-g++ -c -pipe -marm -mfpu=vfp -mtune=arm1176jzf-s -march=armv6zk -mabi=aapcs-linux -mfloat-abi=hard --sysroot=/home/debian/raspi/sysroot --sysroot=/home/debian/raspi/sysroot -O2 -std=gnu++11 -w -fPIC  -I/home/debian/raspi/qt-everywhere-src-5.12.5/qtmultimedia/config.tests/gpu_vivante -I. -I/home/debian/raspi/qt-everywhere-src-5.12.5/qtbase/mkspecs/devices/linux-rasp-pi-g++ -o main.o /home/debian/raspi/qt-everywhere-src-5.12.5/qtmultimedia/config.tests/gpu_vivante/main.cpp
            > /home/debian/raspi/qt-everywhere-src-5.12.5/qtmultimedia/config.tests/gpu_vivante/main.cpp:32:20: error: ‘GL_VIV_YV12’ was not declared in this scope
            >  const int format = GL_VIV_YV12;
            >                     ^
            > Makefile:179 : la recette pour la cible « main.o » a échouée
            > make: *** [main.o] Erreur 1
            test config.qtmultimedia_multimedia.tests.gpu_vivante FAILED
            looking for library gstreamer_1_0
            Trying source 0 (type pkgConfig) of library gstreamer_1_0 ...
            pkg-config use disabled globally.
              => source produced no result.
            test config.qtmultimedia_multimedia.libraries.gstreamer_1_0 FAILED
            looking for library gstreamer_0_10
            Trying source 0 (type pkgConfig) of library gstreamer_0_10 ...
            pkg-config use disabled globally.
              => source produced no result.
            test config.qtmultimedia_multimedia.libraries.gstreamer_0_10 FAILED
            executing config test linux_v4l
            + cd /home/debian/raspi/qt-everywhere-src-5.12.5/config.tests/linux_v4l && /home/debian/raspi/qt-everywhere-src-5.12.5/qtbase/bin/qmake "CONFIG -= qt debug_and_release app_bundle lib_bundle" "CONFIG += shared warn_off console single_arch" "QMAKE_CFLAGS += --sysroot=/home/debian/raspi/sysroot" "QMAKE_CXXFLAGS += --sysroot=/home/debian/raspi/sysroot" "QMAKE_LFLAGS += --sysroot=/home/debian/raspi/sysroot" -early "CONFIG += cross_compile" /home/debian/raspi/qt-everywhere-src-5.12.5/qtmultimedia/config.tests/linux_v4l
            + cd /home/debian/raspi/qt-everywhere-src-5.12.5/config.tests/linux_v4l && MAKEFLAGS= /usr/bin/make
            > /home/debian/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf-g++ -c -pipe -marm -mfpu=vfp -mtune=arm1176jzf-s -march=armv6zk -mabi=aapcs-linux -mfloat-abi=hard --sysroot=/home/debian/raspi/sysroot --sysroot=/home/debian/raspi/sysroot -O2 -std=gnu++11 -w -fPIC  -I/home/debian/raspi/qt-everywhere-src-5.12.5/qtmultimedia/config.tests/linux_v4l -I. -I/home/debian/raspi/qt-everywhere-src-5.12.5/qtbase/mkspecs/devices/linux-rasp-pi-g++ -o main.o /home/debian/raspi/qt-everywhere-src-5.12.5/qtmultimedia/config.tests/linux_v4l/main.cpp
            > /home/debian/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf-g++ -mfloat-abi=hard --sysroot=/home/debian/raspi/sysroot --sysroot=/home/debian/raspi/sysroot -Wl,-O1 -Wl,-rpath-link,/home/debian/raspi/sysroot/opt/vc/lib -Wl,-rpath-link,/home/debian/raspi/sysroot/usr/lib/arm-linux-gnueabihf -Wl,-rpath-link,/home/debian/raspi/sysroot/lib/arm-linux-gnueabihf -o linux_v4l main.o      
            test config.qtmultimedia_multimedia.tests.linux_v4l succeeded
            looking for library openal
            Trying source 0 (type pkgConfig) of library openal ...
            pkg-config use disabled globally.
              => source produced no result.
            Trying source 1 (type inline) of library openal ...
              => source failed condition 'config.win32'.
            Trying source 2 (type inline) of library openal ...
              => source failed condition 'config.darwin'.
            Trying source 3 (type inline) of library openal ...
            + cd /home/debian/raspi/qt-everywhere-src-5.12.5/config.tests/openal && /home/debian/raspi/qt-everywhere-src-5.12.5/qtbase/bin/qmake "CONFIG -= qt debug_and_release app_bundle lib_bundle" "CONFIG += shared warn_off console single_arch" "QMAKE_CFLAGS += --sysroot=/home/debian/raspi/sysroot" "QMAKE_CXXFLAGS += --sysroot=/home/debian/raspi/sysroot" "QMAKE_LFLAGS += --sysroot=/home/debian/raspi/sysroot" -early "CONFIG += cross_compile" 'QMAKE_USE += openal' 'QMAKE_LIBS_OPENAL = /home/debian/raspi/sysroot/usr/lib/arm-linux-gnueabihf/libopenal.so' /home/debian/raspi/qt-everywhere-src-5.12.5/qtmultimedia/config.tests/openal
            + cd /home/debian/raspi/qt-everywhere-src-5.12.5/config.tests/openal && MAKEFLAGS= /usr/bin/make
            > /home/debian/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf-g++ -c -pipe -marm -mfpu=vfp -mtune=arm1176jzf-s -march=armv6zk -mabi=aapcs-linux -mfloat-abi=hard --sysroot=/home/debian/raspi/sysroot --sysroot=/home/debian/raspi/sysroot -O2 -std=gnu++11 -w -fPIC  -I/home/debian/raspi/qt-everywhere-src-5.12.5/qtmultimedia/config.tests/openal -I. -I/home/debian/raspi/qt-everywhere-src-5.12.5/qtbase/mkspecs/devices/linux-rasp-pi-g++ -o main.o /home/debian/raspi/qt-everywhere-src-5.12.5/qtmultimedia/config.tests/openal/main.cpp
            > /home/debian/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf-g++ -mfloat-abi=hard --sysroot=/home/debian/raspi/sysroot --sysroot=/home/debian/raspi/sysroot -Wl,-O1 -Wl,-rpath-link,/home/debian/raspi/sysroot/opt/vc/lib -Wl,-rpath-link,/home/debian/raspi/sysroot/usr/lib/arm-linux-gnueabihf -Wl,-rpath-link,/home/debian/raspi/sysroot/lib/arm-linux-gnueabihf -o openal main.o   /home/debian/raspi/sysroot/usr/lib/arm-linux-gnueabihf/libopenal.so   
             => source accepted.
            test config.qtmultimedia_multimedia.libraries.openal succeeded
            looking for library pulseaudio
            Trying source 0 (type pkgConfig) of library pulseaudio ...
            pkg-config use disabled globally.
              => source produced no result.
            test config.qtmultimedia_multimedia.libraries.pulseaudio FAILED
            looking for library libresourceqt5
            Trying source 0 (type pkgConfig) of library libresourceqt5 ...
            pkg-config use disabled globally.
              => source produced no result.
            test config.qtmultimedia_multimedia.libraries.libresourceqt5 FAILED
            executing config test libclang
            test config.qttools_qdoc.tests.libclang FAILED
            executing config test webengine-alsa
            

            But I also found something interesting at the end of this page:

            https://wiki.qt.io/RaspberryPi2EGLFS?fbclid=IwAR14XF1aB41xqTVaZVKE_eddyezT1tSZcgM-zPmvyDIyEvUgvTSMPyZUT8A

            "Unfortunately the GStreamer-based multimedia stuff is not quite usable at the time of writing - accelerated video works only sometimes (and with glitches), while the camera is just broken."

            What do you think about this? Is it a good idea to use QtMultimedia or is there a better way to play video on a Qt application with something like libvlc?

            M 1 Reply Last reply 10 Oct 2019, 14:48
            0
            • M matio
              10 Oct 2019, 14:36

              @jsulm I don't realy know what this means:

              + cd /home/debian/raspi/qt-everywhere-src-5.12.5/config.tests/gpu_vivante && /home/debian/raspi/qt-everywhere-src-5.12.5/qtbase/bin/qmake "CONFIG -= qt debug_and_release app_bundle lib_bundle" "CONFIG += shared warn_off console single_arch" "QMAKE_CFLAGS += --sysroot=/home/debian/raspi/sysroot" "QMAKE_CXXFLAGS += --sysroot=/home/debian/raspi/sysroot" "QMAKE_LFLAGS += --sysroot=/home/debian/raspi/sysroot" -early "CONFIG += cross_compile" /home/debian/raspi/qt-everywhere-src-5.12.5/qtmultimedia/config.tests/gpu_vivante
              + cd /home/debian/raspi/qt-everywhere-src-5.12.5/config.tests/gpu_vivante && MAKEFLAGS= /usr/bin/make
              > /home/debian/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf-g++ -c -pipe -marm -mfpu=vfp -mtune=arm1176jzf-s -march=armv6zk -mabi=aapcs-linux -mfloat-abi=hard --sysroot=/home/debian/raspi/sysroot --sysroot=/home/debian/raspi/sysroot -O2 -std=gnu++11 -w -fPIC  -I/home/debian/raspi/qt-everywhere-src-5.12.5/qtmultimedia/config.tests/gpu_vivante -I. -I/home/debian/raspi/qt-everywhere-src-5.12.5/qtbase/mkspecs/devices/linux-rasp-pi-g++ -o main.o /home/debian/raspi/qt-everywhere-src-5.12.5/qtmultimedia/config.tests/gpu_vivante/main.cpp
              > /home/debian/raspi/qt-everywhere-src-5.12.5/qtmultimedia/config.tests/gpu_vivante/main.cpp:32:20: error: ‘GL_VIV_YV12’ was not declared in this scope
              >  const int format = GL_VIV_YV12;
              >                     ^
              > Makefile:179 : la recette pour la cible « main.o » a échouée
              > make: *** [main.o] Erreur 1
              test config.qtmultimedia_multimedia.tests.gpu_vivante FAILED
              looking for library gstreamer_1_0
              Trying source 0 (type pkgConfig) of library gstreamer_1_0 ...
              pkg-config use disabled globally.
                => source produced no result.
              test config.qtmultimedia_multimedia.libraries.gstreamer_1_0 FAILED
              looking for library gstreamer_0_10
              Trying source 0 (type pkgConfig) of library gstreamer_0_10 ...
              pkg-config use disabled globally.
                => source produced no result.
              test config.qtmultimedia_multimedia.libraries.gstreamer_0_10 FAILED
              executing config test linux_v4l
              + cd /home/debian/raspi/qt-everywhere-src-5.12.5/config.tests/linux_v4l && /home/debian/raspi/qt-everywhere-src-5.12.5/qtbase/bin/qmake "CONFIG -= qt debug_and_release app_bundle lib_bundle" "CONFIG += shared warn_off console single_arch" "QMAKE_CFLAGS += --sysroot=/home/debian/raspi/sysroot" "QMAKE_CXXFLAGS += --sysroot=/home/debian/raspi/sysroot" "QMAKE_LFLAGS += --sysroot=/home/debian/raspi/sysroot" -early "CONFIG += cross_compile" /home/debian/raspi/qt-everywhere-src-5.12.5/qtmultimedia/config.tests/linux_v4l
              + cd /home/debian/raspi/qt-everywhere-src-5.12.5/config.tests/linux_v4l && MAKEFLAGS= /usr/bin/make
              > /home/debian/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf-g++ -c -pipe -marm -mfpu=vfp -mtune=arm1176jzf-s -march=armv6zk -mabi=aapcs-linux -mfloat-abi=hard --sysroot=/home/debian/raspi/sysroot --sysroot=/home/debian/raspi/sysroot -O2 -std=gnu++11 -w -fPIC  -I/home/debian/raspi/qt-everywhere-src-5.12.5/qtmultimedia/config.tests/linux_v4l -I. -I/home/debian/raspi/qt-everywhere-src-5.12.5/qtbase/mkspecs/devices/linux-rasp-pi-g++ -o main.o /home/debian/raspi/qt-everywhere-src-5.12.5/qtmultimedia/config.tests/linux_v4l/main.cpp
              > /home/debian/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf-g++ -mfloat-abi=hard --sysroot=/home/debian/raspi/sysroot --sysroot=/home/debian/raspi/sysroot -Wl,-O1 -Wl,-rpath-link,/home/debian/raspi/sysroot/opt/vc/lib -Wl,-rpath-link,/home/debian/raspi/sysroot/usr/lib/arm-linux-gnueabihf -Wl,-rpath-link,/home/debian/raspi/sysroot/lib/arm-linux-gnueabihf -o linux_v4l main.o      
              test config.qtmultimedia_multimedia.tests.linux_v4l succeeded
              looking for library openal
              Trying source 0 (type pkgConfig) of library openal ...
              pkg-config use disabled globally.
                => source produced no result.
              Trying source 1 (type inline) of library openal ...
                => source failed condition 'config.win32'.
              Trying source 2 (type inline) of library openal ...
                => source failed condition 'config.darwin'.
              Trying source 3 (type inline) of library openal ...
              + cd /home/debian/raspi/qt-everywhere-src-5.12.5/config.tests/openal && /home/debian/raspi/qt-everywhere-src-5.12.5/qtbase/bin/qmake "CONFIG -= qt debug_and_release app_bundle lib_bundle" "CONFIG += shared warn_off console single_arch" "QMAKE_CFLAGS += --sysroot=/home/debian/raspi/sysroot" "QMAKE_CXXFLAGS += --sysroot=/home/debian/raspi/sysroot" "QMAKE_LFLAGS += --sysroot=/home/debian/raspi/sysroot" -early "CONFIG += cross_compile" 'QMAKE_USE += openal' 'QMAKE_LIBS_OPENAL = /home/debian/raspi/sysroot/usr/lib/arm-linux-gnueabihf/libopenal.so' /home/debian/raspi/qt-everywhere-src-5.12.5/qtmultimedia/config.tests/openal
              + cd /home/debian/raspi/qt-everywhere-src-5.12.5/config.tests/openal && MAKEFLAGS= /usr/bin/make
              > /home/debian/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf-g++ -c -pipe -marm -mfpu=vfp -mtune=arm1176jzf-s -march=armv6zk -mabi=aapcs-linux -mfloat-abi=hard --sysroot=/home/debian/raspi/sysroot --sysroot=/home/debian/raspi/sysroot -O2 -std=gnu++11 -w -fPIC  -I/home/debian/raspi/qt-everywhere-src-5.12.5/qtmultimedia/config.tests/openal -I. -I/home/debian/raspi/qt-everywhere-src-5.12.5/qtbase/mkspecs/devices/linux-rasp-pi-g++ -o main.o /home/debian/raspi/qt-everywhere-src-5.12.5/qtmultimedia/config.tests/openal/main.cpp
              > /home/debian/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf-g++ -mfloat-abi=hard --sysroot=/home/debian/raspi/sysroot --sysroot=/home/debian/raspi/sysroot -Wl,-O1 -Wl,-rpath-link,/home/debian/raspi/sysroot/opt/vc/lib -Wl,-rpath-link,/home/debian/raspi/sysroot/usr/lib/arm-linux-gnueabihf -Wl,-rpath-link,/home/debian/raspi/sysroot/lib/arm-linux-gnueabihf -o openal main.o   /home/debian/raspi/sysroot/usr/lib/arm-linux-gnueabihf/libopenal.so   
               => source accepted.
              test config.qtmultimedia_multimedia.libraries.openal succeeded
              looking for library pulseaudio
              Trying source 0 (type pkgConfig) of library pulseaudio ...
              pkg-config use disabled globally.
                => source produced no result.
              test config.qtmultimedia_multimedia.libraries.pulseaudio FAILED
              looking for library libresourceqt5
              Trying source 0 (type pkgConfig) of library libresourceqt5 ...
              pkg-config use disabled globally.
                => source produced no result.
              test config.qtmultimedia_multimedia.libraries.libresourceqt5 FAILED
              executing config test libclang
              test config.qttools_qdoc.tests.libclang FAILED
              executing config test webengine-alsa
              

              But I also found something interesting at the end of this page:

              https://wiki.qt.io/RaspberryPi2EGLFS?fbclid=IwAR14XF1aB41xqTVaZVKE_eddyezT1tSZcgM-zPmvyDIyEvUgvTSMPyZUT8A

              "Unfortunately the GStreamer-based multimedia stuff is not quite usable at the time of writing - accelerated video works only sometimes (and with glitches), while the camera is just broken."

              What do you think about this? Is it a good idea to use QtMultimedia or is there a better way to play video on a Qt application with something like libvlc?

              M Offline
              M Offline
              matio
              wrote on 10 Oct 2019, 14:48 last edited by
              #6

              Sorry for double-post, it semmed that I haven'nt installed pkg-config on my VM...

              Now it seems to be configured properly:

              Qt Multimedia:
                ALSA ................................... yes
                GStreamer 1.0 .......................... yes
                GStreamer 0.10 ......................... no
                Video for Linux ........................ yes
                OpenAL ................................. yes
                PulseAudio ............................. yes
                Resource Policy (libresourceqt5) ....... no
                Windows Audio Services ................. no
                DirectShow ............................. no
                Windows Media Foundation ............... no
              

              Thanks for your help !

              You saved my life !

              Pablo J. RoginaP CKurduC 2 Replies Last reply 10 Oct 2019, 14:59
              1
              • M matio
                10 Oct 2019, 14:48

                Sorry for double-post, it semmed that I haven'nt installed pkg-config on my VM...

                Now it seems to be configured properly:

                Qt Multimedia:
                  ALSA ................................... yes
                  GStreamer 1.0 .......................... yes
                  GStreamer 0.10 ......................... no
                  Video for Linux ........................ yes
                  OpenAL ................................. yes
                  PulseAudio ............................. yes
                  Resource Policy (libresourceqt5) ....... no
                  Windows Audio Services ................. no
                  DirectShow ............................. no
                  Windows Media Foundation ............... no
                

                Thanks for your help !

                You saved my life !

                Pablo J. RoginaP Offline
                Pablo J. RoginaP Offline
                Pablo J. Rogina
                wrote on 10 Oct 2019, 14:59 last edited by
                #7

                @matio said in QtMultimedia issue, missing GStreamer after configure:

                You saved my life !

                Were you finally able to cross-compile Qt Multimedia with GStreamer support? If so please don't forget to mark your post as such. Thanks

                Upvote the answer(s) that helped you solve the issue
                Use "Topic Tools" button to mark your post as Solved
                Add screenshots via postimage.org
                Don't ask support requests via chat/PM. Please use the forum so others can benefit from the solution in the future

                1 Reply Last reply
                1
                • M matio
                  10 Oct 2019, 14:48

                  Sorry for double-post, it semmed that I haven'nt installed pkg-config on my VM...

                  Now it seems to be configured properly:

                  Qt Multimedia:
                    ALSA ................................... yes
                    GStreamer 1.0 .......................... yes
                    GStreamer 0.10 ......................... no
                    Video for Linux ........................ yes
                    OpenAL ................................. yes
                    PulseAudio ............................. yes
                    Resource Policy (libresourceqt5) ....... no
                    Windows Audio Services ................. no
                    DirectShow ............................. no
                    Windows Media Foundation ............... no
                  

                  Thanks for your help !

                  You saved my life !

                  CKurduC Offline
                  CKurduC Offline
                  CKurdu
                  wrote on 10 Oct 2019, 17:37 last edited by
                  #8

                  @matio said in QtMultimedia issue, missing GStreamer after configure:

                  VM

                  Hi Matio,
                  Can you play videos using Qt Multimedia with no problem? Because I didn't, it plays videos but a problematic way. I have raspberry pi 3 b+ and I use qt vlc library to work around this problem.

                  You reap what you sow it

                  M G 3 Replies Last reply 10 Oct 2019, 23:45
                  0
                  • CKurduC CKurdu
                    10 Oct 2019, 17:37

                    @matio said in QtMultimedia issue, missing GStreamer after configure:

                    VM

                    Hi Matio,
                    Can you play videos using Qt Multimedia with no problem? Because I didn't, it plays videos but a problematic way. I have raspberry pi 3 b+ and I use qt vlc library to work around this problem.

                    M Offline
                    M Offline
                    matio
                    wrote on 10 Oct 2019, 23:45 last edited by
                    #9

                    @CKurdu

                    Hi,

                    I have not tested it for now, I just managed to compile. It took a few hours...
                    But your comment seems to sadly confirm what I read here (last section of the page):

                    https://wiki.qt.io/RaspberryPi2EGLFS?fbclid=IwAR14XF1aB41xqTVaZVKE_eddyezT1tSZcgM-zPmvyDIyEvUgvTSMPyZUT8A

                    The issue seems to be relative to GStream and not solved yet.

                    I'll try as soon as possible and keep you informed about this.

                    1 Reply Last reply
                    0
                    • CKurduC CKurdu
                      10 Oct 2019, 17:37

                      @matio said in QtMultimedia issue, missing GStreamer after configure:

                      VM

                      Hi Matio,
                      Can you play videos using Qt Multimedia with no problem? Because I didn't, it plays videos but a problematic way. I have raspberry pi 3 b+ and I use qt vlc library to work around this problem.

                      M Offline
                      M Offline
                      matio
                      wrote on 11 Oct 2019, 22:38 last edited by
                      #10

                      @CKurdu

                      Hi,

                      Finaly, I can't even play videos. I can only play sounds.

                      When I compile and execute I have this mesasge:

                      CRITICAL **: gst_video_decoder_set_latency: assertion 'GST_CLOCK_TIME_IS_VALID (min_latency)' failed

                      So I will use libvlc unless you know what this error means.

                      CKurduC 1 Reply Last reply 12 Oct 2019, 07:44
                      0
                      • M matio
                        11 Oct 2019, 22:38

                        @CKurdu

                        Hi,

                        Finaly, I can't even play videos. I can only play sounds.

                        When I compile and execute I have this mesasge:

                        CRITICAL **: gst_video_decoder_set_latency: assertion 'GST_CLOCK_TIME_IS_VALID (min_latency)' failed

                        So I will use libvlc unless you know what this error means.

                        CKurduC Offline
                        CKurduC Offline
                        CKurdu
                        wrote on 12 Oct 2019, 07:44 last edited by
                        #11

                        @matio
                        I am using vlc-qt for my current project. OMXPlayer may be another solution with QProcess but I haven't tried it yet.
                        Which raspberry are you using?

                        You reap what you sow it

                        M 1 Reply Last reply 16 Oct 2019, 19:56
                        0
                        • CKurduC CKurdu
                          12 Oct 2019, 07:44

                          @matio
                          I am using vlc-qt for my current project. OMXPlayer may be another solution with QProcess but I haven't tried it yet.
                          Which raspberry are you using?

                          M Offline
                          M Offline
                          matio
                          wrote on 16 Oct 2019, 19:56 last edited by
                          #12

                          @CKurdu

                          Hi, sorry for the late answer.

                          I had issues installing vlc-qt, but suceededly install libvlc and it was what I needed finaly.

                          I'm still interested in vlc-qt if you can help me.

                          I'm using RaspberryPi 3B+

                          CKurduC 1 Reply Last reply 16 Oct 2019, 20:43
                          0
                          • M matio
                            16 Oct 2019, 19:56

                            @CKurdu

                            Hi, sorry for the late answer.

                            I had issues installing vlc-qt, but suceededly install libvlc and it was what I needed finaly.

                            I'm still interested in vlc-qt if you can help me.

                            I'm using RaspberryPi 3B+

                            CKurduC Offline
                            CKurduC Offline
                            CKurdu
                            wrote on 16 Oct 2019, 20:43 last edited by
                            #13

                            @matio
                            Hi, I didn't install vlc-qt , I installed vlc and compiled vlc-qt library. My project is not qml based. I am using a widget-based qt app and at this time I am successful.

                            I can try to help you as much as I can.

                            You reap what you sow it

                            M 1 Reply Last reply 17 Oct 2019, 07:16
                            0
                            • CKurduC CKurdu
                              16 Oct 2019, 20:43

                              @matio
                              Hi, I didn't install vlc-qt , I installed vlc and compiled vlc-qt library. My project is not qml based. I am using a widget-based qt app and at this time I am successful.

                              I can try to help you as much as I can.

                              M Offline
                              M Offline
                              matio
                              wrote on 17 Oct 2019, 07:16 last edited by
                              #14

                              @CKurdu
                              Hi!
                              Thank you for your help.

                              I followed the instructions of this page:

                              https://github.com/vlc-qt/vlc-qt/blob/master/BUILDING.md

                              But during the make step, at 93% of the compilation I have an error:

                              /usr/lib/arm-linux-gnueabihf/qt5/bin/uic: relocation error: /usr/lib/arm-linux-gnueabihf/qt5/bin/uic: symbol qt_qhash_seed, version Qt_5 not defined in file libQt5Core.so.5 with link time reference
                              AUTOUIC: error: process for ui_Player.h needed by
                               "/home/pi/vlc-qt/vlc-qt/tests/widgets/ui/Player.cpp"
                              failed:
                              /usr/lib/arm-linux-gnueabihf/qt5/bin/uic: relocation error: /usr/lib/arm-linux-gnueabihf/qt5/bin/uic: symbol qt_qhash_seed, version Qt_5 not defined in file libQt5Core.so.5 with link time reference
                              
                              uic failed...
                              tests/widgets/CMakeFiles/Test_WidgetsPlayer_automoc.dir/build.make:60 : la recette pour la cible « tests/widgets/CMakeFiles/Test_WidgetsPlayer_automoc » a échouée
                              make[2]: *** [tests/widgets/CMakeFiles/Test_WidgetsPlayer_automoc] Erreur 1
                              make[2] : on quitte le répertoire « /home/pi/vlc-qt/vlc-qt/build »
                              CMakeFiles/Makefile2:954 : la recette pour la cible « tests/widgets/CMakeFiles/Test_WidgetsPlayer_automoc.dir/all » a échouée
                              make[1]: *** [tests/widgets/CMakeFiles/Test_WidgetsPlayer_automoc.dir/all] Erreur 2
                              make[1] : on quitte le répertoire « /home/pi/vlc-qt/vlc-qt/build »
                              Makefile:141 : la recette pour la cible « all » a échouée
                              make: *** [all] Erreur 2
                              

                              Do you have an idea of what happened ?

                              CKurduC 1 Reply Last reply 17 Oct 2019, 19:59
                              0
                              • CKurduC CKurdu
                                10 Oct 2019, 17:37

                                @matio said in QtMultimedia issue, missing GStreamer after configure:

                                VM

                                Hi Matio,
                                Can you play videos using Qt Multimedia with no problem? Because I didn't, it plays videos but a problematic way. I have raspberry pi 3 b+ and I use qt vlc library to work around this problem.

                                G Offline
                                G Offline
                                getgo
                                wrote on 17 Oct 2019, 18:56 last edited by
                                #15

                                @CKurdu Hi, can your try change the amount of memory made for the GPU to 256? it's in the

                                raspi-config -> Advance option -> Memory split -> 256
                                

                                because I stuck to compiling gstreamer

                                1 Reply Last reply
                                1
                                • M matio
                                  17 Oct 2019, 07:16

                                  @CKurdu
                                  Hi!
                                  Thank you for your help.

                                  I followed the instructions of this page:

                                  https://github.com/vlc-qt/vlc-qt/blob/master/BUILDING.md

                                  But during the make step, at 93% of the compilation I have an error:

                                  /usr/lib/arm-linux-gnueabihf/qt5/bin/uic: relocation error: /usr/lib/arm-linux-gnueabihf/qt5/bin/uic: symbol qt_qhash_seed, version Qt_5 not defined in file libQt5Core.so.5 with link time reference
                                  AUTOUIC: error: process for ui_Player.h needed by
                                   "/home/pi/vlc-qt/vlc-qt/tests/widgets/ui/Player.cpp"
                                  failed:
                                  /usr/lib/arm-linux-gnueabihf/qt5/bin/uic: relocation error: /usr/lib/arm-linux-gnueabihf/qt5/bin/uic: symbol qt_qhash_seed, version Qt_5 not defined in file libQt5Core.so.5 with link time reference
                                  
                                  uic failed...
                                  tests/widgets/CMakeFiles/Test_WidgetsPlayer_automoc.dir/build.make:60 : la recette pour la cible « tests/widgets/CMakeFiles/Test_WidgetsPlayer_automoc » a échouée
                                  make[2]: *** [tests/widgets/CMakeFiles/Test_WidgetsPlayer_automoc] Erreur 1
                                  make[2] : on quitte le répertoire « /home/pi/vlc-qt/vlc-qt/build »
                                  CMakeFiles/Makefile2:954 : la recette pour la cible « tests/widgets/CMakeFiles/Test_WidgetsPlayer_automoc.dir/all » a échouée
                                  make[1]: *** [tests/widgets/CMakeFiles/Test_WidgetsPlayer_automoc.dir/all] Erreur 2
                                  make[1] : on quitte le répertoire « /home/pi/vlc-qt/vlc-qt/build »
                                  Makefile:141 : la recette pour la cible « all » a échouée
                                  make: *** [all] Erreur 2
                                  

                                  Do you have an idea of what happened ?

                                  CKurduC Offline
                                  CKurduC Offline
                                  CKurdu
                                  wrote on 17 Oct 2019, 19:59 last edited by
                                  #16

                                  @matio

                                  I compiled vlc-qt on raspbian os. Also don't use "make -j8" command just use "make" or may be "make -j4"

                                  You reap what you sow it

                                  M 1 Reply Last reply 18 Oct 2019, 08:16
                                  0
                                  • CKurduC CKurdu
                                    17 Oct 2019, 19:59

                                    @matio

                                    I compiled vlc-qt on raspbian os. Also don't use "make -j8" command just use "make" or may be "make -j4"

                                    M Offline
                                    M Offline
                                    matio
                                    wrote on 18 Oct 2019, 08:16 last edited by
                                    #17

                                    @CKurdu

                                    I compiled it on raspbian too and I haven't used the -j option.

                                    I tried again today but I still have the same error.

                                    The issue is surely related to this message:

                                    "the version Qt_5 not defined in file libQt5Core.so.5"

                                    But I don't know what this means and how to solve it.

                                    1 Reply Last reply
                                    0
                                    • CKurduC Offline
                                      CKurduC Offline
                                      CKurdu
                                      wrote on 19 Oct 2019, 17:33 last edited by
                                      #18

                                      Which version of Qt did you install and how?

                                      You reap what you sow it

                                      1 Reply Last reply
                                      0

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                                      9 Oct 2019, 15:34

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