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"Qt5GStreamer-1.0 development package not found"

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  • jsulmJ Offline
    jsulmJ Offline
    jsulm
    Lifetime Qt Champion
    wrote on last edited by
    #8

    It's the compiler/linker not QtCreator.
    You do not link your app against QGStreamer libraries or the linker cannot find them.

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

    H 1 Reply Last reply
    0
    • jsulmJ jsulm

      It's the compiler/linker not QtCreator.
      You do not link your app against QGStreamer libraries or the linker cannot find them.

      H Offline
      H Offline
      HYKim
      wrote on last edited by
      #9

      @jsulm Hi, thank you for replying
      Okay, I understand. the errors are link errors.

      I searched google constantly, but I didn't find how to fix it.
      Can you give any idea to sovle it?

      1 Reply Last reply
      0
      • SGaistS Offline
        SGaistS Offline
        SGaist
        Lifetime Qt Champion
        wrote on last edited by
        #10

        IIRC you need something like:

        PKGCONFIG += Qt5GStreamer-1.0 Qt5GLib-2.0
        

        If using QtQuick

        PKGCONFIG += Qt5GStreamerQuick-1.0
        

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

        H 1 Reply Last reply
        1
        • SGaistS SGaist

          IIRC you need something like:

          PKGCONFIG += Qt5GStreamer-1.0 Qt5GLib-2.0
          

          If using QtQuick

          PKGCONFIG += Qt5GStreamerQuick-1.0
          
          H Offline
          H Offline
          HYKim
          wrote on last edited by
          #11

          @SGaist Thank you but I tried it already

          Now I'm finding any mistake during install qt gstreamer 1.2.0..

          1 Reply Last reply
          0
          • SGaistS Offline
            SGaistS Offline
            SGaist
            Lifetime Qt Champion
            wrote on last edited by
            #12

            Silly question then, are you sure that the libraries are built for the right architecture ?

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

            H 1 Reply Last reply
            0
            • SGaistS SGaist

              Silly question then, are you sure that the libraries are built for the right architecture ?

              H Offline
              H Offline
              HYKim
              wrote on last edited by
              #13

              @SGaist I Think "yes".
              I really don't know why it did it.

              1 Reply Last reply
              0
              • SGaistS Offline
                SGaistS Offline
                SGaist
                Lifetime Qt Champion
                wrote on last edited by
                #14

                Can you check the link line in the compiler output panel to see if the libraries from QtGstreamer are there ?

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

                H 1 Reply Last reply
                0
                • SGaistS SGaist

                  Can you check the link line in the compiler output panel to see if the libraries from QtGstreamer are there ?

                  H Offline
                  H Offline
                  HYKim
                  wrote on last edited by
                  #15

                  @SGaist

                  I checked the compiler output panel, as you said. but I couldn't find the link line.

                  This is Compile Output

                  Run qmake:

                  10:28:45: Running steps for project player...
                  10:28:45: Starting: "/home/hoyoung/Qt5.5.1/5.5/gcc_64/bin/qmake" /home/hoyoung/qt-gstreamer-1.2.0/examples/player/player.pro -r -spec linux-g++ CONFIG+=debug -Wall
                  WARNING: /home/hoyoung/Qt5.5.1/5.5/gcc_64/mkspecs/features/qt.prf:101: Excess colon in front of opening brace.
                  WARNING: /home/hoyoung/Qt5.5.1/5.5/gcc_64/mkspecs/features/qt.prf:244: Excess colon in front of opening brace.
                  WARNING: /home/hoyoung/Qt5.5.1/5.5/gcc_64/mkspecs/features/qt.prf:255: Excess colon in front of opening brace.
                  10:28:45: The process "/home/hoyoung/Qt5.5.1/5.5/gcc_64/bin/qmake" exited normally.
                  10:28:45: Elapsed time: 00:00.
                  

                  Build:

                  10:15:44: Running steps for project player...
                  10:15:44: Configuration unchanged, skipping qmake step.
                  10:15:44: Starting: "/usr/bin/make" 
                  linking player
                  main.o: In function `main':
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/main.cpp:24: undefined reference to `QGst::init(int*, char***)'
                  player.o: In function `Player::Player(QWidget*)':
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:34: undefined reference to `QGst::Ui::VideoWidget::VideoWidget(QWidget*, QFlags<Qt::WindowType>)'
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:34: undefined reference to `QGst::Ui::VideoWidget::~VideoWidget()'
                  player.o: In function `Player::~Player()':
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:44: undefined reference to `QGst::Element::setState(QGst::State)'
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:45: undefined reference to `QGst::Ui::VideoWidget::stopPipelineWatch()'
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:41: undefined reference to `QGst::Ui::VideoWidget::~VideoWidget()'
                  player.o: In function `Player::setUri(QString const&)':
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:59: undefined reference to `QGst::ElementFactory::make(char const*, char const*)'
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:62: undefined reference to `QGst::Ui::VideoWidget::watchPipeline(QGlib::RefPointer<QGst::Pipeline> const&)'
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:65: undefined reference to `QGst::Pipeline::bus() const'
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:66: undefined reference to `QGst::Bus::addSignalWatch()'
                  player.o: In function `Player::position() const':
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:83: undefined reference to `QGst::PositionQuery::create(QGst::Format)'
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:84: undefined reference to `QGst::Element::query(QGlib::RefPointer<QGst::Query> const&)'
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:85: undefined reference to `QGst::PositionQuery::position() const'
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:85: undefined reference to `QGst::ClockTime::toTime() const'
                  player.o: In function `Player::setPosition(QTime const&)':
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:97: undefined reference to `QGst::ClockTime::fromTime(QTime const&)'
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:97: undefined reference to `QGst::SeekEvent::create(double, QGst::Format, QFlags<QGst::SeekFlag>, QGst::SeekType, long long, QGst::SeekType, long long)'
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:99: undefined reference to `QGst::Element::sendEvent(QGlib::RefPointer<QGst::Event> const&)'
                  player.o: In function `Player::volume() const':
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:109: undefined reference to `QGst::StreamVolume::volume(QGst::StreamVolumeFormat) const'
                  player.o: In function `Player::setVolume(int)':
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:124: undefined reference to `QGst::StreamVolume::setVolume(double, QGst::StreamVolumeFormat)'
                  player.o: In function `Player::length() const':
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:134: undefined reference to `QGst::DurationQuery::create(QGst::Format)'
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:135: undefined reference to `QGst::Element::query(QGlib::RefPointer<QGst::Query> const&)'
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:136: undefined reference to `QGst::DurationQuery::duration() const'
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:136: undefined reference to `QGst::ClockTime::toTime() const'
                  player.o: In function `Player::state() const':
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:144: undefined reference to `QGst::Element::currentState() const'
                  player.o: In function `Player::play()':
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:150: undefined reference to `QGst::Element::setState(QGst::State)'
                  player.o: In function `Player::pause()':
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:157: undefined reference to `QGst::Element::setState(QGst::State)'
                  player.o: In function `Player::stop()':
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:164: undefined reference to `QGst::Element::setState(QGst::State)'
                  player.o: In function `Player::onBusMessage(QGlib::RefPointer<QGst::Message> const&)':
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:175: undefined reference to `QGst::Message::type() const'
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:180: undefined reference to `QGst::ErrorMessage::error() const'
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:180: undefined reference to `QGlib::operator<<(QDebug, QGlib::Error const&)'
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:180: undefined reference to `QGlib::Error::~Error()'
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:184: undefined reference to `QGst::Message::source() const'
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:180: undefined reference to `QGlib::Error::~Error()'
                  player.o: In function `Player::handlePipelineStateChange(QGlib::RefPointer<QGst::StateChangedMessage> const&)':
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:195: undefined reference to `QGst::StateChangedMessage::newState() const'
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/../player/player.cpp:202: undefined reference to `QGst::StateChangedMessage::oldState() const'
                  player.o: In function `Player::qt_metacast(char const*)':
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/./moc_player.cpp:132: undefined reference to `QGst::Ui::VideoWidget::qt_metacast(char const*)'
                  player.o: In function `Player::qt_metacall(QMetaObject::Call, int, void**)':
                  /home/hoyoung/qt-gstreamer-1.2.0/examples/build-player-Desktop_Qt_5_5_1_GCC_64bit-Debug/./moc_player.cpp:137: undefined reference to `QGst::Ui::VideoWidget::qt_metacall(QMetaObject::Call, int, void**)'
                  player.o: In function `QGlib::ValueImpl<QString>::set(QGlib::Value&, QString const&)':
                  /usr/local/include/Qt5GStreamer/QGst/../QGlib/value.h:454: undefined reference to `QGlib::Value::setData(QGlib::Type, void const*)'
                  player.o:(.data.rel.ro+0x0): undefined reference to `QGst::Ui::VideoWidget::staticMetaObject'
                  player.o: In function `QGlib::Type QGlib::GetType<QGst::Message>()':
                  /usr/local/include/Qt5GStreamer/QGst/../QGlib/type.h:182: undefined reference to `QGlib::GetTypeImpl<QGst::Message>::operator QGlib::Type()'
                  player.o: In function `QGlib::Type QGlib::GetType<QGst::StreamVolume>()':
                  /usr/local/include/Qt5GStreamer/QGst/../QGlib/type.h:182: undefined reference to `QGlib::GetTypeImpl<QGst::StreamVolume>::operator QGlib::Type()'
                  player.o: In function `bool QGlib::connect<Player, void, QGlib::RefPointer<QGst::Message> const&>(void*, char const*, Player*, void (Player::*)(QGlib::RefPointer<QGst::Message> const&), QFlags<QGlib::ConnectFlag>)':
                  /usr/local/include/Qt5GStreamer/QGlib/connectimpl.h:197: undefined reference to `QGlib::Private::connect(void*, char const*, QGlib::Quark, void*, QSharedPointer<QGlib::Private::DestroyNotifierIface> const&, unsigned int, QGlib::Private::ClosureDataBase*, QFlags<QGlib::ConnectFlag>)'
                  player.o: In function `void QGlib::ObjectBase::setProperty<QString>(char const*, QString const&)':
                  /usr/local/include/Qt5GStreamer/QGst/../QGlib/object.h:108: undefined reference to `QGlib::ObjectBase::findProperty(char const*) const'
                  /usr/local/include/Qt5GStreamer/QGst/../QGlib/object.h:110: undefined reference to `QGlib::Value::Value()'
                  /usr/local/include/Qt5GStreamer/QGst/../QGlib/object.h:111: undefined reference to `QGlib::ParamSpec::valueType() const'
                  /usr/local/include/Qt5GStreamer/QGst/../QGlib/object.h:111: undefined reference to `QGlib::Value::init(QGlib::Type)'
                  /usr/local/include/Qt5GStreamer/QGst/../QGlib/object.h:113: undefined reference to `QGlib::ObjectBase::setProperty(char const*, QGlib::Value const&)'
                  /usr/local/include/Qt5GStreamer/QGst/../QGlib/object.h:113: undefined reference to `QGlib::Value::~Value()'
                  /usr/local/include/Qt5GStreamer/QGst/../QGlib/object.h:113: undefined reference to `QGlib::Value::~Value()'
                  player.o: In function `QGlib::Private::GetDestroyNotifier<Player, void>::operator QSharedPointer<QGlib::Private::DestroyNotifierIface>()':
                  /usr/local/include/Qt5GStreamer/QGlib/connect.h:254: undefined reference to `QGlib::Private::QObjectDestroyNotifier::instance()'
                  player.o: In function `QGlib::Private::IfaceDynamicCastImpl<QGst::Pipeline, QGst::StreamVolume, void>::doCast(_GstStreamVolume*)':
                  /usr/local/include/Qt5GStreamer/QGst/../QGlib/refpointer.h:408: undefined reference to `QGlib::Type::fromInstance(void*)'
                  /usr/local/include/Qt5GStreamer/QGst/../QGlib/refpointer.h:408: undefined reference to `QGlib::Type::isA(QGlib::Type) const'
                  /usr/local/include/Qt5GStreamer/QGst/../QGlib/refpointer.h:410: undefined reference to `QGlib::Private::wrapInterface(QGlib::Type, void*)'
                  player.o:(.data.rel.ro._ZTV6Player[_ZTV6Player]+0x100): undefined reference to `QGst::Ui::VideoWidget::paintEvent(QPaintEvent*)'
                  player.o:(.data.rel.ro._ZTIN4QGst7MessageE[_ZTIN4QGst7MessageE]+0x10): undefined reference to `typeinfo for QGst::MiniObject'
                  player.o:(.data.rel.ro._ZTI6Player[_ZTI6Player]+0x10): undefined reference to `typeinfo for QGst::Ui::VideoWidget'
                  player.o:(.data.rel.ro._ZTIN4QGst7ElementE[_ZTIN4QGst7ElementE]+0x10): undefined reference to `typeinfo for QGst::Object'
                  player.o:(.data.rel.ro._ZTIN5QGlib9InterfaceE[_ZTIN5QGlib9InterfaceE]+0x18): undefined reference to `typeinfo for QGlib::ObjectBase'
                  player.o: In function `QGlib::ValueImpl<QGlib::RefPointer<QGst::Message> >::get(QGlib::Value const&)':
                  /usr/local/include/Qt5GStreamer/QGst/../QGlib/value.h:388: undefined reference to `QGlib::Value::getData(QGlib::Type, void*) const'
                  player.o: In function `QGlib::WrapImpl<QGst::Message, void>::wrap(_GstMessage*)':
                  /usr/local/include/Qt5GStreamer/QGst/miniobject.h:60: undefined reference to `QGst::Private::wrapMiniObject(void*)'
                  collect2: error: ld returned 1 exit status
                  make: *** [player] Error 1
                  10:15:44: The process "/usr/bin/make" exited with code 2.
                  Error while building/deploying project player (kit: Desktop Qt 5.5.1 GCC 64bit)
                  When executing step "Make"
                  10:15:44: Elapsed time: 00:00.
                  

                  I checked the "init.h". and I'm trying to find 'GStreamer' library.

                  a part of "QGst/Init.h":

                      QTGSTREAMER_EXPORT void init(int *argc, char **argv[]);
                  
                      /*! Clean up any resources created by GStreamer in init().
                       *
                       * It is normally not needed to call this function in a normal application as the resources
                       * will automatically be freed when the program terminates. This function is therefore mostly
                       * used by testsuites and other memory profiling tools.
                       *
                       * After this call GStreamer (including this method) should not be used anymore.
                       *
                       * \note You need to include <QGst/Init> to use this function.
                       */
                  
                  1 Reply Last reply
                  0
                  • M Offline
                    M Offline
                    Manoj_Sahu
                    wrote on last edited by
                    #16

                    Did anybody got the luck to know the reason for:
                    "Project ERROR: Package Qt5GStreamerQuick-1.0 not found".

                    I have installed: qt-gstreamer-dev package
                    Not working even after manually adding PKG_CONFIG_LIBDIR:
                    export PKG_CONFIG_LIBDIR=/home/manojsahu/qt-gstreamer-1.2.0/src/QGst/QtGStreamer-1.0.pc.in

                    I have also added PKGCONFIG alternatively in .pro file like:
                    PKGCONFIG += Qt5GStreamerQuick-1.0
                    PKGCONFIG += QtGStreamer-1.0

                    Can anybody help to resolve this error.
                    I am trying to compile example in below mentioned link:

                    https://github.com/detrout/qt-gstreamer/tree/master/examples/qmlplayer

                    1 Reply Last reply
                    0
                    • SGaistS Offline
                      SGaistS Offline
                      SGaist
                      Lifetime Qt Champion
                      wrote on last edited by
                      #17

                      Hi and welcome to devnet,

                      It's PKG_CONFIG_PATH that you should modify in order to add new paths to search .pc files.

                      Where are you calling export ?

                      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
                        Manoj_Sahu
                        wrote on last edited by
                        #18

                        I am calling export PKG_CONFIG_PATH in my example code directory.

                        1 Reply Last reply
                        0
                        • SGaistS Offline
                          SGaistS Offline
                          SGaist
                          Lifetime Qt Champion
                          wrote on last edited by
                          #19

                          Are you opening Qt Creator from that terminal ? If not then it won't use the environment variable since it has only been exported in this terminal.

                          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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