Need QTMultimedia but cant find it?

  • my qt4 folder contains the following /usr/include/qt4$ ls phonon QtDBus QtHelp QtScriptTools QtUiTools Qt QtDeclarative QtNetwork QtSql QtXml Qt3Support QtDesigner QtOpenGL QtSvg QtXmlPatterns QtCore QtGui QtScript QtTest but the project that i am working on gives the following error: /usr/lib/i386-linux-gnu/qt4/bin/qmake -o Makefile g++ -c -pipe -O2 -Wall -W -D_REENTRANT -DQT_NO_DEBUG -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED -I/usr/share/qt4/mkspecs/linux-g++ -I. -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtMultimedia -I/usr/include/qt4 -I. -o main.o main.cpp In file included from main.cpp:2:0: swipe.h:11:10: fatal error: QAudioInput: No such file or directory #include <QAudioInput> ^~~~~~~~~~~~~

  • Did you add Qt Multimedia in your .pro file?

    In my case I wrote:

    QT       += core gui multimedia multimediawidgets

  • Lifetime Qt Champion

    Hi and welcome to devnet,

    There's no QtMultimediaWidgets module in Qt 4 so you only need to add QT += multimedia to your .pro file.

    Might be a silly question but are you sure you installed the QtMultimedia development package ?

  • Qt 4 has reached EOL long ago. Please consider upgrading to Qt 5

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