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{{Infobox tutorial|time=20 min|distribution=SUSE Linux 11.3|type=Howto|happyreaders=2|unhappyreaders=0}} | {{Infobox tutorial|time=20 min|distribution=SUSE Linux 11.3|type=Howto|happyreaders=2|unhappyreaders=0}} | ||
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= Introduction = | = Introduction = | ||
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* '''Using the Phonon API''', which allows you to develop your own multimedia application. In fact any application which needs sound can take benefits from the phonon API. In the tutorials showing the API we will learn how to set up the development environment with kdevelop 3.4. | * '''Using the Phonon API''', which allows you to develop your own multimedia application. In fact any application which needs sound can take benefits from the phonon API. In the tutorials showing the API we will learn how to set up the development environment with kdevelop 3.4. | ||
| − | * '''Hacking the Phonon library''' | + | * '''Hacking the Phonon library'''. |
* '''Writing Phonon backend''', this consists in writing interfaces that allows Phonon to use different sound/video engine. This usually requires good skills and knowledge of the engine you interface with. | * '''Writing Phonon backend''', this consists in writing interfaces that allows Phonon to use different sound/video engine. This usually requires good skills and knowledge of the engine you interface with. | ||
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== Compile and run it == | == Compile and run it == | ||
cmake . && make && ./tutorial2 | cmake . && make && ./tutorial2 | ||
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| + | = Getting more help = | ||
| + | To talk among phonon experts, point your irc client to the server irc.freenode.org, channel #phonon. | ||
= See also = | = See also = | ||
| Time to replay | 20 min |
| Example Distro | SUSE Linux 11.3 |
| Type | Howto |
| Happy readers | 2 |
| Unhappy readers | 0 |
Contents |
The following is based on the documentation available here Phonon API.
By getting involved with Phonon, you can choose between three different main tasks.
Beginners will probably be more interested by the first task.
The following example is taken from http://www.englishbreakfastnetwork.org/apidocs/apidox-kde-4.0/kdelibs-apidocs/phonon/html/index.html. It plays /tmp/example.wav. To change the sound device that is used by default, use the command systemsettings.
You need a file CMakeLists.txt to compile the software later:
KDE TechBase CMakeLists.txt
project (tutorial2)
find_package(KDE4 REQUIRED)
include (KDE4Defaults)
include_directories(${KDE4_INCLUDES})
set(tutorial1_SRCS tutorial2.cpp)
kde4_add_executable(tutorial2 ${tutorial1_SRCS})
target_link_libraries(tutorial2 ${KDE4_KDEUI_LIBS} phonon)
install(TARGETS tutorial2 ${INSTALL_TARGETS_DEFAULT_ARGS})
#include <phonon/mediaobject.h>
#include <phonon/audiooutput.h>
#include <QtGui/QApplication>
#include <QtGui/QMainWindow>
#include <QUrl>
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
MainWindow();
};
MainWindow::MainWindow()
{
Phonon::MediaObject* media = new Phonon::MediaObject(this);
createPath(media, new Phonon::AudioOutput(Phonon::MusicCategory, this));
media->setCurrentSource(QUrl("/tmp/example.wav"));
media->play();
}
int main(int argc, char **argv)
{
QApplication app(argc, argv);
QApplication::setApplicationName("Phonon Tutorial 2");
MainWindow mw;
mw.show();
return app.exec();
}
#include "tutorial2.moc"
cmake . && make && ./tutorial2
To talk among phonon experts, point your irc client to the server irc.freenode.org, channel #phonon.
