diff options
Diffstat (limited to 'doc/src/snippets/code/doc_src_phonon-api.cpp')
-rw-r--r-- | doc/src/snippets/code/doc_src_phonon-api.cpp | 264 |
1 files changed, 264 insertions, 0 deletions
diff --git a/doc/src/snippets/code/doc_src_phonon-api.cpp b/doc/src/snippets/code/doc_src_phonon-api.cpp new file mode 100644 index 0000000000..d7a989b49e --- /dev/null +++ b/doc/src/snippets/code/doc_src_phonon-api.cpp @@ -0,0 +1,264 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the documentation of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +//! [0] +PushStream::PushStream(QObject *parent) + : AbstractMediaStream(parent), m_timer(new QTimer(this)) +{ + setStreamSize(getMediaStreamSize()); + + connect(m_timer, SIGNAL(timeout()), SLOT(moreData())); + m_timer->setInterval(0); +} + +void PushStream::moreData() +{ + const QByteArray data = getMediaData(); + if (data.isEmpty()) { + endOfData(); + } else { + writeData(data); + } +} + +void PushStream::needData() +{ + m_timer->start(); + moreData(); +} + +void PushStream::enoughData() +{ + m_timer->stop(); +} +//! [0] + + +//! [1] +PullStream::PullStream(QObject *parent) + : AbstractMediaStream(parent) +{ + setStreamSize(getMediaStreamSize()); +} + +void PullStream::needData() +{ + const QByteArray data = getMediaData(); + if (data.isEmpty()) { + endOfData(); + } else { + writeData(data); + } +} +//! [1] + + +//! [2] +seekStream(0); +//! [2] + + +//! [3] +MediaObject m; +QString fileName("/home/foo/bar.ogg"); +QUrl url("http://www.example.com/stream.mp3"); +QBuffer *someBuffer; +m.setCurrentSource(fileName); +m.setCurrentSource(url); +m.setCurrentSource(someBuffer); +m.setCurrentSource(Phonon::Cd); +//! [3] + + +//! [4] +VideoPlayer *player = new VideoPlayer(Phonon::VideoCategory, parentWidget); +connect(player, SIGNAL(finished()), player, SLOT(deleteLater())); +player->play(url); +//! [4] + + +//! [5] +audioPlayer->load(url); +audioPlayer->play(); +//! [5] + + +//! [6] +media = new MediaObject(this); +connect(media, SIGNAL(finished()), SLOT(slotFinished()); +media->setCurrentSource("/home/username/music/filename.ogg"); + +... + +media->play(); +//! [6] + + +//! [7] +media->setCurrentSource(":/sounds/startsound.ogg"); +media->enqueue("/home/username/music/song.mp3"); +media->enqueue(":/sounds/endsound.ogg"); +//! [7] + + +//! [8] + media->setCurrentSource(":/sounds/startsound.ogg"); + connect(media, SIGNAL(aboutToFinish()), SLOT(enqueueNextSource())); +} + +void enqueueNextSource() +{ + media->enqueue("/home/username/music/song.mp3"); +} +//! [8] + + +//! [9] +int x = 200; +media->setTickInterval(x); +Q_ASSERT(x == producer->tickInterval()); +//! [9] + + +//! [10] +int x = 200; +media->setTickInterval(x); +Q_ASSERT(x >= producer->tickInterval() && + x <= 2producer->tickInterval()); +//! [10] + + +//! [11] + connect(media, SIGNAL(hasVideoChanged(bool)), hasVideoChanged(bool)); + media->setCurrentSource("somevideo.avi"); + media->hasVideo(); // returns false; +} + +void hasVideoChanged(bool b) +{ + // b == true + media->hasVideo(); // returns true; +} +//! [11] + + +//! [12] + connect(media, SIGNAL(hasVideoChanged(bool)), hasVideoChanged(bool)); + media->setCurrentSource("somevideo.avi"); + media->hasVideo(); // returns false; +} + +void hasVideoChanged(bool b) +{ + // b == true + media->hasVideo(); // returns true; +} +//! [12] + + +//! [13] +setMetaArtist(media->metaData("ARTIST")); +setMetaAlbum(media->metaData("ALBUM")); +setMetaTitle(media->metaData("TITLE")); +setMetaDate(media->metaData("DATE")); +setMetaGenre(media->metaData("GENRE")); +setMetaTrack(media->metaData("TRACKNUMBER")); +setMetaComment(media->metaData("DESCRIPTION")); +//! [13] + + +//! [14] +QUrl url("http://www.example.com/music.ogg"); +media->setCurrentSource(url); +//! [14] + + +//! [15] +progressBar->setRange(0, 100); // this is the default +connect(media, SIGNAL(bufferStatus(int)), progressBar, SLOT(setValue(int))); +//! [15] + + +//! [16] +QObject::connect(BackendCapabilities::notifier(), SIGNAL(capabilitiesChanged()), ... +//! [16] + + +//! [17] +QComboBox *cb = new QComboBox(parentWidget); +ObjectDescriptionModel *model = new ObjectDescriptionModel(cb); +model->setModelData(BackendCapabilities::availableAudioOutputDevices()); +cb->setModel(model); +cb->setCurrentIndex(0); // select first entry +//! [17] + + +//! [18] +int cbIndex = cb->currentIndex(); +AudioOutputDevice selectedDevice = model->modelData(cbIndex); +//! [18] + + +//! [19] +Path path = Phonon::createPath(...); +Effect *effect = new Effect(this); +path.insertEffect(effect); +//! [19] + + +//! [20] +MediaObject *media = new MediaObject; +AudioOutput *output = new AudioOutput(Phonon::MusicCategory); +Path path = Phonon::createPath(media, output); +Q_ASSERT(path.isValid()); // for this simple case the path should always be + //valid - there are unit tests to ensure it +// insert an effect +QList<EffectDescription> effectList = BackendCapabilities::availableAudioEffects(); +if (!effectList.isEmpty()) { + Effect *effect = path.insertEffect(effectList.first()); +} +//! [20] + + +//! [21] +MediaObject *media = new MediaObject(parent); +VideoWidget *vwidget = new VideoWidget(parent); +Phonon::createPath(media, vwidget); +//! [21] |