Initial copy of QtMultimediaKit.
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Michael Goddard
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doc/src/snippets/multimedia-snippets/media.cpp
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236
doc/src/snippets/multimedia-snippets/media.cpp
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/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the Qt Mobility Components.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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/* Media related snippets */
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#include <QFile>
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#include <QTimer>
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#include "qaudiocapturesource.h"
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#include "qmediaplaylist.h"
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#include "qmediarecorder.h"
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#include "qmediaservice.h"
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#include "qmediaimageviewer.h"
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#include "qmediaimageviewer.h"
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#include "qmediaplayercontrol.h"
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#include "qmediaplayer.h"
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#include "qradiotuner.h"
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#include "qvideowidget.h"
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#include "qcameraimagecapture.h"
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class MediaExample : public QObject {
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Q_OBJECT
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void AudioCaptureSource();
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void MediaControl();
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void MediaImageViewer();
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void MediaPlayer();
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void RadioTuna();
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void MediaRecorder();
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void EncoderSettings();
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void ImageEncoderSettings();
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private:
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// Common naming
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QMediaService *mediaService;
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QVideoWidget *videoWidget;
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QWidget *widget;
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QMediaPlayer *player;
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QMediaPlaylist *playlist;
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QMediaContent video;
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QMediaRecorder *recorder;
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QMediaImageViewer *viewer;
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QCameraImageCapture *imageCapture;
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QAudioCaptureSource *audioSource;
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QString fileName;
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QRadioTuner *radio;
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QMediaContent image1;
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QMediaContent image2;
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QMediaContent image3;
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static const int yourRadioStationFrequency = 11;
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};
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void MediaExample::AudioCaptureSource()
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{
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//! [Audio capture source]
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QAudioCaptureSource* audioSource = new QAudioCaptureSource;
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QMediaRecorder* recorder = new QMediaRecorder(audioSource);
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recorder->setOutputLocation(QUrl("test.raw"));
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//! [Audio capture source]
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Q_UNUSED(audioSource);
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}
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void MediaExample::MediaControl()
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{
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{
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//! [Request control]
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QMediaPlayerControl *control = qobject_cast<QMediaPlayerControl *>(
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mediaService->requestControl("com.nokia.Qt.QMediaPlayerControl/1.0"));
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//! [Request control]
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Q_UNUSED(control);
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}
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{
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//! [Request control templated]
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QMediaPlayerControl *control = mediaService->requestControl<QMediaPlayerControl *>();
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//! [Request control templated]
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Q_UNUSED(control);
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}
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}
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void MediaExample::EncoderSettings()
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{
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//! [Audio encoder settings]
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QAudioEncoderSettings audioSettings;
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audioSettings.setCodec("audio/mpeg");
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audioSettings.setChannelCount(2);
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recorder->setEncodingSettings(audioSettings);
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//! [Audio encoder settings]
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//! [Video encoder settings]
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QVideoEncoderSettings videoSettings;
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videoSettings.setCodec("video/mpeg2");
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videoSettings.setResolution(640, 480);
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recorder->setEncodingSettings(audioSettings, videoSettings);
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//! [Video encoder settings]
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}
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void MediaExample::ImageEncoderSettings()
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{
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//! [Image encoder settings]
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QImageEncoderSettings imageSettings;
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imageSettings.setCodec("image/jpeg");
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imageSettings.setResolution(1600, 1200);
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imageCapture->setEncodingSettings(imageSettings);
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//! [Image encoder settings]
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}
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void MediaExample::MediaImageViewer()
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{
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//! [Binding]
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viewer = new QMediaImageViewer(this);
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videoWidget = new QVideoWidget;
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viewer->bind(videoWidget);
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videoWidget->show();
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//! [Binding]
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//! [Playlist]
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playlist = new QMediaPlaylist(this);
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playlist->setPlaybackMode(QMediaPlaylist::Loop);
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playlist->addMedia(image1);
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playlist->addMedia(image2);
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playlist->addMedia(image3);
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viewer->setPlaylist(playlist);
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viewer->setTimeout(5000);
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viewer->play();
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//! [Playlist]
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}
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void MediaExample::MediaPlayer()
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{
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//! [Player]
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player = new QMediaPlayer;
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connect(player, SIGNAL(positionChanged(qint64)), this, SLOT(positionChanged(qint64)));
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player->setMedia(QUrl::fromLocalFile("/Users/me/Music/coolsong.mp3"));
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player->setVolume(50);
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player->play();
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//! [Player]
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//! [Movie playlist]
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playlist = new QMediaPlaylist;
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playlist->addMedia(QUrl("http://example.com/movie1.mp4"));
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playlist->addMedia(QUrl("http://example.com/movie2.mp4"));
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playlist->addMedia(QUrl("http://example.com/movie3.mp4"));
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playlist->setCurrentIndex(1);
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player = new QMediaPlayer;
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player->setPlaylist(playlist);
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videoWidget = new QVideoWidget;
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player->setVideoOutput(videoWidget);
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videoWidget->show();
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player->play();
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//! [Movie playlist]
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}
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void MediaExample::MediaRecorder()
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{
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//! [Media recorder]
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// Audio only recording
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audioSource = new QAudioCaptureSource;
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recorder = new QMediaRecorder(audioSource);
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QAudioEncoderSettings audioSettings;
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audioSettings.setCodec("audio/vorbis");
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audioSettings.setQuality(QtMultimediaKit::HighQuality);
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recorder->setEncodingSettings(audioSettings);
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recorder->setOutputLocation(QUrl::fromLocalFile(fileName));
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recorder->record();
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//! [Media recorder]
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}
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void MediaExample::RadioTuna()
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{
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//! [Radio tuner]
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radio = new QRadioTuner;
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connect(radio, SIGNAL(frequencyChanged(int)), this, SLOT(freqChanged(int)));
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if (radio->isBandSupported(QRadioTuner::FM)) {
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radio->setBand(QRadioTuner::FM);
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radio->setFrequency(yourRadioStationFrequency);
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radio->setVolume(100);
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radio->start();
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}
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//! [Radio tuner]
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}
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