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Diffstat (limited to 'doc/src/snippets/multimedia-snippets/media.cpp')
| -rw-r--r-- | doc/src/snippets/multimedia-snippets/media.cpp | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/doc/src/snippets/multimedia-snippets/media.cpp b/doc/src/snippets/multimedia-snippets/media.cpp new file mode 100644 index 000000000..6ef60f7e7 --- /dev/null +++ b/doc/src/snippets/multimedia-snippets/media.cpp @@ -0,0 +1,236 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the Qt Mobility Components. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +/* Media related snippets */ +#include <QFile> +#include <QTimer> + +#include "qaudiocapturesource.h" +#include "qmediaplaylist.h" +#include "qmediarecorder.h" +#include "qmediaservice.h" +#include "qmediaimageviewer.h" +#include "qmediaimageviewer.h" +#include "qmediaplayercontrol.h" +#include "qmediaplayer.h" +#include "qradiotuner.h" +#include "qvideowidget.h" +#include "qcameraimagecapture.h" + +class MediaExample : public QObject { + Q_OBJECT + + void AudioCaptureSource(); + void MediaControl(); + void MediaImageViewer(); + void MediaPlayer(); + void RadioTuna(); + void MediaRecorder(); + void EncoderSettings(); + void ImageEncoderSettings(); + +private: + // Common naming + QMediaService *mediaService; + QVideoWidget *videoWidget; + QWidget *widget; + QMediaPlayer *player; + QMediaPlaylist *playlist; + QMediaContent video; + QMediaRecorder *recorder; + QMediaImageViewer *viewer; + QCameraImageCapture *imageCapture; + QAudioCaptureSource *audioSource; + QString fileName; + QRadioTuner *radio; + QMediaContent image1; + QMediaContent image2; + QMediaContent image3; + + static const int yourRadioStationFrequency = 11; +}; + +void MediaExample::AudioCaptureSource() +{ + //! [Audio capture source] + QAudioCaptureSource* audioSource = new QAudioCaptureSource; + QMediaRecorder* recorder = new QMediaRecorder(audioSource); + + recorder->setOutputLocation(QUrl("test.raw")); + //! [Audio capture source] + + Q_UNUSED(audioSource); +} + + +void MediaExample::MediaControl() +{ + { + //! [Request control] + QMediaPlayerControl *control = qobject_cast<QMediaPlayerControl *>( + mediaService->requestControl("com.nokia.Qt.QMediaPlayerControl/1.0")); + //! [Request control] + Q_UNUSED(control); + } + + { + //! [Request control templated] + QMediaPlayerControl *control = mediaService->requestControl<QMediaPlayerControl *>(); + //! [Request control templated] + Q_UNUSED(control); + } +} + + +void MediaExample::EncoderSettings() +{ + //! [Audio encoder settings] + QAudioEncoderSettings audioSettings; + audioSettings.setCodec("audio/mpeg"); + audioSettings.setChannelCount(2); + + recorder->setEncodingSettings(audioSettings); + //! [Audio encoder settings] + + //! [Video encoder settings] + QVideoEncoderSettings videoSettings; + videoSettings.setCodec("video/mpeg2"); + videoSettings.setResolution(640, 480); + + recorder->setEncodingSettings(audioSettings, videoSettings); + //! [Video encoder settings] +} + +void MediaExample::ImageEncoderSettings() +{ + //! [Image encoder settings] + QImageEncoderSettings imageSettings; + imageSettings.setCodec("image/jpeg"); + imageSettings.setResolution(1600, 1200); + + imageCapture->setEncodingSettings(imageSettings); + //! [Image encoder settings] +} + +void MediaExample::MediaImageViewer() +{ + //! [Binding] + viewer = new QMediaImageViewer(this); + + videoWidget = new QVideoWidget; + viewer->bind(videoWidget); + videoWidget->show(); + //! [Binding] + + //! [Playlist] + playlist = new QMediaPlaylist(this); + playlist->setPlaybackMode(QMediaPlaylist::Loop); + playlist->addMedia(image1); + playlist->addMedia(image2); + playlist->addMedia(image3); + + viewer->setPlaylist(playlist); + viewer->setTimeout(5000); + viewer->play(); + //! [Playlist] +} + +void MediaExample::MediaPlayer() +{ + //! [Player] + player = new QMediaPlayer; + connect(player, SIGNAL(positionChanged(qint64)), this, SLOT(positionChanged(qint64))); + player->setMedia(QUrl::fromLocalFile("/Users/me/Music/coolsong.mp3")); + player->setVolume(50); + player->play(); + //! [Player] + + //! [Movie playlist] + playlist = new QMediaPlaylist; + playlist->addMedia(QUrl("http://example.com/movie1.mp4")); + playlist->addMedia(QUrl("http://example.com/movie2.mp4")); + playlist->addMedia(QUrl("http://example.com/movie3.mp4")); + playlist->setCurrentIndex(1); + + player = new QMediaPlayer; + player->setPlaylist(playlist); + + videoWidget = new QVideoWidget; + player->setVideoOutput(videoWidget); + videoWidget->show(); + + player->play(); + //! [Movie playlist] +} + +void MediaExample::MediaRecorder() +{ + //! [Media recorder] + // Audio only recording + audioSource = new QAudioCaptureSource; + recorder = new QMediaRecorder(audioSource); + + QAudioEncoderSettings audioSettings; + audioSettings.setCodec("audio/vorbis"); + audioSettings.setQuality(QtMultimediaKit::HighQuality); + + recorder->setEncodingSettings(audioSettings); + + recorder->setOutputLocation(QUrl::fromLocalFile(fileName)); + recorder->record(); + //! [Media recorder] +} + +void MediaExample::RadioTuna() +{ + //! [Radio tuner] + radio = new QRadioTuner; + connect(radio, SIGNAL(frequencyChanged(int)), this, SLOT(freqChanged(int))); + if (radio->isBandSupported(QRadioTuner::FM)) { + radio->setBand(QRadioTuner::FM); + radio->setFrequency(yourRadioStationFrequency); + radio->setVolume(100); + radio->start(); + } + //! [Radio tuner] +} + + |