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Diffstat (limited to 'src/multimedia/effects/qsoundeffect_qsound_p.cpp')
| -rw-r--r-- | src/multimedia/effects/qsoundeffect_qsound_p.cpp | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/src/multimedia/effects/qsoundeffect_qsound_p.cpp b/src/multimedia/effects/qsoundeffect_qsound_p.cpp new file mode 100644 index 0000000..df160a9 --- /dev/null +++ b/src/multimedia/effects/qsoundeffect_qsound_p.cpp @@ -0,0 +1,225 @@ +/**************************************************************************** +** +** 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 QtMultimedia module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include <QtCore/qcoreapplication.h> +#include <QtCore/qtimer.h> +#include <QtCore/qfile.h> +#include <QtGui/qsound.h> +#include <QtMultimedia/qaudioformat.h> +#include <QDebug> + +#include "qmediacontent.h" +#include "qmediaplayer.h" +#include "qsoundeffect_p.h" + +#include "wavedecoder_p.h" + +#include "qsoundeffect_qsound_p.h" + +QT_BEGIN_NAMESPACE + +QSoundEffectPrivate::QSoundEffectPrivate(QObject* parent): + QObject(parent), + m_queued(false), + m_muted(false), + m_state(QMediaPlayer::StoppedState), + m_status(QMediaPlayer::NoMedia), + m_file(0), + m_sound(0) +{ + m_timer = new QTimer(this); + connect(m_timer,SIGNAL(timeout()),SLOT(checkPlayTime())); + m_media = QMediaContent(); +} + +QSoundEffectPrivate::~QSoundEffectPrivate() +{ + if (m_sound) delete m_sound; + if (m_waveDecoder) delete m_waveDecoder; + m_file->close(); +} + +qint64 QSoundEffectPrivate::duration() const +{ + if (m_waveDecoder) + return m_waveDecoder->size(); + + return 0; +} + +int QSoundEffectPrivate::volume() const +{ + return 100; +} + +bool QSoundEffectPrivate::isMuted() const +{ + return m_muted; +} + +QMediaContent QSoundEffectPrivate::media() const +{ + return m_media; +} + +QMediaPlayer::State QSoundEffectPrivate::state() const +{ + return m_state; +} + +QMediaPlayer::MediaStatus QSoundEffectPrivate::mediaStatus() const +{ + return m_status; +} + +void QSoundEffectPrivate::play() +{ + if (m_sound && !m_muted) { + m_queued = false; + m_timer->start(20); + m_playbackTime.start(); + m_sound->play(); + emit stateChanged(m_state = QMediaPlayer::PlayingState); + } else if (m_status == QMediaPlayer::LoadingMedia) + m_queued = true; +} + +void QSoundEffectPrivate::stop() +{ + m_timer->stop(); + + if (m_sound) { + m_sound->stop(); + emit stateChanged(m_state = QMediaPlayer::StoppedState); + } +} + +void QSoundEffectPrivate::setVolume(int volume) +{ + Q_UNUSED(volume) +} + +void QSoundEffectPrivate::setMuted(bool muted) +{ + m_muted = muted; +} + +void QSoundEffectPrivate::setMedia(const QMediaContent &media) +{ + m_queued = false; + + if (media.isNull() || media.canonicalUrl().scheme() != QLatin1String("file")) { + m_media = QMediaContent(); + return; + } + if (m_media == media) + return; + + m_media = media; + m_file = new QFile(m_media.canonicalUrl().toLocalFile()); + m_file->open(QIODevice::ReadOnly|QIODevice::Unbuffered); + + unloadSample(); + loadSample(); + + emit mediaChanged(m_media); +} + +void QSoundEffectPrivate::decoderReady() +{ + m_file->close(); + m_sound = new QSound(m_media.canonicalUrl().toLocalFile()); + emit mediaStatusChanged(m_status = QMediaPlayer::LoadedMedia); + + if (m_queued) + play(); +} + +void QSoundEffectPrivate::decoderError() +{ + m_file->close(); + emit mediaStatusChanged(m_status = QMediaPlayer::InvalidMedia); +} + +void QSoundEffectPrivate::checkPlayTime() +{ + if (m_sound->isFinished()) { + m_timer->stop(); + m_state = QMediaPlayer::StoppedState; + emit stateChanged(m_state); + } +} + +void QSoundEffectPrivate::loadSample() +{ + m_waveDecoder = new WaveDecoder(m_file); + connect(m_waveDecoder, SIGNAL(formatKnown()), SLOT(decoderReady())); + connect(m_waveDecoder, SIGNAL(invalidFormat()), SLOT(decoderError())); + + m_status = QMediaPlayer::LoadingMedia; + emit mediaStatusChanged(m_status); +} + +void QSoundEffectPrivate::unloadSample() +{ + if (m_sound == 0) + return; + + m_status = QMediaPlayer::NoMedia; + + if (m_sound) + delete m_sound; + + m_sound = 0; +} + +QT_END_NAMESPACE |