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/*  This file is part of the KDE project
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    Copyright (C) 2007 Matthias Kretz <kretz@kde.org>
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    This library is free software; you can redistribute it and/or
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    modify it under the terms of the GNU Lesser General Public
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    License as published by the Free Software Foundation; either
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    version 2.1 of the License, or (at your option) version 3, or any
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    later version accepted by the membership of KDE e.V. (or its
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    successor approved by the membership of KDE e.V.), Nokia Corporation
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    (or its successors, if any) and the KDE Free Qt Foundation, which shall
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    act as a proxy defined in Section 6 of version 3 of the license.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    Lesser General Public License for more details.
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    You should have received a copy of the GNU Lesser General Public 
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    License along with this library.  If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "streaminterface.h"
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#include "streaminterface_p.h"
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#include "abstractmediastream.h"
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#include "abstractmediastream_p.h"
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#include "mediasource_p.h"
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QT_BEGIN_NAMESPACE
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#ifndef QT_NO_PHONON_ABSTRACTMEDIASTREAM
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namespace Phonon
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{
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StreamInterface::StreamInterface()
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    : d(new StreamInterfacePrivate)
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{
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    d->q = this;
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}
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StreamInterface::~StreamInterface()
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{
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    if (d->connected) {
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        AbstractMediaStreamPrivate *dd = d->mediaSource.stream()->d_func();
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        dd->setStreamInterface(0);
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    }
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    delete d;
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}
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void StreamInterface::connectToSource(const MediaSource &mediaSource)
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{
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    Q_ASSERT(!d->connected);
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    d->connected = true;
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    d->mediaSource = mediaSource;
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    Q_ASSERT(d->mediaSource.type() == MediaSource::Stream);
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    Q_ASSERT(d->mediaSource.stream());
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    AbstractMediaStreamPrivate *dd = d->mediaSource.stream()->d_func();
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    dd->setStreamInterface(this);
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    d->mediaSource.stream()->reset();
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}
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void StreamInterfacePrivate::disconnectMediaStream()
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{
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    Q_ASSERT(connected);
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    connected = false;
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    // if mediaSource has autoDelete set then it will delete the AbstractMediaStream again who's
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    // destructor is calling us right now
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    mediaSource.setAutoDelete(false);
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    mediaSource = MediaSource();
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    q->endOfData();
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    q->setStreamSeekable(false);
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}
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void StreamInterface::needData()
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{
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    if (d->mediaSource.type() == MediaSource::Stream) {
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        d->mediaSource.stream()->needData();
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    }
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}
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void StreamInterface::enoughData()
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{
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    Q_ASSERT(d->connected);
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    if (d->mediaSource.type() == MediaSource::Stream) {
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        d->mediaSource.stream()->enoughData();
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    }
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}
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void StreamInterface::seekStream(qint64 offset)
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{
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    Q_ASSERT(d->connected);
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    if (d->mediaSource.type() == MediaSource::Stream) {
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        d->mediaSource.stream()->seekStream(offset);
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    }
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}
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void StreamInterface::reset()
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{
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    Q_ASSERT(d->connected);
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    if (d->mediaSource.type() == MediaSource::Stream) {
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        d->mediaSource.stream()->reset();
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    }
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}
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} // namespace Phonon
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#endif //QT_NO_PHONON_ABSTRACTMEDIASTREAM
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QT_END_NAMESPACE