/*  This file is part of the KDE project.

Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

This library is free software: you can redistribute it and/or modify

it under the terms of the GNU Lesser General Public License as published by

the Free Software Foundation, either version 2.1 or 3 of the License.

This library is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License

along with this library.  If not, see <http://www.gnu.org/licenses/>.

*/

#include "streamreader.h"

#include <QtCore/QMutex>

#include <phonon/streaminterface.h>

QT_BEGIN_NAMESPACE

#ifndef QT_NO_PHONON_ABSTRACTMEDIASTREAM

namespace Phonon

{

namespace Gstreamer

{

bool StreamReader::read(quint64 pos, int length, char * buffer)

{

     if (currentPos() - currentBufferSize() != pos) {

         if (!streamSeekable())

             return false;

         setCurrentPos(pos);

     }

    while (currentBufferSize() < length) {

        int oldSize = currentBufferSize();

        needData();

        if (oldSize == currentBufferSize())

            return false; // We didn't get any data

    }

    qMemCopy(buffer, m_buffer.data(), length);

    //truncate the buffer

    m_buffer = m_buffer.mid(pos);    

    return true;

}

}

}

#endif //QT_NO_PHONON_ABSTRACTMEDIASTREAM

QT_END_NAMESPACE