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/***************************************************************************
* Copyright (C) 2006-2012 by Ilya Kotov *
* forkotov02@ya.ru *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#ifndef MMSSTREAMREADER_H
#define MMSSTREAMREADER_H
#include <QObject>
#include <QIODevice>
#include <QUrl>
#include <QMutex>
#include <QThread>
#define this var
#include <libmms/mmsx.h>
#undef this
class QFileInfo;
class DownloadThread;
class MMSInputSource;
/*! @internal
* @author Ilya Kotov <forkotov02@ya.ru>
*/
class MMSStreamReader : public QIODevice
{
Q_OBJECT
public:
MMSStreamReader(const QString &url, MMSInputSource *parent);
~MMSStreamReader();
/**
* QIODevice API
*/
bool atEnd () const;
qint64 bytesAvailable () const;
qint64 bytesToWrite () const;
void close ();
bool isSequential () const;
bool open (OpenMode mode);
bool seek (qint64 pos);
/**
* helper functions
*/
void downloadFile();
QMutex *mutex();
void abort();
void checkBuffer();
void run();
signals:
void ready();
void error();
private:
virtual qint64 readData(char*, qint64);
virtual qint64 writeData(const char*, qint64);
QMutex m_mutex;
QString m_url;
mmsx_t *m_handle;
bool m_aborted;
qint64 m_buffer_size, m_prebuf_size;
char *m_buffer;
qint64 m_buffer_at;
bool m_ready;
DownloadThread *m_thread;
MMSInputSource *m_parent;
};
class DownloadThread : public QThread
{
Q_OBJECT
public:
DownloadThread(MMSStreamReader *parent);
virtual ~DownloadThread ();
static void usleep(unsigned long usecs)
{
QThread::usleep(usecs);
}
private:
virtual void run();
MMSStreamReader *m_parent;
};
#endif
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