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/***************************************************************************
* Copyright (C) 2006 by Ilya Kotov *
* forkotov02@hotmail.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., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#ifndef SOUNDCORE_H
#define SOUNDCORE_H
#include <QObject>
#include "decoder.h"
#include "output.h"
#include "visualization.h"
/**
@author Ilya Kotov <forkotov02@hotmail.ru>
*/
class QIODevice;
class SoundCore : public QObject
{
Q_OBJECT
public:
/*! This enum describes the errors that may be returned by the error() function.
* Available values is:
* \b SoundCore:NoError - no error occurred,
* \b SoundCore:DecoderError - an error occurred when creating decoder,
* \b SoundCore:OutputError - an error occurred when creating output.
*/
enum ErrorType { NoError = 0, DecoderError, OutputError };
SoundCore(QObject *parent = 0);
~SoundCore();
//control
/*!
* This function plays file with given path, returns \b TRUE if all is OK, otherwise \b FALSE
*/
bool play(const QString &source);
/*!
* Returns the playback error status.
* For example, if play() returns false, this function can be called to find out
* the reason why the operation failed.
*/
uint error();
/*!
* Stops playing
*/
void stop();
/*!
* Pauses/resumes playing
*/
void pause();
/*!
*This function sets the current play position to \b pos
*/
void seek(int pos);
// properties
/*!
* Returns length in seconds
*/
int length();
/*!
* Returns \b TRUE if \b play() called successful, otherwise \b FALSE.
*/
bool isReady();
/*!
* Returns \b TRUE if \b play() called successful, otherwise \b FALSE.
* Also this function returns \b FALSE if \b stop() called before
*/
bool isInitialized();
/*!
* Returns \b TRUE if plugins in pause mode, otherwise \b FALSE.
*/
bool isPaused();
//equalizer
/*!
* Sets equalizer settings. Each item of \b bands[] and \b reamp should be
* \b -100..100
*/
void setEQ(int bands[10], const int &preamp);
/*!
* Enables equalizer if on is \b TRUE or disables it if on is \b FALSE
*/
void setEQEnabled(bool on);
//volume
/*!
* Sets volume. \b L - volume of left channel. \b R - volume of right channel.
* \b L and \b R should be 0..100
*/
void setVolume(int L, int R);
//config
/*!
* updates configuration
*/
void updateConfig();
//visualization
/*!
* adds visualization
*/
void addVisualization(Visualization *visual);
signals:
/*!
* This signal is emited when the state of the decoder changes.
* The argument \b state is the new state of the decoder
*/
void decoderStateChanged(const DecoderState& state);
/*!
* This signal is emited when the state of the output changes.
* The argument \b state is the new state of the output
*/
void outputStateChanged(const OutputState& state);
private:
Decoder* m_decoder;
Output* m_output;
QIODevice* m_input;
uint m_error;
bool m_paused;
bool m_useEQ;
bool m_update;
int m_preamp;
int m_bands[10];
Visualization *m_vis;
};
#endif
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