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100 lines
3.0 KiB
100 lines
3.0 KiB
15 years ago
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/***************************************************************************
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copyright : (C) 2003 by Arnold Krille
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email : arnold@arnoldarts.de
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; version 2 of the License. *
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* *
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***************************************************************************/
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#ifndef KREC_EXPORT_TEMPLATE_H
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#define KREC_EXPORT_TEMPLATE_H
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#include <qobject.h>
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#include <qstring.h>
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#include <qstringlist.h>
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#include <qcstring.h>
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#include <arts/common.h>
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/**
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* This class is the template for all exportitems in KRec.
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*
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* To register your ExportItem you have to do @code registerAtGlobal( this ); @code
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* at the end of your constructor.
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*
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* @author Arnold Krille <arnold@arnoldarts.de>
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*/
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class KRecExportItem : public QObject {
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Q_OBJECT
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private:
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/// Controls wether an export is running, or not...
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bool _running;
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int _samplingRate, _bits, _channels;
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protected:
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KRecExportItem( QObject*, const char* =0, const QStringList& =0 );
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/**
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* This registers this class at the KRecGlobal.
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*/
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static void registerAtGlobal( KRecExportItem* );
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int samplingRate() const;
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int bits() const;
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int channels() const;
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/// Helpers for reading and writing to an char-array
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Q_INT16 read16( char* array, int index );
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void write16( char* array, Q_INT16 value, int index );
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void write32( char* array, Q_INT32 value, int index );
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public:
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~KRecExportItem();
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/**
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* Returns a new Item for your export.
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*/
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virtual KRecExportItem* newItem()=0;
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/// Returns a list with the extensions.
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virtual QStringList extensions()=0;
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/// Returns the export format.
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virtual QString exportFormat()=0;
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bool running() const { return _running; }
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public slots:
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/**
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* Initializes the sound-settings.
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* Has to be called before the initialize( const QString & ) function.
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*/
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void initialize( int samplingRate, int bits, int channels );
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/// Initializes the export.
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virtual bool initialize( const QString &filename )=0;
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/**
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* Start the real export (including the emission of @see getData() while running=true).
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* Best way to do this is to use @see QTimer::singleShot() since then the events are
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* put at the end of the EventLoop not blocking the gui and everything else.
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*/
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bool start();
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virtual bool process() =0;
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/// Stops the export by setting running=false.
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void stop();
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/// Finish the export.
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virtual bool finalize()=0;
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//virtual void data( QByteArray& );
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signals:
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/// Is emitted when this Item wants data to export.
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void getData( QByteArray& );
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void running( bool );
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};
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#endif
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// vim:sw=4:ts=4
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