gxAudioFilter.h

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/*  Copyright (C) 2004  Guido Simone
 *
 *  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 GXLIB_GXAUDIOFILTER_H
#define GXLIB_GXAUDIOFILTER_H


#include "../gx.h"
#include "gxMediaControl.h"

class gxAudioPin;
class gxAudioCard;
class gxAudioGraph;
class gxAudioClockSource;
class gxAudioClockSink;
class gxPanel;
class gxProperties;
class gxAudioFilterVisitor;

class gxAudioFilter : public gxMediaControl
{
protected:
   gxAudioFilter() { };

public:
   virtual ~gxAudioFilter() { };

   virtual bool accept( gxAudioFilterVisitor * visitor ) = 0;
   virtual gxAudioClockSink * castClockSink() = 0;
   virtual gxAudioClockSource * castClockSource() = 0;
   virtual int createPanel( gxPanel ** panel ) = 0;
   virtual gxAudioPin * findPinById( const char * id ) = 0;
   virtual gxAudioPin * findPinByName( const char * name ) = 0;
   virtual gxAudioGraph * getGraph() = 0;
   virtual std::string getName() = 0;
   virtual gxAudioPin * getPin( int index ) = 0;
   virtual int getPinCount() = 0;
   virtual state_t getState() = 0;
   virtual bool isRunDirectly() = 0;
   virtual bool isSoundSource() = 0;
   virtual int loadFile( const char * fileName ) = 0;
   virtual int pause() = 0;
   virtual int run() = 0;
   virtual int saveFile( const char * fileName ) = 0;
   virtual int stop() = 0;
   virtual void groupPins( const char * groupName, int pinType, bool isInput ) = 0;
   virtual gxAudioCard * getAudioCard() = 0;

   virtual int loadString( const char * str ) = 0;
   virtual int saveString( std::string * str ) = 0;

   virtual gxProperties & getProperties() = 0;

private:
   gxAudioFilter( const gxAudioFilter & rhs);
   gxAudioFilter & operator=( const gxAudioFilter & rhs);
};
#endif

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