Audio.hxx

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/*
 * Copyright (c) 2001-2004 MUSIC TECHNOLOGY GROUP (MTG)
 *                         UNIVERSITAT POMPEU FABRA
 *
 *
 * 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 _AUDIO_HXX
#define _AUDIO_HXX

#include <typeinfo>

//
// Finally, we have decided to use a single buffer of TDatas, all
// previously existing data formats have proven useless and have
// been removed.
//


#include "DynamicType.hxx"
#include "Array.hxx"
#include "ProcessingData.hxx"
#include "ProcessingDataConfig.hxx"
#include "DataTypes.hxx"

namespace CLAM {


        class Audio: public ProcessingData {
        public:
                DYNAMIC_TYPE_USING_INTERFACE (Audio, 3, ProcessingData);

                DYN_ATTRIBUTE (0, public, TData, SampleRate);
                DYN_ATTRIBUTE (1, public, TTime, BeginTime);
                DYN_ATTRIBUTE (2, public, DataArray, Buffer);

        protected:

                void DefaultInit(); // To be used from the dynamic-type-generated constructor.

        public:
                ~Audio();
        
                int GetSize() const {return GetBuffer().Size();}

                TTime GetEndTime() const {return GetBeginTime()+GetTimeFromIndex(GetSize());}

                TTime GetDuration() const {return GetTimeFromIndex(GetSize());}

                void SetSize(int s);

                void SetEndTime(TTime time);

                void ResizeToEndTime(TTime time);

                void SetDuration(TTime duration);
                
                void ResizeToDuration(TTime duration);

                void GetAudioChunk(TTime beginTime, TTime endTime,Audio& chunk,bool configureChunk=true) const;

                void GetAudioChunk(TIndex beginIndex,TIndex endIndex,Audio& chunk, bool configureChunk=true) const;

                void GetAudioSlice(TTime beginTime, TTime endTime,Audio& slice,bool configureSlice=true) const;


                void GetAudioSlice( TIndex beginIndex, TIndex endIndex, Audio& slice, bool configureSlice=true) const;

                void SetAudioChunk(TTime beginTime,const Audio& chunk);

                void SetAudioChunk(TIndex beginIndex,const Audio& chunk);

        private:
                TTime GetTimeFromIndex(TIndex index) const;

                TIndex GetIndexFromTime(TTime time) const;
        };
};//namespace

#endif