/**************************************************************************************

        PROTUX - THE FREE PROFESSIONAL AUDIO TOOLS FOR LINUX
        AUTHOR : See AUTHORS file for details

        This software is distributed under the terms of the GNU General Public License
        as specified in the COPYING file.

***************************************************************************************/
#ifndef PEAK_HH
#define PEAK_HH

#include <qprogressbar.h>
#include <mustux.h>
#include <stdio.h>

class Audio;

class Peak : public MustuxEngine
        {
        Q_OBJECT
        public:
                Peak();
                ~Peak();

                /** Instantiate a Peak Object and generate RAM buffers containing the peak images for
                *  zoom levels equal or greater than 6. Zoom levels between 1 and 5 uses "real-peak"
                *  images (peaks which are read direct from the audio file);
                */
                int build(Audio* audiosource, QProgressBar *monitorProgressBar = 0);

                /** Deallocate memory resources allocated by build() */
                int unbuild();

                /** Receives an empty buffer and fills it with peaks, according to the zoom level passed. */
                int fill_buffer(short* bufferToFill, long long startBlock, int numBlocksToFill , int hzoom);

                /** Display information about the RAM buffers on the console */
                void show_info();

                /** Save the ram buffers images to a .peak file */
                int save();

                /** Load the ram buffers from .peak file previously saved*/
                int load();


                static const int MAX_ZOOM_LEVELS=31;
                static const int MAX_ZOOM_USING_SOURCEFILE;
                static const int zoomStep[MAX_ZOOM_LEVELS];

        private :
                Audio* audioSource;
                FILE* audioSourceFile;
                long long audioSourceFileSize;
                long long audioSize;

                short* RAMBuffer[MAX_ZOOM_LEVELS];
                long long RAMBufferSize[MAX_ZOOM_LEVELS];
                short* tempRAMBuffer;
		int totalRAMBufferSize;

                int headerSize;
                int blockSize;
                int channels;
                int rate;
                int bitDepth;

        public slots:


        };

#include "Audio.hh"

#endif




//eof