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

*           SeamlessBufferManagement.h

*

*            Variable speed playback

*                  ver. 1.00

*

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



#ifndef _SBM_

#define _SBM_



/* use this define for interleaved PCM stream processing */

#define SBM_INTERLEAVED





/* Processing routine */

#ifdef SBM_INTERLEAVED

extern int SBM_Exe(short (*out)[2], const short (*in)[2], int n);

#else

extern int SBM_Exe(short* left, short* right, int n);

#endif

/* Call with left=right for mono processing (result will be placed into outleft)

*/



/* Setting levels for pitch shift and level modification */

extern void SBM_SetPar(float level);

/* Supported values for pitch {0..14}

0.5 - twice slower

1.0 - bypass

2.0 - twice faster

*/



/* Initialization */

extern void SBM_Init(int fs);



/*

Using Example:

SBM_Init(Fs);

SBM_SetPar(1.5f);  // set 50% speed up



SBM_Exe( out, in, n);       // process stereo PCM stream

*/



#endif // _SBM_