Chris@41: /*
Chris@41: ** Copyright (c) 2002-2016, Erik de Castro Lopo <erikd@mega-nerd.com>
Chris@41: ** All rights reserved.
Chris@41: **
Chris@41: ** This code is released under 2-clause BSD license. Please see the
Chris@41: ** file at : https://github.com/erikd/libsamplerate/blob/master/COPYING
Chris@41: */
Chris@41: 
Chris@41: #define	ABS(a)			(((a) < 0) ? - (a) : (a))
Chris@41: #define MIN(a,b)		(((a) < (b)) ? (a) : (b))
Chris@41: #define	MAX(a,b)		(((a) >= (b)) ? (a) : (b))
Chris@41: 
Chris@41: #define	ARRAY_LEN(x)	((int) (sizeof (x) / sizeof ((x) [0])))
Chris@41: 
Chris@41: void gen_windowed_sines (int freq_count, const double *freqs, double max, float *output, int output_len) ;
Chris@41: 
Chris@41: void save_oct_float (char *filename, float *input, int in_len, float *output, int out_len) ;
Chris@41: void save_oct_double (char *filename, double *input, int in_len, double *output, int out_len) ;
Chris@41: 
Chris@41: void interleave_data (const float *in, float *out, int frames, int channels) ;
Chris@41: 
Chris@41: void deinterleave_data (const float *in, float *out, int frames, int channels) ;
Chris@41: 
Chris@41: void reverse_data (float *data, int datalen) ;
Chris@41: 
Chris@41: double calculate_snr (float *data, int len, int expected_peaks) ;
Chris@41: 
Chris@41: const char * get_cpu_name (void) ;
Chris@41: 
Chris@41: #if OS_IS_WIN32
Chris@41: /*
Chris@41: **	Extra Win32 hacks.
Chris@41: **
Chris@41: **	Despite Microsoft claim of windows being POSIX compatibile it has '_sleep'
Chris@41: **	instead of 'sleep'.
Chris@41: */
Chris@41: 
Chris@41: #define sleep _sleep
Chris@41: #endif
Chris@41: