cannam@85: /*
cannam@85: ** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.com>
cannam@85: **
cannam@85: ** This program is free software; you can redistribute it and/or modify
cannam@85: ** it under the terms of the GNU General Public License as published by
cannam@85: ** the Free Software Foundation; either version 2 of the License, or
cannam@85: ** (at your option) any later version.
cannam@85: **
cannam@85: ** This program is distributed in the hope that it will be useful,
cannam@85: ** but WITHOUT ANY WARRANTY; without even the implied warranty of
cannam@85: ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
cannam@85: ** GNU General Public License for more details.
cannam@85: **
cannam@85: ** You should have received a copy of the GNU General Public License
cannam@85: ** along with this program; if not, write to the Free Software
cannam@85: ** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
cannam@85: */
cannam@85: 
cannam@85: #define	ABS(a)			(((a) < 0) ? - (a) : (a))
cannam@85: #define MIN(a,b)		(((a) < (b)) ? (a) : (b))
cannam@85: #define	MAX(a,b)		(((a) >= (b)) ? (a) : (b))
cannam@85: 
cannam@85: #define	ARRAY_LEN(x)	((int) (sizeof (x) / sizeof ((x) [0])))
cannam@85: 
cannam@85: void gen_windowed_sines (int freq_count, const double *freqs, double max, float *output, int output_len) ;
cannam@85: 
cannam@85: void save_oct_float (char *filename, float *input, int in_len, float *output, int out_len) ;
cannam@85: void save_oct_double (char *filename, double *input, int in_len, double *output, int out_len) ;
cannam@85: 
cannam@85: void interleave_data (const float *in, float *out, int frames, int channels) ;
cannam@85: 
cannam@85: void deinterleave_data (const float *in, float *out, int frames, int channels) ;
cannam@85: 
cannam@85: void reverse_data (float *data, int datalen) ;
cannam@85: 
cannam@85: double calculate_snr (float *data, int len, int expected_peaks) ;
cannam@85: 
cannam@85: const char * get_cpu_name (void) ;
cannam@85: 
cannam@85: #if OS_IS_WIN32
cannam@85: /*
cannam@85: **	Extra Win32 hacks.
cannam@85: **
cannam@85: **	Despite Microsoft claim of windows being POSIX compatibile it has '_sleep'
cannam@85: **	instead of 'sleep'.
cannam@85: */
cannam@85: 
cannam@85: #define sleep _sleep
cannam@85: #endif
cannam@85: