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