jamie@141: /*
jamie@141:  * Copyright (C) 2012 Jamie Bullock
jamie@57:  *
jamie@141:  * Permission is hereby granted, free of charge, to any person obtaining a copy
jamie@141:  * of this software and associated documentation files (the "Software"), to
jamie@141:  * deal in the Software without restriction, including without limitation the
jamie@141:  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
jamie@141:  * sell copies of the Software, and to permit persons to whom the Software is
jamie@141:  * furnished to do so, subject to the following conditions:
jamie@57:  *
jamie@141:  * The above copyright notice and this permission notice shall be included in
jamie@141:  * all copies or substantial portions of the Software.
jamie@57:  *
jamie@141:  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
jamie@141:  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
jamie@141:  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
jamie@141:  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
jamie@141:  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
jamie@141:  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
jamie@141:  * IN THE SOFTWARE.
jamie@141:  *
jamie@57:  */
jamie@57: 
jamie@57: /** \file xtract_macros_private.h: defines useful internal macros */
jamie@57: 
jamie@57: #ifndef XTRACT_MACROS_PRIVATE_H
jamie@57: #define XTRACT_MACROS_PRIVATE_H
jamie@57: 
jamie@57: #include <stdio.h>
jamie@57: 
jamie@57: #define XTRACT_SQ(a) ((a) * (a))
jamie@57: #define XTRACT_MIN(a, b) ((a) < (b) ? (a) : (b))
jamie@57: #define XTRACT_MAX(a, b) ((a) > (b) ? (a) : (b))
jamie@57: #define XTRACT_VERY_SMALL_NUMBER 2e-42
jamie@57: #define XTRACT_LOG_LIMIT XTRACT_VERY_SMALL_NUMBER
jamie@73: #define XTRACT_LOG_LIMIT_DB -96.0
jamie@73: #define XTRACT_DB_SCALE_OFFSET 96.0
jamie@57: #define XTRACT_VERY_BIG_NUMBER 2e42
jamie@73: #define XTRACT_SR_UPPER_LIMIT 192000.0
jamie@73: #define XTRACT_SR_LOWER_LIMIT 22050.0
jamie@73: #define XTRACT_SR_DEFAULT 44100.0
jamie@73: #define XTRACT_FUNDAMENTAL_DEFAULT 440.0
jamie@57: #define XTRACT_CHECK_nyquist if(!nyquist) nyquist = XTRACT_SR_DEFAULT / 2
jamie@57: #define XTRACT_CHECK_q if(!q) q = XTRACT_SR_DEFAULT / N
jamie@120: #define XTRACT_GET_MAX max = result[m] > max ? result[m] : max
jamie@120: #define XTRACT_SET_FREQUENCY result[M + m] = n * q
jamie@59: #define XTRACT_IS_ODD(x) (x % 2 != 0 ? 1 : 0) 
jamie@57: #define XTRACT_SR_LIMIT SR_UPPER_LIMIT
jamie@57: #define XTRACT_FFT_BANDS_MIN 16
jamie@57: #define XTRACT_FFT_BANDS_MAX 65536
jamie@57: #define XTRACT_FFT_BANDS_DEF 1024
jamie@57: #define XTRACT_SPEC_BW_MIN 0.168 /* Minimum spectral bandwidth \
jamie@57: 				    (= SR_LOWER_LIMIT / FFT_BANDS_MAX*/ 
jamie@73: #define XTRACT_SPEC_BW_MAX 12000.0 /* SR_UPPER_LIMIT / FFT_BANDS_MIN */
jamie@57: #define XTRACT_SPEC_BW_DEF 43.066 /* SR_DEFAULT / FFT_BANDS_DEF */
jamie@98: #define XTRACT_ARRAY_ELEMENTS(_array) (sizeof(_array)/sizeof(_array[0]))
jamie@57: 
jamie@57: #endif