/* libSoX test code    copyright (c) 2006 robs@users.sourceforge.net * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General * Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifdef NDEBUG /* Enable assert always. */#undef NDEBUG /* Must undef above assert.h or other that might include it. */#endif#include <assert.h>#include <math.h>#include "sox.h" #define TEST_UINT(bits) \  uint##bits = 0; \  sample = SOX_UNSIGNED_TO_SAMPLE(bits,uint##bits); \  assert(sample == SOX_SAMPLE_MIN); \  uint##bits = SOX_SAMPLE_TO_UNSIGNED(bits,sample, clips); \  assert(uint##bits == 0 && clips == 0); \ \  uint##bits = 1; \  sample = SOX_UNSIGNED_TO_SAMPLE(bits,uint##bits); \  assert(sample > SOX_SAMPLE_MIN && sample < 0); \  uint##bits = SOX_SAMPLE_TO_UNSIGNED(bits,sample, clips); \  assert(uint##bits == 1 && clips == 0); \ \  uint##bits = SOX_INT_MAX(bits); \  sample = SOX_UNSIGNED_TO_SAMPLE(bits,uint##bits); \  assert(sample * SOX_INT_MAX(bits) == SOX_UNSIGNED_TO_SAMPLE(bits,1)); \  uint##bits = SOX_SAMPLE_TO_UNSIGNED(bits,sample, clips); \  assert(uint##bits == SOX_INT_MAX(bits) && clips == 0); \ \  sample =SOX_UNSIGNED_TO_SAMPLE(bits,1)+SOX_UNSIGNED_TO_SAMPLE(bits,SOX_INT_MAX(bits))/2; \  uint##bits = SOX_SAMPLE_TO_UNSIGNED(bits,sample, clips); \  assert(uint##bits == 1 && clips == 0); \ \  sample = SOX_UNSIGNED_TO_SAMPLE(bits,1)+SOX_UNSIGNED_TO_SAMPLE(bits,SOX_INT_MAX(bits))/2-1; \  uint##bits = SOX_SAMPLE_TO_UNSIGNED(bits,sample, clips); \  assert(uint##bits == 0 && clips == 0); \ \  uint##bits = (0^SOX_INT_MIN(bits)); \  sample = SOX_UNSIGNED_TO_SAMPLE(bits,uint##bits); \  assert(sample == 0); \  uint##bits = SOX_SAMPLE_TO_UNSIGNED(bits,sample, clips); \  assert(uint##bits == (0^SOX_INT_MIN(bits)) && clips == 0); \ \  uint##bits = ((0^SOX_INT_MIN(bits))+1); \  sample = SOX_UNSIGNED_TO_SAMPLE(bits,uint##bits); \  assert(sample > 0 && sample < SOX_SAMPLE_MAX); \  uint##bits = SOX_SAMPLE_TO_UNSIGNED(bits,sample, clips); \  assert(uint##bits == ((0^SOX_INT_MIN(bits))+1) && clips == 0); \ \  uint##bits = SOX_UINT_MAX(bits); \  sample = SOX_UNSIGNED_TO_SAMPLE(bits,uint##bits); \  assert(sample == SOX_INT_MAX(bits) * SOX_UNSIGNED_TO_SAMPLE(bits,((0^SOX_INT_MIN(bits))+1))); \  uint##bits = SOX_SAMPLE_TO_UNSIGNED(bits,sample, clips); \  assert(uint##bits == SOX_UINT_MAX(bits) && clips == 0); \ \  sample =SOX_UNSIGNED_TO_SAMPLE(bits,SOX_UINT_MAX(bits))+SOX_UNSIGNED_TO_SAMPLE(bits,((0^SOX_INT_MIN(bits))+1))/2-1; \  uint##bits = SOX_SAMPLE_TO_UNSIGNED(bits,sample, clips); \  assert(uint##bits == SOX_UINT_MAX(bits) && clips == 0); \ \  sample = SOX_UNSIGNED_TO_SAMPLE(bits,SOX_UINT_MAX(bits))+SOX_UNSIGNED_TO_SAMPLE(bits,((0^SOX_INT_MIN(bits))+1))/2; \  uint##bits = SOX_SAMPLE_TO_UNSIGNED(bits,sample, clips); \  assert(uint##bits == SOX_UINT_MAX(bits) && --clips == 0); \ \  sample = SOX_SAMPLE_MAX; \  uint##bits = SOX_SAMPLE_TO_UNSIGNED(bits,sample, clips); \  assert(uint##bits == SOX_UINT_MAX(bits) && --clips == 0); \ #define TEST_SINT(bits) \  int##bits = SOX_INT_MIN(bits); \  sample = SOX_SIGNED_TO_SAMPLE(bits,int##bits); \  assert(sample == SOX_SAMPLE_MIN); \  int##bits##_2 = SOX_SAMPLE_TO_SIGNED(bits,sample, clips); \  assert(int##bits##_2 == int##bits && clips == 0); \ \  int##bits = SOX_INT_MIN(bits)+1; \  sample = SOX_SIGNED_TO_SAMPLE(bits,int##bits); \  assert(sample > SOX_SAMPLE_MIN && sample < 0); \  int##bits##_2 = SOX_SAMPLE_TO_SIGNED(bits,sample, clips); \  assert(int##bits##_2 == int##bits && clips == 0); \ \  int##bits = SOX_UINT_MAX(bits) /* i.e. -1 */; \  sample = SOX_SIGNED_TO_SAMPLE(bits,int##bits); \  assert(sample * SOX_INT_MAX(bits) == SOX_SIGNED_TO_SAMPLE(bits,SOX_INT_MIN(bits)+1)); \  int##bits##_2 = SOX_SAMPLE_TO_SIGNED(bits,sample, clips); \  assert(int##bits##_2 == int##bits && clips == 0); \ \  int##bits = SOX_INT_MIN(bits)+1; \  sample =SOX_UNSIGNED_TO_SAMPLE(bits,1)+SOX_UNSIGNED_TO_SAMPLE(bits,SOX_INT_MAX(bits))/2; \  int##bits##_2 = SOX_SAMPLE_TO_SIGNED(bits,sample, clips); \  assert(int##bits##_2 == int##bits && clips == 0); \ \  int##bits = SOX_INT_MIN(bits); \  sample = SOX_UNSIGNED_TO_SAMPLE(bits,1)+SOX_UNSIGNED_TO_SAMPLE(bits,SOX_INT_MAX(bits))/2-1; \  int##bits##_2 = SOX_SAMPLE_TO_SIGNED(bits,sample, clips); \  assert(int##bits##_2 == int##bits && clips == 0); \ \  int##bits = 0; \  sample = SOX_SIGNED_TO_SAMPLE(bits,int##bits); \  assert(sample == 0); \  int##bits##_2 = SOX_SAMPLE_TO_SIGNED(bits,sample, clips); \  assert(int##bits##_2 == int##bits && clips == 0); \ \  int##bits = 1; \  sample = SOX_SIGNED_TO_SAMPLE(bits,int##bits); \  assert(sample > 0 && sample < SOX_SAMPLE_MAX); \  int##bits##_2 = SOX_SAMPLE_TO_SIGNED(bits,sample, clips); \  assert(int##bits##_2 == int##bits && clips == 0); \ \  int##bits = SOX_INT_MAX(bits); \  sample = SOX_SIGNED_TO_SAMPLE(bits,int##bits); \  assert(sample == SOX_INT_MAX(bits) * SOX_SIGNED_TO_SAMPLE(bits,1)); \  int##bits##_2 = SOX_SAMPLE_TO_SIGNED(bits,sample, clips); \  assert(int##bits##_2 == int##bits && clips == 0); \ \  sample =SOX_UNSIGNED_TO_SAMPLE(bits,SOX_UINT_MAX(bits))+SOX_UNSIGNED_TO_SAMPLE(bits,((0^SOX_INT_MIN(bits))+1))/2-1; \  int##bits##_2 = SOX_SAMPLE_TO_SIGNED(bits,sample, clips); \  assert(int##bits##_2 == int##bits && clips == 0); \ \  sample =SOX_UNSIGNED_TO_SAMPLE(bits,SOX_UINT_MAX(bits))+SOX_UNSIGNED_TO_SAMPLE(bits,((0^SOX_INT_MIN(bits))+1))/2; \  int##bits##_2 = SOX_SAMPLE_TO_SIGNED(bits,sample, clips); \  assert(int##bits##_2 == int##bits && --clips == 0); \ \  sample = SOX_SAMPLE_MAX; \  int##bits##_2 = SOX_SAMPLE_TO_SIGNED(bits,sample, clips); \  assert(int##bits##_2 == int##bits && --clips == 0); int main(void){  sox_int8_t int8;  sox_int16_t int16;  sox_int24_t int24;   sox_uint8_t uint8;  sox_uint16_t uint16;  sox_uint24_t uint24;   sox_int8_t int8_2;  sox_int16_t int16_2;  sox_int24_t int24_2;   sox_sample_t sample;  size_t clips = 0;   double d;  SOX_SAMPLE_LOCALS;   TEST_UINT(8)  TEST_UINT(16)  TEST_UINT(24)   TEST_SINT(8)  TEST_SINT(16)  TEST_SINT(24)   d = -1.000000001;  sample = SOX_FLOAT_64BIT_TO_SAMPLE(d, clips);  assert(sample == SOX_SAMPLE_MIN && --clips == 0);   d = -1;  sample = SOX_FLOAT_64BIT_TO_SAMPLE(d, clips);  assert(sample == SOX_SAMPLE_MIN && clips == 0);  d = SOX_SAMPLE_TO_FLOAT_64BIT(sample,clips);  assert(d == -1 && clips == 0);   d = 1;  sample = SOX_FLOAT_64BIT_TO_SAMPLE(d, clips);  assert(sample == SOX_SAMPLE_MAX && clips == 0);  d = SOX_SAMPLE_TO_FLOAT_64BIT(sample,clips);  assert(fabs(d - 1) < 1e-9 && clips == 0);   d = 1.0000000001;  sample = SOX_FLOAT_64BIT_TO_SAMPLE(d, clips);  assert(sample == SOX_SAMPLE_MAX && --clips == 0);   return 0;}