shithub: sox

Download patch

ref: e9d77091fa7ab50573d07ffdc1edd087d4891383
parent: 0ed210cd8f05bf74c9488e72d1985f474fe62853
author: robs <robs>
date: Sun Feb 4 15:29:56 EST 2007 

Added unit tests for st_sample <--> PCM conversions.


--- /dev/null
+++ b/src/st_sample_test.c
@@ -1,0 +1,177 @@
+#define DEBUG
+#include <assert.h>
+#include "st.h"
+
+#define TEST_UINT(bits) \
+  uint##bits = 0; \
+  sample = ST_UNSIGNED_TO_SAMPLE(bits,uint##bits); \
+  assert(sample == ST_SAMPLE_MIN); \
+  uint##bits = ST_SAMPLE_TO_UNSIGNED(bits,sample, clips); \
+  assert(uint##bits == 0 && clips == 0); \
+ \
+  uint##bits = 1; \
+  sample = ST_UNSIGNED_TO_SAMPLE(bits,uint##bits); \
+  assert(sample > ST_SAMPLE_MIN && sample < 0); \
+  uint##bits = ST_SAMPLE_TO_UNSIGNED(bits,sample, clips); \
+  assert(uint##bits == 1 && clips == 0); \
+ \
+  uint##bits = ST_INT_MAX(bits); \
+  sample = ST_UNSIGNED_TO_SAMPLE(bits,uint##bits); \
+  assert(sample * ST_INT_MAX(bits) == ST_UNSIGNED_TO_SAMPLE(bits,1)); \
+  uint##bits = ST_SAMPLE_TO_UNSIGNED(bits,sample, clips); \
+  assert(uint##bits == ST_INT_MAX(bits) && clips == 0); \
+ \
+  sample =ST_UNSIGNED_TO_SAMPLE(bits,1)+ST_UNSIGNED_TO_SAMPLE(bits,ST_INT_MAX(bits))/2; \
+  uint##bits = ST_SAMPLE_TO_UNSIGNED(bits,sample, clips); \
+  assert(uint##bits == 1 && clips == 0); \
+ \
+  sample = ST_UNSIGNED_TO_SAMPLE(bits,1)+ST_UNSIGNED_TO_SAMPLE(bits,ST_INT_MAX(bits))/2-1; \
+  uint##bits = ST_SAMPLE_TO_UNSIGNED(bits,sample, clips); \
+  assert(uint##bits == 0 && clips == 0); \
+ \
+  uint##bits = (0^ST_INT_MIN(bits)); \
+  sample = ST_UNSIGNED_TO_SAMPLE(bits,uint##bits); \
+  assert(sample == 0); \
+  uint##bits = ST_SAMPLE_TO_UNSIGNED(bits,sample, clips); \
+  assert(uint##bits == (0^ST_INT_MIN(bits)) && clips == 0); \
+ \
+  uint##bits = ((0^ST_INT_MIN(bits))+1); \
+  sample = ST_UNSIGNED_TO_SAMPLE(bits,uint##bits); \
+  assert(sample > 0 && sample < ST_SAMPLE_MAX); \
+  uint##bits = ST_SAMPLE_TO_UNSIGNED(bits,sample, clips); \
+  assert(uint##bits == ((0^ST_INT_MIN(bits))+1) && clips == 0); \
+ \
+  uint##bits = ST_UINT_MAX(bits); \
+  sample = ST_UNSIGNED_TO_SAMPLE(bits,uint##bits); \
+  assert(sample == ST_INT_MAX(bits) * ST_UNSIGNED_TO_SAMPLE(bits,((0^ST_INT_MIN(bits))+1))); \
+  uint##bits = ST_SAMPLE_TO_UNSIGNED(bits,sample, clips); \
+  assert(uint##bits == ST_UINT_MAX(bits) && clips == 0); \
+ \
+  sample =ST_UNSIGNED_TO_SAMPLE(bits,ST_UINT_MAX(bits))+ST_UNSIGNED_TO_SAMPLE(bits,((0^ST_INT_MIN(bits))+1))/2-1; \
+  uint##bits = ST_SAMPLE_TO_UNSIGNED(bits,sample, clips); \
+  assert(uint##bits == ST_UINT_MAX(bits) && clips == 0); \
+ \
+  sample = ST_UNSIGNED_TO_SAMPLE(bits,ST_UINT_MAX(bits))+ST_UNSIGNED_TO_SAMPLE(bits,((0^ST_INT_MIN(bits))+1))/2; \
+  uint##bits = ST_SAMPLE_TO_UNSIGNED(bits,sample, clips); \
+  assert(uint##bits == ST_UINT_MAX(bits) && --clips == 0); \
+ \
+  sample = ST_SAMPLE_MAX; \
+  uint##bits = ST_SAMPLE_TO_UNSIGNED(bits,sample, clips); \
+  assert(uint##bits == ST_UINT_MAX(bits) && --clips == 0); \
+
+#define TEST_SINT(bits) \
+  int##bits = ST_INT_MIN(bits); \
+  sample = ST_SIGNED_TO_SAMPLE(bits,int##bits); \
+  assert(sample == ST_SAMPLE_MIN); \
+  int##bits##_2 = ST_SAMPLE_TO_SIGNED(bits,sample, clips); \
+  assert(int##bits##_2 == int##bits && clips == 0); \
+ \
+  int##bits = ST_INT_MIN(bits)+1; \
+  sample = ST_SIGNED_TO_SAMPLE(bits,int##bits); \
+  assert(sample > ST_SAMPLE_MIN && sample < 0); \
+  int##bits##_2 = ST_SAMPLE_TO_SIGNED(bits,sample, clips); \
+  assert(int##bits##_2 == int##bits && clips == 0); \
+ \
+  int##bits = ST_UINT_MAX(bits) /* i.e. -1 */; \
+  sample = ST_SIGNED_TO_SAMPLE(bits,int##bits); \
+  assert(sample * ST_INT_MAX(bits) == ST_SIGNED_TO_SAMPLE(bits,ST_INT_MIN(bits)+1)); \
+  int##bits##_2 = ST_SAMPLE_TO_SIGNED(bits,sample, clips); \
+  assert(int##bits##_2 == int##bits && clips == 0); \
+ \
+  int##bits = ST_INT_MIN(bits)+1; \
+  sample =ST_UNSIGNED_TO_SAMPLE(bits,1)+ST_UNSIGNED_TO_SAMPLE(bits,ST_INT_MAX(bits))/2; \
+  int##bits##_2 = ST_SAMPLE_TO_SIGNED(bits,sample, clips); \
+  assert(int##bits##_2 == int##bits && clips == 0); \
+ \
+  int##bits = ST_INT_MIN(bits); \
+  sample = ST_UNSIGNED_TO_SAMPLE(bits,1)+ST_UNSIGNED_TO_SAMPLE(bits,ST_INT_MAX(bits))/2-1; \
+  int##bits##_2 = ST_SAMPLE_TO_SIGNED(bits,sample, clips); \
+  assert(int##bits##_2 == int##bits && clips == 0); \
+ \
+  int##bits = 0; \
+  sample = ST_SIGNED_TO_SAMPLE(bits,int##bits); \
+  assert(sample == 0); \
+  int##bits##_2 = ST_SAMPLE_TO_SIGNED(bits,sample, clips); \
+  assert(int##bits##_2 == int##bits && clips == 0); \
+ \
+  int##bits = 1; \
+  sample = ST_SIGNED_TO_SAMPLE(bits,int##bits); \
+  assert(sample > 0 && sample < ST_SAMPLE_MAX); \
+  int##bits##_2 = ST_SAMPLE_TO_SIGNED(bits,sample, clips); \
+  assert(int##bits##_2 == int##bits && clips == 0); \
+ \
+  int##bits = ST_INT_MAX(bits); \
+  sample = ST_SIGNED_TO_SAMPLE(bits,int##bits); \
+  assert(sample == ST_INT_MAX(bits) * ST_SIGNED_TO_SAMPLE(bits,1)); \
+  int##bits##_2 = ST_SAMPLE_TO_SIGNED(bits,sample, clips); \
+  assert(int##bits##_2 == int##bits && clips == 0); \
+ \
+  sample =ST_UNSIGNED_TO_SAMPLE(bits,ST_UINT_MAX(bits))+ST_UNSIGNED_TO_SAMPLE(bits,((0^ST_INT_MIN(bits))+1))/2-1; \
+  int##bits##_2 = ST_SAMPLE_TO_SIGNED(bits,sample, clips); \
+  assert(int##bits##_2 == int##bits && clips == 0); \
+ \
+  sample =ST_UNSIGNED_TO_SAMPLE(bits,ST_UINT_MAX(bits))+ST_UNSIGNED_TO_SAMPLE(bits,((0^ST_INT_MIN(bits))+1))/2; \
+  int##bits##_2 = ST_SAMPLE_TO_SIGNED(bits,sample, clips); \
+  assert(int##bits##_2 == int##bits && --clips == 0); \
+ \
+  sample = ST_SAMPLE_MAX; \
+  int##bits##_2 = ST_SAMPLE_TO_SIGNED(bits,sample, clips); \
+  assert(int##bits##_2 == int##bits && --clips == 0);
+
+int main()
+{
+  int8_t int8;
+  int16_t int16;
+  int24_t int24;
+
+  uint8_t uint8;
+  uint16_t uint16;
+  uint24_t uint24;
+
+  int8_t int8_2;
+  int16_t int16_2;
+  int24_t int24_2;
+
+  st_sample_t sample;
+  st_size_t clips = 0;
+
+  double d;
+
+  TEST_UINT(8)
+  TEST_UINT(16)
+  TEST_UINT(24)
+
+  TEST_SINT(8)
+  TEST_SINT(16)
+  TEST_SINT(24)
+
+  d = -1.0000000001;
+  sample = ST_FLOAT_DDWORD_TO_SAMPLE(d, clips);
+  assert(sample == -ST_SAMPLE_MAX && --clips == 0);
+
+  d = -1;
+  sample = ST_FLOAT_DDWORD_TO_SAMPLE(d, clips);
+  assert(sample == -ST_SAMPLE_MAX && clips == 0);
+  d = ST_SAMPLE_TO_FLOAT_DDWORD(sample,clips);
+  assert(d == -1 && clips == 0);
+
+  --sample;
+  d = ST_SAMPLE_TO_FLOAT_DDWORD(sample,clips);
+  assert(d == -1 && --clips == 0);
+
+  d = 1;
+  sample = ST_FLOAT_DDWORD_TO_SAMPLE(d, clips);
+  assert(sample == ST_SAMPLE_MAX && clips == 0);
+  d = ST_SAMPLE_TO_FLOAT_DDWORD(sample,clips);
+  assert(d == 1 && clips == 0);
+
+  d = 1.0000000001;
+  sample = ST_FLOAT_DDWORD_TO_SAMPLE(d, clips);
+  assert(sample == ST_SAMPLE_MAX && --clips == 0);
+
+  {
+    enum {MEANT_TO_FAIL};
+    assert(MEANT_TO_FAIL);
+  }
+  return 0;
+}