Remove unused pcmconv impls

src/codecs/sample.cpp

@@ -1,274 +0,0 @@
-#include "sample.hpp"
-
-namespace audio {
-
-namespace sample {
-
-void siconv(int* dst, uint8_t* src, int bits, int skip, int count) {
-  int i, v, s, b;
-
-  b = (bits + 7) / 8;
-  s = sizeof(int) * 8 - bits;
-  while (count--) {
-    v = 0;
-    i = b;
-    switch (b) {
-      case 4:
-        v = src[--i];
-      case 3:
-        v = (v << 8) | src[--i];
-      case 2:
-        v = (v << 8) | src[--i];
-      case 1:
-        v = (v << 8) | src[--i];
-    }
-    *dst++ = v << s;
-    src += skip;
-  }
-}
-
-void Siconv(int* dst, uint8_t* src, int bits, int skip, int count) {
-  int i, v, s, b;
-
-  b = (bits + 7) / 8;
-  s = sizeof(int) * 8 - bits;
-  while (count--) {
-    v = 0;
-    i = 0;
-    switch (b) {
-      case 4:
-        v = src[i++];
-      case 3:
-        v = (v << 8) | src[i++];
-      case 2:
-        v = (v << 8) | src[i++];
-      case 1:
-        v = (v << 8) | src[i];
-    }
-    *dst++ = v << s;
-    src += skip;
-  }
-}
-
-void uiconv(int* dst, uint8_t* src, int bits, int skip, int count) {
-  int i, s, b;
-  uint32_t v;
-
-  b = (bits + 7) / 8;
-  s = sizeof(uint32_t) * 8 - bits;
-  while (count--) {
-    v = 0;
-    i = b;
-    switch (b) {
-      case 4:
-        v = src[--i];
-      case 3:
-        v = (v << 8) | src[--i];
-      case 2:
-        v = (v << 8) | src[--i];
-      case 1:
-        v = (v << 8) | src[--i];
-    }
-    *dst++ = (v << s) - (~0UL >> 1);
-    src += skip;
-  }
-}
-
-void Uiconv(int* dst, uint8_t* src, int bits, int skip, int count) {
-  int i, s, b;
-  uint32_t v;
-
-  b = (bits + 7) / 8;
-  s = sizeof(uint32_t) * 8 - bits;
-  while (count--) {
-    v = 0;
-    i = 0;
-    switch (b) {
-      case 4:
-        v = src[i++];
-      case 3:
-        v = (v << 8) | src[i++];
-      case 2:
-        v = (v << 8) | src[i++];
-      case 1:
-        v = (v << 8) | src[i];
-    }
-    *dst++ = (v << s) - (~0UL >> 1);
-    src += skip;
-  }
-}
-
-void ficonv(int* dst, uint8_t* src, int bits, int skip, int count) {
-  if (bits == 32) {
-    while (count--) {
-      float f;
-
-      f = *((float*)src), src += skip;
-      if (f > 1.0)
-        *dst++ = INT32_MAX;
-      else if (f < -1.0)
-        *dst++ = INT32_MIN;
-      else
-        *dst++ = f * ((float)INT32_MAX);
-    }
-  } else {
-    while (count--) {
-      double d;
-
-      d = *((double*)src), src += skip;
-      if (d > 1.0)
-        *dst++ = INT32_MAX;
-      else if (d < -1.0)
-        *dst++ = INT32_MIN;
-      else
-        *dst++ = d * ((double)INT32_MAX);
-    }
-  }
-}
-
-void aiconv(int* dst, uint8_t* src, int, int skip, int count) {
-  int t, seg;
-  uint8_t a;
-
-  while (count--) {
-    a = *src, src += skip;
-    a ^= 0x55;
-    t = (a & 0xf) << 4;
-    seg = (a & 0x70) >> 4;
-    switch (seg) {
-      case 0:
-        t += 8;
-        break;
-      case 1:
-        t += 0x108;
-        break;
-      default:
-        t += 0x108;
-        t <<= seg - 1;
-    }
-    t = (a & 0x80) ? t : -t;
-    *dst++ = t << (sizeof(int) * 8 - 16);
-  }
-}
-
-void µiconv(int* dst, uint8_t* src, int, int skip, int count) {
-  int t;
-  uint8_t u;
-
-  while (count--) {
-    u = *src, src += skip;
-    u = ~u;
-    t = ((u & 0xf) << 3) + 0x84;
-    t <<= (u & 0x70) >> 4;
-    t = u & 0x80 ? 0x84 - t : t - 0x84;
-    *dst++ = t << (sizeof(int) * 8 - 16);
-  }
-}
-
-void soconv(int* src, uint8_t* dst, int bits, int skip, int count) {
-  int i, v, s, b;
-
-  b = (bits + 7) / 8;
-  s = sizeof(int) * 8 - bits;
-  while (count--) {
-    v = *src++ >> s;
-    i = 0;
-    switch (b) {
-      case 4:
-        dst[i++] = v, v >>= 8;
-      case 3:
-        dst[i++] = v, v >>= 8;
-      case 2:
-        dst[i++] = v, v >>= 8;
-      case 1:
-        dst[i] = v;
-    }
-    dst += skip;
-  }
-}
-
-void Soconv(int* src, uint8_t* dst, int bits, int skip, int count) {
-  int i, v, s, b;
-
-  b = (bits + 7) / 8;
-  s = sizeof(int) * 8 - bits;
-  while (count--) {
-    v = *src++ >> s;
-    i = b;
-    switch (b) {
-      case 4:
-        dst[--i] = v, v >>= 8;
-      case 3:
-        dst[--i] = v, v >>= 8;
-      case 2:
-        dst[--i] = v, v >>= 8;
-      case 1:
-        dst[--i] = v;
-    }
-    dst += skip;
-  }
-}
-
-void uoconv(int* src, uint8_t* dst, int bits, int skip, int count) {
-  int i, s, b;
-  uint32_t v;
-
-  b = (bits + 7) / 8;
-  s = sizeof(uint32_t) * 8 - bits;
-  while (count--) {
-    v = ((~0UL >> 1) + *src++) >> s;
-    i = 0;
-    switch (b) {
-      case 4:
-        dst[i++] = v, v >>= 8;
-      case 3:
-        dst[i++] = v, v >>= 8;
-      case 2:
-        dst[i++] = v, v >>= 8;
-      case 1:
-        dst[i] = v;
-    }
-    dst += skip;
-  }
-}
-
-void Uoconv(int* src, uint8_t* dst, int bits, int skip, int count) {
-  int i, s, b;
-  uint32_t v;
-
-  b = (bits + 7) / 8;
-  s = sizeof(uint32_t) * 8 - bits;
-  while (count--) {
-    v = ((~0UL >> 1) + *src++) >> s;
-    i = b;
-    switch (b) {
-      case 4:
-        dst[--i] = v, v >>= 8;
-      case 3:
-        dst[--i] = v, v >>= 8;
-      case 2:
-        dst[--i] = v, v >>= 8;
-      case 1:
-        dst[--i] = v;
-    }
-    dst += skip;
-  }
-}
-
-void foconv(int* src, uint8_t* dst, int bits, int skip, int count) {
-  if (bits == 32) {
-    while (count--) {
-      *((float*)dst) = *src++ / ((float)INT32_MAX);
-      dst += skip;
-    }
-  } else {
-    while (count--) {
-      *((double*)dst) = *src++ / ((double)INT32_MAX);
-      dst += skip;
-    }
-  }
-}
-
-}  // namespace sample
-
-}  // namespace audio