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authorjacqueline <me@jacqueline.id.au>2023-08-07 19:15:53 +1000
committerjacqueline <me@jacqueline.id.au>2023-08-07 19:15:53 +1000
commit40475b15e833dff496b17929024bddbbe10041b0 (patch)
tree0ca9b7cec8b087a25a872ed4a70dc9a7060feda2 /src/codecs
parentc38754401b95642b5e61fd273c2adf7d76a829fe (diff)
downloadtangara-fw-40475b15e833dff496b17929024bddbbe10041b0.tar.gz
Remove unused pcmconv impls
Diffstat (limited to 'src/codecs')
-rw-r--r--src/codecs/sample.cpp274
1 files changed, 0 insertions, 274 deletions
diff --git a/src/codecs/sample.cpp b/src/codecs/sample.cpp
deleted file mode 100644
index a1fe9bfd..00000000
--- a/src/codecs/sample.cpp
+++ /dev/null
@@ -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