| /****************************************************************************** |
| * |
| * Copyright 2022 Google LLC |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at: |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| ******************************************************************************/ |
| |
| #if (__ARM_FEATURE_SIMD32 && !(__GNUC__ < 10) || defined(TEST_ARM)) |
| |
| #ifndef TEST_ARM |
| |
| #include <arm_acle.h> |
| |
| static inline int16x2_t __pkhbt(int16x2_t a, int16x2_t b) |
| { |
| int16x2_t r; |
| __asm("pkhbt %0, %1, %2" : "=r" (r) : "r" (a), "r" (b)); |
| return r; |
| } |
| |
| #endif /* TEST_ARM */ |
| |
| |
| /** |
| * Import |
| */ |
| |
| static inline int32_t filter_hp50(struct lc3_ltpf_hp50_state *, int32_t); |
| static inline float dot(const int16_t *, const int16_t *, int); |
| |
| |
| /** |
| * Resample from 8 / 16 / 32 KHz to 12.8 KHz Template |
| */ |
| #if !defined(resample_8k_12k8) || !defined(resample_16k_12k8) \ |
| || !defined(resample_32k_12k8) |
| static inline void arm_resample_x64k_12k8(const int p, const int16x2_t *h, |
| struct lc3_ltpf_hp50_state *hp50, const int16x2_t *x, int16_t *y, int n) |
| { |
| const int w = 40 / p; |
| |
| x -= w; |
| |
| for (int i = 0; i < 5*n; i += 5) { |
| const int16x2_t *hn = h + (i % (2*p)) * (48 / p); |
| const int16x2_t *xn = x + (i / (2*p)); |
| |
| int32_t un = __smlad(*(xn++), *(hn++), 0); |
| |
| for (int k = 0; k < w; k += 5) { |
| un = __smlad(*(xn++), *(hn++), un); |
| un = __smlad(*(xn++), *(hn++), un); |
| un = __smlad(*(xn++), *(hn++), un); |
| un = __smlad(*(xn++), *(hn++), un); |
| un = __smlad(*(xn++), *(hn++), un); |
| } |
| |
| int32_t yn = filter_hp50(hp50, un); |
| *(y++) = (yn + (1 << 15)) >> 16; |
| } |
| } |
| #endif |
| |
| /** |
| * Resample from 24 / 48 KHz to 12.8 KHz Template |
| */ |
| #if !defined(resample_24k_12k8) || !defined(resample_48k_12k8) |
| static inline void arm_resample_x192k_12k8(const int p, const int16x2_t *h, |
| struct lc3_ltpf_hp50_state *hp50, const int16x2_t *x, int16_t *y, int n) |
| { |
| const int w = 120 / p; |
| |
| x -= w; |
| |
| for (int i = 0; i < 15*n; i += 15) { |
| const int16x2_t *hn = h + (i % (2*p)) * (128 / p); |
| const int16x2_t *xn = x + (i / (2*p)); |
| |
| int32_t un = __smlad(*(xn++), *(hn++), 0); |
| |
| for (int k = 0; k < w; k += 15) { |
| un = __smlad(*(xn++), *(hn++), un); |
| un = __smlad(*(xn++), *(hn++), un); |
| un = __smlad(*(xn++), *(hn++), un); |
| un = __smlad(*(xn++), *(hn++), un); |
| un = __smlad(*(xn++), *(hn++), un); |
| un = __smlad(*(xn++), *(hn++), un); |
| un = __smlad(*(xn++), *(hn++), un); |
| un = __smlad(*(xn++), *(hn++), un); |
| un = __smlad(*(xn++), *(hn++), un); |
| un = __smlad(*(xn++), *(hn++), un); |
| un = __smlad(*(xn++), *(hn++), un); |
| un = __smlad(*(xn++), *(hn++), un); |
| un = __smlad(*(xn++), *(hn++), un); |
| un = __smlad(*(xn++), *(hn++), un); |
| un = __smlad(*(xn++), *(hn++), un); |
| } |
| |
| int32_t yn = filter_hp50(hp50, un); |
| *(y++) = (yn + (1 << 15)) >> 16; |
| } |
| } |
| #endif |
| |
| /** |
| * Resample from 8 Khz to 12.8 KHz |
| */ |
| #ifndef resample_8k_12k8 |
| |
| static void arm_resample_8k_12k8( |
| struct lc3_ltpf_hp50_state *hp50, const int16_t *x, int16_t *y, int n) |
| { |
| static const int16_t alignas(int32_t) h[2*8*12] = { |
| 0, 214, 417, -1052, -4529, 26233, -4529, -1052, 417, 214, 0, 0, |
| 0, 180, 0, -1522, -2427, 24506, -5289, 0, 763, 156, -28, 0, |
| 0, 92, -323, -1361, 0, 19741, -3885, 1317, 861, 0, -61, 0, |
| 0, 0, -457, -752, 1873, 13068, 0, 2389, 598, -213, -79, 0, |
| 0, -61, -398, 0, 2686, 5997, 5997, 2686, 0, -398, -61, 0, |
| 0, -79, -213, 598, 2389, 0, 13068, 1873, -752, -457, 0, 0, |
| 0, -61, 0, 861, 1317, -3885, 19741, 0, -1361, -323, 92, 0, |
| 0, -28, 156, 763, 0, -5289, 24506, -2427, -1522, 0, 180, 0, |
| 0, 0, 214, 417, -1052, -4529, 26233, -4529, -1052, 417, 214, 0, |
| 0, 0, 180, 0, -1522, -2427, 24506, -5289, 0, 763, 156, -28, |
| 0, 0, 92, -323, -1361, 0, 19741, -3885, 1317, 861, 0, -61, |
| 0, 0, 0, -457, -752, 1873, 13068, 0, 2389, 598, -213, -79, |
| 0, 0, -61, -398, 0, 2686, 5997, 5997, 2686, 0, -398, -61, |
| 0, 0, -79, -213, 598, 2389, 0, 13068, 1873, -752, -457, 0, |
| 0, 0, -61, 0, 861, 1317, -3885, 19741, 0, -1361, -323, 92, |
| 0, 0, -28, 156, 763, 0, -5289, 24506, -2427, -1522, 0, 180, |
| }; |
| |
| arm_resample_x64k_12k8( |
| 8, (const int16x2_t *)h, hp50, (int16x2_t *)x, y, n); |
| } |
| |
| #ifndef TEST_ARM |
| #define resample_8k_12k8 arm_resample_8k_12k8 |
| #endif |
| |
| #endif /* resample_8k_12k8 */ |
| |
| /** |
| * Resample from 16 Khz to 12.8 KHz |
| */ |
| #ifndef resample_16k_12k8 |
| |
| static void arm_resample_16k_12k8( |
| struct lc3_ltpf_hp50_state *hp50, const int16_t *x, int16_t *y, int n) |
| { |
| static const int16_t alignas(int32_t) h[2*4*24] = { |
| |
| 0, -61, 214, -398, 417, 0, -1052, 2686, |
| -4529, 5997, 26233, 5997, -4529, 2686, -1052, 0, |
| 417, -398, 214, -61, 0, 0, 0, 0, |
| |
| |
| 0, -79, 180, -213, 0, 598, -1522, 2389, |
| -2427, 0, 24506, 13068, -5289, 1873, 0, -752, |
| 763, -457, 156, 0, -28, 0, 0, 0, |
| |
| |
| 0, -61, 92, 0, -323, 861, -1361, 1317, |
| 0, -3885, 19741, 19741, -3885, 0, 1317, -1361, |
| 861, -323, 0, 92, -61, 0, 0, 0, |
| |
| 0, -28, 0, 156, -457, 763, -752, 0, |
| 1873, -5289, 13068, 24506, 0, -2427, 2389, -1522, |
| 598, 0, -213, 180, -79, 0, 0, 0, |
| |
| |
| 0, 0, -61, 214, -398, 417, 0, -1052, |
| 2686, -4529, 5997, 26233, 5997, -4529, 2686, -1052, |
| 0, 417, -398, 214, -61, 0, 0, 0, |
| |
| |
| 0, 0, -79, 180, -213, 0, 598, -1522, |
| 2389, -2427, 0, 24506, 13068, -5289, 1873, 0, |
| -752, 763, -457, 156, 0, -28, 0, 0, |
| |
| |
| 0, 0, -61, 92, 0, -323, 861, -1361, |
| 1317, 0, -3885, 19741, 19741, -3885, 0, 1317, |
| -1361, 861, -323, 0, 92, -61, 0, 0, |
| |
| 0, 0, -28, 0, 156, -457, 763, -752, |
| 0, 1873, -5289, 13068, 24506, 0, -2427, 2389, |
| -1522, 598, 0, -213, 180, -79, 0, 0, |
| }; |
| |
| arm_resample_x64k_12k8( |
| 4, (const int16x2_t *)h, hp50, (int16x2_t *)x, y, n); |
| } |
| |
| #ifndef TEST_ARM |
| #define resample_16k_12k8 arm_resample_16k_12k8 |
| #endif |
| |
| #endif /* resample_16k_12k8 */ |
| |
| /** |
| * Resample from 32 Khz to 12.8 KHz |
| */ |
| #ifndef resample_32k_12k8 |
| |
| static void arm_resample_32k_12k8( |
| struct lc3_ltpf_hp50_state *hp50, const int16_t *x, int16_t *y, int n) |
| { |
| static const int16_t alignas(int32_t) h[2*2*48] = { |
| |
| 0, -30, -31, 46, 107, 0, -199, -162, |
| 209, 430, 0, -681, -526, 658, 1343, 0, |
| -2264, -1943, 2999, 9871, 13116, 9871, 2999, -1943, |
| -2264, 0, 1343, 658, -526, -681, 0, 430, |
| 209, -162, -199, 0, 107, 46, -31, -30, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| |
| 0, -14, -39, 0, 90, 78, -106, -229, |
| 0, 382, 299, -376, -761, 0, 1194, 937, |
| -1214, -2644, 0, 6534, 12253, 12253, 6534, 0, |
| -2644, -1214, 937, 1194, 0, -761, -376, 299, |
| 382, 0, -229, -106, 78, 90, 0, -39, |
| -14, 0, 0, 0, 0, 0, 0, 0, |
| |
| 0, 0, -30, -31, 46, 107, 0, -199, |
| -162, 209, 430, 0, -681, -526, 658, 1343, |
| 0, -2264, -1943, 2999, 9871, 13116, 9871, 2999, |
| -1943, -2264, 0, 1343, 658, -526, -681, 0, |
| 430, 209, -162, -199, 0, 107, 46, -31, |
| -30, 0, 0, 0, 0, 0, 0, 0, |
| |
| 0, 0, -14, -39, 0, 90, 78, -106, |
| -229, 0, 382, 299, -376, -761, 0, 1194, |
| 937, -1214, -2644, 0, 6534, 12253, 12253, 6534, |
| 0, -2644, -1214, 937, 1194, 0, -761, -376, |
| 299, 382, 0, -229, -106, 78, 90, 0, |
| -39, -14, 0, 0, 0, 0, 0, 0, |
| }; |
| |
| arm_resample_x64k_12k8( |
| 2, (const int16x2_t *)h, hp50, (int16x2_t *)x, y, n); |
| } |
| |
| #ifndef TEST_ARM |
| #define resample_32k_12k8 arm_resample_32k_12k8 |
| #endif |
| |
| #endif /* resample_32k_12k8 */ |
| |
| /** |
| * Resample from 24 Khz to 12.8 KHz |
| */ |
| #ifndef resample_24k_12k8 |
| |
| static void arm_resample_24k_12k8( |
| struct lc3_ltpf_hp50_state *hp50, const int16_t *x, int16_t *y, int n) |
| { |
| static const int16_t alignas(int32_t) h[2*8*32] = { |
| |
| 0, -50, 19, 143, -93, -290, 278, 485, |
| -658, -701, 1396, 901, -3019, -1042, 10276, 17488, |
| 10276, -1042, -3019, 901, 1396, -701, -658, 485, |
| 278, -290, -93, 143, 19, -50, 0, 0, |
| |
| 0, -46, 0, 141, -45, -305, 185, 543, |
| -501, -854, 1153, 1249, -2619, -1908, 8712, 17358, |
| 11772, 0, -3319, 480, 1593, -504, -796, 399, |
| 367, -261, -142, 138, 40, -52, -5, 0, |
| |
| 0, -41, -17, 133, 0, -304, 91, 574, |
| -334, -959, 878, 1516, -2143, -2590, 7118, 16971, |
| 13161, 1202, -3495, 0, 1731, -267, -908, 287, |
| 445, -215, -188, 125, 62, -52, -12, 0, |
| |
| 0, -34, -30, 120, 41, -291, 0, 577, |
| -164, -1015, 585, 1697, -1618, -3084, 5534, 16337, |
| 14406, 2544, -3526, -523, 1800, 0, -985, 152, |
| 509, -156, -230, 104, 83, -48, -19, 0, |
| |
| 0, -26, -41, 103, 76, -265, -83, 554, |
| 0, -1023, 288, 1791, -1070, -3393, 3998, 15474, |
| 15474, 3998, -3393, -1070, 1791, 288, -1023, 0, |
| 554, -83, -265, 76, 103, -41, -26, 0, |
| |
| 0, -19, -48, 83, 104, -230, -156, 509, |
| 152, -985, 0, 1800, -523, -3526, 2544, 14406, |
| 16337, 5534, -3084, -1618, 1697, 585, -1015, -164, |
| 577, 0, -291, 41, 120, -30, -34, 0, |
| |
| 0, -12, -52, 62, 125, -188, -215, 445, |
| 287, -908, -267, 1731, 0, -3495, 1202, 13161, |
| 16971, 7118, -2590, -2143, 1516, 878, -959, -334, |
| 574, 91, -304, 0, 133, -17, -41, 0, |
| |
| 0, -5, -52, 40, 138, -142, -261, 367, |
| 399, -796, -504, 1593, 480, -3319, 0, 11772, |
| 17358, 8712, -1908, -2619, 1249, 1153, -854, -501, |
| 543, 185, -305, -45, 141, 0, -46, 0, |
| |
| 0, 0, -50, 19, 143, -93, -290, 278, |
| 485, -658, -701, 1396, 901, -3019, -1042, 10276, |
| 17488, 10276, -1042, -3019, 901, 1396, -701, -658, |
| 485, 278, -290, -93, 143, 19, -50, 0, |
| |
| 0, 0, -46, 0, 141, -45, -305, 185, |
| 543, -501, -854, 1153, 1249, -2619, -1908, 8712, |
| 17358, 11772, 0, -3319, 480, 1593, -504, -796, |
| 399, 367, -261, -142, 138, 40, -52, -5, |
| |
| 0, 0, -41, -17, 133, 0, -304, 91, |
| 574, -334, -959, 878, 1516, -2143, -2590, 7118, |
| 16971, 13161, 1202, -3495, 0, 1731, -267, -908, |
| 287, 445, -215, -188, 125, 62, -52, -12, |
| |
| 0, 0, -34, -30, 120, 41, -291, 0, |
| 577, -164, -1015, 585, 1697, -1618, -3084, 5534, |
| 16337, 14406, 2544, -3526, -523, 1800, 0, -985, |
| 152, 509, -156, -230, 104, 83, -48, -19, |
| |
| 0, 0, -26, -41, 103, 76, -265, -83, |
| 554, 0, -1023, 288, 1791, -1070, -3393, 3998, |
| 15474, 15474, 3998, -3393, -1070, 1791, 288, -1023, |
| 0, 554, -83, -265, 76, 103, -41, -26, |
| |
| 0, 0, -19, -48, 83, 104, -230, -156, |
| 509, 152, -985, 0, 1800, -523, -3526, 2544, |
| 14406, 16337, 5534, -3084, -1618, 1697, 585, -1015, |
| -164, 577, 0, -291, 41, 120, -30, -34, |
| |
| 0, 0, -12, -52, 62, 125, -188, -215, |
| 445, 287, -908, -267, 1731, 0, -3495, 1202, |
| 13161, 16971, 7118, -2590, -2143, 1516, 878, -959, |
| -334, 574, 91, -304, 0, 133, -17, -41, |
| |
| 0, 0, -5, -52, 40, 138, -142, -261, |
| 367, 399, -796, -504, 1593, 480, -3319, 0, |
| 11772, 17358, 8712, -1908, -2619, 1249, 1153, -854, |
| -501, 543, 185, -305, -45, 141, 0, -46, |
| }; |
| |
| arm_resample_x192k_12k8( |
| 8, (const int16x2_t *)h, hp50, (int16x2_t *)x, y, n); |
| } |
| |
| #ifndef TEST_ARM |
| #define resample_24k_12k8 arm_resample_24k_12k8 |
| #endif |
| |
| #endif /* resample_24k_12k8 */ |
| |
| /** |
| * Resample from 48 Khz to 12.8 KHz |
| */ |
| #ifndef resample_48k_12k8 |
| |
| static void arm_resample_48k_12k8( |
| struct lc3_ltpf_hp50_state *hp50, const int16_t *x, int16_t *y, int n) |
| { |
| static const int16_t alignas(int32_t) h[2*4*64] = { |
| |
| 0, -13, -25, -20, 10, 51, 71, 38, |
| -47, -133, -145, -42, 139, 277, 242, 0, |
| -329, -511, -351, 144, 698, 895, 450, -535, |
| -1510, -1697, -521, 1999, 5138, 7737, 8744, 7737, |
| 5138, 1999, -521, -1697, -1510, -535, 450, 895, |
| 698, 144, -351, -511, -329, 0, 242, 277, |
| 139, -42, -145, -133, -47, 38, 71, 51, |
| 10, -20, -25, -13, 0, 0, 0, 0, |
| |
| 0, -9, -23, -24, 0, 41, 71, 52, |
| -23, -115, -152, -78, 92, 254, 272, 76, |
| -251, -493, -427, 0, 576, 900, 624, -262, |
| -1309, -1763, -954, 1272, 4356, 7203, 8679, 8169, |
| 5886, 2767, 0, -1542, -1660, -809, 240, 848, |
| 796, 292, -252, -507, -398, -82, 199, 288, |
| 183, 0, -130, -145, -71, 20, 69, 60, |
| 20, -15, -26, -17, -3, 0, 0, 0, |
| |
| 0, -6, -20, -26, -8, 31, 67, 62, |
| 0, -94, -152, -108, 45, 223, 287, 143, |
| -167, -454, -480, -134, 439, 866, 758, 0, |
| -1071, -1748, -1295, 601, 3559, 6580, 8485, 8485, |
| 6580, 3559, 601, -1295, -1748, -1071, 0, 758, |
| 866, 439, -134, -480, -454, -167, 143, 287, |
| 223, 45, -108, -152, -94, 0, 62, 67, |
| 31, -8, -26, -20, -6, 0, 0, 0, |
| |
| 0, -3, -17, -26, -15, 20, 60, 69, |
| 20, -71, -145, -130, 0, 183, 288, 199, |
| -82, -398, -507, -252, 292, 796, 848, 240, |
| -809, -1660, -1542, 0, 2767, 5886, 8169, 8679, |
| 7203, 4356, 1272, -954, -1763, -1309, -262, 624, |
| 900, 576, 0, -427, -493, -251, 76, 272, |
| 254, 92, -78, -152, -115, -23, 52, 71, |
| 41, 0, -24, -23, -9, 0, 0, 0, |
| |
| 0, 0, -13, -25, -20, 10, 51, 71, |
| 38, -47, -133, -145, -42, 139, 277, 242, |
| 0, -329, -511, -351, 144, 698, 895, 450, |
| -535, -1510, -1697, -521, 1999, 5138, 7737, 8744, |
| 7737, 5138, 1999, -521, -1697, -1510, -535, 450, |
| 895, 698, 144, -351, -511, -329, 0, 242, |
| 277, 139, -42, -145, -133, -47, 38, 71, |
| 51, 10, -20, -25, -13, 0, 0, 0, |
| |
| 0, 0, -9, -23, -24, 0, 41, 71, |
| 52, -23, -115, -152, -78, 92, 254, 272, |
| 76, -251, -493, -427, 0, 576, 900, 624, |
| -262, -1309, -1763, -954, 1272, 4356, 7203, 8679, |
| 8169, 5886, 2767, 0, -1542, -1660, -809, 240, |
| 848, 796, 292, -252, -507, -398, -82, 199, |
| 288, 183, 0, -130, -145, -71, 20, 69, |
| 60, 20, -15, -26, -17, -3, 0, 0, |
| |
| 0, 0, -6, -20, -26, -8, 31, 67, |
| 62, 0, -94, -152, -108, 45, 223, 287, |
| 143, -167, -454, -480, -134, 439, 866, 758, |
| 0, -1071, -1748, -1295, 601, 3559, 6580, 8485, |
| 8485, 6580, 3559, 601, -1295, -1748, -1071, 0, |
| 758, 866, 439, -134, -480, -454, -167, 143, |
| 287, 223, 45, -108, -152, -94, 0, 62, |
| 67, 31, -8, -26, -20, -6, 0, 0, |
| |
| 0, 0, -3, -17, -26, -15, 20, 60, |
| 69, 20, -71, -145, -130, 0, 183, 288, |
| 199, -82, -398, -507, -252, 292, 796, 848, |
| 240, -809, -1660, -1542, 0, 2767, 5886, 8169, |
| 8679, 7203, 4356, 1272, -954, -1763, -1309, -262, |
| 624, 900, 576, 0, -427, -493, -251, 76, |
| 272, 254, 92, -78, -152, -115, -23, 52, |
| 71, 41, 0, -24, -23, -9, 0, 0, |
| }; |
| |
| arm_resample_x192k_12k8( |
| 4, (const int16x2_t *)h, hp50, (int16x2_t *)x, y, n); |
| } |
| |
| #ifndef TEST_ARM |
| #define resample_48k_12k8 arm_resample_48k_12k8 |
| #endif |
| |
| #endif /* resample_48k_12k8 */ |
| |
| /** |
| * Return vector of correlations |
| */ |
| #ifndef correlate |
| |
| static void arm_correlate( |
| const int16_t *a, const int16_t *b, int n, float *y, int nc) |
| { |
| /* --- Check alignment of `b` --- */ |
| |
| if ((uintptr_t)b & 3) |
| *(y++) = dot(a, b--, n), nc--; |
| |
| /* --- Processing by pair --- */ |
| |
| for ( ; nc >= 2; nc -= 2) { |
| const int16x2_t *an = (const int16x2_t *)(a ); |
| const int16x2_t *bn = (const int16x2_t *)(b--); |
| |
| int16x2_t ax, b0, b1; |
| int64_t v0 = 0, v1 = 0; |
| |
| b1 = (int16x2_t)*(b--) << 16; |
| |
| for (int i = 0; i < (n >> 4); i++ ) |
| for (int j = 0; j < 4; j++) { |
| |
| ax = *(an++), b0 = *(bn++); |
| v0 = __smlald (ax, b0, v0); |
| v1 = __smlaldx(ax, __pkhbt(b0, b1), v1); |
| |
| ax = *(an++), b1 = *(bn++); |
| v0 = __smlald (ax, b1, v0); |
| v1 = __smlaldx(ax, __pkhbt(b1, b0), v1); |
| } |
| |
| *(y++) = (float)((int32_t)((v0 + (1 << 5)) >> 6)); |
| *(y++) = (float)((int32_t)((v1 + (1 << 5)) >> 6)); |
| } |
| |
| /* --- Odd element count --- */ |
| |
| if (nc > 0) |
| *(y++) = dot(a, b, n); |
| } |
| |
| #ifndef TEST_ARM |
| #define correlate arm_correlate |
| #endif |
| |
| #endif /* correlate */ |
| |
| #endif /* __ARM_FEATURE_SIMD32 */ |
