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Side by Side Diff: webrtc/modules/audio_processing/ns/nsx_core_neon.c

Issue 2974613003: base->rtc_base: Update .c, .mm and .java files. (Closed)
Patch Set: Created 3 years, 5 months ago
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1 /* 1 /*
2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. 2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
3 * 3 *
4 * Use of this source code is governed by a BSD-style license 4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source 5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found 6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may 7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree. 8 * be found in the AUTHORS file in the root of the source tree.
9 */ 9 */
10 10
11 #include "webrtc/modules/audio_processing/ns/nsx_core.h" 11 #include "webrtc/modules/audio_processing/ns/nsx_core.h"
12 12
13 #include <arm_neon.h> 13 #include <arm_neon.h>
14 14
15 #include "webrtc/base/checks.h" 15 #include "webrtc/rtc_base/checks.h"
16 16
17 // Constants to compensate for shifting signal log(2^shifts). 17 // Constants to compensate for shifting signal log(2^shifts).
18 const int16_t WebRtcNsx_kLogTable[9] = { 18 const int16_t WebRtcNsx_kLogTable[9] = {
19 0, 177, 355, 532, 710, 887, 1065, 1242, 1420 19 0, 177, 355, 532, 710, 887, 1065, 1242, 1420
20 }; 20 };
21 21
22 const int16_t WebRtcNsx_kCounterDiv[201] = { 22 const int16_t WebRtcNsx_kCounterDiv[201] = {
23 32767, 16384, 10923, 8192, 6554, 5461, 4681, 4096, 3641, 3277, 2979, 2731, 23 32767, 16384, 10923, 8192, 6554, 5461, 4681, 4096, 3641, 3277, 2979, 2731,
24 2521, 2341, 2185, 2048, 1928, 1820, 1725, 1638, 1560, 1489, 1425, 1365, 1311, 24 2521, 2341, 2185, 2048, 1928, 1820, 1725, 1638, 1560, 1489, 1425, 1365, 1311,
25 1260, 1214, 1170, 1130, 1092, 1057, 1024, 993, 964, 936, 910, 886, 862, 840, 25 1260, 1214, 1170, 1130, 1092, 1057, 1024, 993, 964, 936, 910, 886, 862, 840,
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597 p_start_out += 8; 597 p_start_out += 8;
598 } 598 }
599 int32x4_t tmp32_low = vmull_s16(vget_low_s16(window), vget_low_s16(buffer)); 599 int32x4_t tmp32_low = vmull_s16(vget_low_s16(window), vget_low_s16(buffer));
600 int32x4_t tmp32_high = vmull_s16(vget_high_s16(window), 600 int32x4_t tmp32_high = vmull_s16(vget_high_s16(window),
601 vget_high_s16(buffer)); 601 vget_high_s16(buffer));
602 602
603 int16x4_t result_low = vrshrn_n_s32(tmp32_low, 14); 603 int16x4_t result_low = vrshrn_n_s32(tmp32_low, 14);
604 int16x4_t result_high = vrshrn_n_s32(tmp32_high, 14); 604 int16x4_t result_high = vrshrn_n_s32(tmp32_high, 14);
605 vst1q_s16(p_start_out, vcombine_s16(result_low, result_high)); 605 vst1q_s16(p_start_out, vcombine_s16(result_low, result_high));
606 } 606 }
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