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1 /* | 1 /* |
2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2014 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 <arm_neon.h> | 11 #include <arm_neon.h> |
12 #include <stdlib.h> | 12 #include <stdlib.h> |
13 | 13 |
14 #include "webrtc/base/checks.h" | 14 #include "webrtc/rtc_base/checks.h" |
15 #include "webrtc/common_audio/signal_processing/include/signal_processing_librar
y.h" | 15 #include "webrtc/common_audio/signal_processing/include/signal_processing_librar
y.h" |
16 | 16 |
17 // Maximum absolute value of word16 vector. C version for generic platforms. | 17 // Maximum absolute value of word16 vector. C version for generic platforms. |
18 int16_t WebRtcSpl_MaxAbsValueW16Neon(const int16_t* vector, size_t length) { | 18 int16_t WebRtcSpl_MaxAbsValueW16Neon(const int16_t* vector, size_t length) { |
19 int absolute = 0, maximum = 0; | 19 int absolute = 0, maximum = 0; |
20 | 20 |
21 RTC_DCHECK_GT(length, 0); | 21 RTC_DCHECK_GT(length, 0); |
22 | 22 |
23 const int16_t* p_start = vector; | 23 const int16_t* p_start = vector; |
24 size_t rest = length & 7; | 24 size_t rest = length & 7; |
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274 | 274 |
275 // Second part, do the remaining iterations (if any). | 275 // Second part, do the remaining iterations (if any). |
276 for (i = residual; i > 0; i--) { | 276 for (i = residual; i > 0; i--) { |
277 if (*p_start < minimum) | 277 if (*p_start < minimum) |
278 minimum = *p_start; | 278 minimum = *p_start; |
279 p_start++; | 279 p_start++; |
280 } | 280 } |
281 return minimum; | 281 return minimum; |
282 } | 282 } |
283 | 283 |
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