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Side by Side Diff: webrtc/modules/audio_coding/codecs/isac/fix/source/lattice.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) 2011 The WebRTC project authors. All Rights Reserved. 2 * Copyright (c) 2011 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 /* 11 /*
12 * lattice.c 12 * lattice.c
13 * 13 *
14 * Contains the normalized lattice filter routines (MA and AR) for iSAC codec 14 * Contains the normalized lattice filter routines (MA and AR) for iSAC codec
15 * 15 *
16 */ 16 */
17 17
18 #include "codec.h" 18 #include "codec.h"
19 #include "settings.h" 19 #include "settings.h"
20 #include "webrtc/base/sanitizer.h" 20 #include "webrtc/rtc_base/sanitizer.h"
21 21
22 #define LATTICE_MUL_32_32_RSFT16(a32a, a32b, b32) \ 22 #define LATTICE_MUL_32_32_RSFT16(a32a, a32b, b32) \
23 ((int32_t)(WEBRTC_SPL_MUL(a32a, b32) + (WEBRTC_SPL_MUL_16_32_RSFT16(a32b, b32) ))) 23 ((int32_t)(WEBRTC_SPL_MUL(a32a, b32) + (WEBRTC_SPL_MUL_16_32_RSFT16(a32b, b32) )))
24 /* This macro is FORBIDDEN to use elsewhere than in a function in this file and 24 /* This macro is FORBIDDEN to use elsewhere than in a function in this file and
25 its corresponding neon version. It might give unpredictable results, since a 25 its corresponding neon version. It might give unpredictable results, since a
26 general int32_t*int32_t multiplication results in a 64 bit value. 26 general int32_t*int32_t multiplication results in a 64 bit value.
27 The result is then shifted just 16 steps to the right, giving need for 48 27 The result is then shifted just 16 steps to the right, giving need for 48
28 bits, i.e. in the generel case, it will NOT fit in a int32_t. In the 28 bits, i.e. in the generel case, it will NOT fit in a int32_t. In the
29 cases used in here, the int32_t will be enough, since (for a good 29 cases used in here, the int32_t will be enough, since (for a good
30 reason) the involved multiplicands aren't big enough to overflow a 30 reason) the involved multiplicands aren't big enough to overflow a
(...skipping 282 matching lines...) Expand 10 before | Expand all | Expand 10 after
313 /* cannot use memcpy in the following */ 313 /* cannot use memcpy in the following */
314 314
315 for (i=0;i<ord_1;i++) 315 for (i=0;i<ord_1;i++)
316 { 316 {
317 stateGQ0[i] = ARgQ0vec[i]; 317 stateGQ0[i] = ARgQ0vec[i];
318 } 318 }
319 } 319 }
320 320
321 return; 321 return;
322 } 322 }
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