| /* |
| * Copyright (c) 2017 The WebRTC project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #ifndef WEBRTC_COMMON_AUDIO_SIGNAL_PROCESSING_DOT_PRODUCT_WITH_SCALE_H_ |
| #define WEBRTC_COMMON_AUDIO_SIGNAL_PROCESSING_DOT_PRODUCT_WITH_SCALE_H_ |
| |
| #include <string.h> |
| |
| #include "webrtc/typedefs.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| // Calculates the dot product between two (int16_t) vectors. |
| // |
| // Input: |
| // - vector1 : Vector 1 |
| // - vector2 : Vector 2 |
| // - vector_length : Number of samples used in the dot product |
| // - scaling : The number of right bit shifts to apply on each term |
| // during calculation to avoid overflow, i.e., the |
| // output will be in Q(-|scaling|) |
| // |
| // Return value : The dot product in Q(-scaling) |
| int32_t WebRtcSpl_DotProductWithScale(const int16_t* vector1, |
| const int16_t* vector2, |
| size_t length, |
| int scaling); |
| |
| #ifdef __cplusplus |
| } |
| #endif // __cplusplus |
| #endif // WEBRTC_COMMON_AUDIO_SIGNAL_PROCESSING_DOT_PRODUCT_WITH_SCALE_H_ |
