1 /******************************************************************************
2  *
3  *  Copyright 2022 Google LLC
4  *
5  *  Licensed under the Apache License, Version 2.0 (the "License");
6  *  you may not use this file except in compliance with the License.
7  *  You may obtain a copy of the License at:
8  *
9  *  http://www.apache.org/licenses/LICENSE-2.0
10  *
11  *  Unless required by applicable law or agreed to in writing, software
12  *  distributed under the License is distributed on an "AS IS" BASIS,
13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  *  See the License for the specific language governing permissions and
15  *  limitations under the License.
16  *
17  ******************************************************************************/
18 
19 #ifndef __LC3_ATTDET_H
20 #define __LC3_ATTDET_H
21 
22 #include "common.h"
23 
24 
25 /**
26  * Time domain attack detector
27  * dt, sr          Duration and samplerate of the frame
28  * nbytes          Size in bytes of the frame
29  * attdet          Context of the Attack Detector
30  * x               [-6..-1] Previous, [0..ns-1] Current samples
31  * return          1: Attack detected  0: Otherwise
32  */
33 bool lc3_attdet_run(enum lc3_dt dt, enum lc3_srate sr,
34     int nbytes, lc3_attdet_analysis_t *attdet, const int16_t *x);
35 
36 
37 #endif /* __LC3_ATTDET_H */
38