1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
/**
* Copyright (C) 2022 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*------------------------------------------------------------------------------
*
* Function to calculate a quantised representation of an input
* difference signal, based on additional dither values and step-size inputs.
*
*-----------------------------------------------------------------------------*/
#ifndef QUANTISER_H
#define QUANTISER_H
#ifdef _GCC
#pragma GCC visibility push(hidden)
#endif
#include "AptxParameters.h"
void quantiseDifferenceLL(const int32_t diffSignal, const int32_t ditherVal,
const int32_t delta, Quantiser_data* qdata_pt);
void quantiseDifferenceHL(const int32_t diffSignal, const int32_t ditherVal,
const int32_t delta, Quantiser_data* qdata_pt);
void quantiseDifferenceLH(const int32_t diffSignal, const int32_t ditherVal,
const int32_t delta, Quantiser_data* qdata_pt);
void quantiseDifferenceHH(const int32_t diffSignal, const int32_t ditherVal,
const int32_t delta, Quantiser_data* qdata_pt);
#ifdef _GCC
#pragma GCC visibility pop
#endif
#endif // QUANTISER_H
|
