1 /*
2  * Copyright (c) 2024 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 #ifndef AUDIO_DOWN_MIX_STEREO_H
16 #define AUDIO_DOWN_MIX_STEREO_H
17 #include "i_audio_mcr_mixer.h"
18 namespace OHOS {
19 namespace AudioStandard {
20 class AudioDownMixStereo {
21 public:
22     AudioDownMixStereo();
23     ~AudioDownMixStereo();
24     int32_t InitMixer(AudioChannelLayout mode, int32_t channels);
25     int32_t Apply(const int32_t &frameLength, float *input, float *output);
26 
27 private:
28     void *handle_;
29     IntegrationMCR::IAudioMcrMixer *mixer_;
30 };
31 } // namespace AudioStandard
32 } // namespace OHOS
33 #endif