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 
16 #ifndef AVCODEC_AUDIO_DEFERRED_PROCESS_H
17 #define AVCODEC_AUDIO_DEFERRED_PROCESS_H
18 
19 #include "refbase.h"
20 #include "audio_capturer.h"
21 #include "audio_record.h"
22 #include "audio_session_manager.h"
23 #include "offline_audio_effect_manager.h"
24 #include <cstdint>
25 #include <mutex>
26 
27 namespace OHOS {
28 namespace CameraStandard {
29 using namespace AudioStandard;
30 class AudioDeferredProcess : public RefBase {
31 public:
32     explicit AudioDeferredProcess();
33     ~AudioDeferredProcess();
34 
35     int32_t ConfigOfflineAudioEffectChain(const AudioStreamInfo& inputOptions, const AudioStreamInfo& outputOptions);
36     int32_t PrepareOfflineAudioEffectChain();
37     int32_t GetMaxBufferSize(const AudioStreamInfo& inputOption, const AudioStreamInfo& outputOption);
38     int32_t GetOfflineEffectChain();
39     AudioSamplingRate GetOutputSampleRate();
40     AudioChannel GetOutputChannelCount();
41     uint32_t GetOneUnprocessedSize();
42     int32_t Process(vector<sptr<AudioRecord>>& audioRecords, vector<sptr<AudioRecord>>& processedRecords);
43     void Release();
44 
45     static constexpr int32_t ONE_THOUSAND = 1000;
46     static constexpr int32_t DURATION_EACH_AUDIO_FRAME = 32;
47     static constexpr int32_t PROCESS_BATCH_SIZE = 5;
48 
49 private:
50     std::string chainName_ = "offline_record_algo";
51     std::mutex mutex_;
52     std::unique_ptr<OfflineAudioEffectManager> offlineAudioEffectManager_ = nullptr;
53     std::unique_ptr<OfflineAudioEffectChain> offlineEffectChain_ = nullptr;
54     uint32_t maxUnprocessedBufferSize_ = 0;
55     uint32_t maxProcessedBufferSize_ = 0;
56     AudioStreamInfo inputOptions_;
57     AudioStreamInfo outputOptions_;
58     uint32_t oneUnprocessedSize_ = 0;
59     uint32_t oneProcessedSize_ = 0;
60 };
61 } // CameraStandard
62 } // OHOS
63 #endif // AVCODEC_AUDIO_PRE_PROCESS_H
64