1 /*
2  * Copyright (c) 2024-2024 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 AUDIO_CAPTURER_SESSION_H
17 #define AUDIO_CAPTURER_SESSION_H
18 
19 #include "audio_capturer.h"
20 #include "blocking_queue.h"
21 #include "refbase.h"
22 #include "audio_record.h"
23 #include "audio_deferred_process.h"
24 #include <atomic>
25 #include <cstdint>
26 
27 namespace OHOS {
28 namespace CameraStandard {
29 using namespace AudioStandard;
30 using namespace std::chrono;
31 using namespace DeferredProcessing;
32 constexpr uint32_t DEFAULT_AUDIO_CACHE_NUMBER = 400;
33 class AudioCapturerSession : public RefBase, public std::enable_shared_from_this<AudioCapturerSession> {
34 public:
35     explicit AudioCapturerSession();
36     ~AudioCapturerSession();
37     bool StartAudioCapture();
38     void ProcessAudioBuffer();
39     void Stop();
40     void Release();
41     void GetAudioRecords(int64_t startTime, int64_t endTime, vector<sptr<AudioRecord>> &audioRecords);
42     sptr<AudioDeferredProcess> GetAudioDeferredProcess();
43     AudioChannel getMicNum();
44 
45 private:
46     bool CreateAudioCapturer();
47     // Already guard by hcapture_session
48     std::unique_ptr<AudioCapturer> audioCapturer_ = nullptr;
49     BlockingQueue<sptr<AudioRecord>> audioBufferQueue_;
50     std::atomic<bool> startAudioCapture_ { false };
51     std::unique_ptr<std::thread> audioThread_ = nullptr;
52     sptr<AudioDeferredProcess> audioDeferredProcess_ = nullptr;
53 };
54 } // CameraStandard
55 } // OHOS
56 #endif // AUDIO_CAPTURER_SESSION_H