1 /*
2  * Copyright (c) 2023 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_DEVICE_MANAGER_IMPL_H
17 #define AUDIO_DEVICE_MANAGER_IMPL_H
18 
19 #include <map>
20 #include <mutex>
21 
22 #include "audio_info.h"
23 #include "i_audio_device_manager.h"
24 #include "i_audio_device_adapter.h"
25 
26 namespace OHOS {
27 namespace AudioStandard {
28 struct DeviceAdapterInfo {
29     std::shared_ptr<IAudioDeviceAdapter> devAdp = nullptr;
30     sptr<IAudioAdapter> audioAdapter = nullptr;
31 };
32 
33 class AudioDeviceManagerImpl : public IAudioDeviceManager {
34 public:
AudioDeviceManagerImpl(const AudioDeviceManagerType devMgrType,sptr<IAudioManager> audioMgr)35     AudioDeviceManagerImpl(const AudioDeviceManagerType devMgrType, sptr<IAudioManager> audioMgr)
36         : audioMgrType_(devMgrType), audioMgr_(audioMgr) {};
37     ~AudioDeviceManagerImpl() = default;
38 
39     int32_t GetAllAdapters() override;
40     struct AudioAdapterDescriptor *GetTargetAdapterDesc(const std::string &adapterName, bool isMmap) override;
41     std::shared_ptr<IAudioDeviceAdapter> LoadAdapters(const std::string &adapterName, bool isMmap) override;
42     int32_t UnloadAdapter(const std::string &adapterName) override;
43     int32_t Release() override;
44 
45 private:
46     static constexpr int32_t INVALID_INDEX = -1;
47 
48     AudioDeviceManagerType audioMgrType_;
49     sptr<IAudioManager> audioMgr_;
50     std::mutex mtx_;
51     std::map<std::string, DeviceAdapterInfo> enableAdapters_;
52     std::vector<AudioAdapterDescriptor> descriptors_;
53 };
54 }  // namespace AudioStandard
55 }  // namespace OHOS
56 #endif // AUDIO_DEVICE_MANAGER_IMPL_H
57