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 POLICY_HANDLER_H
17 #define POLICY_HANDLER_H
18 
19 #include <sstream>
20 #include <map>
21 #include <mutex>
22 #include <vector>
23 
24 #include "audio_info.h"
25 #include "i_policy_provider_ipc.h"
26 
27 namespace OHOS {
28 namespace AudioStandard {
29 class PolicyHandler {
30 public:
31     static PolicyHandler& GetInstance();
32 
33     ~PolicyHandler();
34 
35     void Dump(std::string &dumpString);
36 
37     // would be called only once
38     bool ConfigPolicyProvider(const sptr<IPolicyProviderIpc> policyProvider);
39 
40     bool GetProcessDeviceInfo(const AudioProcessConfig &config, bool lockFlag, DeviceInfo &deviceInfo);
41 
42     bool InitVolumeMap();
43 
44     bool GetSharedVolume(AudioVolumeType streamType, DeviceType deviceType, Volume &vol);
45 
46     void SetActiveOutputDevice(DeviceType deviceType);
47 
48     uint32_t GenerateSessionId(int32_t uid);
49 
50     DeviceType GetActiveOutPutDevice();
51 
52     int32_t SetWakeUpAudioCapturerFromAudioServer(const AudioProcessConfig &config);
53 
54     int32_t NotifyCapturerAdded(AudioCapturerInfo capturerInfo, AudioStreamInfo streamInfo, uint32_t sessionId);
55 
56     int32_t NotifyWakeUpCapturerRemoved();
57 
58     bool IsAbsVolumeSupported();
59 
60     int32_t OffloadGetRenderPosition(uint32_t &delayValue, uint64_t &sendDataSize, uint32_t &timeStamp);
61 
62     bool GetHighResolutionExist();
63 
64     void SetHighResolutionExist(bool isHighResExist);
65 
66     int32_t GetAndSaveClientType(uint32_t uid, const std::string &bundleName);
67 
68     int32_t GetMaxRendererInstances();
69 
70     int32_t ActivateConcurrencyFromServer(AudioPipeType incomingPipe);
71 private:
72     PolicyHandler();
73     sptr<IPolicyProviderIpc> iPolicyProvider_ = nullptr;
74 
75 private:
76     std::shared_ptr<AudioSharedMemory> policyVolumeMap_ = nullptr;
77     volatile Volume *volumeVector_ = nullptr;
78     volatile bool *sharedAbsVolumeScene_ = nullptr;
79     DeviceType deviceType_ = DEVICE_TYPE_SPEAKER;
80     bool isHighResolutionExist_ = false;
81 };
82 } // namespace AudioStandard
83 } // namespace OHOS
84 #endif // POLICY_HANDLER_H
85