1 /*
2 * Copyright (c) 2024-2025 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 #include "multimedia_audio_volume_manager_impl.h"
17
18 #include "audio_policy_log.h"
19 #include "cj_lambda.h"
20 #include "multimedia_audio_error.h"
21 #include "multimedia_audio_volume_group_manager_impl.h"
22
23 namespace OHOS {
24 namespace AudioStandard {
25 extern "C" {
MMAAudioVolumeManagerImpl()26 MMAAudioVolumeManagerImpl::MMAAudioVolumeManagerImpl()
27 {
28 audioMngr_ = AudioSystemManager::GetInstance();
29 volumeChangeCallback_ = std::make_shared<CjVolumeKeyEventCallback>();
30 cachedClientId_ = getpid();
31 }
32
GetVolumeGroupManager(int32_t groupId,int32_t * errorCode)33 int64_t MMAAudioVolumeManagerImpl::GetVolumeGroupManager(int32_t groupId, int32_t* errorCode)
34 {
35 auto mgr = FFIData::Create<MMAAudioVolumeGroupManagerImpl>(groupId);
36 if (mgr == nullptr) {
37 *errorCode = CJ_ERR_SYSTEM;
38 AUDIO_ERR_LOG("GetVolumeGroupManager failed.");
39 return CJ_ERR_INVALID_RETURN_VALUE;
40 }
41 *errorCode = SUCCESS_CODE;
42 return mgr->GetID();
43 }
44
RegisterCallback(int32_t callbackType,void (* callback)(),int32_t * errorCode)45 void MMAAudioVolumeManagerImpl::RegisterCallback(int32_t callbackType, void (*callback)(), int32_t* errorCode)
46 {
47 if (callbackType != AudioVolumeManagerCallbackType::VOLUME_CHANGE) {
48 return;
49 }
50 auto func = CJLambda::Create(reinterpret_cast<void (*)(CVolumeEvent)>(callback));
51 if (func == nullptr) {
52 AUDIO_ERR_LOG("Register CVolumeEvent event failure!");
53 *errorCode = CJ_ERR_SYSTEM;
54 return;
55 }
56 volumeChangeCallback_->RegisterFunc(func);
57 audioMngr_->RegisterVolumeKeyEventCallback(cachedClientId_, volumeChangeCallback_);
58 }
59 }
60 } // namespace AudioStandard
61 } // namespace OHOS
62