1 /*
2 * Copyright (c) 2022 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 #include "audio_adapter.h"
16 #include "audio_system_manager.h"
17 #include "avsession_log.h"
18 #include "avsession_errors.h"
19
20 namespace OHOS::AVSession {
21 std::shared_ptr<AudioAdapter> AudioAdapter::instance_;
22 std::once_flag AudioAdapter::onceFlag_;
23
GetInstance()24 AudioAdapter& AudioAdapter::GetInstance()
25 {
26 std::call_once(onceFlag_, [] {
27 instance_ = std::make_shared<AudioAdapter>();
28 });
29 return *instance_;
30 }
31
AudioAdapter()32 AudioAdapter::AudioAdapter()
33 {
34 SLOGD("construct");
35 }
36
~AudioAdapter()37 AudioAdapter::~AudioAdapter()
38 {
39 SLOGD("destroy");
40 }
41
Init()42 void AudioAdapter::Init()
43 {
44 SLOGI("register audio renderer event listener");
45 auto ret = AudioStandard::AudioStreamManager::GetInstance()->RegisterAudioRendererEventListener(getpid(),
46 shared_from_this());
47 if (ret != 0) {
48 SLOGE("register audio renderer event listener failed");
49 }
50 ret = AudioStandard::AudioSystemManager::GetInstance()->SetDeviceChangeCallback(
51 AudioStandard::DeviceFlag::ALL_DEVICES_FLAG, shared_from_this());
52 if (ret != 0) {
53 SLOGE("register audio device changed event listener failed");
54 }
55 }
56
AddStreamRendererStateListener(const StateListener & listener)57 void AudioAdapter::AddStreamRendererStateListener(const StateListener& listener)
58 {
59 listeners_.push_back(listener);
60 }
61
AddDeviceChangeListener(const DeviceChangeListener & listener)62 void AudioAdapter::AddDeviceChangeListener(const DeviceChangeListener& listener)
63 {
64 deviceChangeListeners_.push_back(listener);
65 }
66
PauseAudioStream(int32_t uid)67 int32_t AudioAdapter::PauseAudioStream(int32_t uid)
68 {
69 auto ret = AudioStandard::AudioSystemManager::GetInstance()->UpdateStreamState(
70 uid, AudioStandard::StreamSetState::STREAM_PAUSE, AudioStandard::AudioStreamType::STREAM_MUSIC);
71 if (ret != 0) {
72 SLOGE("pause uid=%{public}d failed", uid);
73 return AVSESSION_ERROR;
74 }
75 return AVSESSION_SUCCESS;
76 }
77
OnRendererStateChange(const AudioRendererChangeInfos & infos)78 void AudioAdapter::OnRendererStateChange(const AudioRendererChangeInfos& infos)
79 {
80 for (const auto& listener : listeners_) {
81 if (listener) {
82 listener(infos);
83 }
84 }
85 }
86
OnDeviceChange(const DeviceChangeAction & deviceChangeAction)87 void AudioAdapter::OnDeviceChange(const DeviceChangeAction& deviceChangeAction)
88 {
89 for (const auto& listener : deviceChangeListeners_) {
90 if (listener) {
91 listener(deviceChangeAction);
92 }
93 }
94 }
95
GetRendererState(int32_t uid,AudioStandard::RendererState & rendererState)96 bool AudioAdapter::GetRendererState(int32_t uid, AudioStandard::RendererState& rendererState)
97 {
98 std::vector<std::unique_ptr<AudioStandard::AudioRendererChangeInfo>> audioRendererChangeInfo;
99 auto ret = AudioStandard::AudioStreamManager::GetInstance()->GetCurrentRendererChangeInfos(audioRendererChangeInfo);
100 if (ret != 0) {
101 SLOGE("get renderer state failed");
102 return false;
103 }
104 for (const auto& info : audioRendererChangeInfo) {
105 if (info->clientUID == uid and info->rendererState == AudioStandard::RENDERER_RUNNING) {
106 SLOGI("find uid=%{public}d renderer state is %{public}d", uid, rendererState);
107 return true;
108 }
109 }
110 SLOGE("find uid=%{public}d renderer state fail", uid);
111 return false;
112 }
113 }