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 std::vector<std::unique_ptr<AudioStandard::AudioRendererChangeInfo>> audioRendererChangeInfo;
70 auto ret = AudioStandard::AudioStreamManager::GetInstance()->GetCurrentRendererChangeInfos(audioRendererChangeInfo);
71 if (ret != 0) {
72 SLOGE("get renderer state failed");
73 return AVSESSION_ERROR;
74 }
75 for (const auto& info : audioRendererChangeInfo) {
76 if (info->clientUID == uid and info->rendererState == AudioStandard::RENDERER_RUNNING) {
77 SLOGI("find uid=%{public}d stream usage %{public}d renderer state is %{public}d",
78 uid, info->rendererInfo.streamUsage, info->rendererState);
79 auto ret = AudioStandard::AudioSystemManager::GetInstance()->UpdateStreamState(
80 uid, AudioStandard::StreamSetState::STREAM_PAUSE, info->rendererInfo.streamUsage);
81 if (ret != 0) {
82 SLOGE("pause uid=%{public}d failed", uid);
83 return AVSESSION_ERROR;
84 }
85 }
86 }
87 return AVSESSION_SUCCESS;
88 }
89
PauseAudioStream(int32_t uid,AudioStandard::StreamUsage usage)90 int32_t AudioAdapter::PauseAudioStream(int32_t uid, AudioStandard::StreamUsage usage)
91 {
92 auto ret = AudioStandard::AudioSystemManager::GetInstance()->UpdateStreamState(
93 uid, AudioStandard::StreamSetState::STREAM_PAUSE, usage);
94 if (ret != 0) {
95 SLOGE("pause uid=%{public}d failed", uid);
96 return AVSESSION_ERROR;
97 }
98 return AVSESSION_SUCCESS;
99 }
100
OnRendererStateChange(const AudioRendererChangeInfos & infos)101 void AudioAdapter::OnRendererStateChange(const AudioRendererChangeInfos& infos)
102 {
103 for (const auto& listener : listeners_) {
104 if (listener) {
105 listener(infos);
106 }
107 }
108 }
109
OnDeviceChange(const DeviceChangeAction & deviceChangeAction)110 void AudioAdapter::OnDeviceChange(const DeviceChangeAction& deviceChangeAction)
111 {
112 for (const auto& listener : deviceChangeListeners_) {
113 if (listener) {
114 listener(deviceChangeAction);
115 }
116 }
117 }
118
GetRendererRunning(int32_t uid)119 bool AudioAdapter::GetRendererRunning(int32_t uid)
120 {
121 std::vector<std::unique_ptr<AudioStandard::AudioRendererChangeInfo>> audioRendererChangeInfo;
122 auto ret = AudioStandard::AudioStreamManager::GetInstance()->GetCurrentRendererChangeInfos(audioRendererChangeInfo);
123 if (ret != 0) {
124 SLOGE("get renderer state failed");
125 return false;
126 }
127 for (const auto& info : audioRendererChangeInfo) {
128 if (info->clientUID == uid && info->rendererState == AudioStandard::RENDERER_RUNNING) {
129 SLOGI("find uid=%{public}d renderer state is %{public}d", uid, info->rendererState);
130 return true;
131 }
132 }
133 return false;
134 }
135 }
136