| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #pragma once |
| |
| #include <system/audio.h> |
| #include <utils/Errors.h> |
| #include <utils/RefBase.h> |
| #include <utils/Errors.h> |
| #include <utils/KeyedVector.h> |
| #include <media/AudioPolicy.h> |
| #include "AudioSessionInfoProvider.h" |
| |
| namespace android { |
| |
| class AudioPolicyClientInterface; |
| |
| class AudioSession : public RefBase, public AudioSessionInfoUpdateListener |
| { |
| public: |
| AudioSession(audio_session_t session, |
| audio_source_t inputSource, |
| audio_format_t format, |
| uint32_t sampleRate, |
| audio_channel_mask_t channelMask, |
| audio_input_flags_t flags, |
| uid_t uid, |
| bool isSoundTrigger, |
| AudioMix* policyMix, |
| AudioPolicyClientInterface *clientInterface); |
| |
| status_t dump(int fd, int spaces, int index) const; |
| |
| audio_session_t session() const { return mSession; } |
| audio_source_t inputSource()const { return mInputSource; } |
| audio_format_t format() const { return mConfig.format; } |
| uint32_t sampleRate() const { return mConfig.sample_rate; } |
| audio_channel_mask_t channelMask() const { return mConfig.channel_mask; } |
| audio_input_flags_t flags() const { return mFlags; } |
| uid_t uid() const { return mUid; } |
| bool matches(const sp<AudioSession> &other) const; |
| bool isSoundTrigger() const { return mIsSoundTrigger; } |
| uint32_t openCount() const { return mOpenCount; } ; |
| uint32_t activeCount() const { return mActiveCount; } ; |
| |
| uint32_t changeOpenCount(int delta); |
| uint32_t changeActiveCount(int delta); |
| |
| void setInfoProvider(AudioSessionInfoProvider *provider); |
| // implementation of AudioSessionInfoUpdateListener |
| virtual void onSessionInfoUpdate() const; |
| |
| private: |
| const audio_session_t mSession; |
| const audio_source_t mInputSource; |
| const struct audio_config_base mConfig; |
| const audio_input_flags_t mFlags; |
| const uid_t mUid; |
| bool mIsSoundTrigger; |
| uint32_t mOpenCount; |
| uint32_t mActiveCount; |
| AudioMix* mPolicyMix; // non NULL when used by a dynamic policy |
| AudioPolicyClientInterface* mClientInterface; |
| const AudioSessionInfoProvider* mInfoProvider; |
| }; |
| |
| class AudioSessionCollection : |
| public DefaultKeyedVector<audio_session_t, sp<AudioSession> >, |
| public AudioSessionInfoUpdateListener |
| { |
| public: |
| status_t addSession(audio_session_t session, |
| const sp<AudioSession>& audioSession, |
| AudioSessionInfoProvider *provider); |
| |
| status_t removeSession(audio_session_t session); |
| |
| uint32_t getOpenCount() const; |
| |
| AudioSessionCollection getActiveSessions() const; |
| size_t getActiveSessionCount() const; |
| bool hasActiveSession() const; |
| bool isSourceActive(audio_source_t source) const; |
| audio_source_t getHighestPrioritySource(bool activeOnly) const; |
| |
| // implementation of AudioSessionInfoUpdateListener |
| virtual void onSessionInfoUpdate() const; |
| |
| status_t dump(int fd, int spaces) const; |
| }; |
| |
| }; // namespace android |