| /* |
| * 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. |
| */ |
| |
| #ifndef ANDROID_VEHICLE_NETWORK_AUDIO_HELPER_H |
| #define ANDROID_VEHICLE_NETWORK_AUDIO_HELPER_H |
| |
| #include <stdint.h> |
| #include <sys/types.h> |
| |
| #include <utils/threads.h> |
| #include <utils/RefBase.h> |
| |
| // for enums |
| #include "vehicle-network-audio-helper-for-c.h" |
| |
| namespace android { |
| |
| class VehicleNetworkAudioFocusListener : public virtual RefBase { |
| public: |
| virtual void onFocusChange(int32_t activeStreams) = 0; |
| }; |
| |
| // ---------------------------------------------------------------------------- |
| |
| class VehicleNetwork; |
| class VehicleNetworkListener; |
| class LocalListener; |
| |
| class VehicleNetworkAudioHelper : public VehicleNetworkListener { |
| public: |
| |
| VehicleNetworkAudioHelper(int64_t timeoutNs = FOCUS_WAIT_DEFAULT_TIMEOUT_NS); |
| VehicleNetworkAudioHelper(int64_t timeoutNs, sp<VehicleNetworkAudioFocusListener> listener); |
| virtual ~VehicleNetworkAudioHelper(); |
| |
| status_t init(); |
| |
| void release(); |
| |
| void notifyStreamStarted(int32_t stream); |
| void notifyStreamStopped(int32_t stream); |
| |
| vehicle_network_audio_helper_focus_state getStreamFocusState(int32_t stream); |
| |
| bool waitForStreamFocus(int32_t stream, nsecs_t waitTimeNs); |
| |
| // from VehicleNetworkListener |
| void onEvents(sp<VehiclePropValueListHolder>& events) override; |
| void onHalError(int32_t errorCode, int32_t property, int32_t operation) override; |
| void onHalRestart(bool inMocking) override; |
| void onPropertySet(const vehicle_prop_value_t& value) override; |
| private: |
| void updatePropertiesLocked(); |
| |
| class StreamState { |
| public: |
| int64_t timeoutStartNs; |
| bool started; |
| StreamState() |
| : timeoutStartNs(0), |
| started(false) { }; |
| }; |
| |
| StreamState& getStreamStateLocked(int32_t streamNumber); |
| |
| private: |
| const int64_t mTimeoutNs; |
| sp<VehicleNetworkAudioFocusListener> mListener; |
| Mutex mLock; |
| Condition mFocusWait; |
| sp<VehicleNetwork> mService; |
| bool mHasFocusProperty; |
| int32_t mAllowedStreams; |
| vehicle_prop_value_t mScratchValueFocus; |
| vehicle_prop_value_t mScratchValueStreamState; |
| Vector<StreamState> mStreamStates; |
| }; |
| |
| }; // namespace android |
| #endif /*ANDROID_VEHICLE_NETWORK_AUDIO_HELPER_H*/ |