1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #pragma once 18 19 #include "FormattedSubsystemObject.h" 20 #include "InstanceConfigurableElement.h" 21 #include "MappingContext.h" 22 #include <AudioPolicyPluginInterface.h> 23 #include <string> 24 25 class PolicySubsystem; 26 27 class Stream : public CFormattedSubsystemObject 28 { 29 public: 30 Stream(const std::string &mappingValue, 31 CInstanceConfigurableElement *instanceConfigurableElement, 32 const CMappingContext &context); 33 34 protected: 35 virtual bool receiveFromHW(std::string &error); 36 virtual bool sendToHW(std::string &error); 37 38 private: 39 const PolicySubsystem *mPolicySubsystem; /**< Route subsytem plugin. */ 40 41 /** 42 * Interface to communicate with Audio Policy Engine. 43 */ 44 android::AudioPolicyPluginInterface *mPolicyPluginInterface; 45 46 audio_stream_type_t mId; /**< stream type identifier to link with audio.h. */ 47 uint32_t mApplicableStrategy; /**< applicable strategy for this stream. */ 48 static const uint32_t mDefaultApplicableStrategy = 0; /**< default strategy. */ 49 }; 50
