1 /* 2 * Copyright (C) 2016 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 #ifndef ANDROID_HARDWARE_EFFECT_HAL_LOCAL_H 18 #define ANDROID_HARDWARE_EFFECT_HAL_LOCAL_H 19 20 #include <hardware/audio_effect.h> 21 #include <media/audiohal/EffectHalInterface.h> 22 23 namespace android { 24 25 class EffectHalLocal : public EffectHalInterface 26 { 27 public: 28 // Set the input buffer. 29 virtual status_t setInBuffer(const sp<EffectBufferHalInterface>& buffer); 30 31 // Set the output buffer. 32 virtual status_t setOutBuffer(const sp<EffectBufferHalInterface>& buffer); 33 34 // Effect process function. 35 virtual status_t process(); 36 37 // Process reverse stream function. This function is used to pass 38 // a reference stream to the effect engine. 39 virtual status_t processReverse(); 40 41 // Send a command and receive a response to/from effect engine. 42 virtual status_t command(uint32_t cmdCode, uint32_t cmdSize, void *pCmdData, 43 uint32_t *replySize, void *pReplyData); 44 45 // Returns the effect descriptor. 46 virtual status_t getDescriptor(effect_descriptor_t *pDescriptor); 47 48 // Free resources on the remote side. 49 virtual status_t close(); 50 51 // Whether it's a local implementation. 52 virtual bool isLocal() const { return true; } 53 54 effect_handle_t handle() const { return mHandle; } 55 56 private: 57 effect_handle_t mHandle; 58 sp<EffectBufferHalInterface> mInBuffer; 59 sp<EffectBufferHalInterface> mOutBuffer; 60 61 friend class EffectsFactoryHalLocal; 62 63 // Can not be constructed directly by clients. 64 explicit EffectHalLocal(effect_handle_t handle); 65 66 // The destructor automatically releases the effect. 67 virtual ~EffectHalLocal(); 68 }; 69 70 } // namespace android 71 72 #endif // ANDROID_HARDWARE_EFFECT_HAL_LOCAL_H 73
