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_EFFECTS_FACTORY_HAL_HIDL_H 18 #define ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_HIDL_H 19 20 #include PATH(android/hardware/audio/effect/FILE_VERSION/IEffectsFactory.h) 21 #include <media/audiohal/EffectsFactoryHalInterface.h> 22 23 #include "ConversionHelperHidl.h" 24 25 namespace android { 26 namespace effect { 27 namespace CPP_VERSION { 28 29 using ::android::hardware::hidl_vec; 30 using ::android::CPP_VERSION::ConversionHelperHidl; 31 using namespace ::android::hardware::audio::effect::CPP_VERSION; 32 33 class EffectsFactoryHalHidl : public EffectsFactoryHalInterface, public ConversionHelperHidl 34 { 35 public: 36 EffectsFactoryHalHidl(sp<IEffectsFactory> effectsFactory); 37 38 // Returns the number of different effects in all loaded libraries. 39 virtual status_t queryNumberEffects(uint32_t *pNumEffects); 40 41 // Returns a descriptor of the next available effect. 42 virtual status_t getDescriptor(uint32_t index, 43 effect_descriptor_t *pDescriptor); 44 45 virtual status_t getDescriptor(const effect_uuid_t *pEffectUuid, 46 effect_descriptor_t *pDescriptor); 47 48 // Creates an effect engine of the specified type. 49 // To release the effect engine, it is necessary to release references 50 // to the returned effect object. 51 virtual status_t createEffect(const effect_uuid_t *pEffectUuid, 52 int32_t sessionId, int32_t ioId, int32_t deviceId, 53 sp<EffectHalInterface> *effect); 54 55 virtual status_t dumpEffects(int fd); 56 getHalVersion()57 virtual float getHalVersion() { return MAJOR_VERSION + (float)MINOR_VERSION / 10; } 58 59 status_t allocateBuffer(size_t size, sp<EffectBufferHalInterface>* buffer) override; 60 status_t mirrorBuffer(void* external, size_t size, 61 sp<EffectBufferHalInterface>* buffer) override; 62 63 private: 64 sp<IEffectsFactory> mEffectsFactory; 65 hidl_vec<EffectDescriptor> mLastDescriptors; 66 67 status_t queryAllDescriptors(); 68 }; 69 70 } // namespace CPP_VERSION 71 } // namespace effect 72 } // namespace android 73 74 #endif // ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_HIDL_H 75