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 <android/hardware/audio/effect/2.0/IEffectsFactory.h> 21 #include <android/hardware/audio/effect/2.0/types.h> 22 #include <media/audiohal/EffectsFactoryHalInterface.h> 23 24 #include "ConversionHelperHidl.h" 25 26 namespace android { 27 28 using ::android::hardware::audio::effect::V2_0::EffectDescriptor; 29 using ::android::hardware::audio::effect::V2_0::IEffectsFactory; 30 using ::android::hardware::hidl_vec; 31 32 class EffectsFactoryHalHidl : public EffectsFactoryHalInterface, public ConversionHelperHidl 33 { 34 public: 35 // Returns the number of different effects in all loaded libraries. 36 virtual status_t queryNumberEffects(uint32_t *pNumEffects); 37 38 // Returns a descriptor of the next available effect. 39 virtual status_t getDescriptor(uint32_t index, 40 effect_descriptor_t *pDescriptor); 41 42 virtual status_t getDescriptor(const effect_uuid_t *pEffectUuid, 43 effect_descriptor_t *pDescriptor); 44 45 // Creates an effect engine of the specified type. 46 // To release the effect engine, it is necessary to release references 47 // to the returned effect object. 48 virtual status_t createEffect(const effect_uuid_t *pEffectUuid, 49 int32_t sessionId, int32_t ioId, 50 sp<EffectHalInterface> *effect); 51 52 virtual status_t dumpEffects(int fd); 53 54 status_t allocateBuffer(size_t size, sp<EffectBufferHalInterface>* buffer) override; 55 status_t mirrorBuffer(void* external, size_t size, 56 sp<EffectBufferHalInterface>* buffer) override; 57 58 private: 59 friend class EffectsFactoryHalInterface; 60 61 sp<IEffectsFactory> mEffectsFactory; 62 hidl_vec<EffectDescriptor> mLastDescriptors; 63 64 // Can not be constructed directly by clients. 65 EffectsFactoryHalHidl(); 66 virtual ~EffectsFactoryHalHidl(); 67 68 status_t queryAllDescriptors(); 69 }; 70 71 } // namespace android 72 73 #endif // ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_HIDL_H 74