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