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68 lines
2.4 KiB
68 lines
2.4 KiB
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_INTERFACE_H
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#define ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_INTERFACE_H
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#include <media/audiohal/EffectHalInterface.h>
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#include <system/audio_effect.h>
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#include <utils/Errors.h>
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#include <utils/RefBase.h>
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namespace android {
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class EffectsFactoryHalInterface : public RefBase
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{
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public:
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// Returns the number of different effects in all loaded libraries.
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virtual status_t queryNumberEffects(uint32_t *pNumEffects) = 0;
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// Returns a descriptor of the next available effect.
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virtual status_t getDescriptor(uint32_t index,
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effect_descriptor_t *pDescriptor) = 0;
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virtual status_t getDescriptor(const effect_uuid_t *pEffectUuid,
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effect_descriptor_t *pDescriptor) = 0;
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// Creates an effect engine of the specified type.
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// To release the effect engine, it is necessary to release references
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// to the returned effect object.
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virtual status_t createEffect(const effect_uuid_t *pEffectUuid,
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int32_t sessionId, int32_t ioId, int32_t deviceId,
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sp<EffectHalInterface> *effect) = 0;
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virtual status_t dumpEffects(int fd) = 0;
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static sp<EffectsFactoryHalInterface> create();
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virtual status_t allocateBuffer(size_t size, sp<EffectBufferHalInterface>* buffer) = 0;
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virtual status_t mirrorBuffer(void* external, size_t size,
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sp<EffectBufferHalInterface>* buffer) = 0;
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// Helper function to compare effect uuid to EFFECT_UUID_NULL.
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static bool isNullUuid(const effect_uuid_t *pEffectUuid);
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protected:
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// Subclasses can not be constructed directly by clients.
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EffectsFactoryHalInterface() {}
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virtual ~EffectsFactoryHalInterface() {}
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};
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} // namespace android
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#endif // ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_INTERFACE_H
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