AIDL effect: Initial IEffect interface definition am: 84efa03de3 (722b7ced) · Commits · e / os / android_hardware_interfaces

audio/aidl/Android.bp

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		@@ -148,6 +148,7 @@ aidl_interface {
		vendor_available: true,
		srcs: [
		"android/hardware/audio/effect/Descriptor.aidl",
		"android/hardware/audio/effect/IEffect.aidl",
		"android/hardware/audio/effect/IFactory.aidl",
		],
		imports: [

audio/aidl/aidl_api/android.hardware.audio.effect/current/android/hardware/audio/effect/IEffect.aidl

0 → 100644

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		/*
		* Copyright (C) 2022 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/
		///////////////////////////////////////////////////////////////////////////////
		// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE. //
		///////////////////////////////////////////////////////////////////////////////

		// This file is a snapshot of an AIDL file. Do not edit it manually. There are
		// two cases:
		// 1). this is a frozen version file - do not edit this in any case.
		// 2). this is a 'current' file. If you make a backwards compatible change to
		// the interface (from the latest frozen version), the build system will
		// prompt you to update this file with `m <name>-update-api`.
		//
		// You must not make a backward incompatible change to any AIDL file built
		// with the aidl_interface module type with versions property set. The module
		// type is used to build AIDL files in a way that they can be used across
		// independently updatable components of the system. If a device is shipped
		// with such a backward incompatible change, it has a high risk of breaking
		// later when a module using the interface is updated, e.g., Mainline modules.

		package android.hardware.audio.effect;
		@VintfStability
		interface IEffect {
		void open();
		void close();
		android.hardware.audio.effect.Descriptor getDescriptor();
		}

audio/aidl/aidl_api/android.hardware.audio.effect/current/android/hardware/audio/effect/IFactory.aidl

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		@@ -35,4 +35,6 @@ package android.hardware.audio.effect;
		@VintfStability
		interface IFactory {
		android.hardware.audio.effect.Descriptor.Identity[] queryEffects(in @nullable android.media.audio.common.AudioUuid type, in @nullable android.media.audio.common.AudioUuid implementation);
		android.hardware.audio.effect.IEffect createEffect(in android.media.audio.common.AudioUuid implUuid);
		void destroyEffect(in android.hardware.audio.effect.IEffect handle);
		}

audio/aidl/android/hardware/audio/effect/IEffect.aidl

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		/*
		* Copyright (C) 2022 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package android.hardware.audio.effect;

		import android.hardware.audio.effect.Descriptor;

		/**
		* Effect interfaces definitions to configure and control the effect instance.
		*/
		@VintfStability
		interface IEffect {
		/**
		* Open an effect instance, effect should not start processing data before receive START
		* command. All necessary information should be allocated and instance should transfer to IDLE
		* state after open() call has been handled successfully.
		* After open, the effect instance should be able to handle all IEffect interface calls.
		*
		* @throws a EX_UNSUPPORTED_OPERATION if device capability/resource is not enough or system
		* failure happens.
		* @note Open an already-opened effect instance should do nothing and not result in throw error.
		*/
		void open();

		/**
		* Called by the client to close the effect instance, instance context will be kept after
		* close, but processing thread should be destroyed and consume no CPU. It is recommended to
		* close the effect on the client side as soon as it becomes unused, it's client responsibility
		* to make sure all parameter/buffer is correct if client wants to reopen a closed instance.
		*
		* Effect instance close interface should always success unless:
		* 1. The effect instance is not in a proper state to be closed, for example it's still in
		* processing state.
		* 2. There is system/hardware related failure when close.
		*
		* @throws EX_ILLEGAL_STATE if the effect instance is not in a proper state to be closed.
		* @throws EX_UNSUPPORTED_OPERATION if the effect instance failed to close for any other reason.
		* @note Close an already-closed effect should do nothing and not result in throw error.
		*/
		void close();

		/**
		* Return the @c Descriptor of this effect instance.
		*
		* Must be available for the effect instance at anytime and should always succeed.
		*
		* @return Descriptor The @c Descriptor of this effect instance.
		*/
		Descriptor getDescriptor();
		}

audio/aidl/android/hardware/audio/effect/IFactory.aidl

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		@@ -17,6 +17,7 @@
		package android.hardware.audio.effect;

		import android.hardware.audio.effect.Descriptor;
		import android.hardware.audio.effect.IEffect;
		import android.media.audio.common.AudioUuid;

		/**
		@@ -42,4 +43,30 @@ interface IFactory {
		*/
		Descriptor.Identity[] queryEffects(
		in @nullable AudioUuid type, in @nullable AudioUuid implementation);

		/**
		* Called by the audio framework to create the effect (identified by the implementation UUID
		* parameter).
		*
		* The effect instance should be able to maintain its own context and parameters after creation.
		*
		* @param implUuid UUID for the effect implementation which instance will be created based on.
		* @return The effect instance handle created.
		* @throws EX_ILLEGAL_ARGUMENT if the implUuid is not valid.
		* @throws EX_TRANSACTION_FAILED if device capability/resource is not enough to create the
		* effect instance.
		*/
		IEffect createEffect(in AudioUuid implUuid);

		/**
		* Called by the framework to destroy the effect and free up all currently allocated resources.
		* It is recommended to destroy the effect from the client side as soon as it is becomes unused.
		*
		* The client must ensure effect instance is closed before destroy.
		*
		* @param handle The handle of effect instance to be destroyed.
		* @throws EX_ILLEGAL_ARGUMENT if the effect handle is not valid.
		* @throws EX_ILLEGAL_STATE if the effect instance is not in a proper state to be destroyed.
		*/
		void destroyEffect(in IEffect handle);
		}