5f2568b2e1
Difficult to verify results, but at least exercises the APIs. Bug: 71614544 Test: adb push ...VtsHalAudioControlV1_0TargetTest /data/actst; adb shell /data/actst Merged-In: Ie900a4e47483ef881e00a4753097dbd09a0730a0 Change-Id: Ie900a4e47483ef881e00a4753097dbd09a0730a0
60 lines
2.1 KiB
Text
60 lines
2.1 KiB
Text
/*
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* Copyright (C) 2017 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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package android.hardware.automotive.audiocontrol@1.0;
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/**
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* Interacts with the car's audio subsystem to manage audio sources and volumes
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*/
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interface IAudioControl {
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/**
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* Called at startup once per context to get the mapping from ContextNumber to
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* busAddress. This lets the car tell the framework to which physical output stream
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* each context should be routed.
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*
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* For every context, a valid bus number (0 - num busses-1) must be returned. If an
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* unrecognized contextNumber is encountered, then -1 shall be returned.
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*/
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getBusForContext(ContextNumber contextNumber)
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generates (int32_t busNumber);
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/**
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* Control the right/left balance setting of the car speakers.
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*
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* This is intended to shift the speaker volume toward the right (+) or left (-) side of
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* the car. 0.0 means "centered". +1.0 means fully right. -1.0 means fully left.
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*
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* A value outside the range -1 to 1 must be clamped by the implementation to the -1 to 1
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* range.
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*/
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oneway setBalanceTowardRight(float value);
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/**
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* Control the fore/aft fade setting of the car speakers.
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*
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* This is intended to shift the speaker volume toward the front (+) or back (-) of the car.
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* 0.0 means "centered". +1.0 means fully forward. -1.0 means fully rearward.
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*
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* A value outside the range -1 to 1 must be clamped by the implementation to the -1 to 1
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* range.
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*/
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oneway setFadeTowardFront(float value);
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};
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