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https://github.com/Evolution-X/hardware_interfaces
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5d11612694
The callback is targeted for events related to an output stream. Currently, there is one callback event defined, which is codec format changed event. Bug: 133526565 Test: manual Test: atest VtsHalAudioV6_0TargetTest Change-Id: I73a4914c1ffc30e1c88b8fedd61a031e24a069f6
36 lines
1.3 KiB
Plaintext
36 lines
1.3 KiB
Plaintext
/*
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* Copyright (C) 2020 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.audio@6.0;
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/**
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* Asynchronous stream out event callback interface. The interface provides
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* a way for the HAL to notify platform when there are changes, e.g. codec
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* format change, from the lower layer.
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*/
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interface IStreamOutEventCallback {
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/**
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* Codec format changed.
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*
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* @param audioMetadata is a buffer containing decoded format changes
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* reported by codec. The buffer contains data that can be transformed
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* to audio metadata, which is a C++ object based map. See
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* `system/media/audio_utils/include/audio_utils/Metadata.h` for
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* more details.
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*/
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oneway onCodecFormatChanged(vec<uint8_t> audioMetadata);
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};
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