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54 lines
2.1 KiB
54 lines
2.1 KiB
4 months ago
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/*
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* Copyright (C) 2019 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.evs@1.1;
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import @1.0::IEvsCameraStream;
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import @1.1::BufferDesc;
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import @1.1::EvsEventDesc;
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/**
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* Implemented on client side to receive asynchronous streaming event deliveries.
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*/
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interface IEvsCameraStream extends @1.0::IEvsCameraStream {
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/**
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* Receives calls from the HAL each time video frames is ready for inspection.
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* Buffer handles received by this method must be returned via calls to
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* IEvsCamera::doneWithFrame_1_1(). When the video stream is stopped via a call
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* to IEvsCamera::stopVideoStream(), this callback may continue to happen for
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* some time as the pipeline drains. Each frame must still be returned.
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* When the last frame in the stream has been delivered, STREAM_STOPPED
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* event must be delivered. No further frame deliveries may happen
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* thereafter.
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*
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* A camera device will deliver the same number of frames as number of
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* backing physical camera devices; it means, a physical camera device
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* sends always a single frame and a logical camera device sends multiple
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* frames as many as number of backing physical camera devices.
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*
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* @param buffer Buffer descriptors of delivered image frames.
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*/
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oneway deliverFrame_1_1(vec<BufferDesc> buffer);
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/**
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* Receives calls from the HAL each time an event happens.
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*
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* @param event EVS event with possible event information.
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*/
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oneway notify(EvsEventDesc event);
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};
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