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96 lines
2.8 KiB
96 lines
2.8 KiB
4 months ago
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/*
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* Copyright (C) 2013-2018 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_SERVERS_CAMERA3_INPUT_STREAM_H
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#define ANDROID_SERVERS_CAMERA3_INPUT_STREAM_H
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#include <utils/RefBase.h>
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#include <gui/Surface.h>
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#include <gui/BufferItemConsumer.h>
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#include "Camera3IOStreamBase.h"
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namespace android {
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namespace camera3 {
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/**
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* A class for managing a single stream of input data to the camera device.
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*
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* This class serves as a consumer adapter for the HAL, and will consume the
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* buffers by feeding them into the HAL, as well as releasing the buffers back
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* the buffers once the HAL is done with them.
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*/
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class Camera3InputStream : public Camera3IOStreamBase,
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public BufferItemConsumer::BufferFreedListener {
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public:
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/**
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* Set up a stream for formats that have fixed size, such as RAW and YUV.
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*/
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Camera3InputStream(int id, uint32_t width, uint32_t height, int format);
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~Camera3InputStream();
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virtual void dump(int fd, const Vector<String16> &args) const;
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// TODO: expose an interface to get the IGraphicBufferProducer
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private:
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sp<BufferItemConsumer> mConsumer;
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sp<IGraphicBufferProducer> mProducer;
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Vector<BufferItem> mBuffersInFlight;
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static const String8 FAKE_ID;
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/**
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* Camera3IOStreamBase
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*/
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virtual status_t returnBufferCheckedLocked(
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const camera_stream_buffer &buffer,
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nsecs_t timestamp,
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bool output,
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const std::vector<size_t>& surface_ids,
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/*out*/
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sp<Fence> *releaseFenceOut);
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/**
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* Camera3Stream interface
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*/
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virtual status_t getInputBufferLocked(camera_stream_buffer *buffer, Size *size);
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virtual status_t returnInputBufferLocked(
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const camera_stream_buffer &buffer);
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virtual status_t getInputBufferProducerLocked(
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sp<IGraphicBufferProducer> *producer);
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virtual status_t disconnectLocked();
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virtual status_t configureQueueLocked();
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virtual status_t getEndpointUsage(uint64_t *usage) const;
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/**
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* BufferItemConsumer::BufferFreedListener interface
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*/
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virtual void onBufferFreed(const wp<GraphicBuffer>&) override;
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}; // class Camera3InputStream
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}; // namespace camera3
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}; // namespace android
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#endif
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