You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

64 lines
1.9 KiB

/*
* Copyright (C) 2020 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.
*/
#ifndef ANDROID_SERVERS_CAMERA_FRAMEPRODUCER_H
#define ANDROID_SERVERS_CAMERA_FRAMEPRODUCER_H
#include <utils/RefBase.h>
#include <utils/String8.h>
#include <utils/Timers.h>
#include "camera/CameraMetadata.h"
#include "camera/CaptureResult.h"
namespace android {
/**
* Abstract class for HAL frame producers
*/
class FrameProducer : public virtual RefBase {
public:
/**
* Retrieve the static characteristics metadata buffer
*/
virtual const CameraMetadata& info() const = 0;
/**
* Retrieve the device camera ID
*/
virtual const String8& getId() const = 0;
/**
* Wait for a new frame to be produced, with timeout in nanoseconds.
* Returns TIMED_OUT when no frame produced within the specified duration
* May be called concurrently to most methods, except for getNextFrame
*/
virtual status_t waitForNextFrame(nsecs_t timeout) = 0;
/**
* Get next capture result frame from the result queue. Returns NOT_ENOUGH_DATA
* if the queue is empty; caller takes ownership of the metadata buffer inside
* the capture result object's metadata field.
* May be called concurrently to most methods, except for waitForNextFrame.
*/
virtual status_t getNextResult(CaptureResult *frame) = 0;
}; // class FrameProducer
} // namespace android
#endif