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/*
* Copyright (C) 2019 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.
*/
package android.hardware.camera2.impl;
import android.hardware.camera2.CameraCaptureSession;
import android.hardware.camera2.CameraDevice;
import android.hardware.camera2.CaptureFailure;
import android.hardware.camera2.CaptureRequest;
import android.hardware.camera2.CaptureResult;
import android.hardware.camera2.TotalCaptureResult;
import android.view.Surface;
import java.util.concurrent.Executor;
/**
* <p>An internal callback for tracking the progress of a {@link CaptureRequest}
* submitted to the camera device.</p>
*/
public abstract class CaptureCallback {
private Executor mExecutor;
private CameraCaptureSession.CaptureCallback mCallback;
public CaptureCallback(Executor executor, CameraCaptureSession.CaptureCallback callback) {
mExecutor = executor;
mCallback = callback;
}
/**
* Retrieve callback executor
*
*/
public Executor getExecutor() {
return mExecutor;
}
/**
* Retrieve capture callback
*
*/
public CameraCaptureSession.CaptureCallback getSessionCallback() {
return mCallback;
}
/**
* This method is called when the camera device has started capturing
* the output image for the request, at the beginning of image exposure.
*
* @see android.media.MediaActionSound
*/
public abstract void onCaptureStarted(CameraDevice camera,
CaptureRequest request, long timestamp, long frameNumber);
/**
* This method is called when the camera device has started reading out the output
* image for the request, at the beginning of the sensor image readout.
*/
public abstract void onReadoutStarted(CameraDevice camera,
CaptureRequest request, long timestamp, long frameNumber);
/**
* This method is called when some results from an image capture are
* available.
*
* @hide
*/
public abstract void onCapturePartial(CameraDevice camera,
CaptureRequest request, CaptureResult result);
/**
* This method is called when an image capture makes partial forward progress; some
* (but not all) results from an image capture are available.
*
*/
public abstract void onCaptureProgressed(CameraDevice camera,
CaptureRequest request, CaptureResult partialResult);
/**
* This method is called when an image capture has fully completed and all the
* result metadata is available.
*/
public abstract void onCaptureCompleted(CameraDevice camera,
CaptureRequest request, TotalCaptureResult result);
/**
* This method is called instead of {@link #onCaptureCompleted} when the
* camera device failed to produce a {@link CaptureResult} for the
* request.
*/
public abstract void onCaptureFailed(CameraDevice camera,
CaptureRequest request, CaptureFailure failure);
/**
* This method is called independently of the others in CaptureCallback,
* when a capture sequence finishes and all {@link CaptureResult}
* or {@link CaptureFailure} for it have been returned via this callback.
*/
public abstract void onCaptureSequenceCompleted(CameraDevice camera,
int sequenceId, long frameNumber);
/**
* This method is called independently of the others in CaptureCallback,
* when a capture sequence aborts before any {@link CaptureResult}
* or {@link CaptureFailure} for it have been returned via this callback.
*/
public abstract void onCaptureSequenceAborted(CameraDevice camera,
int sequenceId);
/**
* This method is called independently of the others in CaptureCallback, if an output buffer
* is dropped for a particular capture request.
*
* Loss of metadata is communicated via onCaptureFailed, independently of any buffer loss.
*/
public abstract void onCaptureBufferLost(CameraDevice camera,
CaptureRequest request, Surface target, long frameNumber);
}
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