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/*
* Copyright 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 androidx.camera.extensions.impl;
import android.content.Context;
import android.hardware.camera2.CameraCharacteristics;
import android.hardware.camera2.CaptureRequest;
import android.hardware.camera2.CaptureResult;
import android.hardware.camera2.TotalCaptureResult;
import android.media.Image;
import android.media.ImageWriter;
import android.os.Build;
import android.util.Log;
import android.util.Pair;
import android.util.Size;
import android.view.Surface;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.concurrent.Executor;
import java.util.List;
import java.util.Map;
/**
* Implementation for night image capture use case.
*
* <p>This class should be implemented by OEM and deployed to the target devices. 3P developers
* don't need to implement this, unless this is used for related testing usage.
*
* @since 1.0
* @hide
*/
public final class NightImageCaptureExtenderImpl implements ImageCaptureExtenderImpl {
private static final String TAG = "NightICExtender";
private static final int DEFAULT_STAGE_ID = 0;
private static final int SESSION_STAGE_ID = 101;
private static final int MODE = CaptureRequest.CONTROL_AWB_MODE_INCANDESCENT;
/**
* @hide
*/
public NightImageCaptureExtenderImpl() {
}
/**
* @hide
*/
@Override
public void init(String cameraId, CameraCharacteristics cameraCharacteristics) {
}
/**
* @hide
*/
@Override
public boolean isExtensionAvailable(String cameraId,
CameraCharacteristics cameraCharacteristics) {
return false;
}
public boolean isExtensionAvailableOriginal(String cameraId,
CameraCharacteristics cameraCharacteristics) {
// Requires API 23 for ImageWriter
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
return false;
}
if (cameraCharacteristics == null) {
return false;
}
return CameraCharacteristicAvailability.isWBModeAvailable(cameraCharacteristics, MODE);
}
/**
* @hide
*/
@Override
public List<CaptureStageImpl> getCaptureStages() {
// Placeholder set of CaptureRequest.Key values
SettableCaptureStage captureStage = new SettableCaptureStage(DEFAULT_STAGE_ID);
captureStage.addCaptureRequestParameters(CaptureRequest.CONTROL_AWB_MODE, MODE);
List<CaptureStageImpl> captureStages = new ArrayList<>();
captureStages.add(captureStage);
return captureStages;
}
/**
* @hide
*/
@Override
public CaptureProcessorImpl getCaptureProcessor() {
CaptureProcessorImpl captureProcessor =
new CaptureProcessorImpl() {
private ImageWriter mImageWriter;
@Override
public void onOutputSurface(Surface surface, int imageFormat) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
mImageWriter = ImageWriter.newInstance(surface, 1);
}
}
@Override
public void process(Map<Integer, Pair<Image, TotalCaptureResult>> results,
ProcessResultImpl resultCallback, Executor executor) {
throw new RuntimeException("The extension doesn't support capture " +
"results!");
}
@Override
public void process(Map<Integer, Pair<Image, TotalCaptureResult>> results) {
Log.d(TAG, "Started night CaptureProcessor");
Pair<Image, TotalCaptureResult> result = results.get(DEFAULT_STAGE_ID);
if (result == null) {
Log.w(TAG,
"Unable to process since images does not contain all stages.");
return;
} else {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
Image image = mImageWriter.dequeueInputImage();
// Do processing here
ByteBuffer yByteBuffer = image.getPlanes()[0].getBuffer();
ByteBuffer uByteBuffer = image.getPlanes()[2].getBuffer();
ByteBuffer vByteBuffer = image.getPlanes()[1].getBuffer();
// Sample here just simply copy/paste the capture image result
yByteBuffer.put(result.first.getPlanes()[0].getBuffer());
uByteBuffer.put(result.first.getPlanes()[2].getBuffer());
vByteBuffer.put(result.first.getPlanes()[1].getBuffer());
mImageWriter.queueInputImage(image);
}
}
// Close all input images
for (Pair<Image, TotalCaptureResult> imageDataPair : results.values()) {
imageDataPair.first.close();
}
Log.d(TAG, "Completed night CaptureProcessor");
}
@Override
public void onResolutionUpdate(Size size) {
}
@Override
public void onImageFormatUpdate(int imageFormat) {
}
};
return captureProcessor;
}
/**
* @hide
*/
@Override
public void onInit(String cameraId, CameraCharacteristics cameraCharacteristics,
Context context) {
}
/**
* @hide
*/
@Override
public void onDeInit() {
}
/**
* @hide
*/
@Override
public CaptureStageImpl onPresetSession() {
// Set the necessary CaptureRequest parameters via CaptureStage, here we use some
// placeholder set of CaptureRequest.Key values
SettableCaptureStage captureStage = new SettableCaptureStage(SESSION_STAGE_ID);
captureStage.addCaptureRequestParameters(CaptureRequest.CONTROL_AWB_MODE, MODE);
return captureStage;
}
/**
* @hide
*/
@Override
public CaptureStageImpl onEnableSession() {
// Set the necessary CaptureRequest parameters via CaptureStage, here we use some
// placeholder set of CaptureRequest.Key values
SettableCaptureStage captureStage = new SettableCaptureStage(SESSION_STAGE_ID);
captureStage.addCaptureRequestParameters(CaptureRequest.CONTROL_AWB_MODE, MODE);
return captureStage;
}
/**
* @hide
*/
@Override
public CaptureStageImpl onDisableSession() {
// Set the necessary CaptureRequest parameters via CaptureStage, here we use some
// placeholder set of CaptureRequest.Key values
SettableCaptureStage captureStage = new SettableCaptureStage(SESSION_STAGE_ID);
captureStage.addCaptureRequestParameters(CaptureRequest.CONTROL_AWB_MODE, MODE);
return captureStage;
}
/**
* @hide
*/
@Override
public int getMaxCaptureStage() {
return 3;
}
/**
* @hide
*/
@Override
public List<Pair<Integer, Size[]>> getSupportedResolutions() {
return null;
}
@Override
public List<CaptureRequest.Key> getAvailableCaptureRequestKeys() {
return new ArrayList<>();
}
@Override
public List<CaptureResult.Key> getAvailableCaptureResultKeys() {
return new ArrayList<>();
}
}
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