public final class

AdaptingCaptureProcessor

extends java.lang.Object

implements CaptureProcessor

 java.lang.Object

↳androidx.camera.extensions.internal.AdaptingCaptureProcessor

Gradle dependencies

compile group: 'androidx.camera', name: 'camera-extensions', version: '1.2.0-alpha01'

  • groupId: androidx.camera
  • artifactId: camera-extensions
  • version: 1.2.0-alpha01

Artifact androidx.camera:camera-extensions:1.2.0-alpha01 it located at Google repository (https://maven.google.com/)

Overview

A CaptureProcessor that calls a vendor provided implementation.

Summary

Constructors
publicAdaptingCaptureProcessor(CaptureProcessorImpl impl)

Methods
public voidonOutputSurface(Surface surface, int imageFormat)

public voidonResolutionUpdate(Size size)

public voidprocess(ImageProxyBundle bundle)

from java.lang.Objectclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructors

public AdaptingCaptureProcessor(CaptureProcessorImpl impl)

Methods

public void onOutputSurface(Surface surface, int imageFormat)

public void process(ImageProxyBundle bundle)

public void onResolutionUpdate(Size size)

Source

/*
 * Copyright 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.
 */

package androidx.camera.extensions.internal;

import android.hardware.camera2.CaptureResult;
import android.hardware.camera2.TotalCaptureResult;
import android.media.Image;
import android.util.Pair;
import android.util.Size;
import android.view.Surface;

import androidx.annotation.NonNull;
import androidx.annotation.RequiresApi;
import androidx.camera.camera2.impl.Camera2CameraCaptureResultConverter;
import androidx.camera.core.ExperimentalGetImage;
import androidx.camera.core.ImageInfo;
import androidx.camera.core.ImageProxy;
import androidx.camera.core.impl.CameraCaptureResult;
import androidx.camera.core.impl.CameraCaptureResults;
import androidx.camera.core.impl.CaptureProcessor;
import androidx.camera.core.impl.ImageProxyBundle;
import androidx.camera.extensions.impl.CaptureProcessorImpl;

import com.google.common.util.concurrent.ListenableFuture;

import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

/**
 * A {@link CaptureProcessor} that calls a vendor provided implementation.
 */
@RequiresApi(21) // TODO(b/200306659): Remove and replace with annotation on package-info.java
public final class AdaptingCaptureProcessor implements CaptureProcessor {
    private final CaptureProcessorImpl mImpl;

    public AdaptingCaptureProcessor(@NonNull CaptureProcessorImpl impl) {
        mImpl = impl;
    }

    @Override
    public void onOutputSurface(@NonNull Surface surface, int imageFormat) {
        mImpl.onOutputSurface(surface, imageFormat);
        mImpl.onImageFormatUpdate(imageFormat);
    }

    @Override
    @ExperimentalGetImage
    public void process(@NonNull ImageProxyBundle bundle) {
        List<Integer> ids = bundle.getCaptureIds();

        Map<Integer, Pair<Image, TotalCaptureResult>> bundleMap = new HashMap<>();

        for (Integer id : ids) {
            ListenableFuture<ImageProxy> imageProxyListenableFuture = bundle.getImageProxy(id);
            try {
                ImageProxy imageProxy = imageProxyListenableFuture.get(5, TimeUnit.SECONDS);
                Image image = imageProxy.getImage();
                if (image == null) {
                    return;
                }

                ImageInfo imageInfo = imageProxy.getImageInfo();

                CameraCaptureResult result =
                        CameraCaptureResults.retrieveCameraCaptureResult(imageInfo);
                if (result == null) {
                    return;
                }

                CaptureResult captureResult =
                        Camera2CameraCaptureResultConverter.getCaptureResult(result);
                if (captureResult == null) {
                    return;
                }

                TotalCaptureResult totalCaptureResult = (TotalCaptureResult) captureResult;
                if (totalCaptureResult == null) {
                    return;
                }

                Pair<Image, TotalCaptureResult> imageCapturePair = new Pair<>(imageProxy.getImage(),
                        totalCaptureResult);
                bundleMap.put(id, imageCapturePair);
            } catch (TimeoutException | ExecutionException | InterruptedException e) {
                return;
            }
        }

        mImpl.process(bundleMap);
    }

    @Override
    public void onResolutionUpdate(@NonNull Size size) {
        mImpl.onResolutionUpdate(size);
    }
}