public final class

Camera2UseCaseConfigFactory

extends java.lang.Object

implements UseCaseConfigFactory

 java.lang.Object

↳androidx.camera.camera2.internal.Camera2UseCaseConfigFactory

Gradle dependencies

compile group: 'androidx.camera', name: 'camera-camera2', version: '1.2.0-alpha01'

  • groupId: androidx.camera
  • artifactId: camera-camera2
  • version: 1.2.0-alpha01

Artifact androidx.camera:camera-camera2:1.2.0-alpha01 it located at Google repository (https://maven.google.com/)

Overview

Implementation of UseCaseConfigFactory to provide the default camera2 configurations for use cases.

Summary

Constructors
publicCamera2UseCaseConfigFactory(Context context)

Methods
public ConfiggetConfig(UseCaseConfigFactory.CaptureType captureType, int captureMode)

Returns the configuration for the given capture type, or null if the configuration cannot be produced.

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

Constructors

public Camera2UseCaseConfigFactory(Context context)

Methods

public Config getConfig(UseCaseConfigFactory.CaptureType captureType, int captureMode)

Returns the configuration for the given capture type, or null if the configuration cannot be produced.

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.camera2.internal;

import static androidx.camera.core.impl.ImageOutputConfig.OPTION_MAX_RESOLUTION;
import static androidx.camera.core.impl.ImageOutputConfig.OPTION_TARGET_ROTATION;
import static androidx.camera.core.impl.UseCaseConfig.OPTION_CAPTURE_CONFIG_UNPACKER;
import static androidx.camera.core.impl.UseCaseConfig.OPTION_DEFAULT_CAPTURE_CONFIG;
import static androidx.camera.core.impl.UseCaseConfig.OPTION_DEFAULT_SESSION_CONFIG;
import static androidx.camera.core.impl.UseCaseConfig.OPTION_SESSION_CONFIG_UNPACKER;

import android.content.Context;
import android.hardware.camera2.CameraDevice;

import androidx.annotation.NonNull;
import androidx.annotation.RequiresApi;
import androidx.camera.camera2.internal.compat.workaround.PreviewPixelHDRnet;
import androidx.camera.core.ImageCapture;
import androidx.camera.core.ImageCapture.CaptureMode;
import androidx.camera.core.impl.CaptureConfig;
import androidx.camera.core.impl.Config;
import androidx.camera.core.impl.MutableOptionsBundle;
import androidx.camera.core.impl.OptionsBundle;
import androidx.camera.core.impl.SessionConfig;
import androidx.camera.core.impl.UseCaseConfigFactory;

/**
 * Implementation of UseCaseConfigFactory to provide the default camera2 configurations for use
 * cases.
 */
@RequiresApi(21) // TODO(b/200306659): Remove and replace with annotation on package-info.java
public final class Camera2UseCaseConfigFactory implements UseCaseConfigFactory {
    final DisplayInfoManager mDisplayInfoManager;

    public Camera2UseCaseConfigFactory(@NonNull Context context) {
        mDisplayInfoManager = DisplayInfoManager.getInstance(context);
    }

    /**
     * Returns the configuration for the given capture type, or <code>null</code> if the
     * configuration cannot be produced.
     */
    @NonNull
    @Override
    public Config getConfig(
            @NonNull CaptureType captureType,
            @CaptureMode int captureMode) {
        final MutableOptionsBundle mutableConfig = MutableOptionsBundle.create();

        SessionConfig.Builder sessionBuilder = new SessionConfig.Builder();
        switch (captureType) {
            case IMAGE_CAPTURE:
                sessionBuilder.setTemplateType(
                        captureMode == ImageCapture.CAPTURE_MODE_ZERO_SHUTTER_LAG
                                ? CameraDevice.TEMPLATE_ZERO_SHUTTER_LAG :
                                CameraDevice.TEMPLATE_PREVIEW);
                break;
            case PREVIEW:
            case IMAGE_ANALYSIS:
                sessionBuilder.setTemplateType(CameraDevice.TEMPLATE_PREVIEW);
                break;
            case VIDEO_CAPTURE:
                sessionBuilder.setTemplateType(CameraDevice.TEMPLATE_RECORD);
                break;
        }

        if (captureType == CaptureType.PREVIEW) {
            // Set the WYSIWYG preview for CAPTURE_TYPE_PREVIEW
            PreviewPixelHDRnet.setHDRnet(sessionBuilder);
        }

        mutableConfig.insertOption(OPTION_DEFAULT_SESSION_CONFIG, sessionBuilder.build());

        mutableConfig.insertOption(OPTION_SESSION_CONFIG_UNPACKER,
                Camera2SessionOptionUnpacker.INSTANCE);

        CaptureConfig.Builder captureBuilder = new CaptureConfig.Builder();

        switch (captureType) {
            case IMAGE_CAPTURE:
                captureBuilder.setTemplateType(
                        captureMode == ImageCapture.CAPTURE_MODE_ZERO_SHUTTER_LAG
                                ? CameraDevice.TEMPLATE_ZERO_SHUTTER_LAG :
                        CameraDevice.TEMPLATE_STILL_CAPTURE);
                break;
            case PREVIEW:
            case IMAGE_ANALYSIS:
                captureBuilder.setTemplateType(CameraDevice.TEMPLATE_PREVIEW);
                break;
            case VIDEO_CAPTURE:
                captureBuilder.setTemplateType(CameraDevice.TEMPLATE_RECORD);
                break;
        }
        mutableConfig.insertOption(OPTION_DEFAULT_CAPTURE_CONFIG, captureBuilder.build());

        // Only CAPTURE_TYPE_IMAGE_CAPTURE has its own ImageCaptureOptionUnpacker. Other
        // capture types all use the standard Camera2CaptureOptionUnpacker.
        mutableConfig.insertOption(OPTION_CAPTURE_CONFIG_UNPACKER,
                captureType == CaptureType.IMAGE_CAPTURE ? ImageCaptureOptionUnpacker.INSTANCE
                        : Camera2CaptureOptionUnpacker.INSTANCE);

        if (captureType == CaptureType.PREVIEW) {
            mutableConfig.insertOption(OPTION_MAX_RESOLUTION,
                    mDisplayInfoManager.getPreviewSize());
        }

        int targetRotation = mDisplayInfoManager.getMaxSizeDisplay().getRotation();
        mutableConfig.insertOption(OPTION_TARGET_ROTATION, targetRotation);

        return OptionsBundle.from(mutableConfig);
    }
}