Camera2UseCaseConfigFactory.java
/*
* 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.graphics.Point;
import android.hardware.camera2.CameraDevice;
import android.util.Size;
import android.view.WindowManager;
import androidx.annotation.NonNull;
import androidx.camera.camera2.internal.compat.workaround.PreviewPixelHDRnet;
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.
*/
public final class Camera2UseCaseConfigFactory implements UseCaseConfigFactory {
private static final Size MAX_PREVIEW_SIZE = new Size(1920, 1080);
final WindowManager mWindowManager;
public Camera2UseCaseConfigFactory(@NonNull Context context) {
mWindowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
}
/**
* Returns the configuration for the given capture type, or <code>null</code> if the
* configuration cannot be produced.
*/
@NonNull
@Override
@SuppressWarnings("deprecation") /* getDefaultDisplay */
public Config getConfig(@NonNull CaptureType captureType) {
final MutableOptionsBundle mutableConfig = MutableOptionsBundle.create();
SessionConfig.Builder sessionBuilder = new SessionConfig.Builder();
switch (captureType) {
case IMAGE_CAPTURE:
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(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, getPreviewSize());
}
int targetRotation = mWindowManager.getDefaultDisplay().getRotation();
mutableConfig.insertOption(OPTION_TARGET_ROTATION, targetRotation);
return OptionsBundle.from(mutableConfig);
}
/**
* Returns the device's screen resolution, or 1080p, whichever is smaller.
*/
@SuppressWarnings("deprecation") /* getDefaultDisplay */
private Size getPreviewSize() {
Point displaySize = new Point();
mWindowManager.getDefaultDisplay().getRealSize(displaySize);
Size displayViewSize;
if (displaySize.x > displaySize.y) {
displayViewSize = new Size(displaySize.x, displaySize.y);
} else {
displayViewSize = new Size(displaySize.y, displaySize.x);
}
return displayViewSize.getWidth() * displayViewSize.getHeight()
> MAX_PREVIEW_SIZE.getWidth() * MAX_PREVIEW_SIZE.getHeight() ? MAX_PREVIEW_SIZE
: displayViewSize;
}
}