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_RESOLUTION_SELECTOR;
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 static androidx.camera.core.impl.UseCaseConfig.OPTION_ZSL_DISABLED;
import android.content.Context;
import android.util.Size;
import androidx.annotation.NonNull;
import androidx.annotation.RequiresApi;
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;
import androidx.camera.core.resolutionselector.ResolutionSelector;
import androidx.camera.core.resolutionselector.ResolutionStrategy;
/**
* 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();
sessionBuilder.setTemplateType(
TemplateTypeUtil.getSessionConfigTemplateType(captureType, captureMode));
mutableConfig.insertOption(OPTION_DEFAULT_SESSION_CONFIG, sessionBuilder.build());
mutableConfig.insertOption(OPTION_SESSION_CONFIG_UNPACKER,
Camera2SessionOptionUnpacker.INSTANCE);
CaptureConfig.Builder captureBuilder = new CaptureConfig.Builder();
captureBuilder.setTemplateType(
TemplateTypeUtil.getCaptureConfigTemplateType(captureType, captureMode));
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) {
Size previewSize = mDisplayInfoManager.getPreviewSize();
mutableConfig.insertOption(OPTION_MAX_RESOLUTION, previewSize);
ResolutionStrategy resolutionStrategy = new ResolutionStrategy(previewSize,
ResolutionStrategy.FALLBACK_RULE_CLOSEST_LOWER);
mutableConfig.insertOption(OPTION_RESOLUTION_SELECTOR,
new ResolutionSelector.Builder().setResolutionStrategy(
resolutionStrategy).build());
}
int targetRotation = mDisplayInfoManager.getMaxSizeDisplay().getRotation();
mutableConfig.insertOption(OPTION_TARGET_ROTATION, targetRotation);
if (captureType == CaptureType.VIDEO_CAPTURE || captureType == CaptureType.STREAM_SHARING) {
mutableConfig.insertOption(OPTION_ZSL_DISABLED, true);
}
return OptionsBundle.from(mutableConfig);
}
}