Camera2Config.java
/*
* Copyright (C) 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.camera2;
import androidx.annotation.NonNull;
import androidx.annotation.RestrictTo;
import androidx.camera.camera2.internal.Camera2CameraFactory;
import androidx.camera.camera2.internal.Camera2DeviceSurfaceManager;
import androidx.camera.camera2.internal.Camera2UseCaseConfigFactory;
import androidx.camera.core.CameraUnavailableException;
import androidx.camera.core.CameraXConfig;
import androidx.camera.core.InitializationException;
import androidx.camera.core.impl.CameraDeviceSurfaceManager;
import androidx.camera.core.impl.CameraFactory;
import androidx.camera.core.impl.UseCaseConfigFactory;
/**
* Convenience class for generating a pre-populated Camera2 {@link CameraXConfig}.
*/
public final class Camera2Config {
private Camera2Config() {
}
/**
* Creates a {@link CameraXConfig} containing the default Camera2 implementation for CameraX.
*/
@NonNull
public static CameraXConfig defaultConfig() {
// Create the camera factory for creating Camera2 camera objects
CameraFactory.Provider cameraFactoryProvider = Camera2CameraFactory::new;
// Create the DeviceSurfaceManager for Camera2
CameraDeviceSurfaceManager.Provider surfaceManagerProvider =
(context, cameraManager, availableCameraIds) -> {
try {
return new Camera2DeviceSurfaceManager(context, cameraManager,
availableCameraIds);
} catch (CameraUnavailableException e) {
throw new InitializationException(e);
}
};
// Create default configuration factory
UseCaseConfigFactory.Provider configFactoryProvider =
context -> new Camera2UseCaseConfigFactory(context);
CameraXConfig.Builder appConfigBuilder =
new CameraXConfig.Builder()
.setCameraFactoryProvider(cameraFactoryProvider)
.setDeviceSurfaceManagerProvider(surfaceManagerProvider)
.setUseCaseConfigFactoryProvider(configFactoryProvider);
return appConfigBuilder.build();
}
/** @hide */
@RestrictTo(RestrictTo.Scope.LIBRARY)
public static final class DefaultProvider implements CameraXConfig.Provider {
@NonNull
@Override
public CameraXConfig getCameraXConfig() {
return defaultConfig();
}
}
}