CameraCharacteristicsProvider.java
/*
* Copyright 2023 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.compat.workaround;
import android.hardware.camera2.CameraCharacteristics;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.annotation.RequiresApi;
/**
* An interface for providing camera characteristics from
* {@link android.hardware.camera2.CameraCharacteristics.Key}.
*
* <p>This layer of abstraction can be used to customize the behavior of providing
* characteristics for testing.
*/
@RequiresApi(21) // TODO(b/200306659): Remove and replace with annotation on package-info.java
public interface CameraCharacteristicsProvider {
/** Retrieves the camera characteristic value from the provided key. */
@Nullable
<T> T get(@NonNull CameraCharacteristics.Key<T> key);
}