UseCaseOccupancy.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.core.internal;
import android.util.Log;
import androidx.annotation.NonNull;
import androidx.camera.core.ImageCapture;
import androidx.camera.core.UseCase;
import androidx.camera.core.VideoCapture;
import java.util.List;
/**
* Checks to see if the number of specific {@link UseCase} exceeds the supported number.
*/
public final class UseCaseOccupancy {
private static final String TAG = "UseCaseOccupancy";
private UseCaseOccupancy() {
}
/**
* Check to see if CameraX supports running the set of use cases.
*
* @return true if the set of use cases is supported, otherwise false
*/
public static boolean checkUseCaseLimitNotExceeded(
@NonNull List<UseCase> useCases) {
int imageCaptureCount = 0;
int videoCaptureCount = 0;
for (UseCase useCase : useCases) {
if (useCase instanceof ImageCapture) {
imageCaptureCount++;
} else if (useCase instanceof VideoCapture) {
videoCaptureCount++;
}
}
if (imageCaptureCount > 1) {
Log.e(TAG, "Exceeded max simultaneously bound image capture use cases.");
return false;
}
if (videoCaptureCount > 1) {
Log.e(TAG, "Exceeded max simultaneously bound video capture use cases.");
return false;
}
return true;
}
}