BitmapUtil.java
/*
* Copyright 2022 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.media3.effect;
import android.graphics.Bitmap;
import android.graphics.Matrix;
/** Utility functions for working with {@link Bitmap}. */
/* package */ final class BitmapUtil {
public static Bitmap flipBitmapVertically(Bitmap bitmap) {
Matrix flip = new Matrix();
flip.postScale(1f, -1f);
return Bitmap.createBitmap(
bitmap,
/* x= */ 0,
/* y= */ 0,
bitmap.getWidth(),
bitmap.getHeight(),
flip,
/* filter= */ true);
}
/** Class only contains static methods. */
private BitmapUtil() {}
}