DebugViewProvider.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.common;
import android.view.SurfaceView;
import androidx.annotation.Nullable;
import androidx.media3.common.util.UnstableApi;
/** Provider for views to show diagnostic information during a transformation, for debugging. */
@UnstableApi
public interface DebugViewProvider {
/** Debug view provider that doesn't show any debug info. */
DebugViewProvider NONE = (int width, int height) -> null;
/**
* Returns a new surface view to show a preview of transformer output with the given width/height
* in pixels, or {@code null} if no debug information should be shown.
*
* <p>This method may be called on an arbitrary thread.
*/
@Nullable
SurfaceView getDebugPreviewSurfaceView(int width, int height);
}