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/*
* Copyright 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.extensions.impl;
import android.util.Size;
import android.view.Surface;
import androidx.annotation.NonNull;
/**
* Processes an input image stream and produces an output image stream.
*
* @since 1.0
*/
public interface ProcessorImpl {
/**
* Updates where the ProcessorImpl should write the output to.
*
* @param surface The {@link Surface} that the ProcessorImpl should write data into.
* @param imageFormat The format of that the surface expects.
*/
void onOutputSurface(@NonNull Surface surface, int imageFormat);
/**
* Invoked when CameraX changes the configured output resolution.
*
* <p>After this call, {@link CaptureProcessorImpl} should expect any
* {@link android.media.Image} received as input to be at the specified resolution.
*
* @param size for the surface.
*/
void onResolutionUpdate(@NonNull Size size);
/**
* Invoked when CameraX changes the configured input image format.
*
* <p>After this call, {@link CaptureProcessorImpl} should expect any
* {@link android.media.Image} received as input to have the specified image format.
*
* @param imageFormat for the surface.
*/
void onImageFormatUpdate(int imageFormat);
}
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