| /* |
| * Copyright 2021 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.internal.sessionprocessor; |
| |
| import androidx.annotation.NonNull; |
| import androidx.annotation.Nullable; |
| import androidx.annotation.RequiresApi; |
| |
| /** |
| * An interface to receive and process the upcoming next available Image. |
| */ |
| @RequiresApi(21) // TODO(b/200306659): Remove and replace with annotation on package-info.java |
| public interface ImageProcessor { |
| /** |
| * The reference count will be decremented when this method returns. If an extension wants |
| * to hold onto the image, it should increment the reference count in this method and |
| * decrement it when the image is no longer needed. |
| * |
| * <p>If OEM is not closing(decrement) the image fast enough, the imageReference passed |
| * in this method might contain null image meaning that the Image was closed to prevent |
| * preview from stalling. |
| */ |
| void onNextImageAvailable( |
| int outputStreamId, |
| long timestampNs, |
| @NonNull ImageReference imageReference, |
| @Nullable String physicalCameraId); |
| } |
