| /* |
| * Copyright (C) 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.core; |
| |
| import androidx.annotation.NonNull; |
| import androidx.annotation.RestrictTo; |
| import androidx.annotation.RestrictTo.Scope; |
| import androidx.camera.core.CameraCaptureMetaData.AeState; |
| import androidx.camera.core.CameraCaptureMetaData.AfMode; |
| import androidx.camera.core.CameraCaptureMetaData.AfState; |
| import androidx.camera.core.CameraCaptureMetaData.AwbState; |
| import androidx.camera.core.CameraCaptureMetaData.FlashState; |
| |
| /** |
| * The result of a single image capture. |
| * |
| * @hide |
| */ |
| @RestrictTo(Scope.LIBRARY_GROUP) |
| public interface CameraCaptureResult { |
| |
| /** Returns the current auto focus mode of operation. */ |
| @NonNull |
| AfMode getAfMode(); |
| |
| /** Returns the current auto focus state. */ |
| @NonNull |
| AfState getAfState(); |
| |
| /** Returns the current auto exposure state. */ |
| @NonNull |
| AeState getAeState(); |
| |
| /** Returns the current auto white balance state.*/ |
| @NonNull |
| AwbState getAwbState(); |
| |
| /** Returns the current flash state. */ |
| @NonNull |
| FlashState getFlashState(); |
| |
| /** |
| * Returns the timestamp in nanoseconds. |
| * |
| * <p> If the timestamp was unavailable then it will return {@code -1L}. |
| */ |
| long getTimestamp(); |
| |
| /** Returns the tag associated with the capture request. */ |
| Object getTag(); |
| |
| /** An implementation of CameraCaptureResult which always return default results. */ |
| final class EmptyCameraCaptureResult implements CameraCaptureResult { |
| |
| public static CameraCaptureResult create() { |
| return new EmptyCameraCaptureResult(); |
| } |
| |
| @NonNull |
| @Override |
| public AfMode getAfMode() { |
| return AfMode.UNKNOWN; |
| } |
| |
| @NonNull |
| @Override |
| public AfState getAfState() { |
| return AfState.UNKNOWN; |
| } |
| |
| @NonNull |
| @Override |
| public AeState getAeState() { |
| return AeState.UNKNOWN; |
| } |
| |
| @NonNull |
| @Override |
| public AwbState getAwbState() { |
| return AwbState.UNKNOWN; |
| } |
| |
| @NonNull |
| @Override |
| public FlashState getFlashState() { |
| return FlashState.UNKNOWN; |
| } |
| |
| @Override |
| public long getTimestamp() { |
| return -1L; |
| } |
| |
| @Override |
| public Object getTag() { |
| return null; |
| } |
| } |
| } |