| /* |
| * 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.RestrictTo; |
| import androidx.annotation.RestrictTo.Scope; |
| |
| import java.util.Collection; |
| |
| /** |
| * The base camera interface. It is controlled by the change of state in use cases. |
| * |
| * @hide |
| */ |
| @RestrictTo(Scope.LIBRARY_GROUP) |
| public interface BaseCamera extends UseCase.StateChangeListener, |
| CameraControl.ControlUpdateListener { |
| /** |
| * Open the camera asynchronously. |
| * |
| * <p>Once the camera has been opened use case state transitions can be used to control the |
| * camera pipeline. |
| */ |
| void open(); |
| |
| /** |
| * Close the camera asynchronously. |
| * |
| * <p>Once the camera is closed the camera will no longer produce data. The camera must be |
| * reopened for it to produce data again. |
| */ |
| void close(); |
| |
| /** |
| * Release the camera. |
| * |
| * <p>Once the camera is released it is permanently closed. A new instance must be created to |
| * access the camera. |
| */ |
| void release(); |
| |
| /** |
| * Sets the use case to be in the state where the capture session will be configured to handle |
| * capture requests from the use cases. |
| */ |
| void addOnlineUseCase(Collection<UseCase> useCases); |
| |
| /** |
| * Removes the use case to be in the state where the capture session will be configured to |
| * handle capture requests from the use cases. |
| */ |
| void removeOnlineUseCase(Collection<UseCase> useCases); |
| |
| /** Returns the global CameraControl attached to this camera. */ |
| CameraControl getCameraControl(); |
| |
| /** Returns an interface to retrieve characteristics of the camera. */ |
| CameraInfo getCameraInfo() throws CameraInfoUnavailableException; |
| } |