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/*
* Copyright (C) 2013 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 com.android.camera.app;
import android.hardware.Camera;
import android.os.Handler;
import com.android.ex.camera2.portability.CameraDeviceInfo.Characteristics;
import com.android.ex.camera2.portability.CameraExceptionHandler;
/**
* An interface which defines the camera provider.
*/
public interface CameraProvider {
/**
* Requests the camera device. If the camera device of the same ID is
* already requested, then no-op here.
*
* @param id The ID of the requested camera device.
*/
public void requestCamera(int id);
/**
* Requests the camera device. If the camera device of the same ID is
* already requested, then no-op here.
*
* @param id The ID of the requested camera device.
* @param useNewApi Whether to use the new API if this platform provides it.
*/
public void requestCamera(int id, boolean useNewApi);
public boolean waitingForCamera();
/**
* Releases the camera device.
*
* @param id The camera ID.
*/
public void releaseCamera(int id);
/**
* Sets a callback for handling camera api runtime exceptions on
* a handler.
*/
public void setCameraExceptionHandler(CameraExceptionHandler exceptionHandler);
/**
* Get the {@link Characteristics} of the given camera.
*
* @param cameraId Which camera.
* @return The static characteristics of that camera.
*/
public Characteristics getCharacteristics(int cameraId);
/**
* @returns The current camera id.
*/
public int getCurrentCameraId();
/**
* Returns the total number of cameras available on the device.
*/
public int getNumberOfCameras();
/**
* @returns The lowest ID of the back camera or -1 if not available.
*/
public int getFirstBackCameraId();
/**
* @return The lowest ID of the front camera or -1 if not available.
*/
public int getFirstFrontCameraId();
/**
* @returns Whether the camera is facing front.
*/
public boolean isFrontFacingCamera(int id);
/**
* @returns Whether the camera is facing back.
*/
public boolean isBackFacingCamera(int id);
}
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