1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.frameworks.cameraservice.service@2.0; 18 19 import android.frameworks.cameraservice.device@2.0::CameraMetadata; 20 import android.frameworks.cameraservice.device@2.0::ICameraDeviceUser; 21 import android.frameworks.cameraservice.device@2.0::ICameraDeviceCallback; 22 import android.frameworks.cameraservice.common@2.0::Status; 23 import android.frameworks.cameraservice.common@2.0::ProviderIdAndVendorTagSections; 24 import ICameraServiceListener; 25 26 interface ICameraService { 27 /** 28 * connectDevice 29 * 30 * Return an ICameraDeviceUser interface for the requested cameraId. 31 * 32 * Note: The client must have camera permissions to call this method 33 * successfully. 34 * 35 * @param callback the ICameraDeviceCallback interface which will get called 36 * the cameraserver when capture is started, results are received 37 * etc. 38 * @param cameraId the cameraId of the camera device to connect to. 39 * 40 * @return status Status code of the operation. 41 * @return device ICameraDeviceUser interface to the camera device requested. 42 */ 43 connectDevice(ICameraDeviceCallback callback, string cameraId) 44 generates (Status status, ICameraDeviceUser device); 45 46 /** 47 * Add listener for changes to camera device status. 48 * 49 * Also returns the set of currently-known camera IDs and state of each 50 * device. Adding multiple listeners must result in the callbacks defined by 51 * ICameraServiceListener being called on all of them, on change of device 52 * status. 53 * 54 * @param listener the listener interface to be added. The cameraserver will 55 * call callbacks on this interface when a camera device's status 56 * changes. 57 * @return status Status code of the operation 58 * @return statuses a list of CameraStatusAndIds which store the deviceIds 59 * and their corresponding statuses. 60 */ 61 addListener(ICameraServiceListener listener) 62 generates (Status status, vec<CameraStatusAndId> statuses); 63 64 /** 65 * Remove listener for changes to camera device status. 66 * 67 * @param listener the listener to be removed from receiving callbacks on 68 * changes to device state. 69 * @return status Status code of the operation. 70 */ 71 removeListener(ICameraServiceListener listener) generates (Status status); 72 73 /** 74 * Read the static camera metadata for a camera device. 75 * @param cameraId the camera id of the camera device, whose metadata is 76 * being requested. 77 * @return status the status code of the operation 78 * @return metadata the static metadata of the camera device requested. 79 */ 80 getCameraCharacteristics(string cameraId) 81 generates (Status status, CameraMetadata metadata); 82 83 /** 84 * Read in the provider ids and corresponding vendor tag sections from the camera server. 85 * Intended to be used by the native code of CameraMetadata to correctly 86 * interpret camera metadata with vendor tags. 87 * 88 * Note: VendorTag caches may be created in process, by clients. A HIDL api 89 * is not provided for this. 90 * 91 * @return status the status code of the operation. 92 * @return providerIdAndVendorTagSections the list of provider ids and corresponding 93 * vendor tag sections. 94 */ 95 getCameraVendorTagSections() 96 generates (Status status, 97 vec<ProviderIdAndVendorTagSections> providerIdAndVendorTagSections); 98 }; 99
