1/* 2 * Copyright (C) 2013 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 17package android.hardware.camera2; 18 19import android.hardware.camera2.CaptureRequest; 20import android.hardware.camera2.impl.CameraMetadataNative; 21import android.hardware.camera2.params.OutputConfiguration; 22import android.hardware.camera2.utils.SubmitInfo; 23import android.view.Surface; 24 25/** @hide */ 26interface ICameraDeviceUser 27{ 28 void disconnect(); 29 30 const int NO_IN_FLIGHT_REPEATING_FRAMES = -1; 31 32 SubmitInfo submitRequest(in CaptureRequest request, boolean streaming); 33 SubmitInfo submitRequestList(in CaptureRequest[] requestList, boolean streaming); 34 35 /** 36 * Cancel the repeating request specified by requestId 37 * Returns the frame number of the last frame that will be produced from this 38 * repeating request, or NO_IN_FLIGHT_REPEATING_FRAMES if no frames were produced 39 * by this repeating request. 40 * 41 * Repeating request may be stopped by camera device due to an error. Canceling a stopped 42 * repeating request will trigger ERROR_ILLEGAL_ARGUMENT. 43 */ 44 long cancelRequest(int requestId); 45 46 /** 47 * Begin the device configuration. 48 * 49 * <p> 50 * beginConfigure must be called before any call to deleteStream, createStream, 51 * or endConfigure. It is not valid to call this when the device is not idle. 52 * <p> 53 */ 54 void beginConfigure(); 55 56 /** 57 * The standard operating mode for a camera device; all API guarantees are in force 58 */ 59 const int NORMAL_MODE = 0; 60 61 /** 62 * High-speed recording mode; only two outputs targeting preview and video recording may be 63 * used, and requests must be batched. 64 */ 65 const int CONSTRAINED_HIGH_SPEED_MODE = 1; 66 67 /** 68 * Start of custom vendor modes 69 */ 70 const int VENDOR_MODE_START = 0x8000; 71 72 /** 73 * End the device configuration. 74 * 75 * <p> 76 * endConfigure must be called after stream configuration is complete (i.e. after 77 * a call to beginConfigure and subsequent createStream/deleteStream calls). This 78 * must be called before any requests can be submitted. 79 * <p> 80 * @param operatingMode The kind of session to create; either NORMAL_MODE or 81 * CONSTRAINED_HIGH_SPEED_MODE. Must be a non-negative value. 82 * @param sessionParams Session wide camera parameters 83 */ 84 void endConfigure(int operatingMode, in CameraMetadataNative sessionParams); 85 86 void deleteStream(int streamId); 87 88 /** 89 * Create an output stream 90 * 91 * <p>Create an output stream based on the given output configuration</p> 92 * 93 * @param outputConfiguration size, format, and other parameters for the stream 94 * @return new stream ID 95 */ 96 int createStream(in OutputConfiguration outputConfiguration); 97 98 /** 99 * Create an input stream 100 * 101 * <p>Create an input stream of width, height, and format</p> 102 * 103 * @param width Width of the input buffers 104 * @param height Height of the input buffers 105 * @param format Format of the input buffers. One of HAL_PIXEL_FORMAT_*. 106 * 107 * @return new stream ID 108 */ 109 int createInputStream(int width, int height, int format); 110 111 /** 112 * Get the surface of the input stream. 113 * 114 * <p>It's valid to call this method only after a stream configuration is completed 115 * successfully and the stream configuration includes a input stream.</p> 116 * 117 * @param surface An output argument for the surface of the input stream buffer queue. 118 */ 119 Surface getInputSurface(); 120 121 // Keep in sync with public API in 122 // frameworks/base/core/java/android/hardware/camera2/CameraDevice.java 123 const int TEMPLATE_PREVIEW = 1; 124 const int TEMPLATE_STILL_CAPTURE = 2; 125 const int TEMPLATE_RECORD = 3; 126 const int TEMPLATE_VIDEO_SNAPSHOT = 4; 127 const int TEMPLATE_ZERO_SHUTTER_LAG = 5; 128 const int TEMPLATE_MANUAL = 6; 129 130 CameraMetadataNative createDefaultRequest(int templateId); 131 132 CameraMetadataNative getCameraInfo(); 133 134 void waitUntilIdle(); 135 136 long flush(); 137 138 void prepare(int streamId); 139 140 void tearDown(int streamId); 141 142 void prepare2(int maxCount, int streamId); 143 144 void updateOutputConfiguration(int streamId, in OutputConfiguration outputConfiguration); 145 146 void finalizeOutputConfigurations(int streamId, in OutputConfiguration outputConfiguration); 147} 148