1 /* 2 * Copyright (C) 2008 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 #ifndef ANDROID_HARDWARE_ICAMERA_H 18 #define ANDROID_HARDWARE_ICAMERA_H 19 20 #include <utils/RefBase.h> 21 #include <binder/IInterface.h> 22 #include <binder/Parcel.h> 23 #include <binder/IMemory.h> 24 #include <utils/String8.h> 25 #include <camera/Camera.h> 26 27 namespace android { 28 29 class ICameraClient; 30 class IGraphicBufferProducer; 31 class Surface; 32 33 class ICamera: public IInterface 34 { 35 /** 36 * Keep up-to-date with ICamera.aidl in frameworks/base 37 */ 38 public: 39 DECLARE_META_INTERFACE(Camera); 40 41 virtual void disconnect() = 0; 42 43 // connect new client with existing camera remote 44 virtual status_t connect(const sp<ICameraClient>& client) = 0; 45 46 // prevent other processes from using this ICamera interface 47 virtual status_t lock() = 0; 48 49 // allow other processes to use this ICamera interface 50 virtual status_t unlock() = 0; 51 52 // pass the buffered IGraphicBufferProducer to the camera service 53 virtual status_t setPreviewTarget( 54 const sp<IGraphicBufferProducer>& bufferProducer) = 0; 55 56 // set the preview callback flag to affect how the received frames from 57 // preview are handled. Enabling preview callback flags disables any active 58 // preview callback surface set by setPreviewCallbackTarget(). 59 virtual void setPreviewCallbackFlag(int flag) = 0; 60 // set a buffer interface to use for client-received preview frames instead 61 // of preview callback buffers. Passing a valid interface here disables any 62 // active preview callbacks set by setPreviewCallbackFlag(). Passing NULL 63 // disables the use of the callback target. 64 virtual status_t setPreviewCallbackTarget( 65 const sp<IGraphicBufferProducer>& callbackProducer) = 0; 66 67 // start preview mode, must call setPreviewTarget first 68 virtual status_t startPreview() = 0; 69 70 // stop preview mode 71 virtual void stopPreview() = 0; 72 73 // get preview state 74 virtual bool previewEnabled() = 0; 75 76 // start recording mode 77 virtual status_t startRecording() = 0; 78 79 // stop recording mode 80 virtual void stopRecording() = 0; 81 82 // get recording state 83 virtual bool recordingEnabled() = 0; 84 85 // release a recording frame 86 virtual void releaseRecordingFrame(const sp<IMemory>& mem) = 0; 87 88 // auto focus 89 virtual status_t autoFocus() = 0; 90 91 // cancel auto focus 92 virtual status_t cancelAutoFocus() = 0; 93 94 /* 95 * take a picture. 96 * @param msgType the message type an application selectively turn on/off 97 * on a photo-by-photo basis. The supported message types are: 98 * CAMERA_MSG_SHUTTER, CAMERA_MSG_RAW_IMAGE, CAMERA_MSG_COMPRESSED_IMAGE, 99 * and CAMERA_MSG_POSTVIEW_FRAME. Any other message types will be ignored. 100 */ 101 virtual status_t takePicture(int msgType) = 0; 102 103 // set preview/capture parameters - key/value pairs 104 virtual status_t setParameters(const String8& params) = 0; 105 106 // get preview/capture parameters - key/value pairs 107 virtual String8 getParameters() const = 0; 108 109 // send command to camera driver 110 virtual status_t sendCommand(int32_t cmd, int32_t arg1, int32_t arg2) = 0; 111 112 // tell the camera hal to store meta data or real YUV data in video buffers. 113 virtual status_t storeMetaDataInBuffers(bool enabled) = 0; 114 }; 115 116 // ---------------------------------------------------------------------------- 117 118 class BnCamera: public BnInterface<ICamera> 119 { 120 public: 121 virtual status_t onTransact( uint32_t code, 122 const Parcel& data, 123 Parcel* reply, 124 uint32_t flags = 0); 125 }; 126 127 }; // namespace android 128 129 #endif 130
