1 /* 2 * Copyright (C) 2012 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_SERVERS_CAMERA_CAMERA2_FRAMEPROCESSOR_H 18 #define ANDROID_SERVERS_CAMERA_CAMERA2_FRAMEPROCESSOR_H 19 20 #include <utils/Thread.h> 21 #include <utils/String16.h> 22 #include <utils/Vector.h> 23 #include <utils/KeyedVector.h> 24 #include <utils/List.h> 25 #include <camera/CameraMetadata.h> 26 27 #include "common/FrameProcessorBase.h" 28 29 struct camera_frame_metadata; 30 31 namespace android { 32 33 class Camera2Client; 34 35 namespace camera2 { 36 37 /* Output frame metadata processing thread. This thread waits for new 38 * frames from the device, and analyzes them as necessary. 39 */ 40 class FrameProcessor : public FrameProcessorBase { 41 public: 42 FrameProcessor(wp<CameraDeviceBase> device, sp<Camera2Client> client); 43 ~FrameProcessor(); 44 45 private: 46 static const int32_t NOT_SET = -1; 47 48 wp<Camera2Client> mClient; 49 50 bool mSynthesize3ANotify; 51 52 int mLastFrameNumberOfFaces; 53 54 void processNewFrames(const sp<Camera2Client> &client); 55 56 virtual bool processSingleFrame(CaptureResult &frame, 57 const sp<CameraDeviceBase> &device); 58 59 status_t processFaceDetect(const CameraMetadata &frame, 60 const sp<Camera2Client> &client); 61 62 // Send 3A state change notifications to client based on frame metadata 63 status_t process3aState(const CaptureResult &frame, 64 const sp<Camera2Client> &client); 65 66 // Helper for process3aState 67 template<typename Src, typename T> 68 bool updatePendingState(const CameraMetadata& result, int32_t tag, T* value, 69 int32_t frameNumber, int cameraId); 70 71 72 struct AlgState { 73 // TODO: also track AE mode 74 camera_metadata_enum_android_control_af_mode afMode; 75 camera_metadata_enum_android_control_awb_mode awbMode; 76 77 camera_metadata_enum_android_control_ae_state aeState; 78 camera_metadata_enum_android_control_af_state afState; 79 camera_metadata_enum_android_control_awb_state awbState; 80 81 int32_t afTriggerId; 82 int32_t aeTriggerId; 83 84 // These defaults need to match those in Parameters.cpp AlgStateAlgState85 AlgState() : 86 afMode((camera_metadata_enum_android_control_af_mode)NOT_SET), 87 awbMode((camera_metadata_enum_android_control_awb_mode)NOT_SET), 88 aeState((camera_metadata_enum_android_control_ae_state)NOT_SET), 89 afState((camera_metadata_enum_android_control_af_state)NOT_SET), 90 awbState((camera_metadata_enum_android_control_awb_state)NOT_SET), 91 afTriggerId(NOT_SET), 92 aeTriggerId(NOT_SET) { 93 } 94 }; 95 96 AlgState m3aState; 97 98 // frame number -> pending 3A states that not all data are received yet. 99 KeyedVector<int32_t, AlgState> mPending3AStates; 100 101 // Whether the partial result is enabled for this device 102 bool mUsePartialResult; 103 104 // Track most recent frame number for which 3A notifications were sent for. 105 // Used to filter against sending 3A notifications for the same frame 106 // several times. 107 int32_t mLast3AFrameNumber; 108 109 // Emit FaceDetection event to java if faces changed 110 void callbackFaceDetection(const sp<Camera2Client>& client, 111 const camera_frame_metadata &metadata); 112 }; 113 114 115 }; //namespace camera2 116 }; //namespace android 117 118 #endif 119