1 /* 2 * Copyright (C) 2020 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_SERVICE_PROXY_WRAPPER_H_ 18 #define ANDROID_SERVERS_CAMERA_SERVICE_PROXY_WRAPPER_H_ 19 20 #include <android/hardware/ICameraServiceProxy.h> 21 22 #include <utils/Mutex.h> 23 #include <utils/String8.h> 24 #include <utils/String16.h> 25 #include <utils/StrongPointer.h> 26 #include <utils/Timers.h> 27 28 #include <camera/CameraSessionStats.h> 29 30 namespace android { 31 32 class CameraServiceProxyWrapper { 33 private: 34 // Guard mCameraServiceProxy 35 static Mutex sProxyMutex; 36 // Cached interface to the camera service proxy in system service 37 static sp<hardware::ICameraServiceProxy> sCameraServiceProxy; 38 39 struct CameraSessionStatsWrapper { 40 hardware::CameraSessionStats mSessionStats; 41 Mutex mLock; // lock for per camera session stats 42 CameraSessionStatsWrapperCameraSessionStatsWrapper43 CameraSessionStatsWrapper(const String16& cameraId, int facing, int newCameraState, 44 const String16& clientName, int apiLevel, bool isNdk, int32_t latencyMs) : 45 mSessionStats(cameraId, facing, newCameraState, clientName, apiLevel, isNdk, latencyMs) 46 {} 47 48 void onOpen(); 49 void onClose(int32_t latencyMs); 50 void onStreamConfigured(int operatingMode, bool internalReconfig, int32_t latencyMs); 51 void onActive(float maxPreviewFps); 52 void onIdle(int64_t requestCount, int64_t resultErrorCount, bool deviceError, 53 const std::string& userTag, int32_t videoStabilizationMode, 54 const std::vector<hardware::CameraStreamStats>& streamStats); 55 }; 56 57 // Lock for camera session stats map 58 static Mutex mLock; 59 // Map from camera id to the camera's session statistics 60 static std::map<String8, std::shared_ptr<CameraSessionStatsWrapper>> mSessionStatsMap; 61 62 /** 63 * Update the session stats of a given camera device (open/close/active/idle) with 64 * the camera proxy service in the system service 65 */ 66 static void updateProxyDeviceState( 67 const hardware::CameraSessionStats& sessionStats); 68 69 static sp<hardware::ICameraServiceProxy> getCameraServiceProxy(); 70 71 public: 72 // Open 73 static void logOpen(const String8& id, int facing, 74 const String16& clientPackageName, int apiLevel, bool isNdk, 75 int32_t latencyMs); 76 77 // Close 78 static void logClose(const String8& id, int32_t latencyMs); 79 80 // Stream configuration 81 static void logStreamConfigured(const String8& id, int operatingMode, bool internalReconfig, 82 int32_t latencyMs); 83 84 // Session state becomes active 85 static void logActive(const String8& id, float maxPreviewFps); 86 87 // Session state becomes idle 88 static void logIdle(const String8& id, 89 int64_t requestCount, int64_t resultErrorCount, bool deviceError, 90 const std::string& userTag, int32_t videoStabilizationMode, 91 const std::vector<hardware::CameraStreamStats>& streamStats); 92 93 // Ping camera service proxy for user update 94 static void pingCameraServiceProxy(); 95 96 // Return the current top activity rotate and crop override. 97 static int getRotateAndCropOverride(String16 packageName, int lensFacing, int userId); 98 99 // Detect if the camera is disabled by device policy. 100 static bool isCameraDisabled(int userId); 101 }; 102 103 } // android 104 105 #endif // ANDROID_SERVERS_CAMERA_SERVICE_PROXY_WRAPPER_H_ 106