1 /* 2 * Copyright (C) 2014 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_CAMERA_CLIENT_CAMERAUTILS_H 18 #define ANDROID_CAMERA_CLIENT_CAMERAUTILS_H 19 20 #include <binder/IMemory.h> 21 #include <camera/CameraMetadata.h> 22 #include <utils/Errors.h> 23 #include <utils/RefBase.h> 24 25 #include <stdint.h> 26 27 namespace android { 28 29 /** 30 * CameraUtils contains utility methods that are shared between the native 31 * camera client, and the camera service. 32 */ 33 class CameraUtils { 34 public: 35 /** 36 * Calculate the ANativeWindow transform from the static camera 37 * metadata. This is based on the sensor orientation and lens facing 38 * attributes of the camera device. 39 * 40 * Returns OK on success, or a negative error code. 41 */ 42 static status_t getRotationTransform(const CameraMetadata& staticInfo, 43 /*out*/int32_t* transform); 44 45 /** 46 * Check if the image data is VideoNativeHandleMetadata, that contains a native handle. 47 */ 48 static bool isNativeHandleMetadata(const sp<IMemory>& imageData); 49 50 private: 51 CameraUtils(); 52 }; 53 54 } /* namespace android */ 55 56 #endif /* ANDROID_CAMERA_CLIENT_CAMERAUTILS_H */ 57 58