1 /* 2 * Copyright (C) 2016 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 V4L2_CAMERA_HAL_METADATA_PROPERTY_H_ 18 #define V4L2_CAMERA_HAL_METADATA_PROPERTY_H_ 19 20 #include "../common.h" 21 #include "metadata_common.h" 22 #include "partial_metadata_interface.h" 23 24 namespace v4l2_camera_hal { 25 26 // A Property is a PartialMetadata that only has a single static tag. 27 template <typename T> 28 class Property : public PartialMetadataInterface { 29 public: 30 Property(int32_t tag, T value) : tag_(tag), value_(std::move(value)){}; 31 32 virtual std::vector<int32_t> StaticTags() const override { return {tag_}; }; 33 34 virtual std::vector<int32_t> ControlTags() const override { return {}; }; 35 36 virtual std::vector<int32_t> DynamicTags() const override { return {}; }; 37 38 virtual int PopulateStaticFields( 39 android::CameraMetadata* metadata) const override { 40 return UpdateMetadata(metadata, tag_, value_); 41 }; 42 43 virtual int PopulateDynamicFields( 44 android::CameraMetadata* metadata) const override { 45 return 0; 46 }; 47 48 virtual int PopulateTemplateRequest( 49 int template_type, android::CameraMetadata* metadata) const override { 50 return 0; 51 }; 52 53 virtual bool SupportsRequestValues( 54 const android::CameraMetadata& metadata) const override { 55 return true; 56 }; 57 58 virtual int SetRequestValues( 59 const android::CameraMetadata& metadata) override { 60 return 0; 61 }; 62 63 private: 64 int32_t tag_; 65 T value_; 66 }; 67 68 } // namespace v4l2_camera_hal 69 70 #endif // V4L2_CAMERA_HAL_METADATA_PROPERTY_H_ 71
