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