| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef V4L2_CAMERA_HAL_METADATA_PARTIAL_METADATA_INTERFACE_H_ |
| #define V4L2_CAMERA_HAL_METADATA_PARTIAL_METADATA_INTERFACE_H_ |
| |
| #include <array> |
| #include <vector> |
| |
| #include <camera/CameraMetadata.h> |
| |
| #include "../common.h" |
| #include "array_vector.h" |
| |
| namespace v4l2_camera_hal { |
| |
| // A subset of metadata. |
| class PartialMetadataInterface { |
| public: |
| virtual ~PartialMetadataInterface(){}; |
| |
| // The metadata tags this partial metadata is responsible for. |
| // See system/media/camera/docs/docs.html for descriptions of each tag. |
| virtual std::vector<int32_t> StaticTags() const = 0; |
| virtual std::vector<int32_t> ControlTags() const = 0; |
| virtual std::vector<int32_t> DynamicTags() const = 0; |
| |
| // Add all the static properties this partial metadata |
| // is responsible for to |metadata|. |
| virtual int PopulateStaticFields(android::CameraMetadata* metadata) const = 0; |
| // Add all the dynamic states this partial metadata |
| // is responsible for to |metadata|. |
| virtual int PopulateDynamicFields( |
| android::CameraMetadata* metadata) const = 0; |
| // Add default request values for a given template type for all the controls |
| // this partial metadata owns. |
| virtual int PopulateTemplateRequest( |
| int template_type, android::CameraMetadata* metadata) const = 0; |
| // Check if the requested control values from |metadata| (for controls |
| // this partial metadata owns) are supported. Empty/null values for owned |
| // control tags indicate no change, and are thus inherently supported. |
| // If |metadata| is empty all controls are implicitly supported. |
| virtual bool SupportsRequestValues( |
| const android::CameraMetadata& metadata) const = 0; |
| // Set all the controls this partial metadata |
| // is responsible for from |metadata|. Empty/null values for owned control |
| // tags indicate no change. If |metadata| is empty no controls should |
| // be changed. |
| virtual int SetRequestValues(const android::CameraMetadata& metadata) = 0; |
| }; |
| |
| } // namespace v4l2_camera_hal |
| |
| #endif // V4L2_CAMERA_HAL_METADATA_PARTIAL_METADATA_INTERFACE_H_ |