/*
 * 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_H_
#define V4L2_CAMERA_HAL_METADATA_H_

#include <set>

#include <camera/CameraMetadata.h>
#include <hardware/camera3.h>

#include "../common.h"
#include "metadata_common.h"

namespace v4l2_camera_hal {
class Metadata {
 public:
  Metadata(PartialMetadataSet components);
  virtual ~Metadata();

  int FillStaticMetadata(android::CameraMetadata* metadata);
  bool IsValidRequest(const android::CameraMetadata& metadata);
  int GetRequestTemplate(int template_type,
                         android::CameraMetadata* template_metadata);
  int SetRequestSettings(const android::CameraMetadata& metadata);
  int FillResultMetadata(android::CameraMetadata* metadata);

 private:
  // The overall metadata is broken down into several distinct pieces.
  // Note: it is undefined behavior if multiple components share tags.
  PartialMetadataSet components_;

  DISALLOW_COPY_AND_ASSIGN(Metadata);
};

}  // namespace v4l2_camera_hal

#endif  // V4L2_CAMERA_HAL_V4L2_METADATA_H_