// Copyright 2012 Google Inc. All Rights Reserved.

//

// Use of this source code is governed by a BSD-style license

// that can be found in the COPYING file in the root of the source

// tree. An additional intellectual property rights grant can be found

// in the file PATENTS. All contributing project authors may

// be found in the AUTHORS file in the root of the source tree.

// -----------------------------------------------------------------------------

//

//  Metadata types and functions.

//

#ifndef WEBP_IMAGEIO_METADATA_H_

#define WEBP_IMAGEIO_METADATA_H_

#include "webp/types.h"

#ifdef __cplusplus

extern "C" {

#endif

typedef struct MetadataPayload {

  uint8_t* bytes;

  size_t size;

} MetadataPayload;

typedef struct Metadata {

  MetadataPayload exif;

  MetadataPayload iccp;

  MetadataPayload xmp;

} Metadata;

#define METADATA_OFFSET(x) offsetof(Metadata, x)

void MetadataInit(Metadata* const metadata);

void MetadataPayloadDelete(MetadataPayload* const payload);

void MetadataFree(Metadata* const metadata);

// Stores 'metadata' to 'payload->bytes', returns false on allocation error.

int MetadataCopy(const char* metadata, size_t metadata_len,

                 MetadataPayload* const payload);

#ifdef __cplusplus

}    // extern "C"

#endif

#endif  // WEBP_IMAGEIO_METADATA_H_