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// 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.
//
#include "./metadata.h"
#include <stdlib.h>
#include <string.h>
#include "webp/types.h"
void MetadataInit(Metadata* const metadata) {
if (metadata == NULL) return;
memset(metadata, 0, sizeof(*metadata));
}
void MetadataPayloadDelete(MetadataPayload* const payload) {
if (payload == NULL) return;
free(payload->bytes);
payload->bytes = NULL;
payload->size = 0;
}
void MetadataFree(Metadata* const metadata) {
if (metadata == NULL) return;
MetadataPayloadDelete(&metadata->exif);
MetadataPayloadDelete(&metadata->iccp);
MetadataPayloadDelete(&metadata->xmp);
}
int MetadataCopy(const char* metadata, size_t metadata_len,
MetadataPayload* const payload) {
if (metadata == NULL || metadata_len == 0 || payload == NULL) return 0;
payload->bytes = (uint8_t*)malloc(metadata_len);
if (payload->bytes == NULL) return 0;
payload->size = metadata_len;
memcpy(payload->bytes, metadata, metadata_len);
return 1;
}
// -----------------------------------------------------------------------------
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