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50 lines
1.5 KiB
C
50 lines
1.5 KiB
C
// Copyright 2012 Google Inc. All Rights Reserved.
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//
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// Use of this source code is governed by a BSD-style license
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// that can be found in the COPYING file in the root of the source
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// tree. An additional intellectual property rights grant can be found
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// in the file PATENTS. All contributing project authors may
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// be found in the AUTHORS file in the root of the source tree.
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// -----------------------------------------------------------------------------
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//
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// Metadata types and functions.
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//
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#include "./metadata.h"
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#include <stdlib.h>
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#include <string.h>
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#include "webp/types.h"
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void MetadataInit(Metadata* const metadata) {
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if (metadata == NULL) return;
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memset(metadata, 0, sizeof(*metadata));
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}
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void MetadataPayloadDelete(MetadataPayload* const payload) {
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if (payload == NULL) return;
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free(payload->bytes);
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payload->bytes = NULL;
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payload->size = 0;
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}
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void MetadataFree(Metadata* const metadata) {
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if (metadata == NULL) return;
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MetadataPayloadDelete(&metadata->exif);
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MetadataPayloadDelete(&metadata->iccp);
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MetadataPayloadDelete(&metadata->xmp);
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}
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int MetadataCopy(const char* metadata, size_t metadata_len,
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MetadataPayload* const payload) {
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if (metadata == NULL || metadata_len == 0 || payload == NULL) return 0;
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payload->bytes = (uint8_t*)malloc(metadata_len);
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if (payload->bytes == NULL) return 0;
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payload->size = metadata_len;
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memcpy(payload->bytes, metadata, metadata_len);
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return 1;
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}
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// -----------------------------------------------------------------------------
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