1*b2055c35SXin Li // Copyright 2012 Google Inc. All Rights Reserved. 2*b2055c35SXin Li // 3*b2055c35SXin Li // Use of this source code is governed by a BSD-style license 4*b2055c35SXin Li // that can be found in the COPYING file in the root of the source 5*b2055c35SXin Li // tree. An additional intellectual property rights grant can be found 6*b2055c35SXin Li // in the file PATENTS. All contributing project authors may 7*b2055c35SXin Li // be found in the AUTHORS file in the root of the source tree. 8*b2055c35SXin Li // ----------------------------------------------------------------------------- 9*b2055c35SXin Li // 10*b2055c35SXin Li // Metadata types and functions. 11*b2055c35SXin Li // 12*b2055c35SXin Li 13*b2055c35SXin Li #include "./metadata.h" 14*b2055c35SXin Li 15*b2055c35SXin Li #include <stdlib.h> 16*b2055c35SXin Li #include <string.h> 17*b2055c35SXin Li 18*b2055c35SXin Li #include "webp/types.h" 19*b2055c35SXin Li MetadataInit(Metadata * const metadata)20*b2055c35SXin Livoid MetadataInit(Metadata* const metadata) { 21*b2055c35SXin Li if (metadata == NULL) return; 22*b2055c35SXin Li memset(metadata, 0, sizeof(*metadata)); 23*b2055c35SXin Li } 24*b2055c35SXin Li MetadataPayloadDelete(MetadataPayload * const payload)25*b2055c35SXin Livoid MetadataPayloadDelete(MetadataPayload* const payload) { 26*b2055c35SXin Li if (payload == NULL) return; 27*b2055c35SXin Li free(payload->bytes); 28*b2055c35SXin Li payload->bytes = NULL; 29*b2055c35SXin Li payload->size = 0; 30*b2055c35SXin Li } 31*b2055c35SXin Li MetadataFree(Metadata * const metadata)32*b2055c35SXin Livoid MetadataFree(Metadata* const metadata) { 33*b2055c35SXin Li if (metadata == NULL) return; 34*b2055c35SXin Li MetadataPayloadDelete(&metadata->exif); 35*b2055c35SXin Li MetadataPayloadDelete(&metadata->iccp); 36*b2055c35SXin Li MetadataPayloadDelete(&metadata->xmp); 37*b2055c35SXin Li } 38*b2055c35SXin Li MetadataCopy(const char * metadata,size_t metadata_len,MetadataPayload * const payload)39*b2055c35SXin Liint MetadataCopy(const char* metadata, size_t metadata_len, 40*b2055c35SXin Li MetadataPayload* const payload) { 41*b2055c35SXin Li if (metadata == NULL || metadata_len == 0 || payload == NULL) return 0; 42*b2055c35SXin Li payload->bytes = (uint8_t*)malloc(metadata_len); 43*b2055c35SXin Li if (payload->bytes == NULL) return 0; 44*b2055c35SXin Li payload->size = metadata_len; 45*b2055c35SXin Li memcpy(payload->bytes, metadata, metadata_len); 46*b2055c35SXin Li return 1; 47*b2055c35SXin Li } 48*b2055c35SXin Li 49*b2055c35SXin Li // ----------------------------------------------------------------------------- 50