2 * copyright (c) 2009 Michael Niedermayer
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24 av_metadata_get(AVMetadata *m, const char *key, const AVMetadataTag *prev, int flags)
31 if(prev) i= prev - m->elems + 1;
34 for(; i<m->count; i++){
35 const char *s= m->elems[i].key;
36 if(flags & AV_METADATA_IGNORE_CASE) for(j=0; toupper(s[j]) == toupper(key[j]) && key[j]; j++);
37 else for(j=0; s[j] == key[j] && key[j]; j++);
40 if(s[j] && !(flags & AV_METADATA_IGNORE_SUFFIX))
47 int av_metadata_set(AVMetadata **pm, AVMetadataTag elem)
50 AVMetadataTag *tag= av_metadata_get(m, elem.key, NULL, 0);
53 m=*pm= av_mallocz(sizeof(*m));
58 *tag= m->elems[--m->count];
60 AVMetadataTag *tmp= av_realloc(m->elems, (m->count+1) * sizeof(*m->elems));
64 return AVERROR(ENOMEM);
67 elem.key = av_strdup(elem.key );
68 elem.value= av_strdup(elem.value);
69 m->elems[m->count++]= elem;
77 void av_metadata_free(AVMetadata **pm)
83 av_free(m->elems[m->count].key);
84 av_free(m->elems[m->count].value);
91 #if LIBAVFORMAT_VERSION_MAJOR < 53
92 #define FILL_METADATA(s, key, value) { \
93 if (value && *value && \
94 !av_metadata_get(s->metadata, #key, NULL, AV_METADATA_IGNORE_CASE)) \
95 av_metadata_set(&s->metadata, (const AVMetadataTag){#key, value}); \
97 #define FILL_METADATA_STR(s, key) FILL_METADATA(s, key, s->key)
98 #define FILL_METADATA_INT(s, key) { \
100 snprintf(number, sizeof(number), "%d", s->key); \
101 if(s->key) FILL_METADATA(s, key, number) }
103 void ff_metadata_sync_compat(AVFormatContext *ctx)
107 FILL_METADATA_STR(ctx, title);
108 FILL_METADATA_STR(ctx, author);
109 FILL_METADATA_STR(ctx, copyright);
110 FILL_METADATA_STR(ctx, comment);
111 FILL_METADATA_STR(ctx, album);
112 FILL_METADATA_INT(ctx, year);
113 FILL_METADATA_INT(ctx, track);
114 FILL_METADATA_STR(ctx, genre);
115 for (i=0; i<ctx->nb_chapters; i++)
116 FILL_METADATA_STR(ctx->chapters[i], title);
117 for (i=0; i<ctx->nb_programs; i++) {
118 FILL_METADATA_STR(ctx->programs[i], name);
119 FILL_METADATA_STR(ctx->programs[i], provider_name);
121 for (i=0; i<ctx->nb_streams; i++) {
122 FILL_METADATA_STR(ctx->streams[i], language);
123 FILL_METADATA_STR(ctx->streams[i], filename);