mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
127 lines
3.8 KiB
C
127 lines
3.8 KiB
C
/*
|
|
* copyright (c) 2009 Michael Niedermayer
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "metadata.h"
|
|
|
|
AVMetadataTag *
|
|
av_metadata_get(AVMetadata *m, const char *key, const AVMetadataTag *prev, int flags)
|
|
{
|
|
unsigned int i, j;
|
|
|
|
if(!m)
|
|
return NULL;
|
|
|
|
if(prev) i= prev - m->elems + 1;
|
|
else i= 0;
|
|
|
|
for(; i<m->count; i++){
|
|
const char *s= m->elems[i].key;
|
|
if(flags & AV_METADATA_IGNORE_CASE) for(j=0; toupper(s[j]) == toupper(key[j]) && key[j]; j++);
|
|
else for(j=0; s[j] == key[j] && key[j]; j++);
|
|
if(key[j])
|
|
continue;
|
|
if(s[j] && !(flags & AV_METADATA_IGNORE_SUFFIX))
|
|
continue;
|
|
return &m->elems[i];
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
int av_metadata_set(AVMetadata **pm, AVMetadataTag elem)
|
|
{
|
|
AVMetadata *m= *pm;
|
|
AVMetadataTag *tag= av_metadata_get(m, elem.key, NULL, 0);
|
|
|
|
if(!m)
|
|
m=*pm= av_mallocz(sizeof(*m));
|
|
|
|
if(tag){
|
|
av_free(tag->value);
|
|
av_free(tag->key);
|
|
*tag= m->elems[--m->count];
|
|
}else{
|
|
AVMetadataTag *tmp= av_realloc(m->elems, (m->count+1) * sizeof(*m->elems));
|
|
if(tmp){
|
|
m->elems= tmp;
|
|
}else
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
if(elem.value){
|
|
elem.key = av_strdup(elem.key );
|
|
elem.value= av_strdup(elem.value);
|
|
m->elems[m->count++]= elem;
|
|
}
|
|
if(!m->count)
|
|
av_freep(pm);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void av_metadata_free(AVMetadata **pm)
|
|
{
|
|
AVMetadata *m= *pm;
|
|
|
|
if(m){
|
|
while(m->count--){
|
|
av_free(m->elems[m->count].key);
|
|
av_free(m->elems[m->count].value);
|
|
}
|
|
av_free(m->elems);
|
|
}
|
|
av_freep(pm);
|
|
}
|
|
|
|
#if LIBAVFORMAT_VERSION_MAJOR < 53
|
|
#define FILL_METADATA(s, key, value) { \
|
|
if (value && *value && \
|
|
!av_metadata_get(s->metadata, #key, NULL, AV_METADATA_IGNORE_CASE)) \
|
|
av_metadata_set(&s->metadata, (const AVMetadataTag){#key, value}); \
|
|
}
|
|
#define FILL_METADATA_STR(s, key) FILL_METADATA(s, key, s->key)
|
|
#define FILL_METADATA_INT(s, key) { \
|
|
char number[10]; \
|
|
snprintf(number, sizeof(number), "%d", s->key); \
|
|
if(s->key) FILL_METADATA(s, key, number) }
|
|
|
|
void ff_metadata_sync_compat(AVFormatContext *ctx)
|
|
{
|
|
int i;
|
|
|
|
FILL_METADATA_STR(ctx, title);
|
|
FILL_METADATA_STR(ctx, author);
|
|
FILL_METADATA_STR(ctx, copyright);
|
|
FILL_METADATA_STR(ctx, comment);
|
|
FILL_METADATA_STR(ctx, album);
|
|
FILL_METADATA_INT(ctx, year);
|
|
FILL_METADATA_INT(ctx, track);
|
|
FILL_METADATA_STR(ctx, genre);
|
|
for (i=0; i<ctx->nb_chapters; i++)
|
|
FILL_METADATA_STR(ctx->chapters[i], title);
|
|
for (i=0; i<ctx->nb_programs; i++) {
|
|
FILL_METADATA_STR(ctx->programs[i], name);
|
|
FILL_METADATA_STR(ctx->programs[i], provider_name);
|
|
}
|
|
for (i=0; i<ctx->nb_streams; i++) {
|
|
FILL_METADATA_STR(ctx->streams[i], language);
|
|
FILL_METADATA_STR(ctx->streams[i], filename);
|
|
}
|
|
}
|
|
#endif
|