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matroskadec: export language of metadata tags when available

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Originally committed as revision 17334 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Aurelien Jacobs 2009-02-15 16:05:37 +00:00
parent 0334f79994
commit f702df396d
1 changed files with 14 additions and 2 deletions
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16
libavformat/matroskadec.c
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@ -176,6 +176,8 @@ typedef struct {
typedef struct {
char *name;
char *string;
char *lang;
uint64_t def;
EbmlList sub;
} MatroskaTag;
@ -418,9 +420,9 @@ static EbmlSyntax matroska_index[] = {
static EbmlSyntax matroska_simpletag[] = {
{ MATROSKA_ID_TAGNAME, EBML_UTF8, 0, offsetof(MatroskaTag,name) },
{ MATROSKA_ID_TAGSTRING, EBML_UTF8, 0, offsetof(MatroskaTag,string) },
{ MATROSKA_ID_TAGLANG, EBML_STR, 0, offsetof(MatroskaTag,lang), {.s="und"} },
{ MATROSKA_ID_TAGDEFAULT, EBML_UINT, 0, offsetof(MatroskaTag,def) },
{ MATROSKA_ID_SIMPLETAG, EBML_NEST, sizeof(MatroskaTag), offsetof(MatroskaTag,sub), {.n=matroska_simpletag} },
{ MATROSKA_ID_TAGLANG, EBML_NONE },
{ MATROSKA_ID_TAGDEFAULT, EBML_NONE },
{ 0 }
};
@ -990,11 +992,21 @@ static void matroska_convert_tag(AVFormatContext *s, EbmlList *list,
int i;
for (i=0; i < list->nb_elem; i++) {
const char *lang = strcmp(tags[i].lang, "und") ? tags[i].lang : NULL;
if (prefix) snprintf(key, sizeof(key), "%s/%s", prefix, tags[i].name);
else av_strlcpy(key, tags[i].name, sizeof(key));
if (tags[i].def || !lang) {
av_metadata_set(metadata, key, tags[i].string);
if (tags[i].sub.nb_elem)
matroska_convert_tag(s, &tags[i].sub, metadata, key);
}
if (lang) {
av_strlcat(key, "-", sizeof(key));
av_strlcat(key, lang, sizeof(key));
av_metadata_set(metadata, key, tags[i].string);
if (tags[i].sub.nb_elem)
matroska_convert_tag(s, &tags[i].sub, metadata, key);
}
}
}