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id3v2: Fix null ptr crash in get_extra_meta_func()

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2011-12-03 05:04:31 +01:00
parent 8bd2b27f6b
commit aedd30b63a
1 changed files with 2 additions and 2 deletions
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4
libavformat/id3v2.c
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@ -409,14 +409,14 @@ static const ID3v2EMFunc *get_extra_meta_func(const char *tag, int isv34)
{
int i = 0;
while (id3v2_extra_meta_funcs[i].tag3) {
if (!memcmp(tag,
if (tag && !memcmp(tag,
(isv34 ? id3v2_extra_meta_funcs[i].tag4 :
id3v2_extra_meta_funcs[i].tag3),
(isv34 ? 4 : 3)))
return &id3v2_extra_meta_funcs[i];
i++;
}
return &id3v2_extra_meta_funcs[i];
return NULL;
}
static void ff_id3v2_parse(AVFormatContext *s, int len, uint8_t version, uint8_t flags, ID3v2ExtraMeta **extra_meta)