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avutil/avstring: Reimplement av_match_list()

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av_match_list() is only used for whitelists, fix it so it works with
multi-named formats like "mov,mp4,m4a,3gp,3g2,mj2"

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-10-23 04:33:57 +02:00
parent cebe8c8095
commit 3c0b98dced
1 changed files with 13 additions and 14 deletions
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27
libavutil/avstring.c
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@ -404,22 +404,21 @@ end:
int av_match_list(const char *name, const char *list, char separator)
{
const char *p;
char ext1[128], *q;
int i;
const char *p, *q;
p = list;
for (i = 1;; i++) {
q = ext1;
while (*p != '\0' && *p != separator && q - ext1 < sizeof(ext1) - 1)
*q++ = *p++;
*q = '\0';
if (!av_strcasecmp(ext1, name))
return i;
if (*p == '\0')
break;
p++;
for (p = name; p && *p; ) {
for (q = list; q && *q; ) {
int k;
for (k = 0; p[k] == q[k] || (p[k]*q[k] == 0 && p[k]+q[k] == ','); k++)
if (k && (!p[k] || p[k] == ','))
return 1;
q = strchr(q, ',');
q += !!q;
}
p = strchr(p, ',');
p += !!p;
}
return 0;
}