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lavu/opt: do not filter out the initial sign character except for flags 

This allows parsing of special-case negative numbers like decibels.
This commit is contained in:
Justin Ruggles 2012-09-29 00:34:28 -04:00
parent 5312268b34
commit 9d5c62ba5b
1 changed files with 8 additions and 3 deletions
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11
libavutil/opt.c
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@ -154,10 +154,15 @@ static int set_string_number(void *obj, const AVOption *o, const char *val, void
double d, num = 1;
int64_t intnum = 1;
if (*val == '+' || *val == '-')
cmd = *(val++);
i = 0;
if (*val == '+' || *val == '-') {
if (o->type == AV_OPT_TYPE_FLAGS)
cmd = *(val++);
else if (!notfirst)
buf[i++] = *val;
}
for (i = 0; i < sizeof(buf) - 1 && val[i] && val[i] != '+' && val[i] != '-'; i++)
for (; i < sizeof(buf) - 1 && val[i] && val[i] != '+' && val[i] != '-'; i++)
buf[i] = val[i];
buf[i] = 0;