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avutil/opt: preserve fractions in set_string_number()

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This avoids going over a double precission float, which may loose precission

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-02-18 21:43:57 +01:00
parent 3e70c7023e
commit 8f853159f6
2 changed files with 10 additions and 1 deletions
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9
libavutil/opt.c
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@ -195,6 +195,15 @@ static int set_string(void *obj, const AVOption *o, const char *val, uint8_t **d
static int set_string_number(void *obj, void *target_obj, const AVOption *o, const char *val, void *dst)
{
int ret = 0, notfirst = 0;
int num, den;
char c;
if (sscanf(val, "%d%*1[:/]%d%c", &num, &den, &c) == 2) {
if ((ret = write_number(obj, o, dst, 1, den, num)) >= 0)
return ret;
ret = 0;
}
for (;;) {
int i, den = 1;
char buf[256];

2
tests/ref/fate/zmbv-8bit
View File

@ -1,4 +1,4 @@
#tb 0: 15967/1119068
#tb 0: 1000000/70086303
0, 0, 0, 1, 192000, 0x5234b617
0, 1, 1, 1, 192000, 0x5234b617
0, 2, 2, 1, 192000, 0x5234b617