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-rw-r--r--libavutil/opt.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/libavutil/opt.c b/libavutil/opt.c
index b625756760..0eaa8b5afe 100644
--- a/libavutil/opt.c
+++ b/libavutil/opt.c
@@ -298,7 +298,7 @@ static int set_string_color(void *obj, const AVOption *o, const char *val, uint8
static int set_string_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst,
int fmt_nb, int ((*get_fmt)(const char *)), const char *desc)
{
- int fmt;
+ int fmt, min, max;
if (!val || !strcmp(val, "none")) {
fmt = -1;
@@ -315,6 +315,16 @@ static int set_string_fmt(void *obj, const AVOption *o, const char *val, uint8_t
}
}
+ min = FFMAX(o->min, -1);
+ max = FFMIN(o->max, fmt_nb-1);
+
+ if (fmt < min || fmt > max) {
+ av_log(obj, AV_LOG_ERROR,
+ "Value %d for parameter '%s' out of %s format range [%d - %d]\n",
+ fmt, o->name, desc, min, max);
+ return AVERROR(ERANGE);
+ }
+
*(int *)dst = fmt;
return 0;
}