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-rw-r--r--libavfilter/avfilter.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavfilter/avfilter.c b/libavfilter/avfilter.c
index 8f028e1122..e2062a1643 100644
--- a/libavfilter/avfilter.c
+++ b/libavfilter/avfilter.c
@@ -555,7 +555,7 @@ int avfilter_init_str(AVFilterContext *filter, const char *args)
#if FF_API_OLD_FILTER_OPTS
if (!strcmp(filter->filter->name, "scale") &&
- strchr(args, ':') < strchr(args, '=')) {
+ strchr(args, ':') && strchr(args, ':') < strchr(args, '=')) {
/* old w:h:flags=<flags> syntax */
char *copy = av_strdup(args);
char *p;