lavfi: do not segfault on NULL passed to avfilter_get_by_name()

2013-04-07 07:33:24 +02:00 · 2013-04-07 07:33:24 +02:00 · f160c6a18a
parent fa2a34cd40
commit f160c6a18a
1 changed files with 3 additions and 0 deletions
--- a/libavfilter/avfilter.c
+++ b/libavfilter/avfilter.c
@ -273,6 +273,9 @@ AVFilter *avfilter_get_by_name(const char *name)
 {
    AVFilter *f = NULL;

+    if (!name)
+        return NULL;
+
    while ((f = avfilter_next(f)))
        if (!strcmp(f->name, name))
            return f;