avfilter: don't av_malloc(0).

14 years ago · f8af93ab99
parent 25588d3b8a
commit f8af93ab99
1 changed files with 2 additions and 1 deletions
--- a/libavfilter/avfilter.c
+++ b/libavfilter/avfilter.c
@ -587,7 +587,8 @@ int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *in
    ret->av_class = &avfilter_class;
    ret->filter   = filter;
    ret->name     = inst_name ? av_strdup(inst_name) : NULL;
-    ret->priv     = av_mallocz(filter->priv_size);
+    if (filter->priv_size)
+        ret->priv     = av_mallocz(filter->priv_size);

    ret->input_count  = pad_count(filter->inputs);
    if (ret->input_count) {