@@ -583,6 +583,7 @@ static void *filter_child_next(void *obj, void *prev)
return NULL;
}
+#if FF_API_CHILD_CLASS_NEXT
static const AVClass *filter_child_class_next(const AVClass *prev)
{
void *opaque = NULL;
@@ -604,6 +605,18 @@ static const AVClass *filter_child_class_next(const AVClass *prev)
return NULL;
}
+#endif
+
+static const AVClass *filter_child_class_iterate(void **iter)
+{
+ const AVFilter *f;
+
+ while ((f = av_filter_iterate(iter)))
+ if (f->priv_class)
+ return f->priv_class;
+
+ return NULL;
+}
#define OFFSET(x) offsetof(AVFilterContext, x)
#define FLAGS AV_OPT_FLAG_FILTERING_PARAM
@@ -625,7 +638,10 @@ static const AVClass avfilter_class = {
.version = LIBAVUTIL_VERSION_INT,
.category = AV_CLASS_CATEGORY_FILTER,
.child_next = filter_child_next,
+#if FF_API_CHILD_CLASS_NEXT
.child_class_next = filter_child_class_next,
+#endif
+ .child_class_iterate = filter_child_class_iterate,
.option = avfilter_options,
};