---
libavfilter/af_aresample.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/libavfilter/af_aresample.c b/libavfilter/af_aresample.c
index ef10621c35..fb10bd1c33 100644
--- a/libavfilter/af_aresample.c
+++ b/libavfilter/af_aresample.c
@@ -293,10 +293,19 @@ static int request_frame(AVFilterLink *outlink)
return ret;
}
+#if FF_API_CHILD_CLASS_NEXT
static const AVClass *resample_child_class_next(const AVClass *prev)
{
return prev ? NULL : swr_get_class();
}
+#endif
+
+static const AVClass *resample_child_class_iterate(void **iter)
+{
+ const AVClass *c = *iter ? NULL : swr_get_class();
+ *iter = (void*)(uintptr_t)c;
+ return c;
+}
static void *resample_child_next(void *obj, void *prev)
{
@@ -317,7 +326,10 @@ static const AVClass aresample_class = {
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
+#if FF_API_CHILD_CLASS_NEXT
.child_class_next = resample_child_class_next,
+#endif
+ .child_class_iterate = resample_child_class_iterate,
.child_next = resample_child_next,
};
--
2.26.2
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