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-rw-r--r--libavfilter/af_acopy.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/libavfilter/af_acopy.c b/libavfilter/af_acopy.c
index 32455d9186..1591ec9639 100644
--- a/libavfilter/af_acopy.c
+++ b/libavfilter/af_acopy.c
@@ -63,6 +63,7 @@ static const AVFilterPad acopy_outputs[] = {
const AVFilter ff_af_acopy = {
.name = "acopy",
.description = NULL_IF_CONFIG_SMALL("Copy the input audio unchanged to the output."),
+ .flags = AVFILTER_FLAG_METADATA_ONLY,
FILTER_INPUTS(acopy_inputs),
FILTER_OUTPUTS(acopy_outputs),
};