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-rw-r--r--libavfilter/af_pan.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/libavfilter/af_pan.c b/libavfilter/af_pan.c
index 922025ab88..77ca549167 100644
--- a/libavfilter/af_pan.c
+++ b/libavfilter/af_pan.c
@@ -364,6 +364,7 @@ static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *insamples)
swr_convert(pan->swr, outsamples->data, n, (void *)insamples->data, n);
avfilter_copy_buffer_ref_props(outsamples, insamples);
outsamples->audio->channel_layout = outlink->channel_layout;
+ outsamples->audio->channels = outlink->channels;
ret = ff_filter_frame(outlink, outsamples);
avfilter_unref_buffer(insamples);