avfilter: avoid direct access to AVFrame.channels

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 1 insertions, 1 deletions

diff --git a/libavfilter/af_amerge.c b/libavfilter/af_amerge.c
index b26141d14f..28c368215f 100644
--- a/libavfilter/af_amerge.c
+++ b/libavfilter/af_amerge.c
@@ -263,7 +263,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
 
     outbuf->nb_samples     = nb_samples;
     outbuf->channel_layout = outlink->channel_layout;
-    outbuf->channels       = outlink->channels;
+    av_frame_set_channels(outbuf, outlink->channels);
 
     while (nb_samples) {
         ns = nb_samples;