diff --git a/libavfilter/af_join.c b/libavfilter/af_join.c index 8dffda0a31..ac3b76ca9d 100644 --- a/libavfilter/af_join.c +++ b/libavfilter/af_join.c @@ -476,6 +476,8 @@ static int join_request_frame(AVFilterLink *outlink) frame->nb_samples = nb_samples; frame->channel_layout = outlink->channel_layout; + av_frame_set_channels(frame, outlink->channels); + frame->format = outlink->format; frame->sample_rate = outlink->sample_rate; frame->pts = s->input_frames[0]->pts; frame->linesize[0] = linesize;