diff --git a/libavformat/rsodec.c b/libavformat/rsodec.c
index ffd0fdff0d..569368b422 100644
--- a/libavformat/rsodec.c
+++ b/libavformat/rsodec.c
@@ -62,8 +62,7 @@ static int rso_read_header(AVFormatContext *s)
     st->codecpar->codec_type   = AVMEDIA_TYPE_AUDIO;
     st->codecpar->codec_tag    = id;
     st->codecpar->codec_id     = codec;
-    st->codecpar->channels     = 1;
-    st->codecpar->channel_layout = AV_CH_LAYOUT_MONO;
+    st->codecpar->ch_layout    = (AVChannelLayout)AV_CHANNEL_LAYOUT_MONO;
     st->codecpar->sample_rate  = rate;
     st->codecpar->block_align  = 1;
 
diff --git a/libavformat/rsoenc.c b/libavformat/rsoenc.c
index fc327d8a2f..858b53f6c6 100644
--- a/libavformat/rsoenc.c
+++ b/libavformat/rsoenc.c
@@ -34,7 +34,7 @@ static int rso_write_header(AVFormatContext *s)
     if (!par->codec_tag)
         return AVERROR_INVALIDDATA;
 
-    if (par->channels != 1) {
+    if (par->ch_layout.nb_channels != 1) {
         av_log(s, AV_LOG_ERROR, "RSO only supports mono\n");
         return AVERROR_INVALIDDATA;
     }