wv: convert to new channel layout API

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>

libavformat/wvdec.c

@@ -256,8 +256,7 @@ static int wv_read_header(AVFormatContext *s)
     AV_WL16(st->codecpar->extradata, wc->header.version);
     st->codecpar->codec_type            = AVMEDIA_TYPE_AUDIO;
     st->codecpar->codec_id              = AV_CODEC_ID_WAVPACK;
-    st->codecpar->channels              = wc->chan;
-    st->codecpar->channel_layout        = wc->chmask;
+    av_channel_layout_from_mask(&st->codecpar->ch_layout, wc->chmask);
     st->codecpar->sample_rate           = wc->rate;
     st->codecpar->bits_per_coded_sample = wc->bpp;
     avpriv_set_pts_info(st, 64, 1, wc->rate);