apedec: convert to new channel layout API

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: James Almer <jamrial@gmail.com>

libavcodec/apedec.c

@@ -233,13 +233,14 @@ static av_cold int ape_decode_close(AVCodecContext *avctx)
 static av_cold int ape_decode_init(AVCodecContext *avctx)
 {
     APEContext *s = avctx->priv_data;
+    int channels = avctx->ch_layout.nb_channels;
     int i;
 
     if (avctx->extradata_size != 6) {
         av_log(avctx, AV_LOG_ERROR, "Incorrect extradata\n");
         return AVERROR(EINVAL);
     }
-    if (avctx->channels > 2) {
+    if (channels > 2) {
         av_log(avctx, AV_LOG_ERROR, "Only mono and stereo is supported\n");
         return AVERROR(EINVAL);
     }
@@ -261,7 +262,7 @@ static av_cold int ape_decode_init(AVCodecContext *avctx)
         return AVERROR_PATCHWELCOME;
     }
     s->avctx             = avctx;
-    s->channels          = avctx->channels;
+    s->channels          = channels;
     s->fileversion       = AV_RL16(avctx->extradata);
     s->compression_level = AV_RL16(avctx->extradata + 2);
     s->flags             = AV_RL16(avctx->extradata + 4);
@@ -313,7 +314,9 @@ static av_cold int ape_decode_init(AVCodecContext *avctx)
 
     ff_bswapdsp_init(&s->bdsp);
     ff_llauddsp_init(&s->adsp);
-    avctx->channel_layout = (avctx->channels==2) ? AV_CH_LAYOUT_STEREO : AV_CH_LAYOUT_MONO;
+    av_channel_layout_uninit(&avctx->ch_layout);
+    avctx->ch_layout = (channels == 2) ? (AVChannelLayout)AV_CHANNEL_LAYOUT_STEREO
+                                       : (AVChannelLayout)AV_CHANNEL_LAYOUT_MONO;
 
     return 0;
 }