smjpegenc: convert to new channel layout API

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

libavformat/smjpegdec.c

@@ -94,7 +94,7 @@ static int smjpeg_read_header(AVFormatContext *s)
             ast->codecpar->codec_type  = AVMEDIA_TYPE_AUDIO;
             ast->codecpar->sample_rate = avio_rb16(pb);
             ast->codecpar->bits_per_coded_sample = avio_r8(pb);
-            ast->codecpar->channels    = avio_r8(pb);
+            ast->codecpar->ch_layout.nb_channels = avio_r8(pb);
             ast->codecpar->codec_tag   = avio_rl32(pb);
             ast->codecpar->codec_id    = ff_codec_get_id(ff_codec_smjpeg_audio_tags,
                                                          ast->codecpar->codec_tag);

libavformat/smjpegenc.c

@@ -68,7 +68,7 @@ static int smjpeg_write_header(AVFormatContext *s)
             avio_wb32(pb, 8);
             avio_wb16(pb, par->sample_rate);
             avio_w8(pb, par->bits_per_coded_sample);
-            avio_w8(pb, par->channels);
+            avio_w8(pb, par->ch_layout.nb_channels);
             avio_wl32(pb, tag);
             avpriv_set_pts_info(st, 32, 1, 1000);
         } else if (par->codec_type == AVMEDIA_TYPE_VIDEO) {