diff --git a/src/plumbing/transcoding.c b/src/plumbing/transcoding.c
index 4c024d6..d7ad28a 100644
--- a/src/plumbing/transcoding.c
+++ b/src/plumbing/transcoding.c
@@ -492,15 +492,19 @@ transcoder_stream_audio(transcoder_t *t, transcoder_stream_t *ts, th_pkt_t *pkt)
   icodec = as->aud_icodec;
   ocodec = as->aud_ocodec;
 
+  tvhtrace("transcode", "audio in %ld", (long)pkt->pkt_dts);
+
   if (!avcodec_is_open(ictx)) {
     if (icodec->id == AV_CODEC_ID_AAC || icodec->id == AV_CODEC_ID_VORBIS) {
       if (pkt->pkt_meta) {
+        tvhtrace("transcode", "audio meta!!!");
         ictx->extradata_size = pktbuf_len(pkt->pkt_meta);
         ictx->extradata = av_malloc(ictx->extradata_size);
         memcpy(ictx->extradata,
                pktbuf_ptr(pkt->pkt_meta), pktbuf_len(pkt->pkt_meta));
       } else {
         /* wait for metadata */
+        tvhtrace("transcode", "audio meta wait");
         return;
       }
     }