audio_desc =
g_strdup_printf
("audiotestsrc is-live=true wave=red-noise ! audioconvert ! audioresample"
- "! queue ! opusenc ! rtpopuspay name=audiopay pt=%u ! queue", opus_pt);
+ "! queue ! opusenc ! rtpopuspay name=audiopay pt=%u "
+ "! application/x-rtp, encoding-name=OPUS ! queue", opus_pt);
audio_bin = gst_parse_bin_from_description (audio_desc, TRUE, &audio_error);
g_free (audio_desc);
if (audio_error) {