--- /dev/null
+diff --git a/gst/flv/gstflvdemux.c b/gst/flv/gstflvdemux.c
+index 203cb76..a8d4005 100644
+--- a/gst/flv/gstflvdemux.c
++++ b/gst/flv/gstflvdemux.c
+@@ -694,6 +694,9 @@ gst_flv_demux_audio_negotiate (GstFlvDemux * demux, guint32 codec_tag,
+ caps = gst_caps_new_simple ("audio/mpeg",
+ "mpegversion", G_TYPE_INT, 4, "framed", G_TYPE_BOOLEAN, TRUE,
+ "stream-format", G_TYPE_STRING, "raw", NULL);
++ if (demux->audio_codec_data &&
++ GST_BUFFER_SIZE (demux->audio_codec_data) >= 2)
++ gst_codec_utils_aac_caps_set_level_and_profile (caps, GST_BUFFER_DATA (demux->audio_codec_data), GST_BUFFER_SIZE (demux->audio_codec_data));
+ break;
+ }
+ case 7: