diff --git a/ChangeLog b/ChangeLog
index e04a4f4967..1a3ebae675 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2007-09-21  Wim Taymans  <wim.taymans@gmail.com>
+
+	* gst/rtp/gstrtpamrdepay.c: (gst_rtp_amr_depay_process):
+	Set outgoing packet duration because we can. Fixes #478244 some more.
+
 2007-09-20  Stefan Kost  <ensonic@users.sf.net>
 
 	* ext/cairo/gsttextoverlay.c:
diff --git a/gst/rtp/gstrtpamrdepay.c b/gst/rtp/gstrtpamrdepay.c
index 6daad65920..1694b168cb 100644
--- a/gst/rtp/gstrtpamrdepay.c
+++ b/gst/rtp/gstrtpamrdepay.c
@@ -409,6 +409,9 @@ gst_rtp_amr_depay_process (GstBaseRTPDepayload * depayload, GstBuffer * buf)
         dp += fr_size;
       }
     }
+    /* we can set the duration because each packet is 20 milliseconds */
+    GST_BUFFER_DURATION (outbuf) = num_packets * 20 * GST_MSECOND;
+
     gst_buffer_set_caps (outbuf,
         GST_PAD_CAPS (GST_BASE_RTP_DEPAYLOAD_SRCPAD (depayload)));