From 06764fcd3f6c738075cf52f8858a157cf8a350b9 Mon Sep 17 00:00:00 2001
From: Vincent Penquerc'h <vincent.penquerch@collabora.co.uk>
Date: Wed, 14 Sep 2011 19:09:30 +0100
Subject: [PATCH] celtenc: do not use invalid buffer timestamps

https://bugzilla.gnome.org/show_bug.cgi?id=659087
---
 ext/celt/gstceltenc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ext/celt/gstceltenc.c b/ext/celt/gstceltenc.c
index 5579bef17a..e602e09f06 100644
--- a/ext/celt/gstceltenc.c
+++ b/ext/celt/gstceltenc.c
@@ -970,6 +970,7 @@ gst_celt_enc_chain (GstPad * pad, GstBuffer * buf)
   /* Check if we have a continous stream, if not drop some samples or the buffer or
    * insert some silence samples */
   if (enc->next_ts != GST_CLOCK_TIME_NONE &&
+      GST_BUFFER_TIMESTAMP_IS_VALID (buf) &&
       GST_BUFFER_TIMESTAMP (buf) < enc->next_ts) {
     guint64 diff = enc->next_ts - GST_BUFFER_TIMESTAMP (buf);
     guint64 diff_bytes;