From 7e4574e9684f17f0071e267327c854e8610893f9 Mon Sep 17 00:00:00 2001
From: Vincent Penquerc'h <vincent.penquerch@collabora.co.uk>
Date: Mon, 19 Sep 2011 09:37:58 +0200
Subject: [PATCH] speexenc: do not use invalid buffer timestamps

---
 ext/speex/gstspeexenc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ext/speex/gstspeexenc.c b/ext/speex/gstspeexenc.c
index 6ace2da124..98fb2bbc7a 100644
--- a/ext/speex/gstspeexenc.c
+++ b/ext/speex/gstspeexenc.c
@@ -1050,6 +1050,7 @@ gst_speex_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;