From fe63255c4ecb802526f561615f27379f35780a0a Mon Sep 17 00:00:00 2001
From: Mark Nauwelaerts <mnauw@users.sourceforge.net>
Date: Sat, 2 Nov 2013 15:38:13 +0100
Subject: [PATCH] baseparse: try first frame pts and dts for a valid start
 timestamp

---
 libs/gst/base/gstbaseparse.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libs/gst/base/gstbaseparse.c b/libs/gst/base/gstbaseparse.c
index b1fe677b3a..19034f8d23 100644
--- a/libs/gst/base/gstbaseparse.c
+++ b/libs/gst/base/gstbaseparse.c
@@ -3885,6 +3885,9 @@ gst_base_parse_locate_time (GstBaseParse * parse, GstClockTime * _time,
   /* need initial positions; start and end */
   lpos = parse->priv->first_frame_offset;
   ltime = parse->priv->first_frame_pts;
+  /* try other one if no luck */
+  if (!GST_CLOCK_TIME_IS_VALID (ltime))
+    ltime = parse->priv->first_frame_dts;
   if (!gst_base_parse_get_duration (parse, GST_FORMAT_TIME, &htime)) {
     GST_DEBUG_OBJECT (parse, "Unknown time duration, cannot bisect");
     return GST_FLOW_ERROR;