From 7b12afa4cbc89a24a7b1b253a89a02fc2b2bbd9f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian.droege@collabora.co.uk>
Date: Wed, 24 Oct 2012 09:57:23 +0200
Subject: [PATCH] streamsynchronizer: Create a GAP event with a sensible
 timestamp

---
 gst/playback/gststreamsynchronizer.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/gst/playback/gststreamsynchronizer.c b/gst/playback/gststreamsynchronizer.c
index 7ece3d6e89..3692f6d78c 100644
--- a/gst/playback/gststreamsynchronizer.c
+++ b/gst/playback/gststreamsynchronizer.c
@@ -402,6 +402,7 @@ gst_stream_synchronizer_sink_event (GstPad * pad, GstObject * parent,
       gboolean seen_data;
       GSList *pads = NULL;
       GstPad *srcpad;
+      GstClockTime timestamp;
 
       GST_STREAM_SYNCHRONIZER_LOCK (self);
       stream = gst_pad_get_element_private (pad);
@@ -417,6 +418,11 @@ gst_stream_synchronizer_sink_event (GstPad * pad, GstObject * parent,
       seen_data = stream->seen_data;
       srcpad = gst_object_ref (stream->srcpad);
 
+      if (stream->segment.rate < 0.0 || stream->segment.stop == -1)
+        timestamp = stream->segment.start;
+      else
+        timestamp = stream->segment.stop;
+
       for (l = self->streams; l; l = l->next) {
         GstStream *ostream = l->data;
 
@@ -456,10 +462,11 @@ gst_stream_synchronizer_sink_event (GstPad * pad, GstObject * parent,
         if (!seen_data) {
           GstEvent *gap_event;
 
-          gap_event = gst_event_new_gap (0, 0);
+          gap_event = gst_event_new_gap (timestamp, GST_CLOCK_TIME_NONE);
           ret = gst_pad_push_event (srcpad, gap_event);
+        } else {
+          ret = TRUE;
         }
-        ret = TRUE;
       }
       gst_object_unref (srcpad);
       gst_event_unref (event);