From 125f7dfdb058888a4f2ba0e837259be1e1a2ff2b Mon Sep 17 00:00:00 2001
From: Thiago Santos <thiago.sousa.santos@collabora.co.uk>
Date: Mon, 18 Jan 2010 15:22:52 -0300
Subject: [PATCH] oggdemux: granulepos is relative to its chain

When performing seeks, the granulepos should be offset by
its chain start time to avoid using wrong values to
update segment's last_stop. A sample file is indicated on
bug #606382
---
 ext/ogg/gstoggdemux.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/ext/ogg/gstoggdemux.c b/ext/ogg/gstoggdemux.c
index b6e78b69b5..1540af2068 100644
--- a/ext/ogg/gstoggdemux.c
+++ b/ext/ogg/gstoggdemux.c
@@ -1901,8 +1901,11 @@ gst_ogg_demux_do_seek (GstOggDemux * ogg, GstSegment * segment,
         pad->map.serialno, GST_TIME_ARGS (keyframe_time));
 
     /* collect smallest value */
-    if (keyframe_time != -1 && keyframe_time < keytarget)
-      keytarget = keyframe_time;
+    if (keyframe_time != -1) {
+      keyframe_time += begintime;
+      if (keyframe_time < keytarget)
+        keytarget = keyframe_time;
+    }
 
   next:
     pending--;