From 9d0e2e7252398c660c33c79256333f76a6d97dd0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian.droege@collabora.co.uk>
Date: Thu, 8 Jul 2010 07:48:07 +0200
Subject: [PATCH] pipeline: If the currently used clock gets lost update it the
 next time when going from PAUSED to playing

Fixes bug #623806.
---
 gst/gstpipeline.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/gst/gstpipeline.c b/gst/gstpipeline.c
index 73c8f99169..8f5d381b1d 100644
--- a/gst/gstpipeline.c
+++ b/gst/gstpipeline.c
@@ -401,7 +401,7 @@ gst_pipeline_change_state (GstElement * element, GstStateChange transition)
 
       /* running time changed, either with a PAUSED or a flush, we need to check
        * if there is a new clock & update the base time */
-      if (last_start_time != start_time) {
+      if (update_clock || last_start_time != start_time) {
         GST_DEBUG_OBJECT (pipeline, "Need to update start_time");
 
         /* when going to PLAYING, select a clock when needed. If we just got
@@ -560,6 +560,20 @@ gst_pipeline_handle_message (GstBin * bin, GstMessage * message)
 
       break;
     }
+    case GST_MESSAGE_CLOCK_LOST:
+    {
+      GstClock *clock;
+
+      gst_message_parse_clock_lost (message, &clock);
+
+      GST_OBJECT_LOCK (bin);
+      if (clock == GST_ELEMENT_CAST (bin)->clock) {
+        GST_DEBUG_OBJECT (bin, "Used clock '%s' got lost",
+            GST_OBJECT_NAME (clock));
+        pipeline->priv->update_clock = TRUE;
+      }
+      GST_OBJECT_UNLOCK (bin);
+    }
     default:
       break;
   }