From a6a9207c4298081d2af237edd04e337e5d175e0d Mon Sep 17 00:00:00 2001
From: Wim Taymans <wim.taymans@gmail.com>
Date: Wed, 24 Jan 2007 16:25:55 +0000
Subject: [PATCH] gst/rtsp/gstrtspsrc.*: Only unblock the udp pads when we
 linked and activated them all.

Original commit message from CVS:
* gst/rtsp/gstrtspsrc.c: (pad_blocked),
(gst_rtspsrc_stream_configure_transport),
(gst_rtspsrc_activate_streams), (gst_rtspsrc_loop_udp):
* gst/rtsp/gstrtspsrc.h:
Only unblock the udp pads when we linked and activated them all.
Fixes #395688.
---
 ChangeLog             |  9 +++++++++
 gst/rtsp/gstrtspsrc.c | 30 +++++++++++++++++++++---------
 gst/rtsp/gstrtspsrc.h |  1 +
 3 files changed, 31 insertions(+), 9 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 85f0d46..fc27e6f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,14 @@
 2007-01-24  Wim Taymans  <wim@fluendo.com>
 
+	* gst/rtsp/gstrtspsrc.c: (pad_blocked),
+	(gst_rtspsrc_stream_configure_transport),
+	(gst_rtspsrc_activate_streams), (gst_rtspsrc_loop_udp):
+	* gst/rtsp/gstrtspsrc.h:
+	Only unblock the udp pads when we linked and activated them all.
+	Fixes #395688.
+
+2007-01-24  Wim Taymans  <wim@fluendo.com>
+
 	* gst/rtp/Makefile.am:
 	* gst/rtp/gstrtp.c: (plugin_init):
 	* gst/rtp/gstrtpac3depay.c: (gst_rtp_ac3_depay_base_init),
diff --git a/gst/rtsp/gstrtspsrc.c b/gst/rtsp/gstrtspsrc.c
index b56265c..44d1b05 100644
--- a/gst/rtsp/gstrtspsrc.c
+++ b/gst/rtsp/gstrtspsrc.c
@@ -860,17 +860,12 @@ pad_blocked (GstPad * pad, gboolean blocked, GstRTSPSrc * src)
 
   gst_rtspsrc_activate_streams (src);
 
-unblock:
-  /* now unblock and let it stream */
-  gst_pad_set_blocked_async (pad, FALSE, (GstPadBlockCallback) pad_unblocked,
-      src);
-
   return;
 
 was_ok:
   {
     GST_OBJECT_UNLOCK (src);
-    goto unblock;
+    return;
   }
 }
 
@@ -994,7 +989,7 @@ gst_rtspsrc_stream_configure_transport (GstRTSPStream * stream,
         gst_object_sink (stream->udpsrc[0]);
 
         /* change state */
-        gst_element_set_state (stream->udpsrc[0], GST_STATE_PAUSED);
+        gst_element_set_state (stream->udpsrc[0], GST_STATE_READY);
       }
 
       /* creating another UDP source */
@@ -1010,7 +1005,7 @@ gst_rtspsrc_stream_configure_transport (GstRTSPStream * stream,
         gst_object_ref (stream->udpsrc[0]);
         gst_object_sink (stream->udpsrc[0]);
 
-        gst_element_set_state (stream->udpsrc[1], GST_STATE_PAUSED);
+        gst_element_set_state (stream->udpsrc[1], GST_STATE_READY);
       }
     }
 
@@ -1033,6 +1028,9 @@ gst_rtspsrc_stream_configure_transport (GstRTSPStream * stream,
       /* get output pad of the UDP source. */
       outpad = gst_element_get_pad (stream->udpsrc[0], "src");
 
+      /* save it so we can unblock */
+      stream->blockedpad = outpad;
+
       /* configure pad block on the pad. As soon as there is dataflow on the
        * UDP source, we know that UDP is not blocked by a firewall and we can
        * configure all the streams to let the application autoplug decoders. */
@@ -1139,6 +1137,17 @@ gst_rtspsrc_activate_streams (GstRTSPSrc * src)
    * we are done */
   gst_element_no_more_pads (GST_ELEMENT_CAST (src));
 
+  /* unblock all pads */
+  for (walk = src->streams; walk; walk = g_list_next (walk)) {
+    GstRTSPStream *stream = (GstRTSPStream *) walk->data;
+
+    if (stream->blockedpad) {
+      gst_pad_set_blocked_async (stream->blockedpad, FALSE,
+          (GstPadBlockCallback) pad_unblocked, src);
+      stream->blockedpad = NULL;
+    }
+  }
+
   return TRUE;
 }
 
@@ -1388,7 +1397,10 @@ gst_rtspsrc_loop_udp (GstRTSPSrc * src)
   if (src->loop_cmd == CMD_RECONNECT) {
     /* FIXME, when we get here we have to reconnect using tcp */
     src->loop_cmd = CMD_WAIT;
-    restart = TRUE;
+
+    /* only restart when the pads were not yet activated, else we were
+     * streaming over UDP */
+    restart = src->need_activate;
   }
   GST_OBJECT_UNLOCK (src);
 
diff --git a/gst/rtsp/gstrtspsrc.h b/gst/rtsp/gstrtspsrc.h
index fa030b4..8f42895 100644
--- a/gst/rtsp/gstrtspsrc.h
+++ b/gst/rtsp/gstrtspsrc.h
@@ -92,6 +92,7 @@ struct _GstRTSPStream {
 
   /* our udp sources */
   GstElement   *udpsrc[2];
+  GstPad       *blockedpad;
 
   /* our udp sink back to the server */
   GstElement   *udpsink;
-- 
2.7.4