From 749765b9211d1a97e73af5924ceafb8d400246b9 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Sebastian=20P=C3=B6lsterl?= <sebp@k-d-w.org>
Date: Fri, 12 Jun 2009 18:05:30 +0200
Subject: [PATCH] Added vmethod unprepare  to GstRTSPMedia

The default implementation sets the state of the pipeline to GST_STATE_NULL
---
 gst/rtsp-server/rtsp-media.c | 18 +++++++++++++++++-
 gst/rtsp-server/rtsp-media.h |  3 +++
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/gst/rtsp-server/rtsp-media.c b/gst/rtsp-server/rtsp-media.c
index cbd4e8b..fdf4a7b 100644
--- a/gst/rtsp-server/rtsp-media.c
+++ b/gst/rtsp-server/rtsp-media.c
@@ -54,6 +54,7 @@ static void gst_rtsp_media_finalize (GObject * obj);
 
 static gpointer do_loop (GstRTSPMediaClass *klass);
 static gboolean default_handle_message (GstRTSPMedia *media, GstMessage *message);
+static gboolean default_unprepare (GstRTSPMedia *media);
 static void unlock_streams (GstRTSPMedia *media);
 
 static guint gst_rtsp_media_signals[SIGNAL_LAST] = { 0 };
@@ -94,6 +95,7 @@ gst_rtsp_media_class_init (GstRTSPMediaClass * klass)
     g_critical ("could not start bus thread: %s", error->message);
   }
   klass->handle_message = default_handle_message;
+  klass->unprepare = default_unprepare;
 
   ssrc_stream_map_key = g_quark_from_static_string ("GstRTSPServer.stream");
 }
@@ -1373,12 +1375,20 @@ is_reused:
 gboolean
 gst_rtsp_media_unprepare (GstRTSPMedia *media)
 {
+  GstRTSPMediaClass *klass;
+  gboolean success;
+
   if (!media->prepared)
     return TRUE;
 
   g_message ("unprepare media %p", media);
   media->target_state = GST_STATE_NULL;
-  gst_element_set_state (media->pipeline, GST_STATE_NULL);
+
+  klass = GST_RTSP_MEDIA_GET_CLASS (media);
+  if (klass->unprepare)
+    success = klass->unprepare (media);
+  else
+    success = TRUE;
 
   media->prepared = FALSE;
   media->reused = TRUE;
@@ -1387,6 +1397,12 @@ gst_rtsp_media_unprepare (GstRTSPMedia *media)
    * recreate it */
   g_signal_emit (media, gst_rtsp_media_signals[SIGNAL_UNPREPARED], 0, NULL);
 
+  return success;
+}
+
+static gboolean
+default_unprepare (GstRTSPMedia *media) {
+  gst_element_set_state (media->pipeline, GST_STATE_NULL);
   return TRUE;
 }
 
diff --git a/gst/rtsp-server/rtsp-media.h b/gst/rtsp-server/rtsp-media.h
index eb513e3..b8b7b19 100644
--- a/gst/rtsp-server/rtsp-media.h
+++ b/gst/rtsp-server/rtsp-media.h
@@ -196,6 +196,8 @@ struct _GstRTSPMedia {
  * @loop: the mainloop for message.
  * @thread: the thread dispatching messages.
  * @handle_message: handle a message
+ * @unprepare: the default implementation sets the pipeline's state
+ *             to GST_STATE_NULL.
  *
  * The RTSP media class
  */
@@ -209,6 +211,7 @@ struct _GstRTSPMediaClass {
 
   /* vmethods */
   gboolean     (*handle_message)  (GstRTSPMedia *media, GstMessage *message);
+  gboolean     (*unprepare)       (GstRTSPMedia *media);
 
   /* signals */
   gboolean     (*unprepared)      (GstRTSPMedia *media);
-- 
2.7.4