Make sure the Gdk thread lock is not held inside the gstreamer pipeline.

Original commit message from CVS:
Make sure the Gdk thread lock is not held inside the gstreamer pipeline.
Fix the videosink to not hold the Gdk lock when emitting a signal.
All Gtk GUI apps using GStreamer should now handle the Gdk locks when
handling signals from the pipeline (as it should be)

gst/gst.c

@@ -65,9 +65,7 @@ void gst_init(int *argc,char **argv[]) {
  * Enter the main GStreamer processing loop 
  */
 void gst_main() {
-  gdk_threads_enter();
   gtk_main();
-  gdk_threads_leave();
 }
 
 /**

gstplay/gstmediaplay.c

@@ -271,6 +271,8 @@ gst_media_play_state_changed (GstPlay *play,
   g_return_if_fail (GST_IS_PLAY (play));
   g_return_if_fail (GST_IS_MEDIA_PLAY (mplay));
 
+
+  gdk_threads_enter ();
   update_buttons (mplay, state);
 
   switch (state) {
@@ -287,6 +289,7 @@ gst_media_play_state_changed (GstPlay *play,
       area_state =  GST_STATUS_AREA_STATE_INIT;
   }
   gst_status_area_set_state (mplay->status, area_state);
+  gdk_threads_leave ();
 }
 
 void 
@@ -324,9 +327,11 @@ gst_media_play_frame_displayed (GstPlay *play,
   current_offset = gst_play_get_media_offset (play);
 
   if (current_time != mplay->last_time) {
+    gdk_threads_enter ();
     gst_media_play_update_status_area (mplay, current_time, total_time);
     update_slider (mplay, mplay->adjustment, current_offset*100.0/size);
     mplay->last_time = current_time;
+    gdk_threads_leave ();
   }
 }
 
@@ -347,7 +352,9 @@ void
 on_toggle_play_toggled (GtkToggleButton *togglebutton,
                         GstMediaPlay    *play)
 {
+  gdk_threads_leave ();
   gst_play_play (play->play);
+  gdk_threads_enter ();
   update_buttons (play, GST_PLAY_STATE(play->play));
 }
 
@@ -355,7 +362,9 @@ void
 on_toggle_pause_toggled (GtkToggleButton *togglebutton,
                          GstMediaPlay    *play)
 {
+  gdk_threads_leave ();
   gst_play_pause (play->play);
+  gdk_threads_enter ();
   update_buttons (play, GST_PLAY_STATE(play->play));
 }
 
@@ -363,7 +372,9 @@ void
 on_toggle_stop_toggled (GtkToggleButton *togglebutton,
                         GstMediaPlay    *play)
 {
+  gdk_threads_leave ();
   gst_play_stop (play->play);
+  gdk_threads_enter ();
   update_buttons (play, GST_PLAY_STATE(play->play));
 }
 

gstplay/main.c

@@ -4,30 +4,27 @@
  */
 
 #include <config.h>
-
-//#define DEBUG_ENABLED
-
 #include <gnome.h>
-#include <glade/glade.h>
 
 #include "gstmediaplay.h"
 
-
 int
 main (int argc, char *argv[])
 {
   GstMediaPlay *play;
 
-  gst_init(&argc,&argv);
+  gst_init (&argc,&argv);
   gnome_init ("gstreamer", VERSION, argc, argv);
 
-  play = gst_media_play_new();
+  play = gst_media_play_new ();
 
   if (argc > 1) {
-    gst_media_play_start_uri(play, argv[1]);
+    gst_media_play_start_uri (play, argv[1]);
   }
 
-  gst_main();
+  gdk_threads_enter ();
+  gst_main ();
+  gdk_threads_leave ();
 
   return 0;
 }