diff --git a/ChangeLog b/ChangeLog
index 53191c5c4e..40a84d33ef 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,27 @@
+2004-05-11  Benjamin Otte  <in7y118@public.uni-hamburg.de>
+
+	* gst/elements/gstfilesrc.c: (gst_filesrc_get_mmap):
+	  compute mapsize correctly
+	* gst/elements/gstfilesrc.c: (gst_filesrc_get_mmap):
+	  use correct datatypes when calling a varargs function
+	* gst/elements/gsttypefindelement.c: (stop_typefinding):
+	  push a DISCONT event as first thing
+	* gst/gst_private.h:
+	* gst/gstinfo.c: (_gst_debug_init):
+	  remove GST_DATAFLOW debugging category
+	* gst/gstbin.c: (gst_bin_iterate):
+	  use GST_SCHEDULING category
+	* gst/gstpad.c: (gst_pad_get_type), (_invent_event),
+	(gst_pad_push), (gst_pad_pull), (gst_pad_call_chain_function),
+	(gst_pad_call_get_function):
+	  add GST_DATAFLOW to easily track flow of buffers or events.
+	* gst/gstqueue.c: (gst_queue_get_type),
+	(gst_queue_handle_pending_events), (gst_queue_chain),
+	(gst_queue_get), (gst_queue_handle_src_event):
+	  use own static debugging category GST_DATAFLOW for dataflow,
+	  use DEBUG category for showing which path events go, use LOG
+	  category for buffers.
+
 2004-05-10  David Schleef  <ds@schleef.org>
 
 	* docs/gst/gstreamer-sections.txt: Add gst_element_no_more_pads.
diff --git a/gst/elements/gstfilesrc.c b/gst/elements/gstfilesrc.c
index ce0530b814..cb8321e64a 100644
--- a/gst/elements/gstfilesrc.c
+++ b/gst/elements/gstfilesrc.c
@@ -585,7 +585,7 @@ gst_filesrc_get_mmap (GstFileSrc * src)
       mapsize = src->mapsize;
 
       /* double the mapsize as long as the readsize is smaller */
-      while (readsize - (src->curoffset - nextmap) > mapsize) {
+      while (readsize + src->curoffset > nextmap + mapsize) {
         GST_LOG_OBJECT (src, "readsize smaller then mapsize %08x %d",
             readsize, (int) mapsize);
         mapsize <<= 1;
@@ -693,7 +693,7 @@ gst_filesrc_get (GstPad * pad)
     GST_DEBUG_OBJECT (src, "sending discont");
     event =
         gst_event_new_discontinuous (src->need_discont > 1, GST_FORMAT_BYTES,
-        src->curoffset, NULL);
+        (guint64) src->curoffset, GST_FORMAT_UNDEFINED);
     src->need_discont = 0;
     return GST_DATA (event);
   }
diff --git a/gst/elements/gsttypefindelement.c b/gst/elements/gsttypefindelement.c
index c4ca7df3e0..05d491d768 100644
--- a/gst/elements/gsttypefindelement.c
+++ b/gst/elements/gsttypefindelement.c
@@ -359,6 +359,9 @@ stop_typefinding (GstTypeFindElement * typefind)
       GST_WARNING_OBJECT (typefind,
           "could not seek to required position %u, hope for the best", size);
     }
+    gst_pad_push (typefind->src, GST_DATA (gst_event_new_discontinuous (TRUE,
+                GST_FORMAT_DEFAULT, (guint64) 0, GST_FORMAT_BYTES, (guint64) 0,
+                GST_FORMAT_UNDEFINED)));
     if (size
         && (buffer = gst_buffer_store_get_buffer (typefind->store, 0, size))) {
       GST_DEBUG_OBJECT (typefind, "pushing cached data (%u bytes)", size);
diff --git a/gst/gst_private.h b/gst/gst_private.h
index b84ea92d9c..a892bd9c53 100644
--- a/gst/gst_private.h
+++ b/gst/gst_private.h
@@ -54,7 +54,6 @@ extern GstDebugCategory *GST_CAT_PARENTAGE;
 extern GstDebugCategory *GST_CAT_STATES;
 extern GstDebugCategory *GST_CAT_PLANNING;
 extern GstDebugCategory *GST_CAT_SCHEDULING;
-extern GstDebugCategory *GST_CAT_DATAFLOW;
 extern GstDebugCategory *GST_CAT_BUFFER;
 extern GstDebugCategory *GST_CAT_CAPS;
 extern GstDebugCategory *GST_CAT_CLOCK;
diff --git a/gst/gstbin.c b/gst/gstbin.c
index bb9f2c1299..ae9488a418 100644
--- a/gst/gstbin.c
+++ b/gst/gstbin.c
@@ -1149,19 +1149,19 @@ gst_bin_iterate (GstBin * bin)
   g_return_val_if_fail (bin != NULL, FALSE);
   g_return_val_if_fail (GST_IS_BIN (bin), FALSE);
 
-  GST_CAT_LOG_OBJECT (GST_CAT_DATAFLOW, bin, "starting iteration");
+  GST_CAT_LOG_OBJECT (GST_CAT_SCHEDULING, bin, "starting iteration");
 
   gst_object_ref (GST_OBJECT (bin));
 
   running = FALSE;
   g_signal_emit (G_OBJECT (bin), gst_bin_signals[ITERATE], 0, &running);
 
-  GST_CAT_LOG_OBJECT (GST_CAT_DATAFLOW, bin, "finished iteration");
+  GST_CAT_LOG_OBJECT (GST_CAT_SCHEDULING, bin, "finished iteration");
 
   if (!running) {
     if (GST_STATE (bin) == GST_STATE_PLAYING &&
         GST_STATE_PENDING (bin) == GST_STATE_VOID_PENDING) {
-      GST_CAT_DEBUG (GST_CAT_DATAFLOW,
+      GST_CAT_DEBUG (GST_CAT_SCHEDULING,
           "[%s]: polling for child shutdown after useless iteration",
           GST_ELEMENT_NAME (bin));
       g_usleep (1);
diff --git a/gst/gstinfo.c b/gst/gstinfo.c
index f7b49e5fe9..86bf0f0f80 100644
--- a/gst/gstinfo.c
+++ b/gst/gstinfo.c
@@ -137,7 +137,6 @@ GstDebugCategory *GST_CAT_PARENTAGE = NULL;
 GstDebugCategory *GST_CAT_STATES = NULL;
 GstDebugCategory *GST_CAT_PLANNING = NULL;
 GstDebugCategory *GST_CAT_SCHEDULING = NULL;
-GstDebugCategory *GST_CAT_DATAFLOW = NULL;
 GstDebugCategory *GST_CAT_BUFFER = NULL;
 GstDebugCategory *GST_CAT_CAPS = NULL;
 GstDebugCategory *GST_CAT_CLOCK = NULL;
@@ -237,8 +236,6 @@ _gst_debug_init (void)
       GST_DEBUG_BOLD | GST_DEBUG_FG_MAGENTA, NULL);
   GST_CAT_SCHEDULING = _gst_debug_category_new ("GST_SCHEDULING",
       GST_DEBUG_BOLD | GST_DEBUG_FG_MAGENTA, NULL);
-  GST_CAT_DATAFLOW = _gst_debug_category_new ("GST_DATAFLOW",
-      GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN, NULL);
   GST_CAT_BUFFER = _gst_debug_category_new ("GST_BUFFER",
       GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN, NULL);
   GST_CAT_CAPS = _gst_debug_category_new ("GST_CAPS",
diff --git a/gst/gstpad.c b/gst/gstpad.c
index 46d9f05ebe..efb518c4e4 100644
--- a/gst/gstpad.c
+++ b/gst/gstpad.c
@@ -33,9 +33,18 @@
 #include "gsterror.h"
 #include "gstvalue.h"
 
+GST_DEBUG_CATEGORY_STATIC (debug_dataflow);
+#define DEBUG_DATA(obj,data,notice) G_STMT_START{\
+  if (GST_IS_EVENT (data)) { \
+    GST_CAT_DEBUG_OBJECT (debug_dataflow, obj, "%s event %p (type %d)", notice, data, \
+	GST_EVENT_TYPE (data)); \
+  } else { \
+    GST_CAT_LOG_OBJECT (debug_dataflow, obj, "%s buffer %p (size %d)", notice, data, \
+	GST_BUFFER_SIZE (data)); \
+  } \
+}G_STMT_END
 #define GST_CAT_DEFAULT GST_CAT_PADS
 
-
 struct _GstPadLink
 {
   GType type;
@@ -102,6 +111,9 @@ gst_pad_get_type (void)
 
     _gst_pad_type = g_type_register_static (GST_TYPE_OBJECT, "GstPad",
         &pad_info, 0);
+
+    GST_DEBUG_CATEGORY_INIT (debug_dataflow, "GST_DATAFLOW",
+        GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN, "dataflow inside pads");
   }
   return _gst_pad_type;
 }
@@ -3088,14 +3100,14 @@ _invent_event (GstPad * pad, GstBuffer * buffer)
 
     event = gst_event_new_discontinuous (TRUE,
         GST_FORMAT_TIME, timestamp, event_type, offset, GST_FORMAT_UNDEFINED);
-    GST_CAT_WARNING (GST_CAT_DATAFLOW,
+    GST_CAT_WARNING (GST_CAT_SCHEDULING,
         "needed to invent a DISCONT (time %" G_GUINT64_FORMAT
         ") for %s:%s => %s:%s", timestamp,
         GST_DEBUG_PAD_NAME (GST_PAD_PEER (pad)), GST_DEBUG_PAD_NAME (pad));
   } else {
     event = gst_event_new_discontinuous (TRUE,
         event_type, offset, GST_FORMAT_UNDEFINED);
-    GST_CAT_WARNING (GST_CAT_DATAFLOW,
+    GST_CAT_WARNING (GST_CAT_SCHEDULING,
         "needed to invent a DISCONT (no time) for %s:%s => %s:%s",
         GST_DEBUG_PAD_NAME (GST_PAD_PEER (pad)), GST_DEBUG_PAD_NAME (pad));
   }
@@ -3120,17 +3132,18 @@ gst_pad_push (GstPad * pad, GstData * data)
   g_return_if_fail (GST_PAD_DIRECTION (pad) == GST_PAD_SRC);
   g_return_if_fail (data != NULL);
 
+  DEBUG_DATA (pad, data, "gst_pad_push");
   if (!gst_probe_dispatcher_dispatch (&(GST_REAL_PAD (pad)->probedisp), &data))
     return;
 
   if (!GST_PAD_IS_LINKED (pad)) {
-    GST_CAT_LOG_OBJECT (GST_CAT_DATAFLOW, pad,
+    GST_CAT_LOG_OBJECT (GST_CAT_SCHEDULING, pad,
         "not pushing data %p as pad is unconnected", data);
     gst_data_unref (data);
     return;
   }
 
-  GST_CAT_LOG_OBJECT (GST_CAT_DATAFLOW, pad, "pushing");
+  GST_CAT_LOG_OBJECT (GST_CAT_SCHEDULING, pad, "pushing");
   peer = GST_RPAD_PEER (pad);
 
   if (!peer) {
@@ -3145,7 +3158,7 @@ gst_pad_push (GstPad * pad, GstData * data)
 
     if (peer->chainhandler) {
       if (data) {
-        GST_CAT_LOG_OBJECT (GST_CAT_DATAFLOW, pad,
+        GST_CAT_LOG_OBJECT (GST_CAT_SCHEDULING, pad,
             "calling chainhandler &%s of peer pad %s:%s",
             GST_DEBUG_FUNCPTR_NAME (peer->chainhandler),
             GST_DEBUG_PAD_NAME (GST_PAD (peer)));
@@ -3182,8 +3195,7 @@ GstData *
 gst_pad_pull (GstPad * pad)
 {
   GstRealPad *peer;
-
-  GST_CAT_LOG_OBJECT (GST_CAT_DATAFLOW, pad, "pulling");
+  GstData *data;
 
   g_return_val_if_fail (GST_PAD_DIRECTION (pad) == GST_PAD_SINK,
       GST_DATA (gst_event_new (GST_EVENT_INTERRUPT)));
@@ -3197,9 +3209,8 @@ gst_pad_pull (GstPad * pad)
   restart:
     if (peer->gethandler) {
       GstPadLink *link = GST_RPAD_LINK (pad);
-      GstData *data;
 
-      GST_CAT_LOG_OBJECT (GST_CAT_DATAFLOW, pad,
+      GST_CAT_LOG_OBJECT (GST_CAT_SCHEDULING, pad,
           "calling gethandler %s of peer pad %s:%s",
           GST_DEBUG_FUNCPTR_NAME (peer->gethandler), GST_DEBUG_PAD_NAME (peer));
 
@@ -3225,13 +3236,14 @@ gst_pad_pull (GstPad * pad)
               GST_EVENT_TYPE (data) == GST_EVENT_DISCONTINUOUS &&
               GST_EVENT_DISCONT_NEW_MEDIA (data)) {
             link->engaged = TRUE;
-            GST_CAT_LOG (GST_CAT_DATAFLOW,
+            GST_CAT_LOG (GST_CAT_SCHEDULING,
                 "link engaged by discont event for pad %s:%s",
                 GST_DEBUG_PAD_NAME (pad));
           }
         }
         if (!gst_probe_dispatcher_dispatch (&peer->probedisp, &data))
           goto restart;
+        DEBUG_DATA (pad, data, "gst_pad_pull returned");
         return data;
       }
 
@@ -3244,7 +3256,9 @@ gst_pad_pull (GstPad * pad)
               GST_DEBUG_PAD_NAME (pad), GST_DEBUG_PAD_NAME (peer)));
     }
   }
-  return GST_DATA (gst_event_new (GST_EVENT_INTERRUPT));
+  data = GST_DATA (gst_event_new (GST_EVENT_INTERRUPT));
+  DEBUG_DATA (pad, data, "gst_pad_pull returned created");
+  return data;
 }
 
 GstData *
@@ -4272,6 +4286,7 @@ gst_pad_get_formats (GstPad * pad)
 
 #define CALL_CHAINFUNC(pad, data) G_STMT_START {\
   GstData *__temp = (data); \
+  DEBUG_DATA (pad, __temp, "calling chain function with "); \
   if (GST_IS_EVENT (__temp) && \
       !GST_FLAG_IS_SET (gst_pad_get_parent (pad), GST_ELEMENT_EVENT_AWARE)) { \
     gst_pad_send_event (pad, GST_EVENT (__temp)); \
@@ -4312,7 +4327,7 @@ gst_pad_call_chain_function (GstPad * pad, GstData * data)
         GST_EVENT_TYPE (data) == GST_EVENT_DISCONTINUOUS &&
         GST_EVENT_DISCONT_NEW_MEDIA (data)) {
       link->engaged = TRUE;
-      GST_CAT_LOG (GST_CAT_DATAFLOW,
+      GST_CAT_LOG (GST_CAT_SCHEDULING,
           "link engaged by discont event for pad %s:%s",
           GST_DEBUG_PAD_NAME (pad));
     }
@@ -4333,9 +4348,13 @@ gst_pad_call_chain_function (GstPad * pad, GstData * data)
 GstData *
 gst_pad_call_get_function (GstPad * pad)
 {
+  GstData *data;
+
   g_return_val_if_fail (GST_IS_REAL_PAD (pad), NULL);
   g_return_val_if_fail (GST_PAD_IS_SRC (pad), NULL);
   g_return_val_if_fail (GST_RPAD_GETFUNC (pad) != NULL, NULL);
 
-  return GST_RPAD_GETFUNC (pad) (pad);
+  data = GST_RPAD_GETFUNC (pad) (pad);
+  DEBUG_DATA (pad, data, "getfunction returned");
+  return data;
 }
diff --git a/gst/gstqueue.c b/gst/gstqueue.c
index 3b9cb449b9..f13d9f5ff0 100644
--- a/gst/gstqueue.c
+++ b/gst/gstqueue.c
@@ -30,6 +30,8 @@
 #include "gstinfo.h"
 #include "gsterror.h"
 
+GST_DEBUG_CATEGORY_STATIC (queue_dataflow);
+
 static GstElementDetails gst_queue_details = GST_ELEMENT_DETAILS ("Queue",
     "Generic",
     "Simple data queue",
@@ -138,6 +140,8 @@ gst_queue_get_type (void)
 
     queue_type = g_type_register_static (GST_TYPE_ELEMENT,
         "GstQueue", &queue_info, 0);
+    GST_DEBUG_CATEGORY_INIT (queue_dataflow, "queue_dataflow", 0,
+        "dataflow inside the queue element");
   }
 
   return queue_type;
@@ -388,16 +392,16 @@ gst_queue_handle_pending_events (GstQueue * queue)
   while (!g_queue_is_empty (queue->events)) {
     GstQueueEventResponse *er = g_queue_pop_head (queue->events);
 
-    GST_CAT_DEBUG_OBJECT (GST_CAT_DATAFLOW, queue, "sending event upstream");
+    GST_CAT_DEBUG_OBJECT (queue_dataflow, queue, "sending event upstream");
     er->ret = gst_pad_event_default (queue->srcpad, er->event);
     er->handled = TRUE;
     g_cond_signal (queue->event_done);
-    GST_CAT_DEBUG_OBJECT (GST_CAT_DATAFLOW, queue, "event sent");
+    GST_CAT_DEBUG_OBJECT (queue_dataflow, queue, "event sent");
   }
 }
 
 #define STATUS(queue, msg) \
-  GST_CAT_LOG_OBJECT (GST_CAT_DATAFLOW, queue, \
+  GST_CAT_LOG_OBJECT (queue_dataflow, queue, \
 		      "(%s:%s) " msg ": %u of %u-%u buffers, %u of %u-%u " \
 		      "bytes, %" G_GUINT64_FORMAT " of %" G_GUINT64_FORMAT \
 		      "-%" G_GUINT64_FORMAT " ns, %u elements", \
@@ -426,10 +430,9 @@ gst_queue_chain (GstPad * pad, GstData * data)
 
 restart:
   /* we have to lock the queue since we span threads */
-  GST_CAT_LOG_OBJECT (GST_CAT_DATAFLOW, queue, "locking t:%p",
-      g_thread_self ());
+  GST_CAT_LOG_OBJECT (queue_dataflow, queue, "locking t:%p", g_thread_self ());
   g_mutex_lock (queue->qlock);
-  GST_CAT_LOG_OBJECT (GST_CAT_DATAFLOW, queue, "locked t:%p", g_thread_self ());
+  GST_CAT_LOG_OBJECT (queue_dataflow, queue, "locked t:%p", g_thread_self ());
 
   gst_queue_handle_pending_events (queue);
 
@@ -448,14 +451,14 @@ restart:
         break;
       default:
         /* we put the event in the queue, we don't have to act ourselves */
-        GST_CAT_LOG_OBJECT (GST_CAT_DATAFLOW, queue,
+        GST_CAT_LOG_OBJECT (queue_dataflow, queue,
             "adding event %p of type %d", data, GST_EVENT_TYPE (data));
         break;
     }
   }
 
   if (GST_IS_BUFFER (data))
-    GST_CAT_LOG_OBJECT (GST_CAT_DATAFLOW, queue,
+    GST_CAT_LOG_OBJECT (queue_dataflow, queue,
         "adding buffer %p of size %d", data, GST_BUFFER_SIZE (data));
 
   /* We make space available if we're "full" according to whatever
@@ -476,7 +479,7 @@ restart:
     switch (queue->leaky) {
         /* leak current buffer */
       case GST_QUEUE_LEAK_UPSTREAM:
-        GST_CAT_DEBUG_OBJECT (GST_CAT_DATAFLOW, queue,
+        GST_CAT_DEBUG_OBJECT (queue_dataflow, queue,
             "queue is full, leaking buffer on upstream end");
         /* now we can clean up and exit right away */
         g_mutex_unlock (queue->qlock);
@@ -490,7 +493,7 @@ restart:
         GList *item;
         GstData *leak = NULL;
 
-        GST_CAT_DEBUG_OBJECT (GST_CAT_DATAFLOW, queue,
+        GST_CAT_DEBUG_OBJECT (queue_dataflow, queue,
             "queue is full, leaking buffer on downstream end");
 
         for (item = queue->queue->head; item != NULL; item = item->next) {
@@ -541,7 +544,7 @@ restart:
            * or its manager, switch back to iterator so bottom
            * half of state change executes */
           if (queue->interrupt) {
-            GST_CAT_DEBUG_OBJECT (GST_CAT_DATAFLOW, queue, "interrupted");
+            GST_CAT_DEBUG_OBJECT (queue_dataflow, queue, "interrupted");
             g_mutex_unlock (queue->qlock);
             if (gst_scheduler_interrupt (gst_pad_get_scheduler (queue->sinkpad),
                     GST_ELEMENT (queue))) {
@@ -551,11 +554,11 @@ restart:
              * flush, we don't need to add the buffer to the
              * queue again */
             if (queue->flush) {
-              GST_CAT_DEBUG_OBJECT (GST_CAT_DATAFLOW, queue,
+              GST_CAT_DEBUG_OBJECT (queue_dataflow, queue,
                   "not adding pending buffer after flush");
               goto out_unref;
             }
-            GST_CAT_DEBUG_OBJECT (GST_CAT_DATAFLOW, queue,
+            GST_CAT_DEBUG_OBJECT (queue_dataflow, queue,
                 "adding pending buffer after interrupt");
             goto restart;
           }
@@ -572,7 +575,7 @@ restart:
                * unref the buffer *before* calling GST_ELEMENT_ERROR */
               return;
             } else {
-              GST_CAT_WARNING_OBJECT (GST_CAT_DATAFLOW, queue,
+              GST_CAT_WARNING_OBJECT (queue_dataflow, queue,
                   "%s: waiting for the app to restart "
                   "source pad elements", GST_ELEMENT_NAME (queue));
             }
@@ -616,7 +619,7 @@ restart:
 
   STATUS (queue, "+ level");
 
-  GST_CAT_LOG_OBJECT (GST_CAT_DATAFLOW, queue, "signalling item_add");
+  GST_CAT_LOG_OBJECT (queue_dataflow, queue, "signalling item_add");
   g_cond_signal (queue->item_add);
   g_mutex_unlock (queue->qlock);
 
@@ -640,10 +643,9 @@ gst_queue_get (GstPad * pad)
 
 restart:
   /* have to lock for thread-safety */
-  GST_CAT_LOG_OBJECT (GST_CAT_DATAFLOW, queue,
-      "locking t:%p", g_thread_self ());
+  GST_CAT_LOG_OBJECT (queue_dataflow, queue, "locking t:%p", g_thread_self ());
   g_mutex_lock (queue->qlock);
-  GST_CAT_LOG_OBJECT (GST_CAT_DATAFLOW, queue, "locked t:%p", g_thread_self ());
+  GST_CAT_LOG_OBJECT (queue_dataflow, queue, "locked t:%p", g_thread_self ());
 
   if (queue->queue->length == 0 ||
       (queue->min_threshold.buffers > 0 &&
@@ -668,7 +670,7 @@ restart:
        * manager, switch back to iterator so bottom half of state
        * change executes. */
       if (queue->interrupt) {
-        GST_CAT_DEBUG_OBJECT (GST_CAT_DATAFLOW, queue, "interrupted");
+        GST_CAT_DEBUG_OBJECT (queue_dataflow, queue, "interrupted");
         g_mutex_unlock (queue->qlock);
         if (gst_scheduler_interrupt (gst_pad_get_scheduler (queue->srcpad),
                 GST_ELEMENT (queue)))
@@ -683,7 +685,7 @@ restart:
               ("deadlock found, shutting down sink pad elements"));
           goto restart;
         } else {
-          GST_CAT_WARNING_OBJECT (GST_CAT_DATAFLOW, queue,
+          GST_CAT_WARNING_OBJECT (queue_dataflow, queue,
               "%s: waiting for the app to restart "
               "source pad elements", GST_ELEMENT_NAME (queue));
         }
@@ -698,7 +700,7 @@ restart:
         g_time_val_add (&timeout, queue->block_timeout / 1000);
         if (!g_cond_timed_wait (queue->item_add, queue->qlock, &timeout)) {
           g_mutex_unlock (queue->qlock);
-          GST_CAT_WARNING_OBJECT (GST_CAT_DATAFLOW, queue,
+          GST_CAT_WARNING_OBJECT (queue_dataflow, queue,
               "Sending filler event");
           return GST_DATA (gst_event_new_filler ());
         }
@@ -716,7 +718,7 @@ restart:
 
   /* There's something in the list now, whatever it is */
   data = g_queue_pop_head (queue->queue);
-  GST_CAT_LOG_OBJECT (GST_CAT_DATAFLOW, queue,
+  GST_CAT_LOG_OBJECT (queue_dataflow, queue,
       "retrieved data %p from queue", data);
 
   if (data == NULL)
@@ -736,7 +738,7 @@ restart:
 
   STATUS (queue, "after _get()");
 
-  GST_CAT_LOG_OBJECT (GST_CAT_DATAFLOW, queue, "signalling item_del");
+  GST_CAT_LOG_OBJECT (queue_dataflow, queue, "signalling item_del");
   g_cond_signal (queue->item_del);
   g_mutex_unlock (queue->qlock);
 
@@ -748,7 +750,7 @@ restart:
 
     switch (GST_EVENT_TYPE (event)) {
       case GST_EVENT_EOS:
-        GST_CAT_DEBUG_OBJECT (GST_CAT_DATAFLOW, queue,
+        GST_CAT_DEBUG_OBJECT (queue_dataflow, queue,
             "queue \"%s\" eos", GST_ELEMENT_NAME (queue));
         gst_element_set_eos (GST_ELEMENT (queue));
         break;
@@ -776,7 +778,7 @@ gst_queue_handle_src_event (GstPad * pad, GstEvent * event)
     er.event = event;
     er.handled = FALSE;
     g_queue_push_tail (queue->events, &er);
-    GST_CAT_WARNING_OBJECT (GST_CAT_DATAFLOW, queue,
+    GST_CAT_WARNING_OBJECT (queue_dataflow, queue,
         "Preparing for loop for event handler");
     /* see the chain function on why this is here - it prevents a deadlock */
     g_cond_signal (queue->item_del);
@@ -787,7 +789,7 @@ gst_queue_handle_src_event (GstPad * pad, GstEvent * event)
       g_time_val_add (&timeout, 500 * 1000);    /* half a second */
       if (!g_cond_timed_wait (queue->event_done, queue->qlock, &timeout) &&
           !er.handled) {
-        GST_CAT_WARNING_OBJECT (GST_CAT_DATAFLOW, queue,
+        GST_CAT_WARNING_OBJECT (queue_dataflow, queue,
             "timeout in upstream event handling");
         /* remove ourselves from the pending list. Since we're
          * locked, others cannot reference this anymore. */
@@ -799,14 +801,14 @@ gst_queue_handle_src_event (GstPad * pad, GstEvent * event)
         goto handled;
       }
     }
-    GST_CAT_WARNING_OBJECT (GST_CAT_DATAFLOW, queue, "Event handled");
+    GST_CAT_WARNING_OBJECT (queue_dataflow, queue, "Event handled");
     res = er.ret;
   } else {
     res = gst_pad_event_default (pad, event);
 
     switch (GST_EVENT_TYPE (event)) {
       case GST_EVENT_FLUSH:
-        GST_CAT_DEBUG_OBJECT (GST_CAT_DATAFLOW, queue,
+        GST_CAT_DEBUG_OBJECT (queue_dataflow, queue,
             "FLUSH event, flushing queue\n");
         gst_queue_locked_flush (queue);
         break;
diff --git a/plugins/elements/gstfilesrc.c b/plugins/elements/gstfilesrc.c
index ce0530b814..cb8321e64a 100644
--- a/plugins/elements/gstfilesrc.c
+++ b/plugins/elements/gstfilesrc.c
@@ -585,7 +585,7 @@ gst_filesrc_get_mmap (GstFileSrc * src)
       mapsize = src->mapsize;
 
       /* double the mapsize as long as the readsize is smaller */
-      while (readsize - (src->curoffset - nextmap) > mapsize) {
+      while (readsize + src->curoffset > nextmap + mapsize) {
         GST_LOG_OBJECT (src, "readsize smaller then mapsize %08x %d",
             readsize, (int) mapsize);
         mapsize <<= 1;
@@ -693,7 +693,7 @@ gst_filesrc_get (GstPad * pad)
     GST_DEBUG_OBJECT (src, "sending discont");
     event =
         gst_event_new_discontinuous (src->need_discont > 1, GST_FORMAT_BYTES,
-        src->curoffset, NULL);
+        (guint64) src->curoffset, GST_FORMAT_UNDEFINED);
     src->need_discont = 0;
     return GST_DATA (event);
   }
diff --git a/plugins/elements/gstqueue.c b/plugins/elements/gstqueue.c
index 3b9cb449b9..f13d9f5ff0 100644
--- a/plugins/elements/gstqueue.c
+++ b/plugins/elements/gstqueue.c
@@ -30,6 +30,8 @@
 #include "gstinfo.h"
 #include "gsterror.h"
 
+GST_DEBUG_CATEGORY_STATIC (queue_dataflow);
+
 static GstElementDetails gst_queue_details = GST_ELEMENT_DETAILS ("Queue",
     "Generic",
     "Simple data queue",
@@ -138,6 +140,8 @@ gst_queue_get_type (void)
 
     queue_type = g_type_register_static (GST_TYPE_ELEMENT,
         "GstQueue", &queue_info, 0);
+    GST_DEBUG_CATEGORY_INIT (queue_dataflow, "queue_dataflow", 0,
+        "dataflow inside the queue element");
   }
 
   return queue_type;
@@ -388,16 +392,16 @@ gst_queue_handle_pending_events (GstQueue * queue)
   while (!g_queue_is_empty (queue->events)) {
     GstQueueEventResponse *er = g_queue_pop_head (queue->events);
 
-    GST_CAT_DEBUG_OBJECT (GST_CAT_DATAFLOW, queue, "sending event upstream");
+    GST_CAT_DEBUG_OBJECT (queue_dataflow, queue, "sending event upstream");
     er->ret = gst_pad_event_default (queue->srcpad, er->event);
     er->handled = TRUE;
     g_cond_signal (queue->event_done);
-    GST_CAT_DEBUG_OBJECT (GST_CAT_DATAFLOW, queue, "event sent");
+    GST_CAT_DEBUG_OBJECT (queue_dataflow, queue, "event sent");
   }
 }
 
 #define STATUS(queue, msg) \
-  GST_CAT_LOG_OBJECT (GST_CAT_DATAFLOW, queue, \
+  GST_CAT_LOG_OBJECT (queue_dataflow, queue, \
 		      "(%s:%s) " msg ": %u of %u-%u buffers, %u of %u-%u " \
 		      "bytes, %" G_GUINT64_FORMAT " of %" G_GUINT64_FORMAT \
 		      "-%" G_GUINT64_FORMAT " ns, %u elements", \
@@ -426,10 +430,9 @@ gst_queue_chain (GstPad * pad, GstData * data)
 
 restart:
   /* we have to lock the queue since we span threads */
-  GST_CAT_LOG_OBJECT (GST_CAT_DATAFLOW, queue, "locking t:%p",
-      g_thread_self ());
+  GST_CAT_LOG_OBJECT (queue_dataflow, queue, "locking t:%p", g_thread_self ());
   g_mutex_lock (queue->qlock);
-  GST_CAT_LOG_OBJECT (GST_CAT_DATAFLOW, queue, "locked t:%p", g_thread_self ());
+  GST_CAT_LOG_OBJECT (queue_dataflow, queue, "locked t:%p", g_thread_self ());
 
   gst_queue_handle_pending_events (queue);
 
@@ -448,14 +451,14 @@ restart:
         break;
       default:
         /* we put the event in the queue, we don't have to act ourselves */
-        GST_CAT_LOG_OBJECT (GST_CAT_DATAFLOW, queue,
+        GST_CAT_LOG_OBJECT (queue_dataflow, queue,
             "adding event %p of type %d", data, GST_EVENT_TYPE (data));
         break;
     }
   }
 
   if (GST_IS_BUFFER (data))
-    GST_CAT_LOG_OBJECT (GST_CAT_DATAFLOW, queue,
+    GST_CAT_LOG_OBJECT (queue_dataflow, queue,
         "adding buffer %p of size %d", data, GST_BUFFER_SIZE (data));
 
   /* We make space available if we're "full" according to whatever
@@ -476,7 +479,7 @@ restart:
     switch (queue->leaky) {
         /* leak current buffer */
       case GST_QUEUE_LEAK_UPSTREAM:
-        GST_CAT_DEBUG_OBJECT (GST_CAT_DATAFLOW, queue,
+        GST_CAT_DEBUG_OBJECT (queue_dataflow, queue,
             "queue is full, leaking buffer on upstream end");
         /* now we can clean up and exit right away */
         g_mutex_unlock (queue->qlock);
@@ -490,7 +493,7 @@ restart:
         GList *item;
         GstData *leak = NULL;
 
-        GST_CAT_DEBUG_OBJECT (GST_CAT_DATAFLOW, queue,
+        GST_CAT_DEBUG_OBJECT (queue_dataflow, queue,
             "queue is full, leaking buffer on downstream end");
 
         for (item = queue->queue->head; item != NULL; item = item->next) {
@@ -541,7 +544,7 @@ restart:
            * or its manager, switch back to iterator so bottom
            * half of state change executes */
           if (queue->interrupt) {
-            GST_CAT_DEBUG_OBJECT (GST_CAT_DATAFLOW, queue, "interrupted");
+            GST_CAT_DEBUG_OBJECT (queue_dataflow, queue, "interrupted");
             g_mutex_unlock (queue->qlock);
             if (gst_scheduler_interrupt (gst_pad_get_scheduler (queue->sinkpad),
                     GST_ELEMENT (queue))) {
@@ -551,11 +554,11 @@ restart:
              * flush, we don't need to add the buffer to the
              * queue again */
             if (queue->flush) {
-              GST_CAT_DEBUG_OBJECT (GST_CAT_DATAFLOW, queue,
+              GST_CAT_DEBUG_OBJECT (queue_dataflow, queue,
                   "not adding pending buffer after flush");
               goto out_unref;
             }
-            GST_CAT_DEBUG_OBJECT (GST_CAT_DATAFLOW, queue,
+            GST_CAT_DEBUG_OBJECT (queue_dataflow, queue,
                 "adding pending buffer after interrupt");
             goto restart;
           }
@@ -572,7 +575,7 @@ restart:
                * unref the buffer *before* calling GST_ELEMENT_ERROR */
               return;
             } else {
-              GST_CAT_WARNING_OBJECT (GST_CAT_DATAFLOW, queue,
+              GST_CAT_WARNING_OBJECT (queue_dataflow, queue,
                   "%s: waiting for the app to restart "
                   "source pad elements", GST_ELEMENT_NAME (queue));
             }
@@ -616,7 +619,7 @@ restart:
 
   STATUS (queue, "+ level");
 
-  GST_CAT_LOG_OBJECT (GST_CAT_DATAFLOW, queue, "signalling item_add");
+  GST_CAT_LOG_OBJECT (queue_dataflow, queue, "signalling item_add");
   g_cond_signal (queue->item_add);
   g_mutex_unlock (queue->qlock);
 
@@ -640,10 +643,9 @@ gst_queue_get (GstPad * pad)
 
 restart:
   /* have to lock for thread-safety */
-  GST_CAT_LOG_OBJECT (GST_CAT_DATAFLOW, queue,
-      "locking t:%p", g_thread_self ());
+  GST_CAT_LOG_OBJECT (queue_dataflow, queue, "locking t:%p", g_thread_self ());
   g_mutex_lock (queue->qlock);
-  GST_CAT_LOG_OBJECT (GST_CAT_DATAFLOW, queue, "locked t:%p", g_thread_self ());
+  GST_CAT_LOG_OBJECT (queue_dataflow, queue, "locked t:%p", g_thread_self ());
 
   if (queue->queue->length == 0 ||
       (queue->min_threshold.buffers > 0 &&
@@ -668,7 +670,7 @@ restart:
        * manager, switch back to iterator so bottom half of state
        * change executes. */
       if (queue->interrupt) {
-        GST_CAT_DEBUG_OBJECT (GST_CAT_DATAFLOW, queue, "interrupted");
+        GST_CAT_DEBUG_OBJECT (queue_dataflow, queue, "interrupted");
         g_mutex_unlock (queue->qlock);
         if (gst_scheduler_interrupt (gst_pad_get_scheduler (queue->srcpad),
                 GST_ELEMENT (queue)))
@@ -683,7 +685,7 @@ restart:
               ("deadlock found, shutting down sink pad elements"));
           goto restart;
         } else {
-          GST_CAT_WARNING_OBJECT (GST_CAT_DATAFLOW, queue,
+          GST_CAT_WARNING_OBJECT (queue_dataflow, queue,
               "%s: waiting for the app to restart "
               "source pad elements", GST_ELEMENT_NAME (queue));
         }
@@ -698,7 +700,7 @@ restart:
         g_time_val_add (&timeout, queue->block_timeout / 1000);
         if (!g_cond_timed_wait (queue->item_add, queue->qlock, &timeout)) {
           g_mutex_unlock (queue->qlock);
-          GST_CAT_WARNING_OBJECT (GST_CAT_DATAFLOW, queue,
+          GST_CAT_WARNING_OBJECT (queue_dataflow, queue,
               "Sending filler event");
           return GST_DATA (gst_event_new_filler ());
         }
@@ -716,7 +718,7 @@ restart:
 
   /* There's something in the list now, whatever it is */
   data = g_queue_pop_head (queue->queue);
-  GST_CAT_LOG_OBJECT (GST_CAT_DATAFLOW, queue,
+  GST_CAT_LOG_OBJECT (queue_dataflow, queue,
       "retrieved data %p from queue", data);
 
   if (data == NULL)
@@ -736,7 +738,7 @@ restart:
 
   STATUS (queue, "after _get()");
 
-  GST_CAT_LOG_OBJECT (GST_CAT_DATAFLOW, queue, "signalling item_del");
+  GST_CAT_LOG_OBJECT (queue_dataflow, queue, "signalling item_del");
   g_cond_signal (queue->item_del);
   g_mutex_unlock (queue->qlock);
 
@@ -748,7 +750,7 @@ restart:
 
     switch (GST_EVENT_TYPE (event)) {
       case GST_EVENT_EOS:
-        GST_CAT_DEBUG_OBJECT (GST_CAT_DATAFLOW, queue,
+        GST_CAT_DEBUG_OBJECT (queue_dataflow, queue,
             "queue \"%s\" eos", GST_ELEMENT_NAME (queue));
         gst_element_set_eos (GST_ELEMENT (queue));
         break;
@@ -776,7 +778,7 @@ gst_queue_handle_src_event (GstPad * pad, GstEvent * event)
     er.event = event;
     er.handled = FALSE;
     g_queue_push_tail (queue->events, &er);
-    GST_CAT_WARNING_OBJECT (GST_CAT_DATAFLOW, queue,
+    GST_CAT_WARNING_OBJECT (queue_dataflow, queue,
         "Preparing for loop for event handler");
     /* see the chain function on why this is here - it prevents a deadlock */
     g_cond_signal (queue->item_del);
@@ -787,7 +789,7 @@ gst_queue_handle_src_event (GstPad * pad, GstEvent * event)
       g_time_val_add (&timeout, 500 * 1000);    /* half a second */
       if (!g_cond_timed_wait (queue->event_done, queue->qlock, &timeout) &&
           !er.handled) {
-        GST_CAT_WARNING_OBJECT (GST_CAT_DATAFLOW, queue,
+        GST_CAT_WARNING_OBJECT (queue_dataflow, queue,
             "timeout in upstream event handling");
         /* remove ourselves from the pending list. Since we're
          * locked, others cannot reference this anymore. */
@@ -799,14 +801,14 @@ gst_queue_handle_src_event (GstPad * pad, GstEvent * event)
         goto handled;
       }
     }
-    GST_CAT_WARNING_OBJECT (GST_CAT_DATAFLOW, queue, "Event handled");
+    GST_CAT_WARNING_OBJECT (queue_dataflow, queue, "Event handled");
     res = er.ret;
   } else {
     res = gst_pad_event_default (pad, event);
 
     switch (GST_EVENT_TYPE (event)) {
       case GST_EVENT_FLUSH:
-        GST_CAT_DEBUG_OBJECT (GST_CAT_DATAFLOW, queue,
+        GST_CAT_DEBUG_OBJECT (queue_dataflow, queue,
             "FLUSH event, flushing queue\n");
         gst_queue_locked_flush (queue);
         break;
diff --git a/plugins/elements/gsttypefindelement.c b/plugins/elements/gsttypefindelement.c
index c4ca7df3e0..05d491d768 100644
--- a/plugins/elements/gsttypefindelement.c
+++ b/plugins/elements/gsttypefindelement.c
@@ -359,6 +359,9 @@ stop_typefinding (GstTypeFindElement * typefind)
       GST_WARNING_OBJECT (typefind,
           "could not seek to required position %u, hope for the best", size);
     }
+    gst_pad_push (typefind->src, GST_DATA (gst_event_new_discontinuous (TRUE,
+                GST_FORMAT_DEFAULT, (guint64) 0, GST_FORMAT_BYTES, (guint64) 0,
+                GST_FORMAT_UNDEFINED)));
     if (size
         && (buffer = gst_buffer_store_get_buffer (typefind->store, 0, size))) {
       GST_DEBUG_OBJECT (typefind, "pushing cached data (%u bytes)", size);