pad: forward events by default

Always forward all events in the default handler. Previously it used to not
forward caps events by default. It makes more sense to forward the caps events,
if the element is interested in the caps, it will implement an event handler to
retrieve the caps and then it can decide to forward or not. If the element has
no event handler, it probably just doesn't care about caps and it probably is
also not going to modify the data in a way that needs a caps change.

gst/gstpad.c

@@ -3112,7 +3112,7 @@ no_iter:
 typedef struct
 {
   GstEvent *event;
-  gboolean res;
+  gboolean result;
   gboolean dispatched;
 } EventData;
 
@@ -3124,7 +3124,7 @@ event_forward_func (GstPad * pad, EventData * data)
   GST_LOG_OBJECT (pad, "Reffing and pushing event %p (%s) to %s:%s",
       data->event, GST_EVENT_TYPE_NAME (data->event), GST_DEBUG_PAD_NAME (pad));
 
-  data->res |= gst_pad_push_event (pad, gst_event_ref (data->event));
+  data->result |= gst_pad_push_event (pad, gst_event_ref (data->event));
 
   data->dispatched = TRUE;
 
@@ -3132,42 +3132,6 @@ event_forward_func (GstPad * pad, EventData * data)
   return FALSE;
 }
 
-/**
- * gst_pad_event_forward:
- * @pad: a #GstPad
- * @event: (transfer full): the #GstEvent to handle.
- *
- * Forward @event to all internally linked pads of @pad. This function takes
- * ownership of @event.
- *
- * Returns: TRUE if the event was sent succesfully.
- */
-gboolean
-gst_pad_event_forward (GstPad * pad, GstEvent * event)
-{
-  gboolean res;
-  EventData data;
-
-  g_return_val_if_fail (GST_IS_PAD (pad), FALSE);
-  g_return_val_if_fail (event != NULL, FALSE);
-
-  data.event = event;
-  data.res = FALSE;
-
-  gst_pad_forward (pad, (GstPadForwardFunction) event_forward_func, &data);
-
-  gst_event_unref (event);
-
-  /* for sinkpads without a parent element or without internal links, nothing
-   * will be dispatched but we still want to return TRUE. */
-  if (data.dispatched)
-    res = data.res;
-  else
-    res = TRUE;
-
-  return res;
-}
-
 /**
  * gst_pad_event_default:
  * @pad: a #GstPad to call the default event handler on.
@@ -3188,7 +3152,8 @@ gst_pad_event_forward (GstPad * pad, GstEvent * event)
 gboolean
 gst_pad_event_default (GstPad * pad, GstEvent * event)
 {
-  gboolean result = TRUE, forward = TRUE;
+  gboolean result;
+  EventData data;
 
   g_return_val_if_fail (GST_IS_PAD (pad), FALSE);
   g_return_val_if_fail (event != NULL, FALSE);
@@ -3202,19 +3167,23 @@ gst_pad_event_default (GstPad * pad, GstEvent * event)
       gst_pad_pause_task (pad);
       break;
     }
-    case GST_EVENT_CAPS:
-    {
-      /* don't forward by default */
-      forward = FALSE;
-      break;
-    }
     default:
       break;
   }
 
-  if (forward)
+  data.event = event;
-    result = gst_pad_event_forward (pad, event);
+  data.dispatched = FALSE;
+  data.result = FALSE;
+
+  gst_pad_forward (pad, (GstPadForwardFunction) event_forward_func, &data);
+
+  /* for sinkpads without a parent element or without internal links, nothing
+   * will be dispatched but we still want to return TRUE. */
+  if (data.dispatched)
+    result = data.result;
   else
+    result = TRUE;
+
   gst_event_unref (event);
 
   return result;

gst/gstpad.h

@@ -892,7 +892,6 @@ GstFlowReturn		gst_pad_pull_range			(GstPad *pad, guint64 offset, guint size,
 								 GstBuffer **buffer);
 gboolean		gst_pad_push_event			(GstPad *pad, GstEvent *event);
 gboolean		gst_pad_event_default			(GstPad *pad, GstEvent *event);
-gboolean		gst_pad_event_forward			(GstPad *pad, GstEvent *event);
 
 /* data passing functions on pad */
 GstFlowReturn		gst_pad_chain				(GstPad *pad, GstBuffer *buffer);

plugins/elements/gstoutputselector.c

@@ -538,7 +538,7 @@ gst_output_selector_handle_sink_event (GstPad * pad, GstEvent * event)
       switch (sel->pad_negotiation_mode) {
         case GST_OUTPUT_SELECTOR_PAD_NEGOTIATION_MODE_ALL:
           /* Send caps to all src pads */
-          res = gst_pad_event_forward (pad, event);
+          res = gst_pad_event_default (pad, event);
           break;
         case GST_OUTPUT_SELECTOR_PAD_NEGOTIATION_MODE_NONE:
           gst_event_unref (event);

plugins/elements/gsttee.c

@@ -484,9 +484,6 @@ gst_tee_sink_event (GstPad * pad, GstEvent * event)
   gboolean res;
 
   switch (GST_EVENT_TYPE (event)) {
-    case GST_EVENT_CAPS:
-      res = gst_pad_event_forward (pad, event);
-      break;
     default:
       res = gst_pad_event_default (pad, event);
       break;