pad: add 2 new caps methods

Add method to get the currently configured caps on the pad.
Add a method to check if caps are configured on a pad.

diff --git a/gst/gstpad.c b/gst/gstpad.c
index f62837d..7cbdfdd 100644 (file)
--- a/gst/gstpad.c
+++ b/gst/gstpad.c
@@ -2254,6 +2254,54 @@ done:
 }
 
 /**
+ * gst_pad_has_current_caps:
+ * @pad: a  #GstPad to check
+ *
+ * Check if @pad has caps set on it with gst_pad_set_caps().
+ *
+ * Returns: TRUE when @pad has caps associated with it.
+ */
+gboolean
+gst_pad_has_current_caps (GstPad * pad)
+{
+  gboolean result;
+
+  g_return_val_if_fail (GST_IS_PAD (pad), FALSE);
+
+  GST_OBJECT_LOCK (pad);
+  GST_CAT_DEBUG_OBJECT (GST_CAT_CAPS, pad, "check current pad caps");
+  result = (get_pad_caps (pad) != NULL);
+  GST_OBJECT_UNLOCK (pad);
+
+  return result;
+}
+
+/**
+ * gst_pad_get_current_caps:
+ * @pad: a  #GstPad to get the current capabilities of.
+ *
+ * Gets the capabilities currently configured on @pad with the last call to
+ * gst_pad_set_caps().
+ *
+ * Returns: the current caps of the pad with incremented ref-count.
+ */
+GstCaps *
+gst_pad_get_current_caps (GstPad * pad)
+{
+  GstCaps *result;
+
+  g_return_val_if_fail (GST_IS_PAD (pad), NULL);
+
+  GST_OBJECT_LOCK (pad);
+  GST_CAT_DEBUG_OBJECT (GST_CAT_CAPS, pad, "get current pad caps");
+  if ((result = get_pad_caps (pad)))
+    gst_caps_ref (result);
+  GST_OBJECT_UNLOCK (pad);
+
+  return result;
+}
+
+/**
  * gst_pad_get_caps:
  * @pad: a  #GstPad to get the capabilities of.
  *
@@ -2287,6 +2335,7 @@ gst_pad_get_caps (GstPad * pad)
   return result;
 }
 
+
 /**
  * gst_pad_peer_get_caps:
  * @pad: a  #GstPad to get the capabilities of.

diff --git a/gst/gstpad.h b/gst/gstpad.h
index 681102d..e9a4fee 100644 (file)
--- a/gst/gstpad.h
+++ b/gst/gstpad.h
@@ -850,6 +850,8 @@ void                        gst_pad_set_setcaps_function            (GstPad *pad, GstPadSetCapsFunction setcaps
 G_CONST_RETURN GstCaps*        gst_pad_get_pad_template_caps           (GstPad *pad);
 
 /* capsnego function for linked/unlinked pads */
+GstCaps *              gst_pad_get_current_caps                (GstPad * pad);
+gboolean               gst_pad_has_current_caps                (GstPad * pad);
 GstCaps *              gst_pad_get_caps                        (GstPad * pad);
 void                   gst_pad_fixate_caps                     (GstPad * pad, GstCaps *caps);
 gboolean               gst_pad_accept_caps                     (GstPad * pad, GstCaps *caps);
@@ -860,7 +862,7 @@ gboolean            gst_pad_peer_accept_caps                (GstPad * pad, GstCaps *caps);
 
 /* capsnego for linked pads */
 GstCaps *              gst_pad_get_allowed_caps                (GstPad * pad);
-GstCaps *              gst_pad_get_negotiated_caps             (GstPad * pad);
+GstCaps *               gst_pad_get_negotiated_caps             (GstPad * pad);
 
 /* data passing functions to peer */
 GstFlowReturn          gst_pad_push                            (GstPad *pad, GstBuffer *buffer);