caps: use the caps event

Use the caps event instead of gst_pad_set_caps() and the setcaps function

gst/gstdebugutils.c

@@ -159,16 +159,15 @@ debug_dump_pad (GstPad * pad, const gchar * color_name,
     }
   }
   if (details & GST_DEBUG_GRAPH_SHOW_STATES) {
-    gchar pad_flags[6];
+    gchar pad_flags[5];
     const gchar *activation_mode = "-><";
 
     /* check if pad flags */
     pad_flags[0] = GST_OBJECT_FLAG_IS_SET (pad, GST_PAD_BLOCKED) ? 'B' : 'b';
     pad_flags[1] = GST_OBJECT_FLAG_IS_SET (pad, GST_PAD_FLUSHING) ? 'F' : 'f';
     pad_flags[2] = GST_OBJECT_FLAG_IS_SET (pad, GST_PAD_IN_GETCAPS) ? 'G' : 'g';
-    pad_flags[3] = GST_OBJECT_FLAG_IS_SET (pad, GST_PAD_IN_SETCAPS) ? 'S' : 's';
-    pad_flags[4] = GST_OBJECT_FLAG_IS_SET (pad, GST_PAD_BLOCKING) ? 'B' : 'b';
-    pad_flags[5] = '\0';
+    pad_flags[3] = GST_OBJECT_FLAG_IS_SET (pad, GST_PAD_BLOCKING) ? 'B' : 'b';
+    pad_flags[4] = '\0';
 
     fprintf (out,
         "%s  %s_%s [color=black, fillcolor=\"%s\", label=\"%s\\n[%c][%s]\", height=\"0.2\", style=\"%s\"];\n",

libs/gst/base/gstbasesink.c

@@ -4248,7 +4248,8 @@ gst_base_sink_negotiate_pull (GstBaseSink * basesink)
     GST_DEBUG_OBJECT (basesink, "fixated to: %" GST_PTR_FORMAT, caps);
 
     if (gst_caps_is_fixed (caps)) {
-      if (!gst_pad_set_caps (GST_BASE_SINK_PAD (basesink), caps))
+      if (!gst_pad_send_event (GST_BASE_SINK_PAD (basesink),
+              gst_event_new_caps (caps)))
         goto could_not_set_caps;
 
       GST_OBJECT_LOCK (basesink);

libs/gst/base/gstbasetransform.c

@@ -1159,11 +1159,6 @@ gst_base_transform_setcaps (GstBaseTransform * trans, GstPad * pad,
   otherpad = (pad == trans->srcpad) ? trans->sinkpad : trans->srcpad;
   otherpeer = gst_pad_get_peer (otherpad);
 
-  /* if we get called recursively, we bail out now to avoid an
-   * infinite loop. */
-  if (GST_PAD_IS_IN_SETCAPS (otherpad))
-    goto done;
-
   GST_DEBUG_OBJECT (pad, "have new caps %p %" GST_PTR_FORMAT, caps, caps);
 
   /* find best possible caps for the other pad */

libs/gst/check/gstcheck.c

@@ -207,7 +207,8 @@ gst_check_setup_src_pad (GstElement * element,
 
   srcpad = gst_check_setup_src_pad_by_name (element, tmpl, "sink");
   if (caps)
-    fail_unless (gst_pad_set_caps (srcpad, caps), "could not set caps on pad");
+    fail_unless (gst_pad_push_event (srcpad, gst_event_new_caps (caps)),
+        "could not set caps on pad");
   return srcpad;
 }
 
@@ -286,7 +287,8 @@ gst_check_setup_sink_pad (GstElement * element, GstStaticPadTemplate * tmpl,
 
   sinkpad = gst_check_setup_sink_pad_by_name (element, tmpl, "src");
   if (caps)
-    fail_unless (gst_pad_set_caps (sinkpad, caps), "Could not set pad caps");
+    fail_unless (gst_pad_send_event (sinkpad, gst_event_new_caps (caps)),
+        "Could not set pad caps");
   return sinkpad;
 }
 

plugins/elements/gstcapsfilter.c

@@ -354,7 +354,7 @@ gst_capsfilter_prepare_buf (GstBaseTransform * trans, GstBuffer * input,
           GST_PTR_FORMAT " to apply to srcpad", out_caps);
 
       if (!gst_pad_has_current_caps (trans->srcpad))
-        gst_pad_set_caps (trans->srcpad, out_caps);
+        gst_pad_push_event (trans->srcpad, gst_event_new_caps (out_caps));
     } else {
       gchar *caps_str = gst_caps_to_string (out_caps);
 

plugins/elements/gsttypefindelement.c

@@ -144,9 +144,10 @@ static gboolean gst_type_find_element_src_event (GstPad * pad,
     GstEvent * event);
 static gboolean gst_type_find_handle_src_query (GstPad * pad, GstQuery * query);
 
-static gboolean gst_type_find_element_handle_event (GstPad * pad,
+static gboolean gst_type_find_element_sink_event (GstPad * pad,
     GstEvent * event);
-static gboolean gst_type_find_element_setcaps (GstPad * pad, GstCaps * caps);
+static gboolean gst_type_find_element_setcaps (GstTypeFindElement * typefind,
+    GstCaps * caps);
 static GstFlowReturn gst_type_find_element_chain (GstPad * sinkpad,
     GstBuffer * buffer);
 static GstFlowReturn gst_type_find_element_getrange (GstPad * srcpad,
@@ -184,7 +185,7 @@ gst_type_find_element_have_type (GstTypeFindElement * typefind,
   copy = gst_caps_ref (typefind->caps);
   GST_OBJECT_UNLOCK (typefind);
 
-  gst_pad_set_caps (typefind->src, copy);
+  gst_pad_push_event (typefind->src, gst_event_new_caps (copy));
   gst_caps_unref (copy);
 }
 
@@ -258,12 +259,10 @@ gst_type_find_element_init (GstTypeFindElement * typefind)
 
   gst_pad_set_activate_function (typefind->sink,
       GST_DEBUG_FUNCPTR (gst_type_find_element_activate));
-  gst_pad_set_setcaps_function (typefind->sink,
-      GST_DEBUG_FUNCPTR (gst_type_find_element_setcaps));
   gst_pad_set_chain_function (typefind->sink,
       GST_DEBUG_FUNCPTR (gst_type_find_element_chain));
   gst_pad_set_event_function (typefind->sink,
-      GST_DEBUG_FUNCPTR (gst_type_find_element_handle_event));
+      GST_DEBUG_FUNCPTR (gst_type_find_element_sink_event));
   gst_element_add_pad (GST_ELEMENT (typefind), typefind->sink);
 
   /* srcpad */
@@ -519,7 +518,7 @@ no_data:
 }
 
 static gboolean
-gst_type_find_element_handle_event (GstPad * pad, GstEvent * event)
+gst_type_find_element_sink_event (GstPad * pad, GstEvent * event)
 {
   gboolean res = FALSE;
   GstTypeFindElement *typefind = GST_TYPE_FIND_ELEMENT (GST_PAD_PARENT (pad));
@@ -530,6 +529,20 @@ gst_type_find_element_handle_event (GstPad * pad, GstEvent * event)
   switch (typefind->mode) {
     case MODE_TYPEFIND:
       switch (GST_EVENT_TYPE (event)) {
+        case GST_EVENT_CAPS:
+        {
+          GstCaps *caps;
+
+          /* first pass the caps event downstream */
+          res = gst_pad_push_event (typefind->src, gst_event_ref (event));
+
+          /* then parse and push out our data */
+          gst_event_parse_caps (event, &caps);
+          res = gst_type_find_element_setcaps (typefind, caps);
+
+          gst_event_unref (event);
+          break;
+        }
         case GST_EVENT_EOS:
         {
           GST_INFO_OBJECT (typefind, "Got EOS and no type found yet");
@@ -593,12 +606,8 @@ gst_type_find_element_send_cached_events (GstTypeFindElement * typefind)
 }
 
 static gboolean
-gst_type_find_element_setcaps (GstPad * pad, GstCaps * caps)
+gst_type_find_element_setcaps (GstTypeFindElement * typefind, GstCaps * caps)
 {
-  GstTypeFindElement *typefind;
-
-  typefind = GST_TYPE_FIND_ELEMENT (GST_PAD_PARENT (pad));
-
   /* don't operate on ANY caps */
   if (gst_caps_is_any (caps))
     return TRUE;

tools/gst-inspect.c

@@ -838,9 +838,6 @@ print_pad_info (GstElement * element)
     if (pad->getcapsfunc)
       n_print ("      Has getcapsfunc(): %s\n",
           GST_DEBUG_FUNCPTR_NAME (pad->getcapsfunc));
-    if (pad->setcapsfunc)
-      n_print ("      Has setcapsfunc(): %s\n",
-          GST_DEBUG_FUNCPTR_NAME (pad->setcapsfunc));
     /* gst_pad_acceptcaps_default is static :/ */
     if (pad->acceptcapsfunc)
       n_print ("      Has acceptcapsfunc(): %s\n",