validate-runner / monitor: Let the user single out pads.

That's some pretty specific code but it should be helpful.
The following syntax can be used : element-name::pad-name.

+ Free return of gst_object_get_name.

validate/gst/validate/gst-validate-monitor.c

@@ -188,23 +188,48 @@ gst_validate_monitor_do_setup (GstValidateMonitor * monitor)
   return TRUE;
 }
 
+static GstValidateReportingLevel
+_get_report_level_for_pad (GstValidateRunner *runner, GstObject *pad)
+{
+  GstObject *parent;
+  gchar *name;
+  GstValidateReportingLevel level = GST_VALIDATE_REPORTING_LEVEL_UNKNOWN;
+
+  parent = gst_object_get_parent (pad);
+
+  name = g_strdup_printf ("%s__%s", GST_DEBUG_PAD_NAME (pad));
+  level = gst_validate_runner_get_reporting_level_for_name (runner, name);
+
+  g_free (name);
+  gst_object_unref (parent);
+  return level;
+}
+
 static void
 _determine_reporting_level (GstValidateMonitor *monitor)
 {
   GstValidateRunner *runner;
   GstObject *object, *parent;
-  const gchar *object_name;
+  gchar *object_name;
   GstValidateReportingLevel level = GST_VALIDATE_REPORTING_LEVEL_UNKNOWN;
 
   object = gst_object_ref(monitor->target);
   runner = gst_validate_reporter_get_runner (GST_VALIDATE_REPORTER (monitor));
 
   do {
+    /* Let's allow for singling out pads */
+    if (GST_IS_PAD (object)) {
+      level = _get_report_level_for_pad (runner, object);
+      if (level != GST_VALIDATE_REPORTING_LEVEL_UNKNOWN)
+        break;
+    }
+
     object_name = gst_object_get_name (object);
     level = gst_validate_runner_get_reporting_level_for_name (runner, object_name);
     parent = gst_object_get_parent (object);
     gst_object_unref (object);
     object = parent;
+    g_free (object_name);
   } while (object && level == GST_VALIDATE_REPORTING_LEVEL_UNKNOWN);
 
   if (object)

validate/gst/validate/gst-validate-runner.c

@@ -154,8 +154,26 @@ _set_reporting_level_for_name (GstValidateRunner * runner,
   pattern_level->pattern = pattern_spec;
   pattern_level->level = level;
 
-  runner->priv->report_pattern_levels =
+  /* Allow the user to single out a pad with the "element-name__pad-name" syntax
-      g_list_append (runner->priv->report_pattern_levels, pattern_level);
+   */
+  if (g_strrstr (pattern, "__"))
+    runner->priv->report_pattern_levels =
+        g_list_prepend (runner->priv->report_pattern_levels, pattern_level);
+  else
+    runner->priv->report_pattern_levels =
+        g_list_append (runner->priv->report_pattern_levels, pattern_level);
+}
+
+static void
+_replace_double_colons (gchar *word)
+{
+  while (word) {
+    word = strstr (word, "::");
+    if (word) {
+      word[0] = '_';
+      word[1] = '_';
+    }
+  }
 }
 
 static void
@@ -171,6 +189,7 @@ _set_report_levels_from_string (GstValidateRunner * self, const gchar * list)
   split = g_strsplit (list, ",", 0);
 
   for (walk = split; *walk; walk++) {
+    _replace_double_colons (*walk);
     if (strchr (*walk, ':')) {
       gchar **values = g_strsplit (*walk, ":", 2);