rtputils: Add debug category

Use rtputils specific debug category instead of "default"

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/9070>

subprojects/gst-plugins-good/gst/rtp/gstrtputils.c

@@ -17,8 +17,33 @@
  * Boston, MA 02110-1301, USA.
  */
 
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
 #include "gstrtputils.h"
 
+#ifndef GST_DISABLE_GST_DEBUG
+#define GST_CAT_DEFAULT ensure_debug_category()
+static GstDebugCategory *
+ensure_debug_category (void)
+{
+  static gsize cat_gonce = 0;
+
+  if (g_once_init_enter (&cat_gonce)) {
+    gsize cat_done;
+
+    cat_done = (gsize) _gst_debug_category_new ("rtputils", 0, "rtputils");
+
+    g_once_init_leave (&cat_gonce, cat_done);
+  }
+
+  return (GstDebugCategory *) cat_gonce;
+}
+#else
+#define ensure_debug_category() /* NOOP */
+#endif /* GST_DISABLE_GST_DEBUG */
+
 typedef struct
 {
   GstElement *element;