small fixes

Original commit message from CVS:
small fixes

gst/gdp/gstgdpdepay.c

@@ -19,7 +19,7 @@
 
 /**
  * SECTION:element-gdpdepay
- * @see_also: videorate, ffmpegcolorspace
+ * @see_also: gdppay
  *
  * <refsect2>
  * <para>

gst/gdp/gstgdppay.h

@@ -52,6 +52,10 @@ struct _GstGDPPay
   gboolean sent_streamheader; /* TRUE after the first streamheaders are sent */
   GList *queue; /* list of queued buffers before streamheaders are sent */
   guint64 offset;
+
+  gboolean crc_header;
+  gboolean crc_payload;
+  GstDPHeaderFlag header_flag;
 };
 
 struct _GstGDPPayClass