typefindfunctions: fix off-by-one in webvtt typefinder

We're also checking the byte after the WEBVTT magic.

diff --git a/gst/typefind/gsttypefindfunctions.c b/gst/typefind/gsttypefindfunctions.c
index 839ee4f..2bbb88d 100644 (file)
--- a/gst/typefind/gsttypefindfunctions.c
+++ b/gst/typefind/gsttypefindfunctions.c
@@ -4790,7 +4790,7 @@ webvtt_type_find (GstTypeFind * tf, gpointer private)
 {
   const guint8 *data;
 
-  data = gst_type_find_peek (tf, 0, 9);
+  data = gst_type_find_peek (tf, 0, 10);
 
   if (data == NULL)
     return;