rtspreal: don't construct config header with uninitialised bytes

Turns out 4 + 4 + 2 + (4 * 2) is actually 18 and not 22. This avoids
a presumably unintentional padding of uninitialised bytes at the end
of the CONT tags chunk, which should be harmless but causes warnings
in valgrind (see #608533 for a test URL).

diff --git a/gst/realmedia/rtspreal.c b/gst/realmedia/rtspreal.c
index 07f1df06cd62aa153f9e0ece9e13c04ffc15459e..0b32b0ccdaecf4656c2691439e8daadfdd4edac8 100644 (file)
--- a/gst/realmedia/rtspreal.c
+++ b/gst/realmedia/rtspreal.c
@@ -324,6 +324,7 @@ rtsp_ext_real_parse_sdp (GstRTSPExtension * ext, GstSDPMessage * sdp,
     ctx->duration = MAX (ctx->duration, intval);
   }
 
+  /* FIXME: use GstByteWriter to write the header */
   /* PROP */
   offset = 0;
   size = 50;
@@ -352,7 +353,7 @@ rtsp_ext_real_parse_sdp (GstRTSPExtension * ext, GstSDPMessage * sdp,
   READ_BUFFER (sdp, "Comment", comment, comment_len);
   READ_BUFFER (sdp, "Copyright", copyright, copyright_len);
 
-  size = 22 + title_len + author_len + comment_len + copyright_len;
+  size = 18 + title_len + author_len + comment_len + copyright_len;
   ENSURE_SIZE (offset + size);
   datap = data + offset;