gst/mpegtsparse/mpegtspacketizer.c: Fix problem when empty string is provided.

Original commit message from CVS:
Patch by: Sebastian Pölsterl
* gst/mpegtsparse/mpegtspacketizer.c:
Fix problem when empty string is provided.

2 files changed, 16 insertions, 3 deletions

diff --git a/ChangeLog b/ChangeLog
index 59abd0de..7ad64925 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2008-06-20  Zaheer Abbas Merali  <zaheerabbas at merali dot org>
+
+	Patch by: Sebastian Pölsterl
+
+	* gst/mpegtsparse/mpegtspacketizer.c:
+	Fix problem when empty string is provided.
+
 2008-06-20  Sebastian Dröge  <sebastian.droege@collabora.co.uk>
 
 	* gst/deinterlace2/tvtime/vfir.c: (deinterlace_line_mmxext),
diff --git a/gst/mpegtsparse/mpegtspacketizer.c b/gst/mpegtsparse/mpegtspacketizer.c
index 3b108f99..99d04c72 100644
--- a/gst/mpegtsparse/mpegtspacketizer.c
+++ b/gst/mpegtsparse/mpegtspacketizer.c
@@ -2183,9 +2183,13 @@ convert_to_utf8 (const gchar * text, gint length, guint start,
     }
   }
 
-  new_text =
-      g_convert ((gchar *) sb->data, sb->len, "utf-8", encoding, NULL, NULL,
-      error);
+  if (sb->len > 0) {
+    new_text =
+        g_convert ((gchar *) sb->data, sb->len, "utf-8", encoding, NULL, NULL,
+        error);
+  } else {
+    new_text = g_strdup ("");
+  }
 
   g_byte_array_free (sb, TRUE);
 
@@ -2201,6 +2205,8 @@ get_encoding_and_convert (const gchar * text, guint length)
   guint start_text = 0;
   gboolean is_multibyte;
 
+  g_return_val_if_fail (text != NULL, NULL);
+
   encoding = get_encoding (text, &start_text, &is_multibyte);
 
   if (encoding == NULL) {