[rygel-gst-0-10-plugins] Prevent critical when saving video item

[Jens Georg <jensgeorg src gnome org>]

commit f7a33db1426d5152bf3a94418422ccc7dbd2fa58
Author: Jens Georg <mail jensge org>
Date:   Sat Feb 16 15:35:12 2013 +0100

    Prevent critical when saving video item

 src/media-export/rygel-media-export-media-cache.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)
---
diff --git a/src/media-export/rygel-media-export-media-cache.c 
b/src/media-export/rygel-media-export-media-cache.c
index f34736a..b767457 100644
--- a/src/media-export/rygel-media-export-media-cache.c
+++ b/src/media-export/rygel-media-export-media-cache.c
@@ -1356,7 +1356,12 @@ rygel_media_export_media_cache_save_metadata (RygelMediaExportMediaCache  *self,
     if (RYGEL_IS_VIDEO_ITEM (item)) {
       RygelVideoItem *video_item = RYGEL_VIDEO_ITEM (item);
 
-      g_value_set_string (&(values[5]), rygel_video_item_get_author (video_item));
+      const char *author = rygel_video_item_get_author (video_item);
+      if (author) {
+        g_value_unset (&(values[5]));
+        g_value_init (&(values[5]), G_TYPE_STRING);
+        g_value_set_string (&(values[5]), author);
+      }
     }
   }
   inner_error = NULL;