Patch for mythframes

This patch modifies mythframes to handle big files.

--- mythframes.c.orig   2006-11-08 19:13:59.000000000 +0000 
+++ mythframes.c        2006-11-08 19:03:44.000000000 +0000 
@@ -52,7 +52,7 @@
   typedef struct seektable_entry
  { 
-   long long file_offset; 
+   double long file_offset;
     int keyframe_number;
  } seektable_entry;