vdr libsi patch for cyfra+ epg

--- libsi/si.org    2010-02-13 11:31:52.000000000 +0100
+++ libsi/si.c    2010-11-27 12:32:41.000000000 +0100
@@ -346,6 +346,14 @@
    // "ETSI EN 300 468" the default character set is ISO6937. But unfortunately some
    // broadcasters actually use ISO-8859-9, but fail to correctly announce that.
    static const char *CharsetOverride = getenv("VDR_CHARSET_OVERRIDE");
+
+   // Fix for PL many channels using ISO6937 while specifying different encoding...
+   if (strcspn((const char*)buffer,"\xC1\xC2\xC3\xC4\xC5\xC7\xC8\xCB\xCD\xCE\xCF\xE8\xF8") < strlen((const char*)buffer))
+      return cs;
+   // Below test for characters found in ISO-8859-2
+   else if (strcspn((const char*)buffer,"\xA1\xA3\xA6\xAC\xAF\xB1\xB3\xB6\xBC\xBF\xC6\xCA\xD1\xD3\xE6\xEA\xF1\xF3") < strlen((const char*)buffer))
+      return CharacterTables2[2];
+
    if (CharsetOverride)
       cs = CharsetOverride;
    if (isSingleByte)