Am Mittwoch 22 Juni 2005 00:10 schrieb Rainer Zocholl: > udo_richter@xxxxxx(Udo Richter) 19.06.05 16:40 > > >Klaus Schmidinger wrote: > >> Isn't all that data protected by CRC32 checksums? > >> How could "garbage" get in there? > >> > >> Maybe somebody should try to find out why that "garbage" > >> is produced in the first place... > > > >I've seen this - though at least one year ago - with bad reception due > >to bad weather. For half an hour, the system time was jumping back and > >forward like crazy, starting and stopping some timers. Luckily, all > >timers were repeating, so none of them was gone after reception was > >back. > > So: Who is doing the CRC checks? > Maybe it's turned off or only an error bit is set but nobody > cares about in further processing? (Maybe the cause for > "unkown picture type" too?) > > It's very unlikely that garbage can so often pass a CRC32 check. The TDT is not specified to contain a CRC32 checksum. All larger tables have this, NIT, EIT, SDT, also TOT. The "small" ones TDT and RST have no checksum. Marcel > > > > Rainer > > > _______________________________________________ > vdr mailing list > vdr@xxxxxxxxxxx > http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
