[vdr] [PATCH] time warp

Rainer Zocholl UseNet-Posting-Nospam-74308- at zocki.toppoint.de
Wed Jun 22 00:10:00 CEST 2005


udo_richter at gmx.de(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.



Rainer




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