[mythtv] Error: Wrong PMT and Failed CRC check after UK freeview network changes

Stuart Morgan stuart at tase.co.uk
Wed Nov 25 14:48:20 UTC 2009

On Wednesday 25 Nov 2009 14:36:32 Roger James wrote:
> After much logging and looking at the code and my database setup, I can
> only conclude that this is related to the CRC errors. I think the wrong
> PMT error is a red herring as I have not seen it again for a couple of
> days. However there a lots of CRC errors and service 4287 still does not
> get any EIT data. dvbsnoop does not report any crc errors. I have line
> of sight to the transmitter which is less than a mile away so
> transmission errors are unlikely.  The StreamID of 0x70 is not a valid
> PES stream ID as far I can see all valid ones should have the top bit
> (0x80) set and the received CRC increasing by one on each packet looks
> very suspicious. Googling for the Failed CRC error reveals a lot of
> cases where the stream ID of 0x70 is reported.

The CRC errors are unrelated. 0x70 is an unimportant stream which has no CRC 
hence the errors, but they don't explain the issue you are seeing.

A dump of your channel and dtv_multiplex tables to pastebin.ca might be 
Stuart Morgan

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