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dropouts with skystar 2 & pid statistics

Posted: Sun Jul 01, 2007 3:22 pm
by butterface
Sometimes I get dropouts (also in recordings) with SDK and Direct driver, also when using other DVB Viewer Apps. Then when looking into PID statistics there is a "Con. Error". What is a "Con. Error"?

Encountered with B2C2 SDK driver, demultiplexer statistics:
Sometimes there is a pid "0xffff" listed but PIDs are only 13 bits wide (max 0x1fff). Is this a possible bug of DVB Dream?
Specific valid PIDs are listed serveral times with different handles occasionally.

I assume my card is not working properly and skips or returns broken TS packets. I'm also installed a cooler and a fan to cool down tuner and B2C2 CPU but it doesn't help.

Has anyone experienced the same dropout problem using a skystar 2?

Posted: Sun Jul 01, 2007 5:28 pm
by genpix
All packet types come with an index number inside.
Next packet of the same type has index incremented by 1.
If you lost one packet (due to error in transmission) the next packet would have "wrong" index.
Looking at the index one can count how many packets were lost.

The weaker the signal the higher CE number.

What signal strength does your card report?

Posted: Mon Jul 02, 2007 6:31 am
by butterface
So it means "Continuity Error" probably.

Level is about 40% to 70% normally, but it has never reached 70% ever. I have 50% to 60% most of the time. The stream looks also okay for a level at 28%.
The dropouts appear sporadic, sometimes 5 times a hour, sometimes once in 4 hours. Only single packets are missing as displayed in PID statistics.
I've not realized any problems with a normal TV and DVB-S receiver.

It looks like high bitrate channels are much more affected than low bitrate channels.