Re: Disabling EPG update from air or shift it in time

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On Sat, Jan 31, 2009 at 12:10 PM, Klaus Schmidinger <Klaus.Schmidinger@xxxxxxxxxx> wrote:
On 31.01.2009 06:13, Alex Betis wrote:
> On Fri, Jan 30, 2009 at 11:50 PM, Klaus Schmidinger
> <Klaus.Schmidinger@xxxxxxxxxx <mailto:Klaus.Schmidinger@xxxxxxxxxx>> wrote:
>
>     On 30.01.2009 22:12, Alex Betis wrote:
>     > Hi all,
>     >
>     > Is there any configuration that disables EPG updates received on the
>     > channel?
>     > Or is there a way to shift time of those updates before they are
>     written
>     > to EPG.data?
>     >
>     > The problem is that I have some channels that are transmitted for
>     > different time zones that start transmitting EPG info, but looks like
>     > the EPG is not shifted. There are some other shifted channels that do
>     > transmit the EPG properly, so I believe that's a provider problem.
>
>     The times given in EPG data are supposed to be in UTC, so different
>     time zones
>     are of no interest. If teh times are not in UTC, the providers are
>     messing up.
>
> So how VDR or any other settop box should know that the channel is
> shifted in time?

Beats me!
:)
 


> As an example, 75.0E has NTV and NTV-2, or DTV and DTV-2

Please post the complete channels.conf entries of these channels.
Here it is:

This couple looks like sending the EPG shifted correctly:
HTB;GTSS:12640:vM2O0S0:S75.0E:22000:503:504,505:0:0:100:58:103:0
HTB-3;GTSS:12640:vM2O0S0:S75.0E:22000:501:502:0:0:500:58:103:0
 
This couple looks like not shifting the EPG at all:
DTV-0;GTSS:12640:vM2O0S0:S75.0E:22000:201:202:0:0:200:58:103:0
DTV-2;GTSS:12518:vC78M2O0S0:S75.0E:22000:701:702=eng:0:0:504:86:100:0

This one looks like shifting the EPG in wrong direction (its scrambled, but I've compared the content of EPG.data with official site):
CTC+7;CTC Media:12640:vM2O0S0:S75.0E:22000:401:402:0:2600:400:58:103:0




>     > I use s script that updates those channels from internet, so I don't
>     > mind to disable EPG update received on the channel.
>
>     You can set the "table id" of these events to 0 (see man 5 vdr).
>
> The problem is not with overwriting the data, but appending the wrong
> data for that channel.
> I see both script inserted and DVB transmitted data that are differ.
>
> Is there such "table id" setting per channel and not per EPG entry?

No, this is per EPG event, not per channel.
I'll probably patch the code for now to disable the received EPG processing.

But as I see it, there is an issue even when the EPG is correctly transmitted by a provider, for example:
What VDR will do when there is a change in the program and there is a delay in transmission of some program?
Will it have 2 entries for the same program or update the previous entry?

If EPG time is in UTC, than that's a mystery how should those coupled channels be handled.



Klaus

Thanks.
Alex.
 


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