[mythtvnz] DVB EIT data and DST cut over

[Steven Ellis]

On Tue, September 25, 2007 1:18 pm, Steven Ellis wrote:
>
> Seeing some very odd problems with the freeview EIT data compared with
> Sky's post the DST change over on Sunday
>
> First up most channels 1-4 are off by an hour on freeview.
>
> Secondly TVNZ 6 is off by 2 hours.
>
> Hads - How much do you know about the EIT spec. How is it supposed to
> handle timezones and DST changes.
>
> A simple example is for the Sky data for Monday has Brothers and Sisters
> at
>   <programme start="20071001193000 +1200" stop="20071001203000 +1200"
> channel="1032.dvb.guide">
>
> Freeview has it at
>   <programme start="20071001203000 +1200" stop="20071001213000 +1200"
> channel="1036.dvb.guide">

Ok I've now taken a poke around the EIT stream and it does look like the
freeview data is poked.

The EIT data is supposed to be in UTC, hence from Sunday we are UTC + 13

Brothers and Sisters for next monday shows up as follows which will be off
by an hour as 21:30 NZST

    Event_ID: 6967 (0x1b37)
    Start_time: 0xd466083000 [= 2007-10-01 08:30:00 (UTC)]
    Duration: 0x0010000 [=  01:00:00 (UTC)]
    Running_status: 0 (0x00)  [= undefined]
    Free_CA_mode: 0 (0x00)  [= unscrambled]
    Descriptors_loop_length: 379 (0x17b)

            DVB-DescriptorTag: 77 (0x4d)  [= short_event_descriptor]
            Descriptor_length: 192 (0xc0)
              ISO639_2_language_code:  eng
            event_name_length: 20 (0x14)
            event_name: "Brothers And Sisters"  -- Charset: Latin alphabet

Even better is the following program on TVNZ6 which is showin up as off by
2 hours at 22:30 NZST.

    Event_ID: 7328 (0x1ca0)
    Start_time: 0xd466093000 [= 2007-10-01 09:30:00 (UTC)]
    Duration: 0x0010000 [=  01:00:00 (UTC)]
    Running_status: 0 (0x00)  [= undefined]
    Free_CA_mode: 0 (0x00)  [= unscrambled]
    Descriptors_loop_length: 407 (0x197)

            DVB-DescriptorTag: 77 (0x4d)  [= short_event_descriptor]
            Descriptor_length: 211 (0xd3)
              ISO639_2_language_code:  eng
            event_name_length: 30 (0x1e)
            event_name: "Rolling Stones, Truth And Lies"  -- Charset:
Latin alphabet


Steve

--------------------------------------------
Steven Ellis - Technical Director
OpenMedia Limited - The Home of myPVR
email   - steven at openmedia.co.nz
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