Problem with Mhegd

[Confused-52]

I am trying to track down a problem which stops recordings on an old Humax PVR. I have observed empirically that a slate advertising a programme always appears at the same time as the fault occurs. To that end I have been tracking down AIT changes etc and arrived at the conclusion that it is being sent in the MHEG. With minor tweaks I have got Red Button running on Debian 11, which is most excellent.

In following up I have been looking for things that use absolute timers but I have hit a problem in decompiling the red button's d/svs_basic.mhg . It crashes on decompiling a timer. I have no experience with lex/yacc and wonder if you could check this out please. I think that this was a change to the syntax called for in es_202184v020401p.pdf when they were putting MHP/AIT in to MHEG prior to, I think, D-Book 8. I can see that those changes are in your textual and asn.1 definitions. I am retired so I only have access to free stuff and reading T.172 (is really complex).
The last line compiled is in Token Group 66 ... SetTimer ( 0 61

NewTimer: Missing TimerValue Set Timer ElementaryAction ActionClass ActionClassSeq ActionSlot ActionSlots TokenGroupItem TokenGroupItems TokenGroupBody TokenGroupClass GroupItem Items Group InterchangedObject Parsing error

The source of the d/svs_basic.mhg was service 4168 (BBC1 North West from Winter Hill) and the copy was downloaded on 28 August 2022 at 15:12

Thanks for all your efforts and those of your predecessor in providing these tools at all and I realise what I am looking for is not really needed for the browser which work ok.

[DirtBagXon]

I have to be honest, I haven't looked at this stuff in years.