[mythtv-users] Events at the beginning of a recording

[Klaas de Waal]

Hi Jan,

What are your values for the settings RecordPreRoll and WakeUpThreshold?

The RecordPreRoll is configured in mythfrontend with Setup / Video /
General / General (Advanced) / Time to record before start of show (secs).
In my system the RecordPreRoll is 180 seconds.

I am not aware of a GUI option to configure the value of WakeUpThreshold.
If it is not defined then a default value of 5 minutes is used.
If it is defined directly in the database then I think that the value
should be in seconds.
In my system the WakeUpThreshold is not defined so the default is used.

To show the events you can add the "-v network" option for mythbackend.
Then use "grep -e REC_PENDING -e REC_STARTED" to filter the log.

Thanks,
Klaas.


On Sun, 5 Feb 2023 at 13:22, Jan Ceuleers <jan.ceuleers at gmail.com> wrote:

> On 05/02/2023 12:27, Paul Harrison wrote:
> > Can you please show us what events you get and in what order without any
> > other logging so we can see what you mean?
> >
> >
> > It's possible the mythexternrecorder does things differently and messes
> > with the timings?
>
> Here's an example from earlier today. As you requested I removed all
> logging other than the events:
>
> Feb  5 07:55:50 mythtv[1161172]:
> /home/mythtv/system-events/recording-started called with parameters 32
> 20230205075600 by PID 1161172
> Feb  5 07:55:55 mythtv[1161379]:
> /home/mythtv/system-events/recording-pending called with parameters 32
> 20230205075600 -246 by PID 1161379
>
> In this instance the recording pending event arrived 5 seconds after the
> recording started event, but earlier examples (if you ignore all of the
> non-event logging) showed that sometimes the recording pending event
> arrives within a second of the recording started event.
>
> In order to test your theory that mythexternrecorder might have
> something to do with this I also ran a test recording with an HDHR (i.e.
> not using mythexternrecorder). Here are the events:
>
> Feb  5 13:07:50 mythtv[1740022]:
> /home/mythtv/system-events/recording-started called with parameters 10
> 20230205130800 by PID 1740022
> Feb  5 13:07:50 mythtv[1740026]:
> /home/mythtv/system-events/recording-pending called with parameters 10
> 20230205130800 -241 by PID 1740026
>
> So the order is the same in this case, although as described earlier the
> events are less than a second apart.
>
> Here's how the events have been set up:
>
> mysql> select * from settings where value like "Event%"\G
> *************************** 1. row ***************************
>    value: EventCmdLivetvStarted
>     data:
> hostname: dracor
> *************************** 2. row ***************************
>    value: EventCmdPlayChanged
>     data:
> hostname: dracor
> *************************** 3. row ***************************
>    value: EventCmdRecFinished
>     data: /home/mythtv/system-events/recording-finished %DIR% %FILE%
> %CARDID% %CHANID% %STARTTIMEUTC"
> hostname: dracor
> *************************** 4. row ***************************
>    value: EventCmdRecPending
>     data: /home/mythtv/system-events/recording-pending %CARDID%
> %STARTTIME% %SECS%
> hostname: dracor
> *************************** 5. row ***************************
>    value: EventCmdRecStarted
>     data: /home/mythtv/system-events/recording-started %CARDID% %STARTTIME%
> hostname: dracor
> 5 rows in set (0.00 sec)
>
> So as you can see, the "-246" or "-241" passed to recording-pending is
> the SECS parameter.
>
> Thanks, Jan
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