From Newsgroup: uk.tech.digital-tv

Has anyone else found that TVHeadend (Unix PVR software, recording via
DVB-T or DVB-S tuner) occasionally fails to stop recording at the
scheduled stop time?

I've had two recordings, both on BBC Four and both scheduled to stop at
around 0200-0400, which carried on recording until I manually cancelled
them later in the morning - generating 30 GB files ;-)

I don't have Accurate Recording turned on (which uses a signal from the broadcaster to determine when to start and stop, designed to avoid
problems with late-running programmes) because I've found that it often
fails to start recording.

I have a system-wide pre-padding of 5 minutes and post-padding of 15
minutes. I have confirmed that the reported times match the EPG times, allowing for that padding. Unfortunately there isn't an error message in
the log file (in Configuration | Debugging I have Syslog, Debug to
Syslog, Debug Trace low level and Debug libav log ticked): at the time
that recording should have ended, there is nothing - only the hourly EPG database updates:

2025-08-31 02:18:32.002 [ INFO]:epgdb: snapshot start
2025-08-31 02:18:32.082 [ INFO]:epgdb: queued to save (size 3557166) 2025-08-31 02:18:32.082 [ INFO]:epgdb: broadcasts 9254
2025-08-31 02:18:32.082 [ INFO]:epgdb: save start
2025-08-31 02:18:32.187 [ INFO]:epgdb: stored (size 806809)
2025-08-31 03:18:32.002 [ INFO]:epgdb: snapshot start
2025-08-31 03:18:32.095 [ INFO]:epgdb: queued to save (size 3557166) 2025-08-31 03:18:32.095 [ INFO]:epgdb: broadcasts 9254
2025-08-31 03:18:32.095 [ INFO]:epgdb: save start
2025-08-31 03:18:32.217 [ INFO]:epgdb: stored (size 806809)
2025-08-31 04:18:32.006 [ INFO]:epgdb: snapshot start
2025-08-31 04:18:32.105 [ INFO]:epgdb: queued to save (size 3557166) 2025-08-31 04:18:32.105 [ INFO]:epgdb: broadcasts 9254
2025-08-31 04:18:32.105 [ INFO]:epgdb: save start
2025-08-31 04:18:32.219 [ INFO]:epgdb: stored (size 806809)

Recording should have finished at 04:10 (and called a program that I
have written which dumps the pathname, number of reported errors etc to
a text file), but nothing until

2025-08-31 09:17:33.544 [ INFO]:subscription: 0BE9: "DVR: Miss Marple:
4:50 From Paddington" unsubscribing from "106 BBC Four HD", username="" 2025-08-31 09:17:33.545 [ INFO]:spawn: Executing "/srv/ext/Videos/debug/postproc"
2025-08-31 09:17:33.561 [ INFO]:dvr: "Miss Marple: 4:50 From
Paddington" on "106 BBC Four HD": End of program: Completed OK
2025-08-31 09:17:33.578 [ INFO]:spawn: Recording finished at Sun 31
Aug 2025 09:17:33
2025-08-31 09:17:33.578 [ INFO]:spawn: argc 10 2025-08-31 09:17:33.578 [ INFO]:spawn: argv[1] Pathname /srv/ext/Videos/Miss Marple_ 4_50 From Paddington/Miss Marple_ 4_50 From Paddington-20250831-0205-106 BBC Four HD.ts
2025-08-31 09:17:33.578 [ INFO]:spawn: argv[2] Filename
Miss Marple_ 4_50 From Paddington-20250831-0205-106 BBC Four HD.ts
2025-08-31 09:17:33.578 [ INFO]:spawn: argv[3] Title
Miss Marple: 4:50 From Paddington
2025-08-31 09:17:33.578 [ INFO]:spawn: argv[4] Summary
Travelling on the 4.50 from Paddington, Mrs McGillicuddy witnesses a
murder on a passing train - but where is the body? [S]
2025-08-31 09:17:33.578 [ INFO]:spawn: argv[5] Status OK
2025-08-31 09:17:33.578 [ INFO]:spawn: argv[6] Errors / Data Errors 0 / 7
2025-08-31 09:17:33.578 [ INFO]:spawn: argv[7] Creator IP 192.168.1.80
2025-08-31 09:17:33.578 [ INFO]:spawn: argv[8] Start Time
Sun 31 Aug 2025 02:00:00 (1756602000)
2025-08-31 09:17:33.578 [ INFO]:spawn: argv[9] End Time
Sun 31 Aug 2025 04:10:00 (1756609800)
2025-08-31 09:17:33.578 [ INFO]:spawn: Duration 130 min
0 sec

when I manually stopped recording. /srv/ext/Videos/debug/postproc is my program which received command line inputs of various fields from a line

/srv/ext/Videos/debug/postproc "%f" "%b" "%t" "%s" "%e" "%r / %R" "%C"
"%S" "%E"

in Configuration | Recording, Post Processor Command


Normally this works perfectly and has done for about 8 years.

Tvheadend is V4.3-2375~g653bd0400.
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From Newsgroup: uk.tech.digital-tv

NY wrote:

Has anyone else found that TVHeadend [...] occasionally fails to stop recording at the
scheduled stop time?

My F1 autorec stopped working some time ago, and I've not tended to
record much else, so probably wouldn't notice ...

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