[mythtv-users] Recordings start & end 10 seconds too soon, on all channels

Michael T. Dean mtdean at thirdcontact.com
Tue Mar 22 02:33:26 UTC 2016


(fixed top posting)

On 03/21/2016 07:31 PM, steve wrote:
> On Mar 21, 2016, at 7:19 PM, Bill Meek wrote:
>
>> On 03/21/2016 04:07 PM, steve wrote:
>>> My system time is correct to the exact second, so I assume an os level ntp is enabled and working fine.
>>> Ubuntu 14.04 LT
>>> Myth 27.6

What makes you think recordings start and end 10 seconds too soon on all 
channels?

>> Have you changed anything like: Time to record before start of show (secs)
>> in the frontend Setup->Video->General about 4 pages in?
> Thanks, I thought for certain you nailed it...  but unfortunately, it wasn't that one
>    
> Time to record before start of show (secs): 0
> Time to record before past end of show (secs): 1 <-- Did I change this to 1?    I'll set it to 0 now.
>
> Any other ideas?

Are you sure your broadcaster/rebroadcaster is airing shows "to the 
exact second"?  Especially if it's a rebroadcaster and/or if your video 
is going through some intermediate tuner/decoder/..., there may be some 
delay in the actual delivery of the video, which could appear as if 
MythTV were starting and ending shows too early.

Or are you saying that the mythbackend logs show mythbackend starting a 
recording at 10 seconds before the start time (where, there should be a 
slightly early start--though I'm thinking it's more like 2 seconds, 
IIRC) and ending the recording 10 seconds before the end time, based on 
the time stamps in the log?

In other words, you really need to show us some log files to get 
anything other than guesses (albeit, educated guesses). 
https://www.mythtv.org/wiki/Posting_Logs

Mike


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