[mythtv-users] Live TV Program Change Over

[Scott and Nicole Harris]

>On 27/03/12 14:40, Tom Bongiorno wrote:
>> On Tue, Mar 27, 2012 at 8:38 AM, Scott and Nicole Harris<
>> snharris99 at live.com> wrote:
>>>>> Scott& Nicole Harris wrote:
>>>>> That looks like it, assuming "transitions" are the same as what I'm
>>>>> describing as changing from one program to another on the same channel
>>>>
>>>> And I often (Most of the time) see this on .23 as well. Using an HDHR.
>>>
>>> Yeah, I've had it all the way back to around 0.23 as well. I'm also using
>>> an HDHR, but I'm not sure that it's the tuner as much as it's the way Myth
>>> handles Live TV as a string of individual recordings, requiring some
>>> intensive work to stop and start each recording at each program break. I
>>> don't recall when Myth went from the ring buffer method of Live TV to the
>>> string of recordings method (not that I am suggesting in any way shape or
>>> form that Myth should go back), but it was around that time, which would be
>>> why we started seeing it back then.
>>>
>>
>> I have been experiencing this behavior since I upgraded to .24. Mind you,
>> prior to .24 I was only using the DVR functionality and not LiveTV.
>>
>I thought that changing files on the half-hour was the original LiveTV 
>behaviour, and that this was replaced in a later version by a method that 
>changed files at the scheduled end of each program?
>
>This would make sense, since once you tune to a channel myth knows which program 
>is running, and knows exactly when it is going to end.
>
>Are you sure this behaviour is program related? Does it happen on the hour and 
>half-hour, or does it happen 30 mins after you switched to LiveTV and every 30 
>mins after? The latter is what I would expect if it is a LiveTV phenomenon.
>
>-- 
>
>Mike Perkins

IIRC Live TV used to use a ~15 minute ring buffer, which, once filled would clear the beginning of the ring to make room for new data at the end of the ring. Somewhere around 0.23 (again, IIRC) Live TV was changed to when you started it, it started an actual recording flagged as LiveTV (and stopped the recording when you ended the Live TV session), then at each program change (either due to schedule on the current channel, or by channel change) it stopped the current recording and started a new one. 


Anyways, to answer your actual question.  I am 99.99% sure it is program related, it happens almost 100% of the time (the "freeze" is 100%, the actual crash to Myth menu sometimes gets avoided) when one program ends and a new program begins on the same channel while watching Live TV. It is channel schedule related, not time related, in my example, my wife happened to be watching late night sitcom reruns which are all 30 minute shows which is why she saw it happening "every 30 minutes".