[mythtv-users] Problem with Hard and Soft Padding on recordings

[Anthony Giggins]

On 9 February 2011 11:00, Nick Morrott <knowledgejunkie at gmail.com> wrote:

> On 8 February 2011 22:20, Anthony Giggins <seven at seven.dorksville.net>
> wrote:
> >
> >
> > On 8 February 2011 23:00, David Watkins <watkinshome at gmail.com> wrote:
> >>
> >> > Yes I believe they are both set to 600
> >> >
> >>
> >> Um - isn't that your answer then?  10 mins padding - 30 minutes
> >> recording - 10 minutes padding.
> >>
> >>
> >> Maybe before you generally had some adjacent recordings that caused
> >> the soft padding to be overriden?
> >>
> >
> > I wasn't aware that the soft padding was in addition to any hard padding
> I
> > was under the impression that Hard padding over rides Soft padding.
>
> Hard padding does not override soft padding, as they are used for
> different purposes.
>
> Hard padding is _always_ added to a programme's start/stop times when
> the scheduler runs, and is why it is a specified on a per-rule basis.
> This can and will lead to conflicts if you always need a scheduled
> recording to start early (or stop late) and do not have sufficient
> tuners. This scenario will produce the largest number of conflicts
> when attempting to record one-off back-to-back programmes that cannot
> be rescheduled to a later time or alternative tuner.
>
> Soft padding _may_ be added to a scheduled recording if - and only if
> - the specified amount of soft padding can be recorded before the
> tuner is required again for another scheduled recording. It occurs
> _after_ scheduling has occurred and although it is a global option (it
> will be used for all scheduled recordings if possible) you are never
> guaranteed that it will be included.
>
> If both hard and soft padding are in effect for a particular
> recording, you will see the worst-case-scenario* when:
>
> i) the scheduler includes hard padding;
> ii) additional soft padding can also be recorded; and
> iii) the programme's listed duration is small
>
> This is what you reported seeing in your initial post - your 10 minute
> recording was being extended in length by 400% to 50 minutes due to
> the summative effects of your hard and soft padding settings.
>
> * where worst-case-scenario means the highest proportion of padding
> compared to a programme's listed duration
>
> HTH,
>
> Cheers,
> Nick
>
> --
>

Thanks for the confirmation Nick I'll update the wiki to reflect this
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