[mythtv-users] Commercial Skip Questions

[John P. Poet]

I actually like seeing the first and last second or two of the commercial
block.  Lets me know that it is not accidentally skipping over a section of
the program.  I can see why this would not be desired if the goal is to
permanently cut the commercial blocks from the file, however.

My ReplayTV's commercial skipping works that way.

I am thinking about setting up a MythTV box this weekend.  I will be
interested to compare how well the detection works in Myth compared to the
ReplayTV.

John
--

|         |
+--+  ==  |  John Patrick Poet                 Blue Sky Tours
|  |      |  Director of Systems Development   10832 Prospect Ave., N.E.
|     +---+  john at BlueSkyTours.COM             Albuquerque, N.M. 87112
|     |      Ph. 505 293 9462                  Fx. 505 293 6902

On Sun, 2 Nov 2003, Chris Pinkham wrote:

> > When the commercial detection gets it right (an amazingly high number
> > of times for me, as long as the channel is "clean" on reception), then
> > I find its often off by 3-10 frames... I don't know that this really
> > matters in viewing, but as a perfectionist type, when I go through to
> > double check and edit any mistakes, I find many of the cuts just a
> > shade off... seems like it came close...
> >
> > Just as a thought, is it somehow lagging and tagging where it has
> > gotten to (a fraction of a second later) instead of where it was aiming
> > at?
>
> It's all digital, so there's no lagging involved.  There is some code
> in there to try to eliminate making you watch the blank frames.  Going
> from memory (which may not be 100% accurate), I think it adjusts the
> start mark to the first blank frame before the commercial break and
> the end mark to the first non-blank frame after.  This is done since
> the actual commercial may be 30 seconds long, but there may be 5-7 blank
> frames separating the commercial from the show.  I don't want the code
> to be too sloppy in it's length checking because that gets a lot of false
> positives, so it is stricter on time then post-adjusts the marks.  There
> is a setting that allows you to make the length checking a little looser
> or stricter but I don't think that has anything to do with what you're
> seeing.
>
> Can you let me know what shows this seems to happen on regularly and I'll
> try to take a look sometime?
>
> --
>
> Chris
>
>