[mythtv-users] Commercial skipping

mooshie nsmith5 at umbc.edu
Mon Jun 26 00:00:39 UTC 2006

Hey Brian,

On Sun, 2006-06-25 at 15:58 -0600, Brian Wood wrote:
> On Jun 25, 2006, at 3:04 PM, mooshie wrote:
> > On Sun, 2006-06-25 at 16:39 -0400, Steven Adeff wrote:
> >> On 6/25/06, mooshie <nsmith5 at umbc.edu> wrote:
> >>> For commercial skipping, does the "all" option mean that _every_
> >>> condition "blank screen, logo, scene change, etc" must be met, or  
> >>> just
> >>> one of those conditions? The first would mean that "all" is very
> >>> restrictive, while the latter would mean "all" is very liberal..  
> >>> if I
> >>> had a guess I would guess that it's the latter
> >>
> >> It means all methods are used to calculate the most likely commercial
> >> start/stop point. Each method is used in scanning and the positions
> >> each method finds are given points according to the likelyhood of  
> >> that
> >> position being a commercial cut point, the positions with the most
> >> points are then flagged.
> >
> > Cool answer, thanks. If commercial obfuscation is used to trick DVR
> > programs, is that usually more on the local content provider side, or
> > the channel side, or both? I'm trying to twiddle down the reasons why
> > recording Deadliest Catch on the Discovery channel isn't flagging
> > commercials, and if it's a settings issue, or if the Discovery channel
> > is just good at confusing DVR programs.. I know myth isn't perfect at
> > commercial removing.
> I sometimes watch that program and Myth seems to do as good a job  
> detecting commercials as with any other show, certainly better than 90%.
> There are network commercials (inserted by the Discovery Channel  
> itself) and local spots, inserted by your local cable company or  
> satellite carrier, if on cable these are usually for local businesses.
> Is it one particular type that you are having trouble detecting ?? If  
> it's the network spots I'd think we would all be having the problem,  
> but the locally-inserted commercials are usually the easiest to detect.

That makes sense, although Myth does not flag any of the commercials at
all, so it makes me think that it is a configuration problem. I've spent
a few hours going through the menu setup to make sure that all
commercial settings are ON (the "Automatically flag commercials" setting
is on, as with "All" for commercial detection, along with the ) but no
luck (I've tried to record a few different shows on a few different
channels as well).

Is there something like a per-group tv setting that I'm missing? The
recording options seem to be for every group, and I haven't seen
anything for a per-group basis.  

I know commercial detection does work in general though, because at one
time in the past it worked, and I believe it was on Deadliest Catch (I
was using a different configuration that I'm not using now, but I don't
know what it was =[ )

> BTW - The Big Networks are going crazy about that show. It is  
> consistently showing up in the top 10, and is produced by a "cable  
> network" (shudder) with a relatively low budget compared to the Major  
> networks.

That's awesome.. it's a great show, as "reality tv shows" go. It's
exciting because the dangers they face are real, and not cooked up by a
production crew.


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