[mythtv-users] Daddy, what's a commercial

Daniel Walton dwalton at cisco.com
Fri Jan 12 19:37:54 UTC 2007

On Fri, 12 Jan 2007, John Drescher wrote:

> > I was initially using Blank Frame Detection.  It was very fast, but I
> > found the accuracy unacceptably bad.  Part of this is because I do watch
> > a lot of shows with fade-to-black transitions.  ("Intervention" on A&E
> > is a good example of a show where Blank Frame Detection fails miserably.)
> >
> I have used this method for over a year now and I find that it is good
> on some shows and bad on others. One example is a soap opera that I
> record 5 days a week for my girlfriend requires manual editing for the
> commercials more than 75% of the time and I also have to be careful as
> it has been known to delete several minutes of the show. However when
> I record a show on animal planet there usually is very little or no
> editing necessary.
> > I switched to using "All Methods" and I've been much happier.  It's
> > slower, though.  On my VIA M10000 system it runs barely faster than
> > realtime, around 36 fps.  I still rarely have more than a few shows in
> > the job queue, though, so for my purposes it's fast enough.  (The
> > exception is if someone accidentally leaves the frontend on the "Watch
> > Recordings" screen.  That little preview window consumes a surprising
> > amount of CPU, leaving little for background jobs.)
> I'll check into that. Thanks for the info.

If you are running svn you may also want to give the Experimental detection
method a try.  It currently uses logo detection and blank frame detection but
there are additional methods in the works.


More information about the mythtv-users mailing list