[mythtv-users] commercial flagging questions

[bungle]

Chris Pinkham wrote:
> 
> using non-open source codecs, so that could be one reason comskip is
> faster.  I also think it skips frames in order to run faster.  The
> 

According to my latest results, it seems less than twice as fast, so
skipping every other frame (which probably wouldn't miss much) could easily
account for a lot of that.  (Before I knew how to control the job queue I
wasn't really comparing the same benchmarks.)  I've only compared SD, not
HD.


Chris Pinkham wrote:
> 
> captions and the silence detection.  Just thought I'd throw that in
> since this thread may invariably turn into how to improve Myth's
> flagger.
> 

I haven't had nearly as much experience with commflag, but it seems to do a
very good job.  We watch a lot of shows like Mythbusters that have a little
segue bit or whatever it is called, and both do nearly perfectly with those. 
When comskip missed something, it would usually be a spot right at the
beginning or ending of a break, or sometimes one or two in the middle.  I've
had a few cases where commflag missed the mark and it ignored the whole
break, but I'd say most of the time it gets things right.

(I'm not necessarily advocating any of this stuff, just passing along the
info.)
Comskip did have more ways to tune scanning to your signal (based on my
current knowledge of Myth), such as running the GUI or looking at the logs
to see what kind of numbers it generates, and then tuning the ini file with
settings like "max_brightness" and "min_silence".  (Digital STB would
presumably have blacker black than analog cable.)  It also had settings to
control whether the last little bit of preview or credits after the last
break is show or commercial (which is really a per-show thing anyway). 
Frankly, though, I didn't use any of that much, as it was interesting but
not something I wanted to spend all day on.  It doesn't take long to skip a
missed break, and if I wanted to save the show it's pretty easy to edit the
breaks.  The defaults worked well enough usually.

John

Aforementioned settings: http://www.kaashoek.com/files/comskip.ini

Sorry if this is a repost - I use Nabble and the list wasn't taking it for
some reason.  (Perhaps my prior response about close captioning that had
some drug names in it describing what comskip looks for.)
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