[mythtv-users] commflagging and cutlists

[Michael Stucky]

On Sat, Jan 18, 2014 at 4:07 PM, Yan Seiner <yan at seiner.com> wrote:

>
> On 01/18/2014 12:53 PM, Michael Stucky wrote:
>
>  On Sat, Jan 18, 2014 at 3:15 PM, Yan Seiner <yan at seiner.com> wrote:
>
>> I guess I am confused about commflagging.  I always assumed that
>> commflagging and cutlists went hand in hand...  However, I am playing with
>> commflagging and I am coming up with some weird results that tell me I have
>> no idea how commflagging works.
>>
>> First off the standard myth commflag job as run by myth:
>>
>> /usr/bin/mythcommflag -j 31 --noprogress --verbose general --loglevel
>> info --quiet --syslog local7
>>
>> This takes a while; on my system it rolls through at 3-4x the speed of
>> the video, so a 2 hour video takes about a half an hour to flag.
>>
>>
> This flags the places that Myth thinks there are commercials (this will
> take a while unless you have enough processing power to enable commflag
> while recording). This may or may not accurately locate commercials. For
> me, living in the US, this is only used as a starting point for using the
> editor to create a usable cutlist.
>
>
>> But to generate a commercial cutlist this is the command I've seen:
>>
>> mythcommflag: /usr/bin/mythcommflag --chanid 1132 --starttime
>> 20140117230000 --gencutlist
>>
>> It's very fast, takes just a minute or two, and seems to flag
>> commercials.  it also generates the following warning:
>>
>> ****************************************************
>>  WARNING: --gencutlist has been deprecated
>>           use mythutil instead
>> ****************************************************
>>
>> So I've tried this:
>>
>> mythutil --chanid "$chanid" --starttime "$starttime" --gencutlist
>>
>> which also works quickly and generates a cutlist.
>>
>>
> Both of these jobs take the flagged locations from the myth commflag job
> and convert them into a cutlist. And again, you should be careful about
> creating cutlists this way unless you are  sure the commflag job is
> accurate.
>
>  So what is the correct procedure?  Do I run the first commflag job, then
>> the mythutil cutlist job?
>>
>>  I have the commflag job setup to run while myth is recording the
> program. After the recording finishes I go into the editor and
> adjust/add/delete startpoints and endpoints as needed to create an accurate
> cutlist.
>
> Once you tweaked the start/stop points do you run mythutil --gencutlist?
> Or straight into mythtranscode?
>
>
>
> No need to run --gencultilst. Tweaking the start/stop points does that
automatically. So, yes, straight into mythtranscode.
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