[mythtvnz] reasonably effective commercial detection silence.preset for NZ?

[Karl]

I hear what you are saying and I agree. When I saw my CPU going through the
roof I saw the job running as ad detection and when I disabled it my CPU
went right down to normal. Strange. SO I have always thought this was a CPU
intensive thing,. I noted the jobs ran after the recording completed and it
redid those until I disabled the detection. Anyways I am happy enough to
give it another go now as I am setting up new mythtv on 18.04.

On 7 May 2018 at 15:19, Nick Rout <nick.rout at gmail.com> wrote:

> Silence detection is not CPU intensive as it involves no video decoding.
>
>
> On Mon, May 7, 2018 at 2:59 PM, James Walker <james.walker.nz at me.com>
> wrote:
>
>> The tooling I have setup is per this wiki page:
>> https://www.mythtv.org/wiki/Commercial_detection_with_silences
>>
>> The processing seems to be reasonably light weight and pretty fast. I do
>> have a quad core backend master sever that just shrugs when 2 such jobs are
>> processing.  However on older kit I can see how it might be more pushed.
>>
>> As to effectiveness - the wiki page “advertises” it as working/workable
>> in NZ, hence my question to the community.  However having analysed some of
>> the shows on various channels I can see how tough it will be to get
>> consistent “okay” results. The methods for fading between shows and
>> commercials are all over the place.
>>
>> I’ve been using the skip facilities for years so no issue returning to
>> that.  I was just hoping to achieve some processing magic  :-)
>>
>> Cheers,
>> James.
>>
>> On 7/05/2018, at 2:46 PM, Karl <skooobie at gmail.com> wrote:
>>
>> Yep. The commercial detection is very processed hungry. And as Stephen
>> mentions as we have skip ability (which we can fine tune too) then no real
>> need anyway.
>>
>> On Mon, 7 May 2018, 14:17 Stephen Worthington, <stephen_agent at jsw.gen.nz>
>> wrote:
>>
>>> On Mon, 7 May 2018 08:35:23 +1200, you wrote:
>>>
>>> >On 06/05/18 20:16, Stephen Worthington wrote:
>>> >> I have
>>> >> just given up and turned it off so as not to waste all the CPU cycles
>>> >> and electricity it was using, as it never worked.
>>> >Where do you turn it off?
>>>
>>> Mythtv-setup > General > Job Queue (Backend-Specific) > Allow advert
>>> detection jobs
>>>
>>> MariaDB [mythconverg]> select * from settings where
>>> value='JobAllowCommFlag';
>>> +------------------+------+----------+
>>> | value            | data | hostname |
>>> +------------------+------+----------+
>>> | JobAllowCommFlag | 0    | mypvr    |
>>> +------------------+------+----------+
>>> 1 row in set (0.00 sec)
>>>
>>> I also changed my recording templates to turn off the option in there
>>> that creates the mythcommflag job, and used SQL to do the same in all
>>> my recording rules.
>>>
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