[mythtv-users] Best options for commercial detection in Australia

Anthony Giggins seven at seven.dorksville.net
Sun Jul 16 11:24:31 UTC 2017


On 15 July 2017 at 21:54, evade. <evade at internode.on.net> wrote:

> On 15/07/17 21:43, Mark Perkins wrote:
>
>> On 15 July 2017 8:33:11 pm evade. <evade at internode.on.net> wrote:
>>
>> Hello,
>>>
>>> I've used MythTV for about 10 years and although Australian free-to-air
>>> TV networks are known for difficult commercial detection, MythTV used to
>>> work really well a few years ago.
>>>
>>> Do any Australians have Commercial Detection working well and could they
>>> please let me know what methods they use for which channels?
>>>
>>>
>>> Aside from the obvious things, like turning off commercial detection on
>>> commercial-free ABC, I've found that I have to use the 'strict
>>> commercial detection' option to prevent problems.
>>>
>>> For example in AFL games the network goes to an Ad break after a goal is
>>> scored.  If another goal is scored within 30 seconds and the network
>>> goes to another Ad break MythTV was putting them all together and
>>> skipping the game time in between.
>>>
>>> Without the 'strict commercial detection' option I've also had other
>>> issues with parts of a program being cut with the Ads.
>>>
>>>
>>> I've not experimented yet, but I get the impression that SBS is less
>>> sneaky about their Ad breaks and one of the simpler detection methods
>>> might suffice.
>>>
>>> I've had no consistent success with Nine, Seven or Ten.
>>>
>>>
>>> Thanks!
>>> evade.
>>>
>>> _______________________________________________
>>>
>> What version mythtv are you running? IIRC user faginbagin identified an
>> issue with how some commflag technical parameters were being calculated /
>> handled and developed a series of patches to remedy. But I don't recall if
>> they got pushed to fixes or not. If they did it was probably only to
>> fixes/0.28, maybe.
>>
>> I use the silence detection script (Australian FTA Dvb-t)
>> https://www.mythtv.org/wiki/Commercial_detection_with_silences
>>
>> It seems to work reasonably well on movies (maybe 75%). Not so great on TV
>> series particularly channel 7.
>>
>>
> Thanks again Mark!
>
> That script is promising, but it looks a little complex to implement.
>
> I see it's a few years old, yet hasn't been included with MythTV yet. Is
> that a bad thing?
>
>
> You're right, I actually have an older version currently on our main TV
> (0.27.6+fixes20170114) stuck on mythbuntu 14.04.  However I've been writing
> questions here as I'm building a new MythTV box which has 0.28.1-3
> (2017-04-24).
>
> evade.
>
>
Another vote for silence detection it works great.

just make sure the australian presets file matches the new channel names
and just remember you only have to set it up once :)

https://www.mythtv.org/wiki/Commercial_detection_with_silences#Australian_Channel_Presets

Cheers,

Anthony
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