[mythtvnz] Commercial detection

[Stephen Worthington]

On Sat, 16 Jan 2010 10:37:20 +1300, you wrote:

>> From: Stephen Worthington <stephen_agent at jsw.gen.nz>
>> Subject: Re: [mythtvnz] Commercial detection
>> To: MythTV in NZ <mythtvnz at lists.linuxnut.co.nz>
>> Message-ID: <b5e0l5hoaq8vdea7vbr7gdcir6hg7o80gn at 4ax.com>
>> Content-Type: text/plain; charset=us-ascii
>>
>> On Tue, 12 Jan 2010 21:21:33 +1300, you wrote:
>>
>>>James Gray wrote:
>>>> Iirc there are a number of different ways it uses to identify them...
>>>> Commercials do have less dynamic range, which makes then seem louder
>>>
>>>http://www.mythtv.org/wiki/Commflagging
>>>It does not seem that volume is used. If you are really keen, you could
>>>write something that does:
>>>http://www.mythtv.org/wiki/How_to_write_a_new_method_of_commercial_detection
>>>
>>>Commercial detection worked really well for me in the past, but recently
>>>(9.10?) it doesn't seem to catch any of them.
>>
>> With Mythbuntu 9.10 I have found that commercial detection only works
>> reasonably on some Sky channels I record as MPEG2 using an S-Video
>> input from my Sky decoder.  It is pretty useless for the FreeviewHD
>> channels (DVB-T).  I am wondering if it is a Mythbuntu 9.10 problem, a
>> MythTV 0.22 problem, or maybe just that the detection does not work
>> well with DVB-T H.264 recordings.
>
>What Commercial Break detection method are you using? I did some
>testing across all of them for the Freeview|HD channels and found
>"Logo Detection" to be the best. "Use all available methods" was
>hopeless, seeming to get the worst matches from all of the different
>types and using those. Logo Detection (or any of the single choices)
>is also much faster to do than "Use all available methods".
>
>Regards,
>David

Sounds like I need to try the different methods again.  The last time
I did that (0.20), "Use all available methods" was the best.  I have
tried setting it to Logo only - I will see how that works out for a
few days.