[mythtv] Commercial Flagging Idea

[Michael T. Dean]

Mike Benoit wrote:

>On Wed, 2005-07-06 at 09:29 -0400, James Armstrong wrote:
>  
>
>>>Myth currently supports:
>>>   1) Blank frame
>>>   2) Scene change
>>>   3) Blank frame with scene change
>>>   4) Logo (the little channel identifier logo)
>>>   255) All (combines all the above--basically blank frame with scene 
>>>change and logo)
>>>
>>Does the current commercial detection (Logo method) detect not only the 
>>channel logo, but the TV Rating logo?
>>
No.

>>I have noticed that most of the 
>>shows in the US show the TV rating immediately after the commercials 
>>when the show resumes playing. It stays on the screen for about 5 to 10 
>>seconds then goes away. It won't help with detecting the beginning of 
>>the commercial but it would be a great way to know when the commercials end.
>>    
>>
Perhaps that's why it's not currently used (not enough benefit to 
justify the effort).

>One thing I've started to notice lately is some channels put a random
>delay on when the logo appears after a commercial. (not sure if they
>remove the logo randomly before the commercial starts though)
>
>This totally throws off the commercial flagger.
>
>Perhaps a simple:
>
>Find logo, rewind to nearest blank frame, if less then half the total
>commercial length, seek there instead?
>  
>
Sounds a bit like the "All" method (not quite the same algorithm, but 
well worth giving it a try...).

Mike