[mythtv-users] commflagging golf

[Mark Perkins]

On 8 April 2017 1:51:04 PM Jerome Yuzyk <jerome at supernet.ab.ca> wrote:

> I watch golf. I often notice that when there's a shot of the ball against a
> blue sky, like off a tee shot, there's a commercial start detected.
>
> Just curious: why would that be?
>
> --
Mythcommflag has a few indicators it looks for. IIRC one is a short period 
of blank (blank, not necessarily black) screen which often occurs on 
transitions. The short wishy washy answer is that a near solid single 
colour frame is considered blank so an all sky picture probably triggers 
the blank detect. The real answer requires the use of concepts like max 
luma and min luma and what not and is probably best read direct from the 
wiki at https://www.mythtv.org/wiki/Mythcommflag#Settings_Descriptions

You can alter which parameters mythcommflag looks for if you wanted to try 
and fine tune it the main parts being blank detection, scene detection and 
channel logo detection.