[mythtv-users] commflag on master very unreliable any more

Brian J. Murrell brian at interlinx.bc.ca
Tue Apr 17 12:02:26 UTC 2012

On 12-04-17 07:48 AM, Mike Perkins wrote:
> These are digital signals, no?

Yes, they are.

> It is quite likely that there are changes
> in format at advert breaks which mean that the commflag software doesn't
> detect the breaks properly. For example: changes between 1080i/p and
> 720i/p,

Not here.  It's all SD.  The dimensions never change.

> aspect ratio, frame rate, bit rate, whatever.

I'm skeptical that any of this is changing.  I'm certainly happy to
entertain testing/demonstrating one way or the other though.

> The adverts
> themselves could easily be a different format to the program which
> precedes and follows it (and each advert in a break could be different,
> as well!).

Again, I'm skeptical but happy to be proven wrong in the interest of
increasing the reliability of commflagging.

> I'm not sure what the answer to this problem is. Of course, one way
> might be to transcode *first*, that way you'd be simulating what a
> PVR-x50 card does, but at least the resulting stream would be all the
> same format.

Right, at quite an expense though.


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