> I've been using the "All" method since I upgraded to .17, and I still > occasionally see short false positives (9 or 11 seconds). I think the > idea of a user setting for min/max commercial break length would be kind > of handy.
This can occur even with ALL if the following are true: * You're using software encoding * You watch the recording before the post-recording mythcommflag job is completed. When using software encoding, Myth flags blank frames during the recording process. Then when the recording finishes, it does a quick routine to generate the commercial break list from the blank frames. Then a job is queued up in the JobQueue to run mythcommflag which runs the full scan on the video and uses the other detection info to get better detection. > Also, I see from the setup menu that it uses blank frame, scene change, > and logo detection (and combinations) to find the breaks. Are any other > methods used (and just not listed)? Specifically, I was thinking of > volume level -- a lot of channels will ratchet up the volume during a Currently the only other thing that ALL uses is aspect ratio change detection and letter/pillarbox detection. I plan on adding more detection methods, some related to sound, but I am sidetracked on a few other things right now. I'm trying some better edge logo detection code right now since the current code doesn't work as well for some logos. Once that is working, I plan on using part of that code to detect the rating symbols that stations in the U.S. have to display. Lots of other things could be used as well. > That being said, the commercial detection in MythTV is very good ... one > of the [many] reasons I don't like watching regular TV any more! Thanks. -- Chris
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