Forrest Voight wrote:
I even found someone who had built a "commercial killer" by detecting
patterns in line 21 data that usually indicate the start and end of
commercials. His would mute the volume on the TV when it detected a
commercial, but yours could do whatever you wish.

--from http://captioning.robson.org/articles/general/nv-line21.html


Maybe you could have every method combined (scene change, logo, audio
type change, line 21 detection (above)...)  and if more than 75% of
them signaled a commercial, then remove it.

I'd suggest looking at the code. This (apart from VBI information and audio) is already near enough to what is done.

Cheers,

Allan.
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