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Does every frame of video (or live view) on a DSLR count as a shutter actuation?

I am concerned about the amount of actuation used when taking a video on my Canon EOS 550D. I intend to use my 550D for heavy usage of video shooting.

How can I determine how much actuation is used for video taking?

This question may be relevant to How can I get the actuation count for Canon EOS 550D/550D?