Trying to understand CMTime and CMTimeMake

1) CMTimeMake(1,10) actually means a value of 1 and a timescale of 10. They are a numerator and denominator, so it is 1/10 of a second, not 1 second.

2) The result will be like CMTimeMake(2, 10), which is 2/10ths of a second.

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