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tion-low/HostTime.swift

Created May 15, 2019 05:16
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HostTime.swift
import UIKit
import AVFoundation
var tb = mach_timebase_info() // イニシャライザ
mach_timebase_info(&tb) // こっちは関数呼び出し
let tsc = mach_absolute_time()
let t = Double(tsc) * Double(tb.numer) / Double(tb.denom) / 1000000000.0
let seconds = AVAudioTime.seconds(forHostTime: tsc)
let cmtime = CMTime(seconds: seconds, preferredTimescale: 1000000000)
print(cmtime)
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