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func getBrightnessValue(from sampleBuffer: CMSampleBuffer) -> Float {
  guard
      let metadataDict = CMCopyDictionaryOfAttachments(nil, sampleBuffer, kCMAttachmentMode_ShouldPropagate) as? [String: Any],
      let exifMetadata = metadataDict[String(kCGImagePropertyExifDictionary)] as? [String: Any],
      let brightnessValue = exifMetadata[String(kCGImagePropertyExifBrightnessValue)] as? Float
      else { return 0.0 }

  return brightnessValue
}

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//
//  TransitionComposition.swift
//  MED
//
//  Created by Limon on 7/26/16.
//  Copyright © 2016 MED. All rights reserved.
//

import AVFoundation

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extension AVCaptureDevice {

    /// http://stackoverflow.com/questions/21612191/set-a-custom-avframeraterange-for-an-avcapturesession#27566730
    func configureDesiredFrameRate(_ desiredFrameRate: Int) {

        var isFPSSupported = false

        do {

            if let videoSupportedFrameRateRanges = activeFormat.videoSupportedFrameRateRanges as? [AVFrameRateRange] {

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#!/bin/bash

#  update_build_number.sh
#  Usage: `update_build_number.sh [branch]`
#  Run this script after the 'Copy Bundle Resources' build phase
#  Ref: http://tgoode.com/2014/06/05/sensible-way-increment-bundle-version-cfbundleversion-xcode/

branch=${1:-'master'}
buildNumber=$(expr $(git rev-list $branch --count) - $(git rev-list HEAD..$branch --count))
echo "Updating build number to $buildNumber using branch '$branch'."

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//
//  CyanifyOperation.swift
//  MED
//
//  Created by Limon on 2016/7/19.
//  Copyright © 2016年 MED. All rights reserved.
//

import AVFoundation
import Dispatch

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def generate_modulemap(name, path)
    f = File.new(File.join("#{path}/module.modulemap"), "w+")
    module_name = "#{name}"
    while(module_name["+"])
        module_name["+"] = "_"
    end           
    f.puts("module XB#{module_name} {")
    f.puts("    umbrella header \"#{name}_umbrella.h\"")
    f.puts("    export *")
    f.puts("}")

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Install iTerm2 with Solarized in 2017

Here is the looks and feel of your terminal once the tutorial has been applied on your system:

Install iTerm2

Using Homebrew:

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//
//  main.swift
//  mutablecomposition
//
//  Created by Kevin Meaney on 24/08/2015.
//  Copyright (c) 2015 Kevin Meaney. All rights reserved.
//

import Foundation

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#!/bin/bash

BGreen='\033[1;32m'
Default='\033[0;m'

podName=""
version=""
podspecFilePath=""
homepage=""
httpsRepo=""

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#!/bin/bash
# Link: <https://gist.github.com/jellybeansoup/db7b24fb4c7ed44030f4>
# ./update-version.sh --version=1.2.9 --build=95 --target=MonkeyKing

# We use PlistBuddy to handle the Info.plist values. Here we define where it lives.
plistBuddy="/usr/libexec/PlistBuddy"

BGreen='\033[1;32m'

# Parse input variables and update settings.