oozoofrog’s gists

oozoofrog / selection.swift

Last active July 9, 2016 17:55

	Array has moveForMin.
	It is find min from <from> index <br/>- from was bad choice. i thought -
	<br/>and move to <moveTo>


	```objc
	extension Array where Element: Comparable{
	mutating func moveForMin(offset: Int = 0, moveTo to: Int) {
	let subArray = self[offset..<self.count]
	guard let minValue = subArray.min(isOrderedBefore: <) else {

oozoofrog / CGPathFromString.swift

Last active July 10, 2016 12:43

	import UIKit

	@IBDesignable
	class CharacterView: UIView {
	let pathLayer = CAShapeLayer()

	override func didMoveToSuperview() {
	if nil != superview {
	if pathLayer.superlayer != self.layer {
	self.layer.addSublayer(pathLayer)

oozoofrog / ArrayOperators.swift

Last active July 10, 2016 09:27

	func -<T: Equatable> (lhs: Array<T>, rhs: Array<T>) -> Array<T> {
	return lhs.filter({ (lv) -> Bool in
	return false == rhs.contains(lv)
	})
	}

	func \|<T: Equatable> (lhs: [T], rhs: [T]) -> [T] {
	return lhs + rhs.filter({ (rv) -> Bool in
	return false == lhs.contains(rv)
	})

oozoofrog / file0.m

Created July 18, 2016 07:05

Custom operator for OptionSetType ref: http://qiita.com/DevLife1978/items/c66abd557e8b465728d3

	func -=<O: OptionSetType where O.RawValue == UInt32>(inout lhs: O, rhs: O) {
	lhs = O(rawValue: lhs.rawValue ^ rhs.rawValue)
	}
	func +=<O: OptionSetType where O.RawValue == UInt32>(inout lhs: O, rhs: O) {
	lhs = O(rawValue: lhs.rawValue \| rhs.rawValue)
	}
	func +<O: OptionSetType where O.RawValue == UInt32>(lhs: O, rhs: O) -> O {
	return O(rawValue: lhs.rawValue \| rhs.rawValue)
	}
	func -<O: OptionSetType where O.RawValue == UInt32>(lhs: O, rhs: O) -> O {

oozoofrog / comparable_switch_case_pattern.swift

Last active July 29, 2016 06:29

	protocol PatternComparable {}

	struct Pattern<C: Comparable>: PatternComparable {
	let op: (lhs: C, rhs: C) -> Bool
	let to: C
	func compare(from: C) -> Bool {
	return op(lhs: from, rhs: to)
	}
	}

oozoofrog / Castable.swift

Last active August 20, 2016 12:03

freeing Unsafe<Mutable>Pointer casing


	protocol Castable {}

	protocol UnsafePointerProtocol: NilLiteralConvertible {
	associatedtype Memory
	init(nilLiteral: ())
	init<Memory>(_ from: UnsafeMutablePointer<Memory>)
	init<Memory>(_ from: UnsafePointer<Memory>)
	var memory: Memory { get }
	func mutable<M>() -> UnsafeMutablePointer<M>

oozoofrog / file0.swift

Last active September 4, 2016 07:08

FFmpeg 3.xで新しく追加されたAPIの分析。 ref: http://qiita.com/funcodes/items/20b7c78723c6d1c4a958

	defer {
	avcodec_send_packet(avctx, NULL)
	while true {
	if AVERROR_EOF == avcodec_receive_packet(avctx, frame) {
	break
	}
	}
	}
	while 0 <= av_read_frame(avctx, packet) {
	// avcodec_decode_video2[audio4](...)を下のコードに変更します。

oozoofrog / file0.txt

Last active September 4, 2016 07:25

AVFrameのtupleのデータをArrayで変換 ref: http://qiita.com/funcodes/items/7b91c6b740f42ea66a04

	typedef struct AVFrame {
	...
	uint8_t *data[AV_NUM_DATA_POINTERS]; // AV_NUM_DATA_POINTERS = 8
	...

oozoofrog / file0.txt

Last active September 5, 2016 03:08

FFmpeg->AVFrame(Audio)->AVAudioEngine再生のやり方。+ Accelerateフレームワークの能力も借ります。 ref: http://qiita.com/funcodes/items/87dc9981e74ba2b79b2b


	let audioContext: UnsafeMutablePointer<AVCodecContext>

	// プレイするサウンドの基本設定
	let audioFormat: AVAudioFormat(
	commonFormat: .pcmFormatFloat32,
	sampleRate: Double(audioContext.pointee.sample_rate),
	channels: 2, // サウンドシステムのoutputチャンネルを超えたらクラッシューが発生されます。
	interleaved: false)

oozoofrog / convert.sh

Last active October 10, 2016 14:31

multiple codecs and formats convert script with ffmpeg

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