jamesmacwhite

Converting mkv to mp4 with ffmpeg

Essentially just copy the existing video and audio stream as is into a new container, no funny business!

The easiest way to "convert" MKV to MP4, is to copy the existing video and audio streams and place them into a new container. This avoids any encoding task and hence no quality will be lost, it is also a fairly quick process and requires very little CPU power. The main factor is disk read/write speed.

With ffmpeg this can be achieved with -c copy. Older examples may use -vcodec copy -acodec copy which does the same thing.

These examples assume ffmpeg is in your PATH. If not just substitute with the full path to your ffmpeg binary.

Single file conversion example

lattner

Async/Await for Swift

• Proposal: SE-XXXX
• Authors: Chris Lattner, Joe Groff

Introduction

Modern Cocoa development involves a lot of asynchronous programming using closures and completion handlers, but these APIs are hard to use. This gets particularly problematic when many asynchronous operations are used, error handling is required, or control flow between asynchronous calls gets complicated. This proposal describes a language extension to make this a lot more natural and less error prone.

This paper introduces a first class Coroutine model to Swift. Functions can opt into to being async, allowing the programmer to compose complex logic involving asynchronous operations, leaving the compiler in charge of producing the necessary closures and state machines to implement that logic.

Jeehut

import android.icu.text.MeasureFormat
import android.icu.text.NumberFormat
import android.icu.util.MeasureUnit
import android.os.Build
import java.util.Locale
import kotlin.time.Duration
import kotlin.time.ExperimentalTime
import kotlin.time.days
import kotlin.time.hours
import kotlin.time.milliseconds

pavelbinar

Extract Subtitles From mkv

Instuctions available (moved) at REMOTE ORIGIN website: Extract Subtitles From mkv

groue

Explicit Protocol Fulfillment

Introduction

This pitch introduces of a new keyword in front of declarations: conformance.

The conformance keyword means: "this declaration is intended by the programmer to fulfill a protocol requirement". Its presence is never required. However, when present, the program is ill-formed unless the declaration does match a protocol requirement.

For example:

douglashill

#! /usr/bin/swift

// Douglas Hill, March 2020

/*
 Extracts the most common translations from Apple’s glossary files.

 This script helped with localisation for KeyboardKit (https://github.com/douglashill/KeyboardKit) by leveraging Apple’s existing translations.

 More detail in the article at https://douglashill.co/localisation-using-apples-glossaries/

douglashill

#! /usr/bin/swift

// Douglas Hill, March 2020
// This file is made available under the MIT license included at the bottom of this file.

/*
 Extracts specific localised strings from Apple’s glossary files.

 This script helped with localisation for KeyboardKit (https://github.com/douglashill/KeyboardKit) by leveraging Apple’s existing translations.

douglashill

#! /usr/bin/swift

// Douglas Hill, March 2020

// Prints out translations from Apple’s glossary files matching text in a supplied English .strings file.
// More detail in the article at https://douglashill.co/localisation-using-apples-glossaries/

import Foundation

let stringsSource = URL(fileURLWithPath: "PUT THE PATH TO YOUR ENGLISH .strings FILE HERE")

kieranb662

Xcode Editor Notes

Suggestions

After adding the Extension target to a project

1. Go to the menu bar -> Product -> Scheme -> Edit Scheme.
2. Under the info tab change the executable dropdown menu to "Xcode.app".
3. If you have a testing file add it to the "Arguments Passed On Launch" field under the Arguments tab.

Jeehut

// Copyright © 2020 Flinesoft. All rights reserved.

import Foundation
import SwiftUI

public struct SafeLocalizedStringKey :
    ExpressibleByStringLiteral,
    ExpressibleByStringInterpolation,
    ExpressibleByExtendedGraphemeClusterLiteral,
    ExpressibleByUnicodeScalarLiteral,