xaphod

import UIKit
import AVFoundation

class VideoWriter {
    fileprivate var writer: AVAssetWriter
    fileprivate var writerInput: AVAssetWriterInput
    fileprivate var pixelBufferAdaptor: AVAssetWriterInputPixelBufferAdaptor
    fileprivate let queue: DispatchQueue
    static var ciContext = CIContext.init() // we reuse a single context for performance reasons