git.r.bdr.sh - rbdr/captura/blob - Captura/Data/GifRenderer.swift

   1 import UniformTypeIdentifiers
   2 import SwiftUI
   3 import CoreGraphics
   4
   5 struct GifRenderer {
   6   static func render(_ images: [CGImage], at fps: Int, to url: URL) async {
   7     let framedelay = String(format: "%.3f", 1.0 / Double(fps))
   8     let fileProperties = [kCGImagePropertyGIFDictionary as String: [kCGImagePropertyGIFLoopCount as String: 0]]
   9     let gifProperties = [kCGImagePropertyGIFDictionary as String: [kCGImagePropertyGIFUnclampedDelayTime as String: framedelay]]
  10     let cfURL = url as CFURL
  11     if let destination = CGImageDestinationCreateWithURL(cfURL, UTType.gif.identifier as CFString, images.count, nil) {
  12       CGImageDestinationSetProperties(destination, fileProperties as CFDictionary?)
  13       for image in images {
  14         CGImageDestinationAddImage(destination, image, gifProperties as CFDictionary?)
  15       }
  16       CGImageDestinationFinalize(destination)
  17     }
  18   }
  19 }