Swift - How to get video dimension?

Question

I am working on a video editing app where each video gets squared in such a way that no portion of the video gets cropped.For this, in case of portrait video, it contains bl

Answer 1

Try this:

func initAspectRatioOfVideo(with fileURL: URL) -> Double {
  let resolution = resolutionForLocalVideo(url: fileURL)
  guard let width = resolution?.width, let height = resolution?.height else {
     return 0
  }
  return Double(height / width)
}

private func resolutionForLocalVideo(url: URL) -> CGSize? {
    guard let track = AVURLAsset(url: url).tracks(withMediaType: AVMediaType.video).first else { return nil }
   let size = track.naturalSize.applying(track.preferredTransform)
   return CGSize(width: abs(size.width), height: abs(size.height))
}

Hope it helps

Answer 2

This is a more concise version of Vlad Pulichev's answer.

var aspectRatio: CGFloat! // use the function to assign your variable

func getVideoResolution(url: String) -> CGFloat? {
    guard let track = AVURLAsset(url: URL(string: url)!).tracks(withMediaType: AVMediaType.video).first else { return nil }
    let size = track.naturalSize.applying(track.preferredTransform)
    return abs(size.height) / abs(size.width)
}