react-native-video/ios/Video/RCTVideoPlayerViewController.swift

import AVKit

class RCTVideoPlayerViewController: AVPlayerViewController {
    weak var rctDelegate: RCTVideoPlayerViewControllerDelegate?

    // Optional paramters
    var preferredOrientation: String?
    var autorotate: Bool?

    func shouldAutorotate() -> Bool {
        if autorotate! || preferredOrientation == nil || (preferredOrientation!.lowercased() == "all") {
            return true
        }

        return false
    }

    override func viewDidDisappear(_ animated: Bool) {
        super.viewDidDisappear(animated)

        rctDelegate?.videoPlayerViewControllerWillDismiss(playerViewController: self)
        rctDelegate?.videoPlayerViewControllerDidDismiss(playerViewController: self)
    }

    #if !os(tvOS)

        func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
            return .all
        }

        func preferredInterfaceOrientationForPresentation() -> UIInterfaceOrientation {
            if preferredOrientation?.lowercased() == "landscape" {
                return .landscapeRight
            } else if preferredOrientation?.lowercased() == "portrait" {
                return .portrait
            } else {
                // default case
                let orientation = UIApplication.shared.statusBarOrientation
                return orientation
            }
        }

    #endif
}