trilliwon

import AVFoundation

class VideoTrimmer {
    typealias TrimCompletion = (Error?) -> ()
    typealias TrimPoints = [(CMTime, CMTime)]

    func verifyPresetForAsset(preset: String, asset: AVAsset) -> Bool {
        let compatiblePresets = AVAssetExportSession.exportPresets(compatibleWith: asset)
        let filteredPresets = compatiblePresets.filter { $0 == preset }
        return filteredPresets.count > 0 || preset == AVAssetExportPresetPassthrough

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extension UIDeviceOrientation {

    var imageOrientation: UIImage.Orientation {
        switch UIDevice.current.orientation {
        case .landscapeLeft:
            return UIImage.Orientation.right
        case .landscapeRight:
            return UIImage.Orientation.left
        case .portrait:
            return UIImage.Orientation.up

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extension ViewController {

    func creatingAnAssetObject(asset: AVAsset) {
        let anAsset = asset

        // anAsset.cancelLoading()
        let keys = ["duration"]
        anAsset.loadValuesAsynchronously(forKeys: keys) {

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extension CGAffineTransform {
    // Check the video track's preferred transform to determine if it was recorded in portrait mode.
    var isPortrait: Bool {
        if self.a == 0 && self.d == 0 && (self.b == 1.0 || self.b == -1.0) && (self.c == 1.0 || self.c == -1.0) {
            return true
        }
        return false
    }
}

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var isSeekInProgress = false
var chasingTime = CMTime.zero

func seekActually(time: CMTime) {
    isSeekInProgress = true
    playerView?.player.seek(to: time, toleranceBefore: CMTime.zero, toleranceAfter: CMTime.zero) { success in
        if time == self.chasingTime {
            self.isSeekInProgress = false
        } else {
            self.trySeekToChaseTime()

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    func closeButton(reader: GeometryProxy) -> some View {
        Button(action: {
            self.selectedPoster = nil
        }) {
            Circle()
                .strokeBorder(Color.red, lineWidth: 1)
                .background(Image(systemName: "xmark").foregroundColor(.red))
                .frame(width: 50, height: 50)
            
        }

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@propertyWrapper
struct UserDefault<T> {
    let key: String
    let value: T

    init(key: String, default value: T) {
        self.key = key
        self.value = value
    }

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extension HomeViewController: UIPageViewControllerDataSource {

    func pageViewController(_ pageViewController: UIPageViewController,
                            viewControllerBefore viewController: UIViewController) -> UIViewController? {
        guard let index = mainViewControllers.firstIndex(of: viewController) else { return nil }
        let prevIndex = index - 1
        guard prevIndex >= 0, prevIndex < mainViewControllers.count else { return nil }
        return mainViewControllers[prevIndex]
    }

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tableView.tableFooterView = UIView(frame: .zero)

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extension CGAffineTransform {
    // Check the video track's preferred transform to determine if it was recorded in portrait mode.
    var isPortrait: Bool {
        if self.a == 0 && self.d == 0 && (self.b == 1.0 || self.b == -1.0) && (self.c == 1.0 || self.c == -1.0) {
            return true
        }
        return false
    }
}