// Creating temp path to save the converted video
let outputURL: URL = {
    let documents = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0]
    let outputURL = documents.appendingPathComponent("condy_exporter_video.mp4")
    
    // Check if the file already exists then remove the previous file
    if FileManager.default.fileExists(atPath: outputURL.path) {
        do {
            try FileManager.default.removeItem(at: outputURL)
        } catch {
            //completionHandler(nil, error)
        }
    }
    return outputURL
}()

let provider = ExporterProvider.init(with: ``URL Link``)

Or

let provider = ExporterProvider.init(with: ``AVAsset``)

let filters: [C7FilterProtocol] = [
    C7Flip(horizontal: true, vertical: false),
    C7ColorConvert(with: .gray),
    C7SoulOut(soul: 0.3),
    MPSGaussianBlur(radius: 5),
]

/// Export the video after add the filter.
/// - Parameters:
///   - provider: Configure export information.
///   - filtering: Filters work to filter pixel buffer.
///   - complete: The conversion is complete, including success or failure.
Exporter.export(provider: provider, filtering: { buffer in
    let dest = BoxxIO(element: buffer, filters: filters)
    return try? dest.output()
}, complete: { res _ in
    // do somthing..
})

pod 'Kakapos'

pod 'Harbeth'