Video file formats supported in iPhone

MediaFormat.md

    import AVFoundation.AVMediaFormat
    enum MediaFormat {
        case MOV
        case MP4
        case M4V

        var filenameExtension: String {
            switch self {
            case .MOV:
                return ".mov"
            case .MP4:
                return ".mp4"
            case .M4V:
                return ".m4v"
            }
        }

        var fileFormat: String {
            switch self {
            case .MOV:
                return AVFileTypeQuickTimeMovie
            case .MP4:
                return AVFileTypeMPEG4
            case .M4V:
                return AVFileTypeAppleM4V
            }
        }
    }