README.md

Technicalisto

Convert .qt to .mp4 video when using multipartFormData to upload with Alamofire

1. When you try to upload to alamofire by this line but upload as .qt :

     multipartFormData.append(data , withName: "video", fileName: "video.mp4" , mimeType: ".mp4")
   

2. You can add this extension to export as .mp4 :

     extension AVURLAsset { // it is copied from Stackoverflow
   
     func exportVideo(presetName: String = AVAssetExportPresetHighestQuality, outputFileType: AVFileType = .mp4, fileExtension: String = "mp4", then completion: @escaping (URL?) -> Void)
       {
        let filename = url.deletingPathExtension().appendingPathExtension(fileExtension).lastPathComponent
        let outputURL = FileManager.default.temporaryDirectory.appendingPathComponent(filename)
   
    if let session = AVAssetExportSession(asset: self, presetName: presetName) {
        session.outputURL = outputURL
        session.outputFileType = outputFileType
        let start = CMTimeMakeWithSeconds(0.0, preferredTimescale: 0)
        let range = CMTimeRangeMake(start: start, duration: duration)
        session.timeRange = range
        session.shouldOptimizeForNetworkUse = true
        session.exportAsynchronously {
            switch session.status {
            case .completed:
                completion(outputURL)
            case .cancelled:
                debugPrint("Video export cancelled.")
                completion(nil)
            case .failed:
                let errorMessage = session.error?.localizedDescription ?? "n/a"
                debugPrint("Video export failed with error: \(errorMessage)")
                completion(nil)
            default:
                break
            }
        }
    } else {
        completion(nil)
     }
     }
   

   }

3. And using it like :

    if let mediaType = info[UIImagePickerController.InfoKey.mediaType] as? String {
    
    if mediaType == "public.movie" {
   
    let avAsset = AVURLAsset(url: videoURL as! URL, options: nil)
    
    avAsset.exportVideo(presetName: AVAssetExportPresetHighestQuality, outputFileType: AVFileType.mp4, fileExtension: "mp4") { (mp4Url) in
    
    print("Mp4 converted url : \(String(describing: mp4Url))")
    
    self.videoURl = mp4Url
    
    }} }
   

Thanks