Swift Get Nsdata of a Video from Photos Library

How to convert video (in gallery) to NSData? in Swift

Xcode 10 • Swift 4.2 or later

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
    let documentsDirectoryURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
    if let url = info[.mediaURL] as? URL {
        do {
            try FileManager.default.moveItem(at: url, to: documentsDirectoryURL.appendingPathComponent("videoName.mov"))
            print("movie saved")
        } catch {
            print(error)
        }
    }
}

Xcode 8.3 • Swift 3.1

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String: Any]) {
    let documentsDirectoryURL =  FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
    if let fileURL =  info[UIImagePickerControllerMediaURL] as? URL {
        do {
            try  FileManager.default.moveItem(at: fileURL, to: documentsDirectoryURL.appendingPathComponent("videoName.mov")
            print("movie saved")
        } catch {
            print(error)
        }
    }
}

Swift 2

You should use if let to unwrap your optionals. Also NSData.dataWithContentsOfMappedFile was deprecated iOS8. Try using NSData method initializer contentsOfURL:

Note: You need also to change the didFinishPickingMediaWithInfo declaration from [NSObject : AnyObject] to [String : AnyObject]

func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {
    if let fileURL = info[UIImagePickerControllerMediaURL] as? NSURL {
        if let videoData = NSData(contentsOfURL: fileURL) {
            print(videoData.length)
        }
    }
}

as mentioned by Rob the data can be really large but instead of copying the file you should move the file to the documents folder as follow:

let documentsDirectoryURL =  try! NSFileManager().URLForDirectory(.DocumentDirectory, inDomain: .UserDomainMask, appropriateForURL: nil, create: true)
if let fileURL =  info[UIImagePickerControllerMediaURL] as? NSURL {
    do {
        try  NSFileManagerdefaultManager().moveItemAtURL(fileURL, toURL: documentsDirectoryURL.URLByAppendingPathComponent("videoName").URLByAppendingPathExtension("mov"))
        print("movie saved")
    } catch {
        print(error)
    }
}

How to get NSData from image picker?

When I change the "UIImagePickerControllerReferenceURL" to "UIImagePickerControllerMediaURL" its totally worked

 func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
        self.dismiss(animated: true, completion: nil)
        videoURL = info[UIImagePickerController.InfoKey.init(rawValue: "UIImagePickerControllerMediaURL")] as? URL
 }

How can I convert photo (or video) from camera to NSData?

Since ALAssetsLibrary is deprecated, you should use the Photos library. See below code example.

PHPhotoLibrary.sharedPhotoLibrary().performChanges({

    let assetRequest = PHAssetChangeRequest.creationRequestForAssetFromImage(image)

    }, completionHandler: { (success, error) -> Void in

    if success {
        //image saved to photos library.
    }
})

If you need to transform the image to NSData, you could simply use (as pointed out by @if-else-switch )

UIImagePNGRepresentation(image)

Hope that helps!

Get video size after Save this video to Photo Library in iOS

You can do it in three ways

1.Use NSData length

    ALAssetRepresentation *rep = [alasset defaultRepresentation];
    Byte *buffer = (Byte*)malloc(rep.size);
    NSError *error = nil;
    NSUInteger buffered = [rep getBytes:buffer fromOffset:0.0 length:rep.size error:&error];
    NSData *data = [NSData dataWithBytesNoCopy:buffer length:buffered freeWhenDone:YES];
    NSLog(@"Size of video %d",data.length);

2.Make use of ALAssetRepresentationsize

3.Worst-Case Scenario: Use the videoPathURL that points to the saved video file, retrieve it again using ALAsset and caliculate the size.

Swift: How to handle video and photo results from a PHPicker?

Just ask whether the item provider has an item of type UTType.movie.identifier. If so, go ahead and load it by calling loadFileRepresentation(forTypeIdentifier: UTType.movie.identifier).

Actual code:

    if prov.hasItemConformingToTypeIdentifier(UTType.movie.identifier) {
        self.dealWithVideo(result)
    } else if prov.canLoadObject(ofClass: PHLivePhoto.self) {
        self.dealWithLivePhoto(result)
    } else if prov.canLoadObject(ofClass: UIImage.self) {
        self.dealWithImage(result)
    }