How to convert mp4 to NSData?

Question

I have file in XCode with name vvideo.mp4. I am trying to convert it to NSData like below

    NSData *data = [NSData dataWithContentsOfFile:@"vvideo.mp4" options:nil error:nil];

But as I log data, it returns null.

What is right way to convert any video to NSData?

File is added and copies properly in Xcode, you can see here.

EDITED QUESTION....

Answer 1

dataWithContentsOfFile:options:error: takes a file path and not file name. If the video file is in application bundle you should do,

NSString *filePath = [[NSBundle mainBundle] pathForResource:@"vvideo" ofType:@"mp4"];

NSError *error = nil;
NSData *data = [NSData dataWithContentsOfFile:filePath options:nil error:&error];
if(data == nil && error!=nil) {
    //Print error description
}

Rather than passing error argument as nil pass the value, it will be useful in understanding error condition, if any occurs.

Hope that helps!

Answer 2

This is how you can do this in Swift 5:

if let path = Bundle.main.path(forResource: "download", ofType: "mp4"),
   let data = try? Data.init(contentsOf: URL(fileURLWithPath: path)) {
      // Use this data
}

Very important thing to note here is that the file has to be somewhere inside the project instead of Assets.xcassets otherwise path would be nil .

Also make sure to associate the correct Target Membership for example: