I am using AVFoundation to capture screen recording and write it to a path. My app is sandboxed.
func captureVideo() { // Capture Method Code
let documentsDirectory = FileManager.default.urls(for: .desktopDirectory, in: .userDomainMask).first!
let dataPath = documentsDirectory.appendingPathComponent("System")
do {
try FileManager.default.createDirectory(atPath: dataPath.path, withIntermediateDirectories: true, attributes: nil)
} catch let error as NSError {
print("Error creating directory: \(error.localizedDescription)")
}
session.sessionPreset = AVCaptureSessionPresetMedium
if session.canAddInput(input) {
session.addInput(input)
}
if session.canAddOutput(movieCaptureOutPut) {
session.addOutput(movieCaptureOutPut)
}
session.startRunning()
let outputUrl = URL(fileURLWithPath: dataPath.absoluteString)
movieCaptureOutPut.startRecording(toOutputFileURL: outputUrl, recordingDelegate: self)
let _ = Timer.scheduledTimer(timeInterval: TimeInterval(5), target: self, selector: #selector(self.finishRecord), userInfo: nil, repeats: false)
}
But I am getting error:
FigMovieFormatFileWriter::PostProcessMovie: WriteMovie() errored!!! -67452
I have checked write permission, as I can create 'System' folder.
Any idea how this error can be resolved?
The outputUrl should be a video URL, you can change it to something like this:
let outputUrl = URL(fileURLWithPath: dataPath.absoluteString)
.appendingPathComponent("test")
.appendingPathExtension("mov")
You can check the method's API page.
Related
Xcode newbie.(me.dumb)
First time poster.
I have the following code and it tested flawlessly in Xcode Playground(h/t D.Budd Data Science).
I want to turn the code into a MacOS app and I cannot fathom the correct Project and Settings
to do this or do I need to import the Playground into a Project and modify it?
Also this app needs to run in the background (ie, no Window/UI) as this would destroy the current window scene(MagicMirror), sort of like an Automater app can do. It would have an app icon, of course.
Thanks so much for any help.
import Cocoa
extension String{
// get the file name from string
func fileName() -> String{
return URL(fileURLWithPath: self).deletingPathExtension().lastPathComponent
}
// get the file extension from a string
func fileExtension() -> String{
return URL(fileURLWithPath: self).pathExtension
}
}
func readFile(inputFile: String) -> String{
//split the file extension and file name
let fileExtension = inputFile.fileExtension()
let fileName = inputFile.fileName()
//get the file URL
let fileURL = try! FileManager.default.url(for: .desktopDirectory, in: .userDomainMask, appropriateFor: nil, create: true)
let inputFile = fileURL.appendingPathComponent(fileName).appendingPathExtension(fileExtension)
//get the data
do{
let saveData = try String(contentsOf: inputFile)
return saveData
} catch {
return error.localizedDescription
}
}
func writeFile(outputFile: String, stringData: String){
let fileExtension = outputFile.fileExtension()
let fileName = outputFile.fileName()
//get the fileURL
let fileURL = try! FileManager.default.url(for: .desktopDirectory, in: .userDomainMask, appropriateFor: nil, create: true)
let outputFile = fileURL.appendingPathComponent(fileName).appendingPathExtension(fileExtension)
//save the data
guard let data = stringData.data(using: .utf8) else {
print("No Can Do")
return
}
do {
try data.write(to: outputFile)
print("data written: /data")
} catch {
print(error .localizedDescription)
}
let myData = readFile(inputFile: "test.txt")
writeFile(outputFile: "output.txt", stringData: myData)
}
I'm trying to download video preview base on remote video URL. In my project, the server cannot return snapshot image of the videos, that's why I have to do it manually.
In table view, I have code like this in cellForItemAt to get video preview
DataManager.sharedInstance.getCachedImage(url: movie.url!, handler: { (image) in
cell.ivCover.image = image
})
and my getCachedImage function in DataManager:
func getCachedImage(url: String, handler: #escaping(_ result:UIImage) -> Void){
DispatchQueue.global().async {
let userDefaults = UserDefaults.standard
if let imageData = userDefaults.object(forKey: url){
if let finalImg = UIImage(data: imageData as! Data){
DispatchQueue.main.async {
handler(finalImg)
}
print("USING CACHED IMG")
}else{
DispatchQueue.main.async {
handler(#imageLiteral(resourceName: "cover"))
}
print("Cannot parse cached data to image. Use default")
}
}else{
let asset = AVURLAsset(url: URL(string: url)!)
let generate = AVAssetImageGenerator(asset: asset)
generate.appliesPreferredTrackTransform = true
var thumbTime = asset.duration
thumbTime.value = 1
var imgRef:CGImage?
do{
print("Downloading thum from url: \(url)")
imgRef = try generate.copyCGImage(at: thumbTime, actualTime: nil)
}catch let error{
print("Error download thum: \(error.localizedDescription)")
}
var finalImg:UIImage
if let _ = imgRef{
finalImg = UIImage(cgImage: imgRef!)
userDefaults.set(UIImagePNGRepresentation(finalImg), forKey: url)
}else{
finalImg = #imageLiteral(resourceName: "cover")
print("Download thumnail failed. Use default")
}
DispatchQueue.main.async {
handler(finalImg)
}
}
}
}
The problem is that, sometimes I scroll the Collection view, UI is freezed, sometimes it's not. Please note that this video is on REMOTE SERVER, NOT local video.
I've spent days to figure out the issue but still not able to find out what went wrong. Please help!
Or is there any existing library I can use?
import UIKit
import Photos
class ImportViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
}
#IBAction func myButton(_ sender: Any) {
let videoURL = "https://youerdomin.com/file.mp4"
print("1")
DispatchQueue.global(qos: .background).async {
print("2")
if let url = URL(string: videoURL), let urlData = NSData(contentsOf: url) {
print("3")
let documentsPath =
NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0];
let filePath="\(documentsPath)/tempFile.mp4"
DispatchQueue.main.async {
print("4")
urlData.write(toFile: filePath, atomically: true)
PHPhotoLibrary.shared().performChanges({
print("5")
PHAssetChangeRequest.creationRequestForAssetFromVideo(atFileURL: URL(fileURLWithPath: filePath))
}) { completed, error in
print("6")
if completed {
print("Video is saved!")
}else{
print("7: ",filePath)
}
}
}
}else{
print("8")
}
}
}
}
I have a file that is in my Documents/Inbox and is shown in my Print log:
File:
file:///private/var/mobile/Containers/Data/Application/5388031B-48B5-48D6-8299-B3FEDC1D7F45/Documents/Inbox/Pizza-6.pdf
I looked here and saw a way to delete files, but I want to move them out of the Inbox folder to another folder I want to create. How would I do this? I can't find anything for iOS and Swift 2. Thank you.
Here is what I ended up doing:
// MOVING AND SAVING INCOMING PDF TO FILE MANAGER FROM INBOX
let filemgr = NSFileManager.defaultManager()
let docsDirURL = try! filemgr.URLForDirectory(.DocumentDirectory, inDomain: .UserDomainMask, appropriateForURL: nil, create: true)
// Create a new folder in the directory named "Recipes"
print("Creating new folder...")
let documentsPath = NSURL(fileURLWithPath: NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)[0])
let newPath = documentsPath.URLByAppendingPathComponent("Recipes")
do {
try NSFileManager.defaultManager().createDirectoryAtPath(newPath.path!, withIntermediateDirectories: true, attributes: nil)
} catch let error as NSError {
NSLog("Unable to create directory \(error.debugDescription)")
}
// Then check if the Recipes directory exists. If not, create it
let recipesURL = docsDirURL.URLByAppendingPathComponent("Recipes")
if !filemgr.fileExistsAtPath(docsDirURL.path!) {
do {
try filemgr.createDirectoryAtURL(recipesURL, withIntermediateDirectories: true, attributes: nil)
print("Directory created at: \(recipesURL)")
} catch let error as NSError {
NSLog("Unable to create directory \(error.debugDescription)")
return
}
}
// Move file from Inbox to Recipes Folder
let incomingFileName = incomingFileTransfer.lastPathComponent!
let startingURL = incomingFileTransfer
let savePDFURL = recipesURL.URLByAppendingPathComponent(incomingFileName)
if !filemgr.fileExistsAtPath(savePDFURL.path!) {
do {
try filemgr.moveItemAtURL(startingURL, toURL: savePDFURL)
} catch let error as NSError {
NSLog("Unable to move file \(error.debugDescription)")
}
}
After an introduction to Javascript, I'm trying to tackle OSX/iOS programming by creating some simple tools to scratch my own itches.
However, right from the jump I hit a roadblock.
I found two examples that should work.
https://github.com/hinderberg/ios-swift-kurs/blob/master/swift-intro/wallpaper.swift
https://www.snip2code.com/Snippet/196825/Swift-shell-script-to-randomize-wallpape
Here's the second:
#!/usr/bin/env xcrun swift
import Foundation
import AppKit
let imagesDir = "/Users/david/Dropbox/Graphics/Wallpaper-HD/"
var err: NSError?
let fs = NSFileManager.defaultManager()
let filenames = fs.contentsOfDirectoryAtPath(imagesDir, error: &err) as [String]?
if let error = err {
NSLog(error.localizedDescription)
} else {
let imagenames = filenames!.filter { $0.hasSuffix(".jpg") || $0.hasSuffix("png") }
let ir = Int(arc4random_uniform(UInt32(imagenames.count)))
let imgurl = NSURL.fileURLWithPath(imagesDir + imagenames[ir])
let workspace = NSWorkspace.sharedWorkspace()
let screen = NSScreen.mainScreen()
let ok : Bool = workspace.setDesktopImageURL( imgurl!, forScreen: screen!, options: nil, error: nil )
if ok {
println( "New wallpaper: " + imagenames[ir] )
} else {
println("Oops!")
}
}
This didn't work in XCode 7 beta 3.
Hoping to reduce to the essentials, I arrived at:
#!/usr/bin/env xcrun swift
import Foundation
import AppKit
let imagesDir = "/Users/josh/Downloads/"
let singleImage = "/Users/josh/Downloads/xlarge.png"
let imgurl = NSURL.fileURLWithPath(singleImage)
let workspace = NSWorkspace.sharedWorkspace()
let screen = NSScreen.mainScreen()
let ok : Bool = workspace.setDesktopImageURL( imgurl, forScreen: screen!, options: nil, error: nil )
if ok {
print( "New wallpaper set!" )
} else {
print("Oops!")
}
And saved as the file wallpaper.swift.
On execution, the error is:
./wallpaper.swift:17:49: error: extra argument 'error' in call
let ok : Bool = workspace.setDesktopImageURL( imgurl, forScreen: screen!, options: nil, error: nil )
And now I'm completely stuck...
I've tried referring to NSWorkspace and NSScreen documentation as well as running through playground, but it's beyond my current skills.
Removing the extra argument it complains about (error: nil) simply gives a different error:
./wallpaper.swift:13:31: error: cannot invoke 'setDesktopImageURL' with an argument list of type '(NSURL, forScreen: NSScreen?, options: nil)'
let ok : Bool = workspace.setDesktopImageURL( imgurl, forScreen: screen, options: nil )
Where is the code failing, and how can I understand how to make it work properly?
In your example you're passing nil as options to the method.
I guess it worked before but now in the comments you showed the current method signature:
(url: NSURL, forScreen screen: NSScreen, options: [String : AnyObject]) throws
We see that options should be a non-Optional Dictionary.
It means you can't use nil anymore for the options parameter: if you don't have options, just pass an empty Dictionary.
Also, now in Swift 2, this method doesn't return a Bool anymore, it throws.
Meaning you have to use it with do try catch:
do {
let imgurl = NSURL.fileURLWithPath(singleImage)
let workspace = NSWorkspace.sharedWorkspace()
if let screen = NSScreen.mainScreen() {
try workspace.setDesktopImageURL(imgurl, forScreen: screen, options: [:])
}
} catch {
print(error)
}
Updated example for Swift 3:
do {
let imgurl = NSURL.fileURL(withPath: singleImage)
let workspace = NSWorkspace.shared()
if let screen = NSScreen.main() {
try workspace.setDesktopImageURL(imgurl, for: screen, options: [:])
}
} catch {
print(error)
}
For those of us using Xamarin Mac, this can be achieved like so:
string filepath = "/Users/you/Desktop/sweet-wallpaper.jpg";
var workspace = NSWorkspace.SharedWorkspace;
var screen = NSScreen.MainScreen;
NSUrl url = NSUrl.FromFilename(filepath);
NSDictionary options = new NSDictionary();
NSError errorContainer = new NSError();
workspace.SetDesktopImageUrl(url, NSScreen.MainScreen, options, errorContainer);
Updated version for Swift 5.x:
do {
let imageURL = URL(fileURLWithPath: "/path/to/image")
if let screen = NSScreen.main {
try NSWorkspace.shared.setDesktopImageURL(imageURL, for: screen, options: [:])
}
} catch {
print(error)
}
I'm new to swift and I'm not sure how to make a new folder from a string path (or from some kind of File/ NSFile object)
This is on OS X with Cocoa.
My understanding is that you are trying to create a directory programmatically using swift. The code given below does the same.
var err: NSErrorPointer = nil
let manager = NSFileManager.defaultManager()
manager.createDirectoryAtPath("/Users/abc/Desktop/swiftDir", withIntermediateDirectories: true, attributes: nil, error: err)
Xcode 8 • Swift 3
extension FileManager.SearchPathDirectory {
func createSubFolder(named: String, withIntermediateDirectories: Bool = false) -> Bool {
guard let url = FileManager.default.urls(for: self, in: .userDomainMask).first else { return false }
do {
try FileManager.default.createDirectory(at: url.appendingPathComponent(named), withIntermediateDirectories: withIntermediateDirectories, attributes: nil)
return true
} catch {
print(error)
return false
}
}
}
Usage:
if FileManager.SearchPathDirectory.desktopDirectory.createSubFolder(named: "untitled folder") {
print("folder successfully created")
}
SearchPathDirectory
In Swift 2.0 you must use the new style for error handling:
let path: String = "/Users/abc/Desktop/swiftDir"
let fileManager = NSFileManager.defaultManager()
do
{
try fileManager.createDirectoryAtPath(path, withIntermediateDirectories: true, attributes: nil)
}
catch let error as NSError
{
print("Error while creating a folder.")
}