Tusker/Screens/Gallery/VideoGalleryContentViewController.swift

@@ -9,19 +9,16 @@
 import UIKit
 import GalleryVC
 import AVFoundation
-import CoreImage
 
 class VideoGalleryContentViewController: UIViewController, GalleryContentViewController {
     private let url: URL
     let caption: String?
-    private var item: AVPlayerItem
+    private let item: AVPlayerItem
     let player: AVPlayer
     
     @available(iOS, obsoleted: 16.0, message: "Use AVPlayer.defaultRate")
     @Box private var playbackSpeed: Float = 1
     
-    private var isGrayscale: Bool
-    
     private var presentationSizeObservation: NSKeyValueObservation?
     private var statusObservation: NSKeyValueObservation?
     private var rateObservation: NSKeyValueObservation?
@@ -32,10 +29,8 @@ class VideoGalleryContentViewController: UIViewController, GalleryContentViewCon
         self.url = url
         self.caption = caption
         
-        self.isGrayscale = Preferences.shared.grayscaleImages
-        
         let asset = AVAsset(url: url)
-        self.item = VideoGalleryContentViewController.createItem(asset: asset)
+        self.item = AVPlayerItem(asset: asset)
         self.player = AVPlayer(playerItem: item)
         
         super.init(nibName: nil, bundle: nil)
@@ -45,25 +40,6 @@ class VideoGalleryContentViewController: UIViewController, GalleryContentViewCon
         fatalError("init(coder:) has not been implemented")
     }
     
-    private static func createItem(asset: AVAsset) -> AVPlayerItem {
-        let item = AVPlayerItem(asset: asset)
-        if Preferences.shared.grayscaleImages {
-            #if os(visionOS)
-            #warning("Use async AVVideoComposition CIFilter initializer")
-            #else
-            let filter = CIFilter(name: "CIColorMonochrome")!
-            filter.setValue(CIColor(red: 0.85, green: 0.85, blue: 0.85), forKey: "inputColor")
-            filter.setValue(1.0, forKey: "inputIntensity")
-
-            item.videoComposition = AVVideoComposition(asset: asset, applyingCIFiltersWithHandler: { request in
-                filter.setValue(request.sourceImage, forKey: "inputImage")
-                request.finish(with: filter.outputImage!, context: nil)
-            })
-            #endif
-        }
-        return item
-    }
-    
     override func viewDidLoad() {
         super.viewDidLoad()
         
@@ -79,9 +55,20 @@ class VideoGalleryContentViewController: UIViewController, GalleryContentViewCon
             playerView.bottomAnchor.constraint(equalTo: view.bottomAnchor),
         ])
         
-        preferredContentSize = item.presentationSize
-
-        updateItemObservations()
+        presentationSizeObservation = item.observe(\.presentationSize, changeHandler: { [unowned self] item, _ in
+            MainActor.runUnsafely {
+                self.preferredContentSize = item.presentationSize
+                self.container?.galleryContentChanged()
+            }
+        })
+        statusObservation = item.observe(\.status, changeHandler: { [unowned self] item, _ in
+            MainActor.runUnsafely {
+                if item.status == .readyToPlay {
+                    self.container?.setGalleryContentLoading(false)
+                    statusObservation = nil
+                }
+            }
+        })
         rateObservation = player.observe(\.rate, options: .old, changeHandler: { [unowned self] player, info in
             hideControlsWorkItem?.cancel()
             if player.rate > 0 && info.oldValue == 0 {
@@ -97,37 +84,7 @@ class VideoGalleryContentViewController: UIViewController, GalleryContentViewCon
             }
         })
         
-        NotificationCenter.default.addObserver(self, selector: #selector(preferencesChanged), name: .preferencesChanged, object: nil)
-    }
-    
-    private func updateItemObservations() {
-        presentationSizeObservation = item.observe(\.presentationSize, changeHandler: { [unowned self] item, _ in
-            MainActor.runUnsafely {
-                self.preferredContentSize = item.presentationSize
-                self.container?.galleryContentChanged()
-            }
-        })
-        statusObservation = item.observe(\.status, changeHandler: { [unowned self] item, _ in
-            MainActor.runUnsafely {
-                if item.status == .readyToPlay {
-                    self.container?.setGalleryContentLoading(false)
-                    statusObservation = nil
-                }
-            }
-        })
-    }
-    
-    @objc private func preferencesChanged() {
-        if isGrayscale != Preferences.shared.grayscaleImages {
-            let isPlaying = player.rate > 0
-            isGrayscale = Preferences.shared.grayscaleImages
-            item = VideoGalleryContentViewController.createItem(asset: item.asset)
-            player.replaceCurrentItem(with: item)
-            updateItemObservations()
-            if isPlaying {
-                player.rate = playbackSpeed
-            }
-        }
+        preferredContentSize = item.presentationSize
     }
     
     // MARK: GalleryContentViewController

Tusker/Views/Attachments/GifvController.swift

@@ -62,14 +62,10 @@ class GifvController {
     @objc private func preferencesChanged() {
         if isGrayscale != Preferences.shared.grayscaleImages {
             isGrayscale = Preferences.shared.grayscaleImages
-            let oldItem = item
             item = GifvController.createItem(asset: asset)
             player.replaceCurrentItem(with: item)
             self.updatePresentationSizeObservation()
             player.play()
-            
-            NotificationCenter.default.removeObserver(self, name: AVPlayerItem.didPlayToEndTimeNotification, object: oldItem)
-            NotificationCenter.default.addObserver(self, selector: #selector(restartItem), name: AVPlayerItem.didPlayToEndTimeNotification, object: item)
         }
     }
     
@@ -79,12 +75,13 @@ class GifvController {
             #if os(visionOS)
             #warning("Use async AVVideoComposition CIFilter initializer")
             #else
-            let filter = CIFilter(name: "CIColorMonochrome")!
-            filter.setValue(CIColor(red: 0.85, green: 0.85, blue: 0.85), forKey: "inputColor")
-            filter.setValue(1.0, forKey: "inputIntensity")
-
             item.videoComposition = AVVideoComposition(asset: asset, applyingCIFiltersWithHandler: { (request) in
+                let filter = CIFilter(name: "CIColorMonochrome")!
+                
                 filter.setValue(request.sourceImage, forKey: "inputImage")
+                filter.setValue(CIColor(red: 0.85, green: 0.85, blue: 0.85), forKey: "inputColor")
+                filter.setValue(1.0, forKey: "inputIntensity")
+                
                 request.finish(with: filter.outputImage!, context: nil)
             })
             #endif