Playback rate menu

Model/Player/PlayerTVMenu.swift

@@ -42,12 +42,33 @@ extension PlayerModel {
                 self.restoreLastSkippedSegment()
             }
         }
+
+        private var rateMenu: UIMenu {
+            UIMenu(title: "Playback rate", image: UIImage(systemName: rateMenuSystemImage), children: rateMenuActions)
+        }
+
+        private var rateMenuSystemImage: String {
+            [0.0, 1.0].contains(currentRate) ? "speedometer" : (currentRate < 1.0 ? "tortoise.fill" : "hare.fill")
+        }
+
+        private var rateMenuActions: [UIAction] {
+            PlayerModel.availableRates.map { rate in
+                let image = currentRate == Float(rate) ? UIImage(systemName: "checkmark") : nil
+
+                return UIAction(title: rateLabel(rate), image: image) { _ in
+                    DispatchQueue.main.async {
+                        self.currentRate = rate
+                    }
+                }
+            }
+        }
     #endif
 
     func rebuildTVMenu() {
         #if os(tvOS)
             avPlayerViewController?.transportBarCustomMenuItems = [
                 restoreLastSkippedSegmentAction,
+                rateMenu,
                 streamsMenu
             ].compactMap { $0 }
         #endif