Bring AVPlayer back to tvOS

Model/Player/Backends/MPVClient.swift

@@ -142,7 +142,9 @@ final class MPVClient: ObservableObject {
 
         options.append("force-seekable=yes")
 
-        args.append(options.joined(separator: ","))
+        if !options.isEmpty {
+            args.append(options.joined(separator: ","))
+        }
 
         command("loadfile", args: args, returnValueCallback: completionHandler)
     }

Model/Player/PlayerTVMenu.swift

@@ -20,7 +20,7 @@ extension PlayerModel {
                 ]
             }
 
-            return availableStreamsSorted.map { stream in
+            return availableStreamsSorted.filter { backend.canPlay($0) }.map { stream in
                 let state = stream == streamSelection ? UIAction.State.on : .off
 
                 return UIAction(title: stream.description, state: state) { _ in
@@ -43,6 +43,13 @@ extension PlayerModel {
             }
         }
 
+        var switchToMPVAction: UIAction? {
+            UIAction(title: "Switch to MPV", image: UIImage(systemName: "m.circle")) { _ in
+                self.avPlayerBackend.controller?.dismiss(animated: false)
+                self.changeActiveBackend(from: .appleAVPlayer, to: .mpv)
+            }
+        }
+
         private var rateMenu: UIMenu {
             UIMenu(title: "Playback rate", image: UIImage(systemName: rateMenuSystemImage), children: rateMenuActions)
         }
@@ -69,7 +76,8 @@ extension PlayerModel {
             avPlayerBackend.controller?.playerView.transportBarCustomMenuItems = [
                 restoreLastSkippedSegmentAction,
                 rateMenu,
-                streamsMenu
+                streamsMenu,
+                switchToMPVAction
             ].compactMap { $0 }
         #endif
     }