HLS: set target bitrate / AVPlayer: higher resolution

HLS: try matching the set resolution. This works okay with AVPlayer. With MPV it is hit and miss, most of the time MPV targets the highest available bitrate, instead of the set bitrate.

AVPlayer now supports higher resolution up to 1080p60.

Model/Stream.swift

@@ -54,6 +54,32 @@ class Stream: Equatable, Hashable, Identifiable {
             return Int(refreshRatePart.components(separatedBy: CharacterSet.decimalDigits.inverted).joined()) ?? -1
         }
 
+        // These values are an approximation.
+        // https://support.google.com/youtube/answer/1722171?hl=en#zippy=%2Cbitrate
+
+        var bitrate: Int {
+            switch self {
+            case .hd2160p60, .hd2160p50, .hd2160p48, .hd2160p30:
+                return 56000000 // 56 Mbit/s
+            case .hd1440p60, .hd1440p50, .hd1440p48, .hd1440p30:
+                return 24000000 // 24 Mbit/s
+            case .hd1080p60, .hd1080p50, .hd1080p48, .hd1080p30:
+                return 12000000 // 12 Mbit/s
+            case .hd720p60, .hd720p50, .hd720p48, .hd720p30:
+                return 9500000 // 9.5 Mbit/s
+            case .sd480p30:
+                return 4000000 // 4 Mbit/s
+            case .sd360p30:
+                return 1500000 // 1.5 Mbit/s
+            case .sd240p30:
+                return 1000000 // 1 Mbit/s
+            case .sd144p30:
+                return 600000 // 0.6 Mbit/s
+            case .unknown:
+                return 0
+            }
+        }
+
         static func from(resolution: String, fps: Int? = nil) -> Self {
             allCases.first { $0.rawValue.contains(resolution) && $0.refreshRate == (fps ?? 30) } ?? .unknown
         }
@@ -143,6 +169,7 @@ class Stream: Equatable, Hashable, Identifiable {
 
     var encoding: String?
     var videoFormat: String?
+    var bitrate: Int?
 
     init(
         instance: Instance? = nil,
@@ -153,7 +180,8 @@ class Stream: Equatable, Hashable, Identifiable {
         resolution: Resolution? = nil,
         kind: Kind = .hls,
         encoding: String? = nil,
-        videoFormat: String? = nil
+        videoFormat: String? = nil,
+        bitrate: Int? = nil
     ) {
         self.instance = instance
         self.audioAsset = audioAsset
@@ -164,6 +192,7 @@ class Stream: Equatable, Hashable, Identifiable {
         self.kind = kind
         self.encoding = encoding
         format = .from(videoFormat ?? "")
+        self.bitrate = bitrate
     }
 
     var isLocal: Bool {