Extract playback stats view

Shared/Player/Controls/PlaybackStatsView.swift

@@ -0,0 +1,37 @@
+import SwiftUI
+
+struct PlaybackStatsView: View {
+    @ObservedObject private var networkState = NetworkStateModel.shared
+
+    private var player: PlayerModel { .shared }
+
+    var body: some View {
+        VStack(alignment: .leading, spacing: 6) {
+            mpvPlaybackStatRow("Hardware decoder", player.mpvBackend.hwDecoder)
+            mpvPlaybackStatRow("Dropped frames", String(player.mpvBackend.frameDropCount))
+            mpvPlaybackStatRow("Stream FPS", String(format: "%.2ffps", player.mpvBackend.outputFps))
+            mpvPlaybackStatRow("Cached time", String(format: "%.2fs", player.mpvBackend.cacheDuration))
+        }
+        .padding(.top, 2)
+        #if os(tvOS)
+            .font(.system(size: 20))
+        #else
+            .font(.system(size: 11))
+        #endif
+    }
+
+    func mpvPlaybackStatRow(_ label: String, _ value: String) -> some View {
+        HStack {
+            Text(label)
+                .foregroundColor(.secondary)
+            Spacer()
+            Text(value)
+        }
+    }
+}
+
+struct PlaybackStatsView_Previews: PreviewProvider {
+    static var previews: some View {
+        PlaybackStatsView()
+    }
+}