Screen backdrop (schema v5/v6) + five-scene catalog + webcam polish: live desktop/game capture as a permanent non-deletable bottom layer (Source.IsBackdrop), auto full-screen game detection (Win32FullScreenDetector) else primary display, GraphicsCapturePicker re-designation, refcounted shared ScreenCaptureManager, Live-only backdrop by policy (HasBackdrop + v5-v6 backfill + EnforceBackdropPolicy, checkbox gone), SceneCatalog (Starting/Live/BRB/Chat/Ending) with + button re-adding missing scenes, webcam mid-session transparent-container fix (GetPreviewBitmap propagation), Chat half-screen-area cap, 'Add Webcam' always opens the picker (SwapWebcamIdentityAsync, no silent resurrect), WindowsRuntimeMarshal frame-read + 5s-throttled errors, docs updated, tests (65 passing)

2026-08-07 14:15:50 -07:00
parent e037ba027b
commit ad9b3e1e48
27 changed files with 2232 additions and 116 deletions
@@ -0,0 +1,32 @@
+using System;
+using System.Linq;
+
+namespace ytLive.Models;
+
+/// <summary>
+/// The app's five canonical scenes. Scenes are worked on by name; you can delete
+/// them ("work with less"), but the app only ever adds back one of these five —
+/// anything beyond them is OBS territory. The live desktop/game backdrop exists
+/// only in the Live scene.
+/// </summary>
+public static class SceneCatalog
+{
+    public const string Starting = "Starting";
+    public const string Live = "Live";
+    public const string Brb = "BRB";
+    public const string Chat = "Chat";
+    public const string Ending = "Ending";
+
+    public static readonly string[] All = { Starting, Live, Brb, Chat, Ending };
+
+    public static bool IsCanonical(string? name)
+        => name != null && All.Contains(name.Trim(), StringComparer.OrdinalIgnoreCase);
+
+    public static bool Is(string? name, string canonical)
+        => name != null && string.Equals(name.Trim(), canonical, StringComparison.OrdinalIgnoreCase);
+
+    public static bool IsChat(string? name) => Is(name, Chat);
+
+    /// <summary>Only the Live scene carries the live desktop/game backdrop.</summary>
+    public static bool HasBackdrop(string? name) => Is(name, Live);
+}