Workaround for video view orientation freeze (#954)

Resolves #949 

This is just a workaround - there are some possible improvements on
WebRTC side (avoid unbounded waits etc.), but we're unable to isolate
the root cause for now.

IMO that's a good tradeoff for older devices (approaching end of
support).

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: pblazej

.changes/metal-renderer-fallback

@@ -0,0 +1 @@
+patch type="fixed" "Avoid Metal pipeline freeze on iPhone 11 family by defaulting to sample buffer renderer"

.github/workflows/ci.yaml

@@ -57,11 +57,11 @@ jobs:
           # https://github.com/actions/runner-images/blob/main/images/macos/macos-26-arm64-Readme.md
           - os: macos-26
             xcode: 26.4
-            platform: "iOS Simulator,name=iPhone 17 Pro,OS=26.4"
+            platform: "iOS Simulator,name=iPhone 17 Pro,OS=26.4.1"
             symbol-graph: true
           - os: macos-26
             xcode: 26.4
-            platform: "iOS Simulator,name=iPhone 17 Pro,OS=26.4"
+            platform: "iOS Simulator,name=iPhone 17 Pro,OS=26.4.1"
             extension-api-only: true
           - os: macos-26
             xcode: 26.4
@@ -84,7 +84,7 @@ jobs:
             platform: "macOS,variant=Mac Catalyst"
           - os: macos-26
             xcode: 26.4
-            platform: "visionOS Simulator,name=Apple Vision Pro,OS=26.4"
+            platform: "visionOS Simulator,name=Apple Vision Pro,OS=26.4.1"
           - os: macos-26
             xcode: 26.4
             platform: "tvOS Simulator,name=Apple TV,OS=26.4"

.github/workflows/publish-docs.yaml

@@ -23,7 +23,7 @@ jobs:
     strategy:
       matrix:
         include:
-          - platform: "iOS Simulator,name=iPhone 17 Pro,OS=26.4"
+          - platform: "iOS Simulator,name=iPhone 17 Pro,OS=26.4.1"
             artifact_name: symbol-graph-ios
           - platform: "macOS"
             artifact_name: symbol-graph-macos

Sources/LiveKit/Views/VideoView.swift

@@ -773,9 +773,23 @@ extension VideoView {
         #endif
     }
 
+    /// `true` when no Metal device exists or the GPU is Apple family ≤ 6
+    /// (pre-A14 / M1), where the WebRTC Metal path is unstable under rotation.
+    static let shouldAvoidMetalRenderer: Bool = {
+        guard let device = MTLCreateSystemDefaultDevice() else { return true }
+        return !device.supportsFamily(.apple7)
+    }()
+
     static func createNativeRendererView(for renderMode: VideoView.RenderMode) -> NativeRendererView {
         #if os(iOS) || os(macOS)
-        if case .sampleBuffer = renderMode {
+        let resolvedRenderMode: VideoView.RenderMode = {
+            if case .auto = renderMode {
+                return shouldAvoidMetalRenderer ? .sampleBuffer : .metal
+            }
+            return renderMode
+        }()
+
+        if case .sampleBuffer = resolvedRenderMode {
             log("Using AVSampleBufferDisplayLayer for VideoView's Renderer")
             return SampleBufferVideoRenderer()
         } else {