From ca7d61f5281f0aa820ca0f4f3307b06c4f0d257d Mon Sep 17 00:00:00 2001
From: Cameron Gutman <aicommander@gmail.com>
Date: Sun, 14 Jun 2026 19:27:01 -0500
Subject: [PATCH] Prefer libplacebo on macOS when available

---
 app/streaming/video/ffmpeg.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/app/streaming/video/ffmpeg.cpp b/app/streaming/video/ffmpeg.cpp
index b2de86b4..055601a3 100644
--- a/app/streaming/video/ffmpeg.cpp
+++ b/app/streaming/video/ffmpeg.cpp
@@ -1005,7 +1005,12 @@ IFFmpegRenderer* FFmpegVideoDecoder::createHwAccelRenderer(const AVCodecHWConfig
 #endif
 #ifdef Q_OS_DARWIN
         case AV_HWDEVICE_TYPE_VIDEOTOOLBOX:
-            // Prefer the Metal renderer if hardware is compatible
+            // Prefer the libplacebo (on MoltenVK) renderer unless explicitly opted out
+#ifdef HAVE_LIBPLACEBO_VULKAN
+            if (qgetenv("PREFER_VULKAN") != "0") {
+                return new PlVkRenderer(hwDecodeCfg->device_type);
+            }
+#endif
             return VTMetalRendererFactory::createRenderer(true);
 #endif
 #ifdef HAVE_LIBVA