From 2d6a9d4442b805220d5a5e11676db3e94b8b4cda Mon Sep 17 00:00:00 2001
From: sauwming <ming@teluu.com>
Date: Tue, 27 Feb 2024 12:54:00 +0800
Subject: [PATCH] Check the availability of Metal device (#3871)

---
 pjmedia/src/pjmedia-videodev/metal_dev.m | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/pjmedia/src/pjmedia-videodev/metal_dev.m b/pjmedia/src/pjmedia-videodev/metal_dev.m
index ab7f3a408d..3118687739 100644
--- a/pjmedia/src/pjmedia-videodev/metal_dev.m
+++ b/pjmedia/src/pjmedia-videodev/metal_dev.m
@@ -217,7 +217,16 @@ static pj_status_t metal_factory_refresh(pjmedia_vid_dev_factory *f)
     if (@available(macOS 10.14, iOS 12.0, *)) {
         struct metal_dev_info *qdi;
         unsigned l;
-        
+        id<MTLDevice> device;
+
+        device = MTLCreateSystemDefaultDevice();
+        if (!device) {
+            PJ_LOG(3, (THIS_FILE, "No Metal device found"));
+            return PJ_SUCCESS;
+        } else {
+            [device release];
+        }
+
         /* Init output device */
         qdi = &qf->dev_info[qf->dev_count++];
         pj_bzero(qdi, sizeof(*qdi));