lavfi/metal: fix build on pre-10.15 SDKs

SaschaVasarrhelyi · Dec 23, 2021 · 0f77ee9 · 0f77ee9
1 parent 62ad427
commit 0f77ee9
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/libavfilter/metal/utils.m b/libavfilter/metal/utils.m
@@ -29,13 +29,16 @@ void ff_metal_compute_encoder_dispatch(id<MTLDevice> device,
     NSUInteger h = pipeline.maxTotalThreadsPerThreadgroup / w;
     MTLSize threadsPerThreadgroup = MTLSizeMake(w, h, 1);
     BOOL fallback = YES;
+    // MAC_OS_X_VERSION_10_15 is only defined on SDKs new enough to include its functionality (including iOS, tvOS, etc)
+#ifdef MAC_OS_X_VERSION_10_15
     if (@available(macOS 10.15, iOS 11, tvOS 14.5, *)) {
         if ([device supportsFamily:MTLGPUFamilyCommon3]) {
             MTLSize threadsPerGrid = MTLSizeMake(width, height, 1);
             [encoder dispatchThreads:threadsPerGrid threadsPerThreadgroup:threadsPerThreadgroup];
             fallback = NO;
         }
     }
+#endif
     if (fallback) {
         MTLSize threadgroups = MTLSizeMake((width + w - 1) / w,
                                            (height + h - 1) / h,