Enable kVTVideoEncoderSpecification_EnableLowLatencyRateControl

Summary: title Reviewed By: jamescoggan Differential Revision: D33859892 fbshipit-source-id: e1a13fac63178df52681f52238bc71cb78aa237d
facebook · Feb 14, 2022 · b6a19c6 · b6a19c6
1 parent 33147af
commit b6a19c6
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/FBSimulatorControl/Framebuffer/FBSimulatorVideoStream.m b/FBSimulatorControl/Framebuffer/FBSimulatorVideoStream.m
@@ -206,6 +206,13 @@ - (BOOL)setupWithPixelBuffer:(CVPixelBufferRef)pixelBuffer error:(NSError **)err
   NSDictionary<NSString *, id> * encoderSpecification = @{
     (NSString *) kVTVideoEncoderSpecification_EnableHardwareAcceleratedVideoEncoder: @YES,
   };
+
+  if (@available(macOS 12.1, *)) {
+    encoderSpecification = @{
+      (NSString *) kVTVideoEncoderSpecification_RequireHardwareAcceleratedVideoEncoder: @YES,
+      (NSString *) kVTVideoEncoderSpecification_EnableLowLatencyRateControl: @YES,
+    };
+  }
   size_t sourceWidth = CVPixelBufferGetWidth(pixelBuffer);
   size_t sourceHeight = CVPixelBufferGetHeight(pixelBuffer);
   int32_t destinationWidth = (int32_t) sourceWidth;