Which method turns on hardware acceleration? about ffmediaelement

[OneB1t]

onMediaOpening

        // Setting Advanced Video Stream Options is also possible
        if (e.Options.VideoStream is StreamInfo videoStream)
        {
            // Example of forcing a codec for a stream
            // e.Options.DecoderCodec[videoStream.StreamIndex] = "mjpeg";

            // Hardware device priorities
            var deviceCandidates = new[]
            {
                //AVHWDeviceType.AV_HWDEVICE_TYPE_CUDA,
                //AVHWDeviceType.AV_HWDEVICE_TYPE_D3D11VA,
                AVHWDeviceType.AV_HWDEVICE_TYPE_DXVA2
            };

           foreach (var deviceType in deviceCandidates)
           {
               var accelerator = videoStream.HardwareDevices.FirstOrDefault(d => d.DeviceType == deviceType);
               if (accelerator == null) continue;
               e.Options.VideoHardwareDevice = accelerator;

               break;
           }