Which method turns on hardware acceleration?

[kuangxj]

Issue Title (change this title!)

The CPU has always been high,and I want to reduce the performance of the CPU through hardware acceleration. I looked at the example and spent a lot of time not finding this method or example. Please tell me if you know.

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• Feature Request
• Question
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Expected Results

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Sample Code

XAML

<MainWindow>
</MainWindow>

C#

System.Console.WriteLine("Change Me Please!");

Command line ffplay

ffplay "hello.mp4"

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[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;
           }