public MediaType GetCurrentMediaType(int streamIndex = (int)SourceReaderIndex.FirstVideoStream)
{
return(sourceReader?.GetCurrentMediaType(streamIndex));
}
private void Initialize(SourceReader reader)
{
// Invalidate selection for all streams
reader.SetStreamSelection(SourceReaderIndex.AllStreams, false);
// Select only audio stream
reader.SetStreamSelection(SourceReaderIndex.FirstAudioStream, true);
// Get the media type for the current stream.
using (var mediaType = reader.GetNativeMediaType(SourceReaderIndex.FirstAudioStream, 0))
{
var majorType = mediaType.Get(MediaTypeAttributeKeys.MajorType);
if (majorType != MediaTypeGuids.Audio)
throw new InvalidOperationException("Input stream doesn't contain an audio stream.");
}
// Set the type on the source reader to use PCM
using (var partialType = new MediaType())
{
partialType.Set(MediaTypeAttributeKeys.MajorType, MediaTypeGuids.Audio);
partialType.Set(MediaTypeAttributeKeys.Subtype, AudioFormatGuids.Pcm);
reader.SetCurrentMediaType(SourceReaderIndex.FirstAudioStream, partialType);
}
// Retrieve back the real media type
using (var realMediaType = reader.GetCurrentMediaType(SourceReaderIndex.FirstAudioStream))
{
int sizeRef;
WaveFormat = realMediaType.ExtracttWaveFormat(out sizeRef);
}
Duration = new TimeSpan(reader.GetPresentationAttribute(SourceReaderIndex.MediaSource, PresentationDescriptionAttributeKeys.Duration));
}
public void Setup(int deviceIndex = 0)
{
logger.Debug("VideoCaptureSource::Setup()");
Activate[] activates = null;
using (var attributes = new MediaAttributes())
{
MediaFactory.CreateAttributes(attributes, 1);
attributes.Set(CaptureDeviceAttributeKeys.SourceType, CaptureDeviceAttributeKeys.SourceTypeVideoCapture.Guid);
activates = MediaFactory.EnumDeviceSources(attributes);
}
if (activates == null || activates.Length == 0)
{
logger.Error("SourceTypeVideoCapture not found");
Console.ReadKey();
}
foreach (var activate in activates)
{
Console.WriteLine("---------------------------------------------");
var friendlyName = activate.Get(CaptureDeviceAttributeKeys.FriendlyName);
var isHwSource = activate.Get(CaptureDeviceAttributeKeys.SourceTypeVidcapHwSource);
//var maxBuffers = activate.Get(CaptureDeviceAttributeKeys.SourceTypeVidcapMaxBuffers);
var symbolicLink = activate.Get(CaptureDeviceAttributeKeys.SourceTypeVidcapSymbolicLink);
logger.Info("FriendlyName " + friendlyName + "\r\n" +
"isHwSource " + isHwSource + "\r\n" +
//"maxBuffers " + maxBuffers +
"symbolicLink " + symbolicLink);
}
var currentActivator = activates[deviceIndex];
mediaSource = currentActivator.ActivateObject <MediaSource>();
foreach (var a in activates)
{
a.Dispose();
}
using (var mediaAttributes = new MediaAttributes(IntPtr.Zero))
{
MediaFactory.CreateAttributes(mediaAttributes, 2);
mediaAttributes.Set(SourceReaderAttributeKeys.EnableVideoProcessing, 1);
//var devMan = new DXGIDeviceManager();
//devMan.ResetDevice(device);
//mediaAttributes.Set(SourceReaderAttributeKeys.D3DManager, devMan);
//MediaFactory.CreateSourceReaderFromMediaSource(mediaSource, mediaAttributes, sourceReader);
sourceReader = new SourceReader(mediaSource, mediaAttributes);
}
Console.WriteLine("------------------CurrentMediaType-------------------");
var mediaType = sourceReader.GetCurrentMediaType(SourceReaderIndex.FirstVideoStream);
Console.WriteLine(MfTool.LogMediaType(mediaType));
var frameSize = MfTool.GetFrameSize(mediaType);
var subtype = mediaType.Get(MediaTypeAttributeKeys.Subtype);
mediaType?.Dispose();
//Device device = null;
int adapterIndex = 0;
using (var dxgiFactory = new SharpDX.DXGI.Factory1())
{
var adapter = dxgiFactory.Adapters1[adapterIndex];
device = new Device(adapter,
//DeviceCreationFlags.Debug |
DeviceCreationFlags.VideoSupport |
DeviceCreationFlags.BgraSupport);
using (var multiThread = device.QueryInterface <SharpDX.Direct3D11.Multithread>())
{
multiThread.SetMultithreadProtected(true);
}
}
SharedTexture = new Texture2D(device,
new Texture2DDescription
{
CpuAccessFlags = CpuAccessFlags.None,
BindFlags = BindFlags.RenderTarget | BindFlags.ShaderResource,
Format = SharpDX.DXGI.Format.B8G8R8A8_UNorm,
Width = frameSize.Width,
Height = frameSize.Height,
MipLevels = 1,
ArraySize = 1,
SampleDescription = { Count = 1, Quality = 0 },
Usage = ResourceUsage.Default,
//OptionFlags = ResourceOptionFlags.GdiCompatible//ResourceOptionFlags.None,
OptionFlags = ResourceOptionFlags.Shared,
});
texture = new Texture2D(device,
new Texture2DDescription
{
CpuAccessFlags = CpuAccessFlags.Read,
BindFlags = BindFlags.None,
Format = SharpDX.DXGI.Format.B8G8R8A8_UNorm,
Width = frameSize.Width,
Height = frameSize.Height,
MipLevels = 1,
ArraySize = 1,
SampleDescription = { Count = 1, Quality = 0 },
Usage = ResourceUsage.Staging,
OptionFlags = ResourceOptionFlags.None,
});
processor = new MfVideoProcessor(null);
var inProcArgs = new MfVideoArgs
{
Width = frameSize.Width,
Height = frameSize.Height,
// Format = VideoFormatGuids.Rgb24,
Format = subtype,//VideoFormatGuids.NV12,
};
var outProcArgs = new MfVideoArgs
{
Width = frameSize.Width,
Height = frameSize.Height,
Format = VideoFormatGuids.Argb32,
//Format = VideoFormatGuids.Rgb32,//VideoFormatGuids.Argb32,
};
processor.Setup(inProcArgs, outProcArgs);
//processor.SetMirror(VideoProcessorMirror.MirrorHorizontal);
processor.SetMirror(VideoProcessorMirror.MirrorVertical);
}
