/// <summary>
/// Starts rendering to the target.
/// </summary>
/// <param name="videoPixelSize">The pixel size of the video.</param>
protected override void StartRenderingInternal(Size2 videoPixelSize)
{
m_outStreamNet = base.TargetFile.OpenOutputStream();
m_outStream = new MF.ByteStream(m_outStreamNet);
// Pass dummy filename as described here:
// https://social.msdn.microsoft.com/forums/windowsapps/en-us/49bffa74-4e84-4fd6-9d67-42e8385611b8/video-sinkwriter-in-metro-app
m_sinkWriter = MF.MediaFactory.CreateSinkWriterFromURL(
this.DummyFileName, m_outStream.NativePointer, null);
m_videoPixelSize = videoPixelSize;
CreateMediaTarget(m_sinkWriter, m_videoPixelSize, out m_streamIndex);
// Configure input
using (MF.MediaType mediaTypeIn = new MF.MediaType())
{
mediaTypeIn.Set <Guid>(MF.MediaTypeAttributeKeys.MajorType, MF.MediaTypeGuids.Video);
mediaTypeIn.Set <Guid>(MF.MediaTypeAttributeKeys.Subtype, VIDEO_INPUT_FORMAT);
mediaTypeIn.Set <int>(MF.MediaTypeAttributeKeys.InterlaceMode, (int)MF.VideoInterlaceMode.Progressive);
mediaTypeIn.Set <long>(MF.MediaTypeAttributeKeys.FrameSize, MFHelper.GetMFEncodedIntsByValues(videoPixelSize.Width, videoPixelSize.Height));
mediaTypeIn.Set <long>(MF.MediaTypeAttributeKeys.FrameRate, MFHelper.GetMFEncodedIntsByValues(m_framerate, 1));
m_sinkWriter.SetInputMediaType(m_streamIndex, mediaTypeIn, null);
}
// Start writing the video file
m_sinkWriter.BeginWriting();
// Set initial frame index
m_frameIndex = -1;
}
/// <summary>
/// Creates an new instance of the <see cref="MediaFoundationEncoder"/> class.
/// </summary>
/// <param name="inputMediaType">Mediatype of the source to encode.</param>
/// <param name="stream">Stream which will be used to store the encoded data.</param>
/// <param name="targetMediaType">The format of the encoded data.</param>
/// <param name="containerType">See container type. For a list of all available container types, see <see cref="TranscodeContainerTypes"/>.</param>
public MediaFoundationEncoder(Stream stream, SharpDX.MediaFoundation.MediaType inputMediaType, MediaType targetMediaType,
Guid containerType)
{
if (stream == null)
{
throw new ArgumentNullException("stream");
}
if (!stream.CanWrite)
{
throw new ArgumentException("Stream is not writeable.");
}
if (!stream.CanRead)
{
throw new ArgumentException("Stream is not readable.");
}
if (inputMediaType == null)
{
throw new ArgumentNullException("inputMediaType");
}
if (targetMediaType == null)
{
throw new ArgumentNullException("targetMediaType");
}
if (containerType == Guid.Empty)
{
throw new ArgumentException("containerType");
}
_targetMediaType = targetMediaType;
SetTargetStream(stream, inputMediaType, targetMediaType, containerType);
}
private void OnMediaTypeChanged(SharpDX.MediaFoundation.MediaType mediaType)
{
if (videoRenderer != null)
{
videoRenderer.SetMediaType(mediaType);
}
}
/// <summary>
/// Encodes a file
/// </summary>
/// <param name="outputFile">Output filename (container type is deduced from the filename)</param>
/// <param name="inputProvider">Input provider (should be PCM, some encoders will also allow IEEE float)</param>
public void Encode(string outputFile, IWaveProvider inputProvider)
{
if (inputProvider.WaveFormat.Encoding != WaveFormatEncoding.Pcm && inputProvider.WaveFormat.Encoding != WaveFormatEncoding.IeeeFloat)
{
throw new ArgumentException("Encode input format must be PCM or IEEE float");
}
// possibly could use Marshaling to convert instead
// given that input should be PCM or IEEE float, this should work just fine
var sharpWf = SharpDX.Multimedia.WaveFormat.CreateCustomFormat(
(SharpDX.Multimedia.WaveFormatEncoding)inputProvider.WaveFormat.Encoding,
inputProvider.WaveFormat.SampleRate,
inputProvider.WaveFormat.Channels,
inputProvider.WaveFormat.AverageBytesPerSecond,
inputProvider.WaveFormat.BlockAlign,
inputProvider.WaveFormat.BitsPerSample);
using var inputMediaType = new MediaType();
var size = 18 + sharpWf.ExtraSize;
MediaFactory.InitMediaTypeFromWaveFormatEx(inputMediaType, new[] { sharpWf }, size);
using var writer = CreateSinkWriter(outputFile);
writer.AddStream(outputMediaType, out int streamIndex);
// n.b. can get 0xC00D36B4 - MF_E_INVALIDMEDIATYPE here
writer.SetInputMediaType(streamIndex, inputMediaType, null);
PerformEncode(writer, streamIndex, inputProvider);
}
/// <inheritdoc />
/// <summary>
/// Starts the encoder after all properties have been initialied
/// </summary>
public override void Start()
{
MediaFactory.Startup(MediaFactory.Version, MFSTARTUP_NOSOCKET);
using (var attrs = new MediaAttributes()) {
attrs.Set(TranscodeAttributeKeys.TranscodeContainertype, this.containerType);
attrs.Set(SinkWriterAttributeKeys.ReadwriteEnableHardwareTransforms, 1);
attrs.Set(SinkWriterAttributeKeys.LowLatency, true);
if (this.dxgiManager != null)
{
attrs.Set(SinkWriterAttributeKeys.D3DManager, this.dxgiManager);
}
// create byte stream and sink writer
this.byteStream = new ByteStream(DestinationStream);
this.sinkWriter = MediaFactory.CreateSinkWriterFromURL(null, this.byteStream, attrs);
// create output media type
using (var outMediaType = new SharpDX.MediaFoundation.MediaType()) {
outMediaType.Set(MediaTypeAttributeKeys.MajorType, MediaTypeGuids.Video);
outMediaType.Set(MediaTypeAttributeKeys.Subtype, this.videoFormat);
outMediaType.Set(MediaTypeAttributeKeys.AvgBitrate, this.bitRate);
outMediaType.Set(MediaTypeAttributeKeys.InterlaceMode, (int)VideoInterlaceMode.Progressive);
outMediaType.Set(MediaTypeAttributeKeys.FrameSize,
((long)FrameSize.Width << 32) | (uint)FrameSize.Height);
outMediaType.Set(MediaTypeAttributeKeys.FrameRate, ((long)this.frameRate << 32) | 1);
outMediaType.Set(MediaTypeAttributeKeys.PixelAspectRatio, (1 << 32) | 1);
this.sinkWriter.AddStream(outMediaType, out this.streamIdx);
}
// create input media type
using (var inMediaType = new SharpDX.MediaFoundation.MediaType()) {
inMediaType.Set(MediaTypeAttributeKeys.MajorType, MediaTypeGuids.Video);
inMediaType.Set(MediaTypeAttributeKeys.InterlaceMode, (int)VideoInterlaceMode.Progressive);
inMediaType.Set(MediaTypeAttributeKeys.FrameSize,
((long)FrameSize.Width << 32) | (uint)FrameSize.Height);
inMediaType.Set(MediaTypeAttributeKeys.FrameRate, ((long)this.frameRate << 32) | 1);
inMediaType.Set(MediaTypeAttributeKeys.PixelAspectRatio, (1 << 32) | 1);
try {
// use NV12 YUV encoding
inMediaType.Set(MediaTypeAttributeKeys.Subtype, VideoFormatGuids.NV12);
this.sinkWriter.SetInputMediaType(this.streamIdx, inMediaType, null);
} catch (SharpDXException exception)
when(exception.ResultCode == SharpDX.MediaFoundation.ResultCode.InvalidMediaType)
{
// XXX: fall back to ARGB32
inMediaType.Set(MediaTypeAttributeKeys.Subtype, VideoFormatGuids.Argb32);
this.sinkWriter.SetInputMediaType(this.streamIdx, inMediaType, null);
}
}
this.sinkWriter.BeginWriting();
}
}
private static string GetVideoFormat(SharpDX.MediaFoundation.MediaType mediaType)
{
// https://docs.microsoft.com/en-us/windows/desktop/medfound/video-subtype-guids
var subTypeId = mediaType.Get(MediaTypeAttributeKeys.Subtype);
var fourccEncoded = BitConverter.ToInt32(subTypeId.ToByteArray(), 0);
var fourcc = new FourCC(fourccEncoded);
return(fourcc.ToString());
}
/// <summary>
/// Creates a new encoder that encodes to the specified output media type
/// </summary>
/// <param name="outputMediaType">Desired output media type</param>
public SharpMediaFoundationEncoder(MediaType outputMediaType)
{
MediaManager.Startup();
if (outputMediaType == null)
{
throw new ArgumentNullException("outputMediaType");
}
this.outputMediaType = outputMediaType;
}
/// <summary>
/// Initializes a new instance of the <see cref="MediaFoundationVideoReader"/> class.
/// </summary>
/// <param name="captureDevice">The capture device.</param>
public MediaFoundationVideoReader(CaptureDeviceInfo captureDevice)
{
captureDevice.EnsureNotNullOrDisposed(nameof(captureDevice));
try
{
// Create the source reader
using (MF.MediaAttributes mediaAttributes = new MF.MediaAttributes(1))
{
// We need the 'EnableVideoProcessing' attribute because of the RGB32 format
// see (lowest post): http://msdn.developer-works.com/article/11388495/How+to+use+SourceReader+(for+H.264+to+RGB+conversion)%3F
mediaAttributes.Set(MF.SourceReaderAttributeKeys.EnableVideoProcessing, 1);
mediaAttributes.Set(MF.SourceReaderAttributeKeys.DisableDxva, 1);
mediaAttributes.Set(MF.SourceReaderAttributeKeys.DisconnectMediasourceOnShutdown, 1);
// Create the MediaSource object by given capture device
using (MF.MediaSource mediaSource = captureDevice.CreateMediaSource())
{
// Create the source reader
m_sourceReader = new MF.SourceReader(mediaSource, mediaAttributes);
}
}
// Apply source configuration
using (MF.MediaType mediaType = new MF.MediaType())
{
mediaType.Set(MF.MediaTypeAttributeKeys.MajorType, MF.MediaTypeGuids.Video);
mediaType.Set(MF.MediaTypeAttributeKeys.Subtype, MF.VideoFormatGuids.Rgb32);
m_sourceReader.SetCurrentMediaType(
MF.SourceReaderIndex.FirstVideoStream,
mediaType);
m_sourceReader.SetStreamSelection(MF.SourceReaderIndex.FirstVideoStream, new SharpDX.Mathematics.Interop.RawBool(true));
}
// Read some information about the source
using (MF.MediaType mediaType = m_sourceReader.GetCurrentMediaType(MF.SourceReaderIndex.FirstVideoStream))
{
long frameSizeLong = mediaType.Get(MF.MediaTypeAttributeKeys.FrameSize);
m_frameSize = new Size2(MFHelper.GetValuesByMFEncodedInts(frameSizeLong));
}
// Get additional properties
m_durationLong = 0;
m_characteristics = (MediaSourceCharacteristics_Internal)m_sourceReader.GetPresentationAttribute(
MF.SourceReaderIndex.MediaSource, MF.SourceReaderAttributeKeys.MediaSourceCharacteristics);
}
catch (Exception)
{
this.Dispose();
throw;
}
}
protected override void CreateMediaTarget(SinkWriter sinkWriter, Size2 videoPixelSize, out int streamIndex)
{
using (MF.MediaType mediaTypeOut = new MF.MediaType())
{
mediaTypeOut.Set<Guid>(MF.MediaTypeAttributeKeys.MajorType, MF.MediaTypeGuids.Video);
mediaTypeOut.Set<Guid>(MF.MediaTypeAttributeKeys.Subtype, VIDEO_ENCODING_FORMAT);
mediaTypeOut.Set<int>(MF.MediaTypeAttributeKeys.AvgBitrate, Bitrate);
mediaTypeOut.Set<int>(MF.MediaTypeAttributeKeys.InterlaceMode, (int)MF.VideoInterlaceMode.Progressive);
mediaTypeOut.Set<long>(MF.MediaTypeAttributeKeys.FrameSize, MFHelper.GetMFEncodedIntsByValues(videoPixelSize.Width, videoPixelSize.Height));
mediaTypeOut.Set<long>(MF.MediaTypeAttributeKeys.FrameRate, MFHelper.GetMFEncodedIntsByValues(Framerate, 1));
sinkWriter.AddStream(mediaTypeOut, out streamIndex);
}
}
/// <summary>
/// Creates a media target.
/// </summary>
/// <param name="sinkWriter">The previously created SinkWriter.</param>
/// <param name="videoPixelSize">The pixel size of the video.</param>
/// <param name="streamIndex">The stream index for the new target.</param>
protected override void CreateMediaTarget(MF.SinkWriter sinkWriter, Size2 videoPixelSize, out int streamIndex)
{
using (MF.MediaType mediaTypeOut = new MF.MediaType())
{
mediaTypeOut.Set <Guid>(MF.MediaTypeAttributeKeys.MajorType, MF.MediaTypeGuids.Video);
mediaTypeOut.Set <Guid>(MF.MediaTypeAttributeKeys.Subtype, VIDEO_ENCODING_FORMAT);
mediaTypeOut.Set <int>(MF.MediaTypeAttributeKeys.AvgBitrate, base.Bitrate * 1000);
mediaTypeOut.Set <int>(MF.MediaTypeAttributeKeys.InterlaceMode, (int)MF.VideoInterlaceMode.Progressive);
mediaTypeOut.Set <long>(MF.MediaTypeAttributeKeys.FrameSize, MFHelper.GetMFEncodedIntsByValues(videoPixelSize.Width, videoPixelSize.Height));
mediaTypeOut.Set <long>(MF.MediaTypeAttributeKeys.FrameRate, MFHelper.GetMFEncodedIntsByValues(base.Framerate, 1));
sinkWriter.AddStream(mediaTypeOut, out streamIndex);
}
}
/// <summary>
/// Gets an available media type for an output stream on this Media Foundation transform (MFT).
/// </summary>
/// <param name="dwOutputStreamID">Output stream identifier. To get the list of stream identifiers, call <strong><see cref="SharpDX.MediaFoundation.Transform.GetStreamIDs" /></strong>.</param>
/// <param name="dwTypeIndex">Index of the media type to retrieve. Media types are indexed from zero and returned in approximate order of preference.</param>
/// <param name="typeOut">Receives a pointer to the <strong><see cref="SharpDX.MediaFoundation.MediaType" /></strong> interface. The caller must release the interface.</param>
/// <returns><c>true</c> if A media type for an output stream is available, <c>false</c> otherwise</returns>
/// <msdn-id>ms703812</msdn-id>
/// <unmanaged>HRESULT IMFTransform::GetOutputAvailableType([In] unsigned int dwOutputStreamID,[In] unsigned int dwTypeIndex,[Out] IMFMediaType** ppType)</unmanaged>
/// <unmanaged-short>IMFTransform::GetOutputAvailableType</unmanaged-short>
public bool TryGetOutputAvailableType(int dwOutputStreamID, int dwTypeIndex, out MediaType typeOut)
{
bool mediaTypeAvailable = true;
var result = GetOutputAvailableType(dwOutputStreamID, dwTypeIndex, out typeOut);
//An object ran out of media types
if (result == ResultCode.NoMoreTypes)
{
mediaTypeAvailable = false;
}
else
{
result.CheckError();
}
return mediaTypeAvailable;
}
public MediaFoundationAudioWriter(MF.SinkWriter sinkWriter, ref WAVEFORMATEX waveFormat, int desiredBitRate = 192000)
{
var sharpWf = waveFormat.ToSharpDX();
// Information on configuring an AAC media type can be found here:
// http://msdn.microsoft.com/en-gb/library/windows/desktop/dd742785%28v=vs.85%29.aspx
var outputMediaType = SelectMediaType(AudioFormat, sharpWf, desiredBitRate);
if (outputMediaType == null)
{
throw new InvalidOperationException("No suitable encoders available");
}
var inputMediaType = new MF.MediaType();
var size = 18 + sharpWf.ExtraSize;
sinkWriter.AddStream(outputMediaType, out streamIndex);
MF.MediaFactory.InitMediaTypeFromWaveFormatEx(inputMediaType, new[] { sharpWf }, size);
sinkWriter.SetInputMediaType(streamIndex, inputMediaType, null);
}
public MediaFoundationVideoWriter(string filePath, Size2 videoPixelSize, Guid videoInputFormat, bool supportAudio = false)
{
bitrate = 1500000;
framerate = 15;
if (!MFInitialized)
{
// Initialize MF library. MUST be called before any MF related operations.
MF.MediaFactory.Startup(MF.MediaFactory.Version, 0);
}
sinkWriter = MF.MediaFactory.CreateSinkWriterFromURL(filePath, IntPtr.Zero, null);
this.videoPixelSize = videoPixelSize;
CreateMediaTarget(sinkWriter, videoPixelSize, out streamIndex);
// Configure input
using (MF.MediaType mediaTypeIn = new MF.MediaType())
{
mediaTypeIn.Set <Guid>(MF.MediaTypeAttributeKeys.MajorType, MF.MediaTypeGuids.Video);
mediaTypeIn.Set <Guid>(MF.MediaTypeAttributeKeys.Subtype, videoInputFormat);
mediaTypeIn.Set <int>(MF.MediaTypeAttributeKeys.InterlaceMode, (int)MF.VideoInterlaceMode.Progressive);
mediaTypeIn.Set <long>(MF.MediaTypeAttributeKeys.FrameSize, MFHelper.GetMFEncodedIntsByValues(videoPixelSize.Width, videoPixelSize.Height));
mediaTypeIn.Set <long>(MF.MediaTypeAttributeKeys.FrameRate, MFHelper.GetMFEncodedIntsByValues(framerate, 1));
sinkWriter.SetInputMediaType(streamIndex, mediaTypeIn, null);
}
if (supportAudio)
{
// initialize audio writer
var waveFormat = WAVEFORMATEX.DefaultPCM;
audioWriter = new MP3AudioWriter(sinkWriter, ref waveFormat);
}
// Start writing the video file. MUST be called before write operations.
sinkWriter.BeginWriting();
// Set initial frame index
frameIndex = -1;
}
/// <summary>
/// <p><strong>Applies to: </strong>desktop apps only</p><p> </p><p>Creates an activation object for the sample grabber media sink.</p>
/// </summary>
/// <param name="iMFMediaTypeRef"><dd> <p> Pointer to the <strong><see cref="SharpDX.MediaFoundation.MediaType"/></strong> interface, defining the media type for the sample grabber's input stream. </p> </dd></param>
/// <param name="iMFSampleGrabberSinkCallbackRef"><dd> <p> Pointer to the <strong><see cref="SharpDX.MediaFoundation.SampleGrabberSinkCallback"/></strong> interface of a callback object. The caller must implement this interface. </p> </dd></param>
/// <param name="iActivateOut"><dd> <p> Receives a reference to the <strong><see cref="SharpDX.MediaFoundation.Activate"/></strong> interface. Use this interface to complete the creation of the sample grabber. The caller must release the interface. </p> </dd></param>
/// <returns><p>If this function succeeds, it returns <strong><see cref="SharpDX.Result.Ok"/></strong>. Otherwise, it returns an <strong><see cref="SharpDX.Result"/></strong> error code.</p></returns>
/// <remarks>
/// <p>To create the sample grabber sink, call <strong><see cref="SharpDX.MediaFoundation.Activate.ActivateObject"/></strong> on the reference received in the <em>ppIActivate</em> parameter.</p><p>Before calling <strong>ActivateObject</strong>, you can configure the sample grabber by setting any of the following attributes on the <em>ppIActivate</em> reference:</p><ul> <li> <see cref="SharpDX.MediaFoundation.SampleGrabberSinkAttributeKeys.IgnoreClock"/> </li> <li> <strong><see cref="SharpDX.MediaFoundation.SampleGrabberSinkAttributeKeys.SampleTimeOffset"/></strong> </li> </ul>
/// </remarks>
/// <include file='.\..\Documentation\CodeComments.xml' path="/comments/comment[@id='MFCreateSampleGrabberSinkActivate']/*"/>
/// <msdn-id>ms702068</msdn-id>
/// <unmanaged>HRESULT MFCreateSampleGrabberSinkActivate([In] IMFMediaType* pIMFMediaType,[In] IMFSampleGrabberSinkCallback* pIMFSampleGrabberSinkCallback,[Out] IMFActivate** ppIActivate)</unmanaged>
/// <unmanaged-short>MFCreateSampleGrabberSinkActivate</unmanaged-short>
public static void CreateSampleGrabberSinkActivate(MediaType mediaType, SampleGrabberSinkCallback callback, out Activate activate)
{
MediaFactory.CreateSampleGrabberSinkActivate(mediaType, SampleGrabberSinkCallbackShadow.ToIntPtr(callback), out activate);
}
private void PlatformInitialize()
{
if (Topology != null)
return;
MediaManagerState.CheckStartup();
MediaFactory.CreateTopology(out _topology);
SharpDX.MediaFoundation.MediaSource mediaSource;
{
SourceResolver resolver;
MediaFactory.CreateSourceResolver(out resolver);
ObjectType otype;
ComObject source;
resolver.CreateObjectFromURL(FileName, (int)SourceResolverFlags.MediaSource, null, out otype,
out source);
mediaSource = source.QueryInterface<SharpDX.MediaFoundation.MediaSource>();
resolver.Dispose();
source.Dispose();
}
PresentationDescriptor presDesc;
mediaSource.CreatePresentationDescriptor(out presDesc);
for (var i = 0; i < presDesc.StreamDescriptorCount; i++)
{
Bool selected;
StreamDescriptor desc;
presDesc.GetStreamDescriptorByIndex(i, out selected, out desc);
if (selected)
{
TopologyNode sourceNode;
MediaFactory.CreateTopologyNode(TopologyType.SourceStreamNode, out sourceNode);
sourceNode.Set(TopologyNodeAttributeKeys.Source, mediaSource);
sourceNode.Set(TopologyNodeAttributeKeys.PresentationDescriptor, presDesc);
sourceNode.Set(TopologyNodeAttributeKeys.StreamDescriptor, desc);
TopologyNode outputNode;
MediaFactory.CreateTopologyNode(TopologyType.OutputNode, out outputNode);
var majorType = desc.MediaTypeHandler.MajorType;
if (majorType == MediaTypeGuids.Video)
{
Activate activate;
SampleGrabber = new VideoSampleGrabber();
_mediaType = new MediaType();
_mediaType.Set(MediaTypeAttributeKeys.MajorType, MediaTypeGuids.Video);
// Specify that we want the data to come in as RGB32.
_mediaType.Set(MediaTypeAttributeKeys.Subtype, new Guid("00000016-0000-0010-8000-00AA00389B71"));
MediaFactory.CreateSampleGrabberSinkActivate(_mediaType, SampleGrabber, out activate);
outputNode.Object = activate;
}
if (majorType == MediaTypeGuids.Audio)
{
Activate activate;
MediaFactory.CreateAudioRendererActivate(out activate);
outputNode.Object = activate;
}
_topology.AddNode(sourceNode);
_topology.AddNode(outputNode);
sourceNode.ConnectOutput(0, outputNode, 0);
sourceNode.Dispose();
outputNode.Dispose();
}
desc.Dispose();
}
presDesc.Dispose();
mediaSource.Dispose();
}
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 MediaFoundationAudioWriter(MF.SinkWriter sinkWriter, ref WAVEFORMATEX waveFormat, int desiredBitRate = 192000)
{
var sharpWf = waveFormat.ToSharpDX();
// Information on configuring an AAC media type can be found here:
// http://msdn.microsoft.com/en-gb/library/windows/desktop/dd742785%28v=vs.85%29.aspx
var outputMediaType = SelectMediaType(AudioFormat, sharpWf, desiredBitRate);
if (outputMediaType == null) throw new InvalidOperationException("No suitable encoders available");
var inputMediaType = new MF.MediaType();
var size = 18 + sharpWf.ExtraSize;
sinkWriter.AddStream(outputMediaType, out streamIndex);
MF.MediaFactory.InitMediaTypeFromWaveFormatEx(inputMediaType, new[] { sharpWf }, size);
sinkWriter.SetInputMediaType(streamIndex, inputMediaType, null);
}
public MediaFoundationVideoWriter(string filePath, Size2 videoPixelSize, Guid videoInputFormat, bool supportAudio = false)
{
bitrate = 1500000;
framerate = 15;
if (!MFInitialized)
{
// Initialize MF library. MUST be called before any MF related operations.
MF.MediaFactory.Startup(MF.MediaFactory.Version, 0);
}
sinkWriter = MF.MediaFactory.CreateSinkWriterFromURL(filePath, IntPtr.Zero, null);
this.videoPixelSize = videoPixelSize;
CreateMediaTarget(sinkWriter, videoPixelSize, out streamIndex);
// Configure input
using (MF.MediaType mediaTypeIn = new MF.MediaType())
{
mediaTypeIn.Set<Guid>(MF.MediaTypeAttributeKeys.MajorType, MF.MediaTypeGuids.Video);
mediaTypeIn.Set<Guid>(MF.MediaTypeAttributeKeys.Subtype, videoInputFormat);
mediaTypeIn.Set<int>(MF.MediaTypeAttributeKeys.InterlaceMode, (int)MF.VideoInterlaceMode.Progressive);
mediaTypeIn.Set<long>(MF.MediaTypeAttributeKeys.FrameSize, MFHelper.GetMFEncodedIntsByValues(videoPixelSize.Width, videoPixelSize.Height));
mediaTypeIn.Set<long>(MF.MediaTypeAttributeKeys.FrameRate, MFHelper.GetMFEncodedIntsByValues(framerate, 1));
sinkWriter.SetInputMediaType(streamIndex, mediaTypeIn, null);
}
if (supportAudio)
{
// initialize audio writer
var waveFormat = WAVEFORMATEX.DefaultPCM;
audioWriter = new MP3AudioWriter(sinkWriter, ref waveFormat);
}
// Start writing the video file. MUST be called before write operations.
sinkWriter.BeginWriting();
// Set initial frame index
frameIndex = -1;
}
/// <summary>
/// <p><strong>Applies to: </strong>desktop apps | Metro style apps</p><p>Sets the media type for a stream.</p><p>This media type defines that format that the Source Reader produces as output. It can differ from the native format provided by the media source. See Remarks for more information.</p>
/// </summary>
/// <param name="readerIndex">No documentation.</param>
/// <param name="mediaTypeRef">No documentation.</param>
/// <returns><p>The method returns an <strong><see cref="SharpDX.Result"/></strong>. Possible values include, but are not limited to, those in the following table.</p><table> <tr><th>Return code</th><th>Description</th></tr> <tr><td> <dl> <dt><strong><strong><see cref="SharpDX.Result.Ok"/></strong></strong></dt> </dl> </td><td> <p>The method succeeded.</p> </td></tr> <tr><td> <dl> <dt><strong><strong>MF_E_INVALIDMEDIATYPE</strong></strong></dt> </dl> </td><td> <p>At least one decoder was found for the native stream type, but the type specified by <em>pMediaType</em> was rejected.</p> </td></tr> <tr><td> <dl> <dt><strong><strong>MF_E_INVALIDREQUEST</strong></strong></dt> </dl> </td><td> <p>One or more sample requests are still pending.</p> </td></tr> <tr><td> <dl> <dt><strong><strong>MF_E_INVALIDSTREAMNUMBER</strong></strong></dt> </dl> </td><td> <p>The <em>dwStreamIndex</em> parameter is invalid.</p> </td></tr> <tr><td> <dl> <dt><strong><strong>MF_E_TOPO_CODEC_NOT_FOUND</strong></strong></dt> </dl> </td><td> <p>Could not find a decoder for the native stream type.</p> </td></tr> </table><p>?</p></returns>
/// <remarks>
/// <p>For each stream, you can set the media type to any of the following:</p><ul> <li>One of the native types offered by the media source. To enumerate the native types, call <strong><see cref="SharpDX.MediaFoundation.SourceReader.GetNativeMediaType"/></strong>.</li> <li>If the native media type is compressed, you can specify a corresponding uncompressed format. The Source Reader will search for a decoder that can decode from the native format to the specified uncompressed format.</li> </ul><p>The source reader does not support audio resampling. If you need to resample the audio, you can use the <strong>Audio Resampler DSP</strong>.</p><p>If you set the <see cref="SharpDX.MediaFoundation.SourceReaderAttributeKeys.EnableVideoProcessing"/> attribute to <strong>TRUE</strong> when you create the Source Reader, the Source Reader will convert YUV video to RGB-32. This conversion is not optimized for real-time video playback.</p><p>This interface is available on Windows?Vista if Platform Update Supplement for Windows?Vista is installed.</p>
/// </remarks>
/// <msdn-id>dd374667</msdn-id>
/// <unmanaged>HRESULT IMFSourceReader::SetCurrentMediaType([In] unsigned int dwStreamIndex,[In] unsigned int* pdwReserved,[In] IMFMediaType* pMediaType)</unmanaged>
/// <unmanaged-short>IMFSourceReader::SetCurrentMediaType</unmanaged-short>
public void SetCurrentMediaType(int readerIndex, MediaType mediaTypeRef)
{
SetCurrentMediaType(readerIndex, IntPtr.Zero, mediaTypeRef);
}
/// <summary>
/// Creates a new encoder that encodes to the specified output media type
/// </summary>
/// <param name="outputMediaType">Desired output media type</param>
public SharpMediaFoundationEncoder(MediaType outputMediaType)
{
MediaManager.Startup();
this.outputMediaType = outputMediaType ?? throw new ArgumentNullException(nameof(outputMediaType));
}
/// <summary>
/// <p><strong>Applies to: </strong>desktop apps only</p><p> </p><p>Creates an activation object for the sample grabber media sink.</p>
/// </summary>
/// <param name="iMFMediaTypeRef"><dd> <p> Pointer to the <strong><see cref="SharpDX.MediaFoundation.MediaType"/></strong> interface, defining the media type for the sample grabber's input stream. </p> </dd></param>
/// <param name="iMFSampleGrabberSinkCallbackRef"><dd> <p> Pointer to the <strong><see cref="SharpDX.MediaFoundation.SampleGrabberSinkCallback"/></strong> interface of a callback object. The caller must implement this interface. </p> </dd></param>
/// <param name="iActivateOut"><dd> <p> Receives a reference to the <strong><see cref="SharpDX.MediaFoundation.Activate"/></strong> interface. Use this interface to complete the creation of the sample grabber. The caller must release the interface. </p> </dd></param>
/// <returns><p>If this function succeeds, it returns <strong><see cref="SharpDX.Result.Ok"/></strong>. Otherwise, it returns an <strong><see cref="SharpDX.Result"/></strong> error code.</p></returns>
/// <remarks>
/// <p>To create the sample grabber sink, call <strong><see cref="SharpDX.MediaFoundation.Activate.ActivateObject"/></strong> on the reference received in the <em>ppIActivate</em> parameter.</p><p>Before calling <strong>ActivateObject</strong>, you can configure the sample grabber by setting any of the following attributes on the <em>ppIActivate</em> reference:</p><ul> <li> <see cref="SharpDX.MediaFoundation.SampleGrabberSinkAttributeKeys.IgnoreClock"/> </li> <li> <strong><see cref="SharpDX.MediaFoundation.SampleGrabberSinkAttributeKeys.SampleTimeOffset"/></strong> </li> </ul>
/// </remarks>
/// <include file='.\..\Documentation\CodeComments.xml' path="/comments/comment[@id='MFCreateSampleGrabberSinkActivate']/*"/>
/// <msdn-id>ms702068</msdn-id>
/// <unmanaged>HRESULT MFCreateSampleGrabberSinkActivate([In] IMFMediaType* pIMFMediaType,[In] IMFSampleGrabberSinkCallback* pIMFSampleGrabberSinkCallback,[Out] IMFActivate** ppIActivate)</unmanaged>
/// <unmanaged-short>MFCreateSampleGrabberSinkActivate</unmanaged-short>
public static void CreateSampleGrabberSinkActivate(MediaType mediaType, SampleGrabberSinkCallback callback, out Activate activate)
{
MediaFactory.CreateSampleGrabberSinkActivate(mediaType, SampleGrabberSinkCallbackShadow.ToIntPtr(callback), out activate);
}
/// <summary>
/// <p><strong>Applies to: </strong>desktop apps | Metro style apps</p><p>Sets the media type for a stream.</p><p>This media type defines that format that the Source Reader produces as output. It can differ from the native format provided by the media source. See Remarks for more information.</p>
/// </summary>
/// <param name="readerIndex">No documentation.</param>
/// <param name="mediaTypeRef">No documentation.</param>
/// <returns><p>The method returns an <strong><see cref="SharpDX.Result"/></strong>. Possible values include, but are not limited to, those in the following table.</p><table> <tr><th>Return code</th><th>Description</th></tr> <tr><td> <dl> <dt><strong><strong><see cref="SharpDX.Result.Ok"/></strong></strong></dt> </dl> </td><td> <p>The method succeeded.</p> </td></tr> <tr><td> <dl> <dt><strong><strong>MF_E_INVALIDMEDIATYPE</strong></strong></dt> </dl> </td><td> <p>At least one decoder was found for the native stream type, but the type specified by <em>pMediaType</em> was rejected.</p> </td></tr> <tr><td> <dl> <dt><strong><strong>MF_E_INVALIDREQUEST</strong></strong></dt> </dl> </td><td> <p>One or more sample requests are still pending.</p> </td></tr> <tr><td> <dl> <dt><strong><strong>MF_E_INVALIDSTREAMNUMBER</strong></strong></dt> </dl> </td><td> <p>The <em>dwStreamIndex</em> parameter is invalid.</p> </td></tr> <tr><td> <dl> <dt><strong><strong>MF_E_TOPO_CODEC_NOT_FOUND</strong></strong></dt> </dl> </td><td> <p>Could not find a decoder for the native stream type.</p> </td></tr> </table><p>?</p></returns>
/// <remarks>
/// <p>For each stream, you can set the media type to any of the following:</p><ul> <li>One of the native types offered by the media source. To enumerate the native types, call <strong><see cref="SharpDX.MediaFoundation.SourceReader.GetNativeMediaType"/></strong>.</li> <li>If the native media type is compressed, you can specify a corresponding uncompressed format. The Source Reader will search for a decoder that can decode from the native format to the specified uncompressed format.</li> </ul><p>The source reader does not support audio resampling. If you need to resample the audio, you can use the <strong>Audio Resampler DSP</strong>.</p><p>If you set the <see cref="SharpDX.MediaFoundation.SourceReaderAttributeKeys.EnableVideoProcessing"/> attribute to <strong>TRUE</strong> when you create the Source Reader, the Source Reader will convert YUV video to RGB-32. This conversion is not optimized for real-time video playback.</p><p>This interface is available on Windows?Vista if Platform Update Supplement for Windows?Vista is installed.</p>
/// </remarks>
/// <msdn-id>dd374667</msdn-id>
/// <unmanaged>HRESULT IMFSourceReader::SetCurrentMediaType([In] unsigned int dwStreamIndex,[In] unsigned int* pdwReserved,[In] IMFMediaType* pMediaType)</unmanaged>
/// <unmanaged-short>IMFSourceReader::SetCurrentMediaType</unmanaged-short>
public void SetCurrentMediaType(SourceReaderIndex readerIndex, MediaType mediaTypeRef)
{
SetCurrentMediaType((int)readerIndex, IntPtr.Zero, mediaTypeRef);
}
private void buttonSetup_Click(object sender, EventArgs e)
{
logger.Debug("buttonSetup_Click(...)");
sourceVideoFile = textBox1.Text;
videoForm = new VideoForm
{
BackColor = Color.Black,
//ClientSize = new Size(sampleArgs.Width, sampleArgs.Height),
StartPosition = FormStartPosition.CenterScreen,
};
videoForm.Visible = true;
if (presentationClock != null)
{
presentationClock.Dispose();
presentationClock = null;
}
MediaFactory.CreatePresentationClock(out presentationClock);
PresentationTimeSource timeSource = null;
try
{
MediaFactory.CreateSystemTimeSource(out timeSource);
presentationClock.TimeSource = timeSource;
}
finally
{
timeSource?.Dispose();
}
videoRenderer = new MfVideoRendererEx();
videoRenderer.Init(videoForm.Handle, presentationClock);
int sinkRequestSample = 0;
int count = 0;
fileSource = new VideoFileSource();
fileSource.Setup(sourceVideoFile, videoRenderer.D3DDeviceManager);
//videoRenderer.Prerolled += () =>
//{
// presentationClock.Start(MfTool.SecToMfTicks(1));
//};
fileSource.SampleReady += (flags, sample) =>
{
var _flags = (SourceReaderFlags)flags;
if (_flags == SourceReaderFlags.StreamTick)
{
}
else if (_flags == SourceReaderFlags.Currentmediatypechanged)
{
var newMediaType = fileSource.GetCurrentMediaType();
//var log = MfTool.LogMediaType(newMediaType);
//Console.WriteLine("================Currentmediatypechanged======================");
//Console.WriteLine(log);
videoRenderer?.SetMediaType(newMediaType);
newMediaType.Dispose();
}
if (sample != null)
{
var presentationTime = presentationClock.Time;
var sampleTime = sample.SampleTime;
var diff = sampleTime - presentationTime;
if (diff > 0)
{
var delay = (int)(MfTool.MfTicksToSec(diff) * 1000);
Console.WriteLine("Delay " + delay);
Thread.Sleep(delay);
}
sample.SampleTime = 0;
sample.SampleDuration = 0;
//videoRenderer.ProcessDxva2Sample(sample);
videoRenderer._ProcessDxva2Sample(sample);
//videoRenderer.ProcessSample(sample);
sample.Dispose();
count++;
}
};
fileSource.SourceStopped += () =>
{
Console.WriteLine("fileSource.SourceStopped()");
fileSource.Close();
};
var srcMediaType = fileSource.GetCurrentMediaType();
var subType = srcMediaType.Get(MediaTypeAttributeKeys.Subtype);
var frameSize = srcMediaType.Get(MediaTypeAttributeKeys.FrameSize);
var frameRate = srcMediaType.Get(MediaTypeAttributeKeys.FrameRate);
using (var mediaType = new SharpDX.MediaFoundation.MediaType())
{
mediaType.Set(MediaTypeAttributeKeys.MajorType, MediaTypeGuids.Video);
mediaType.Set(MediaTypeAttributeKeys.Subtype, VideoFormatGuids.NV12); //
mediaType.Set(MediaTypeAttributeKeys.FrameSize, frameSize);
mediaType.Set(MediaTypeAttributeKeys.InterlaceMode, 2);
mediaType.Set(MediaTypeAttributeKeys.AllSamplesIndependent, 1);
mediaType.Set(MediaTypeAttributeKeys.FrameRate, frameRate);
videoRenderer.SetMediaType(mediaType);
}
videoRenderer.RequestSample += () =>
{
//if (presentationClock != null)
//{
// presentationClock.GetState(0, out var clockState);
// if(clockState == ClockState.Running)
// {
// //fileSource.NextSample();
// }
//}
fileSource.NextSample();
sinkRequestSample++;
};
videoRenderer.RendererStopped += () =>
{
videoRenderer.Close();
GC.Collect();
};
videoRenderer.Resize(videoForm.ClientRectangle);
videoForm.Paint += (o, a) =>
{
videoRenderer.Repaint();
};
videoForm.SizeChanged += (o, a) =>
{
var rect = videoForm.ClientRectangle;
//Console.WriteLine(rect);
videoRenderer.Resize(rect);
};
}
/// <summary>
/// Initializes a new instance of the <see cref="MediaFoundationVideoReader"/> class.
/// </summary>
/// <param name="videoSource">The source video file.</param>
public MediaFoundationVideoReader(ResourceLink videoSource)
{
videoSource.EnsureNotNull(nameof(videoSource));
try
{
m_videoSource = videoSource;
// Create the source reader
using (MF.MediaAttributes mediaAttributes = new MF.MediaAttributes(1))
{
// We need the 'EnableVideoProcessing' attribute because of the RGB32 format
// see (lowest post): http://msdn.developer-works.com/article/11388495/How+to+use+SourceReader+(for+H.264+to+RGB+conversion)%3F
mediaAttributes.Set(MF.SourceReaderAttributeKeys.EnableVideoProcessing, 1);
mediaAttributes.Set(MF.SourceReaderAttributeKeys.DisableDxva, 1);
// Wrap the .net stream to a MF Bytestream
m_videoSourceStreamNet = m_videoSource.OpenInputStream();
m_videoSourceStream = new MF.ByteStream(m_videoSourceStreamNet);
try
{
using (MF.MediaAttributes byteStreamAttributes = m_videoSourceStream.QueryInterface <MF.MediaAttributes>())
{
byteStreamAttributes.Set(MF.ByteStreamAttributeKeys.OriginName, "Dummy." + videoSource.FileExtension);
}
}
catch (SharpDXException)
{
// The interface MF.MediaAttributes is not available on some platforms
// (occured during tests on Windows 7 without Platform Update)
}
// Create the sourcereader by custom native method (needed because of the ByteStream arg)
IntPtr sourceReaderPointer = IntPtr.Zero;
SharpDX.Result sdxResult = NativeMethods.MFCreateSourceReaderFromByteStream_Native(
m_videoSourceStream.NativePointer,
mediaAttributes.NativePointer,
out sourceReaderPointer);
sdxResult.CheckError();
m_sourceReader = new MF.SourceReader(sourceReaderPointer);
}
// Apply source configuration
using (MF.MediaType mediaType = new MF.MediaType())
{
mediaType.Set(MF.MediaTypeAttributeKeys.MajorType, MF.MediaTypeGuids.Video);
mediaType.Set(MF.MediaTypeAttributeKeys.Subtype, MF.VideoFormatGuids.Rgb32);
m_sourceReader.SetCurrentMediaType(
MF.SourceReaderIndex.FirstVideoStream,
mediaType);
m_sourceReader.SetStreamSelection(MF.SourceReaderIndex.FirstVideoStream, new SharpDX.Mathematics.Interop.RawBool(true));
}
// Read some information about the source
using (MF.MediaType mediaType = m_sourceReader.GetCurrentMediaType(MF.SourceReaderIndex.FirstVideoStream))
{
long frameSizeLong = mediaType.Get(MF.MediaTypeAttributeKeys.FrameSize);
m_frameSize = new Size2(MFHelper.GetValuesByMFEncodedInts(frameSizeLong));
}
// Get additional propertie3s
m_durationLong = m_sourceReader.GetPresentationAttribute(
MF.SourceReaderIndex.MediaSource, MF.PresentationDescriptionAttributeKeys.Duration);
m_characteristics = (MediaSourceCharacteristics_Internal)m_sourceReader.GetPresentationAttribute(
MF.SourceReaderIndex.MediaSource, MF.SourceReaderAttributeKeys.MediaSourceCharacteristics);
}
catch (Exception)
{
this.Dispose();
throw;
}
}
/// <summary>
///
/// </summary>
private void PlatformInitialize( byte[] bytes, Stream stream, string url )
{
if (Topology != null) {
return;
}
MediaFactory.CreateTopology(out _topology);
SharpDX.MediaFoundation.MediaSource mediaSource;
{
SourceResolver resolver = new SourceResolver();
ObjectType otype;
ComObject source = null;
if (url!=null) {
source = resolver.CreateObjectFromURL(url, SourceResolverFlags.MediaSource, null, out otype);
}
if (stream!=null) {
var bs = new ByteStream( stream );
source = resolver.CreateObjectFromStream(bs, null, SourceResolverFlags.MediaSource, null, out otype);
}
if (bytes!=null) {
var bs = new ByteStream( bytes );
source = resolver.CreateObjectFromStream(bs, null, SourceResolverFlags.MediaSource|SourceResolverFlags.ContentDoesNotHaveToMatchExtensionOrMimeType, null, out otype);
}
if (source==null) {
throw new ArgumentException("'stream' and 'url' are null!");
}
mediaSource = source.QueryInterface<SharpDX.MediaFoundation.MediaSource>();
resolver.Dispose();
source.Dispose();
}
PresentationDescriptor presDesc;
mediaSource.CreatePresentationDescriptor(out presDesc);
for (var i = 0; i < presDesc.StreamDescriptorCount; i++) {
RawBool selected = false;
StreamDescriptor desc;
presDesc.GetStreamDescriptorByIndex(i, out selected, out desc);
if (selected) {
TopologyNode sourceNode;
MediaFactory.CreateTopologyNode(TopologyType.SourceStreamNode, out sourceNode);
sourceNode.Set(TopologyNodeAttributeKeys.Source, mediaSource);
sourceNode.Set(TopologyNodeAttributeKeys.PresentationDescriptor, presDesc);
sourceNode.Set(TopologyNodeAttributeKeys.StreamDescriptor, desc);
TopologyNode outputNode;
MediaFactory.CreateTopologyNode(TopologyType.OutputNode, out outputNode);
var majorType = desc.MediaTypeHandler.MajorType;
if (majorType == MediaTypeGuids.Video) {
Activate activate;
sampleGrabber = new VideoSampleGrabber();
_mediaType = new MediaType();
_mediaType.Set(MediaTypeAttributeKeys.MajorType, MediaTypeGuids.Video);
// Specify that we want the data to come in as RGB32.
_mediaType.Set(MediaTypeAttributeKeys.Subtype, new Guid("00000016-0000-0010-8000-00AA00389B71"));
MediaFactory.CreateSampleGrabberSinkActivate(_mediaType, SampleGrabber, out activate);
outputNode.Object = activate;
long frameSize = desc.MediaTypeHandler.CurrentMediaType.Get<long>(MediaTypeAttributeKeys.FrameSize);
Width = (int)(frameSize >> 32);
Height = (int) (frameSize & 0x0000FFFF);
}
if (majorType == MediaTypeGuids.Audio)
{
Activate activate;
MediaFactory.CreateAudioRendererActivate(out activate);
outputNode.Object = activate;
}
_topology.AddNode(sourceNode);
_topology.AddNode(outputNode);
sourceNode.ConnectOutput(0, outputNode, 0);
Duration = new TimeSpan(presDesc.Get<long>(PresentationDescriptionAttributeKeys.Duration));
sourceNode.Dispose();
outputNode.Dispose();
}
desc.Dispose();
}
presDesc.Dispose();
mediaSource.Dispose();
videoFrame = new DynamicTexture(Game.Instance.RenderSystem, Width, Height, typeof(ColorBGRA), false, false);
}
private void PlatformInitialize()
{
if (Topology != null)
return;
//MediaManagerState.CheckStartup();
MediaFactory.CreateTopology(out _topology);
SharpDX.MediaFoundation.MediaSource mediaSource;
{
SourceResolver resolver = new SourceResolver();
ObjectType otype;
ComObject source = resolver.CreateObjectFromURL(FileName, SourceResolverFlags.MediaSource, null, out otype);
mediaSource = source.QueryInterface<SharpDX.MediaFoundation.MediaSource>();
resolver.Dispose();
source.Dispose();
}
PresentationDescriptor presDesc;
mediaSource.CreatePresentationDescriptor(out presDesc);
for (var i = 0; i < presDesc.StreamDescriptorCount; i++)
{
RawBool selected = false;
StreamDescriptor desc;
presDesc.GetStreamDescriptorByIndex(i, out selected, out desc);
if (selected)
{
TopologyNode sourceNode;
MediaFactory.CreateTopologyNode(TopologyType.SourceStreamNode, out sourceNode);
sourceNode.Set(TopologyNodeAttributeKeys.Source, mediaSource);
sourceNode.Set(TopologyNodeAttributeKeys.PresentationDescriptor, presDesc);
sourceNode.Set(TopologyNodeAttributeKeys.StreamDescriptor, desc);
TopologyNode outputNode;
MediaFactory.CreateTopologyNode(TopologyType.OutputNode, out outputNode);
var majorType = desc.MediaTypeHandler.MajorType;
if (majorType == MediaTypeGuids.Video)
{
Activate activate;
SampleGrabber = new VideoSampleGrabber();
_mediaType = new MediaType();
_mediaType.Set(MediaTypeAttributeKeys.MajorType, MediaTypeGuids.Video);
// Specify that we want the data to come in as RGB32.
_mediaType.Set(MediaTypeAttributeKeys.Subtype, new Guid("00000016-0000-0010-8000-00AA00389B71"));
MediaFactory.CreateSampleGrabberSinkActivate(_mediaType, SampleGrabber, out activate);
outputNode.Object = activate;
long frameSize = desc.MediaTypeHandler.CurrentMediaType.Get<long>(MediaTypeAttributeKeys.FrameSize);
Width = (int)(frameSize >> 32);
Height = (int) (frameSize & 0x0000FFFF);
}
if (majorType == MediaTypeGuids.Audio)
{
Activate activate;
MediaFactory.CreateAudioRendererActivate(out activate);
outputNode.Object = activate;
}
_topology.AddNode(sourceNode);
_topology.AddNode(outputNode);
sourceNode.ConnectOutput(0, outputNode, 0);
Duration = new TimeSpan(presDesc.Get<long>(PresentationDescriptionAttributeKeys.Duration));
sourceNode.Dispose();
outputNode.Dispose();
}
desc.Dispose();
}
presDesc.Dispose();
mediaSource.Dispose();
VideoFrame = new Texture2D(Game.Instance.GraphicsDevice, Width, Height, ColorFormat.Bgra8, false);
}