Interop definitions for MediaFoundation thanks to Lucian Wischik for the initial work on many of these definitions (also various interfaces) n.b. the goal is to make as much of this internal as possible, and provide better .NET APIs using the MediaFoundationApi class instead. More...

Collaboration diagram for NAudio.MediaFoundation.MediaFoundationInterop:

Public Member Functions
static void	MFStartup (int version, int dwFlags=0)
	Initializes the Media Foundation platform.

static void	MFShutdown ()
	Shuts down the Media Foundation platform.

static void	MFCreateSourceReaderFromURL ([In, MarshalAs(UnmanagedType.LPWStr)] string pwszURL, [In] IMFAttributes pAttributes, [Out, MarshalAs(UnmanagedType.Interface)] out IMFSourceReader ppSourceReader)
	Creates a source reader from the specified URL.

static void	MFCreateSourceReaderFromByteStream ([In] IMFByteStream pByteStream, [In] IMFAttributes pAttributes, [Out, MarshalAs(UnmanagedType.Interface)] out IMFSourceReader ppSourceReader)
	Creates a source reader from a byte stream.

static void	MFCreateSinkWriterFromURL ([In, MarshalAs(UnmanagedType.LPWStr)] string pwszOutputURL, [In] IMFByteStream pByteStream, [In] IMFAttributes pAttributes, [Out] out IMFSinkWriter ppSinkWriter)
	Creates a sink writer for a specified output URL.

static void	MFCreateMFByteStreamOnStreamEx ([MarshalAs(UnmanagedType.IUnknown)] object punkStream, out IMFByteStream ppByteStream)
	Creates a byte stream object from the specified stream.

static void	MFCreateMFByteStreamOnStream ([In] IStream punkStream, out IMFByteStream ppByteStream)
	Creates a byte stream object based on the provided stream object.

static void	MFTEnumEx ([In] Guid guidCategory, [In] _MFT_ENUM_FLAG flags, [In] MFT_REGISTER_TYPE_INFO pInputType, [In] MFT_REGISTER_TYPE_INFO pOutputType, [Out] out IntPtr pppMFTActivate, [Out] out int pcMFTActivate)
	Enumerates Media Foundation transforms (MFTs) that match the specified search criteria.

static void	MFTranscodeGetAudioOutputAvailableTypes ([In, MarshalAs(UnmanagedType.LPStruct)] Guid guidSubType, [In] _MFT_ENUM_FLAG dwMFTFlags, [In] IMFAttributes pCodecConfig, [Out, MarshalAs(UnmanagedType.Interface)] out IMFCollection ppAvailableTypes)
	Retrieves the available audio output types for transcoding using the specified subtype and configuration.

Static Public Attributes
const int	MF_SOURCE_READER_ALL_STREAMS = unchecked((int)0xFFFFFFFE)
	All streams.

const int	MF_SOURCE_READER_FIRST_AUDIO_STREAM = unchecked((int)0xFFFFFFFD)
	First audio stream.

const int	MF_SOURCE_READER_FIRST_VIDEO_STREAM = unchecked((int)0xFFFFFFFC)
	First video stream.

const int	MF_SOURCE_READER_MEDIASOURCE = unchecked((int)0xFFFFFFFF)
	Media source.

const int	MF_SDK_VERSION = 0x2
	Media Foundation SDK Version.

const int	MF_API_VERSION = 0x70
	Media Foundation API Version.

const int	MF_VERSION = (MF_SDK_VERSION << 16) \| MF_API_VERSION
	Media Foundation Version.

Detailed Description

Interop definitions for MediaFoundation thanks to Lucian Wischik for the initial work on many of these definitions (also various interfaces) n.b. the goal is to make as much of this internal as possible, and provide better .NET APIs using the MediaFoundationApi class instead.

Member Function Documentation

◆ MFCreateMFByteStreamOnStream()

static void NAudio.MediaFoundation.MediaFoundationInterop.MFCreateMFByteStreamOnStream	(	[In] IStream	punkStream,
		out IMFByteStream	ppByteStream )

Creates a byte stream object based on the provided stream object.

Parameters

punkStream	The input stream object.
ppByteStream	When this method returns, contains the created byte stream object.

Exceptions

System.Runtime.InteropServices.COMException Thrown when the method fails to create the byte stream object.

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◆ MFCreateMFByteStreamOnStreamEx()

static void NAudio.MediaFoundation.MediaFoundationInterop.MFCreateMFByteStreamOnStreamEx	(	[MarshalAs(UnmanagedType.IUnknown)] object	punkStream,
		out IMFByteStream	ppByteStream )

Creates a byte stream object from the specified stream.

Parameters

punkStream	The stream from which to create the byte stream object.
ppByteStream	When this method returns, contains the created IMFByteStream object.

Exceptions

System.Runtime.InteropServices.COMException Thrown when a COM error occurs during the creation of the IMFByteStream object.

◆ MFCreateSinkWriterFromURL()

static void NAudio.MediaFoundation.MediaFoundationInterop.MFCreateSinkWriterFromURL	(	[In, MarshalAs(UnmanagedType.LPWStr)] string	pwszOutputURL,
		[In] IMFByteStream	pByteStream,
		[In] IMFAttributes	pAttributes,
		[Out] out IMFSinkWriter	ppSinkWriter )

Creates a sink writer for a specified output URL.

Parameters

pwszOutputURL	The URL of the output file.
pByteStream	The byte stream to write to.
pAttributes	The attributes to configure the sink writer.
ppSinkWriter	When this method returns, contains the pointer to the sink writer interface.

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◆ MFCreateSourceReaderFromByteStream()

static void NAudio.MediaFoundation.MediaFoundationInterop.MFCreateSourceReaderFromByteStream	(	[In] IMFByteStream	pByteStream,
		[In] IMFAttributes	pAttributes,
		[Out, MarshalAs(UnmanagedType.Interface)] out IMFSourceReader	ppSourceReader )

Creates a source reader from a byte stream.

Parameters

pByteStream	The byte stream from which to create the source reader.
pAttributes	Additional attributes for creating the source reader.
ppSourceReader	When this method returns, contains the created source reader.

This method creates a source reader from the specified byte stream and additional attributes. The source reader is used to read media data from a media source.

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◆ MFCreateSourceReaderFromURL()

static void NAudio.MediaFoundation.MediaFoundationInterop.MFCreateSourceReaderFromURL	(	[In, MarshalAs(UnmanagedType.LPWStr)] string	pwszURL,
		[In] IMFAttributes	pAttributes,
		[Out, MarshalAs(UnmanagedType.Interface)] out IMFSourceReader	ppSourceReader )

Creates a source reader from the specified URL.

Parameters

pwszURL	The URL of the media source.
pAttributes	A pointer to the IMFAttributes interface. Can be null.
ppSourceReader	Receives a pointer to the IMFSourceReader interface.

Exceptions

System.Runtime.InteropServices.COMException Thrown when a call to the underlying native COM method fails.

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◆ MFShutdown()

static void NAudio.MediaFoundation.MediaFoundationInterop.MFShutdown ( )

Shuts down the Media Foundation platform.

This method shuts down the Media Foundation platform. It is used to release all resources held by the platform and should be called when the platform is no longer needed.

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◆ MFStartup()

static void NAudio.MediaFoundation.MediaFoundationInterop.MFStartup	(	int	version,
		int	dwFlags = 0 )

Initializes the Media Foundation platform.

Parameters

version	The version of the Media Foundation platform to initialize.
dwFlags	Optional flags for initialization. Default is 0.

Exceptions

System.EntryPointNotFoundException The mfplat.dll library is not found.

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◆ MFTEnumEx()

static void NAudio.MediaFoundation.MediaFoundationInterop.MFTEnumEx	(	[In] Guid	guidCategory,
		[In] _MFT_ENUM_FLAG	flags,
		[In] MFT_REGISTER_TYPE_INFO	pInputType,
		[In] MFT_REGISTER_TYPE_INFO	pOutputType,
		[Out] out IntPtr	pppMFTActivate,
		[Out] out int	pcMFTActivate )

Enumerates Media Foundation transforms (MFTs) that match the specified search criteria.

Parameters

guidCategory	The category of MFTs to enumerate.
flags	Flags that control the enumeration.
pInputType	A pointer to an MFT_REGISTER_TYPE_INFO structure that specifies the input type to match.
pOutputType	A pointer to an MFT_REGISTER_TYPE_INFO structure that specifies the output type to match.
pppMFTActivate	Receives a pointer to an array of pointers to IMFActivate objects. The caller must release the objects when they are no longer needed by calling the IMFActivate::Release method.
pcMFTActivate	Receives the number of elements in the array pointed to by pppMFTActivate.

This method enumerates MFTs that match the specified search criteria. The search criteria are specified by the guidCategory, flags, pInputType, and pOutputType parameters. The pppMFTActivate parameter receives a pointer to an array of pointers to IMFActivate objects. The caller must release the objects when they are no longer needed by calling the IMFActivate::Release method. The pcMFTActivate parameter receives the number of elements in the array pointed to by pppMFTActivate.

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◆ MFTranscodeGetAudioOutputAvailableTypes()

static void NAudio.MediaFoundation.MediaFoundationInterop.MFTranscodeGetAudioOutputAvailableTypes	(	[In, MarshalAs(UnmanagedType.LPStruct)] Guid	guidSubType,
		[In] _MFT_ENUM_FLAG	dwMFTFlags,
		[In] IMFAttributes	pCodecConfig,
		[Out, MarshalAs(UnmanagedType.Interface)] out IMFCollection	ppAvailableTypes )

Retrieves the available audio output types for transcoding using the specified subtype and configuration.

Parameters

guidSubType	The subtype of the media format.
dwMFTFlags	Flags that control the enumeration behavior.
pCodecConfig	An IMFAttributes interface that contains codec-specific configuration data.
ppAvailableTypes	When this method returns, contains the collection of available output types for transcoding.

Exceptions

System.Runtime.InteropServices.COMException Thrown when a COM error occurs during the transcoding type retrieval.

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Member Data Documentation

◆ MF_API_VERSION

const int NAudio.MediaFoundation.MediaFoundationInterop.MF_API_VERSION = 0x70

static

Media Foundation API Version.

◆ MF_SDK_VERSION

const int NAudio.MediaFoundation.MediaFoundationInterop.MF_SDK_VERSION = 0x2

static

Media Foundation SDK Version.

◆ MF_SOURCE_READER_ALL_STREAMS

const int NAudio.MediaFoundation.MediaFoundationInterop.MF_SOURCE_READER_ALL_STREAMS = unchecked((int)0xFFFFFFFE)

static

All streams.

◆ MF_SOURCE_READER_FIRST_AUDIO_STREAM

const int NAudio.MediaFoundation.MediaFoundationInterop.MF_SOURCE_READER_FIRST_AUDIO_STREAM = unchecked((int)0xFFFFFFFD)

static

First audio stream.

◆ MF_SOURCE_READER_FIRST_VIDEO_STREAM

const int NAudio.MediaFoundation.MediaFoundationInterop.MF_SOURCE_READER_FIRST_VIDEO_STREAM = unchecked((int)0xFFFFFFFC)

static

First video stream.

◆ MF_SOURCE_READER_MEDIASOURCE

const int NAudio.MediaFoundation.MediaFoundationInterop.MF_SOURCE_READER_MEDIASOURCE = unchecked((int)0xFFFFFFFF)

static

Media source.

◆ MF_VERSION

const int NAudio.MediaFoundation.MediaFoundationInterop.MF_VERSION = (MF_SDK_VERSION << 16) | MF_API_VERSION

static

Media Foundation Version.

The documentation for this class was generated from the following file:

/Users/sumansaurabh/Documents/my-startup/xeno-rat/Plugins/LiveMicrophone/lib/NAudio.Wasapi/MediaFoundation/MediaFoundationInterop.cs

Public Member Functions

Static Public Attributes

Detailed Description

Member Function Documentation

◆ MFCreateMFByteStreamOnStream()

◆ MFCreateMFByteStreamOnStreamEx()

◆ MFCreateSinkWriterFromURL()

◆ MFCreateSourceReaderFromByteStream()

◆ MFCreateSourceReaderFromURL()

◆ MFShutdown()

◆ MFStartup()

◆ MFTEnumEx()

◆ MFTranscodeGetAudioOutputAvailableTypes()

Member Data Documentation

◆ MF_API_VERSION

◆ MF_SDK_VERSION

◆ MF_SOURCE_READER_ALL_STREAMS

◆ MF_SOURCE_READER_FIRST_AUDIO_STREAM

◆ MF_SOURCE_READER_FIRST_VIDEO_STREAM

◆ MF_SOURCE_READER_MEDIASOURCE

◆ MF_VERSION