Interface IMFAudioMediaType

Namespace: MediaFoundation
Assembly: MediaFoundation.dll

Syntax

[Guid("26A0ADC3-CE26-4672-9304-69552EDD3FAF")]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
[Obsolete("To get the properties of the audio format, applications should use the media type attributes. If you need to convert the media type into a WAVEFORMATEX structure, call MFCreateWaveFormatExFromMFMediaType")]
public interface IMFAudioMediaType : IMFMediaType, IMFAttributes

Methods

Compare(IMFAttributes, MFAttributesMatchType, out Boolean)

Declaration
HResult Compare(IMFAttributes pTheirs, MFAttributesMatchType MatchType, out bool pbResult)
Parameters
IMFAttributes pTheirs

MFAttributesMatchType MatchType

System.Boolean pbResult

Returns
HResult

CompareItem(Guid, ConstPropVariant, out Boolean)

Declaration
HResult CompareItem(Guid guidKey, ConstPropVariant Value, out bool pbResult)
Parameters
System.Guid guidKey

ConstPropVariant Value

System.Boolean pbResult

Returns
HResult

CopyAllItems(IMFAttributes)

Declaration
HResult CopyAllItems(IMFAttributes pDest)
Parameters
IMFAttributes pDest

Returns
HResult

DeleteAllItems()

Declaration
HResult DeleteAllItems()
Returns
HResult

DeleteItem(Guid)

Declaration
HResult DeleteItem(Guid guidKey)
Parameters
System.Guid guidKey

Returns
HResult

FreeRepresentation(Guid, IntPtr)

Declaration
HResult FreeRepresentation(Guid guidRepresentation, IntPtr pvRepresentation)
Parameters
System.Guid guidRepresentation

System.IntPtr pvRepresentation

Returns
HResult

GetAllocatedBlob(Guid, out IntPtr, out Int32)

Declaration
HResult GetAllocatedBlob(Guid guidKey, out IntPtr ip, out int pcbSize)
Parameters
System.Guid guidKey

System.IntPtr ip

System.Int32 pcbSize

Returns
HResult

GetAllocatedString(Guid, out String, out Int32)

Declaration
HResult GetAllocatedString(Guid guidKey, out string ppwszValue, out int pcchLength)
Parameters
System.Guid guidKey

System.String ppwszValue

System.Int32 pcchLength

Returns
HResult

GetAudioFormat()

Declaration
[Obsolete("To get the properties of the audio format, applications should use the media type attributes. If you need to convert the media type into a WAVEFORMATEX structure, call MFCreateWaveFormatExFromMFMediaType")]
IntPtr GetAudioFormat()
Returns
System.IntPtr

GetBlob(Guid, Byte[], Int32, out Int32)

Declaration
HResult GetBlob(Guid guidKey, byte[] pBuf, int cbBufSize, out int pcbBlobSize)
Parameters
System.Guid guidKey

System.Byte[] pBuf

System.Int32 cbBufSize

System.Int32 pcbBlobSize

Returns
HResult

GetBlobSize(Guid, out Int32)

Declaration
HResult GetBlobSize(Guid guidKey, out int pcbBlobSize)
Parameters
System.Guid guidKey

System.Int32 pcbBlobSize

Returns
HResult

GetCount(out Int32)

Declaration
HResult GetCount(out int pcItems)
Parameters
System.Int32 pcItems

Returns
HResult

GetDouble(Guid, out Double)

Declaration
HResult GetDouble(Guid guidKey, out double pfValue)
Parameters
System.Guid guidKey

System.Double pfValue

Returns
HResult

GetGUID(Guid, out Guid)

Declaration
HResult GetGUID(Guid guidKey, out Guid pguidValue)
Parameters
System.Guid guidKey

System.Guid pguidValue

Returns
HResult

GetItem(Guid, PropVariant)

Declaration
HResult GetItem(Guid guidKey, PropVariant pValue)
Parameters
System.Guid guidKey

PropVariant pValue

Returns
HResult

GetItemByIndex(Int32, out Guid, PropVariant)

Declaration
HResult GetItemByIndex(int unIndex, out Guid pguidKey, PropVariant pValue)
Parameters
System.Int32 unIndex

System.Guid pguidKey

PropVariant pValue

Returns
HResult

GetItemType(Guid, out MFAttributeType)

Declaration
HResult GetItemType(Guid guidKey, out MFAttributeType pType)
Parameters
System.Guid guidKey

MFAttributeType pType

Returns
HResult

GetMajorType(out Guid)

Declaration
HResult GetMajorType(out Guid pguidMajorType)
Parameters
System.Guid pguidMajorType

Returns
HResult

GetRepresentation(Guid, out IntPtr)

Declaration
HResult GetRepresentation(Guid guidRepresentation, out IntPtr ppvRepresentation)
Parameters
System.Guid guidRepresentation

System.IntPtr ppvRepresentation

Returns
HResult

GetString(Guid, StringBuilder, Int32, out Int32)

Declaration
HResult GetString(Guid guidKey, StringBuilder pwszValue, int cchBufSize, out int pcchLength)
Parameters
System.Guid guidKey

System.Text.StringBuilder pwszValue

System.Int32 cchBufSize

System.Int32 pcchLength

Returns
HResult

GetStringLength(Guid, out Int32)

Declaration
HResult GetStringLength(Guid guidKey, out int pcchLength)
Parameters
System.Guid guidKey

System.Int32 pcchLength

Returns
HResult

GetUINT32(Guid, out Int32)

Declaration
HResult GetUINT32(Guid guidKey, out int punValue)
Parameters
System.Guid guidKey

System.Int32 punValue

Returns
HResult

GetUINT64(Guid, out Int64)

Declaration
HResult GetUINT64(Guid guidKey, out long punValue)
Parameters
System.Guid guidKey

System.Int64 punValue

Returns
HResult

GetUnknown(Guid, Guid, out Object)

Declaration
HResult GetUnknown(Guid guidKey, Guid riid, out object ppv)
Parameters
System.Guid guidKey

System.Guid riid

System.Object ppv

Returns
HResult

IsCompressedFormat(out Boolean)

Declaration
HResult IsCompressedFormat(out bool pfCompressed)
Parameters
System.Boolean pfCompressed

Returns
HResult

IsEqual(IMFMediaType, out MFMediaEqual)

Declaration
HResult IsEqual(IMFMediaType pIMediaType, out MFMediaEqual pdwFlags)
Parameters
IMFMediaType pIMediaType

MFMediaEqual pdwFlags

Returns
HResult

LockStore()

Declaration
HResult LockStore()
Returns
HResult

SetBlob(Guid, Byte[], Int32)

Declaration
HResult SetBlob(Guid guidKey, byte[] pBuf, int cbBufSize)
Parameters
System.Guid guidKey

System.Byte[] pBuf

System.Int32 cbBufSize

Returns
HResult

SetDouble(Guid, Double)

Declaration
HResult SetDouble(Guid guidKey, double fValue)
Parameters
System.Guid guidKey

System.Double fValue

Returns
HResult

SetGUID(Guid, Guid)

Declaration
HResult SetGUID(Guid guidKey, Guid guidValue)
Parameters
System.Guid guidKey

System.Guid guidValue

Returns
HResult

SetItem(Guid, ConstPropVariant)

Declaration
HResult SetItem(Guid guidKey, ConstPropVariant Value)
Parameters
System.Guid guidKey

ConstPropVariant Value

Returns
HResult

SetString(Guid, String)

Declaration
HResult SetString(Guid guidKey, string wszValue)
Parameters
System.Guid guidKey

System.String wszValue

Returns
HResult

SetUINT32(Guid, Int32)

Declaration
HResult SetUINT32(Guid guidKey, int unValue)
Parameters
System.Guid guidKey

System.Int32 unValue

Returns
HResult

SetUINT64(Guid, Int64)

Declaration
HResult SetUINT64(Guid guidKey, long unValue)
Parameters
System.Guid guidKey

System.Int64 unValue

Returns
HResult

SetUnknown(Guid, Object)

Declaration
HResult SetUnknown(Guid guidKey, object pUnknown)
Parameters
System.Guid guidKey

System.Object pUnknown

Returns
HResult

UnlockStore()

Declaration
HResult UnlockStore()
Returns
HResult

Extension Methods