IMFVideoSampleAllocator::InitializeSampleAllocator method (mfidl.h)

Specifies the number of samples to allocate and the media type for the samples.

Syntax

HRESULT InitializeSampleAllocator(
  [in] DWORD        cRequestedFrames,
  [in] IMFMediaType *pMediaType
);

[in] cRequestedFrames

Number of samples to allocate.

[in] pMediaType

Pointer to the IMFMediaType interface of a media type that describes the video format.

The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.

Return code	Description
S_OK	The method succeeded.
MF_E_INVALIDMEDIATYPE	Invalid media type.

Requirement	Value
Minimum supported client	Windows Vista [desktop apps \| UWP apps]
Minimum supported server	Windows Server 2008 [desktop apps \| UWP apps]
Target Platform	Windows
Header	mfidl.h
Library	Mfuuid.lib