MFCalculateImageSize function (mfapi.h)

Retrieves the image size, in bytes, for an uncompressed video format.

Syntax

HRESULT MFCalculateImageSize(
  [in]  REFGUID guidSubtype,
  [in]  UINT32  unWidth,
  [in]  UINT32  unHeight,
  [out] UINT32  *pcbImageSize
);

[in] guidSubtype

Media subtype for the video format. For a list of subtypes, see Media Type GUIDs.

[in] unWidth

Width of the image, in pixels.

[in] unHeight

Height of the image, in pixels.

[out] pcbImageSize

Receives the size of each frame, in bytes. If the format is compressed or is not recognized, the value is zero.

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

Return code	Description
S_OK	The function succeeded.

Requirement	Value
Minimum supported client	Windows Vista [desktop apps only]
Minimum supported server	Windows Server 2008 [desktop apps only]
Target Platform	Windows
Header	mfapi.h
Library	Mfplat.lib
DLL	Mfplat.dll