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
);
Parameters
[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.
Return value
The function returns an HRESULT. Possible values include, but are not limited to, those in the following table.
| Return code | Description |
|---|---|
|
The function succeeded. |
Requirements
| 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 |