MFConvert Method (IMFFrame)
target media properties
result frame
number of frames rest in a converter
additional properties
converter ID
Converts the frame's format (include frame rate conversion) or just scale the video frame. 
Syntax

Parameters

_pPropsDest
target media properties
_ppFrameRes
result frame
_pnFrameRest
number of frames rest in a converter
_bsPropsList
additional properties
_bsConverterID
converter ID
See Also

Reference

IMFFrame Interface
IMFFrame Members