For a 3D video format, specifies which view is the base view.
BOOL stored as UINT32
GUID MF_MT_VIDEO_3D_LEFT_IS_BASE = {0x6d4b7bff,0x5629,0x4404,{0x94,0x8c,0xc6,0x34,0xf4,0xce,0x26,0xd4} }
By default, the left view in a 3D video sequence is the base view. If the right view is the base view, set this attribute to FALSE.
To convert stereoscopic video to 2D, keep the base view and discard the other view.
Header: Declared in mfapi.h.