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For a 3D video format, specifies which view is the left view.

Data type

BOOL stored as UINT32


For 3D video, each video sample contains two views, which are designated first view and second view. The exact layout of the views in memory is indicated by the MF_MT_VIDEO_3D_FORMAT attribute.

FormatFirst ViewSecond View
Packed side-by-sideLeft half of the bufferRight half of the buffer
Packed top-to-bottomTop half of the bufferBottom half of the buffer
MultiviewBuffer index 0Buffer index 1
Base viewEntire frameNot present


By default, the first view is the left view, and the second view is the right view. If the left and right views are swapped, set the MF_MT_VIDEO_3D_FIRST_IS_LEFT attribute to FALSE in the media type.

Note  In base view format (MFVideo3DSampleFormat_BaseView), only the base view is retained, so this attribute does not apply.


Minimum supported client

Windows 8 [desktop apps | UWP apps]

Minimum supported server

Windows Server 2012 [desktop apps | UWP apps]



See also

Alphabetical List of Media Foundation Attributes



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