VMR9AllocationInfo structure (vmr9.h)
[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
The VMR9AllocationInfo structure describes the Direct3D surfaces that a VMR-9 Allocator-Presenter object should allocate.
Syntax
typedef struct _VMR9AllocationInfo {
DWORD dwFlags;
DWORD dwWidth;
DWORD dwHeight;
D3DFORMAT Format;
D3DPOOL Pool;
DWORD MinBuffers;
SIZE szAspectRatio;
SIZE szNativeSize;
} VMR9AllocationInfo;
Members
dwFlags
Specifies a bitwise combination of flags from the VMR9SurfaceAllocationFlags enumeration type.
dwWidth
Specifies the width of the surfaces.
dwHeight
Specifies the height of the surfaces.
Format
Specifies the surface format, as a D3DFORMAT type. The value D3DFMT_UNKNOWN (zero) indicates that the surface format should be compatible with the display.
Pool
Specifies the Direct3D memory pool to use for the surfaces, as a D3DPOOL type.
MinBuffers
Specifies the minimum number of buffers to create.
szAspectRatio
Specifies the video aspect ratio as a SIZE structure.
szNativeSize
Specifies the native video size as a SIZE structure.
Requirements
| Requirement | Value |
|---|---|
| Header | vmr9.h |