VMR9SurfaceAllocationFlags enumeration (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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 VMR9SurfaceAllocationFlags enumeration type is used with the IVMRSurfaceAllocator9::InitializeDevice method to specify surface creation parameters (VMR-9 only).
Syntax
typedef enum __MIDL___MIDL_itf_vmr9_0000_0001_0001 {
VMR9AllocFlag_3DRenderTarget = 0x1,
VMR9AllocFlag_DXVATarget = 0x2,
VMR9AllocFlag_TextureSurface = 0x4,
VMR9AllocFlag_OffscreenSurface = 0x8,
VMR9AllocFlag_RGBDynamicSwitch = 0x10,
VMR9AllocFlag_UsageReserved = 0xe0,
VMR9AllocFlag_UsageMask = 0xff
} VMR9SurfaceAllocationFlags;
Constants
VMR9AllocFlag_3DRenderTargetValue: 0x1 Indicates that the surface is a Direct3D render target. |
VMR9AllocFlag_DXVATargetValue: 0x2 Indicates that the render target supports DXVA. |
VMR9AllocFlag_TextureSurfaceValue: 0x4 Indicates that the target is a Direct3D texture surface. |
VMR9AllocFlag_OffscreenSurfaceValue: 0x8 Indicates an offscreen surface. |
VMR9AllocFlag_RGBDynamicSwitchValue: 0x10 In YUV mixing mode, indicates that the mixer can accept RGB formats in addition to the specified YUV format. The allocator-presenter can switch between the formats dynamically. This flag is only valid in YUV mixing mode. |
VMR9AllocFlag_UsageReservedValue: 0xe0 Reserved for future use. |
VMR9AllocFlag_UsageMaskValue: 0xff Bitwise OR of all flags; not used by applications |
Remarks
The VMR9AllocFlag_TextureSurface flag can be combined with the VMR9AllocFlag_DXVATarget and VMR9AllocFlag_3DRenderTarget flags.
Requirements
| Header | vmr9.h |