D3D11_VIDEO_DECODER_BUFFER_DESC structure (d3d11.h)
Describes a compressed buffer for decoding.
Syntax
typedef struct D3D11_VIDEO_DECODER_BUFFER_DESC {
D3D11_VIDEO_DECODER_BUFFER_TYPE BufferType;
UINT BufferIndex;
UINT DataOffset;
UINT DataSize;
UINT FirstMBaddress;
UINT NumMBsInBuffer;
UINT Width;
UINT Height;
UINT Stride;
UINT ReservedBits;
void *pIV;
UINT IVSize;
BOOL PartialEncryption;
D3D11_ENCRYPTED_BLOCK_INFO EncryptedBlockInfo;
} D3D11_VIDEO_DECODER_BUFFER_DESC;
Members
BufferType
The type of buffer, specified as a member of the D3D11_VIDEO_DECODER_BUFFER_TYPE enumeration.
BufferIndex
Reserved.
DataOffset
The offset of the relevant data from the beginning of the buffer, in bytes. This value must be zero.
DataSize
FirstMBaddress
The macroblock address of the first macroblock in the buffer. The macroblock address is given in raster scan order.
NumMBsInBuffer
The number of macroblocks of data in the buffer. This count includes skipped macroblocks.
Width
Reserved. Set to zero.
Height
Reserved. Set to zero.
Stride
Reserved. Set to zero.
ReservedBits
Reserved. Set to zero.
pIV
A pointer to a buffer that contains an initialization vector (IV) for encrypted data. If the decode buffer does not contain encrypted data, set this member to NULL.
IVSize
The size of the buffer specified in the pIV parameter. If pIV is NULL, set this member to zero.
PartialEncryption
If TRUE, the video surfaces are partially encrypted.
EncryptedBlockInfo
A D3D11_ENCRYPTED_BLOCK_INFO structure that specifies which bytes of the surface are encrypted.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 8 [desktop apps | UWP apps] |
| Minimum supported server | Windows Server 2012 [desktop apps | UWP apps] |
| Header | d3d11.h |