D3D11_VIDEO_DECODER_BUFFER_DESC

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct D3D11_ENCRYPTED_BLOCK_INFO
{
    public uint NumEncryptedBytesAtBeginning;
    public uint NumBytesInSkipPattern;
    public uint NumBytesInEncryptPattern;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct D3D11_VIDEO_DECODER_BUFFER_DESC
{
    public int BufferType;
    public uint BufferIndex;
    public uint DataOffset;
    public uint DataSize;
    public uint FirstMBaddress;
    public uint NumMBsInBuffer;
    public uint Width;
    public uint Height;
    public uint Stride;
    public uint ReservedBits;
    public IntPtr pIV;
    public uint IVSize;
    [MarshalAs(UnmanagedType.Bool)] public bool PartialEncryption;
    public D3D11_ENCRYPTED_BLOCK_INFO EncryptedBlockInfo;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure D3D11_ENCRYPTED_BLOCK_INFO
    Public NumEncryptedBytesAtBeginning As UInteger
    Public NumBytesInSkipPattern As UInteger
    Public NumBytesInEncryptPattern As UInteger
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure D3D11_VIDEO_DECODER_BUFFER_DESC
    Public BufferType As Integer
    Public BufferIndex As UInteger
    Public DataOffset As UInteger
    Public DataSize As UInteger
    Public FirstMBaddress As UInteger
    Public NumMBsInBuffer As UInteger
    Public Width As UInteger
    Public Height As UInteger
    Public Stride As UInteger
    Public ReservedBits As UInteger
    Public pIV As IntPtr
    Public IVSize As UInteger
    <MarshalAs(UnmanagedType.Bool)> Public PartialEncryption As Boolean
    Public EncryptedBlockInfo As D3D11_ENCRYPTED_BLOCK_INFO
End Structure

import ctypes
from ctypes import wintypes

class D3D11_ENCRYPTED_BLOCK_INFO(ctypes.Structure):
    _fields_ = [
        ("NumEncryptedBytesAtBeginning", wintypes.DWORD),
        ("NumBytesInSkipPattern", wintypes.DWORD),
        ("NumBytesInEncryptPattern", wintypes.DWORD),
    ]

class D3D11_VIDEO_DECODER_BUFFER_DESC(ctypes.Structure):
    _fields_ = [
        ("BufferType", ctypes.c_int),
        ("BufferIndex", wintypes.DWORD),
        ("DataOffset", wintypes.DWORD),
        ("DataSize", wintypes.DWORD),
        ("FirstMBaddress", wintypes.DWORD),
        ("NumMBsInBuffer", wintypes.DWORD),
        ("Width", wintypes.DWORD),
        ("Height", wintypes.DWORD),
        ("Stride", wintypes.DWORD),
        ("ReservedBits", wintypes.DWORD),
        ("pIV", ctypes.c_void_p),
        ("IVSize", wintypes.DWORD),
        ("PartialEncryption", wintypes.BOOL),
        ("EncryptedBlockInfo", D3D11_ENCRYPTED_BLOCK_INFO),
    ]

#[repr(C)]
pub struct D3D11_ENCRYPTED_BLOCK_INFO {
    pub NumEncryptedBytesAtBeginning: u32,
    pub NumBytesInSkipPattern: u32,
    pub NumBytesInEncryptPattern: u32,
}

#[repr(C)]
pub struct D3D11_VIDEO_DECODER_BUFFER_DESC {
    pub BufferType: i32,
    pub BufferIndex: u32,
    pub DataOffset: u32,
    pub DataSize: u32,
    pub FirstMBaddress: u32,
    pub NumMBsInBuffer: u32,
    pub Width: u32,
    pub Height: u32,
    pub Stride: u32,
    pub ReservedBits: u32,
    pub pIV: *mut core::ffi::c_void,
    pub IVSize: u32,
    pub PartialEncryption: i32,
    pub EncryptedBlockInfo: D3D11_ENCRYPTED_BLOCK_INFO,
}

import "golang.org/x/sys/windows"

type D3D11_ENCRYPTED_BLOCK_INFO struct {
	NumEncryptedBytesAtBeginning uint32
	NumBytesInSkipPattern uint32
	NumBytesInEncryptPattern uint32
}

type D3D11_VIDEO_DECODER_BUFFER_DESC struct {
	BufferType int32
	BufferIndex uint32
	DataOffset uint32
	DataSize uint32
	FirstMBaddress uint32
	NumMBsInBuffer uint32
	Width uint32
	Height uint32
	Stride uint32
	ReservedBits uint32
	pIV uintptr
	IVSize uint32
	PartialEncryption int32
	EncryptedBlockInfo D3D11_ENCRYPTED_BLOCK_INFO
}

type
  D3D11_ENCRYPTED_BLOCK_INFO = record
    NumEncryptedBytesAtBeginning: DWORD;
    NumBytesInSkipPattern: DWORD;
    NumBytesInEncryptPattern: DWORD;
  end;

  D3D11_VIDEO_DECODER_BUFFER_DESC = record
    BufferType: Integer;
    BufferIndex: DWORD;
    DataOffset: DWORD;
    DataSize: DWORD;
    FirstMBaddress: DWORD;
    NumMBsInBuffer: DWORD;
    Width: DWORD;
    Height: DWORD;
    Stride: DWORD;
    ReservedBits: DWORD;
    pIV: Pointer;
    IVSize: DWORD;
    PartialEncryption: BOOL;
    EncryptedBlockInfo: D3D11_ENCRYPTED_BLOCK_INFO;
  end;

const D3D11_ENCRYPTED_BLOCK_INFO = extern struct {
    NumEncryptedBytesAtBeginning: u32,
    NumBytesInSkipPattern: u32,
    NumBytesInEncryptPattern: u32,
};

const D3D11_VIDEO_DECODER_BUFFER_DESC = extern struct {
    BufferType: i32,
    BufferIndex: u32,
    DataOffset: u32,
    DataSize: u32,
    FirstMBaddress: u32,
    NumMBsInBuffer: u32,
    Width: u32,
    Height: u32,
    Stride: u32,
    ReservedBits: u32,
    pIV: ?*anyopaque,
    IVSize: u32,
    PartialEncryption: i32,
    EncryptedBlockInfo: D3D11_ENCRYPTED_BLOCK_INFO,
};

type
  D3D11_ENCRYPTED_BLOCK_INFO {.bycopy.} = object
    NumEncryptedBytesAtBeginning: uint32
    NumBytesInSkipPattern: uint32
    NumBytesInEncryptPattern: uint32

  D3D11_VIDEO_DECODER_BUFFER_DESC {.bycopy.} = object
    BufferType: int32
    BufferIndex: uint32
    DataOffset: uint32
    DataSize: uint32
    FirstMBaddress: uint32
    NumMBsInBuffer: uint32
    Width: uint32
    Height: uint32
    Stride: uint32
    ReservedBits: uint32
    pIV: pointer
    IVSize: uint32
    PartialEncryption: int32
    EncryptedBlockInfo: D3D11_ENCRYPTED_BLOCK_INFO

struct D3D11_ENCRYPTED_BLOCK_INFO
{
    uint NumEncryptedBytesAtBeginning;
    uint NumBytesInSkipPattern;
    uint NumBytesInEncryptPattern;
}

struct D3D11_VIDEO_DECODER_BUFFER_DESC
{
    int BufferType;
    uint BufferIndex;
    uint DataOffset;
    uint DataSize;
    uint FirstMBaddress;
    uint NumMBsInBuffer;
    uint Width;
    uint Height;
    uint Stride;
    uint ReservedBits;
    void* pIV;
    uint IVSize;
    int PartialEncryption;
    D3D11_ENCRYPTED_BLOCK_INFO EncryptedBlockInfo;
}