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VMRVideoDesc

構造体
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サイズx64: 36 バイト / x86: 36 バイト

サイズ=各フィールドのバイト数(x64/x86 で異なる場合は x64/x86 と併記)。x64/x86 列=フィールドのバイトオフセット(HSPで dupptr / lpoke / wpoke 等に使用)。

フィールド

フィールド型サイズx64x86説明
dwSizeDWORD4+0+0この構造体のサイズをバイト単位で示す。
dwSampleWidthDWORD4+4+4ビデオサンプルの幅をピクセル単位で示す。
dwSampleHeightDWORD4+8+8ビデオサンプルの高さをピクセル単位で示す。
SingleFieldPerSampleBOOL4+12+121サンプルに1フィールドのみ含まれるかを示す真偽値。
dwFourCCDWORD4+16+16ビデオフォーマットを示すFOURCCコードを示す。
InputSampleFreqVMRFrequency8+20+20入力サンプルの周波数を示すVMRFrequency構造体。
OutputFrameFreqVMRFrequency8+28+28出力フレームの周波数を示すVMRFrequency構造体。

各言語での定義

#include <windows.h>

// VMRFrequency  (x64 8 / x86 8 バイト)
typedef struct VMRFrequency {
    DWORD dwNumerator;
    DWORD dwDenominator;
} VMRFrequency;

// VMRVideoDesc  (x64 36 / x86 36 バイト)
typedef struct VMRVideoDesc {
    DWORD dwSize;
    DWORD dwSampleWidth;
    DWORD dwSampleHeight;
    BOOL SingleFieldPerSample;
    DWORD dwFourCC;
    VMRFrequency InputSampleFreq;
    VMRFrequency OutputFrameFreq;
} VMRVideoDesc;
using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct VMRFrequency
{
    public uint dwNumerator;
    public uint dwDenominator;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct VMRVideoDesc
{
    public uint dwSize;
    public uint dwSampleWidth;
    public uint dwSampleHeight;
    [MarshalAs(UnmanagedType.Bool)] public bool SingleFieldPerSample;
    public uint dwFourCC;
    public VMRFrequency InputSampleFreq;
    public VMRFrequency OutputFrameFreq;
}
Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure VMRFrequency
    Public dwNumerator As UInteger
    Public dwDenominator As UInteger
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure VMRVideoDesc
    Public dwSize As UInteger
    Public dwSampleWidth As UInteger
    Public dwSampleHeight As UInteger
    <MarshalAs(UnmanagedType.Bool)> Public SingleFieldPerSample As Boolean
    Public dwFourCC As UInteger
    Public InputSampleFreq As VMRFrequency
    Public OutputFrameFreq As VMRFrequency
End Structure
import ctypes
from ctypes import wintypes

class VMRFrequency(ctypes.Structure):
    _fields_ = [
        ("dwNumerator", wintypes.DWORD),
        ("dwDenominator", wintypes.DWORD),
    ]

class VMRVideoDesc(ctypes.Structure):
    _fields_ = [
        ("dwSize", wintypes.DWORD),
        ("dwSampleWidth", wintypes.DWORD),
        ("dwSampleHeight", wintypes.DWORD),
        ("SingleFieldPerSample", wintypes.BOOL),
        ("dwFourCC", wintypes.DWORD),
        ("InputSampleFreq", VMRFrequency),
        ("OutputFrameFreq", VMRFrequency),
    ]
#[repr(C)]
pub struct VMRFrequency {
    pub dwNumerator: u32,
    pub dwDenominator: u32,
}

#[repr(C)]
pub struct VMRVideoDesc {
    pub dwSize: u32,
    pub dwSampleWidth: u32,
    pub dwSampleHeight: u32,
    pub SingleFieldPerSample: i32,
    pub dwFourCC: u32,
    pub InputSampleFreq: VMRFrequency,
    pub OutputFrameFreq: VMRFrequency,
}
import "golang.org/x/sys/windows"

type VMRFrequency struct {
	dwNumerator uint32
	dwDenominator uint32
}

type VMRVideoDesc struct {
	dwSize uint32
	dwSampleWidth uint32
	dwSampleHeight uint32
	SingleFieldPerSample int32
	dwFourCC uint32
	InputSampleFreq VMRFrequency
	OutputFrameFreq VMRFrequency
}
type
  VMRFrequency = record
    dwNumerator: DWORD;
    dwDenominator: DWORD;
  end;

  VMRVideoDesc = record
    dwSize: DWORD;
    dwSampleWidth: DWORD;
    dwSampleHeight: DWORD;
    SingleFieldPerSample: BOOL;
    dwFourCC: DWORD;
    InputSampleFreq: VMRFrequency;
    OutputFrameFreq: VMRFrequency;
  end;
const VMRFrequency = extern struct {
    dwNumerator: u32,
    dwDenominator: u32,
};

const VMRVideoDesc = extern struct {
    dwSize: u32,
    dwSampleWidth: u32,
    dwSampleHeight: u32,
    SingleFieldPerSample: i32,
    dwFourCC: u32,
    InputSampleFreq: VMRFrequency,
    OutputFrameFreq: VMRFrequency,
};
type
  VMRFrequency {.bycopy.} = object
    dwNumerator: uint32
    dwDenominator: uint32

  VMRVideoDesc {.bycopy.} = object
    dwSize: uint32
    dwSampleWidth: uint32
    dwSampleHeight: uint32
    SingleFieldPerSample: int32
    dwFourCC: uint32
    InputSampleFreq: VMRFrequency
    OutputFrameFreq: VMRFrequency
struct VMRFrequency
{
    uint dwNumerator;
    uint dwDenominator;
}

struct VMRVideoDesc
{
    uint dwSize;
    uint dwSampleWidth;
    uint dwSampleHeight;
    int SingleFieldPerSample;
    uint dwFourCC;
    VMRFrequency InputSampleFreq;
    VMRFrequency OutputFrameFreq;
}

HSP用 定義

HSP3.7/3.8 は構造体機能が無いため4byte整数配列(dim)+peek/poke で操作(32/64bitでサイズ・位置が異なる場合はタブで分割)。IronHSP は NSTRUCT(#defstruct/stdim/->)で32/64bit共通。

; HSP3.7/3.8 は構造体機能が無いため、4byte整数の配列変数で操作します。(x64 レイアウト)
; VMRVideoDesc サイズ: 36 バイト(x64)
dim st, 9    ; 4byte整数×9(構造体サイズ 36 / 4 切り上げ)
; dwSize : DWORD (+0, 4byte)  st.0 = 値  /  値 = st.0   (lpoke/lpeek も可)
; dwSampleWidth : DWORD (+4, 4byte)  st.1 = 値  /  値 = st.1   (lpoke/lpeek も可)
; dwSampleHeight : DWORD (+8, 4byte)  st.2 = 値  /  値 = st.2   (lpoke/lpeek も可)
; SingleFieldPerSample : BOOL (+12, 4byte)  st.3 = 値  /  値 = st.3   (lpoke/lpeek も可)
; dwFourCC : DWORD (+16, 4byte)  st.4 = 値  /  値 = st.4   (lpoke/lpeek も可)
; InputSampleFreq : VMRFrequency (+20, 8byte)  varptr(st)+20 を基点に操作(8byte:入れ子/配列)
; OutputFrameFreq : VMRFrequency (+28, 8byte)  varptr(st)+28 を基点に操作(8byte:入れ子/配列)
; ※4byte境界の整数は添字 st.N(N=オフセット/4)で読み書き可。それ以外は peek/poke 系を使用。
; IronHSP は NSTRUCT(構造体)をサポート。32bit/64bit どちらでも同じコードで動作します。
; ※GUID・入れ子構造体はデフォルト型でないため、依存する #defstruct を先に定義(下記に同梱)。
#defstruct global VMRFrequency
    #field int dwNumerator
    #field int dwDenominator
#endstruct

#defstruct global VMRVideoDesc
    #field int dwSize
    #field int dwSampleWidth
    #field int dwSampleHeight
    #field bool SingleFieldPerSample
    #field int dwFourCC
    #field VMRFrequency InputSampleFreq
    #field VMRFrequency OutputFrameFreq
#endstruct

stdim st, VMRVideoDesc        ; NSTRUCT 変数を確保
st->dwSize = 100
mes "dwSize=" + st->dwSize