ホーム › Media.WindowsMediaFormat › WMVIDEOINFOHEADER
WMVIDEOINFOHEADER
構造体サイズ=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 | x64 | x86 | 説明 |
|---|---|---|---|---|---|
| rcSource | RECT | 16 | +0 | +0 | 元映像から切り出すソース矩形(RECT)。 |
| rcTarget | RECT | 16 | +16 | +16 | 出力先に描画するターゲット矩形(RECT)。 |
| dwBitRate | DWORD | 4 | +32 | +32 | 映像ストリームのビットレート(bps)。 |
| dwBitErrorRate | DWORD | 4 | +36 | +36 | 想定されるビット誤り率。 |
| AvgTimePerFrame | LONGLONG | 8 | +40 | +40 | 1フレームあたりの平均表示時間(100ナノ秒単位)。 |
| bmiHeader | BITMAPINFOHEADER | 40 | +48 | +48 | 映像ビットマップ情報ヘッダ(BITMAPINFOHEADER)。 |
各言語での定義
#include <windows.h>
// RECT (x64 16 / x86 16 バイト)
typedef struct RECT {
INT left;
INT top;
INT right;
INT bottom;
} RECT;
// BITMAPINFOHEADER (x64 40 / x86 40 バイト)
typedef struct BITMAPINFOHEADER {
DWORD biSize;
INT biWidth;
INT biHeight;
WORD biPlanes;
WORD biBitCount;
DWORD biCompression;
DWORD biSizeImage;
INT biXPelsPerMeter;
INT biYPelsPerMeter;
DWORD biClrUsed;
DWORD biClrImportant;
} BITMAPINFOHEADER;
// WMVIDEOINFOHEADER (x64 88 / x86 88 バイト)
typedef struct WMVIDEOINFOHEADER {
RECT rcSource;
RECT rcTarget;
DWORD dwBitRate;
DWORD dwBitErrorRate;
LONGLONG AvgTimePerFrame;
BITMAPINFOHEADER bmiHeader;
} WMVIDEOINFOHEADER;using System;
using System.Runtime.InteropServices;
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct RECT
{
public int left;
public int top;
public int right;
public int bottom;
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct BITMAPINFOHEADER
{
public uint biSize;
public int biWidth;
public int biHeight;
public ushort biPlanes;
public ushort biBitCount;
public uint biCompression;
public uint biSizeImage;
public int biXPelsPerMeter;
public int biYPelsPerMeter;
public uint biClrUsed;
public uint biClrImportant;
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct WMVIDEOINFOHEADER
{
public RECT rcSource;
public RECT rcTarget;
public uint dwBitRate;
public uint dwBitErrorRate;
public long AvgTimePerFrame;
public BITMAPINFOHEADER bmiHeader;
}Imports System.Runtime.InteropServices
<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure RECT
Public left As Integer
Public top As Integer
Public right As Integer
Public bottom As Integer
End Structure
<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure BITMAPINFOHEADER
Public biSize As UInteger
Public biWidth As Integer
Public biHeight As Integer
Public biPlanes As UShort
Public biBitCount As UShort
Public biCompression As UInteger
Public biSizeImage As UInteger
Public biXPelsPerMeter As Integer
Public biYPelsPerMeter As Integer
Public biClrUsed As UInteger
Public biClrImportant As UInteger
End Structure
<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure WMVIDEOINFOHEADER
Public rcSource As RECT
Public rcTarget As RECT
Public dwBitRate As UInteger
Public dwBitErrorRate As UInteger
Public AvgTimePerFrame As Long
Public bmiHeader As BITMAPINFOHEADER
End Structureimport ctypes
from ctypes import wintypes
class RECT(ctypes.Structure):
_fields_ = [
("left", ctypes.c_int),
("top", ctypes.c_int),
("right", ctypes.c_int),
("bottom", ctypes.c_int),
]
class BITMAPINFOHEADER(ctypes.Structure):
_fields_ = [
("biSize", wintypes.DWORD),
("biWidth", ctypes.c_int),
("biHeight", ctypes.c_int),
("biPlanes", ctypes.c_ushort),
("biBitCount", ctypes.c_ushort),
("biCompression", wintypes.DWORD),
("biSizeImage", wintypes.DWORD),
("biXPelsPerMeter", ctypes.c_int),
("biYPelsPerMeter", ctypes.c_int),
("biClrUsed", wintypes.DWORD),
("biClrImportant", wintypes.DWORD),
]
class WMVIDEOINFOHEADER(ctypes.Structure):
_fields_ = [
("rcSource", RECT),
("rcTarget", RECT),
("dwBitRate", wintypes.DWORD),
("dwBitErrorRate", wintypes.DWORD),
("AvgTimePerFrame", ctypes.c_longlong),
("bmiHeader", BITMAPINFOHEADER),
]#[repr(C)]
pub struct RECT {
pub left: i32,
pub top: i32,
pub right: i32,
pub bottom: i32,
}
#[repr(C)]
pub struct BITMAPINFOHEADER {
pub biSize: u32,
pub biWidth: i32,
pub biHeight: i32,
pub biPlanes: u16,
pub biBitCount: u16,
pub biCompression: u32,
pub biSizeImage: u32,
pub biXPelsPerMeter: i32,
pub biYPelsPerMeter: i32,
pub biClrUsed: u32,
pub biClrImportant: u32,
}
#[repr(C)]
pub struct WMVIDEOINFOHEADER {
pub rcSource: RECT,
pub rcTarget: RECT,
pub dwBitRate: u32,
pub dwBitErrorRate: u32,
pub AvgTimePerFrame: i64,
pub bmiHeader: BITMAPINFOHEADER,
}import "golang.org/x/sys/windows"
type RECT struct {
left int32
top int32
right int32
bottom int32
}
type BITMAPINFOHEADER struct {
biSize uint32
biWidth int32
biHeight int32
biPlanes uint16
biBitCount uint16
biCompression uint32
biSizeImage uint32
biXPelsPerMeter int32
biYPelsPerMeter int32
biClrUsed uint32
biClrImportant uint32
}
type WMVIDEOINFOHEADER struct {
rcSource RECT
rcTarget RECT
dwBitRate uint32
dwBitErrorRate uint32
AvgTimePerFrame int64
bmiHeader BITMAPINFOHEADER
}type
RECT = record
left: Integer;
top: Integer;
right: Integer;
bottom: Integer;
end;
BITMAPINFOHEADER = record
biSize: DWORD;
biWidth: Integer;
biHeight: Integer;
biPlanes: Word;
biBitCount: Word;
biCompression: DWORD;
biSizeImage: DWORD;
biXPelsPerMeter: Integer;
biYPelsPerMeter: Integer;
biClrUsed: DWORD;
biClrImportant: DWORD;
end;
WMVIDEOINFOHEADER = record
rcSource: RECT;
rcTarget: RECT;
dwBitRate: DWORD;
dwBitErrorRate: DWORD;
AvgTimePerFrame: Int64;
bmiHeader: BITMAPINFOHEADER;
end;const RECT = extern struct {
left: i32,
top: i32,
right: i32,
bottom: i32,
};
const BITMAPINFOHEADER = extern struct {
biSize: u32,
biWidth: i32,
biHeight: i32,
biPlanes: u16,
biBitCount: u16,
biCompression: u32,
biSizeImage: u32,
biXPelsPerMeter: i32,
biYPelsPerMeter: i32,
biClrUsed: u32,
biClrImportant: u32,
};
const WMVIDEOINFOHEADER = extern struct {
rcSource: RECT,
rcTarget: RECT,
dwBitRate: u32,
dwBitErrorRate: u32,
AvgTimePerFrame: i64,
bmiHeader: BITMAPINFOHEADER,
};type
RECT {.bycopy.} = object
left: int32
top: int32
right: int32
bottom: int32
BITMAPINFOHEADER {.bycopy.} = object
biSize: uint32
biWidth: int32
biHeight: int32
biPlanes: uint16
biBitCount: uint16
biCompression: uint32
biSizeImage: uint32
biXPelsPerMeter: int32
biYPelsPerMeter: int32
biClrUsed: uint32
biClrImportant: uint32
WMVIDEOINFOHEADER {.bycopy.} = object
rcSource: RECT
rcTarget: RECT
dwBitRate: uint32
dwBitErrorRate: uint32
AvgTimePerFrame: int64
bmiHeader: BITMAPINFOHEADERstruct RECT
{
int left;
int top;
int right;
int bottom;
}
struct BITMAPINFOHEADER
{
uint biSize;
int biWidth;
int biHeight;
ushort biPlanes;
ushort biBitCount;
uint biCompression;
uint biSizeImage;
int biXPelsPerMeter;
int biYPelsPerMeter;
uint biClrUsed;
uint biClrImportant;
}
struct WMVIDEOINFOHEADER
{
RECT rcSource;
RECT rcTarget;
uint dwBitRate;
uint dwBitErrorRate;
long AvgTimePerFrame;
BITMAPINFOHEADER bmiHeader;
}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)
; WMVIDEOINFOHEADER サイズ: 88 バイト(x64)
dim st, 22 ; 4byte整数×22(構造体サイズ 88 / 4 切り上げ)
; rcSource : RECT (+0, 16byte) varptr(st)+0 を基点に操作(16byte:入れ子/配列)
; rcTarget : RECT (+16, 16byte) varptr(st)+16 を基点に操作(16byte:入れ子/配列)
; dwBitRate : DWORD (+32, 4byte) st.8 = 値 / 値 = st.8 (lpoke/lpeek も可)
; dwBitErrorRate : DWORD (+36, 4byte) st.9 = 値 / 値 = st.9 (lpoke/lpeek も可)
; AvgTimePerFrame : LONGLONG (+40, 8byte) qpoke st,40,値 / qpeek(st,40) ※IronHSPのみ。3.7/3.8は lpoke st,40,下位 : lpoke st,44,上位
; bmiHeader : BITMAPINFOHEADER (+48, 40byte) varptr(st)+48 を基点に操作(40byte: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 RECT
#field int left
#field int top
#field int right
#field int bottom
#endstruct
#defstruct global BITMAPINFOHEADER
#field int biSize
#field int biWidth
#field int biHeight
#field short biPlanes
#field short biBitCount
#field int biCompression
#field int biSizeImage
#field int biXPelsPerMeter
#field int biYPelsPerMeter
#field int biClrUsed
#field int biClrImportant
#endstruct
#defstruct global WMVIDEOINFOHEADER
#field RECT rcSource
#field RECT rcTarget
#field int dwBitRate
#field int dwBitErrorRate
#field int64 AvgTimePerFrame
#field BITMAPINFOHEADER bmiHeader
#endstruct
stdim st, WMVIDEOINFOHEADER ; NSTRUCT 変数を確保
st->dwBitRate = 100
mes "dwBitRate=" + st->dwBitRate