Win32 API 日本語リファレンス
ホームMedia.MediaFoundation › MFInitMediaTypeFromVideoInfoHeader

MFInitMediaTypeFromVideoInfoHeader

関数
VIDEOINFOHEADERからメディア型を初期化する。
DLLMFPlat.dll呼出規約winapi対応OSWindows Vista 以降

シグネチャ

// MFPlat.dll
#include <windows.h>

HRESULT MFInitMediaTypeFromVideoInfoHeader(
    IMFMediaType* pMFType,
    const VIDEOINFOHEADER* pVIH,
    DWORD cbBufSize,
    const GUID* pSubtype   // optional
);

パラメーター

名前方向
pMFTypeIMFMediaType*in
pVIHVIDEOINFOHEADER*in
cbBufSizeDWORDin
pSubtypeGUID*inoptional

戻り値の型: HRESULT

各言語での呼び出し定義

// MFPlat.dll
#include <windows.h>

HRESULT MFInitMediaTypeFromVideoInfoHeader(
    IMFMediaType* pMFType,
    const VIDEOINFOHEADER* pVIH,
    DWORD cbBufSize,
    const GUID* pSubtype   // optional
);
[DllImport("MFPlat.dll", ExactSpelling = true)]
static extern int MFInitMediaTypeFromVideoInfoHeader(
    IntPtr pMFType,   // IMFMediaType*
    IntPtr pVIH,   // VIDEOINFOHEADER*
    uint cbBufSize,   // DWORD
    IntPtr pSubtype   // GUID* optional
);
<DllImport("MFPlat.dll", ExactSpelling:=True)>
Public Shared Function MFInitMediaTypeFromVideoInfoHeader(
    pMFType As IntPtr,   ' IMFMediaType*
    pVIH As IntPtr,   ' VIDEOINFOHEADER*
    cbBufSize As UInteger,   ' DWORD
    pSubtype As IntPtr   ' GUID* optional
) As Integer
End Function
' pMFType : IMFMediaType*
' pVIH : VIDEOINFOHEADER*
' cbBufSize : DWORD
' pSubtype : GUID* optional
Declare PtrSafe Function MFInitMediaTypeFromVideoInfoHeader Lib "mfplat" ( _
    ByVal pMFType As LongPtr, _
    ByVal pVIH As LongPtr, _
    ByVal cbBufSize As Long, _
    ByVal pSubtype As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。
import ctypes
from ctypes import wintypes

MFInitMediaTypeFromVideoInfoHeader = ctypes.windll.mfplat.MFInitMediaTypeFromVideoInfoHeader
MFInitMediaTypeFromVideoInfoHeader.restype = ctypes.c_int
MFInitMediaTypeFromVideoInfoHeader.argtypes = [
    ctypes.c_void_p,  # pMFType : IMFMediaType*
    ctypes.c_void_p,  # pVIH : VIDEOINFOHEADER*
    wintypes.DWORD,  # cbBufSize : DWORD
    ctypes.c_void_p,  # pSubtype : GUID* optional
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MFPlat.dll')
MFInitMediaTypeFromVideoInfoHeader = Fiddle::Function.new(
  lib['MFInitMediaTypeFromVideoInfoHeader'],
  [
    Fiddle::TYPE_VOIDP,  # pMFType : IMFMediaType*
    Fiddle::TYPE_VOIDP,  # pVIH : VIDEOINFOHEADER*
    -Fiddle::TYPE_INT,  # cbBufSize : DWORD
    Fiddle::TYPE_VOIDP,  # pSubtype : GUID* optional
  ],
  Fiddle::TYPE_INT)
#[link(name = "mfplat")]
extern "system" {
    fn MFInitMediaTypeFromVideoInfoHeader(
        pMFType: *mut core::ffi::c_void,  // IMFMediaType*
        pVIH: *const VIDEOINFOHEADER,  // VIDEOINFOHEADER*
        cbBufSize: u32,  // DWORD
        pSubtype: *const GUID  // GUID* optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("MFPlat.dll")]
public static extern int MFInitMediaTypeFromVideoInfoHeader(IntPtr pMFType, IntPtr pVIH, uint cbBufSize, IntPtr pSubtype);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MFPlat_MFInitMediaTypeFromVideoInfoHeader' -Namespace Win32 -PassThru
# $api::MFInitMediaTypeFromVideoInfoHeader(pMFType, pVIH, cbBufSize, pSubtype)
#uselib "MFPlat.dll"
#func global MFInitMediaTypeFromVideoInfoHeader "MFInitMediaTypeFromVideoInfoHeader" sptr, sptr, sptr, sptr
; MFInitMediaTypeFromVideoInfoHeader pMFType, varptr(pVIH), cbBufSize, varptr(pSubtype)   ; 戻り値は stat
; pMFType : IMFMediaType* -> "sptr"
; pVIH : VIDEOINFOHEADER* -> "sptr"
; cbBufSize : DWORD -> "sptr"
; pSubtype : GUID* optional -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。
出力引数:
#uselib "MFPlat.dll"
#cfunc global MFInitMediaTypeFromVideoInfoHeader "MFInitMediaTypeFromVideoInfoHeader" sptr, var, int, var
; res = MFInitMediaTypeFromVideoInfoHeader(pMFType, pVIH, cbBufSize, pSubtype)
; pMFType : IMFMediaType* -> "sptr"
; pVIH : VIDEOINFOHEADER* -> "var"
; cbBufSize : DWORD -> "int"
; pSubtype : GUID* optional -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。
出力引数:
; HRESULT MFInitMediaTypeFromVideoInfoHeader(IMFMediaType* pMFType, VIDEOINFOHEADER* pVIH, DWORD cbBufSize, GUID* pSubtype)
#uselib "MFPlat.dll"
#cfunc global MFInitMediaTypeFromVideoInfoHeader "MFInitMediaTypeFromVideoInfoHeader" intptr, var, int, var
; res = MFInitMediaTypeFromVideoInfoHeader(pMFType, pVIH, cbBufSize, pSubtype)
; pMFType : IMFMediaType* -> "intptr"
; pVIH : VIDEOINFOHEADER* -> "var"
; cbBufSize : DWORD -> "int"
; pSubtype : GUID* optional -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。
import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	mfplat = windows.NewLazySystemDLL("MFPlat.dll")
	procMFInitMediaTypeFromVideoInfoHeader = mfplat.NewProc("MFInitMediaTypeFromVideoInfoHeader")
)

// pMFType (IMFMediaType*), pVIH (VIDEOINFOHEADER*), cbBufSize (DWORD), pSubtype (GUID* optional)
r1, _, err := procMFInitMediaTypeFromVideoInfoHeader.Call(
	uintptr(pMFType),
	uintptr(pVIH),
	uintptr(cbBufSize),
	uintptr(pSubtype),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT
function MFInitMediaTypeFromVideoInfoHeader(
  pMFType: Pointer;   // IMFMediaType*
  pVIH: Pointer;   // VIDEOINFOHEADER*
  cbBufSize: DWORD;   // DWORD
  pSubtype: PGUID   // GUID* optional
): Integer; stdcall;
  external 'MFPlat.dll' name 'MFInitMediaTypeFromVideoInfoHeader';
result := DllCall("MFPlat\MFInitMediaTypeFromVideoInfoHeader"
    , "Ptr", pMFType   ; IMFMediaType*
    , "Ptr", pVIH   ; VIDEOINFOHEADER*
    , "UInt", cbBufSize   ; DWORD
    , "Ptr", pSubtype   ; GUID* optional
    , "Int")   ; return: HRESULT
●MFInitMediaTypeFromVideoInfoHeader(pMFType, pVIH, cbBufSize, pSubtype) = DLL("MFPlat.dll", "int MFInitMediaTypeFromVideoInfoHeader(void*, void*, dword, void*)")
# 呼び出し: MFInitMediaTypeFromVideoInfoHeader(pMFType, pVIH, cbBufSize, pSubtype)
# pMFType : IMFMediaType* -> "void*"
# pVIH : VIDEOINFOHEADER* -> "void*"
# cbBufSize : DWORD -> "dword"
# pSubtype : GUID* optional -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。