ホーム › Media.MediaFoundation › MFInitMediaTypeFromWaveFormatEx
MFInitMediaTypeFromWaveFormatEx
関数WAVEFORMATEXからメディア型を初期化する。
シグネチャ
// MFPlat.dll
#include <windows.h>
HRESULT MFInitMediaTypeFromWaveFormatEx(
IMFMediaType* pMFType,
const WAVEFORMATEX* pWaveFormat,
DWORD cbBufSize
);パラメーター
| 名前 | 型 | 方向 |
|---|---|---|
| pMFType | IMFMediaType* | in |
| pWaveFormat | WAVEFORMATEX* | in |
| cbBufSize | DWORD | in |
戻り値の型: HRESULT
各言語での呼び出し定義
// MFPlat.dll
#include <windows.h>
HRESULT MFInitMediaTypeFromWaveFormatEx(
IMFMediaType* pMFType,
const WAVEFORMATEX* pWaveFormat,
DWORD cbBufSize
);[DllImport("MFPlat.dll", ExactSpelling = true)]
static extern int MFInitMediaTypeFromWaveFormatEx(
IntPtr pMFType, // IMFMediaType*
IntPtr pWaveFormat, // WAVEFORMATEX*
uint cbBufSize // DWORD
);<DllImport("MFPlat.dll", ExactSpelling:=True)>
Public Shared Function MFInitMediaTypeFromWaveFormatEx(
pMFType As IntPtr, ' IMFMediaType*
pWaveFormat As IntPtr, ' WAVEFORMATEX*
cbBufSize As UInteger ' DWORD
) As Integer
End Function' pMFType : IMFMediaType*
' pWaveFormat : WAVEFORMATEX*
' cbBufSize : DWORD
Declare PtrSafe Function MFInitMediaTypeFromWaveFormatEx Lib "mfplat" ( _
ByVal pMFType As LongPtr, _
ByVal pWaveFormat As LongPtr, _
ByVal cbBufSize As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。import ctypes
from ctypes import wintypes
MFInitMediaTypeFromWaveFormatEx = ctypes.windll.mfplat.MFInitMediaTypeFromWaveFormatEx
MFInitMediaTypeFromWaveFormatEx.restype = ctypes.c_int
MFInitMediaTypeFromWaveFormatEx.argtypes = [
ctypes.c_void_p, # pMFType : IMFMediaType*
ctypes.c_void_p, # pWaveFormat : WAVEFORMATEX*
wintypes.DWORD, # cbBufSize : DWORD
]require 'fiddle'
require 'fiddle/import'
lib = Fiddle.dlopen('MFPlat.dll')
MFInitMediaTypeFromWaveFormatEx = Fiddle::Function.new(
lib['MFInitMediaTypeFromWaveFormatEx'],
[
Fiddle::TYPE_VOIDP, # pMFType : IMFMediaType*
Fiddle::TYPE_VOIDP, # pWaveFormat : WAVEFORMATEX*
-Fiddle::TYPE_INT, # cbBufSize : DWORD
],
Fiddle::TYPE_INT)#[link(name = "mfplat")]
extern "system" {
fn MFInitMediaTypeFromWaveFormatEx(
pMFType: *mut core::ffi::c_void, // IMFMediaType*
pWaveFormat: *const WAVEFORMATEX, // WAVEFORMATEX*
cbBufSize: u32 // DWORD
) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.$sig = @"
[DllImport("MFPlat.dll")]
public static extern int MFInitMediaTypeFromWaveFormatEx(IntPtr pMFType, IntPtr pWaveFormat, uint cbBufSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MFPlat_MFInitMediaTypeFromWaveFormatEx' -Namespace Win32 -PassThru
# $api::MFInitMediaTypeFromWaveFormatEx(pMFType, pWaveFormat, cbBufSize)#uselib "MFPlat.dll"
#func global MFInitMediaTypeFromWaveFormatEx "MFInitMediaTypeFromWaveFormatEx" sptr, sptr, sptr
; MFInitMediaTypeFromWaveFormatEx pMFType, varptr(pWaveFormat), cbBufSize ; 戻り値は stat
; pMFType : IMFMediaType* -> "sptr"
; pWaveFormat : WAVEFORMATEX* -> "sptr"
; cbBufSize : DWORD -> "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 MFInitMediaTypeFromWaveFormatEx "MFInitMediaTypeFromWaveFormatEx" sptr, var, int ; res = MFInitMediaTypeFromWaveFormatEx(pMFType, pWaveFormat, cbBufSize) ; pMFType : IMFMediaType* -> "sptr" ; pWaveFormat : WAVEFORMATEX* -> "var" ; cbBufSize : DWORD -> "int" ; ※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。#uselib "MFPlat.dll" #cfunc global MFInitMediaTypeFromWaveFormatEx "MFInitMediaTypeFromWaveFormatEx" sptr, sptr, int ; res = MFInitMediaTypeFromWaveFormatEx(pMFType, varptr(pWaveFormat), cbBufSize) ; pMFType : IMFMediaType* -> "sptr" ; pWaveFormat : WAVEFORMATEX* -> "sptr" ; cbBufSize : DWORD -> "int" ; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。
出力引数:
; HRESULT MFInitMediaTypeFromWaveFormatEx(IMFMediaType* pMFType, WAVEFORMATEX* pWaveFormat, DWORD cbBufSize) #uselib "MFPlat.dll" #cfunc global MFInitMediaTypeFromWaveFormatEx "MFInitMediaTypeFromWaveFormatEx" intptr, var, int ; res = MFInitMediaTypeFromWaveFormatEx(pMFType, pWaveFormat, cbBufSize) ; pMFType : IMFMediaType* -> "intptr" ; pWaveFormat : WAVEFORMATEX* -> "var" ; cbBufSize : DWORD -> "int" ; ※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。; HRESULT MFInitMediaTypeFromWaveFormatEx(IMFMediaType* pMFType, WAVEFORMATEX* pWaveFormat, DWORD cbBufSize) #uselib "MFPlat.dll" #cfunc global MFInitMediaTypeFromWaveFormatEx "MFInitMediaTypeFromWaveFormatEx" intptr, intptr, int ; res = MFInitMediaTypeFromWaveFormatEx(pMFType, varptr(pWaveFormat), cbBufSize) ; pMFType : IMFMediaType* -> "intptr" ; pWaveFormat : WAVEFORMATEX* -> "intptr" ; cbBufSize : DWORD -> "int" ; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。
import (
"golang.org/x/sys/windows"
"unsafe"
)
var (
mfplat = windows.NewLazySystemDLL("MFPlat.dll")
procMFInitMediaTypeFromWaveFormatEx = mfplat.NewProc("MFInitMediaTypeFromWaveFormatEx")
)
// pMFType (IMFMediaType*), pWaveFormat (WAVEFORMATEX*), cbBufSize (DWORD)
r1, _, err := procMFInitMediaTypeFromWaveFormatEx.Call(
uintptr(pMFType),
uintptr(pWaveFormat),
uintptr(cbBufSize),
)
_ = err // syscall.Errno (valid when the call sets last-error)
_ = r1 // HRESULTfunction MFInitMediaTypeFromWaveFormatEx(
pMFType: Pointer; // IMFMediaType*
pWaveFormat: Pointer; // WAVEFORMATEX*
cbBufSize: DWORD // DWORD
): Integer; stdcall;
external 'MFPlat.dll' name 'MFInitMediaTypeFromWaveFormatEx';result := DllCall("MFPlat\MFInitMediaTypeFromWaveFormatEx"
, "Ptr", pMFType ; IMFMediaType*
, "Ptr", pWaveFormat ; WAVEFORMATEX*
, "UInt", cbBufSize ; DWORD
, "Int") ; return: HRESULT●MFInitMediaTypeFromWaveFormatEx(pMFType, pWaveFormat, cbBufSize) = DLL("MFPlat.dll", "int MFInitMediaTypeFromWaveFormatEx(void*, void*, dword)")
# 呼び出し: MFInitMediaTypeFromWaveFormatEx(pMFType, pWaveFormat, cbBufSize)
# pMFType : IMFMediaType* -> "void*"
# pWaveFormat : WAVEFORMATEX* -> "void*"
# cbBufSize : DWORD -> "dword"
# 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)。