MFCreateLegacyMediaBufferOnMFMediaBuffer

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

HRESULT MFCreateLegacyMediaBufferOnMFMediaBuffer(
    IMFSample* pSample,   // optional
    IMFMediaBuffer* pMFMediaBuffer,
    DWORD cbOffset,
    IMediaBuffer** ppMediaBuffer
);

<DllImport("MFPlat.dll", ExactSpelling:=True)>
Public Shared Function MFCreateLegacyMediaBufferOnMFMediaBuffer(
    pSample As IntPtr,   ' IMFSample* optional
    pMFMediaBuffer As IntPtr,   ' IMFMediaBuffer*
    cbOffset As UInteger,   ' DWORD
    ppMediaBuffer As IntPtr   ' IMediaBuffer** out
) As Integer
End Function

' pSample : IMFSample* optional
' pMFMediaBuffer : IMFMediaBuffer*
' cbOffset : DWORD
' ppMediaBuffer : IMediaBuffer** out
Declare PtrSafe Function MFCreateLegacyMediaBufferOnMFMediaBuffer Lib "mfplat" ( _
    ByVal pSample As LongPtr, _
    ByVal pMFMediaBuffer As LongPtr, _
    ByVal cbOffset As Long, _
    ByVal ppMediaBuffer 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

MFCreateLegacyMediaBufferOnMFMediaBuffer = ctypes.windll.mfplat.MFCreateLegacyMediaBufferOnMFMediaBuffer
MFCreateLegacyMediaBufferOnMFMediaBuffer.restype = ctypes.c_int
MFCreateLegacyMediaBufferOnMFMediaBuffer.argtypes = [
    ctypes.c_void_p,  # pSample : IMFSample* optional
    ctypes.c_void_p,  # pMFMediaBuffer : IMFMediaBuffer*
    wintypes.DWORD,  # cbOffset : DWORD
    ctypes.c_void_p,  # ppMediaBuffer : IMediaBuffer** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MFPlat.dll')
MFCreateLegacyMediaBufferOnMFMediaBuffer = Fiddle::Function.new(
  lib['MFCreateLegacyMediaBufferOnMFMediaBuffer'],
  [
    Fiddle::TYPE_VOIDP,  # pSample : IMFSample* optional
    Fiddle::TYPE_VOIDP,  # pMFMediaBuffer : IMFMediaBuffer*
    -Fiddle::TYPE_INT,  # cbOffset : DWORD
    Fiddle::TYPE_VOIDP,  # ppMediaBuffer : IMediaBuffer** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "mfplat")]
extern "system" {
    fn MFCreateLegacyMediaBufferOnMFMediaBuffer(
        pSample: *mut core::ffi::c_void,  // IMFSample* optional
        pMFMediaBuffer: *mut core::ffi::c_void,  // IMFMediaBuffer*
        cbOffset: u32,  // DWORD
        ppMediaBuffer: *mut *mut core::ffi::c_void  // IMediaBuffer** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MFPlat.dll")]
public static extern int MFCreateLegacyMediaBufferOnMFMediaBuffer(IntPtr pSample, IntPtr pMFMediaBuffer, uint cbOffset, IntPtr ppMediaBuffer);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MFPlat_MFCreateLegacyMediaBufferOnMFMediaBuffer' -Namespace Win32 -PassThru
# $api::MFCreateLegacyMediaBufferOnMFMediaBuffer(pSample, pMFMediaBuffer, cbOffset, ppMediaBuffer)

#uselib "MFPlat.dll"
#func global MFCreateLegacyMediaBufferOnMFMediaBuffer "MFCreateLegacyMediaBufferOnMFMediaBuffer" sptr, sptr, sptr, sptr
; MFCreateLegacyMediaBufferOnMFMediaBuffer pSample, pMFMediaBuffer, cbOffset, ppMediaBuffer   ; 戻り値は stat
; pSample : IMFSample* optional -> "sptr"
; pMFMediaBuffer : IMFMediaBuffer* -> "sptr"
; cbOffset : DWORD -> "sptr"
; ppMediaBuffer : IMediaBuffer** out -> "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。

#uselib "MFPlat.dll"
#cfunc global MFCreateLegacyMediaBufferOnMFMediaBuffer "MFCreateLegacyMediaBufferOnMFMediaBuffer" sptr, sptr, int, sptr
; res = MFCreateLegacyMediaBufferOnMFMediaBuffer(pSample, pMFMediaBuffer, cbOffset, ppMediaBuffer)
; pSample : IMFSample* optional -> "sptr"
; pMFMediaBuffer : IMFMediaBuffer* -> "sptr"
; cbOffset : DWORD -> "int"
; ppMediaBuffer : IMediaBuffer** out -> "sptr"

; HRESULT MFCreateLegacyMediaBufferOnMFMediaBuffer(IMFSample* pSample, IMFMediaBuffer* pMFMediaBuffer, DWORD cbOffset, IMediaBuffer** ppMediaBuffer)
#uselib "MFPlat.dll"
#cfunc global MFCreateLegacyMediaBufferOnMFMediaBuffer "MFCreateLegacyMediaBufferOnMFMediaBuffer" intptr, intptr, int, intptr
; res = MFCreateLegacyMediaBufferOnMFMediaBuffer(pSample, pMFMediaBuffer, cbOffset, ppMediaBuffer)
; pSample : IMFSample* optional -> "intptr"
; pMFMediaBuffer : IMFMediaBuffer* -> "intptr"
; cbOffset : DWORD -> "int"
; ppMediaBuffer : IMediaBuffer** out -> "intptr"

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	mfplat = windows.NewLazySystemDLL("MFPlat.dll")
	procMFCreateLegacyMediaBufferOnMFMediaBuffer = mfplat.NewProc("MFCreateLegacyMediaBufferOnMFMediaBuffer")
)

// pSample (IMFSample* optional), pMFMediaBuffer (IMFMediaBuffer*), cbOffset (DWORD), ppMediaBuffer (IMediaBuffer** out)
r1, _, err := procMFCreateLegacyMediaBufferOnMFMediaBuffer.Call(
	uintptr(pSample),
	uintptr(pMFMediaBuffer),
	uintptr(cbOffset),
	uintptr(ppMediaBuffer),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function MFCreateLegacyMediaBufferOnMFMediaBuffer(
  pSample: Pointer;   // IMFSample* optional
  pMFMediaBuffer: Pointer;   // IMFMediaBuffer*
  cbOffset: DWORD;   // DWORD
  ppMediaBuffer: Pointer   // IMediaBuffer** out
): Integer; stdcall;
  external 'MFPlat.dll' name 'MFCreateLegacyMediaBufferOnMFMediaBuffer';

result := DllCall("MFPlat\MFCreateLegacyMediaBufferOnMFMediaBuffer"
    , "Ptr", pSample   ; IMFSample* optional
    , "Ptr", pMFMediaBuffer   ; IMFMediaBuffer*
    , "UInt", cbOffset   ; DWORD
    , "Ptr", ppMediaBuffer   ; IMediaBuffer** out
    , "Int")   ; return: HRESULT

●MFCreateLegacyMediaBufferOnMFMediaBuffer(pSample, pMFMediaBuffer, cbOffset, ppMediaBuffer) = DLL("MFPlat.dll", "int MFCreateLegacyMediaBufferOnMFMediaBuffer(void*, void*, dword, void*)")
# 呼び出し: MFCreateLegacyMediaBufferOnMFMediaBuffer(pSample, pMFMediaBuffer, cbOffset, ppMediaBuffer)
# pSample : IMFSample* optional -> "void*"
# pMFMediaBuffer : IMFMediaBuffer* -> "void*"
# cbOffset : DWORD -> "dword"
# ppMediaBuffer : IMediaBuffer** out -> "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)。