dmoreg.c 16.8 KB
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/*
 * Copyright (C) 2003 Michael Gnnewig
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 * Copyright (C) 2003 CodeWeavers Inc. (Ulrich Czekalla)
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 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#define COM_NO_WINDOWS_H
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#include <stdarg.h>

#include "windef.h"
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#include "winbase.h"
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#include "winuser.h"
#include "winerror.h"
#include "winreg.h"
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#include "objbase.h"
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#include "dmo.h"
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#include "wine/unicode.h"
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#include "wine/debug.h"

WINE_DEFAULT_DEBUG_CHANNEL(msdmo);


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static const WCHAR szDMORootKey[] = 
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{
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    'D','i','r','e','c','t','S','h','o','w','\\',
    'M','e','d','i','a','O','b','j','e','c','t','s',0
}; 
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static const WCHAR szDMOInputType[] =
{
    'I','n','p','u','t','T','y','p','e','s',0
};

static const WCHAR szDMOOutputType[] =
{
    'O','u','t','p','u','t','T','y','p','e','s',0
};

static const WCHAR szDMOKeyed[] =
{
    'K','e','y','e','d',0
};

static const WCHAR szDMOCategories[] =
{
    'C','a','t','e','g','o','r','i','e','s',0
};

static const WCHAR szGUIDFmt[] =
{
    '%','0','8','X','-','%','0','4','X','-','%','0','4','X','-','%','0',
    '2','X','%','0','2','X','-','%','0','2','X','%','0','2','X','%','0','2',
    'X','%','0','2','X','%','0','2','X','%','0','2','X',0
};

static const WCHAR szCat3Fmt[] =
{
    '%','s','\\','%','s','\\','%','s',0
};

static const WCHAR szCat2Fmt[] =
{
    '%','s','\\','%','s',0
};

typedef struct
{
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    IEnumDMOVtbl               *lpVtbl;
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    DWORD			ref;
    DWORD			index;
    const GUID*                 guidCategory;
    DWORD                       dwFlags;
    DWORD                       cInTypes;
    DMO_PARTIAL_MEDIATYPE       *pInTypes;
    DWORD                       cOutTypes;
    DMO_PARTIAL_MEDIATYPE       *pOutTypes;
    HKEY                        hkey;
} IEnumDMOImpl;

const GUID IID_IEnumDMO = { 0x2c3cd98a, 0x2bfa, 0x4a53,
    { 0x9c, 0x27, 0x52, 0x49, 0xba, 0x64, 0xba, 0x0f}};

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static struct IEnumDMOVtbl edmovt;
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static LPWSTR GUIDToString(LPWSTR lpwstr, REFGUID lpcguid)
{
    wsprintfW(lpwstr, szGUIDFmt, lpcguid->Data1, lpcguid->Data2,
        lpcguid->Data3, lpcguid->Data4[0], lpcguid->Data4[1],
        lpcguid->Data4[2], lpcguid->Data4[3], lpcguid->Data4[4],
        lpcguid->Data4[5], lpcguid->Data4[6], lpcguid->Data4[7]);

    return lpwstr;
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}

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static BOOL IsMediaTypeEqual(DMO_PARTIAL_MEDIATYPE* mt1, DMO_PARTIAL_MEDIATYPE* mt2)
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{

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    return (IsEqualCLSID(&mt1->type, &mt2->type) ||
            IsEqualCLSID(&mt2->type, &GUID_NULL) ||
            IsEqualCLSID(&mt1->type, &GUID_NULL)) &&
            (IsEqualCLSID(&mt1->subtype, &mt2->subtype) ||
            IsEqualCLSID(&mt2->subtype, &GUID_NULL) ||
            IsEqualCLSID(&mt1->subtype, &GUID_NULL));
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}

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/***************************************************************
 * DMORegister
 *
 * Register a DirectX Media Object.
 */
HRESULT WINAPI DMORegister(
   LPCWSTR szName,
   REFCLSID clsidDMO,
   REFGUID guidCategory,
   DWORD dwFlags,
   DWORD cInTypes,
   const DMO_PARTIAL_MEDIATYPE *pInTypes,
   DWORD cOutTypes,
   const DMO_PARTIAL_MEDIATYPE *pOutTypes
)
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{
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    WCHAR szguid[64];
    HRESULT hres;
    HKEY hrkey = 0;
    HKEY hkey = 0;
    HKEY hckey = 0;
    HKEY hclskey = 0;
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    TRACE("%s\n", debugstr_w(szName));
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    hres = RegOpenKeyExW(HKEY_CLASSES_ROOT, szDMORootKey, 0, KEY_WRITE, &hrkey);
    if (ERROR_SUCCESS != hres)
        goto lend;
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    /* Create clsidDMO key under MediaObjects */ 
    hres = RegCreateKeyExW(hrkey, GUIDToString(szguid, clsidDMO), 0, NULL,
        REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hkey, NULL);
    if (ERROR_SUCCESS != hres)
        goto lend;

    /* Set default Name value */
    hres = RegSetValueExW(hkey, NULL, 0, REG_SZ, (LPBYTE) szName, 
        (strlenW(szName) + 1)) * sizeof(WCHAR);
    /* Set InputTypes */
    hres = RegSetValueExW(hkey, szDMOInputType, 0, REG_BINARY, 
        (LPBYTE) pInTypes, cInTypes * sizeof(DMO_PARTIAL_MEDIATYPE));
    /* Set OutputTypes */
    hres = RegSetValueExW(hkey, szDMOOutputType, 0, REG_BINARY, 
        (LPBYTE) pOutTypes, cOutTypes * sizeof(DMO_PARTIAL_MEDIATYPE));

    if (dwFlags & DMO_REGISTERF_IS_KEYED)
    {
        /* Create Keyed key */ 
        hres = RegCreateKeyExW(hkey, szDMOKeyed, 0, NULL,
            REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hckey, NULL);
        if (ERROR_SUCCESS != hres)
            goto lend;
        RegCloseKey(hckey);
    }

    /* Register the category */
    hres = RegOpenKeyExW(hrkey, szDMOCategories, 0, KEY_WRITE, &hckey);
    if (ERROR_SUCCESS != hres)
        goto lend;

    RegCloseKey(hkey);

    hres = RegOpenKeyExW(hckey, GUIDToString(szguid, guidCategory), 0, KEY_WRITE, &hkey);
    if (ERROR_SUCCESS != hres)
        goto lend;
    hres = RegCreateKeyExW(hkey, GUIDToString(szguid, clsidDMO), 0, NULL,
        REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hclskey, NULL);
    if (ERROR_SUCCESS != hres)
        goto lend;

lend:
    if (hkey)
        RegCloseKey(hkey);
    if (hckey)
        RegCloseKey(hckey);
    if (hclskey)
        RegCloseKey(hclskey);
    if (hrkey)
        RegCloseKey(hrkey);

    TRACE(" hresult=0x%08lx\n", hres);
    return hres;
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}

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/***************************************************************
 * DMOUnregister
 *
 * Unregister a DirectX Media Object.
 */
HRESULT WINAPI DMOUnregister(REFCLSID clsidDMO, REFGUID guidCategory)
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{
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    HRESULT hres;
    WCHAR szguid[64];
    HKEY hrkey = 0;
    HKEY hckey = 0;

    GUIDToString(szguid, clsidDMO);

    TRACE("%s %p\n", debugstr_w(szguid), guidCategory);

    hres = RegOpenKeyExW(HKEY_CLASSES_ROOT, szDMORootKey, 0, KEY_WRITE, &hrkey);
    if (ERROR_SUCCESS != hres)
        goto lend;

    hres = RegDeleteKeyW(hrkey, szguid);
    if (ERROR_SUCCESS != hres)
        goto lend;

    hres = RegOpenKeyExW(hrkey, szDMOCategories, 0, KEY_WRITE, &hckey);
    if (ERROR_SUCCESS != hres)
        goto lend;

    hres = RegDeleteKeyW(hckey, szguid);
    if (ERROR_SUCCESS != hres)
        goto lend;

lend:
    if (hckey)
        RegCloseKey(hckey);
    if (hrkey)
        RegCloseKey(hrkey);

    return hres;
}


/***************************************************************
 * DMOGetName
 *
 * Get DMP Name from the registry
 */
HRESULT WINAPI DMOGetName(REFCLSID clsidDMO, WCHAR* szName)
{
    WCHAR szguid[64];
    HRESULT hres;
    HKEY hrkey = 0;
    HKEY hkey = 0;
    DWORD count;

    TRACE("%s\n", debugstr_guid(clsidDMO));

    hres = RegOpenKeyExW(HKEY_CLASSES_ROOT, szDMORootKey, 
        0, KEY_READ, &hrkey);
    if (ERROR_SUCCESS != hres)
        goto lend;

    hres = RegOpenKeyExW(hrkey, GUIDToString(szguid, clsidDMO),
        0, KEY_READ, &hkey);
    if (ERROR_SUCCESS != hres)
        goto lend;

    count = 80 * sizeof(WCHAR); /* 80 by API definition */
    hres = RegQueryValueExW(hkey, NULL, NULL, NULL, 
        (LPBYTE) szName, &count); 

    TRACE(" szName=%s\n", debugstr_w(szName));
lend:
    if (hkey)
        RegCloseKey(hrkey);
    if (hkey)
        RegCloseKey(hkey);

    return hres;
}


/**************************************************************************
*   IEnumDMO_Destructor
*/
static BOOL IEnumDMO_Destructor(IEnumDMO* iface)
{
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    IEnumDMOImpl *This = (IEnumDMOImpl *)iface;
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    TRACE("%p\n", This);

    if (This->hkey)
        RegCloseKey(This->hkey);

    if (This->pInTypes)
        HeapFree(GetProcessHeap(), 0, This->pInTypes);

    if (This->pOutTypes)
        HeapFree(GetProcessHeap(), 0, This->pOutTypes);

    return TRUE;
}


/**************************************************************************
 *  IEnumDMO_Constructor
 */
IEnumDMO * IEnumDMO_Constructor(
    REFGUID guidCategory,
    DWORD dwFlags,
    DWORD cInTypes,
    const DMO_PARTIAL_MEDIATYPE *pInTypes,
    DWORD cOutTypes,
    const DMO_PARTIAL_MEDIATYPE *pOutTypes)
{
    UINT size;
    IEnumDMOImpl* lpedmo;
    BOOL ret = FALSE;

    lpedmo = (IEnumDMOImpl*)HeapAlloc(GetProcessHeap(), 
        HEAP_ZERO_MEMORY, sizeof(IEnumDMOImpl));

    if (lpedmo)
    {
        lpedmo->ref = 1;
        lpedmo->lpVtbl = &edmovt;
        lpedmo->index = -1;
	lpedmo->guidCategory = guidCategory;
	lpedmo->dwFlags = dwFlags;

	size = cInTypes * sizeof(DMO_PARTIAL_MEDIATYPE);
        lpedmo->pInTypes = HeapAlloc(GetProcessHeap(), 0, size);
        if (!lpedmo->pInTypes)
            goto lerr;
	memcpy(lpedmo->pInTypes, pInTypes, size);
        lpedmo->cInTypes = cInTypes;

	size = cOutTypes * sizeof(DMO_PARTIAL_MEDIATYPE);
        lpedmo->pOutTypes = HeapAlloc(GetProcessHeap(), 0, size);
        if (!lpedmo->pOutTypes)
            goto lerr;
	memcpy(lpedmo->pOutTypes, pOutTypes, size);
        lpedmo->cOutTypes = cOutTypes;

        /* If not filtering by category enum from media objects root */
        if (IsEqualGUID(guidCategory, &GUID_NULL))
        {
            if (ERROR_SUCCESS == RegOpenKeyExW(HKEY_CLASSES_ROOT, szDMORootKey, 
                0, KEY_READ, &lpedmo->hkey))
                ret = TRUE;
        }
        else
        {
            WCHAR szguid[64];
            WCHAR szKey[MAX_PATH];

            wsprintfW(szKey, szCat3Fmt, szDMORootKey, szDMOCategories, 
                GUIDToString(szguid, guidCategory));
            if (ERROR_SUCCESS == RegOpenKeyExW(HKEY_CLASSES_ROOT, szKey, 
                0, KEY_READ, &lpedmo->hkey))
                ret = TRUE;
        }

lerr:
        if(!ret)
        {
            IEnumDMO_Destructor((IEnumDMO*)lpedmo);
            HeapFree(GetProcessHeap(),0,lpedmo);
            lpedmo = NULL;
        }
    }

    TRACE("returning %p\n", lpedmo);

    return (IEnumDMO*)lpedmo;
}


/******************************************************************************
 * IEnumDMO_fnAddRef
 */
static ULONG WINAPI IEnumDMO_fnAddRef(IEnumDMO * iface)
{
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    IEnumDMOImpl *This = (IEnumDMOImpl *)iface;
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    return ++(This->ref);
}


/**************************************************************************
 *  EnumDMO_QueryInterface
 */
static HRESULT WINAPI IEnumDMO_fnQueryInterface(
    IEnumDMO* iface,
    REFIID riid,
    LPVOID *ppvObj)
{
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    IEnumDMOImpl *This = (IEnumDMOImpl *)iface;
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    *ppvObj = NULL;

    if(IsEqualIID(riid, &IID_IUnknown))
        *ppvObj = This;
    else if(IsEqualIID(riid, &IID_IEnumDMO))
        *ppvObj = (IEnumDMO*)This;

    if(*ppvObj)
    {
        IEnumDMO_fnAddRef((IEnumDMO*)*ppvObj);
        return S_OK;
    }

    return E_NOINTERFACE;
}


/******************************************************************************
 * IEnumDMO_fnRelease
 */
static ULONG WINAPI IEnumDMO_fnRelease(IEnumDMO * iface)
{
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    IEnumDMOImpl *This = (IEnumDMOImpl *)iface;
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    if (!--(This->ref))
    {
        IEnumDMO_Destructor((IEnumDMO*)This);
        HeapFree(GetProcessHeap(),0,This);
        return 0;
    }

    return This->ref;
}


/******************************************************************************
 * IEnumDMO_fnNext
 */
static HRESULT WINAPI IEnumDMO_fnNext(
    IEnumDMO * iface, 
    DWORD cItemsToFetch,
    CLSID * pCLSID,
    WCHAR ** Names,
    DWORD * pcItemsFetched)
{
    FILETIME ft;
    HKEY hkey;
    WCHAR szNextKey[MAX_PATH];
    WCHAR szKey[MAX_PATH];
    WCHAR szValue[MAX_PATH];
    DWORD len;
    UINT count = 0;
    HRESULT hres = S_OK;

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    IEnumDMOImpl *This = (IEnumDMOImpl *)iface;
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    TRACE("%ld\n", cItemsToFetch);

    if (!pCLSID || !Names || !pcItemsFetched)
        return E_POINTER;

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    while (count < cItemsToFetch)
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    {
        This->index++;

        hres = RegEnumKeyExW(This->hkey, This->index, szNextKey, &len, NULL, NULL, NULL, &ft);
        if (hres != ERROR_SUCCESS)
            break;

        TRACE("found %s\n", debugstr_w(szNextKey));

	if (This->dwFlags & DMO_REGISTERF_IS_KEYED)
        {
            wsprintfW(szKey, szCat3Fmt, szDMORootKey, szNextKey, szDMOKeyed);
            hres = RegOpenKeyExW(HKEY_CLASSES_ROOT, szKey, 0, KEY_READ, &hkey);
            if (ERROR_SUCCESS != hres)
                continue;
            RegCloseKey(hkey);
        }

        wsprintfW(szKey, szCat2Fmt, szDMORootKey, szNextKey);
        hres = RegOpenKeyExW(HKEY_CLASSES_ROOT, szKey, 0, KEY_READ, &hkey);

        if (This->pInTypes)
        {
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            UINT i, j;
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            DWORD cInTypes;
            DMO_PARTIAL_MEDIATYPE* pInTypes;

	    len = MAX_PATH * sizeof(WCHAR);
            hres = RegQueryValueExW(hkey, szDMOInputType, NULL, NULL, (LPBYTE) szValue, &len);
	    if (ERROR_SUCCESS != hres)
            {
                RegCloseKey(hkey);
                continue;
            }

	    cInTypes = len / sizeof(DMO_PARTIAL_MEDIATYPE);
	    pInTypes = (DMO_PARTIAL_MEDIATYPE*) szValue;

            for (i = 0; i < This->cInTypes; i++)
            {
                for (j = 0; j < cInTypes; j++) 
                {
                    if (IsMediaTypeEqual(&pInTypes[j], &This->pInTypes[i]))
		        break;
                }

		if (j >= cInTypes)
                    break;
            }

            if (i < This->cInTypes)
            {
                RegCloseKey(hkey);
                continue;
            }
        }

        if (This->pOutTypes)
        {
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            UINT i, j;
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            DWORD cOutTypes;
            DMO_PARTIAL_MEDIATYPE* pOutTypes;

	    len = MAX_PATH * sizeof(WCHAR);
            hres = RegQueryValueExW(hkey, szDMOOutputType, NULL, NULL, (LPBYTE) szValue, &len);
	    if (ERROR_SUCCESS != hres)
            {
                RegCloseKey(hkey);
                continue;
            }

	    cOutTypes = len / sizeof(DMO_PARTIAL_MEDIATYPE);
	    pOutTypes = (DMO_PARTIAL_MEDIATYPE*) szValue;

            for (i = 0; i < This->cOutTypes; i++)
            {
                for (j = 0; j < cOutTypes; j++) 
                {
                    if (IsMediaTypeEqual(&pOutTypes[j], &This->pOutTypes[i]))
		        break;
                }

		if (j >= cOutTypes)
                    break;
            }

            if (i < This->cOutTypes)
            {
                RegCloseKey(hkey);
                continue;
            }
        }

	/* Media object wasn't filtered so add it to return list */
        Names[count] = NULL;
	len = MAX_PATH * sizeof(WCHAR);
        hres = RegQueryValueExW(hkey, NULL, NULL, NULL, (LPBYTE) szValue, &len); 
        if (ERROR_SUCCESS == hres)
	{
            Names[count] = HeapAlloc(GetProcessHeap(), 0, strlenW(szValue) + 1);
	    if (Names[count])
                strcmpW(Names[count], szValue);
	}
        CLSIDFromString(szNextKey, &pCLSID[count]);

        TRACE("found match %s %s\n", debugstr_w(szValue), debugstr_w(szNextKey));
        RegCloseKey(hkey);
	count++;
    }

    *pcItemsFetched = count;
    if (*pcItemsFetched < cItemsToFetch)
        hres = S_FALSE;

    return hres;
}
 

/******************************************************************************
 * IEnumDMO_fnSkip
 */
static HRESULT WINAPI IEnumDMO_fnSkip(IEnumDMO * iface, DWORD cItemsToSkip)
{
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    IEnumDMOImpl *This = (IEnumDMOImpl *)iface;
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    This->index += cItemsToSkip;

    return S_OK;
}


/******************************************************************************
 * IEnumDMO_fnReset
 */
static HRESULT WINAPI IEnumDMO_fnReset(IEnumDMO * iface)
{
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    IEnumDMOImpl *This = (IEnumDMOImpl *)iface;
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    This->index = -1;

    return S_OK;
}
 

/******************************************************************************
 * IEnumDMO_fnClone
 */
static HRESULT WINAPI IEnumDMO_fnClone(IEnumDMO * iface, IEnumDMO **ppEnum)
{
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    IEnumDMOImpl *This = (IEnumDMOImpl *)iface;
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    FIXME("(%p)->() to (%p)->() E_NOTIMPL\n", This, ppEnum);
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  return E_NOTIMPL;
}

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/***************************************************************
 * DMOEnum
 *
 * Enumerate DirectX Media Objects in the registry.
 */
HRESULT WINAPI DMOEnum(
    REFGUID guidCategory,
    DWORD dwFlags,
    DWORD cInTypes,
    const DMO_PARTIAL_MEDIATYPE *pInTypes,
    DWORD cOutTypes,
    const DMO_PARTIAL_MEDIATYPE *pOutTypes,
    IEnumDMO **ppEnum)
{
    HRESULT hres = E_FAIL;

    TRACE("guidCategory=%p dwFlags=0x%08lx cInTypes=%ld cOutTypes=%ld\n",
        guidCategory, dwFlags, cInTypes, cOutTypes);

    *ppEnum = IEnumDMO_Constructor(guidCategory, dwFlags, cInTypes,
        pInTypes, cOutTypes, pOutTypes);
    if (*ppEnum)
        hres = S_OK;

    return hres;
}


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static IEnumDMOVtbl edmovt =
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{
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	IEnumDMO_fnQueryInterface,
	IEnumDMO_fnAddRef,
	IEnumDMO_fnRelease,
	IEnumDMO_fnNext,
	IEnumDMO_fnSkip,
	IEnumDMO_fnReset,
	IEnumDMO_fnClone,
};
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HRESULT WINAPI DMOGetTypes(REFCLSID a, unsigned long b, unsigned long* c,
			   DMO_PARTIAL_MEDIATYPE* d, unsigned long e,
			   unsigned long* f, DMO_PARTIAL_MEDIATYPE* g)
{
  FIXME("(%p,%lu,%p,%p,%lu,%p,%p),stub!\n",a,b,c,d,e,f,g);
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  return E_NOTIMPL;
}