Sweden-Number/dlls/msdmo/dmort.c

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/*
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* Copyright (C) 2003 Michael Günnewig
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#define COBJMACROS
#include "windef.h"
#include "winbase.h"
#include "objbase.h"
#include "mediaobj.h"
#include "dmort.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(msdmo);
/***********************************************************************
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* MoCreateMediaType (MSDMO.@)
*
* Allocate a new media type structure
*/
HRESULT WINAPI MoCreateMediaType(DMO_MEDIA_TYPE** ppmedia, DWORD cbFormat)
{
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HRESULT r;
TRACE("%p %lu\n", ppmedia, cbFormat);
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if (!ppmedia)
return E_POINTER;
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*ppmedia = CoTaskMemAlloc(sizeof(DMO_MEDIA_TYPE));
if (!*ppmedia)
return E_OUTOFMEMORY;
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r = MoInitMediaType(*ppmedia, cbFormat);
if (FAILED(r))
{
CoTaskMemFree(*ppmedia);
*ppmedia = NULL;
}
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return r;
}
/***********************************************************************
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* MoInitMediaType (MSDMO.@)
*
* Initialize media type structure
*/
HRESULT WINAPI MoInitMediaType(DMO_MEDIA_TYPE* pmedia, DWORD cbFormat)
{
TRACE("%p %lu\n", pmedia, cbFormat);
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if (!pmedia)
return E_POINTER;
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memset(pmedia, 0, sizeof(DMO_MEDIA_TYPE));
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if (cbFormat > 0)
{
pmedia->pbFormat = CoTaskMemAlloc(cbFormat);
if (!pmedia->pbFormat)
return E_OUTOFMEMORY;
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pmedia->cbFormat = cbFormat;
}
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return S_OK;
}
/***********************************************************************
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* MoDeleteMediaType (MSDMO.@)
*
* Delete a media type structure
*/
HRESULT WINAPI MoDeleteMediaType(DMO_MEDIA_TYPE* pmedia)
{
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TRACE("%p\n", pmedia);
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if (!pmedia)
return E_POINTER;
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MoFreeMediaType(pmedia);
CoTaskMemFree(pmedia);
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return S_OK;
}
/***********************************************************************
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* MoFreeMediaType (MSDMO.@)
*
* Free allocated members of a media type structure
*/
HRESULT WINAPI MoFreeMediaType(DMO_MEDIA_TYPE* pmedia)
{
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TRACE("%p\n", pmedia);
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if (!pmedia)
return E_POINTER;
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if (pmedia->pUnk)
{
IUnknown_Release(pmedia->pUnk);
pmedia->pUnk = NULL;
}
CoTaskMemFree(pmedia->pbFormat);
pmedia->pbFormat = NULL;
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return S_OK;
}
/***********************************************************************
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* MoDuplicateMediaType (MSDMO.@)
*
* Duplicates a media type structure
*/
HRESULT WINAPI MoDuplicateMediaType(DMO_MEDIA_TYPE** ppdst,
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const DMO_MEDIA_TYPE* psrc)
{
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HRESULT r;
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TRACE("%p %p\n", ppdst, psrc);
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if (!ppdst || !psrc)
return E_POINTER;
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*ppdst = CoTaskMemAlloc(sizeof(DMO_MEDIA_TYPE));
if (!*ppdst)
return E_OUTOFMEMORY;
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r = MoCopyMediaType(*ppdst, psrc);
if (FAILED(r))
{
MoFreeMediaType(*ppdst);
*ppdst = NULL;
}
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return r;
}
/***********************************************************************
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* MoCopyMediaType (MSDMO.@)
*
* Copy a new media type structure
*/
HRESULT WINAPI MoCopyMediaType(DMO_MEDIA_TYPE* pdst,
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const DMO_MEDIA_TYPE* psrc)
{
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TRACE("%p %p\n", pdst, psrc);
if (!pdst || !psrc)
return E_POINTER;
pdst->majortype = psrc->majortype;
pdst->subtype = psrc->subtype;
pdst->formattype = psrc->formattype;
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pdst->bFixedSizeSamples = psrc->bFixedSizeSamples;
pdst->bTemporalCompression = psrc->bTemporalCompression;
pdst->lSampleSize = psrc->lSampleSize;
pdst->cbFormat = psrc->cbFormat;
if (psrc->pbFormat && psrc->cbFormat > 0)
{
pdst->pbFormat = CoTaskMemAlloc(psrc->cbFormat);
if (!pdst->pbFormat)
return E_OUTOFMEMORY;
memcpy(pdst->pbFormat, psrc->pbFormat, psrc->cbFormat);
}
else
pdst->pbFormat = NULL;
if (psrc->pUnk)
{
pdst->pUnk = psrc->pUnk;
IUnknown_AddRef(pdst->pUnk);
}
else
pdst->pUnk = NULL;
return S_OK;
}