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https://github.com/reactos/reactos.git
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201 lines
4.7 KiB
C
201 lines
4.7 KiB
C
/*
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* Copyright (C) 2003 Michael Günnewig
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <stdarg.h>
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#define COBJMACROS
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#include "windef.h"
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#include "winbase.h"
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#include "objbase.h"
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#include "mediaobj.h"
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#include "dmort.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(msdmo);
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/***********************************************************************
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* MoCreateMediaType (MSDMO.@)
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*
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* Allocate a new media type structure
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*/
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HRESULT WINAPI MoCreateMediaType(DMO_MEDIA_TYPE** ppmedia, DWORD cbFormat)
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{
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HRESULT r;
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TRACE("%p %u\n", ppmedia, cbFormat);
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if (!ppmedia)
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return E_POINTER;
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*ppmedia = CoTaskMemAlloc(sizeof(DMO_MEDIA_TYPE));
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if (!*ppmedia)
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return E_OUTOFMEMORY;
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r = MoInitMediaType(*ppmedia, cbFormat);
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if (FAILED(r))
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{
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CoTaskMemFree(*ppmedia);
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*ppmedia = NULL;
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}
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return r;
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}
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/***********************************************************************
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* MoInitMediaType (MSDMO.@)
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*
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* Initialize media type structure
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*/
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HRESULT WINAPI MoInitMediaType(DMO_MEDIA_TYPE* pmedia, DWORD cbFormat)
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{
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TRACE("%p %u\n", pmedia, cbFormat);
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if (!pmedia)
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return E_POINTER;
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memset(pmedia, 0, sizeof(DMO_MEDIA_TYPE));
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if (cbFormat > 0)
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{
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pmedia->pbFormat = CoTaskMemAlloc(cbFormat);
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if (!pmedia->pbFormat)
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return E_OUTOFMEMORY;
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pmedia->cbFormat = cbFormat;
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}
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return S_OK;
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}
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/***********************************************************************
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* MoDeleteMediaType (MSDMO.@)
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*
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* Delete a media type structure
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*/
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HRESULT WINAPI MoDeleteMediaType(DMO_MEDIA_TYPE* pmedia)
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{
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TRACE("%p\n", pmedia);
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if (!pmedia)
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return E_POINTER;
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MoFreeMediaType(pmedia);
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CoTaskMemFree(pmedia);
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return S_OK;
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}
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/***********************************************************************
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* MoFreeMediaType (MSDMO.@)
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*
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* Free allocated members of a media type structure
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*/
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HRESULT WINAPI MoFreeMediaType(DMO_MEDIA_TYPE* pmedia)
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{
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TRACE("%p\n", pmedia);
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if (!pmedia)
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return E_POINTER;
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if (pmedia->pUnk)
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{
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IUnknown_Release(pmedia->pUnk);
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pmedia->pUnk = NULL;
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}
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CoTaskMemFree(pmedia->pbFormat);
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pmedia->pbFormat = NULL;
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return S_OK;
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}
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/***********************************************************************
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* MoDuplicateMediaType (MSDMO.@)
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*
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* Duplicates a media type structure
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*/
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HRESULT WINAPI MoDuplicateMediaType(DMO_MEDIA_TYPE** ppdst,
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const DMO_MEDIA_TYPE* psrc)
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{
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HRESULT r;
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TRACE("%p %p\n", ppdst, psrc);
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if (!ppdst || !psrc)
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return E_POINTER;
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*ppdst = CoTaskMemAlloc(sizeof(DMO_MEDIA_TYPE));
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if (!*ppdst)
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return E_OUTOFMEMORY;
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r = MoCopyMediaType(*ppdst, psrc);
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if (FAILED(r))
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{
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MoFreeMediaType(*ppdst);
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*ppdst = NULL;
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}
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return r;
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}
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/***********************************************************************
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* MoCopyMediaType (MSDMO.@)
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*
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* Copy a new media type structure
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*/
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HRESULT WINAPI MoCopyMediaType(DMO_MEDIA_TYPE* pdst,
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const DMO_MEDIA_TYPE* psrc)
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{
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TRACE("%p %p\n", pdst, psrc);
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if (!pdst || !psrc)
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return E_POINTER;
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pdst->majortype = psrc->majortype;
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pdst->subtype = psrc->subtype;
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pdst->formattype = psrc->formattype;
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pdst->bFixedSizeSamples = psrc->bFixedSizeSamples;
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pdst->bTemporalCompression = psrc->bTemporalCompression;
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pdst->lSampleSize = psrc->lSampleSize;
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pdst->cbFormat = psrc->cbFormat;
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if (psrc->pbFormat && psrc->cbFormat > 0)
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{
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pdst->pbFormat = CoTaskMemAlloc(psrc->cbFormat);
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if (!pdst->pbFormat)
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return E_OUTOFMEMORY;
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memcpy(pdst->pbFormat, psrc->pbFormat, psrc->cbFormat);
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}
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else
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pdst->pbFormat = NULL;
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if (psrc->pUnk)
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{
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pdst->pUnk = psrc->pUnk;
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IUnknown_AddRef(pdst->pUnk);
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}
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else
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pdst->pUnk = NULL;
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return S_OK;
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}
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