2 * Copyright (C) 2003 Michael Günnewig
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #define COM_NO_WINDOWS_H
30 #include "wine/debug.h"
32 WINE_DEFAULT_DEBUG_CHANNEL(msdmo);
34 /***********************************************************************
35 * MoCreateMediaType (MSDMO.@)
37 * Allocate a new media type structure
39 HRESULT WINAPI MoCreateMediaType(DMO_MEDIA_TYPE** ppmedia, DWORD cbFormat)
43 TRACE("%p %lu\n", ppmedia, cbFormat);
48 *ppmedia = CoTaskMemAlloc(sizeof(DMO_MEDIA_TYPE));
52 r = MoInitMediaType(*ppmedia, cbFormat);
55 CoTaskMemFree(*ppmedia);
62 /***********************************************************************
63 * MoInitMediaType (MSDMO.@)
65 * Initialize media type structure
67 HRESULT WINAPI MoInitMediaType(DMO_MEDIA_TYPE* pmedia, DWORD cbFormat)
69 TRACE("%p %lu\n", pmedia, cbFormat);
74 memset(pmedia, 0, sizeof(DMO_MEDIA_TYPE));
78 pmedia->pbFormat = CoTaskMemAlloc(cbFormat);
79 if (!pmedia->pbFormat)
82 pmedia->cbFormat = cbFormat;
88 /***********************************************************************
89 * MoDeleteMediaType (MSDMO.@)
91 * Delete a media type structure
93 HRESULT WINAPI MoDeleteMediaType(DMO_MEDIA_TYPE* pmedia)
95 TRACE("%p\n", pmedia);
100 MoFreeMediaType(pmedia);
101 CoTaskMemFree(pmedia);
106 /***********************************************************************
107 * MoFreeMediaType (MSDMO.@)
109 * Free allocated members of a media type structure
111 HRESULT WINAPI MoFreeMediaType(DMO_MEDIA_TYPE* pmedia)
113 TRACE("%p\n", pmedia);
120 IUnknown_Release(pmedia->pUnk);
124 if (pmedia->pbFormat)
126 CoTaskMemFree(pmedia->pbFormat);
127 pmedia->pbFormat = NULL;
133 /***********************************************************************
134 * MoDuplicateMediaType (MSDMO.@)
136 * Duplicates a media type structure
138 HRESULT WINAPI MoDuplicateMediaType(DMO_MEDIA_TYPE** ppdst,
139 const DMO_MEDIA_TYPE* psrc)
143 TRACE("%p %p\n", ppdst, psrc);
148 *ppdst = CoTaskMemAlloc(sizeof(DMO_MEDIA_TYPE));
150 return E_OUTOFMEMORY;
152 r = MoCopyMediaType(*ppdst, psrc);
155 MoFreeMediaType(*ppdst);
162 /***********************************************************************
163 * MoCopyMediaType (MSDMO.@)
165 * Copy a new media type structure
167 HRESULT WINAPI MoCopyMediaType(DMO_MEDIA_TYPE* pdst,
168 const DMO_MEDIA_TYPE* psrc)
170 TRACE("%p %p\n", pdst, psrc);
175 memcpy(&pdst->majortype, &psrc->majortype, sizeof(psrc->majortype));
176 memcpy(&pdst->subtype, &psrc->subtype, sizeof(psrc->subtype));
177 memcpy(&pdst->formattype, &psrc->formattype, sizeof(psrc->formattype));
179 pdst->bFixedSizeSamples = psrc->bFixedSizeSamples;
180 pdst->bTemporalCompression = psrc->bTemporalCompression;
181 pdst->lSampleSize = psrc->lSampleSize;
182 pdst->cbFormat = psrc->cbFormat;
184 if (psrc->pbFormat && psrc->cbFormat > 0)
186 pdst->pbFormat = CoTaskMemAlloc(psrc->cbFormat);
188 return E_OUTOFMEMORY;
190 memcpy(pdst->pbFormat, psrc->pbFormat, psrc->cbFormat);
193 pdst->pbFormat = NULL;
197 pdst->pUnk = psrc->pUnk;
198 IUnknown_AddRef(pdst->pUnk);