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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
24 /***********************************************************************
25 * MoCreateMediaType (MSDMO.@)
27 * Allocate a new media type structure
29 HRESULT WINAPI
MoCreateMediaType(DMO_MEDIA_TYPE
** ppmedia
, DWORD cbFormat
)
33 TRACE("%p %u\n", ppmedia
, cbFormat
);
38 *ppmedia
= CoTaskMemAlloc(sizeof(DMO_MEDIA_TYPE
));
42 r
= MoInitMediaType(*ppmedia
, cbFormat
);
45 CoTaskMemFree(*ppmedia
);
52 /***********************************************************************
53 * MoInitMediaType (MSDMO.@)
55 * Initialize media type structure
57 HRESULT WINAPI
MoInitMediaType(DMO_MEDIA_TYPE
* pmedia
, DWORD cbFormat
)
59 TRACE("%p %u\n", pmedia
, cbFormat
);
64 memset(pmedia
, 0, sizeof(DMO_MEDIA_TYPE
));
68 pmedia
->pbFormat
= CoTaskMemAlloc(cbFormat
);
69 if (!pmedia
->pbFormat
)
72 pmedia
->cbFormat
= cbFormat
;
78 /***********************************************************************
79 * MoDeleteMediaType (MSDMO.@)
81 * Delete a media type structure
83 HRESULT WINAPI
MoDeleteMediaType(DMO_MEDIA_TYPE
* pmedia
)
85 TRACE("%p\n", pmedia
);
90 MoFreeMediaType(pmedia
);
91 CoTaskMemFree(pmedia
);
96 /***********************************************************************
97 * MoFreeMediaType (MSDMO.@)
99 * Free allocated members of a media type structure
101 HRESULT WINAPI
MoFreeMediaType(DMO_MEDIA_TYPE
* pmedia
)
103 TRACE("%p\n", pmedia
);
110 IUnknown_Release(pmedia
->pUnk
);
114 CoTaskMemFree(pmedia
->pbFormat
);
115 pmedia
->pbFormat
= NULL
;
120 /***********************************************************************
121 * MoDuplicateMediaType (MSDMO.@)
123 * Duplicates a media type structure
125 HRESULT WINAPI
MoDuplicateMediaType(DMO_MEDIA_TYPE
** ppdst
,
126 const DMO_MEDIA_TYPE
* psrc
)
130 TRACE("%p %p\n", ppdst
, psrc
);
135 *ppdst
= CoTaskMemAlloc(sizeof(DMO_MEDIA_TYPE
));
137 return E_OUTOFMEMORY
;
139 r
= MoCopyMediaType(*ppdst
, psrc
);
142 MoFreeMediaType(*ppdst
);
149 /***********************************************************************
150 * MoCopyMediaType (MSDMO.@)
152 * Copy a new media type structure
154 HRESULT WINAPI
MoCopyMediaType(DMO_MEDIA_TYPE
* pdst
,
155 const DMO_MEDIA_TYPE
* psrc
)
157 TRACE("%p %p\n", pdst
, psrc
);
162 pdst
->majortype
= psrc
->majortype
;
163 pdst
->subtype
= psrc
->subtype
;
164 pdst
->formattype
= psrc
->formattype
;
166 pdst
->bFixedSizeSamples
= psrc
->bFixedSizeSamples
;
167 pdst
->bTemporalCompression
= psrc
->bTemporalCompression
;
168 pdst
->lSampleSize
= psrc
->lSampleSize
;
169 pdst
->cbFormat
= psrc
->cbFormat
;
171 if (psrc
->pbFormat
&& psrc
->cbFormat
> 0)
173 pdst
->pbFormat
= CoTaskMemAlloc(psrc
->cbFormat
);
175 return E_OUTOFMEMORY
;
177 memcpy(pdst
->pbFormat
, psrc
->pbFormat
, psrc
->cbFormat
);
180 pdst
->pbFormat
= NULL
;
184 pdst
->pUnk
= psrc
->pUnk
;
185 IUnknown_AddRef(pdst
->pUnk
);