ReactOS 0.4.15-dev-8102-g108db8f
mediatype.c
Go to the documentation of this file.
1/*
2 * Implementation of MedaType utility functions
3 *
4 * Copyright 2003 Robert Shearman
5 * Copyright 2010 Aric Stewart, CodeWeavers
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20 */
21#include <stdarg.h>
22
23#define COBJMACROS
24#include "dshow.h"
25
26#include "wine/strmbase.h"
27#include "wine/debug.h"
28
30
32{
33 *dest = *src;
34 if (src->pbFormat)
35 {
36 dest->pbFormat = CoTaskMemAlloc(src->cbFormat);
37 if (!dest->pbFormat)
38 return E_OUTOFMEMORY;
39 memcpy(dest->pbFormat, src->pbFormat, src->cbFormat);
40 }
41 if (dest->pUnk)
42 IUnknown_AddRef(dest->pUnk);
43 return S_OK;
44}
45
47{
48 if (pMediaType->pbFormat)
49 {
50 CoTaskMemFree(pMediaType->pbFormat);
51 pMediaType->pbFormat = NULL;
52 }
53 if (pMediaType->pUnk)
54 {
55 IUnknown_Release(pMediaType->pUnk);
56 pMediaType->pUnk = NULL;
57 }
58}
59
61{
62 AM_MEDIA_TYPE * pDest;
63
64 pDest = CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE));
65 if (!pDest)
66 return NULL;
67
68 if (FAILED(CopyMediaType(pDest, pSrc)))
69 {
70 CoTaskMemFree(pDest);
71 return NULL;
72 }
73
74 return pDest;
75}
76
78{
79 FreeMediaType(pMediaType);
80 CoTaskMemFree(pMediaType);
81}
82
83typedef struct tagENUMEDIADETAILS
84{
88
89typedef struct IEnumMediaTypesImpl
90{
100
102{
103 return CONTAINING_RECORD(iface, IEnumMediaTypesImpl, IEnumMediaTypes_iface);
104}
105
106static const struct IEnumMediaTypesVtbl IEnumMediaTypesImpl_Vtbl;
107
109{
110 ULONG i;
111 IEnumMediaTypesImpl * pEnumMediaTypes = CoTaskMemAlloc(sizeof(IEnumMediaTypesImpl));
112 AM_MEDIA_TYPE amt;
113
114 *ppEnum = NULL;
115
116 if (!pEnumMediaTypes)
117 return E_OUTOFMEMORY;
118
119 pEnumMediaTypes->IEnumMediaTypes_iface.lpVtbl = &IEnumMediaTypesImpl_Vtbl;
120 pEnumMediaTypes->refCount = 1;
121 pEnumMediaTypes->uIndex = 0;
122 pEnumMediaTypes->enumMediaFunction = enumFunc;
123 pEnumMediaTypes->mediaVersionFunction = versionFunc;
124 IPin_AddRef(&basePin->IPin_iface);
125 pEnumMediaTypes->basePin = basePin;
126
127 i = 0;
128 while (enumFunc(basePin, i, &amt) == S_OK)
129 {
130 FreeMediaType(&amt);
131 i++;
132 }
133
134 pEnumMediaTypes->enumMediaDetails.cMediaTypes = i;
135 pEnumMediaTypes->enumMediaDetails.pMediaTypes = CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE) * i);
136 memset(pEnumMediaTypes->enumMediaDetails.pMediaTypes, 0, sizeof(AM_MEDIA_TYPE) * i);
137 for (i = 0; i < pEnumMediaTypes->enumMediaDetails.cMediaTypes; i++)
138 {
139 HRESULT hr;
140
141 if (FAILED(hr = enumFunc(basePin, i, &pEnumMediaTypes->enumMediaDetails.pMediaTypes[i])))
142 {
143 IEnumMediaTypes_Release(&pEnumMediaTypes->IEnumMediaTypes_iface);
144 return hr;
145 }
146 }
147 *ppEnum = &pEnumMediaTypes->IEnumMediaTypes_iface;
148 pEnumMediaTypes->currentVersion = versionFunc(basePin);
149 return S_OK;
150}
151
153{
154 TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ret_iface);
155
157 IsEqualIID(riid, &IID_IEnumMediaTypes))
158 {
159 IEnumMediaTypes_AddRef(iface);
160 *ret_iface = iface;
161 return S_OK;
162 }
163
164 *ret_iface = NULL;
165
166 WARN("No interface for %s\n", debugstr_guid(riid));
167
168 return E_NOINTERFACE;
169}
170
172{
174 ULONG ref = InterlockedIncrement(&This->refCount);
175
176 TRACE("(%p)->(): new ref = %u\n", iface, ref);
177
178 return ref;
179}
180
182{
184 ULONG ref = InterlockedDecrement(&This->refCount);
185
186 TRACE("(%p)->(): new ref = %u\n", iface, ref);
187
188 if (!ref)
189 {
190 ULONG i;
191 for (i = 0; i < This->enumMediaDetails.cMediaTypes; i++)
192 FreeMediaType(&This->enumMediaDetails.pMediaTypes[i]);
193 CoTaskMemFree(This->enumMediaDetails.pMediaTypes);
194 IPin_Release(&This->basePin->IPin_iface);
196 }
197 return ref;
198}
199
200static HRESULT WINAPI IEnumMediaTypesImpl_Next(IEnumMediaTypes * iface, ULONG cMediaTypes, AM_MEDIA_TYPE ** ppMediaTypes, ULONG * pcFetched)
201{
202 ULONG cFetched;
204
205 TRACE("(%p)->(%u, %p, %p)\n", iface, cMediaTypes, ppMediaTypes, pcFetched);
206
207 cFetched = min(This->enumMediaDetails.cMediaTypes, This->uIndex + cMediaTypes) - This->uIndex;
208
209 if (This->currentVersion != This->mediaVersionFunction(This->basePin))
211
212 TRACE("Next uIndex: %u, cFetched: %u\n", This->uIndex, cFetched);
213
214 if (cFetched > 0)
215 {
216 ULONG i;
217 for (i = 0; i < cFetched; i++)
218 if (!(ppMediaTypes[i] = CreateMediaType(&This->enumMediaDetails.pMediaTypes[This->uIndex + i])))
219 {
220 while (i--)
221 DeleteMediaType(ppMediaTypes[i]);
222 *pcFetched = 0;
223 return E_OUTOFMEMORY;
224 }
225 }
226
227 if ((cMediaTypes != 1) || pcFetched)
228 *pcFetched = cFetched;
229
230 This->uIndex += cFetched;
231
232 if (cFetched != cMediaTypes)
233 return S_FALSE;
234 return S_OK;
235}
236
238{
240
241 TRACE("(%p)->(%u)\n", iface, cMediaTypes);
242
243 if (This->currentVersion != This->mediaVersionFunction(This->basePin))
245
246 if (This->uIndex + cMediaTypes < This->enumMediaDetails.cMediaTypes)
247 {
248 This->uIndex += cMediaTypes;
249 return S_OK;
250 }
251 return S_FALSE;
252}
253
255{
256 ULONG i;
257 AM_MEDIA_TYPE amt;
259
260 TRACE("(%p)->()\n", iface);
261
262 for (i = 0; i < This->enumMediaDetails.cMediaTypes; i++)
263 FreeMediaType(&This->enumMediaDetails.pMediaTypes[i]);
264 CoTaskMemFree(This->enumMediaDetails.pMediaTypes);
265
266 i = 0;
267 while (This->enumMediaFunction(This->basePin, i, &amt) == S_OK) i++;
268
269 This->enumMediaDetails.cMediaTypes = i;
270 This->enumMediaDetails.pMediaTypes = CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE) * i);
271 for (i = 0; i < This->enumMediaDetails.cMediaTypes; i++)
272 {
273 This->enumMediaFunction(This->basePin, i,&amt);
274 if (FAILED(CopyMediaType(&This->enumMediaDetails.pMediaTypes[i], &amt)))
275 {
276 while (i--)
277 FreeMediaType(&This->enumMediaDetails.pMediaTypes[i]);
278 CoTaskMemFree(This->enumMediaDetails.pMediaTypes);
279 return E_OUTOFMEMORY;
280 }
281 }
282
283 This->currentVersion = This->mediaVersionFunction(This->basePin);
284 This->uIndex = 0;
285
286 return S_OK;
287}
288
290{
291 HRESULT hr;
293
294 TRACE("(%p)->(%p)\n", iface, ppEnum);
295
296 hr = EnumMediaTypes_Construct(This->basePin, This->enumMediaFunction, This->mediaVersionFunction, ppEnum);
297 if (FAILED(hr))
298 return hr;
299 return IEnumMediaTypes_Skip(*ppEnum, This->uIndex);
300}
301
302static const IEnumMediaTypesVtbl IEnumMediaTypesImpl_Vtbl =
303{
311};
#define InterlockedIncrement
Definition: armddk.h:53
#define InterlockedDecrement
Definition: armddk.h:52
#define WINE_DEFAULT_DEBUG_CHANNEL(t)
Definition: precomp.h:23
const GUID IID_IUnknown
#define WARN(fmt,...)
Definition: debug.h:115
#define E_OUTOFMEMORY
Definition: ddrawi.h:100
#define NULL
Definition: types.h:112
GLenum src
Definition: glext.h:6340
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
VOID WINAPI CoTaskMemFree(LPVOID ptr)
Definition: ifs.c:442
LPVOID WINAPI CoTaskMemAlloc(SIZE_T size)
Definition: ifs.c:426
REFIID riid
Definition: atlbase.h:39
#define S_OK
Definition: intsafe.h:52
#define FAILED(hr)
Definition: intsafe.h:51
#define debugstr_guid
Definition: kernel32.h:35
static IEnumMediaTypesImpl * impl_from_IEnumMediaTypes(IEnumMediaTypes *iface)
Definition: mediatype.c:101
static HRESULT WINAPI IEnumMediaTypesImpl_Reset(IEnumMediaTypes *iface)
Definition: mediatype.c:254
static const struct IEnumMediaTypesVtbl IEnumMediaTypesImpl_Vtbl
Definition: mediatype.c:106
static HRESULT WINAPI IEnumMediaTypesImpl_Clone(IEnumMediaTypes *iface, IEnumMediaTypes **ppEnum)
Definition: mediatype.c:289
struct tagENUMEDIADETAILS ENUMMEDIADETAILS
void WINAPI FreeMediaType(AM_MEDIA_TYPE *pMediaType)
Definition: mediatype.c:46
static HRESULT WINAPI IEnumMediaTypesImpl_Next(IEnumMediaTypes *iface, ULONG cMediaTypes, AM_MEDIA_TYPE **ppMediaTypes, ULONG *pcFetched)
Definition: mediatype.c:200
HRESULT WINAPI CopyMediaType(AM_MEDIA_TYPE *dest, const AM_MEDIA_TYPE *src)
Definition: mediatype.c:31
static HRESULT WINAPI IEnumMediaTypesImpl_Skip(IEnumMediaTypes *iface, ULONG cMediaTypes)
Definition: mediatype.c:237
static ULONG WINAPI IEnumMediaTypesImpl_AddRef(IEnumMediaTypes *iface)
Definition: mediatype.c:171
static ULONG WINAPI IEnumMediaTypesImpl_Release(IEnumMediaTypes *iface)
Definition: mediatype.c:181
HRESULT WINAPI EnumMediaTypes_Construct(BasePin *basePin, BasePin_GetMediaType enumFunc, BasePin_GetMediaTypeVersion versionFunc, IEnumMediaTypes **ppEnum)
Definition: mediatype.c:108
AM_MEDIA_TYPE *WINAPI CreateMediaType(AM_MEDIA_TYPE const *pSrc)
Definition: mediatype.c:60
static HRESULT WINAPI IEnumMediaTypesImpl_QueryInterface(IEnumMediaTypes *iface, REFIID riid, void **ret_iface)
Definition: mediatype.c:152
void WINAPI DeleteMediaType(AM_MEDIA_TYPE *pMediaType)
Definition: mediatype.c:77
#define memcpy(s1, s2, n)
Definition: mkisofs.h:878
static char * dest
Definition: rtl.c:135
#define min(a, b)
Definition: monoChain.cc:55
long LONG
Definition: pedump.c:60
#define IsEqualIID(riid1, riid2)
Definition: guiddef.h:95
#define REFIID
Definition: guiddef.h:118
#define memset(x, y, z)
Definition: compat.h:39
HRESULT hr
Definition: shlfolder.c:183
#define TRACE(s)
Definition: solgame.cpp:4
HRESULT(WINAPI * BasePin_GetMediaType)(BasePin *This, int iPosition, AM_MEDIA_TYPE *amt)
Definition: strmbase.h:51
LONG(WINAPI * BasePin_GetMediaTypeVersion)(BasePin *This)
Definition: strmbase.h:50
IPin IPin_iface
Definition: strmbase.h:35
BasePin_GetMediaType enumMediaFunction
Definition: mediatype.c:94
BasePin_GetMediaTypeVersion mediaVersionFunction
Definition: mediatype.c:95
ENUMMEDIADETAILS enumMediaDetails
Definition: mediatype.c:97
BasePin * basePin
Definition: mediatype.c:93
IEnumMediaTypes IEnumMediaTypes_iface
Definition: filtergraph.c:749
Definition: send.c:48
AM_MEDIA_TYPE * pMediaTypes
Definition: mediatype.c:86
#define CONTAINING_RECORD(address, type, field)
Definition: typedefs.h:260
uint32_t ULONG
Definition: typedefs.h:59
#define VFW_E_ENUM_OUT_OF_SYNC
Definition: vfwmsgs.h:42
#define WINAPI
Definition: msvc.h:6
#define S_FALSE
Definition: winerror.h:2357
#define E_NOINTERFACE
Definition: winerror.h:2364