2 * DirectShow capture interface
3 * Copyright (c) 2010 Ramiro Polla
5 * This file is part of FFmpeg.
7 * FFmpeg 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.
12 * FFmpeg 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.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
31 long ff_copy_dshow_media_type(AM_MEDIA_TYPE *dst, const AM_MEDIA_TYPE *src);
32 void ff_print_AM_MEDIA_TYPE(const AM_MEDIA_TYPE *type);
33 void ff_printGUID(const GUID *g);
36 extern const AVClass *ff_dshow_context_class_ptr;
37 #define dshowdebug(...) av_log(&ff_dshow_context_class_ptr, AV_LOG_DEBUG, __VA_ARGS__)
39 #define dshowdebug(...)
42 static inline void nothing(void *foo)
51 enum dshowDeviceType {
56 #define DECLARE_QUERYINTERFACE(class, ...) \
58 class##_QueryInterface(class *this, const GUID *riid, void **ppvObject) \
60 struct GUIDoffset ifaces[] = __VA_ARGS__; \
62 dshowdebug(AV_STRINGIFY(class)"_QueryInterface(%p, %p, %p)\n", this, riid, ppvObject); \
66 for (i = 0; i < sizeof(ifaces)/sizeof(ifaces[0]); i++) { \
67 if (IsEqualGUID(riid, ifaces[i].iid)) { \
68 void *obj = (void *) ((uint8_t *) this + ifaces[i].offset); \
69 class##_AddRef(this); \
70 dshowdebug("\tfound %d with offset %d\n", i, ifaces[i].offset); \
71 *ppvObject = (void *) obj; \
75 dshowdebug("\tE_NOINTERFACE\n"); \
77 return E_NOINTERFACE; \
79 #define DECLARE_ADDREF(class) \
80 unsigned long WINAPI \
81 class##_AddRef(class *this) \
83 dshowdebug(AV_STRINGIFY(class)"_AddRef(%p)\t%ld\n", this, this->ref+1); \
84 return InterlockedIncrement(&this->ref); \
86 #define DECLARE_RELEASE(class) \
87 unsigned long WINAPI \
88 class##_Release(class *this) \
90 long ref = InterlockedDecrement(&this->ref); \
91 dshowdebug(AV_STRINGIFY(class)"_Release(%p)\t%ld\n", this, ref); \
93 class##_Destroy(this); \
97 #define DECLARE_DESTROY(class, func) \
98 void class##_Destroy(class *this) \
100 dshowdebug(AV_STRINGIFY(class)"_Destroy(%p)\n", this); \
104 CoTaskMemFree(this->vtbl); \
105 CoTaskMemFree(this); \
108 #define DECLARE_CREATE(class, setup, ...) \
109 class *class##_Create(__VA_ARGS__) \
111 class *this = CoTaskMemAlloc(sizeof(class)); \
112 void *vtbl = CoTaskMemAlloc(sizeof(*this->vtbl)); \
113 dshowdebug(AV_STRINGIFY(class)"_Create(%p)\n", this); \
114 if (!this || !vtbl) \
116 ZeroMemory(this, sizeof(class)); \
117 ZeroMemory(vtbl, sizeof(*this->vtbl)); \
122 dshowdebug("created "AV_STRINGIFY(class)" %p\n", this); \
125 class##_Destroy(this); \
126 dshowdebug("could not create "AV_STRINGIFY(class)"\n"); \
130 #define SETVTBL(vtbl, class, fn) \
131 do { (vtbl)->fn = (void *) class##_##fn; } while(0)
133 /*****************************************************************************
134 * Forward Declarations
135 ****************************************************************************/
136 typedef struct libAVPin libAVPin;
137 typedef struct libAVMemInputPin libAVMemInputPin;
138 typedef struct libAVEnumPins libAVEnumPins;
139 typedef struct libAVEnumMediaTypes libAVEnumMediaTypes;
140 typedef struct libAVFilter libAVFilter;
142 /*****************************************************************************
144 ****************************************************************************/
151 IMemInputPinVtbl *imemvtbl;
154 long WINAPI libAVPin_QueryInterface (libAVPin *, const GUID *, void **);
155 unsigned long WINAPI libAVPin_AddRef (libAVPin *);
156 unsigned long WINAPI libAVPin_Release (libAVPin *);
157 long WINAPI libAVPin_Connect (libAVPin *, IPin *, const AM_MEDIA_TYPE *);
158 long WINAPI libAVPin_ReceiveConnection (libAVPin *, IPin *, const AM_MEDIA_TYPE *);
159 long WINAPI libAVPin_Disconnect (libAVPin *);
160 long WINAPI libAVPin_ConnectedTo (libAVPin *, IPin **);
161 long WINAPI libAVPin_ConnectionMediaType (libAVPin *, AM_MEDIA_TYPE *);
162 long WINAPI libAVPin_QueryPinInfo (libAVPin *, PIN_INFO *);
163 long WINAPI libAVPin_QueryDirection (libAVPin *, PIN_DIRECTION *);
164 long WINAPI libAVPin_QueryId (libAVPin *, wchar_t **);
165 long WINAPI libAVPin_QueryAccept (libAVPin *, const AM_MEDIA_TYPE *);
166 long WINAPI libAVPin_EnumMediaTypes (libAVPin *, IEnumMediaTypes **);
167 long WINAPI libAVPin_QueryInternalConnections(libAVPin *, IPin **, unsigned long *);
168 long WINAPI libAVPin_EndOfStream (libAVPin *);
169 long WINAPI libAVPin_BeginFlush (libAVPin *);
170 long WINAPI libAVPin_EndFlush (libAVPin *);
171 long WINAPI libAVPin_NewSegment (libAVPin *, REFERENCE_TIME, REFERENCE_TIME, double);
173 long WINAPI libAVMemInputPin_QueryInterface (libAVMemInputPin *, const GUID *, void **);
174 unsigned long WINAPI libAVMemInputPin_AddRef (libAVMemInputPin *);
175 unsigned long WINAPI libAVMemInputPin_Release (libAVMemInputPin *);
176 long WINAPI libAVMemInputPin_GetAllocator (libAVMemInputPin *, IMemAllocator **);
177 long WINAPI libAVMemInputPin_NotifyAllocator (libAVMemInputPin *, IMemAllocator *, WINBOOL);
178 long WINAPI libAVMemInputPin_GetAllocatorRequirements(libAVMemInputPin *, ALLOCATOR_PROPERTIES *);
179 long WINAPI libAVMemInputPin_Receive (libAVMemInputPin *, IMediaSample *);
180 long WINAPI libAVMemInputPin_ReceiveMultiple (libAVMemInputPin *, IMediaSample **, long, long *);
181 long WINAPI libAVMemInputPin_ReceiveCanBlock (libAVMemInputPin *);
183 void libAVPin_Destroy(libAVPin *);
184 libAVPin *libAVPin_Create (libAVFilter *filter);
186 void libAVMemInputPin_Destroy(libAVMemInputPin *);
188 /*****************************************************************************
190 ****************************************************************************/
191 struct libAVEnumPins {
199 long WINAPI libAVEnumPins_QueryInterface(libAVEnumPins *, const GUID *, void **);
200 unsigned long WINAPI libAVEnumPins_AddRef (libAVEnumPins *);
201 unsigned long WINAPI libAVEnumPins_Release (libAVEnumPins *);
202 long WINAPI libAVEnumPins_Next (libAVEnumPins *, unsigned long, IPin **, unsigned long *);
203 long WINAPI libAVEnumPins_Skip (libAVEnumPins *, unsigned long);
204 long WINAPI libAVEnumPins_Reset (libAVEnumPins *);
205 long WINAPI libAVEnumPins_Clone (libAVEnumPins *, libAVEnumPins **);
207 void libAVEnumPins_Destroy(libAVEnumPins *);
208 libAVEnumPins *libAVEnumPins_Create (libAVPin *pin, libAVFilter *filter);
210 /*****************************************************************************
211 * libAVEnumMediaTypes
212 ****************************************************************************/
213 struct libAVEnumMediaTypes {
220 long WINAPI libAVEnumMediaTypes_QueryInterface(libAVEnumMediaTypes *, const GUID *, void **);
221 unsigned long WINAPI libAVEnumMediaTypes_AddRef (libAVEnumMediaTypes *);
222 unsigned long WINAPI libAVEnumMediaTypes_Release (libAVEnumMediaTypes *);
223 long WINAPI libAVEnumMediaTypes_Next (libAVEnumMediaTypes *, unsigned long, AM_MEDIA_TYPE **, unsigned long *);
224 long WINAPI libAVEnumMediaTypes_Skip (libAVEnumMediaTypes *, unsigned long);
225 long WINAPI libAVEnumMediaTypes_Reset (libAVEnumMediaTypes *);
226 long WINAPI libAVEnumMediaTypes_Clone (libAVEnumMediaTypes *, libAVEnumMediaTypes **);
228 void libAVEnumMediaTypes_Destroy(libAVEnumMediaTypes *);
229 libAVEnumMediaTypes *libAVEnumMediaTypes_Create(const AM_MEDIA_TYPE *type);
231 /*****************************************************************************
233 ****************************************************************************/
235 IBaseFilterVtbl *vtbl;
241 IReferenceClock *clock;
242 enum dshowDeviceType type;
246 void (*callback)(void *priv_data, int index, uint8_t *buf, int buf_size, int64_t time);
249 long WINAPI libAVFilter_QueryInterface (libAVFilter *, const GUID *, void **);
250 unsigned long WINAPI libAVFilter_AddRef (libAVFilter *);
251 unsigned long WINAPI libAVFilter_Release (libAVFilter *);
252 long WINAPI libAVFilter_GetClassID (libAVFilter *, CLSID *);
253 long WINAPI libAVFilter_Stop (libAVFilter *);
254 long WINAPI libAVFilter_Pause (libAVFilter *);
255 long WINAPI libAVFilter_Run (libAVFilter *, REFERENCE_TIME);
256 long WINAPI libAVFilter_GetState (libAVFilter *, DWORD, FILTER_STATE *);
257 long WINAPI libAVFilter_SetSyncSource (libAVFilter *, IReferenceClock *);
258 long WINAPI libAVFilter_GetSyncSource (libAVFilter *, IReferenceClock **);
259 long WINAPI libAVFilter_EnumPins (libAVFilter *, IEnumPins **);
260 long WINAPI libAVFilter_FindPin (libAVFilter *, const wchar_t *, IPin **);
261 long WINAPI libAVFilter_QueryFilterInfo(libAVFilter *, FILTER_INFO *);
262 long WINAPI libAVFilter_JoinFilterGraph(libAVFilter *, IFilterGraph *, const wchar_t *);
263 long WINAPI libAVFilter_QueryVendorInfo(libAVFilter *, wchar_t **);
265 void libAVFilter_Destroy(libAVFilter *);
266 libAVFilter *libAVFilter_Create (void *, void *, enum dshowDeviceType);