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
22 #ifndef AVDEVICE_DSHOW_H
23 #define AVDEVICE_DSHOW_H
31 #define NO_DSHOW_STRSAFE
35 /* EC_DEVICE_LOST is not defined in MinGW dshow headers. */
36 #ifndef EC_DEVICE_LOST
37 #define EC_DEVICE_LOST 0x1f
40 long ff_copy_dshow_media_type(AM_MEDIA_TYPE *dst, const AM_MEDIA_TYPE *src);
41 void ff_print_VIDEO_STREAM_CONFIG_CAPS(const VIDEO_STREAM_CONFIG_CAPS *caps);
42 void ff_print_AUDIO_STREAM_CONFIG_CAPS(const AUDIO_STREAM_CONFIG_CAPS *caps);
43 void ff_print_AM_MEDIA_TYPE(const AM_MEDIA_TYPE *type);
44 void ff_printGUID(const GUID *g);
47 extern const AVClass *ff_dshow_context_class_ptr;
48 #define dshowdebug(...) av_log(&ff_dshow_context_class_ptr, AV_LOG_DEBUG, __VA_ARGS__)
50 #define dshowdebug(...)
53 static inline void nothing(void *foo)
62 enum dshowDeviceType {
67 #define DECLARE_QUERYINTERFACE(class, ...) \
69 class##_QueryInterface(class *this, const GUID *riid, void **ppvObject) \
71 struct GUIDoffset ifaces[] = __VA_ARGS__; \
73 dshowdebug(AV_STRINGIFY(class)"_QueryInterface(%p, %p, %p)\n", this, riid, ppvObject); \
77 for (i = 0; i < sizeof(ifaces)/sizeof(ifaces[0]); i++) { \
78 if (IsEqualGUID(riid, ifaces[i].iid)) { \
79 void *obj = (void *) ((uint8_t *) this + ifaces[i].offset); \
80 class##_AddRef(this); \
81 dshowdebug("\tfound %d with offset %d\n", i, ifaces[i].offset); \
82 *ppvObject = (void *) obj; \
86 dshowdebug("\tE_NOINTERFACE\n"); \
88 return E_NOINTERFACE; \
90 #define DECLARE_ADDREF(class) \
91 unsigned long WINAPI \
92 class##_AddRef(class *this) \
94 dshowdebug(AV_STRINGIFY(class)"_AddRef(%p)\t%ld\n", this, this->ref+1); \
95 return InterlockedIncrement(&this->ref); \
97 #define DECLARE_RELEASE(class) \
98 unsigned long WINAPI \
99 class##_Release(class *this) \
101 long ref = InterlockedDecrement(&this->ref); \
102 dshowdebug(AV_STRINGIFY(class)"_Release(%p)\t%ld\n", this, ref); \
104 class##_Destroy(this); \
108 #define DECLARE_DESTROY(class, func) \
109 void class##_Destroy(class *this) \
111 dshowdebug(AV_STRINGIFY(class)"_Destroy(%p)\n", this); \
115 CoTaskMemFree(this->vtbl); \
116 CoTaskMemFree(this); \
119 #define DECLARE_CREATE(class, setup, ...) \
120 class *class##_Create(__VA_ARGS__) \
122 class *this = CoTaskMemAlloc(sizeof(class)); \
123 void *vtbl = CoTaskMemAlloc(sizeof(*this->vtbl)); \
124 dshowdebug(AV_STRINGIFY(class)"_Create(%p)\n", this); \
125 if (!this || !vtbl) \
127 ZeroMemory(this, sizeof(class)); \
128 ZeroMemory(vtbl, sizeof(*this->vtbl)); \
133 dshowdebug("created "AV_STRINGIFY(class)" %p\n", this); \
136 class##_Destroy(this); \
137 dshowdebug("could not create "AV_STRINGIFY(class)"\n"); \
141 #define SETVTBL(vtbl, class, fn) \
142 do { (vtbl)->fn = (void *) class##_##fn; } while(0)
144 /*****************************************************************************
145 * Forward Declarations
146 ****************************************************************************/
147 typedef struct libAVPin libAVPin;
148 typedef struct libAVMemInputPin libAVMemInputPin;
149 typedef struct libAVEnumPins libAVEnumPins;
150 typedef struct libAVEnumMediaTypes libAVEnumMediaTypes;
151 typedef struct libAVFilter libAVFilter;
153 /*****************************************************************************
155 ****************************************************************************/
162 IMemInputPinVtbl *imemvtbl;
165 long WINAPI libAVPin_QueryInterface (libAVPin *, const GUID *, void **);
166 unsigned long WINAPI libAVPin_AddRef (libAVPin *);
167 unsigned long WINAPI libAVPin_Release (libAVPin *);
168 long WINAPI libAVPin_Connect (libAVPin *, IPin *, const AM_MEDIA_TYPE *);
169 long WINAPI libAVPin_ReceiveConnection (libAVPin *, IPin *, const AM_MEDIA_TYPE *);
170 long WINAPI libAVPin_Disconnect (libAVPin *);
171 long WINAPI libAVPin_ConnectedTo (libAVPin *, IPin **);
172 long WINAPI libAVPin_ConnectionMediaType (libAVPin *, AM_MEDIA_TYPE *);
173 long WINAPI libAVPin_QueryPinInfo (libAVPin *, PIN_INFO *);
174 long WINAPI libAVPin_QueryDirection (libAVPin *, PIN_DIRECTION *);
175 long WINAPI libAVPin_QueryId (libAVPin *, wchar_t **);
176 long WINAPI libAVPin_QueryAccept (libAVPin *, const AM_MEDIA_TYPE *);
177 long WINAPI libAVPin_EnumMediaTypes (libAVPin *, IEnumMediaTypes **);
178 long WINAPI libAVPin_QueryInternalConnections(libAVPin *, IPin **, unsigned long *);
179 long WINAPI libAVPin_EndOfStream (libAVPin *);
180 long WINAPI libAVPin_BeginFlush (libAVPin *);
181 long WINAPI libAVPin_EndFlush (libAVPin *);
182 long WINAPI libAVPin_NewSegment (libAVPin *, REFERENCE_TIME, REFERENCE_TIME, double);
184 long WINAPI libAVMemInputPin_QueryInterface (libAVMemInputPin *, const GUID *, void **);
185 unsigned long WINAPI libAVMemInputPin_AddRef (libAVMemInputPin *);
186 unsigned long WINAPI libAVMemInputPin_Release (libAVMemInputPin *);
187 long WINAPI libAVMemInputPin_GetAllocator (libAVMemInputPin *, IMemAllocator **);
188 long WINAPI libAVMemInputPin_NotifyAllocator (libAVMemInputPin *, IMemAllocator *, BOOL);
189 long WINAPI libAVMemInputPin_GetAllocatorRequirements(libAVMemInputPin *, ALLOCATOR_PROPERTIES *);
190 long WINAPI libAVMemInputPin_Receive (libAVMemInputPin *, IMediaSample *);
191 long WINAPI libAVMemInputPin_ReceiveMultiple (libAVMemInputPin *, IMediaSample **, long, long *);
192 long WINAPI libAVMemInputPin_ReceiveCanBlock (libAVMemInputPin *);
194 void libAVPin_Destroy(libAVPin *);
195 libAVPin *libAVPin_Create (libAVFilter *filter);
197 void libAVMemInputPin_Destroy(libAVMemInputPin *);
199 /*****************************************************************************
201 ****************************************************************************/
202 struct libAVEnumPins {
210 long WINAPI libAVEnumPins_QueryInterface(libAVEnumPins *, const GUID *, void **);
211 unsigned long WINAPI libAVEnumPins_AddRef (libAVEnumPins *);
212 unsigned long WINAPI libAVEnumPins_Release (libAVEnumPins *);
213 long WINAPI libAVEnumPins_Next (libAVEnumPins *, unsigned long, IPin **, unsigned long *);
214 long WINAPI libAVEnumPins_Skip (libAVEnumPins *, unsigned long);
215 long WINAPI libAVEnumPins_Reset (libAVEnumPins *);
216 long WINAPI libAVEnumPins_Clone (libAVEnumPins *, libAVEnumPins **);
218 void libAVEnumPins_Destroy(libAVEnumPins *);
219 libAVEnumPins *libAVEnumPins_Create (libAVPin *pin, libAVFilter *filter);
221 /*****************************************************************************
222 * libAVEnumMediaTypes
223 ****************************************************************************/
224 struct libAVEnumMediaTypes {
231 long WINAPI libAVEnumMediaTypes_QueryInterface(libAVEnumMediaTypes *, const GUID *, void **);
232 unsigned long WINAPI libAVEnumMediaTypes_AddRef (libAVEnumMediaTypes *);
233 unsigned long WINAPI libAVEnumMediaTypes_Release (libAVEnumMediaTypes *);
234 long WINAPI libAVEnumMediaTypes_Next (libAVEnumMediaTypes *, unsigned long, AM_MEDIA_TYPE **, unsigned long *);
235 long WINAPI libAVEnumMediaTypes_Skip (libAVEnumMediaTypes *, unsigned long);
236 long WINAPI libAVEnumMediaTypes_Reset (libAVEnumMediaTypes *);
237 long WINAPI libAVEnumMediaTypes_Clone (libAVEnumMediaTypes *, libAVEnumMediaTypes **);
239 void libAVEnumMediaTypes_Destroy(libAVEnumMediaTypes *);
240 libAVEnumMediaTypes *libAVEnumMediaTypes_Create(const AM_MEDIA_TYPE *type);
242 /*****************************************************************************
244 ****************************************************************************/
246 IBaseFilterVtbl *vtbl;
252 IReferenceClock *clock;
253 enum dshowDeviceType type;
257 void (*callback)(void *priv_data, int index, uint8_t *buf, int buf_size, int64_t time);
260 long WINAPI libAVFilter_QueryInterface (libAVFilter *, const GUID *, void **);
261 unsigned long WINAPI libAVFilter_AddRef (libAVFilter *);
262 unsigned long WINAPI libAVFilter_Release (libAVFilter *);
263 long WINAPI libAVFilter_GetClassID (libAVFilter *, CLSID *);
264 long WINAPI libAVFilter_Stop (libAVFilter *);
265 long WINAPI libAVFilter_Pause (libAVFilter *);
266 long WINAPI libAVFilter_Run (libAVFilter *, REFERENCE_TIME);
267 long WINAPI libAVFilter_GetState (libAVFilter *, DWORD, FILTER_STATE *);
268 long WINAPI libAVFilter_SetSyncSource (libAVFilter *, IReferenceClock *);
269 long WINAPI libAVFilter_GetSyncSource (libAVFilter *, IReferenceClock **);
270 long WINAPI libAVFilter_EnumPins (libAVFilter *, IEnumPins **);
271 long WINAPI libAVFilter_FindPin (libAVFilter *, const wchar_t *, IPin **);
272 long WINAPI libAVFilter_QueryFilterInfo(libAVFilter *, FILTER_INFO *);
273 long WINAPI libAVFilter_JoinFilterGraph(libAVFilter *, IFilterGraph *, const wchar_t *);
274 long WINAPI libAVFilter_QueryVendorInfo(libAVFilter *, wchar_t **);
276 void libAVFilter_Destroy(libAVFilter *);
277 libAVFilter *libAVFilter_Create (void *, void *, enum dshowDeviceType);
279 #endif /* AVDEVICE_DSHOW_H */