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
34 long ff_copy_dshow_media_type(AM_MEDIA_TYPE *dst, const AM_MEDIA_TYPE *src);
35 void ff_print_VIDEO_STREAM_CONFIG_CAPS(const VIDEO_STREAM_CONFIG_CAPS *caps);
36 void ff_print_AUDIO_STREAM_CONFIG_CAPS(const AUDIO_STREAM_CONFIG_CAPS *caps);
37 void ff_print_AM_MEDIA_TYPE(const AM_MEDIA_TYPE *type);
38 void ff_printGUID(const GUID *g);
41 extern const AVClass *ff_dshow_context_class_ptr;
42 #define dshowdebug(...) av_log(&ff_dshow_context_class_ptr, AV_LOG_DEBUG, __VA_ARGS__)
44 #define dshowdebug(...)
47 static inline void nothing(void *foo)
56 enum dshowDeviceType {
61 #define DECLARE_QUERYINTERFACE(class, ...) \
63 class##_QueryInterface(class *this, const GUID *riid, void **ppvObject) \
65 struct GUIDoffset ifaces[] = __VA_ARGS__; \
67 dshowdebug(AV_STRINGIFY(class)"_QueryInterface(%p, %p, %p)\n", this, riid, ppvObject); \
71 for (i = 0; i < sizeof(ifaces)/sizeof(ifaces[0]); i++) { \
72 if (IsEqualGUID(riid, ifaces[i].iid)) { \
73 void *obj = (void *) ((uint8_t *) this + ifaces[i].offset); \
74 class##_AddRef(this); \
75 dshowdebug("\tfound %d with offset %d\n", i, ifaces[i].offset); \
76 *ppvObject = (void *) obj; \
80 dshowdebug("\tE_NOINTERFACE\n"); \
82 return E_NOINTERFACE; \
84 #define DECLARE_ADDREF(class) \
85 unsigned long WINAPI \
86 class##_AddRef(class *this) \
88 dshowdebug(AV_STRINGIFY(class)"_AddRef(%p)\t%ld\n", this, this->ref+1); \
89 return InterlockedIncrement(&this->ref); \
91 #define DECLARE_RELEASE(class) \
92 unsigned long WINAPI \
93 class##_Release(class *this) \
95 long ref = InterlockedDecrement(&this->ref); \
96 dshowdebug(AV_STRINGIFY(class)"_Release(%p)\t%ld\n", this, ref); \
98 class##_Destroy(this); \
102 #define DECLARE_DESTROY(class, func) \
103 void class##_Destroy(class *this) \
105 dshowdebug(AV_STRINGIFY(class)"_Destroy(%p)\n", this); \
109 CoTaskMemFree(this->vtbl); \
110 CoTaskMemFree(this); \
113 #define DECLARE_CREATE(class, setup, ...) \
114 class *class##_Create(__VA_ARGS__) \
116 class *this = CoTaskMemAlloc(sizeof(class)); \
117 void *vtbl = CoTaskMemAlloc(sizeof(*this->vtbl)); \
118 dshowdebug(AV_STRINGIFY(class)"_Create(%p)\n", this); \
119 if (!this || !vtbl) \
121 ZeroMemory(this, sizeof(class)); \
122 ZeroMemory(vtbl, sizeof(*this->vtbl)); \
127 dshowdebug("created "AV_STRINGIFY(class)" %p\n", this); \
130 class##_Destroy(this); \
131 dshowdebug("could not create "AV_STRINGIFY(class)"\n"); \
135 #define SETVTBL(vtbl, class, fn) \
136 do { (vtbl)->fn = (void *) class##_##fn; } while(0)
138 /*****************************************************************************
139 * Forward Declarations
140 ****************************************************************************/
141 typedef struct libAVPin libAVPin;
142 typedef struct libAVMemInputPin libAVMemInputPin;
143 typedef struct libAVEnumPins libAVEnumPins;
144 typedef struct libAVEnumMediaTypes libAVEnumMediaTypes;
145 typedef struct libAVFilter libAVFilter;
147 /*****************************************************************************
149 ****************************************************************************/
156 IMemInputPinVtbl *imemvtbl;
159 long WINAPI libAVPin_QueryInterface (libAVPin *, const GUID *, void **);
160 unsigned long WINAPI libAVPin_AddRef (libAVPin *);
161 unsigned long WINAPI libAVPin_Release (libAVPin *);
162 long WINAPI libAVPin_Connect (libAVPin *, IPin *, const AM_MEDIA_TYPE *);
163 long WINAPI libAVPin_ReceiveConnection (libAVPin *, IPin *, const AM_MEDIA_TYPE *);
164 long WINAPI libAVPin_Disconnect (libAVPin *);
165 long WINAPI libAVPin_ConnectedTo (libAVPin *, IPin **);
166 long WINAPI libAVPin_ConnectionMediaType (libAVPin *, AM_MEDIA_TYPE *);
167 long WINAPI libAVPin_QueryPinInfo (libAVPin *, PIN_INFO *);
168 long WINAPI libAVPin_QueryDirection (libAVPin *, PIN_DIRECTION *);
169 long WINAPI libAVPin_QueryId (libAVPin *, wchar_t **);
170 long WINAPI libAVPin_QueryAccept (libAVPin *, const AM_MEDIA_TYPE *);
171 long WINAPI libAVPin_EnumMediaTypes (libAVPin *, IEnumMediaTypes **);
172 long WINAPI libAVPin_QueryInternalConnections(libAVPin *, IPin **, unsigned long *);
173 long WINAPI libAVPin_EndOfStream (libAVPin *);
174 long WINAPI libAVPin_BeginFlush (libAVPin *);
175 long WINAPI libAVPin_EndFlush (libAVPin *);
176 long WINAPI libAVPin_NewSegment (libAVPin *, REFERENCE_TIME, REFERENCE_TIME, double);
178 long WINAPI libAVMemInputPin_QueryInterface (libAVMemInputPin *, const GUID *, void **);
179 unsigned long WINAPI libAVMemInputPin_AddRef (libAVMemInputPin *);
180 unsigned long WINAPI libAVMemInputPin_Release (libAVMemInputPin *);
181 long WINAPI libAVMemInputPin_GetAllocator (libAVMemInputPin *, IMemAllocator **);
182 long WINAPI libAVMemInputPin_NotifyAllocator (libAVMemInputPin *, IMemAllocator *, BOOL);
183 long WINAPI libAVMemInputPin_GetAllocatorRequirements(libAVMemInputPin *, ALLOCATOR_PROPERTIES *);
184 long WINAPI libAVMemInputPin_Receive (libAVMemInputPin *, IMediaSample *);
185 long WINAPI libAVMemInputPin_ReceiveMultiple (libAVMemInputPin *, IMediaSample **, long, long *);
186 long WINAPI libAVMemInputPin_ReceiveCanBlock (libAVMemInputPin *);
188 void libAVPin_Destroy(libAVPin *);
189 libAVPin *libAVPin_Create (libAVFilter *filter);
191 void libAVMemInputPin_Destroy(libAVMemInputPin *);
193 /*****************************************************************************
195 ****************************************************************************/
196 struct libAVEnumPins {
204 long WINAPI libAVEnumPins_QueryInterface(libAVEnumPins *, const GUID *, void **);
205 unsigned long WINAPI libAVEnumPins_AddRef (libAVEnumPins *);
206 unsigned long WINAPI libAVEnumPins_Release (libAVEnumPins *);
207 long WINAPI libAVEnumPins_Next (libAVEnumPins *, unsigned long, IPin **, unsigned long *);
208 long WINAPI libAVEnumPins_Skip (libAVEnumPins *, unsigned long);
209 long WINAPI libAVEnumPins_Reset (libAVEnumPins *);
210 long WINAPI libAVEnumPins_Clone (libAVEnumPins *, libAVEnumPins **);
212 void libAVEnumPins_Destroy(libAVEnumPins *);
213 libAVEnumPins *libAVEnumPins_Create (libAVPin *pin, libAVFilter *filter);
215 /*****************************************************************************
216 * libAVEnumMediaTypes
217 ****************************************************************************/
218 struct libAVEnumMediaTypes {
225 long WINAPI libAVEnumMediaTypes_QueryInterface(libAVEnumMediaTypes *, const GUID *, void **);
226 unsigned long WINAPI libAVEnumMediaTypes_AddRef (libAVEnumMediaTypes *);
227 unsigned long WINAPI libAVEnumMediaTypes_Release (libAVEnumMediaTypes *);
228 long WINAPI libAVEnumMediaTypes_Next (libAVEnumMediaTypes *, unsigned long, AM_MEDIA_TYPE **, unsigned long *);
229 long WINAPI libAVEnumMediaTypes_Skip (libAVEnumMediaTypes *, unsigned long);
230 long WINAPI libAVEnumMediaTypes_Reset (libAVEnumMediaTypes *);
231 long WINAPI libAVEnumMediaTypes_Clone (libAVEnumMediaTypes *, libAVEnumMediaTypes **);
233 void libAVEnumMediaTypes_Destroy(libAVEnumMediaTypes *);
234 libAVEnumMediaTypes *libAVEnumMediaTypes_Create(const AM_MEDIA_TYPE *type);
236 /*****************************************************************************
238 ****************************************************************************/
240 IBaseFilterVtbl *vtbl;
246 IReferenceClock *clock;
247 enum dshowDeviceType type;
251 void (*callback)(void *priv_data, int index, uint8_t *buf, int buf_size, int64_t time);
254 long WINAPI libAVFilter_QueryInterface (libAVFilter *, const GUID *, void **);
255 unsigned long WINAPI libAVFilter_AddRef (libAVFilter *);
256 unsigned long WINAPI libAVFilter_Release (libAVFilter *);
257 long WINAPI libAVFilter_GetClassID (libAVFilter *, CLSID *);
258 long WINAPI libAVFilter_Stop (libAVFilter *);
259 long WINAPI libAVFilter_Pause (libAVFilter *);
260 long WINAPI libAVFilter_Run (libAVFilter *, REFERENCE_TIME);
261 long WINAPI libAVFilter_GetState (libAVFilter *, DWORD, FILTER_STATE *);
262 long WINAPI libAVFilter_SetSyncSource (libAVFilter *, IReferenceClock *);
263 long WINAPI libAVFilter_GetSyncSource (libAVFilter *, IReferenceClock **);
264 long WINAPI libAVFilter_EnumPins (libAVFilter *, IEnumPins **);
265 long WINAPI libAVFilter_FindPin (libAVFilter *, const wchar_t *, IPin **);
266 long WINAPI libAVFilter_QueryFilterInfo(libAVFilter *, FILTER_INFO *);
267 long WINAPI libAVFilter_JoinFilterGraph(libAVFilter *, IFilterGraph *, const wchar_t *);
268 long WINAPI libAVFilter_QueryVendorInfo(libAVFilter *, wchar_t **);
270 void libAVFilter_Destroy(libAVFilter *);
271 libAVFilter *libAVFilter_Create (void *, void *, enum dshowDeviceType);
273 #endif /* AVDEVICE_DSHOW_H */