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
30 #define WIN32_LEAN_AND_MEAN
32 #define NO_DSHOW_STRSAFE
36 /* EC_DEVICE_LOST is not defined in MinGW dshow headers. */
37 #ifndef EC_DEVICE_LOST
38 #define EC_DEVICE_LOST 0x1f
41 long ff_copy_dshow_media_type(AM_MEDIA_TYPE *dst, const AM_MEDIA_TYPE *src);
42 void ff_print_VIDEO_STREAM_CONFIG_CAPS(const VIDEO_STREAM_CONFIG_CAPS *caps);
43 void ff_print_AUDIO_STREAM_CONFIG_CAPS(const AUDIO_STREAM_CONFIG_CAPS *caps);
44 void ff_print_AM_MEDIA_TYPE(const AM_MEDIA_TYPE *type);
45 void ff_printGUID(const GUID *g);
48 extern const AVClass *ff_dshow_context_class_ptr;
49 #define dshowdebug(...) av_log(&ff_dshow_context_class_ptr, AV_LOG_DEBUG, __VA_ARGS__)
51 #define dshowdebug(...)
54 static inline void nothing(void *foo)
63 enum dshowDeviceType {
68 enum dshowSourceFilterType {
69 VideoSourceDevice = 0,
70 AudioSourceDevice = 1,
73 #define DECLARE_QUERYINTERFACE(class, ...) \
75 class##_QueryInterface(class *this, const GUID *riid, void **ppvObject) \
77 struct GUIDoffset ifaces[] = __VA_ARGS__; \
79 dshowdebug(AV_STRINGIFY(class)"_QueryInterface(%p, %p, %p)\n", this, riid, ppvObject); \
83 for (i = 0; i < sizeof(ifaces)/sizeof(ifaces[0]); i++) { \
84 if (IsEqualGUID(riid, ifaces[i].iid)) { \
85 void *obj = (void *) ((uint8_t *) this + ifaces[i].offset); \
86 class##_AddRef(this); \
87 dshowdebug("\tfound %d with offset %d\n", i, ifaces[i].offset); \
88 *ppvObject = (void *) obj; \
92 dshowdebug("\tE_NOINTERFACE\n"); \
94 return E_NOINTERFACE; \
96 #define DECLARE_ADDREF(class) \
97 unsigned long WINAPI \
98 class##_AddRef(class *this) \
100 dshowdebug(AV_STRINGIFY(class)"_AddRef(%p)\t%ld\n", this, this->ref+1); \
101 return InterlockedIncrement(&this->ref); \
103 #define DECLARE_RELEASE(class) \
104 unsigned long WINAPI \
105 class##_Release(class *this) \
107 long ref = InterlockedDecrement(&this->ref); \
108 dshowdebug(AV_STRINGIFY(class)"_Release(%p)\t%ld\n", this, ref); \
110 class##_Destroy(this); \
114 #define DECLARE_DESTROY(class, func) \
115 void class##_Destroy(class *this) \
117 dshowdebug(AV_STRINGIFY(class)"_Destroy(%p)\n", this); \
121 CoTaskMemFree(this->vtbl); \
122 CoTaskMemFree(this); \
125 #define DECLARE_CREATE(class, setup, ...) \
126 class *class##_Create(__VA_ARGS__) \
128 class *this = CoTaskMemAlloc(sizeof(class)); \
129 void *vtbl = CoTaskMemAlloc(sizeof(*this->vtbl)); \
130 dshowdebug(AV_STRINGIFY(class)"_Create(%p)\n", this); \
131 if (!this || !vtbl) \
133 ZeroMemory(this, sizeof(class)); \
134 ZeroMemory(vtbl, sizeof(*this->vtbl)); \
139 dshowdebug("created "AV_STRINGIFY(class)" %p\n", this); \
142 class##_Destroy(this); \
143 dshowdebug("could not create "AV_STRINGIFY(class)"\n"); \
147 #define SETVTBL(vtbl, class, fn) \
148 do { (vtbl)->fn = (void *) class##_##fn; } while(0)
150 /*****************************************************************************
151 * Forward Declarations
152 ****************************************************************************/
153 typedef struct libAVPin libAVPin;
154 typedef struct libAVMemInputPin libAVMemInputPin;
155 typedef struct libAVEnumPins libAVEnumPins;
156 typedef struct libAVEnumMediaTypes libAVEnumMediaTypes;
157 typedef struct libAVFilter libAVFilter;
159 /*****************************************************************************
161 ****************************************************************************/
168 IMemInputPinVtbl *imemvtbl;
171 long WINAPI libAVPin_QueryInterface (libAVPin *, const GUID *, void **);
172 unsigned long WINAPI libAVPin_AddRef (libAVPin *);
173 unsigned long WINAPI libAVPin_Release (libAVPin *);
174 long WINAPI libAVPin_Connect (libAVPin *, IPin *, const AM_MEDIA_TYPE *);
175 long WINAPI libAVPin_ReceiveConnection (libAVPin *, IPin *, const AM_MEDIA_TYPE *);
176 long WINAPI libAVPin_Disconnect (libAVPin *);
177 long WINAPI libAVPin_ConnectedTo (libAVPin *, IPin **);
178 long WINAPI libAVPin_ConnectionMediaType (libAVPin *, AM_MEDIA_TYPE *);
179 long WINAPI libAVPin_QueryPinInfo (libAVPin *, PIN_INFO *);
180 long WINAPI libAVPin_QueryDirection (libAVPin *, PIN_DIRECTION *);
181 long WINAPI libAVPin_QueryId (libAVPin *, wchar_t **);
182 long WINAPI libAVPin_QueryAccept (libAVPin *, const AM_MEDIA_TYPE *);
183 long WINAPI libAVPin_EnumMediaTypes (libAVPin *, IEnumMediaTypes **);
184 long WINAPI libAVPin_QueryInternalConnections(libAVPin *, IPin **, unsigned long *);
185 long WINAPI libAVPin_EndOfStream (libAVPin *);
186 long WINAPI libAVPin_BeginFlush (libAVPin *);
187 long WINAPI libAVPin_EndFlush (libAVPin *);
188 long WINAPI libAVPin_NewSegment (libAVPin *, REFERENCE_TIME, REFERENCE_TIME, double);
190 long WINAPI libAVMemInputPin_QueryInterface (libAVMemInputPin *, const GUID *, void **);
191 unsigned long WINAPI libAVMemInputPin_AddRef (libAVMemInputPin *);
192 unsigned long WINAPI libAVMemInputPin_Release (libAVMemInputPin *);
193 long WINAPI libAVMemInputPin_GetAllocator (libAVMemInputPin *, IMemAllocator **);
194 long WINAPI libAVMemInputPin_NotifyAllocator (libAVMemInputPin *, IMemAllocator *, BOOL);
195 long WINAPI libAVMemInputPin_GetAllocatorRequirements(libAVMemInputPin *, ALLOCATOR_PROPERTIES *);
196 long WINAPI libAVMemInputPin_Receive (libAVMemInputPin *, IMediaSample *);
197 long WINAPI libAVMemInputPin_ReceiveMultiple (libAVMemInputPin *, IMediaSample **, long, long *);
198 long WINAPI libAVMemInputPin_ReceiveCanBlock (libAVMemInputPin *);
200 void libAVPin_Destroy(libAVPin *);
201 libAVPin *libAVPin_Create (libAVFilter *filter);
203 void libAVMemInputPin_Destroy(libAVMemInputPin *);
205 /*****************************************************************************
207 ****************************************************************************/
208 struct libAVEnumPins {
216 long WINAPI libAVEnumPins_QueryInterface(libAVEnumPins *, const GUID *, void **);
217 unsigned long WINAPI libAVEnumPins_AddRef (libAVEnumPins *);
218 unsigned long WINAPI libAVEnumPins_Release (libAVEnumPins *);
219 long WINAPI libAVEnumPins_Next (libAVEnumPins *, unsigned long, IPin **, unsigned long *);
220 long WINAPI libAVEnumPins_Skip (libAVEnumPins *, unsigned long);
221 long WINAPI libAVEnumPins_Reset (libAVEnumPins *);
222 long WINAPI libAVEnumPins_Clone (libAVEnumPins *, libAVEnumPins **);
224 void libAVEnumPins_Destroy(libAVEnumPins *);
225 libAVEnumPins *libAVEnumPins_Create (libAVPin *pin, libAVFilter *filter);
227 /*****************************************************************************
228 * libAVEnumMediaTypes
229 ****************************************************************************/
230 struct libAVEnumMediaTypes {
231 IEnumMediaTypesVtbl *vtbl;
237 long WINAPI libAVEnumMediaTypes_QueryInterface(libAVEnumMediaTypes *, const GUID *, void **);
238 unsigned long WINAPI libAVEnumMediaTypes_AddRef (libAVEnumMediaTypes *);
239 unsigned long WINAPI libAVEnumMediaTypes_Release (libAVEnumMediaTypes *);
240 long WINAPI libAVEnumMediaTypes_Next (libAVEnumMediaTypes *, unsigned long, AM_MEDIA_TYPE **, unsigned long *);
241 long WINAPI libAVEnumMediaTypes_Skip (libAVEnumMediaTypes *, unsigned long);
242 long WINAPI libAVEnumMediaTypes_Reset (libAVEnumMediaTypes *);
243 long WINAPI libAVEnumMediaTypes_Clone (libAVEnumMediaTypes *, libAVEnumMediaTypes **);
245 void libAVEnumMediaTypes_Destroy(libAVEnumMediaTypes *);
246 libAVEnumMediaTypes *libAVEnumMediaTypes_Create(const AM_MEDIA_TYPE *type);
248 /*****************************************************************************
250 ****************************************************************************/
252 IBaseFilterVtbl *vtbl;
258 IReferenceClock *clock;
259 enum dshowDeviceType type;
263 void (*callback)(void *priv_data, int index, uint8_t *buf, int buf_size, int64_t time, enum dshowDeviceType type);
266 long WINAPI libAVFilter_QueryInterface (libAVFilter *, const GUID *, void **);
267 unsigned long WINAPI libAVFilter_AddRef (libAVFilter *);
268 unsigned long WINAPI libAVFilter_Release (libAVFilter *);
269 long WINAPI libAVFilter_GetClassID (libAVFilter *, CLSID *);
270 long WINAPI libAVFilter_Stop (libAVFilter *);
271 long WINAPI libAVFilter_Pause (libAVFilter *);
272 long WINAPI libAVFilter_Run (libAVFilter *, REFERENCE_TIME);
273 long WINAPI libAVFilter_GetState (libAVFilter *, DWORD, FILTER_STATE *);
274 long WINAPI libAVFilter_SetSyncSource (libAVFilter *, IReferenceClock *);
275 long WINAPI libAVFilter_GetSyncSource (libAVFilter *, IReferenceClock **);
276 long WINAPI libAVFilter_EnumPins (libAVFilter *, IEnumPins **);
277 long WINAPI libAVFilter_FindPin (libAVFilter *, const wchar_t *, IPin **);
278 long WINAPI libAVFilter_QueryFilterInfo(libAVFilter *, FILTER_INFO *);
279 long WINAPI libAVFilter_JoinFilterGraph(libAVFilter *, IFilterGraph *, const wchar_t *);
280 long WINAPI libAVFilter_QueryVendorInfo(libAVFilter *, wchar_t **);
282 void libAVFilter_Destroy(libAVFilter *);
283 libAVFilter *libAVFilter_Create (void *, void *, enum dshowDeviceType);
285 /*****************************************************************************
287 ****************************************************************************/
289 const AVClass *class;
291 IGraphBuilder *graph;
293 char *device_name[2];
294 int video_device_number;
295 int audio_device_number;
299 int audio_buffer_size;
300 int crossbar_video_input_pin_number;
301 int crossbar_audio_input_pin_number;
302 char *video_pin_name;
303 char *audio_pin_name;
304 int show_video_device_dialog;
305 int show_audio_device_dialog;
306 int show_video_crossbar_connection_dialog;
307 int show_audio_crossbar_connection_dialog;
308 int show_analog_tv_tuner_dialog;
309 int show_analog_tv_tuner_audio_dialog;
311 IBaseFilter *device_filter[2];
313 libAVFilter *capture_filter[2];
314 libAVPin *capture_pin[2];
317 HANDLE event[2]; /* event[0] is set by DirectShow
318 * event[1] is set by callback() */
323 int64_t curbufsize[2];
324 unsigned int video_frame_num;
326 IMediaControl *control;
327 IMediaEvent *media_event;
329 enum AVPixelFormat pixel_format;
330 enum AVCodecID video_codec_id;
334 int requested_height;
335 AVRational requested_framerate;
342 /*****************************************************************************
344 ****************************************************************************/
345 HRESULT dshow_try_setup_crossbar_options(ICaptureGraphBuilder2 *graph_builder2,
346 IBaseFilter *device_filter, enum dshowDeviceType devtype, AVFormatContext *avctx);
348 void dshow_show_filter_properties(IBaseFilter *pFilter, AVFormatContext *avctx);
350 #endif /* AVDEVICE_DSHOW_H */