Merge remote-tracking branch 'qatar/master'
[ffmpeg.git] / libavdevice / dshow_capture.h
1 /*
2  * DirectShow capture interface
3  * Copyright (c) 2010 Ramiro Polla
4  *
5  * This file is part of FFmpeg.
6  *
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.
11  *
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.
16  *
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
20  */
21
22 #ifndef AVDEVICE_DSHOW_H
23 #define AVDEVICE_DSHOW_H
24
25 #define DSHOWDEBUG 0
26
27 #include "avdevice.h"
28
29 #define COBJMACROS
30 #include <windows.h>
31 #define NO_DSHOW_STRSAFE
32 #include <dshow.h>
33 #include <dvdmedia.h>
34
35 /* EC_DEVICE_LOST is not defined in MinGW dshow headers. */
36 #ifndef EC_DEVICE_LOST
37 #define EC_DEVICE_LOST 0x1f
38 #endif
39
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);
45
46 #if DSHOWDEBUG
47 extern const AVClass *ff_dshow_context_class_ptr;
48 #define dshowdebug(...) av_log(&ff_dshow_context_class_ptr, AV_LOG_DEBUG, __VA_ARGS__)
49 #else
50 #define dshowdebug(...)
51 #endif
52
53 static inline void nothing(void *foo)
54 {
55 }
56
57 struct GUIDoffset {
58     const GUID *iid;
59     int offset;
60 };
61
62 enum dshowDeviceType {
63     VideoDevice = 0,
64     AudioDevice = 1,
65 };
66
67 #define DECLARE_QUERYINTERFACE(class, ...)                                   \
68 long WINAPI                                                                  \
69 class##_QueryInterface(class *this, const GUID *riid, void **ppvObject)      \
70 {                                                                            \
71     struct GUIDoffset ifaces[] = __VA_ARGS__;                                \
72     int i;                                                                   \
73     dshowdebug(AV_STRINGIFY(class)"_QueryInterface(%p, %p, %p)\n", this, riid, ppvObject); \
74     ff_printGUID(riid);                                                      \
75     if (!ppvObject)                                                          \
76         return E_POINTER;                                                    \
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;                                       \
83             return S_OK;                                                     \
84         }                                                                    \
85     }                                                                        \
86     dshowdebug("\tE_NOINTERFACE\n");                                         \
87     *ppvObject = NULL;                                                       \
88     return E_NOINTERFACE;                                                    \
89 }
90 #define DECLARE_ADDREF(class)                                                \
91 unsigned long WINAPI                                                         \
92 class##_AddRef(class *this)                                                  \
93 {                                                                            \
94     dshowdebug(AV_STRINGIFY(class)"_AddRef(%p)\t%ld\n", this, this->ref+1);  \
95     return InterlockedIncrement(&this->ref);                                 \
96 }
97 #define DECLARE_RELEASE(class)                                               \
98 unsigned long WINAPI                                                         \
99 class##_Release(class *this)                                                 \
100 {                                                                            \
101     long ref = InterlockedDecrement(&this->ref);                             \
102     dshowdebug(AV_STRINGIFY(class)"_Release(%p)\t%ld\n", this, ref);         \
103     if (!ref)                                                                \
104         class##_Destroy(this);                                               \
105     return ref;                                                              \
106 }
107
108 #define DECLARE_DESTROY(class, func)                                         \
109 void class##_Destroy(class *this)                                            \
110 {                                                                            \
111     dshowdebug(AV_STRINGIFY(class)"_Destroy(%p)\n", this);                   \
112     func(this);                                                              \
113     if (this) {                                                              \
114         if (this->vtbl)                                                      \
115             CoTaskMemFree(this->vtbl);                                       \
116         CoTaskMemFree(this);                                                 \
117     }                                                                        \
118 }
119 #define DECLARE_CREATE(class, setup, ...)                                    \
120 class *class##_Create(__VA_ARGS__)                                           \
121 {                                                                            \
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)                                                      \
126         goto fail;                                                           \
127     ZeroMemory(this, sizeof(class));                                         \
128     ZeroMemory(vtbl, sizeof(*this->vtbl));                                   \
129     this->ref  = 1;                                                          \
130     this->vtbl = vtbl;                                                       \
131     if (!setup)                                                              \
132         goto fail;                                                           \
133     dshowdebug("created "AV_STRINGIFY(class)" %p\n", this);                  \
134     return this;                                                             \
135 fail:                                                                        \
136     class##_Destroy(this);                                                   \
137     dshowdebug("could not create "AV_STRINGIFY(class)"\n");                  \
138     return NULL;                                                             \
139 }
140
141 #define SETVTBL(vtbl, class, fn) \
142     do { (vtbl)->fn = (void *) class##_##fn; } while(0)
143
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;
152
153 /*****************************************************************************
154  * libAVPin
155  ****************************************************************************/
156 struct libAVPin {
157     IPinVtbl *vtbl;
158     long ref;
159     libAVFilter *filter;
160     IPin *connectedto;
161     AM_MEDIA_TYPE type;
162     IMemInputPinVtbl *imemvtbl;
163 };
164
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);
183
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 *);
193
194 void                 libAVPin_Destroy(libAVPin *);
195 libAVPin            *libAVPin_Create (libAVFilter *filter);
196
197 void                 libAVMemInputPin_Destroy(libAVMemInputPin *);
198
199 /*****************************************************************************
200  * libAVEnumPins
201  ****************************************************************************/
202 struct libAVEnumPins {
203     IEnumPinsVtbl *vtbl;
204     long ref;
205     int pos;
206     libAVPin *pin;
207     libAVFilter *filter;
208 };
209
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 **);
217
218 void                 libAVEnumPins_Destroy(libAVEnumPins *);
219 libAVEnumPins       *libAVEnumPins_Create (libAVPin *pin, libAVFilter *filter);
220
221 /*****************************************************************************
222  * libAVEnumMediaTypes
223  ****************************************************************************/
224 struct libAVEnumMediaTypes {
225     IEnumPinsVtbl *vtbl;
226     long ref;
227     int pos;
228     AM_MEDIA_TYPE type;
229 };
230
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 **);
238
239 void                 libAVEnumMediaTypes_Destroy(libAVEnumMediaTypes *);
240 libAVEnumMediaTypes *libAVEnumMediaTypes_Create(const AM_MEDIA_TYPE *type);
241
242 /*****************************************************************************
243  * libAVFilter
244  ****************************************************************************/
245 struct libAVFilter {
246     IBaseFilterVtbl *vtbl;
247     long ref;
248     const wchar_t *name;
249     libAVPin *pin;
250     FILTER_INFO info;
251     FILTER_STATE state;
252     IReferenceClock *clock;
253     enum dshowDeviceType type;
254     void *priv_data;
255     int stream_index;
256     int64_t start_time;
257     void (*callback)(void *priv_data, int index, uint8_t *buf, int buf_size, int64_t time);
258 };
259
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 **);
275
276 void                 libAVFilter_Destroy(libAVFilter *);
277 libAVFilter         *libAVFilter_Create (void *, void *, enum dshowDeviceType);
278
279 #endif /* AVDEVICE_DSHOW_H */