1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
|
/*
* DirectShow capture interface
* Copyright (c) 2010 Ramiro Polla
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#define DSHOWDEBUG 0
#include "libavformat/avformat.h"
#define COBJMACROS
#include <windows.h>
#include <dshow.h>
#include <dvdmedia.h>
long ff_copy_dshow_media_type(AM_MEDIA_TYPE *dst, const AM_MEDIA_TYPE *src);
void ff_print_AM_MEDIA_TYPE(const AM_MEDIA_TYPE *type);
void ff_printGUID(const GUID *g);
#if DSHOWDEBUG
extern const AVClass *ff_dshow_context_class_ptr;
#define dshowdebug(...) av_log(&ff_dshow_context_class_ptr, AV_LOG_DEBUG, __VA_ARGS__)
#else
#define dshowdebug(...)
#endif
static inline void nothing(void *foo)
{
}
struct GUIDoffset {
const GUID *iid;
int offset;
};
enum dshowDeviceType {
VideoDevice = 0,
AudioDevice = 1,
};
#define DECLARE_QUERYINTERFACE(class, ...) \
long WINAPI \
class##_QueryInterface(class *this, const GUID *riid, void **ppvObject) \
{ \
struct GUIDoffset ifaces[] = __VA_ARGS__; \
int i; \
dshowdebug(AV_STRINGIFY(class)"_QueryInterface(%p, %p, %p)\n", this, riid, ppvObject); \
ff_printGUID(riid); \
if (!ppvObject) \
return E_POINTER; \
for (i = 0; i < sizeof(ifaces)/sizeof(ifaces[0]); i++) { \
if (IsEqualGUID(riid, ifaces[i].iid)) { \
void *obj = (void *) ((uint8_t *) this + ifaces[i].offset); \
class##_AddRef(this); \
dshowdebug("\tfound %d with offset %d\n", i, ifaces[i].offset); \
*ppvObject = (void *) obj; \
return S_OK; \
} \
} \
dshowdebug("\tE_NOINTERFACE\n"); \
*ppvObject = NULL; \
return E_NOINTERFACE; \
}
#define DECLARE_ADDREF(class) \
unsigned long WINAPI \
class##_AddRef(class *this) \
{ \
dshowdebug(AV_STRINGIFY(class)"_AddRef(%p)\t%ld\n", this, this->ref+1); \
return InterlockedIncrement(&this->ref); \
}
#define DECLARE_RELEASE(class) \
unsigned long WINAPI \
class##_Release(class *this) \
{ \
long ref = InterlockedDecrement(&this->ref); \
dshowdebug(AV_STRINGIFY(class)"_Release(%p)\t%ld\n", this, ref); \
if (!ref) \
class##_Destroy(this); \
return ref; \
}
#define DECLARE_DESTROY(class, func) \
void class##_Destroy(class *this) \
{ \
dshowdebug(AV_STRINGIFY(class)"_Destroy(%p)\n", this); \
func(this); \
if (this) { \
if (this->vtbl) \
CoTaskMemFree(this->vtbl); \
CoTaskMemFree(this); \
} \
}
#define DECLARE_CREATE(class, setup, ...) \
class *class##_Create(__VA_ARGS__) \
{ \
class *this = CoTaskMemAlloc(sizeof(class)); \
void *vtbl = CoTaskMemAlloc(sizeof(*this->vtbl)); \
dshowdebug(AV_STRINGIFY(class)"_Create(%p)\n", this); \
if (!this || !vtbl) \
goto fail; \
ZeroMemory(this, sizeof(class)); \
ZeroMemory(vtbl, sizeof(*this->vtbl)); \
this->ref = 1; \
this->vtbl = vtbl; \
if (!setup) \
goto fail; \
dshowdebug("created "AV_STRINGIFY(class)" %p\n", this); \
return this; \
fail: \
class##_Destroy(this); \
dshowdebug("could not create "AV_STRINGIFY(class)"\n"); \
return NULL; \
}
#define SETVTBL(vtbl, class, fn) \
do { (vtbl)->fn = (void *) class##_##fn; } while(0)
/*****************************************************************************
* Forward Declarations
****************************************************************************/
typedef struct libAVPin libAVPin;
typedef struct libAVMemInputPin libAVMemInputPin;
typedef struct libAVEnumPins libAVEnumPins;
typedef struct libAVEnumMediaTypes libAVEnumMediaTypes;
typedef struct libAVFilter libAVFilter;
/*****************************************************************************
* libAVPin
****************************************************************************/
struct libAVPin {
IPinVtbl *vtbl;
long ref;
libAVFilter *filter;
IPin *connectedto;
AM_MEDIA_TYPE type;
IMemInputPinVtbl *imemvtbl;
};
long WINAPI libAVPin_QueryInterface (libAVPin *, const GUID *, void **);
unsigned long WINAPI libAVPin_AddRef (libAVPin *);
unsigned long WINAPI libAVPin_Release (libAVPin *);
long WINAPI libAVPin_Connect (libAVPin *, IPin *, const AM_MEDIA_TYPE *);
long WINAPI libAVPin_ReceiveConnection (libAVPin *, IPin *, const AM_MEDIA_TYPE *);
long WINAPI libAVPin_Disconnect (libAVPin *);
long WINAPI libAVPin_ConnectedTo (libAVPin *, IPin **);
long WINAPI libAVPin_ConnectionMediaType (libAVPin *, AM_MEDIA_TYPE *);
long WINAPI libAVPin_QueryPinInfo (libAVPin *, PIN_INFO *);
long WINAPI libAVPin_QueryDirection (libAVPin *, PIN_DIRECTION *);
long WINAPI libAVPin_QueryId (libAVPin *, wchar_t **);
long WINAPI libAVPin_QueryAccept (libAVPin *, const AM_MEDIA_TYPE *);
long WINAPI libAVPin_EnumMediaTypes (libAVPin *, IEnumMediaTypes **);
long WINAPI libAVPin_QueryInternalConnections(libAVPin *, IPin **, unsigned long *);
long WINAPI libAVPin_EndOfStream (libAVPin *);
long WINAPI libAVPin_BeginFlush (libAVPin *);
long WINAPI libAVPin_EndFlush (libAVPin *);
long WINAPI libAVPin_NewSegment (libAVPin *, REFERENCE_TIME, REFERENCE_TIME, double);
long WINAPI libAVMemInputPin_QueryInterface (libAVMemInputPin *, const GUID *, void **);
unsigned long WINAPI libAVMemInputPin_AddRef (libAVMemInputPin *);
unsigned long WINAPI libAVMemInputPin_Release (libAVMemInputPin *);
long WINAPI libAVMemInputPin_GetAllocator (libAVMemInputPin *, IMemAllocator **);
long WINAPI libAVMemInputPin_NotifyAllocator (libAVMemInputPin *, IMemAllocator *, WINBOOL);
long WINAPI libAVMemInputPin_GetAllocatorRequirements(libAVMemInputPin *, ALLOCATOR_PROPERTIES *);
long WINAPI libAVMemInputPin_Receive (libAVMemInputPin *, IMediaSample *);
long WINAPI libAVMemInputPin_ReceiveMultiple (libAVMemInputPin *, IMediaSample **, long, long *);
long WINAPI libAVMemInputPin_ReceiveCanBlock (libAVMemInputPin *);
void libAVPin_Destroy(libAVPin *);
libAVPin *libAVPin_Create (libAVFilter *filter);
void libAVMemInputPin_Destroy(libAVMemInputPin *);
/*****************************************************************************
* libAVEnumPins
****************************************************************************/
struct libAVEnumPins {
IEnumPinsVtbl *vtbl;
long ref;
int pos;
libAVPin *pin;
libAVFilter *filter;
};
long WINAPI libAVEnumPins_QueryInterface(libAVEnumPins *, const GUID *, void **);
unsigned long WINAPI libAVEnumPins_AddRef (libAVEnumPins *);
unsigned long WINAPI libAVEnumPins_Release (libAVEnumPins *);
long WINAPI libAVEnumPins_Next (libAVEnumPins *, unsigned long, IPin **, unsigned long *);
long WINAPI libAVEnumPins_Skip (libAVEnumPins *, unsigned long);
long WINAPI libAVEnumPins_Reset (libAVEnumPins *);
long WINAPI libAVEnumPins_Clone (libAVEnumPins *, libAVEnumPins **);
void libAVEnumPins_Destroy(libAVEnumPins *);
libAVEnumPins *libAVEnumPins_Create (libAVPin *pin, libAVFilter *filter);
/*****************************************************************************
* libAVEnumMediaTypes
****************************************************************************/
struct libAVEnumMediaTypes {
IEnumPinsVtbl *vtbl;
long ref;
int pos;
AM_MEDIA_TYPE type;
};
long WINAPI libAVEnumMediaTypes_QueryInterface(libAVEnumMediaTypes *, const GUID *, void **);
unsigned long WINAPI libAVEnumMediaTypes_AddRef (libAVEnumMediaTypes *);
unsigned long WINAPI libAVEnumMediaTypes_Release (libAVEnumMediaTypes *);
long WINAPI libAVEnumMediaTypes_Next (libAVEnumMediaTypes *, unsigned long, AM_MEDIA_TYPE **, unsigned long *);
long WINAPI libAVEnumMediaTypes_Skip (libAVEnumMediaTypes *, unsigned long);
long WINAPI libAVEnumMediaTypes_Reset (libAVEnumMediaTypes *);
long WINAPI libAVEnumMediaTypes_Clone (libAVEnumMediaTypes *, libAVEnumMediaTypes **);
void libAVEnumMediaTypes_Destroy(libAVEnumMediaTypes *);
libAVEnumMediaTypes *libAVEnumMediaTypes_Create(const AM_MEDIA_TYPE *type);
/*****************************************************************************
* libAVFilter
****************************************************************************/
struct libAVFilter {
IBaseFilterVtbl *vtbl;
long ref;
const wchar_t *name;
libAVPin *pin;
FILTER_INFO info;
FILTER_STATE state;
IReferenceClock *clock;
enum dshowDeviceType type;
void *priv_data;
int stream_index;
int64_t start_time;
void (*callback)(void *priv_data, int index, uint8_t *buf, int buf_size, int64_t time);
};
long WINAPI libAVFilter_QueryInterface (libAVFilter *, const GUID *, void **);
unsigned long WINAPI libAVFilter_AddRef (libAVFilter *);
unsigned long WINAPI libAVFilter_Release (libAVFilter *);
long WINAPI libAVFilter_GetClassID (libAVFilter *, CLSID *);
long WINAPI libAVFilter_Stop (libAVFilter *);
long WINAPI libAVFilter_Pause (libAVFilter *);
long WINAPI libAVFilter_Run (libAVFilter *, REFERENCE_TIME);
long WINAPI libAVFilter_GetState (libAVFilter *, DWORD, FILTER_STATE *);
long WINAPI libAVFilter_SetSyncSource (libAVFilter *, IReferenceClock *);
long WINAPI libAVFilter_GetSyncSource (libAVFilter *, IReferenceClock **);
long WINAPI libAVFilter_EnumPins (libAVFilter *, IEnumPins **);
long WINAPI libAVFilter_FindPin (libAVFilter *, const wchar_t *, IPin **);
long WINAPI libAVFilter_QueryFilterInfo(libAVFilter *, FILTER_INFO *);
long WINAPI libAVFilter_JoinFilterGraph(libAVFilter *, IFilterGraph *, const wchar_t *);
long WINAPI libAVFilter_QueryVendorInfo(libAVFilter *, wchar_t **);
void libAVFilter_Destroy(libAVFilter *);
libAVFilter *libAVFilter_Create (void *, void *, enum dshowDeviceType);
|
