blob: 664246da92aba76e68332c61250360d5070d40d0
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 | #include "dshow_capture.h" |
23 | |
24 | #include <stddef.h> |
25 | #define imemoffset offsetof(libAVPin, imemvtbl) |
26 | |
27 | DECLARE_QUERYINTERFACE(libAVPin, |
28 | { {&IID_IUnknown,0}, {&IID_IPin,0}, {&IID_IMemInputPin,imemoffset} }) |
29 | DECLARE_ADDREF(libAVPin) |
30 | DECLARE_RELEASE(libAVPin) |
31 | |
32 | long WINAPI |
33 | libAVPin_Connect(libAVPin *this, IPin *pin, const AM_MEDIA_TYPE *type) |
34 | { |
35 | dshowdebug("libAVPin_Connect(%p, %p, %p)\n", this, pin, type); |
36 | /* Input pins receive connections. */ |
37 | return S_FALSE; |
38 | } |
39 | long WINAPI |
40 | libAVPin_ReceiveConnection(libAVPin *this, IPin *pin, |
41 | const AM_MEDIA_TYPE *type) |
42 | { |
43 | enum dshowDeviceType devtype = this->filter->type; |
44 | dshowdebug("libAVPin_ReceiveConnection(%p)\n", this); |
45 | |
46 | if (!pin) |
47 | return E_POINTER; |
48 | if (this->connectedto) |
49 | return VFW_E_ALREADY_CONNECTED; |
50 | |
51 | ff_print_AM_MEDIA_TYPE(type); |
52 | if (devtype == VideoDevice) { |
53 | if (!IsEqualGUID(&type->majortype, &MEDIATYPE_Video)) |
54 | return VFW_E_TYPE_NOT_ACCEPTED; |
55 | } else { |
56 | if (!IsEqualGUID(&type->majortype, &MEDIATYPE_Audio)) |
57 | return VFW_E_TYPE_NOT_ACCEPTED; |
58 | } |
59 | |
60 | IPin_AddRef(pin); |
61 | this->connectedto = pin; |
62 | |
63 | ff_copy_dshow_media_type(&this->type, type); |
64 | |
65 | return S_OK; |
66 | } |
67 | long WINAPI |
68 | libAVPin_Disconnect(libAVPin *this) |
69 | { |
70 | dshowdebug("libAVPin_Disconnect(%p)\n", this); |
71 | |
72 | if (this->filter->state != State_Stopped) |
73 | return VFW_E_NOT_STOPPED; |
74 | if (!this->connectedto) |
75 | return S_FALSE; |
76 | IPin_Release(this->connectedto); |
77 | this->connectedto = NULL; |
78 | |
79 | return S_OK; |
80 | } |
81 | long WINAPI |
82 | libAVPin_ConnectedTo(libAVPin *this, IPin **pin) |
83 | { |
84 | dshowdebug("libAVPin_ConnectedTo(%p)\n", this); |
85 | |
86 | if (!pin) |
87 | return E_POINTER; |
88 | if (!this->connectedto) |
89 | return VFW_E_NOT_CONNECTED; |
90 | IPin_AddRef(this->connectedto); |
91 | *pin = this->connectedto; |
92 | |
93 | return S_OK; |
94 | } |
95 | long WINAPI |
96 | libAVPin_ConnectionMediaType(libAVPin *this, AM_MEDIA_TYPE *type) |
97 | { |
98 | dshowdebug("libAVPin_ConnectionMediaType(%p)\n", this); |
99 | |
100 | if (!type) |
101 | return E_POINTER; |
102 | if (!this->connectedto) |
103 | return VFW_E_NOT_CONNECTED; |
104 | |
105 | return ff_copy_dshow_media_type(type, &this->type); |
106 | } |
107 | long WINAPI |
108 | libAVPin_QueryPinInfo(libAVPin *this, PIN_INFO *info) |
109 | { |
110 | dshowdebug("libAVPin_QueryPinInfo(%p)\n", this); |
111 | |
112 | if (!info) |
113 | return E_POINTER; |
114 | |
115 | if (this->filter) |
116 | libAVFilter_AddRef(this->filter); |
117 | |
118 | info->pFilter = (IBaseFilter *) this->filter; |
119 | info->dir = PINDIR_INPUT; |
120 | wcscpy(info->achName, L"Capture"); |
121 | |
122 | return S_OK; |
123 | } |
124 | long WINAPI |
125 | libAVPin_QueryDirection(libAVPin *this, PIN_DIRECTION *dir) |
126 | { |
127 | dshowdebug("libAVPin_QueryDirection(%p)\n", this); |
128 | if (!dir) |
129 | return E_POINTER; |
130 | *dir = PINDIR_INPUT; |
131 | return S_OK; |
132 | } |
133 | long WINAPI |
134 | libAVPin_QueryId(libAVPin *this, wchar_t **id) |
135 | { |
136 | dshowdebug("libAVPin_QueryId(%p)\n", this); |
137 | |
138 | if (!id) |
139 | return E_POINTER; |
140 | |
141 | *id = wcsdup(L"libAV Pin"); |
142 | |
143 | return S_OK; |
144 | } |
145 | long WINAPI |
146 | libAVPin_QueryAccept(libAVPin *this, const AM_MEDIA_TYPE *type) |
147 | { |
148 | dshowdebug("libAVPin_QueryAccept(%p)\n", this); |
149 | return S_FALSE; |
150 | } |
151 | long WINAPI |
152 | libAVPin_EnumMediaTypes(libAVPin *this, IEnumMediaTypes **enumtypes) |
153 | { |
154 | const AM_MEDIA_TYPE *type = NULL; |
155 | libAVEnumMediaTypes *new; |
156 | dshowdebug("libAVPin_EnumMediaTypes(%p)\n", this); |
157 | |
158 | if (!enumtypes) |
159 | return E_POINTER; |
160 | new = libAVEnumMediaTypes_Create(type); |
161 | if (!new) |
162 | return E_OUTOFMEMORY; |
163 | |
164 | *enumtypes = (IEnumMediaTypes *) new; |
165 | return S_OK; |
166 | } |
167 | long WINAPI |
168 | libAVPin_QueryInternalConnections(libAVPin *this, IPin **pin, |
169 | unsigned long *npin) |
170 | { |
171 | dshowdebug("libAVPin_QueryInternalConnections(%p)\n", this); |
172 | return E_NOTIMPL; |
173 | } |
174 | long WINAPI |
175 | libAVPin_EndOfStream(libAVPin *this) |
176 | { |
177 | dshowdebug("libAVPin_EndOfStream(%p)\n", this); |
178 | /* I don't care. */ |
179 | return S_OK; |
180 | } |
181 | long WINAPI |
182 | libAVPin_BeginFlush(libAVPin *this) |
183 | { |
184 | dshowdebug("libAVPin_BeginFlush(%p)\n", this); |
185 | /* I don't care. */ |
186 | return S_OK; |
187 | } |
188 | long WINAPI |
189 | libAVPin_EndFlush(libAVPin *this) |
190 | { |
191 | dshowdebug("libAVPin_EndFlush(%p)\n", this); |
192 | /* I don't care. */ |
193 | return S_OK; |
194 | } |
195 | long WINAPI |
196 | libAVPin_NewSegment(libAVPin *this, REFERENCE_TIME start, REFERENCE_TIME stop, |
197 | double rate) |
198 | { |
199 | dshowdebug("libAVPin_NewSegment(%p)\n", this); |
200 | /* I don't care. */ |
201 | return S_OK; |
202 | } |
203 | |
204 | static int |
205 | libAVPin_Setup(libAVPin *this, libAVFilter *filter) |
206 | { |
207 | IPinVtbl *vtbl = this->vtbl; |
208 | IMemInputPinVtbl *imemvtbl; |
209 | |
210 | if (!filter) |
211 | return 0; |
212 | |
213 | imemvtbl = av_malloc(sizeof(IMemInputPinVtbl)); |
214 | if (!imemvtbl) |
215 | return 0; |
216 | |
217 | SETVTBL(imemvtbl, libAVMemInputPin, QueryInterface); |
218 | SETVTBL(imemvtbl, libAVMemInputPin, AddRef); |
219 | SETVTBL(imemvtbl, libAVMemInputPin, Release); |
220 | SETVTBL(imemvtbl, libAVMemInputPin, GetAllocator); |
221 | SETVTBL(imemvtbl, libAVMemInputPin, NotifyAllocator); |
222 | SETVTBL(imemvtbl, libAVMemInputPin, GetAllocatorRequirements); |
223 | SETVTBL(imemvtbl, libAVMemInputPin, Receive); |
224 | SETVTBL(imemvtbl, libAVMemInputPin, ReceiveMultiple); |
225 | SETVTBL(imemvtbl, libAVMemInputPin, ReceiveCanBlock); |
226 | |
227 | this->imemvtbl = imemvtbl; |
228 | |
229 | SETVTBL(vtbl, libAVPin, QueryInterface); |
230 | SETVTBL(vtbl, libAVPin, AddRef); |
231 | SETVTBL(vtbl, libAVPin, Release); |
232 | SETVTBL(vtbl, libAVPin, Connect); |
233 | SETVTBL(vtbl, libAVPin, ReceiveConnection); |
234 | SETVTBL(vtbl, libAVPin, Disconnect); |
235 | SETVTBL(vtbl, libAVPin, ConnectedTo); |
236 | SETVTBL(vtbl, libAVPin, ConnectionMediaType); |
237 | SETVTBL(vtbl, libAVPin, QueryPinInfo); |
238 | SETVTBL(vtbl, libAVPin, QueryDirection); |
239 | SETVTBL(vtbl, libAVPin, QueryId); |
240 | SETVTBL(vtbl, libAVPin, QueryAccept); |
241 | SETVTBL(vtbl, libAVPin, EnumMediaTypes); |
242 | SETVTBL(vtbl, libAVPin, QueryInternalConnections); |
243 | SETVTBL(vtbl, libAVPin, EndOfStream); |
244 | SETVTBL(vtbl, libAVPin, BeginFlush); |
245 | SETVTBL(vtbl, libAVPin, EndFlush); |
246 | SETVTBL(vtbl, libAVPin, NewSegment); |
247 | |
248 | this->filter = filter; |
249 | |
250 | return 1; |
251 | } |
252 | DECLARE_CREATE(libAVPin, libAVPin_Setup(this, filter), libAVFilter *filter) |
253 | DECLARE_DESTROY(libAVPin, nothing) |
254 | |
255 | /***************************************************************************** |
256 | * libAVMemInputPin |
257 | ****************************************************************************/ |
258 | long WINAPI |
259 | libAVMemInputPin_QueryInterface(libAVMemInputPin *this, const GUID *riid, |
260 | void **ppvObject) |
261 | { |
262 | libAVPin *pin = (libAVPin *) ((uint8_t *) this - imemoffset); |
263 | dshowdebug("libAVMemInputPin_QueryInterface(%p)\n", this); |
264 | return libAVPin_QueryInterface(pin, riid, ppvObject); |
265 | } |
266 | unsigned long WINAPI |
267 | libAVMemInputPin_AddRef(libAVMemInputPin *this) |
268 | { |
269 | libAVPin *pin = (libAVPin *) ((uint8_t *) this - imemoffset); |
270 | dshowdebug("libAVMemInputPin_AddRef(%p)\n", this); |
271 | return libAVPin_AddRef(pin); |
272 | } |
273 | unsigned long WINAPI |
274 | libAVMemInputPin_Release(libAVMemInputPin *this) |
275 | { |
276 | libAVPin *pin = (libAVPin *) ((uint8_t *) this - imemoffset); |
277 | dshowdebug("libAVMemInputPin_Release(%p)\n", this); |
278 | return libAVPin_Release(pin); |
279 | } |
280 | long WINAPI |
281 | libAVMemInputPin_GetAllocator(libAVMemInputPin *this, IMemAllocator **alloc) |
282 | { |
283 | dshowdebug("libAVMemInputPin_GetAllocator(%p)\n", this); |
284 | return VFW_E_NO_ALLOCATOR; |
285 | } |
286 | long WINAPI |
287 | libAVMemInputPin_NotifyAllocator(libAVMemInputPin *this, IMemAllocator *alloc, |
288 | BOOL rdwr) |
289 | { |
290 | dshowdebug("libAVMemInputPin_NotifyAllocator(%p)\n", this); |
291 | return S_OK; |
292 | } |
293 | long WINAPI |
294 | libAVMemInputPin_GetAllocatorRequirements(libAVMemInputPin *this, |
295 | ALLOCATOR_PROPERTIES *props) |
296 | { |
297 | dshowdebug("libAVMemInputPin_GetAllocatorRequirements(%p)\n", this); |
298 | return E_NOTIMPL; |
299 | } |
300 | long WINAPI |
301 | libAVMemInputPin_Receive(libAVMemInputPin *this, IMediaSample *sample) |
302 | { |
303 | libAVPin *pin = (libAVPin *) ((uint8_t *) this - imemoffset); |
304 | enum dshowDeviceType devtype = pin->filter->type; |
305 | void *priv_data; |
306 | AVFormatContext *s; |
307 | uint8_t *buf; |
308 | int buf_size; /* todo should be a long? */ |
309 | int index; |
310 | int64_t curtime; |
311 | int64_t orig_curtime; |
312 | int64_t graphtime; |
313 | const char *devtypename = (devtype == VideoDevice) ? "video" : "audio"; |
314 | IReferenceClock *clock = pin->filter->clock; |
315 | int64_t dummy; |
316 | struct dshow_ctx *ctx; |
317 | |
318 | |
319 | dshowdebug("libAVMemInputPin_Receive(%p)\n", this); |
320 | |
321 | if (!sample) |
322 | return E_POINTER; |
323 | |
324 | IMediaSample_GetTime(sample, &orig_curtime, &dummy); |
325 | orig_curtime += pin->filter->start_time; |
326 | IReferenceClock_GetTime(clock, &graphtime); |
327 | if (devtype == VideoDevice) { |
328 | /* PTS from video devices is unreliable. */ |
329 | IReferenceClock_GetTime(clock, &curtime); |
330 | } else { |
331 | IMediaSample_GetTime(sample, &curtime, &dummy); |
332 | if(curtime > 400000000000000000LL) { |
333 | /* initial frames sometimes start < 0 (shown as a very large number here, |
334 | like 437650244077016960 which FFmpeg doesn't like. |
335 | TODO figure out math. For now just drop them. */ |
336 | av_log(NULL, AV_LOG_DEBUG, |
337 | "dshow dropping initial (or ending) audio frame with odd PTS too high %"PRId64"\n", curtime); |
338 | return S_OK; |
339 | } |
340 | curtime += pin->filter->start_time; |
341 | } |
342 | |
343 | buf_size = IMediaSample_GetActualDataLength(sample); |
344 | IMediaSample_GetPointer(sample, &buf); |
345 | priv_data = pin->filter->priv_data; |
346 | s = priv_data; |
347 | ctx = s->priv_data; |
348 | index = pin->filter->stream_index; |
349 | |
350 | av_log(NULL, AV_LOG_VERBOSE, "dshow passing through packet of type %s size %8d " |
351 | "timestamp %"PRId64" orig timestamp %"PRId64" graph timestamp %"PRId64" diff %"PRId64" %s\n", |
352 | devtypename, buf_size, curtime, orig_curtime, graphtime, graphtime - orig_curtime, ctx->device_name[devtype]); |
353 | pin->filter->callback(priv_data, index, buf, buf_size, curtime, devtype); |
354 | |
355 | return S_OK; |
356 | } |
357 | long WINAPI |
358 | libAVMemInputPin_ReceiveMultiple(libAVMemInputPin *this, |
359 | IMediaSample **samples, long n, long *nproc) |
360 | { |
361 | int i; |
362 | dshowdebug("libAVMemInputPin_ReceiveMultiple(%p)\n", this); |
363 | |
364 | for (i = 0; i < n; i++) |
365 | libAVMemInputPin_Receive(this, samples[i]); |
366 | |
367 | *nproc = n; |
368 | return S_OK; |
369 | } |
370 | long WINAPI |
371 | libAVMemInputPin_ReceiveCanBlock(libAVMemInputPin *this) |
372 | { |
373 | dshowdebug("libAVMemInputPin_ReceiveCanBlock(%p)\n", this); |
374 | /* I swear I will not block. */ |
375 | return S_FALSE; |
376 | } |
377 | |
378 | void |
379 | libAVMemInputPin_Destroy(libAVMemInputPin *this) |
380 | { |
381 | libAVPin *pin = (libAVPin *) ((uint8_t *) this - imemoffset); |
382 | dshowdebug("libAVMemInputPin_Destroy(%p)\n", this); |
383 | libAVPin_Destroy(pin); |
384 | } |
385 |