ReactOS  0.4.14-dev-358-gbef841c
acmwrapper.c
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1 /*
2  * ACM Wrapper
3  *
4  * Copyright 2005 Christian Costa
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19  */
20 
21 #include "config.h"
22 
23 #include "quartz_private.h"
24 #include "pin.h"
25 
26 #include "uuids.h"
27 #include "mmreg.h"
28 #include "windef.h"
29 #include "winbase.h"
30 #include "dshow.h"
31 #include "strmif.h"
32 #include "vfwmsgs.h"
33 #include "msacm.h"
34 
35 #include <assert.h>
36 
37 #include "wine/unicode.h"
38 #include "wine/debug.h"
39 
41 
42 typedef struct ACMWrapperImpl
43 {
45 
46  HACMSTREAM has;
49 
53 
54 static const IBaseFilterVtbl ACMWrapper_Vtbl;
55 
57 {
58  return CONTAINING_RECORD(iface, ACMWrapperImpl, tf);
59 }
60 
62 {
64  AM_MEDIA_TYPE amt;
65  IMediaSample* pOutSample = NULL;
66  DWORD cbDstStream, cbSrcStream;
67  LPBYTE pbDstStream;
68  LPBYTE pbSrcStream = NULL;
69  ACMSTREAMHEADER ash;
70  BOOL unprepare_header = FALSE, preroll;
71  MMRESULT res;
72  HRESULT hr;
73  LONGLONG tStart = -1, tStop = -1, tMed;
74  LONGLONG mtStart = -1, mtStop = -1, mtMed;
75 
76  EnterCriticalSection(&This->tf.csReceive);
77  hr = IMediaSample_GetPointer(pSample, &pbSrcStream);
78  if (FAILED(hr))
79  {
80  ERR("Cannot get pointer to sample data (%x)\n", hr);
81  LeaveCriticalSection(&This->tf.csReceive);
82  return hr;
83  }
84 
85  preroll = (IMediaSample_IsPreroll(pSample) == S_OK);
86 
87  IMediaSample_GetTime(pSample, &tStart, &tStop);
88  if (IMediaSample_GetMediaTime(pSample, &mtStart, &mtStop) != S_OK)
89  mtStart = mtStop = -1;
90  cbSrcStream = IMediaSample_GetActualDataLength(pSample);
91 
92  /* Prevent discontinuities when codecs 'absorb' data but not give anything back in return */
93  if (IMediaSample_IsDiscontinuity(pSample) == S_OK)
94  {
95  This->lasttime_real = tStart;
96  This->lasttime_sent = tStart;
97  }
98  else if (This->lasttime_real == tStart)
99  tStart = This->lasttime_sent;
100  else
101  WARN("Discontinuity\n");
102 
103  tMed = tStart;
104  mtMed = mtStart;
105 
106  TRACE("Sample data ptr = %p, size = %d\n", pbSrcStream, cbSrcStream);
107 
108  hr = IPin_ConnectionMediaType(This->tf.ppPins[0], &amt);
109  if (FAILED(hr))
110  {
111  ERR("Unable to retrieve media type\n");
112  LeaveCriticalSection(&This->tf.csReceive);
113  return hr;
114  }
115 
116  ash.pbSrc = pbSrcStream;
117  ash.cbSrcLength = cbSrcStream;
118 
119  while(hr == S_OK && ash.cbSrcLength)
120  {
121  hr = BaseOutputPinImpl_GetDeliveryBuffer((BaseOutputPin*)This->tf.ppPins[1], &pOutSample, NULL, NULL, 0);
122  if (FAILED(hr))
123  {
124  ERR("Unable to get delivery buffer (%x)\n", hr);
125  LeaveCriticalSection(&This->tf.csReceive);
126  return hr;
127  }
128  IMediaSample_SetPreroll(pOutSample, preroll);
129 
130  hr = IMediaSample_SetActualDataLength(pOutSample, 0);
131  assert(hr == S_OK);
132 
133  hr = IMediaSample_GetPointer(pOutSample, &pbDstStream);
134  if (FAILED(hr)) {
135  ERR("Unable to get pointer to buffer (%x)\n", hr);
136  goto error;
137  }
138  cbDstStream = IMediaSample_GetSize(pOutSample);
139 
140  ash.cbStruct = sizeof(ash);
141  ash.fdwStatus = 0;
142  ash.dwUser = 0;
143  ash.pbDst = pbDstStream;
144  ash.cbDstLength = cbDstStream;
145 
146  if ((res = acmStreamPrepareHeader(This->has, &ash, 0))) {
147  ERR("Cannot prepare header %d\n", res);
148  goto error;
149  }
150  unprepare_header = TRUE;
151 
152  if (IMediaSample_IsDiscontinuity(pSample) == S_OK)
153  {
155  IMediaSample_SetDiscontinuity(pOutSample, TRUE);
156  /* One sample could be converted to multiple packets */
157  IMediaSample_SetDiscontinuity(pSample, FALSE);
158  }
159  else
160  {
161  res = acmStreamConvert(This->has, &ash, 0);
162  IMediaSample_SetDiscontinuity(pOutSample, FALSE);
163  }
164 
165  if (res)
166  {
167  if(res != MMSYSERR_MOREDATA)
168  ERR("Cannot convert data header %d\n", res);
169  goto error;
170  }
171 
172  TRACE("used in %u/%u, used out %u/%u\n", ash.cbSrcLengthUsed, ash.cbSrcLength, ash.cbDstLengthUsed, ash.cbDstLength);
173 
174  hr = IMediaSample_SetActualDataLength(pOutSample, ash.cbDstLengthUsed);
175  assert(hr == S_OK);
176 
177  /* Bug in acm codecs? It apparently uses the input, but doesn't necessarily output immediately */
178  if (!ash.cbSrcLengthUsed)
179  {
180  WARN("Sample was skipped? Outputted: %u\n", ash.cbDstLengthUsed);
181  ash.cbSrcLength = 0;
182  goto error;
183  }
184 
185  TRACE("Sample start time: %u.%03u\n", (DWORD)(tStart/10000000), (DWORD)((tStart/10000)%1000));
186  if (ash.cbSrcLengthUsed == cbSrcStream)
187  {
188  IMediaSample_SetTime(pOutSample, &tStart, &tStop);
189  tStart = tMed = tStop;
190  }
191  else if (tStop != tStart)
192  {
193  tMed = tStop - tStart;
194  tMed = tStart + tMed * ash.cbSrcLengthUsed / cbSrcStream;
195  IMediaSample_SetTime(pOutSample, &tStart, &tMed);
196  tStart = tMed;
197  }
198  else
199  {
200  ERR("No valid timestamp found\n");
201  IMediaSample_SetTime(pOutSample, NULL, NULL);
202  }
203 
204  if (mtStart < 0) {
205  IMediaSample_SetMediaTime(pOutSample, NULL, NULL);
206  } else if (ash.cbSrcLengthUsed == cbSrcStream) {
207  IMediaSample_SetMediaTime(pOutSample, &mtStart, &mtStop);
208  mtStart = mtMed = mtStop;
209  } else if (mtStop >= mtStart) {
210  mtMed = mtStop - mtStart;
211  mtMed = mtStart + mtMed * ash.cbSrcLengthUsed / cbSrcStream;
212  IMediaSample_SetMediaTime(pOutSample, &mtStart, &mtMed);
213  mtStart = mtMed;
214  } else {
215  IMediaSample_SetMediaTime(pOutSample, NULL, NULL);
216  }
217 
218  TRACE("Sample stop time: %u.%03u\n", (DWORD)(tStart/10000000), (DWORD)((tStart/10000)%1000));
219 
220  LeaveCriticalSection(&This->tf.csReceive);
221  hr = BaseOutputPinImpl_Deliver((BaseOutputPin*)This->tf.ppPins[1], pOutSample);
222  EnterCriticalSection(&This->tf.csReceive);
223 
224  if (hr != S_OK && hr != VFW_E_NOT_CONNECTED) {
225  if (FAILED(hr))
226  ERR("Error sending sample (%x)\n", hr);
227  goto error;
228  }
229 
230 error:
231  if (unprepare_header && (res = acmStreamUnprepareHeader(This->has, &ash, 0)))
232  ERR("Cannot unprepare header %d\n", res);
233  unprepare_header = FALSE;
234  ash.pbSrc += ash.cbSrcLengthUsed;
235  ash.cbSrcLength -= ash.cbSrcLengthUsed;
236 
237  IMediaSample_Release(pOutSample);
238  pOutSample = NULL;
239 
240  }
241 
242  This->lasttime_real = tStop;
243  This->lasttime_sent = tMed;
244 
245  LeaveCriticalSection(&This->tf.csReceive);
246  return hr;
247 }
248 
250 {
252  MMRESULT res;
253 
254  TRACE("(%p)->(%i %p)\n", This, dir, pmt);
255 
256  if (dir != PINDIR_INPUT)
257  return S_OK;
258 
259  /* Check root (GUID w/o FOURCC) */
260  if ((IsEqualIID(&pmt->majortype, &MEDIATYPE_Audio)) &&
261  (!memcmp(((const char *)&pmt->subtype)+4, ((const char *)&MEDIATYPE_Audio)+4, sizeof(GUID)-4)) &&
262  (IsEqualIID(&pmt->formattype, &FORMAT_WaveFormatEx)))
263  {
264  HACMSTREAM drv;
265  WAVEFORMATEX *wfx = (WAVEFORMATEX*)pmt->pbFormat;
266  AM_MEDIA_TYPE* outpmt = &This->tf.pmt;
267 
268  if (!wfx || wfx->wFormatTag == WAVE_FORMAT_PCM || wfx->wFormatTag == WAVE_FORMAT_EXTENSIBLE)
270  FreeMediaType(outpmt);
271 
272  This->pWfIn = (LPWAVEFORMATEX)pmt->pbFormat;
273 
274  /* HACK */
275  /* TRACE("ALIGN = %d\n", pACMWrapper->pWfIn->nBlockAlign); */
276  /* pACMWrapper->pWfIn->nBlockAlign = 1; */
277 
278  /* Set output audio data to PCM */
279  CopyMediaType(outpmt, pmt);
280  outpmt->subtype.Data1 = WAVE_FORMAT_PCM;
281  This->pWfOut = (WAVEFORMATEX*)outpmt->pbFormat;
282  This->pWfOut->wFormatTag = WAVE_FORMAT_PCM;
283  This->pWfOut->wBitsPerSample = 16;
284  This->pWfOut->nBlockAlign = This->pWfOut->wBitsPerSample * This->pWfOut->nChannels / 8;
285  This->pWfOut->cbSize = 0;
286  This->pWfOut->nAvgBytesPerSec = This->pWfOut->nChannels * This->pWfOut->nSamplesPerSec
287  * (This->pWfOut->wBitsPerSample/8);
288 
289  if (!(res = acmStreamOpen(&drv, NULL, This->pWfIn, This->pWfOut, NULL, 0, 0, 0)))
290  {
291  This->has = drv;
292 
293  TRACE("Connection accepted\n");
294  return S_OK;
295  }
296  else
297  FIXME("acmStreamOpen returned %d\n", res);
298  FreeMediaType(outpmt);
299  TRACE("Unable to find a suitable ACM decompressor\n");
300  }
301 
302  TRACE("Connection refused\n");
304 }
305 
307 {
309  MMRESULT res;
310  HACMSTREAM drv;
311 
312  TRACE("(%p)\n", This);
313 
314  if (dir != PINDIR_INPUT)
315  return S_OK;
316 
317  if (!(res = acmStreamOpen(&drv, NULL, This->pWfIn, This->pWfOut, NULL, 0, 0, 0)))
318  {
319  This->has = drv;
320 
321  TRACE("Connection accepted\n");
322  return S_OK;
323  }
324 
325  FIXME("acmStreamOpen returned %d\n", res);
326  TRACE("Unable to find a suitable ACM decompressor\n");
328 }
329 
331 {
333 
334  TRACE("(%p)->(%i)\n", This,dir);
335 
336  if (dir == PINDIR_INPUT)
337  {
338  if (This->has)
339  acmStreamClose(This->has, 0);
340 
341  This->has = 0;
342  This->lasttime_real = This->lasttime_sent = -1;
343  }
344 
345  return S_OK;
346 }
347 
349 {
351  ALLOCATOR_PROPERTIES actual;
352 
353  if (!ppropInputRequest->cbAlign)
354  ppropInputRequest->cbAlign = 1;
355 
356  if (ppropInputRequest->cbBuffer < pACM->pWfOut->nAvgBytesPerSec / 2)
357  ppropInputRequest->cbBuffer = pACM->pWfOut->nAvgBytesPerSec / 2;
358 
359  if (!ppropInputRequest->cBuffers)
360  ppropInputRequest->cBuffers = 1;
361 
362  return IMemAllocator_SetProperties(pAlloc, ppropInputRequest, &actual);
363 }
364 
367  NULL,
369  NULL,
370  NULL,
374  NULL,
375  NULL,
376  NULL,
377  NULL
378 };
379 
381 {
382  HRESULT hr;
384 
385  TRACE("(%p, %p)\n", pUnkOuter, ppv);
386 
387  *ppv = NULL;
388 
389  if (pUnkOuter)
390  return CLASS_E_NOAGGREGATION;
391 
393 
394  if (FAILED(hr))
395  return hr;
396 
397  *ppv = &This->tf.filter.IBaseFilter_iface;
398  This->lasttime_real = This->lasttime_sent = -1;
399 
400  return hr;
401 }
402 
403 static const IBaseFilterVtbl ACMWrapper_Vtbl =
404 {
420 };
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