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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
  40 #include "transform.h"
  41
  42 WINE_DEFAULT_DEBUG_CHANNEL(quartz);
  43
  44 typedef struct ACMWrapperImpl
  45 {
  46     TransformFilterImpl tf;
  47     HACMSTREAM has;
  48     LPWAVEFORMATEX pWfIn;
  49     LPWAVEFORMATEX pWfOut;
  50
  51     LONGLONG lasttime_real;
  52     LONGLONG lasttime_sent;
  53 } ACMWrapperImpl;
  54
  55 static HRESULT ACMWrapper_ProcessSampleData(TransformFilterImpl* pTransformFilter, IMediaSample *pSample)
  56 {
  57     ACMWrapperImpl* This = (ACMWrapperImpl*)pTransformFilter;
  58     AM_MEDIA_TYPE amt;
  59     IMediaSample* pOutSample = NULL;
  60     DWORD cbDstStream, cbSrcStream;
  61     LPBYTE pbDstStream;
  62     LPBYTE pbSrcStream = NULL;
  63     ACMSTREAMHEADER ash;
  64     BOOL unprepare_header = FALSE, preroll;
  65     MMRESULT res;
  66     HRESULT hr;
  67     LONGLONG tStart = -1, tStop = -1, tMed;
  68     InputPin *pin = (InputPin *)pTransformFilter->ppPins[0];
  69
  70     EnterCriticalSection(&pTransformFilter->csFilter);
  71     if (pTransformFilter->state == State_Stopped)
  72     {
  73         LeaveCriticalSection(&pTransformFilter->csFilter);
  74         return VFW_E_WRONG_STATE;
  75     }
  76
  77     if (pin->end_of_stream || pin->flushing)
  78     {
  79         LeaveCriticalSection(&pTransformFilter->csFilter);
  80         return S_FALSE;
  81     }
  82
  83     hr = IMediaSample_GetPointer(pSample, &pbSrcStream);
  84     if (FAILED(hr))
  85     {
  86         ERR("Cannot get pointer to sample data (%x)\n", hr);
  87         LeaveCriticalSection(&pTransformFilter->csFilter);
  88         return hr;
  89     }
  90
  91     preroll = (IMediaSample_IsPreroll(pSample) == S_OK);
  92
  93     IMediaSample_GetTime(pSample, &tStart, &tStop);
  94     cbSrcStream = IMediaSample_GetActualDataLength(pSample);
  95
  96     /* Prevent discontinuities when codecs 'absorb' data but not give anything back in return */
  97     if (IMediaSample_IsDiscontinuity(pSample) == S_OK)
  98     {
  99         This->lasttime_real = tStart;
 100         This->lasttime_sent = tStart;
 101     }
 102     else if (This->lasttime_real == tStart)
 103         tStart = This->lasttime_sent;
 104     else
 105         WARN("Discontinuity\n");
 106
 107     tMed = tStart;
 108
 109     TRACE("Sample data ptr = %p, size = %ld\n", pbSrcStream, (long)cbSrcStream);
 110
 111     hr = IPin_ConnectionMediaType(This->tf.ppPins[0], &amt);
 112     if (FAILED(hr))
 113     {
 114         ERR("Unable to retrieve media type\n");
 115         LeaveCriticalSection(&pTransformFilter->csFilter);
 116         return hr;
 117     }
 118
 119     ash.pbSrc = pbSrcStream;
 120     ash.cbSrcLength = cbSrcStream;
 121
 122     while(hr == S_OK && ash.cbSrcLength)
 123     {
 124         hr = OutputPin_GetDeliveryBuffer((OutputPin*)This->tf.ppPins[1], &pOutSample, NULL, NULL, 0);
 125         if (FAILED(hr))
 126         {
 127             ERR("Unable to get delivery buffer (%x)\n", hr);
 128             LeaveCriticalSection(&pTransformFilter->csFilter);
 129             return hr;
 130         }
 131         IMediaSample_SetPreroll(pOutSample, preroll);
 132
 133         hr = IMediaSample_SetActualDataLength(pOutSample, 0);
 134         assert(hr == S_OK);
 135
 136         hr = IMediaSample_GetPointer(pOutSample, &pbDstStream);
 137         if (FAILED(hr)) {
 138             ERR("Unable to get pointer to buffer (%x)\n", hr);
 139             goto error;
 140         }
 141         cbDstStream = IMediaSample_GetSize(pOutSample);
 142
 143         ash.cbStruct = sizeof(ash);
 144         ash.fdwStatus = 0;
 145         ash.dwUser = 0;
 146         ash.pbDst = pbDstStream;
 147         ash.cbDstLength = cbDstStream;
 148
 149         if ((res = acmStreamPrepareHeader(This->has, &ash, 0))) {
 150             ERR("Cannot prepare header %d\n", res);
 151             goto error;
 152         }
 153         unprepare_header = TRUE;
 154
 155         if (IMediaSample_IsDiscontinuity(pSample) == S_OK)
 156         {
 157             res = acmStreamConvert(This->has, &ash, ACM_STREAMCONVERTF_START);
 158             IMediaSample_SetDiscontinuity(pOutSample, TRUE);
 159             /* One sample could be converted to multiple packets */
 160             IMediaSample_SetDiscontinuity(pSample, FALSE);
 161         }
 162         else
 163         {
 164             res = acmStreamConvert(This->has, &ash, 0);
 165             IMediaSample_SetDiscontinuity(pOutSample, FALSE);
 166         }
 167
 168         if (res)
 169         {
 170             if(res != MMSYSERR_MOREDATA)
 171                 ERR("Cannot convert data header %d\n", res);
 172             goto error;
 173         }
 174
 175         TRACE("used in %u/%u, used out %u/%u\n", ash.cbSrcLengthUsed, ash.cbSrcLength, ash.cbDstLengthUsed, ash.cbDstLength);
 176
 177         hr = IMediaSample_SetActualDataLength(pOutSample, ash.cbDstLengthUsed);
 178         assert(hr == S_OK);
 179
 180         /* Bug in acm codecs? It apparantly uses the input, but doesn't necessarily output immediately kl*/
 181         if (!ash.cbSrcLengthUsed)
 182         {
 183             WARN("Sample was skipped? Outputted: %u\n", ash.cbDstLengthUsed);
 184             ash.cbSrcLength = 0;
 185             goto error;
 186         }
 187
 188         TRACE("Sample start time: %u.%03u\n", (DWORD)(tStart/10000000), (DWORD)((tStart/10000)%1000));
 189         if (ash.cbSrcLengthUsed == cbSrcStream)
 190         {
 191             IMediaSample_SetTime(pOutSample, &tStart, &tStop);
 192             tStart = tMed = tStop;
 193         }
 194         else if (tStop != tStart)
 195         {
 196             tMed = tStop - tStart;
 197             tMed = tStart + tMed * ash.cbSrcLengthUsed / cbSrcStream;
 198             IMediaSample_SetTime(pOutSample, &tStart, &tMed);
 199             tStart = tMed;
 200         }
 201         else
 202         {
 203             ERR("No valid timestamp found\n");
 204             IMediaSample_SetTime(pOutSample, NULL, NULL);
 205         }
 206         TRACE("Sample stop time: %u.%03u\n", (DWORD)(tStart/10000000), (DWORD)((tStart/10000)%1000));
 207
 208         LeaveCriticalSection(&This->tf.csFilter);
 209         hr = OutputPin_SendSample((OutputPin*)This->tf.ppPins[1], pOutSample);
 210         EnterCriticalSection(&This->tf.csFilter);
 211
 212         if (hr != S_OK && hr != VFW_E_NOT_CONNECTED) {
 213             if (FAILED(hr))
 214                 ERR("Error sending sample (%x)\n", hr);
 215             goto error;
 216         }
 217
 218 error:
 219         if (unprepare_header && (res = acmStreamUnprepareHeader(This->has, &ash, 0)))
 220             ERR("Cannot unprepare header %d\n", res);
 221         unprepare_header = FALSE;
 222         ash.pbSrc += ash.cbSrcLengthUsed;
 223         ash.cbSrcLength -= ash.cbSrcLengthUsed;
 224
 225         if (pOutSample)
 226             IMediaSample_Release(pOutSample);
 227         pOutSample = NULL;
 228
 229     }
 230
 231     This->lasttime_real = tStop;
 232     This->lasttime_sent = tMed;
 233
 234     LeaveCriticalSection(&pTransformFilter->csFilter);
 235     return hr;
 236 }
 237
 238 static HRESULT ACMWrapper_ConnectInput(TransformFilterImpl* pTransformFilter, const AM_MEDIA_TYPE * pmt)
 239 {
 240     ACMWrapperImpl* This = (ACMWrapperImpl*)pTransformFilter;
 241     MMRESULT res;
 242
 243     TRACE("(%p)->(%p)\n", This, pmt);
 244
 245     /* Check root (GUID w/o FOURCC) */
 246     if ((IsEqualIID(&pmt->majortype, &MEDIATYPE_Audio)) &&
 247         (!memcmp(((const char *)&pmt->subtype)+4, ((const char *)&MEDIATYPE_Audio)+4, sizeof(GUID)-4)) &&
 248         (IsEqualIID(&pmt->formattype, &FORMAT_WaveFormatEx)))
 249     {
 250         HACMSTREAM drv;
 251         AM_MEDIA_TYPE* outpmt = &((OutputPin*)This->tf.ppPins[1])->pin.mtCurrent;
 252         This->pWfIn = (LPWAVEFORMATEX)pmt->pbFormat;
 253
 254         /* HACK */
 255         /* TRACE("ALIGN = %d\n", pACMWrapper->pWfIn->nBlockAlign); */
 256         /* pACMWrapper->pWfIn->nBlockAlign = 1; */
 257
 258         /* Set output audio data to PCM */
 259         CopyMediaType(outpmt, pmt);
 260         outpmt->subtype.Data1 = WAVE_FORMAT_PCM;
 261         This->pWfOut = (WAVEFORMATEX*)outpmt->pbFormat;
 262         This->pWfOut->wFormatTag = WAVE_FORMAT_PCM;
 263         This->pWfOut->wBitsPerSample = 16;
 264         This->pWfOut->nBlockAlign = 4;
 265         This->pWfOut->cbSize = 0;
 266         This->pWfOut->nAvgBytesPerSec = This->pWfOut->nChannels * This->pWfOut->nSamplesPerSec
 267                                                 * (This->pWfOut->wBitsPerSample/8);
 268
 269         if (!(res = acmStreamOpen(&drv, NULL, This->pWfIn, This->pWfOut, NULL, 0, 0, 0)))
 270         {
 271             This->has = drv;
 272
 273             /* Update buffer size of media samples in output */
 274             ((OutputPin*)This->tf.ppPins[1])->allocProps.cbBuffer = This->pWfOut->nAvgBytesPerSec / 2;
 275             TRACE("Connection accepted\n");
 276             return S_OK;
 277         }
 278         else
 279             FIXME("acmStreamOpen returned %d\n", res);
 280         FreeMediaType(outpmt);
 281         TRACE("Unable to find a suitable ACM decompressor\n");
 282     }
 283
 284     TRACE("Connection refused\n");
 285     return VFW_E_TYPE_NOT_ACCEPTED;
 286 }
 287
 288 static HRESULT ACMWrapper_Cleanup(TransformFilterImpl* pTransformFilter)
 289 {
 290     ACMWrapperImpl* This = (ACMWrapperImpl*)pTransformFilter;
 291
 292     TRACE("(%p)->()\n", This);
 293
 294     if (This->has)
 295         acmStreamClose(This->has, 0);
 296
 297     This->has = 0;
 298     This->lasttime_real = This->lasttime_sent = -1;
 299
 300     return S_OK;
 301 }
 302
 303 static const TransformFuncsTable ACMWrapper_FuncsTable = {
 304     NULL,
 305     ACMWrapper_ProcessSampleData,
 306     NULL,
 307     NULL,
 308     ACMWrapper_ConnectInput,
 309     ACMWrapper_Cleanup
 310 };
 311
 312 HRESULT ACMWrapper_create(IUnknown * pUnkOuter, LPVOID * ppv)
 313 {
 314     HRESULT hr;
 315     ACMWrapperImpl* This;
 316
 317     TRACE("(%p, %p)\n", pUnkOuter, ppv);
 318
 319     *ppv = NULL;
 320
 321     if (pUnkOuter)
 322         return CLASS_E_NOAGGREGATION;
 323
 324     /* Note: This memory is managed by the transform filter once created */
 325     This = CoTaskMemAlloc(sizeof(ACMWrapperImpl));
 326     ZeroMemory(This, sizeof(ACMWrapperImpl));
 327
 328     hr = TransformFilter_Create(&(This->tf), &CLSID_ACMWrapper, &ACMWrapper_FuncsTable, NULL, NULL, NULL);
 329
 330     if (FAILED(hr))
 331         return hr;
 332
 333     *ppv = (LPVOID)This;
 334     This->lasttime_real = This->lasttime_sent = -1;
 335
 336     return hr;
 337 }