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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(InputPin *pin, IMediaSample *pSample)
  56 {
  57     ACMWrapperImpl* This = (ACMWrapperImpl*)pin->pin.pinInfo.pFilter;
  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
  69     EnterCriticalSection(&This->tf.csFilter);
  70     if (This->tf.state == State_Stopped)
  71     {
  72         LeaveCriticalSection(&This->tf.csFilter);
  73         return VFW_E_WRONG_STATE;
  74     }
  75
  76     if (pin->end_of_stream || pin->flushing)
  77     {
  78         LeaveCriticalSection(&This->tf.csFilter);
  79         return S_FALSE;
  80     }
  81
  82     hr = IMediaSample_GetPointer(pSample, &pbSrcStream);
  83     if (FAILED(hr))
  84     {
  85         ERR("Cannot get pointer to sample data (%x)\n", hr);
  86         LeaveCriticalSection(&This->tf.csFilter);
  87         return hr;
  88     }
  89
  90     preroll = (IMediaSample_IsPreroll(pSample) == S_OK);
  91
  92     IMediaSample_GetTime(pSample, &tStart, &tStop);
  93     cbSrcStream = IMediaSample_GetActualDataLength(pSample);
  94
  95     /* Prevent discontinuities when codecs 'absorb' data but not give anything back in return */
  96     if (IMediaSample_IsDiscontinuity(pSample) == S_OK)
  97     {
  98         This->lasttime_real = tStart;
  99         This->lasttime_sent = tStart;
 100     }
 101     else if (This->lasttime_real == tStart)
 102         tStart = This->lasttime_sent;
 103     else
 104         WARN("Discontinuity\n");
 105
 106     tMed = tStart;
 107
 108     TRACE("Sample data ptr = %p, size = %d\n", pbSrcStream, cbSrcStream);
 109
 110     hr = IPin_ConnectionMediaType(This->tf.ppPins[0], &amt);
 111     if (FAILED(hr))
 112     {
 113         ERR("Unable to retrieve media type\n");
 114         LeaveCriticalSection(&This->tf.csFilter);
 115         return hr;
 116     }
 117
 118     ash.pbSrc = pbSrcStream;
 119     ash.cbSrcLength = cbSrcStream;
 120
 121     while(hr == S_OK && ash.cbSrcLength)
 122     {
 123         hr = OutputPin_GetDeliveryBuffer((OutputPin*)This->tf.ppPins[1], &pOutSample, NULL, NULL, 0);
 124         if (FAILED(hr))
 125         {
 126             ERR("Unable to get delivery buffer (%x)\n", hr);
 127             LeaveCriticalSection(&This->tf.csFilter);
 128             return hr;
 129         }
 130         IMediaSample_SetPreroll(pOutSample, preroll);
 131
 132         hr = IMediaSample_SetActualDataLength(pOutSample, 0);
 133         assert(hr == S_OK);
 134
 135         hr = IMediaSample_GetPointer(pOutSample, &pbDstStream);
 136         if (FAILED(hr)) {
 137             ERR("Unable to get pointer to buffer (%x)\n", hr);
 138             goto error;
 139         }
 140         cbDstStream = IMediaSample_GetSize(pOutSample);
 141
 142         ash.cbStruct = sizeof(ash);
 143         ash.fdwStatus = 0;
 144         ash.dwUser = 0;
 145         ash.pbDst = pbDstStream;
 146         ash.cbDstLength = cbDstStream;
 147
 148         if ((res = acmStreamPrepareHeader(This->has, &ash, 0))) {
 149             ERR("Cannot prepare header %d\n", res);
 150             goto error;
 151         }
 152         unprepare_header = TRUE;
 153
 154         if (IMediaSample_IsDiscontinuity(pSample) == S_OK)
 155         {
 156             res = acmStreamConvert(This->has, &ash, ACM_STREAMCONVERTF_START);
 157             IMediaSample_SetDiscontinuity(pOutSample, TRUE);
 158             /* One sample could be converted to multiple packets */
 159             IMediaSample_SetDiscontinuity(pSample, FALSE);
 160         }
 161         else
 162         {
 163             res = acmStreamConvert(This->has, &ash, 0);
 164             IMediaSample_SetDiscontinuity(pOutSample, FALSE);
 165         }
 166
 167         if (res)
 168         {
 169             if(res != MMSYSERR_MOREDATA)
 170                 ERR("Cannot convert data header %d\n", res);
 171             goto error;
 172         }
 173
 174         TRACE("used in %u/%u, used out %u/%u\n", ash.cbSrcLengthUsed, ash.cbSrcLength, ash.cbDstLengthUsed, ash.cbDstLength);
 175
 176         hr = IMediaSample_SetActualDataLength(pOutSample, ash.cbDstLengthUsed);
 177         assert(hr == S_OK);
 178
 179         /* Bug in acm codecs? It apparantly uses the input, but doesn't necessarily output immediately kl*/
 180         if (!ash.cbSrcLengthUsed)
 181         {
 182             WARN("Sample was skipped? Outputted: %u\n", ash.cbDstLengthUsed);
 183             ash.cbSrcLength = 0;
 184             goto error;
 185         }
 186
 187         TRACE("Sample start time: %u.%03u\n", (DWORD)(tStart/10000000), (DWORD)((tStart/10000)%1000));
 188         if (ash.cbSrcLengthUsed == cbSrcStream)
 189         {
 190             IMediaSample_SetTime(pOutSample, &tStart, &tStop);
 191             tStart = tMed = tStop;
 192         }
 193         else if (tStop != tStart)
 194         {
 195             tMed = tStop - tStart;
 196             tMed = tStart + tMed * ash.cbSrcLengthUsed / cbSrcStream;
 197             IMediaSample_SetTime(pOutSample, &tStart, &tMed);
 198             tStart = tMed;
 199         }
 200         else
 201         {
 202             ERR("No valid timestamp found\n");
 203             IMediaSample_SetTime(pOutSample, NULL, NULL);
 204         }
 205         TRACE("Sample stop time: %u.%03u\n", (DWORD)(tStart/10000000), (DWORD)((tStart/10000)%1000));
 206
 207         LeaveCriticalSection(&This->tf.csFilter);
 208         hr = OutputPin_SendSample((OutputPin*)This->tf.ppPins[1], pOutSample);
 209         EnterCriticalSection(&This->tf.csFilter);
 210
 211         if (hr != S_OK && hr != VFW_E_NOT_CONNECTED) {
 212             if (FAILED(hr))
 213                 ERR("Error sending sample (%x)\n", hr);
 214             goto error;
 215         }
 216
 217 error:
 218         if (unprepare_header && (res = acmStreamUnprepareHeader(This->has, &ash, 0)))
 219             ERR("Cannot unprepare header %d\n", res);
 220         unprepare_header = FALSE;
 221         ash.pbSrc += ash.cbSrcLengthUsed;
 222         ash.cbSrcLength -= ash.cbSrcLengthUsed;
 223
 224         if (pOutSample)
 225             IMediaSample_Release(pOutSample);
 226         pOutSample = NULL;
 227
 228     }
 229
 230     This->lasttime_real = tStop;
 231     This->lasttime_sent = tMed;
 232
 233     LeaveCriticalSection(&This->tf.csFilter);
 234     return hr;
 235 }
 236
 237 static HRESULT ACMWrapper_ConnectInput(InputPin *pin, const AM_MEDIA_TYPE * pmt)
 238 {
 239     ACMWrapperImpl* This = (ACMWrapperImpl *)pin->pin.pinInfo.pFilter;
 240     MMRESULT res;
 241
 242     TRACE("(%p)->(%p)\n", This, pmt);
 243
 244     /* Check root (GUID w/o FOURCC) */
 245     if ((IsEqualIID(&pmt->majortype, &MEDIATYPE_Audio)) &&
 246         (!memcmp(((const char *)&pmt->subtype)+4, ((const char *)&MEDIATYPE_Audio)+4, sizeof(GUID)-4)) &&
 247         (IsEqualIID(&pmt->formattype, &FORMAT_WaveFormatEx)))
 248     {
 249         HACMSTREAM drv;
 250         AM_MEDIA_TYPE* outpmt = &This->tf.pmt;
 251         FreeMediaType(outpmt);
 252
 253         This->pWfIn = (LPWAVEFORMATEX)pmt->pbFormat;
 254
 255         /* HACK */
 256         /* TRACE("ALIGN = %d\n", pACMWrapper->pWfIn->nBlockAlign); */
 257         /* pACMWrapper->pWfIn->nBlockAlign = 1; */
 258
 259         /* Set output audio data to PCM */
 260         CopyMediaType(outpmt, pmt);
 261         outpmt->subtype.Data1 = WAVE_FORMAT_PCM;
 262         This->pWfOut = (WAVEFORMATEX*)outpmt->pbFormat;
 263         This->pWfOut->wFormatTag = WAVE_FORMAT_PCM;
 264         This->pWfOut->wBitsPerSample = 16;
 265         This->pWfOut->nBlockAlign = This->pWfOut->wBitsPerSample * This->pWfOut->nChannels / 8;
 266         This->pWfOut->cbSize = 0;
 267         This->pWfOut->nAvgBytesPerSec = This->pWfOut->nChannels * This->pWfOut->nSamplesPerSec
 268                                                 * (This->pWfOut->wBitsPerSample/8);
 269
 270         if (!(res = acmStreamOpen(&drv, NULL, This->pWfIn, This->pWfOut, NULL, 0, 0, 0)))
 271         {
 272             This->has = drv;
 273
 274             /* Update buffer size of media samples in output */
 275             ((OutputPin*)This->tf.ppPins[1])->allocProps.cbBuffer = This->pWfOut->nAvgBytesPerSec / 2;
 276             TRACE("Connection accepted\n");
 277             return S_OK;
 278         }
 279         else
 280             FIXME("acmStreamOpen returned %d\n", res);
 281         FreeMediaType(outpmt);
 282         TRACE("Unable to find a suitable ACM decompressor\n");
 283     }
 284
 285     TRACE("Connection refused\n");
 286     return VFW_E_TYPE_NOT_ACCEPTED;
 287 }
 288
 289 static HRESULT ACMWrapper_Cleanup(InputPin *pin)
 290 {
 291     ACMWrapperImpl *This = (ACMWrapperImpl *)pin->pin.pinInfo.pFilter;
 292
 293     TRACE("(%p)->()\n", This);
 294
 295     if (This->has)
 296         acmStreamClose(This->has, 0);
 297
 298     This->has = 0;
 299     This->lasttime_real = This->lasttime_sent = -1;
 300
 301     return S_OK;
 302 }
 303
 304 static const TransformFuncsTable ACMWrapper_FuncsTable = {
 305     NULL,
 306     ACMWrapper_ProcessSampleData,
 307     NULL,
 308     NULL,
 309     ACMWrapper_ConnectInput,
 310     ACMWrapper_Cleanup
 311 };
 312
 313 HRESULT ACMWrapper_create(IUnknown * pUnkOuter, LPVOID * ppv)
 314 {
 315     HRESULT hr;
 316     ACMWrapperImpl* This;
 317
 318     TRACE("(%p, %p)\n", pUnkOuter, ppv);
 319
 320     *ppv = NULL;
 321
 322     if (pUnkOuter)
 323         return CLASS_E_NOAGGREGATION;
 324
 325     /* Note: This memory is managed by the transform filter once created */
 326     This = CoTaskMemAlloc(sizeof(ACMWrapperImpl));
 327     ZeroMemory(This, sizeof(ACMWrapperImpl));
 328
 329     hr = TransformFilter_Create(&(This->tf), &CLSID_ACMWrapper, &ACMWrapper_FuncsTable, NULL, NULL, NULL);
 330
 331     if (FAILED(hr))
 332         return hr;
 333
 334     *ppv = This;
 335     This->lasttime_real = This->lasttime_sent = -1;
 336
 337     return hr;
 338 }