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