dlls/quartz/acmwrapper.c

   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 } ACMWrapperImpl;
  51
  52 static HRESULT ACMWrapper_ProcessSampleData(TransformFilterImpl* pTransformFilter, IMediaSample *pSample)
  53 {
  54     ACMWrapperImpl* This = (ACMWrapperImpl*)pTransformFilter;
  55     AM_MEDIA_TYPE amt;
  56     IMediaSample* pOutSample = NULL;
  57     DWORD cbDstStream, cbSrcStream;
  58     LPBYTE pbDstStream;
  59     LPBYTE pbSrcStream = NULL;
  60     ACMSTREAMHEADER ash;
  61     BOOL unprepare_header = FALSE;
  62     MMRESULT res;
  63     HRESULT hr;
  64     LONGLONG tStart = -1, tStop = -1, tMed;
  65
  66     hr = IMediaSample_GetPointer(pSample, &pbSrcStream);
  67     if (FAILED(hr))
  68     {
  69         ERR("Cannot get pointer to sample data (%x)\n", hr);
  70         return hr;
  71     }
  72
  73     IMediaSample_GetTime(pSample, &tStart, &tStop);
  74     cbSrcStream = IMediaSample_GetActualDataLength(pSample);
  75
  76     TRACE("Sample data ptr = %p, size = %ld\n", pbSrcStream, (long)cbSrcStream);
  77
  78     hr = IPin_ConnectionMediaType(This->tf.ppPins[0], &amt);
  79     if (FAILED(hr)) {
  80         ERR("Unable to retrieve media type\n");
  81         return hr;
  82     }
  83
  84     ash.pbSrc = pbSrcStream;
  85     ash.cbSrcLength = cbSrcStream;
  86
  87     while(hr == S_OK && ash.cbSrcLength)
  88     {
  89         hr = OutputPin_GetDeliveryBuffer((OutputPin*)This->tf.ppPins[1], &pOutSample, NULL, NULL, 0);
  90         if (FAILED(hr)) {
  91             ERR("Unable to get delivery buffer (%x)\n", hr);
  92             return hr;
  93         }
  94
  95         hr = IMediaSample_SetActualDataLength(pOutSample, 0);
  96         assert(hr == S_OK);
  97
  98         hr = IMediaSample_GetPointer(pOutSample, &pbDstStream);
  99         if (FAILED(hr)) {
 100             ERR("Unable to get pointer to buffer (%x)\n", hr);
 101             goto error;
 102         }
 103         cbDstStream = IMediaSample_GetSize(pOutSample);
 104
 105         ash.cbStruct = sizeof(ash);
 106         ash.fdwStatus = 0;
 107         ash.dwUser = 0;
 108         ash.pbDst = pbDstStream;
 109         ash.cbDstLength = cbDstStream;
 110
 111         if ((res = acmStreamPrepareHeader(This->has, &ash, 0))) {
 112             ERR("Cannot prepare header %d\n", res);
 113             goto error;
 114         }
 115         unprepare_header = TRUE;
 116
 117         if (IMediaSample_IsDiscontinuity(pSample) == S_OK)
 118             res = acmStreamConvert(This->has, &ash, ACM_STREAMCONVERTF_START);
 119         else
 120             res = acmStreamConvert(This->has, &ash, 0);
 121
 122
 123         if (res)
 124         {
 125             if(res != MMSYSERR_MOREDATA)
 126                 ERR("Cannot convert data header %d\n", res);
 127             goto error;
 128         }
 129
 130         TRACE("used in %u/%u, used out %u/%u\n", ash.cbSrcLengthUsed, ash.cbSrcLength, ash.cbDstLengthUsed, ash.cbDstLength);
 131
 132         hr = IMediaSample_SetActualDataLength(pOutSample, ash.cbDstLengthUsed);
 133         assert(hr == S_OK);
 134
 135         if (!ash.cbSrcLengthUsed)
 136         {
 137             WARN("Sample was skipped\n");
 138             ash.cbSrcLength = 0;
 139             goto error;
 140         }
 141
 142         TRACE("Sample start time: %u.%03u\n", (DWORD)(tStart/10000000), (DWORD)((tStart/10000)%1000));
 143         if (ash.cbSrcLengthUsed == cbSrcStream)
 144         {
 145             IMediaSample_SetTime(pOutSample, &tStart, &tStop);
 146             tStart = tStop;
 147         }
 148         else if (tStop != tStart)
 149         {
 150             tMed = tStop - tStart;
 151             tMed = tStart + tMed * ash.cbSrcLengthUsed / cbSrcStream;
 152             IMediaSample_SetTime(pOutSample, &tStart, &tMed);
 153             tStart = tMed;
 154         }
 155         else
 156         {
 157             ERR("No valid timestamp found\n");
 158             IMediaSample_SetTime(pOutSample, NULL, NULL);
 159         }
 160         TRACE("Sample stop time: %u.%03u\n", (DWORD)(tStart/10000000), (DWORD)((tStart/10000)%1000));
 161
 162         if (IMediaSample_IsDiscontinuity(pSample) == S_FALSE)
 163             hr = OutputPin_SendSample((OutputPin*)This->tf.ppPins[1], pOutSample);
 164         else
 165             TRACE("Skipping first sample: Discontinuity\n");
 166
 167         if (hr != S_OK && hr != VFW_E_NOT_CONNECTED) {
 168             if (FAILED(hr))
 169                 ERR("Error sending sample (%x)\n", hr);
 170             goto error;
 171         }
 172
 173 error:
 174         if (unprepare_header && (res = acmStreamUnprepareHeader(This->has, &ash, 0)))
 175             ERR("Cannot unprepare header %d\n", res);
 176         unprepare_header = FALSE;
 177         ash.pbSrc += ash.cbSrcLengthUsed;
 178         ash.cbSrcLength -= ash.cbSrcLengthUsed;
 179
 180         if (pOutSample)
 181             IMediaSample_Release(pOutSample);
 182         pOutSample = NULL;
 183     }
 184
 185     return hr;
 186 }
 187
 188 static HRESULT ACMWrapper_ConnectInput(TransformFilterImpl* pTransformFilter, const AM_MEDIA_TYPE * pmt)
 189 {
 190     ACMWrapperImpl* This = (ACMWrapperImpl*)pTransformFilter;
 191     MMRESULT res;
 192
 193     TRACE("(%p)->(%p)\n", This, pmt);
 194
 195     /* Check root (GUID w/o FOURCC) */
 196     if ((IsEqualIID(&pmt->majortype, &MEDIATYPE_Audio)) &&
 197         (!memcmp(((const char *)&pmt->subtype)+4, ((const char *)&MEDIATYPE_Audio)+4, sizeof(GUID)-4)) &&
 198         (IsEqualIID(&pmt->formattype, &FORMAT_WaveFormatEx)))
 199     {
 200         HACMSTREAM drv;
 201         AM_MEDIA_TYPE* outpmt = &((OutputPin*)This->tf.ppPins[1])->pin.mtCurrent;
 202         This->pWfIn = (LPWAVEFORMATEX)pmt->pbFormat;
 203
 204         /* HACK */
 205         /* TRACE("ALIGN = %d\n", pACMWrapper->pWfIn->nBlockAlign); */
 206         /* pACMWrapper->pWfIn->nBlockAlign = 1; */
 207
 208         /* Set output audio data to PCM */
 209         CopyMediaType(outpmt, pmt);
 210         outpmt->subtype.Data1 = WAVE_FORMAT_PCM;
 211         This->pWfOut = (WAVEFORMATEX*)outpmt->pbFormat;
 212         This->pWfOut->wFormatTag = WAVE_FORMAT_PCM;
 213         This->pWfOut->wBitsPerSample = 16;
 214         This->pWfOut->nBlockAlign = 4;
 215         This->pWfOut->cbSize = 0;
 216         This->pWfOut->nAvgBytesPerSec = This->pWfOut->nChannels * This->pWfOut->nSamplesPerSec
 217                                                 * (This->pWfOut->wBitsPerSample/8);
 218
 219         if (!(res = acmStreamOpen(&drv, NULL, This->pWfIn, This->pWfOut, NULL, 0, 0, 0)))
 220         {
 221             This->has = drv;
 222
 223             /* Update buffer size of media samples in output */
 224             ((OutputPin*)This->tf.ppPins[1])->allocProps.cbBuffer = This->pWfOut->nAvgBytesPerSec / 2;
 225             TRACE("Connection accepted\n");
 226             return S_OK;
 227         }
 228         else
 229             FIXME("acmStreamOpen returned %d\n", res);
 230         FreeMediaType(outpmt);
 231         TRACE("Unable to find a suitable ACM decompressor\n");
 232     }
 233
 234     TRACE("Connection refused\n");
 235     return VFW_E_TYPE_NOT_ACCEPTED;
 236 }
 237
 238 static HRESULT ACMWrapper_Cleanup(TransformFilterImpl* pTransformFilter)
 239 {
 240     ACMWrapperImpl* This = (ACMWrapperImpl*)pTransformFilter;
 241
 242     TRACE("(%p)->()\n", This);
 243
 244     if (This->has)
 245         acmStreamClose(This->has, 0);
 246
 247     This->has = 0;
 248
 249     return S_OK;
 250 }
 251
 252 static const TransformFuncsTable ACMWrapper_FuncsTable = {
 253     NULL,
 254     ACMWrapper_ProcessSampleData,
 255     NULL,
 256     NULL,
 257     ACMWrapper_ConnectInput,
 258     ACMWrapper_Cleanup
 259 };
 260
 261 HRESULT ACMWrapper_create(IUnknown * pUnkOuter, LPVOID * ppv)
 262 {
 263     HRESULT hr;
 264     ACMWrapperImpl* This;
 265
 266     TRACE("(%p, %p)\n", pUnkOuter, ppv);
 267
 268     *ppv = NULL;
 269
 270     if (pUnkOuter)
 271         return CLASS_E_NOAGGREGATION;
 272
 273     /* Note: This memory is managed by the transform filter once created */
 274     This = CoTaskMemAlloc(sizeof(ACMWrapperImpl));
 275     ZeroMemory(This, sizeof(ACMWrapperImpl));
 276
 277     hr = TransformFilter_Create(&(This->tf), &CLSID_ACMWrapper, &ACMWrapper_FuncsTable, NULL, NULL, NULL);
 278
 279     if (FAILED(hr))
 280         return hr;
 281
 282     *ppv = (LPVOID)This;
 283
 284     return hr;
 285 }