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 "control_private.h"
  25 #include "pin.h"
  26
  27 #include "uuids.h"
  28 #include "mmreg.h"
  29 #include "windef.h"
  30 #include "winbase.h"
  31 #include "dshow.h"
  32 #include "strmif.h"
  33 #include "vfwmsgs.h"
  34 #include "evcode.h"
  35 #include "msacm.h"
  36
  37 #include <assert.h>
  38
  39 #include "wine/unicode.h"
  40 #include "wine/debug.h"
  41
  42 #include "transform.h"
  43
  44 WINE_DEFAULT_DEBUG_CHANNEL(quartz);
  45
  46 /* FIXME: Improve buffers management */
  47 #define OUTPUT_BUFFER_SIZE 15000
  48 #define INPUT_BUFFER_SIZE 4096
  49
  50 typedef struct ACMWrapperImpl
  51 {
  52     TransformFilterImpl tf;
  53     HACMSTREAM has;
  54     LPWAVEFORMATEX pWfIn;
  55     LPWAVEFORMATEX pWfOut;
  56     BYTE buffer[INPUT_BUFFER_SIZE];
  57     DWORD max_size;
  58     DWORD current_size;
  59     BOOL reinit_codec; /* FIXME: Should use sync points instead */
  60 } ACMWrapperImpl;
  61
  62 static HRESULT ACMWrapper_ProcessSampleData(TransformFilterImpl* pTransformFilter, IMediaSample *pSample)
  63 {
  64     ACMWrapperImpl* This = (ACMWrapperImpl*)pTransformFilter;
  65     AM_MEDIA_TYPE amt;
  66     IMediaSample* pOutSample = NULL;
  67     DWORD cbDstStream;
  68     LPBYTE pbDstStream;
  69     DWORD cbSrcStream = 0;
  70     LPBYTE pbSrcStream = NULL;
  71     ACMSTREAMHEADER ash;
  72     DWORD offset = 0;
  73     BOOL stop = FALSE;
  74     BOOL unprepare_header = FALSE;
  75     MMRESULT res;
  76     HRESULT hr;
  77
  78     hr = IMediaSample_GetPointer(pSample, &pbSrcStream);
  79     if (FAILED(hr))
  80     {
  81         ERR("Cannot get pointer to sample data (%x)\n", hr);
  82         return hr;
  83     }
  84
  85     cbSrcStream = IMediaSample_GetActualDataLength(pSample);
  86
  87     TRACE("Sample data ptr = %p, size = %ld\n", pbSrcStream, (long)cbSrcStream);
  88
  89     hr = IPin_ConnectionMediaType(This->tf.ppPins[0], &amt);
  90     if (FAILED(hr)) {
  91         ERR("Unable to retrieve media type\n");
  92         return hr;
  93     }
  94
  95     while(hr == S_OK && !stop)
  96     {
  97         DWORD rem_buf = This->max_size - This->current_size;
  98         DWORD rem_smp = cbSrcStream - offset;
  99         DWORD copy_size = min(rem_buf, rem_smp);
 100
 101         memcpy(This->buffer + This->current_size, pbSrcStream + offset, copy_size);
 102         This->current_size += copy_size;
 103         offset += copy_size;
 104
 105         if (offset >= cbSrcStream)
 106             stop = TRUE;
 107         if (This->current_size < This->max_size)
 108             break;
 109
 110         hr = OutputPin_GetDeliveryBuffer((OutputPin*)This->tf.ppPins[1], &pOutSample, NULL, NULL, 0);
 111         if (FAILED(hr)) {
 112             ERR("Unable to get delivery buffer (%x)\n", hr);
 113             return hr;
 114         }
 115
 116         hr = IMediaSample_SetActualDataLength(pOutSample, 0);
 117         assert(hr == S_OK);
 118
 119         hr = IMediaSample_GetPointer(pOutSample, &pbDstStream);
 120         if (FAILED(hr)) {
 121             ERR("Unable to get pointer to buffer (%x)\n", hr);
 122             goto error;
 123         }
 124         cbDstStream = IMediaSample_GetSize(pOutSample);
 125
 126         ash.cbStruct = sizeof(ash);
 127         ash.fdwStatus = 0;
 128         ash.dwUser = 0;
 129         ash.pbSrc = This->buffer;
 130         ash.cbSrcLength = This->current_size;
 131         ash.pbDst = pbDstStream;
 132         ash.cbDstLength = cbDstStream;
 133
 134         if ((res = acmStreamPrepareHeader(This->has, &ash, 0))) {
 135             ERR("Cannot prepare header %d\n", res);
 136             goto error;
 137         }
 138
 139         unprepare_header = TRUE;
 140
 141         if ((res = acmStreamConvert(This->has, &ash, This->reinit_codec ? ACM_STREAMCONVERTF_START : 0))) {
 142             ERR("Cannot convert data header %d\n", res);
 143             goto error;
 144         }
 145         This->reinit_codec = FALSE;
 146
 147         TRACE("used in %u, used out %u\n", ash.cbSrcLengthUsed, ash.cbDstLengthUsed);
 148
 149         hr = IMediaSample_SetActualDataLength(pOutSample, ash.cbDstLengthUsed);
 150         assert(hr == S_OK);
 151
 152         if (ash.cbSrcLengthUsed < ash.cbSrcLength) {
 153             This->current_size = ash.cbSrcLength - ash.cbSrcLengthUsed;
 154             memmove(This->buffer, This->buffer + ash.cbSrcLengthUsed, This->current_size);
 155         }
 156         else
 157             This->current_size = 0;
 158
 159         hr = OutputPin_SendSample((OutputPin*)This->tf.ppPins[1], pOutSample);
 160         if (hr != S_OK && hr != VFW_E_NOT_CONNECTED) {
 161             ERR("Error sending sample (%x)\n", hr);
 162             goto error;
 163         }
 164
 165 error:
 166         if (unprepare_header && (res = acmStreamUnprepareHeader(This->has, &ash, 0)))
 167             ERR("Cannot unprepare header %d\n", res);
 168         unprepare_header = FALSE;
 169
 170         if (pOutSample)
 171             IMediaSample_Release(pOutSample);
 172         pOutSample = NULL;
 173     }
 174
 175     return hr;
 176 }
 177
 178 static HRESULT ACMWrapper_ConnectInput(TransformFilterImpl* pTransformFilter, const AM_MEDIA_TYPE * pmt)
 179 {
 180     ACMWrapperImpl* This = (ACMWrapperImpl*)pTransformFilter;
 181     MMRESULT res;
 182
 183     TRACE("(%p)->(%p)\n", This, pmt);
 184
 185     /* Check root (GUID w/o FOURCC) */
 186     if ((IsEqualIID(&pmt->majortype, &MEDIATYPE_Audio)) &&
 187         (!memcmp(((const char *)&pmt->subtype)+4, ((const char *)&MEDIATYPE_Audio)+4, sizeof(GUID)-4)) &&
 188         (IsEqualIID(&pmt->formattype, &FORMAT_WaveFormatEx)))
 189     {
 190         HACMSTREAM drv;
 191         AM_MEDIA_TYPE* outpmt = &((OutputPin*)This->tf.ppPins[1])->pin.mtCurrent;
 192         This->pWfIn = (LPWAVEFORMATEX)pmt->pbFormat;
 193
 194         /* HACK */
 195         /* TRACE("ALIGN = %d\n", pACMWrapper->pWfIn->nBlockAlign); */
 196         /* pACMWrapper->pWfIn->nBlockAlign = 1; */
 197
 198         /* Set output audio data to PCM */
 199         CopyMediaType(outpmt, pmt);
 200         outpmt->subtype.Data1 = WAVE_FORMAT_PCM;
 201         This->pWfOut = (WAVEFORMATEX*)outpmt->pbFormat;
 202         This->pWfOut->wFormatTag = WAVE_FORMAT_PCM;
 203         This->pWfOut->wBitsPerSample = 16;
 204         This->pWfOut->nBlockAlign = 4;
 205         This->pWfOut->cbSize = 0;
 206         This->pWfOut->nAvgBytesPerSec = This->pWfOut->nChannels * This->pWfOut->nSamplesPerSec
 207                                                 * (This->pWfOut->wBitsPerSample/8);
 208
 209         if (!(res = acmStreamOpen(&drv, NULL, This->pWfIn, This->pWfOut, NULL, 0, 0, 0)))
 210         {
 211             This->has = drv;
 212
 213             if ((res = acmStreamSize(drv, OUTPUT_BUFFER_SIZE, &This->max_size, ACM_STREAMSIZEF_DESTINATION))) {
 214                 ERR("Cannot retrieve input buffer size error %d!\n", res);
 215                 This->max_size = INPUT_BUFFER_SIZE;
 216             }
 217
 218             TRACE("input buffer size %d\n", This->max_size);
 219
 220             /* Update buffer size of media samples in output */
 221             ((OutputPin*)This->tf.ppPins[1])->allocProps.cbBuffer = OUTPUT_BUFFER_SIZE;
 222
 223             TRACE("Connection accepted\n");
 224             return S_OK;
 225         }
 226         else
 227             FIXME("acmStreamOpen returned %d\n", res);
 228         FreeMediaType(outpmt);
 229         TRACE("Unable to find a suitable ACM decompressor\n");
 230     }
 231
 232     TRACE("Connection refused\n");
 233     return S_FALSE;
 234 }
 235
 236 static HRESULT ACMWrapper_Cleanup(TransformFilterImpl* pTransformFilter)
 237 {
 238     ACMWrapperImpl* This = (ACMWrapperImpl*)pTransformFilter;
 239
 240     TRACE("(%p)->()\n", This);
 241
 242     if (This->has)
 243         acmStreamClose(This->has, 0);
 244
 245     This->has = 0;
 246
 247     return S_OK;
 248 }
 249
 250 static const TransformFuncsTable ACMWrapper_FuncsTable = {
 251     NULL,
 252     ACMWrapper_ProcessSampleData,
 253     NULL,
 254     NULL,
 255     ACMWrapper_ConnectInput,
 256     ACMWrapper_Cleanup
 257 };
 258
 259 HRESULT ACMWrapper_create(IUnknown * pUnkOuter, LPVOID * ppv)
 260 {
 261     HRESULT hr;
 262     ACMWrapperImpl* This;
 263
 264     TRACE("(%p, %p)\n", pUnkOuter, ppv);
 265
 266     *ppv = NULL;
 267
 268     if (pUnkOuter)
 269         return CLASS_E_NOAGGREGATION;
 270
 271     /* Note: This memory is managed by the transform filter once created */
 272     This = CoTaskMemAlloc(sizeof(ACMWrapperImpl));
 273     ZeroMemory(This, sizeof(ACMWrapperImpl));
 274
 275     This->reinit_codec = TRUE;
 276
 277     hr = TransformFilter_Create(&(This->tf), &CLSID_ACMWrapper, &ACMWrapper_FuncsTable);
 278
 279     if (FAILED(hr))
 280         return hr;
 281
 282     *ppv = (LPVOID)This;
 283
 284     return hr;
 285 }