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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  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, LPBYTE data, DWORD size)
  63 {
  64     ACMWrapperImpl* This = (ACMWrapperImpl*)pTransformFilter;
  65     AM_MEDIA_TYPE amt;
  66     HRESULT hr;
  67     IMediaSample* pSample = NULL;
  68     DWORD cbDstStream;
  69     LPBYTE pbDstStream;
  70     ACMSTREAMHEADER ash;
  71     DWORD offset = 0;
  72     BOOL stop = FALSE;
  73     BOOL unprepare_header = FALSE;
  74     MMRESULT res;
  75
  76     TRACE("(%p)->(%p,%ld)\n", This, data, size);
  77
  78     hr = IPin_ConnectionMediaType(This->tf.ppPins[0], &amt);
  79     if (FAILED(hr)) {
  80         ERR("Unable to retrieve media type\n");
  81         goto error;
  82     }
  83
  84     while(!stop)
  85     {
  86         DWORD rem_buf = This->max_size - This->current_size;
  87         DWORD rem_smp = size - offset;
  88         DWORD copy_size = min(rem_buf, rem_smp);
  89
  90         memcpy(This->buffer + This->current_size, data + offset, copy_size);
  91         This->current_size += copy_size;
  92         offset += copy_size;
  93
  94         if (offset == size)
  95             stop = TRUE;
  96         if (This->current_size < This->max_size)
  97             break;
  98
  99         hr = OutputPin_GetDeliveryBuffer((OutputPin*)This->tf.ppPins[1], &pSample, NULL, NULL, 0);
 100         if (FAILED(hr)) {
 101             ERR("Unable to get delivery buffer (%lx)\n", hr);
 102             goto error;
 103         }
 104
 105         hr = IMediaSample_SetActualDataLength(pSample, 0);
 106         assert(hr == S_OK);
 107
 108         hr = IMediaSample_GetPointer(pSample, &pbDstStream);
 109         if (FAILED(hr)) {
 110             ERR("Unable to get pointer to buffer (%lx)\n", hr);
 111             goto error;
 112         }
 113         cbDstStream = IMediaSample_GetSize(pSample);
 114
 115         ash.cbStruct = sizeof(ash);
 116         ash.fdwStatus = 0;
 117         ash.dwUser = 0;
 118         ash.pbSrc = This->buffer;
 119         ash.cbSrcLength = This->current_size;
 120         ash.pbDst = pbDstStream;
 121         ash.cbDstLength = cbDstStream;
 122
 123         if ((res = acmStreamPrepareHeader(This->has, &ash, 0))) {
 124             ERR("Cannot prepare header %d\n", res);
 125             goto error;
 126         }
 127
 128         unprepare_header = TRUE;
 129
 130         if ((res = acmStreamConvert(This->has, &ash, This->reinit_codec ? ACM_STREAMCONVERTF_START : 0))) {
 131             ERR("Cannot convert data header %d\n", res);
 132             goto error;
 133         }
 134         This->reinit_codec = FALSE;
 135
 136         TRACE("used in %lu, used out %lu\n", ash.cbSrcLengthUsed, ash.cbDstLengthUsed);
 137
 138         hr = IMediaSample_SetActualDataLength(pSample, ash.cbDstLengthUsed);
 139         assert(hr == S_OK);
 140
 141         if (ash.cbSrcLengthUsed < ash.cbSrcLength) {
 142             This->current_size = ash.cbSrcLength - ash.cbSrcLengthUsed;
 143             memmove(This->buffer, This->buffer + ash.cbSrcLengthUsed, This->current_size);
 144         }
 145         else
 146             This->current_size = 0;
 147
 148         hr = OutputPin_SendSample((OutputPin*)This->tf.ppPins[1], pSample);
 149         if (hr != S_OK && hr != VFW_E_NOT_CONNECTED) {
 150             ERR("Error sending sample (%lx)\n", hr);
 151             goto error;
 152         }
 153
 154 error:
 155         if (unprepare_header && (res = acmStreamUnprepareHeader(This->has, &ash, 0)))
 156             ERR("Cannot unprepare header %d\n", res);
 157
 158         if (pSample)
 159             IMediaSample_Release(pSample);
 160     }
 161
 162     return hr;
 163 }
 164
 165 static HRESULT ACMWrapper_ConnectInput(TransformFilterImpl* pTransformFilter, const AM_MEDIA_TYPE * pmt)
 166 {
 167     ACMWrapperImpl* This = (ACMWrapperImpl*)pTransformFilter;
 168     MMRESULT res;
 169
 170     TRACE("(%p)->(%p)\n", This, pmt);
 171
 172     if ((IsEqualIID(&pmt->majortype, &MEDIATYPE_Audio)) &&
 173         (!memcmp(((char*)&pmt->subtype)+4, ((char*)&MEDIATYPE_Audio)+4, sizeof(GUID)-4)) && /* Check root (GUID w/o FOURCC) */
 174         (IsEqualIID(&pmt->formattype, &FORMAT_WaveFormatEx)))
 175     {
 176         HACMSTREAM drv;
 177         AM_MEDIA_TYPE* outpmt = &((OutputPin*)This->tf.ppPins[1])->pin.mtCurrent;
 178         This->pWfIn = (LPWAVEFORMATEX)pmt->pbFormat;
 179
 180         /* HACK */
 181         /* TRACE("ALIGN = %d\n", pACMWrapper->pWfIn->nBlockAlign); */
 182         /* pACMWrapper->pWfIn->nBlockAlign = 1; */
 183
 184         /* Set output audio data to PCM */
 185         CopyMediaType(outpmt, pmt);
 186         outpmt->subtype.Data1 = WAVE_FORMAT_PCM;
 187         This->pWfOut = (WAVEFORMATEX*)outpmt->pbFormat;
 188         This->pWfOut->wFormatTag = WAVE_FORMAT_PCM;
 189         This->pWfOut->wBitsPerSample = 16;
 190         This->pWfOut->nBlockAlign = 4;
 191         This->pWfOut->cbSize = 0;
 192         This->pWfOut->nAvgBytesPerSec = This->pWfOut->nChannels * This->pWfOut->nSamplesPerSec
 193                                                 * (This->pWfOut->wBitsPerSample/8);
 194
 195         if (!(res = acmStreamOpen(&drv, NULL, This->pWfIn, This->pWfOut, NULL, 0, 0, 0)))
 196         {
 197             This->has = drv;
 198
 199             if ((res = acmStreamSize(drv, OUTPUT_BUFFER_SIZE, &This->max_size, ACM_STREAMSIZEF_DESTINATION))) {
 200                 ERR("Cannot retrieve input buffer size error %d!\n", res);
 201                 This->max_size = INPUT_BUFFER_SIZE;
 202             }
 203
 204             TRACE("input buffer size %ld\n", This->max_size);
 205
 206             /* Update buffer size of media samples in output */
 207             ((OutputPin*)This->tf.ppPins[1])->allocProps.cbBuffer = OUTPUT_BUFFER_SIZE;
 208
 209             TRACE("Connection accepted\n");
 210             return S_OK;
 211         }
 212         else
 213             FIXME("acmStreamOpen returned %d\n", res);
 214         FreeMediaType(outpmt);
 215         TRACE("Unable to find a suitable ACM decompressor\n");
 216     }
 217
 218     TRACE("Connection refused\n");
 219     return S_FALSE;
 220 }
 221
 222 static HRESULT ACMWrapper_Cleanup(TransformFilterImpl* pTransformFilter)
 223 {
 224     ACMWrapperImpl* This = (ACMWrapperImpl*)pTransformFilter;
 225
 226     TRACE("(%p)->()\n", This);
 227
 228     if (This->has)
 229         acmStreamClose(This->has, 0);
 230
 231     This->has = 0;
 232
 233     return S_OK;
 234 }
 235
 236 TransformFuncsTable ACMWrapper_FuncsTable = {
 237     NULL,
 238     ACMWrapper_ProcessSampleData,
 239     NULL,
 240     ACMWrapper_ConnectInput,
 241     ACMWrapper_Cleanup
 242 };
 243
 244 HRESULT ACMWrapper_create(IUnknown * pUnkOuter, LPVOID * ppv)
 245 {
 246     HRESULT hr;
 247     ACMWrapperImpl* This;
 248
 249     TRACE("(%p, %p)\n", pUnkOuter, ppv);
 250
 251     *ppv = NULL;
 252
 253     if (pUnkOuter)
 254         return CLASS_E_NOAGGREGATION;
 255
 256     /* Note: This memory is managed by the transform filter once created */
 257     This = CoTaskMemAlloc(sizeof(ACMWrapperImpl));
 258
 259     This->has = 0;
 260     This->reinit_codec = TRUE;
 261
 262     hr = TransformFilter_Create(&(This->tf), &CLSID_ACMWrapper, &ACMWrapper_FuncsTable);
 263
 264     if (FAILED(hr))
 265         return hr;
 266
 267     *ppv = (LPVOID)This;
 268
 269     return hr;
 270 }