dlls/mciavi32/mmoutput.c

   1 /*
   2  * Digital video MCI Wine Driver
   3  *
   4  * Copyright 1999, 2000 Eric POUECH
   5  * Copyright 2003 Dmitry Timoshkov
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "private_mciavi.h"
  23 #include "wine/debug.h"
  24
  25 WINE_DEFAULT_DEBUG_CHANNEL(mciavi);
  26
  27 static BOOL MCIAVI_GetInfoAudio(WINE_MCIAVI* wma, const MMCKINFO* mmckList, MMCKINFO *mmckStream)
  28 {
  29     MMCKINFO    mmckInfo;
  30
  31     TRACE("ash.fccType='%c%c%c%c'\n",           LOBYTE(LOWORD(wma->ash_audio.fccType)),
  32                                                 HIBYTE(LOWORD(wma->ash_audio.fccType)),
  33                                                 LOBYTE(HIWORD(wma->ash_audio.fccType)),
  34                                                 HIBYTE(HIWORD(wma->ash_audio.fccType)));
  35     if (wma->ash_audio.fccHandler) /* not all streams specify a handler */
  36         TRACE("ash.fccHandler='%c%c%c%c'\n",    LOBYTE(LOWORD(wma->ash_audio.fccHandler)),
  37                                                 HIBYTE(LOWORD(wma->ash_audio.fccHandler)),
  38                                                 LOBYTE(HIWORD(wma->ash_audio.fccHandler)),
  39                                                 HIBYTE(HIWORD(wma->ash_audio.fccHandler)));
  40     else
  41         TRACE("ash.fccHandler=0, no handler specified\n");
  42     TRACE("ash.dwFlags=%d\n",                   wma->ash_audio.dwFlags);
  43     TRACE("ash.wPriority=%d\n",                 wma->ash_audio.wPriority);
  44     TRACE("ash.wLanguage=%d\n",                 wma->ash_audio.wLanguage);
  45     TRACE("ash.dwInitialFrames=%d\n",           wma->ash_audio.dwInitialFrames);
  46     TRACE("ash.dwScale=%d\n",                   wma->ash_audio.dwScale);
  47     TRACE("ash.dwRate=%d\n",                    wma->ash_audio.dwRate);
  48     TRACE("ash.dwStart=%d\n",                   wma->ash_audio.dwStart);
  49     TRACE("ash.dwLength=%d\n",          wma->ash_audio.dwLength);
  50     TRACE("ash.dwSuggestedBufferSize=%d\n",     wma->ash_audio.dwSuggestedBufferSize);
  51     TRACE("ash.dwQuality=%d\n",                 wma->ash_audio.dwQuality);
  52     TRACE("ash.dwSampleSize=%d\n",              wma->ash_audio.dwSampleSize);
  53     TRACE("ash.rcFrame=(%d,%d,%d,%d)\n",        wma->ash_audio.rcFrame.top, wma->ash_audio.rcFrame.left,
  54           wma->ash_audio.rcFrame.bottom, wma->ash_audio.rcFrame.right);
  55
  56     /* rewind to the start of the stream */
  57     mmioAscend(wma->hFile, mmckStream, 0);
  58
  59     mmckInfo.ckid = ckidSTREAMFORMAT;
  60     if (mmioDescend(wma->hFile, &mmckInfo, mmckList, MMIO_FINDCHUNK) != 0) {
  61        WARN("Can't find 'strf' chunk\n");
  62         return FALSE;
  63     }
  64     if (mmckInfo.cksize < sizeof(WAVEFORMAT)) {
  65         WARN("Size of strf chunk (%d) < audio format struct\n", mmckInfo.cksize);
  66         return FALSE;
  67     }
  68     wma->lpWaveFormat = HeapAlloc(GetProcessHeap(), 0, mmckInfo.cksize);
  69     if (!wma->lpWaveFormat) {
  70         WARN("Can't alloc WaveFormat\n");
  71         return FALSE;
  72     }
  73
  74     mmioRead(wma->hFile, (LPSTR)wma->lpWaveFormat, mmckInfo.cksize);
  75
  76     TRACE("waveFormat.wFormatTag=%d\n",         wma->lpWaveFormat->wFormatTag);
  77     TRACE("waveFormat.nChannels=%d\n",          wma->lpWaveFormat->nChannels);
  78     TRACE("waveFormat.nSamplesPerSec=%d\n",     wma->lpWaveFormat->nSamplesPerSec);
  79     TRACE("waveFormat.nAvgBytesPerSec=%d\n",    wma->lpWaveFormat->nAvgBytesPerSec);
  80     TRACE("waveFormat.nBlockAlign=%d\n",        wma->lpWaveFormat->nBlockAlign);
  81     TRACE("waveFormat.wBitsPerSample=%d\n",     wma->lpWaveFormat->wBitsPerSample);
  82     if (mmckInfo.cksize >= sizeof(WAVEFORMATEX))
  83         TRACE("waveFormat.cbSize=%d\n",                 wma->lpWaveFormat->cbSize);
  84
  85     return TRUE;
  86 }
  87
  88 static BOOL MCIAVI_GetInfoVideo(WINE_MCIAVI* wma, const MMCKINFO* mmckList, MMCKINFO* mmckStream)
  89 {
  90     MMCKINFO    mmckInfo;
  91
  92     TRACE("ash.fccType='%c%c%c%c'\n",           LOBYTE(LOWORD(wma->ash_video.fccType)),
  93                                                 HIBYTE(LOWORD(wma->ash_video.fccType)),
  94                                                 LOBYTE(HIWORD(wma->ash_video.fccType)),
  95                                                 HIBYTE(HIWORD(wma->ash_video.fccType)));
  96     TRACE("ash.fccHandler='%c%c%c%c'\n",        LOBYTE(LOWORD(wma->ash_video.fccHandler)),
  97                                                 HIBYTE(LOWORD(wma->ash_video.fccHandler)),
  98                                                 LOBYTE(HIWORD(wma->ash_video.fccHandler)),
  99                                                 HIBYTE(HIWORD(wma->ash_video.fccHandler)));
 100     TRACE("ash.dwFlags=%d\n",                   wma->ash_video.dwFlags);
 101     TRACE("ash.wPriority=%d\n",                 wma->ash_video.wPriority);
 102     TRACE("ash.wLanguage=%d\n",                 wma->ash_video.wLanguage);
 103     TRACE("ash.dwInitialFrames=%d\n",           wma->ash_video.dwInitialFrames);
 104     TRACE("ash.dwScale=%d\n",                   wma->ash_video.dwScale);
 105     TRACE("ash.dwRate=%d\n",                    wma->ash_video.dwRate);
 106     TRACE("ash.dwStart=%d\n",                   wma->ash_video.dwStart);
 107     TRACE("ash.dwLength=%d\n",          wma->ash_video.dwLength);
 108     TRACE("ash.dwSuggestedBufferSize=%d\n",     wma->ash_video.dwSuggestedBufferSize);
 109     TRACE("ash.dwQuality=%d\n",                 wma->ash_video.dwQuality);
 110     TRACE("ash.dwSampleSize=%d\n",              wma->ash_video.dwSampleSize);
 111     TRACE("ash.rcFrame=(%d,%d,%d,%d)\n",        wma->ash_video.rcFrame.top, wma->ash_video.rcFrame.left,
 112           wma->ash_video.rcFrame.bottom, wma->ash_video.rcFrame.right);
 113
 114     /* rewind to the start of the stream */
 115     mmioAscend(wma->hFile, mmckStream, 0);
 116
 117     mmckInfo.ckid = ckidSTREAMFORMAT;
 118     if (mmioDescend(wma->hFile, &mmckInfo, mmckList, MMIO_FINDCHUNK) != 0) {
 119        WARN("Can't find 'strf' chunk\n");
 120         return FALSE;
 121     }
 122
 123     wma->inbih = HeapAlloc(GetProcessHeap(), 0, mmckInfo.cksize);
 124     if (!wma->inbih) {
 125         WARN("Can't alloc input BIH\n");
 126         return FALSE;
 127     }
 128
 129     mmioRead(wma->hFile, (LPSTR)wma->inbih, mmckInfo.cksize);
 130
 131     TRACE("bih.biSize=%d\n",            wma->inbih->biSize);
 132     TRACE("bih.biWidth=%d\n",           wma->inbih->biWidth);
 133     TRACE("bih.biHeight=%d\n",  wma->inbih->biHeight);
 134     TRACE("bih.biPlanes=%d\n",          wma->inbih->biPlanes);
 135     TRACE("bih.biBitCount=%d\n",        wma->inbih->biBitCount);
 136     TRACE("bih.biCompression=%x\n",     wma->inbih->biCompression);
 137     TRACE("bih.biSizeImage=%d\n",       wma->inbih->biSizeImage);
 138     TRACE("bih.biXPelsPerMeter=%d\n",   wma->inbih->biXPelsPerMeter);
 139     TRACE("bih.biYPelsPerMeter=%d\n",   wma->inbih->biYPelsPerMeter);
 140     TRACE("bih.biClrUsed=%d\n",         wma->inbih->biClrUsed);
 141     TRACE("bih.biClrImportant=%d\n",    wma->inbih->biClrImportant);
 142
 143     wma->source.left = 0;
 144     wma->source.top = 0;
 145     wma->source.right = wma->inbih->biWidth;
 146     wma->source.bottom = wma->inbih->biHeight;
 147
 148     wma->dest = wma->source;
 149
 150     return TRUE;
 151 }
 152
 153 struct AviListBuild {
 154     DWORD       numVideoFrames;
 155     DWORD       numAudioAllocated;
 156     DWORD       numAudioBlocks;
 157     DWORD       inVideoSize;
 158     DWORD       inAudioSize;
 159 };
 160
 161 static BOOL     MCIAVI_AddFrame(WINE_MCIAVI* wma, LPMMCKINFO mmck,
 162                                 struct AviListBuild* alb)
 163 {
 164     const BYTE *p;
 165     DWORD stream_n;
 166     DWORD twocc;
 167
 168     if (mmck->ckid == ckidAVIPADDING) return TRUE;
 169
 170     p = (const BYTE *)&mmck->ckid;
 171
 172     if (!isxdigit(p[0]) || !isxdigit(p[1]))
 173     {
 174         WARN("wrongly encoded stream #\n");
 175         return FALSE;
 176     }
 177
 178     stream_n = (p[0] <= '9') ? (p[0] - '0') : (tolower(p[0]) - 'a' + 10);
 179     stream_n <<= 4;
 180     stream_n |= (p[1] <= '9') ? (p[1] - '0') : (tolower(p[1]) - 'a' + 10);
 181
 182     TRACE("ckid %4.4s (stream #%d)\n", (LPSTR)&mmck->ckid, stream_n);
 183
 184     /* Some (rare?) AVI files have video streams name XXYY where XX = stream number and YY = TWOCC
 185      * of the last 2 characters of the biCompression member of the BITMAPINFOHEADER structure.
 186      * Ex: fccHandler = IV32 & biCompression = IV32 => stream name = XX32
 187      *     fccHandler = MSVC & biCompression = CRAM => stream name = XXAM
 188      * Another possibility is that these TWOCC are simply ignored.
 189      * Default to cktypeDIBcompressed when this case happens.
 190      */
 191     twocc = TWOCCFromFOURCC(mmck->ckid);
 192     if (twocc == TWOCCFromFOURCC(wma->inbih->biCompression))
 193         twocc = cktypeDIBcompressed;
 194
 195     switch (twocc) {
 196     case cktypeDIBbits:
 197     case cktypeDIBcompressed:
 198     case cktypePALchange:
 199         if (stream_n != wma->video_stream_n)
 200         {
 201             TRACE("data belongs to another video stream #%d\n", stream_n);
 202             return FALSE;
 203         }
 204
 205         TRACE("Adding video frame[%d]: %d bytes\n",
 206               alb->numVideoFrames, mmck->cksize);
 207
 208         if (alb->numVideoFrames < wma->dwPlayableVideoFrames) {
 209             wma->lpVideoIndex[alb->numVideoFrames].dwOffset = mmck->dwDataOffset;
 210             wma->lpVideoIndex[alb->numVideoFrames].dwSize = mmck->cksize;
 211             if (alb->inVideoSize < mmck->cksize)
 212                 alb->inVideoSize = mmck->cksize;
 213             alb->numVideoFrames++;
 214         } else {
 215             WARN("Too many video frames\n");
 216         }
 217         break;
 218     case cktypeWAVEbytes:
 219         if (stream_n != wma->audio_stream_n)
 220         {
 221             TRACE("data belongs to another audio stream #%d\n", stream_n);
 222             return FALSE;
 223         }
 224
 225         TRACE("Adding audio frame[%d]: %d bytes\n",
 226               alb->numAudioBlocks, mmck->cksize);
 227         if (wma->lpWaveFormat) {
 228             if (alb->numAudioBlocks >= alb->numAudioAllocated) {
 229                 alb->numAudioAllocated += 32;
 230                 if (!wma->lpAudioIndex)
 231                     wma->lpAudioIndex = HeapAlloc(GetProcessHeap(), 0,
 232                                                   alb->numAudioAllocated * sizeof(struct MMIOPos));
 233                 else
 234                     wma->lpAudioIndex = HeapReAlloc(GetProcessHeap(), 0, wma->lpAudioIndex,
 235                                                     alb->numAudioAllocated * sizeof(struct MMIOPos));
 236                 if (!wma->lpAudioIndex) return FALSE;
 237             }
 238             wma->lpAudioIndex[alb->numAudioBlocks].dwOffset = mmck->dwDataOffset;
 239             wma->lpAudioIndex[alb->numAudioBlocks].dwSize = mmck->cksize;
 240             if (alb->inAudioSize < mmck->cksize)
 241                 alb->inAudioSize = mmck->cksize;
 242             alb->numAudioBlocks++;
 243         } else {
 244             WARN("Wave chunk without wave format... discarding\n");
 245         }
 246         break;
 247     default:
 248         WARN("Unknown frame type %4.4s\n", (LPSTR)&mmck->ckid);
 249         break;
 250     }
 251     return TRUE;
 252 }
 253
 254 BOOL MCIAVI_GetInfo(WINE_MCIAVI* wma)
 255 {
 256     MMCKINFO            ckMainRIFF;
 257     MMCKINFO            mmckHead;
 258     MMCKINFO            mmckList;
 259     MMCKINFO            mmckInfo;
 260     AVIStreamHeader strh;
 261     struct AviListBuild alb;
 262     DWORD stream_n;
 263
 264     if (mmioDescend(wma->hFile, &ckMainRIFF, NULL, 0) != 0) {
 265         WARN("Can't find 'RIFF' chunk\n");
 266         return FALSE;
 267     }
 268
 269     if ((ckMainRIFF.ckid != FOURCC_RIFF) || (ckMainRIFF.fccType != formtypeAVI)) {
 270         WARN("Can't find 'AVI ' chunk\n");
 271         return FALSE;
 272     }
 273
 274     mmckHead.fccType = listtypeAVIHEADER;
 275     if (mmioDescend(wma->hFile, &mmckHead, &ckMainRIFF, MMIO_FINDLIST) != 0) {
 276         WARN("Can't find 'hdrl' list\n");
 277         return FALSE;
 278     }
 279
 280     mmckInfo.ckid = ckidAVIMAINHDR;
 281     if (mmioDescend(wma->hFile, &mmckInfo, &mmckHead, MMIO_FINDCHUNK) != 0) {
 282         WARN("Can't find 'avih' chunk\n");
 283         return FALSE;
 284     }
 285
 286     mmioRead(wma->hFile, (LPSTR)&wma->mah, sizeof(wma->mah));
 287
 288     TRACE("mah.dwMicroSecPerFrame=%d\n",        wma->mah.dwMicroSecPerFrame);
 289     TRACE("mah.dwMaxBytesPerSec=%d\n",  wma->mah.dwMaxBytesPerSec);
 290     TRACE("mah.dwPaddingGranularity=%d\n",      wma->mah.dwPaddingGranularity);
 291     TRACE("mah.dwFlags=%d\n",                   wma->mah.dwFlags);
 292     TRACE("mah.dwTotalFrames=%d\n",             wma->mah.dwTotalFrames);
 293     TRACE("mah.dwInitialFrames=%d\n",           wma->mah.dwInitialFrames);
 294     TRACE("mah.dwStreams=%d\n",                 wma->mah.dwStreams);
 295     TRACE("mah.dwSuggestedBufferSize=%d\n",     wma->mah.dwSuggestedBufferSize);
 296     TRACE("mah.dwWidth=%d\n",                   wma->mah.dwWidth);
 297     TRACE("mah.dwHeight=%d\n",          wma->mah.dwHeight);
 298
 299     mmioAscend(wma->hFile, &mmckInfo, 0);
 300
 301     TRACE("Start of streams\n");
 302     wma->video_stream_n = 0;
 303     wma->audio_stream_n = 0;
 304
 305     for (stream_n = 0; stream_n < wma->mah.dwStreams; stream_n++)
 306     {
 307         MMCKINFO mmckStream;
 308
 309         mmckList.fccType = listtypeSTREAMHEADER;
 310         if (mmioDescend(wma->hFile, &mmckList, &mmckHead, MMIO_FINDLIST) != 0)
 311             break;
 312
 313         mmckStream.ckid = ckidSTREAMHEADER;
 314         if (mmioDescend(wma->hFile, &mmckStream, &mmckList, MMIO_FINDCHUNK) != 0)
 315         {
 316             WARN("Can't find 'strh' chunk\n");
 317             continue;
 318         }
 319
 320         mmioRead(wma->hFile, (LPSTR)&strh, sizeof(strh));
 321
 322         TRACE("Stream #%d fccType %4.4s\n", stream_n, (LPSTR)&strh.fccType);
 323
 324         if (strh.fccType == streamtypeVIDEO)
 325         {
 326             TRACE("found video stream\n");
 327             if (wma->inbih)
 328                 WARN("ignoring another video stream\n");
 329             else
 330             {
 331                 wma->ash_video = strh;
 332
 333                 if (!MCIAVI_GetInfoVideo(wma, &mmckList, &mmckStream))
 334                     return FALSE;
 335                 wma->video_stream_n = stream_n;
 336                 wma->dwSet |= 4;
 337             }
 338         }
 339         else if (strh.fccType == streamtypeAUDIO)
 340         {
 341             TRACE("found audio stream\n");
 342             if (wma->lpWaveFormat)
 343                 WARN("ignoring another audio stream\n");
 344             else
 345             {
 346                 wma->ash_audio = strh;
 347
 348                 if (!MCIAVI_GetInfoAudio(wma, &mmckList, &mmckStream))
 349                     return FALSE;
 350                 wma->audio_stream_n = stream_n;
 351                 wma->dwSet |= 3;
 352             }
 353         }
 354         else
 355             TRACE("Unsupported stream type %4.4s\n", (LPSTR)&strh.fccType);
 356
 357         mmioAscend(wma->hFile, &mmckList, 0);
 358     }
 359
 360     TRACE("End of streams\n");
 361
 362     mmioAscend(wma->hFile, &mmckHead, 0);
 363
 364     /* no need to read optional JUNK chunk */
 365
 366     mmckList.fccType = listtypeAVIMOVIE;
 367     if (mmioDescend(wma->hFile, &mmckList, &ckMainRIFF, MMIO_FINDLIST) != 0) {
 368         WARN("Can't find 'movi' list\n");
 369         return FALSE;
 370     }
 371
 372     wma->dwPlayableVideoFrames = wma->mah.dwTotalFrames;
 373     wma->lpVideoIndex = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
 374                                   wma->dwPlayableVideoFrames * sizeof(struct MMIOPos));
 375     if (!wma->lpVideoIndex) {
 376         WARN("Can't alloc video index array\n");
 377         return FALSE;
 378     }
 379     wma->dwPlayableAudioBlocks = 0;
 380     wma->lpAudioIndex = NULL;
 381
 382     alb.numAudioBlocks = alb.numVideoFrames = 0;
 383     alb.inVideoSize = alb.inAudioSize = 0;
 384     alb.numAudioAllocated = 0;
 385
 386     while (mmioDescend(wma->hFile, &mmckInfo, &mmckList, 0) == 0) {
 387         if (mmckInfo.fccType == listtypeAVIRECORD) {
 388             MMCKINFO    tmp;
 389
 390             while (mmioDescend(wma->hFile, &tmp, &mmckInfo, 0) == 0) {
 391                 MCIAVI_AddFrame(wma, &tmp, &alb);
 392                 mmioAscend(wma->hFile, &tmp, 0);
 393             }
 394         } else {
 395             MCIAVI_AddFrame(wma, &mmckInfo, &alb);
 396         }
 397
 398         mmioAscend(wma->hFile, &mmckInfo, 0);
 399     }
 400     if (alb.numVideoFrames != wma->dwPlayableVideoFrames) {
 401         WARN("Found %d video frames (/%d), reducing playable frames\n",
 402              alb.numVideoFrames, wma->dwPlayableVideoFrames);
 403         wma->dwPlayableVideoFrames = alb.numVideoFrames;
 404     }
 405     wma->dwPlayableAudioBlocks = alb.numAudioBlocks;
 406
 407     if (alb.inVideoSize > wma->ash_video.dwSuggestedBufferSize) {
 408         WARN("inVideoSize=%d suggestedSize=%d\n", alb.inVideoSize, wma->ash_video.dwSuggestedBufferSize);
 409         wma->ash_video.dwSuggestedBufferSize = alb.inVideoSize;
 410     }
 411     if (alb.inAudioSize > wma->ash_audio.dwSuggestedBufferSize) {
 412         WARN("inAudioSize=%d suggestedSize=%d\n", alb.inAudioSize, wma->ash_audio.dwSuggestedBufferSize);
 413         wma->ash_audio.dwSuggestedBufferSize = alb.inAudioSize;
 414     }
 415
 416     wma->indata = HeapAlloc(GetProcessHeap(), 0, wma->ash_video.dwSuggestedBufferSize);
 417     if (!wma->indata) {
 418         WARN("Can't alloc input buffer\n");
 419         return FALSE;
 420     }
 421
 422     return TRUE;
 423 }
 424
 425 BOOL    MCIAVI_OpenVideo(WINE_MCIAVI* wma)
 426 {
 427     HDC hDC;
 428     DWORD       outSize;
 429     FOURCC      fcc = wma->ash_video.fccHandler;
 430
 431     TRACE("fcc %4.4s\n", (LPSTR)&fcc);
 432
 433     wma->dwCachedFrame = -1;
 434
 435     /* get the right handle */
 436     if (fcc == mmioFOURCC('C','R','A','M')) fcc = mmioFOURCC('M','S','V','C');
 437
 438     /* try to get a decompressor for that type */
 439     wma->hic = ICLocate(ICTYPE_VIDEO, fcc, wma->inbih, NULL, ICMODE_DECOMPRESS);
 440     if (!wma->hic) {
 441         /* check for builtin DIB compressions */
 442         fcc = wma->inbih->biCompression;
 443         if ((fcc == mmioFOURCC('D','I','B',' ')) ||
 444             (fcc == mmioFOURCC('R','L','E',' ')) ||
 445             (fcc == BI_RGB) || (fcc == BI_RLE8) ||
 446             (fcc == BI_RLE4) || (fcc == BI_BITFIELDS))
 447             goto paint_frame;
 448
 449         WARN("Can't locate codec for the file\n");
 450         return FALSE;
 451     }
 452
 453     outSize = sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD);
 454
 455     wma->outbih = HeapAlloc(GetProcessHeap(), 0, outSize);
 456     if (!wma->outbih) {
 457         WARN("Can't alloc output BIH\n");
 458         return FALSE;
 459     }
 460     if (!ICGetDisplayFormat(wma->hic, wma->inbih, wma->outbih, 0, 0, 0)) {
 461         WARN("Can't open decompressor\n");
 462         return FALSE;
 463     }
 464
 465     TRACE("bih.biSize=%d\n",            wma->outbih->biSize);
 466     TRACE("bih.biWidth=%d\n",           wma->outbih->biWidth);
 467     TRACE("bih.biHeight=%d\n",  wma->outbih->biHeight);
 468     TRACE("bih.biPlanes=%d\n",          wma->outbih->biPlanes);
 469     TRACE("bih.biBitCount=%d\n",        wma->outbih->biBitCount);
 470     TRACE("bih.biCompression=%x\n",     wma->outbih->biCompression);
 471     TRACE("bih.biSizeImage=%d\n",       wma->outbih->biSizeImage);
 472     TRACE("bih.biXPelsPerMeter=%d\n",   wma->outbih->biXPelsPerMeter);
 473     TRACE("bih.biYPelsPerMeter=%d\n",   wma->outbih->biYPelsPerMeter);
 474     TRACE("bih.biClrUsed=%d\n",         wma->outbih->biClrUsed);
 475     TRACE("bih.biClrImportant=%d\n",    wma->outbih->biClrImportant);
 476
 477     wma->outdata = HeapAlloc(GetProcessHeap(), 0, wma->outbih->biSizeImage);
 478     if (!wma->outdata) {
 479         WARN("Can't alloc output buffer\n");
 480         return FALSE;
 481     }
 482
 483     if (ICSendMessage(wma->hic, ICM_DECOMPRESS_BEGIN,
 484                       (DWORD_PTR)wma->inbih, (DWORD_PTR)wma->outbih) != ICERR_OK) {
 485         WARN("Can't begin decompression\n");
 486         return FALSE;
 487     }
 488
 489 paint_frame:
 490     hDC = wma->hWndPaint ? GetDC(wma->hWndPaint) : 0;
 491     if (hDC)
 492     {
 493         MCIAVI_PaintFrame(wma, hDC);
 494         ReleaseDC(wma->hWndPaint, hDC);
 495     }
 496     return TRUE;
 497 }
 498
 499 static void CALLBACK MCIAVI_waveCallback(HWAVEOUT hwo, UINT uMsg, DWORD_PTR dwInstance,
 500                                         DWORD_PTR dwParam1, DWORD_PTR dwParam2)
 501 {
 502     WINE_MCIAVI *wma = MCIAVI_mciGetOpenDev(dwInstance);
 503
 504     if (!wma) return;
 505
 506     EnterCriticalSection(&wma->cs);
 507
 508     switch (uMsg) {
 509     case WOM_OPEN:
 510     case WOM_CLOSE:
 511         break;
 512     case WOM_DONE:
 513         InterlockedIncrement(&wma->dwEventCount);
 514         TRACE("Returning waveHdr=%lx\n", dwParam1);
 515         SetEvent(wma->hEvent);
 516         break;
 517     default:
 518         ERR("Unknown uMsg=%d\n", uMsg);
 519     }
 520
 521     LeaveCriticalSection(&wma->cs);
 522 }
 523
 524 DWORD MCIAVI_OpenAudio(WINE_MCIAVI* wma, unsigned* nHdr, LPWAVEHDR* pWaveHdr)
 525 {
 526     DWORD       dwRet;
 527     LPWAVEHDR   waveHdr;
 528     unsigned    i;
 529
 530     dwRet = waveOutOpen((HWAVEOUT *)&wma->hWave, WAVE_MAPPER, wma->lpWaveFormat,
 531                        (DWORD_PTR)MCIAVI_waveCallback, wma->wDevID, CALLBACK_FUNCTION);
 532     if (dwRet != 0) {
 533         TRACE("Can't open low level audio device %d\n", dwRet);
 534         dwRet = MCIERR_DEVICE_OPEN;
 535         wma->hWave = 0;
 536         goto cleanUp;
 537     }
 538
 539     /* FIXME: should set up a heuristic to compute the number of wave headers
 540      * to be used...
 541      */
 542     *nHdr = 7;
 543     waveHdr = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
 544                         *nHdr * (sizeof(WAVEHDR) + wma->ash_audio.dwSuggestedBufferSize));
 545     if (!waveHdr) {
 546         TRACE("Can't alloc wave headers\n");
 547         dwRet = MCIERR_DEVICE_OPEN;
 548         goto cleanUp;
 549     }
 550
 551     for (i = 0; i < *nHdr; i++) {
 552         /* other fields are zero:ed on allocation */
 553         waveHdr[i].lpData = (char*)waveHdr +
 554             *nHdr * sizeof(WAVEHDR) + i * wma->ash_audio.dwSuggestedBufferSize;
 555         waveHdr[i].dwBufferLength = wma->ash_audio.dwSuggestedBufferSize;
 556         if (waveOutPrepareHeader(wma->hWave, &waveHdr[i], sizeof(WAVEHDR))) {
 557             dwRet = MCIERR_INTERNAL;
 558             goto cleanUp;
 559         }
 560     }
 561
 562     if (wma->dwCurrVideoFrame != 0 && wma->lpWaveFormat) {
 563         FIXME("Should recompute dwCurrAudioBlock, except unsynchronized sound & video\n");
 564     }
 565     wma->dwCurrAudioBlock = 0;
 566
 567     wma->hEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
 568     wma->dwEventCount = *nHdr - 1;
 569     *pWaveHdr = waveHdr;
 570  cleanUp:
 571     return dwRet;
 572 }
 573
 574 void MCIAVI_PlayAudioBlocks(WINE_MCIAVI* wma, unsigned nHdr, LPWAVEHDR waveHdr)
 575 {
 576     if (!wma->lpAudioIndex)
 577         return;
 578     TRACE("%d (ec=%u)\n", wma->lpAudioIndex[wma->dwCurrAudioBlock].dwOffset, wma->dwEventCount);
 579
 580     /* push as many blocks as possible => audio gets priority */
 581     while (wma->dwStatus != MCI_MODE_STOP && wma->dwStatus != MCI_MODE_NOT_READY &&
 582            wma->dwCurrAudioBlock < wma->dwPlayableAudioBlocks) {
 583         unsigned        whidx = wma->dwCurrAudioBlock % nHdr;
 584
 585         ResetEvent(wma->hEvent);
 586         if (InterlockedDecrement(&wma->dwEventCount) < 0 ||
 587             !wma->lpAudioIndex[wma->dwCurrAudioBlock].dwOffset)
 588         {
 589             InterlockedIncrement(&wma->dwEventCount);
 590             break;
 591         }
 592
 593         mmioSeek(wma->hFile, wma->lpAudioIndex[wma->dwCurrAudioBlock].dwOffset, SEEK_SET);
 594         mmioRead(wma->hFile, waveHdr[whidx].lpData, wma->lpAudioIndex[wma->dwCurrAudioBlock].dwSize);
 595
 596         waveHdr[whidx].dwFlags &= ~WHDR_DONE;
 597         waveHdr[whidx].dwBufferLength = wma->lpAudioIndex[wma->dwCurrAudioBlock].dwSize;
 598         waveOutWrite(wma->hWave, &waveHdr[whidx], sizeof(WAVEHDR));
 599         wma->dwCurrAudioBlock++;
 600     }
 601 }
 602
 603 double MCIAVI_PaintFrame(WINE_MCIAVI* wma, HDC hDC)
 604 {
 605     void*               pBitmapData;
 606     LPBITMAPINFO        pBitmapInfo;
 607
 608     if (!hDC || !wma->inbih)
 609         return 0;
 610
 611     TRACE("Painting frame %u (cached %u)\n", wma->dwCurrVideoFrame, wma->dwCachedFrame);
 612
 613     if (wma->dwCurrVideoFrame != wma->dwCachedFrame)
 614     {
 615         if (!wma->lpVideoIndex[wma->dwCurrVideoFrame].dwOffset)
 616             return 0;
 617
 618         if (wma->lpVideoIndex[wma->dwCurrVideoFrame].dwSize)
 619         {
 620             mmioSeek(wma->hFile, wma->lpVideoIndex[wma->dwCurrVideoFrame].dwOffset, SEEK_SET);
 621             mmioRead(wma->hFile, wma->indata, wma->lpVideoIndex[wma->dwCurrVideoFrame].dwSize);
 622
 623             wma->inbih->biSizeImage = wma->lpVideoIndex[wma->dwCurrVideoFrame].dwSize;
 624
 625             if (wma->hic && ICDecompress(wma->hic, 0, wma->inbih, wma->indata,
 626                                          wma->outbih, wma->outdata) != ICERR_OK)
 627             {
 628                 WARN("Decompression error\n");
 629                 return 0;
 630             }
 631         }
 632
 633         wma->dwCachedFrame = wma->dwCurrVideoFrame;
 634     }
 635
 636     if (wma->hic) {
 637         pBitmapData = wma->outdata;
 638         pBitmapInfo = (LPBITMAPINFO)wma->outbih;
 639     } else {
 640         pBitmapData = wma->indata;
 641         pBitmapInfo = (LPBITMAPINFO)wma->inbih;
 642     }
 643
 644     StretchDIBits(hDC,
 645                   wma->dest.left, wma->dest.top,
 646                   wma->dest.right - wma->dest.left, wma->dest.bottom - wma->dest.top,
 647                   wma->source.left, wma->source.top,
 648                   wma->source.right - wma->source.left, wma->source.bottom - wma->source.top,
 649                   pBitmapData, pBitmapInfo, DIB_RGB_COLORS, SRCCOPY);
 650
 651     return (wma->ash_video.dwScale / (double)wma->ash_video.dwRate) * 1000000;
 652 }