git.oblomov.eu Git - wine/blob - 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_audio = strh;
 332
 333                 if (!MCIAVI_GetInfoVideo(wma, &mmckList, &mmckStream))
 334                     return FALSE;
 335                 wma->video_stream_n = stream_n;
 336             }
 337         }
 338         else if (strh.fccType == streamtypeAUDIO)
 339         {
 340             TRACE("found audio stream\n");
 341             if (wma->lpWaveFormat)
 342                 WARN("ignoring another audio stream\n");
 343             else
 344             {
 345                 wma->ash_video = strh;
 346
 347                 if (!MCIAVI_GetInfoAudio(wma, &mmckList, &mmckStream))
 348                     return FALSE;
 349                 wma->audio_stream_n = stream_n;
 350             }
 351         }
 352         else
 353             TRACE("Unsupported stream type %4.4s\n", (LPSTR)&strh.fccType);
 354
 355         mmioAscend(wma->hFile, &mmckList, 0);
 356     }
 357
 358     TRACE("End of streams\n");
 359
 360     mmioAscend(wma->hFile, &mmckHead, 0);
 361
 362     /* no need to read optional JUNK chunk */
 363
 364     mmckList.fccType = listtypeAVIMOVIE;
 365     if (mmioDescend(wma->hFile, &mmckList, &ckMainRIFF, MMIO_FINDLIST) != 0) {
 366         WARN("Can't find 'movi' list\n");
 367         return FALSE;
 368     }
 369
 370     wma->dwPlayableVideoFrames = wma->mah.dwTotalFrames;
 371     wma->lpVideoIndex = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
 372                                   wma->dwPlayableVideoFrames * sizeof(struct MMIOPos));
 373     if (!wma->lpVideoIndex) {
 374         WARN("Can't alloc video index array\n");
 375         return FALSE;
 376     }
 377     wma->dwPlayableAudioBlocks = 0;
 378     wma->lpAudioIndex = NULL;
 379
 380     alb.numAudioBlocks = alb.numVideoFrames = 0;
 381     alb.inVideoSize = alb.inAudioSize = 0;
 382     alb.numAudioAllocated = 0;
 383
 384     while (mmioDescend(wma->hFile, &mmckInfo, &mmckList, 0) == 0) {
 385         if (mmckInfo.fccType == listtypeAVIRECORD) {
 386             MMCKINFO    tmp;
 387
 388             while (mmioDescend(wma->hFile, &tmp, &mmckInfo, 0) == 0) {
 389                 MCIAVI_AddFrame(wma, &tmp, &alb);
 390                 mmioAscend(wma->hFile, &tmp, 0);
 391             }
 392         } else {
 393             MCIAVI_AddFrame(wma, &mmckInfo, &alb);
 394         }
 395
 396         mmioAscend(wma->hFile, &mmckInfo, 0);
 397     }
 398     if (alb.numVideoFrames != wma->dwPlayableVideoFrames) {
 399         WARN("Found %d video frames (/%d), reducing playable frames\n",
 400              alb.numVideoFrames, wma->dwPlayableVideoFrames);
 401         wma->dwPlayableVideoFrames = alb.numVideoFrames;
 402     }
 403     wma->dwPlayableAudioBlocks = alb.numAudioBlocks;
 404
 405     if (alb.inVideoSize > wma->ash_video.dwSuggestedBufferSize) {
 406         WARN("inVideoSize=%d suggestedSize=%d\n", alb.inVideoSize, wma->ash_video.dwSuggestedBufferSize);
 407         wma->ash_video.dwSuggestedBufferSize = alb.inVideoSize;
 408     }
 409     if (alb.inAudioSize > wma->ash_audio.dwSuggestedBufferSize) {
 410         WARN("inAudioSize=%d suggestedSize=%d\n", alb.inAudioSize, wma->ash_audio.dwSuggestedBufferSize);
 411         wma->ash_audio.dwSuggestedBufferSize = alb.inAudioSize;
 412     }
 413
 414     wma->indata = HeapAlloc(GetProcessHeap(), 0, wma->ash_video.dwSuggestedBufferSize);
 415     if (!wma->indata) {
 416         WARN("Can't alloc input buffer\n");
 417         return FALSE;
 418     }
 419
 420     return TRUE;
 421 }
 422
 423 BOOL    MCIAVI_OpenVideo(WINE_MCIAVI* wma)
 424 {
 425     HDC hDC;
 426     DWORD       outSize;
 427     FOURCC      fcc = wma->ash_video.fccHandler;
 428
 429     TRACE("fcc %4.4s\n", (LPSTR)&fcc);
 430
 431     wma->dwCachedFrame = -1;
 432
 433     /* get the right handle */
 434     if (fcc == mmioFOURCC('C','R','A','M')) fcc = mmioFOURCC('M','S','V','C');
 435
 436     /* try to get a decompressor for that type */
 437     wma->hic = ICLocate(ICTYPE_VIDEO, fcc, wma->inbih, NULL, ICMODE_DECOMPRESS);
 438     if (!wma->hic) {
 439         /* check for builtin DIB compressions */
 440         fcc = wma->inbih->biCompression;
 441         if ((fcc == mmioFOURCC('D','I','B',' ')) ||
 442             (fcc == mmioFOURCC('R','L','E',' ')) ||
 443             (fcc == BI_RGB) || (fcc == BI_RLE8) ||
 444             (fcc == BI_RLE4) || (fcc == BI_BITFIELDS))
 445             goto paint_frame;
 446
 447         WARN("Can't locate codec for the file\n");
 448         return FALSE;
 449     }
 450
 451     outSize = sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD);
 452
 453     wma->outbih = HeapAlloc(GetProcessHeap(), 0, outSize);
 454     if (!wma->outbih) {
 455         WARN("Can't alloc output BIH\n");
 456         return FALSE;
 457     }
 458     if (!ICGetDisplayFormat(wma->hic, wma->inbih, wma->outbih, 0, 0, 0)) {
 459         WARN("Can't open decompressor\n");
 460         return FALSE;
 461     }
 462
 463     TRACE("bih.biSize=%d\n",            wma->outbih->biSize);
 464     TRACE("bih.biWidth=%d\n",           wma->outbih->biWidth);
 465     TRACE("bih.biHeight=%d\n",  wma->outbih->biHeight);
 466     TRACE("bih.biPlanes=%d\n",          wma->outbih->biPlanes);
 467     TRACE("bih.biBitCount=%d\n",        wma->outbih->biBitCount);
 468     TRACE("bih.biCompression=%x\n",     wma->outbih->biCompression);
 469     TRACE("bih.biSizeImage=%d\n",       wma->outbih->biSizeImage);
 470     TRACE("bih.biXPelsPerMeter=%d\n",   wma->outbih->biXPelsPerMeter);
 471     TRACE("bih.biYPelsPerMeter=%d\n",   wma->outbih->biYPelsPerMeter);
 472     TRACE("bih.biClrUsed=%d\n",         wma->outbih->biClrUsed);
 473     TRACE("bih.biClrImportant=%d\n",    wma->outbih->biClrImportant);
 474
 475     wma->outdata = HeapAlloc(GetProcessHeap(), 0, wma->outbih->biSizeImage);
 476     if (!wma->outdata) {
 477         WARN("Can't alloc output buffer\n");
 478         return FALSE;
 479     }
 480
 481     if (ICSendMessage(wma->hic, ICM_DECOMPRESS_BEGIN,
 482                       (DWORD_PTR)wma->inbih, (DWORD_PTR)wma->outbih) != ICERR_OK) {
 483         WARN("Can't begin decompression\n");
 484         return FALSE;
 485     }
 486
 487 paint_frame:
 488     hDC = wma->hWndPaint ? GetDC(wma->hWndPaint) : 0;
 489     if (hDC)
 490     {
 491         MCIAVI_PaintFrame(wma, hDC);
 492         ReleaseDC(wma->hWndPaint, hDC);
 493     }
 494     return TRUE;
 495 }
 496
 497 static void CALLBACK MCIAVI_waveCallback(HWAVEOUT hwo, UINT uMsg, DWORD_PTR dwInstance,
 498                                         DWORD_PTR dwParam1, DWORD_PTR dwParam2)
 499 {
 500     WINE_MCIAVI *wma = MCIAVI_mciGetOpenDev(dwInstance);
 501
 502     if (!wma) return;
 503
 504     EnterCriticalSection(&wma->cs);
 505
 506     switch (uMsg) {
 507     case WOM_OPEN:
 508     case WOM_CLOSE:
 509         break;
 510     case WOM_DONE:
 511         InterlockedIncrement(&wma->dwEventCount);
 512         TRACE("Returning waveHdr=%lx\n", dwParam1);
 513         SetEvent(wma->hEvent);
 514         break;
 515     default:
 516         ERR("Unknown uMsg=%d\n", uMsg);
 517     }
 518
 519     LeaveCriticalSection(&wma->cs);
 520 }
 521
 522 DWORD MCIAVI_OpenAudio(WINE_MCIAVI* wma, unsigned* nHdr, LPWAVEHDR* pWaveHdr)
 523 {
 524     DWORD       dwRet;
 525     LPWAVEHDR   waveHdr;
 526     unsigned    i;
 527
 528     dwRet = waveOutOpen((HWAVEOUT *)&wma->hWave, WAVE_MAPPER, wma->lpWaveFormat,
 529                        (DWORD_PTR)MCIAVI_waveCallback, wma->wDevID, CALLBACK_FUNCTION);
 530     if (dwRet != 0) {
 531         TRACE("Can't open low level audio device %d\n", dwRet);
 532         dwRet = MCIERR_DEVICE_OPEN;
 533         wma->hWave = 0;
 534         goto cleanUp;
 535     }
 536
 537     /* FIXME: should set up a heuristic to compute the number of wave headers
 538      * to be used...
 539      */
 540     *nHdr = 7;
 541     waveHdr = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
 542                         *nHdr * (sizeof(WAVEHDR) + wma->ash_audio.dwSuggestedBufferSize));
 543     if (!waveHdr) {
 544         TRACE("Can't alloc wave headers\n");
 545         dwRet = MCIERR_DEVICE_OPEN;
 546         goto cleanUp;
 547     }
 548
 549     for (i = 0; i < *nHdr; i++) {
 550         /* other fields are zero:ed on allocation */
 551         waveHdr[i].lpData = (char*)waveHdr +
 552             *nHdr * sizeof(WAVEHDR) + i * wma->ash_audio.dwSuggestedBufferSize;
 553         waveHdr[i].dwBufferLength = wma->ash_audio.dwSuggestedBufferSize;
 554         if (waveOutPrepareHeader(wma->hWave, &waveHdr[i], sizeof(WAVEHDR))) {
 555             dwRet = MCIERR_INTERNAL;
 556             goto cleanUp;
 557         }
 558     }
 559
 560     if (wma->dwCurrVideoFrame != 0 && wma->lpWaveFormat) {
 561         FIXME("Should recompute dwCurrAudioBlock, except unsynchronized sound & video\n");
 562     }
 563     wma->dwCurrAudioBlock = 0;
 564
 565     wma->hEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
 566     wma->dwEventCount = *nHdr - 1;
 567     *pWaveHdr = waveHdr;
 568  cleanUp:
 569     return dwRet;
 570 }
 571
 572 void MCIAVI_PlayAudioBlocks(WINE_MCIAVI* wma, unsigned nHdr, LPWAVEHDR waveHdr)
 573 {
 574     if (!wma->lpAudioIndex)
 575         return;
 576     TRACE("%d (ec=%u)\n", wma->lpAudioIndex[wma->dwCurrAudioBlock].dwOffset, wma->dwEventCount);
 577
 578     /* push as many blocks as possible => audio gets priority */
 579     while (wma->dwStatus != MCI_MODE_STOP && wma->dwStatus != MCI_MODE_NOT_READY &&
 580            wma->dwCurrAudioBlock < wma->dwPlayableAudioBlocks) {
 581         unsigned        whidx = wma->dwCurrAudioBlock % nHdr;
 582
 583         ResetEvent(wma->hEvent);
 584         if (InterlockedDecrement(&wma->dwEventCount) < 0 ||
 585             !wma->lpAudioIndex[wma->dwCurrAudioBlock].dwOffset)
 586         {
 587             InterlockedIncrement(&wma->dwEventCount);
 588             break;
 589         }
 590
 591         mmioSeek(wma->hFile, wma->lpAudioIndex[wma->dwCurrAudioBlock].dwOffset, SEEK_SET);
 592         mmioRead(wma->hFile, waveHdr[whidx].lpData, wma->lpAudioIndex[wma->dwCurrAudioBlock].dwSize);
 593
 594         waveHdr[whidx].dwFlags &= ~WHDR_DONE;
 595         waveHdr[whidx].dwBufferLength = wma->lpAudioIndex[wma->dwCurrAudioBlock].dwSize;
 596         waveOutWrite(wma->hWave, &waveHdr[whidx], sizeof(WAVEHDR));
 597         wma->dwCurrAudioBlock++;
 598     }
 599 }
 600
 601 LRESULT MCIAVI_PaintFrame(WINE_MCIAVI* wma, HDC hDC)
 602 {
 603     void*               pBitmapData;
 604     LPBITMAPINFO        pBitmapInfo;
 605
 606     if (!hDC || !wma->inbih)
 607         return TRUE;
 608
 609     TRACE("Painting frame %u (cached %u)\n", wma->dwCurrVideoFrame, wma->dwCachedFrame);
 610
 611     if (wma->dwCurrVideoFrame != wma->dwCachedFrame)
 612     {
 613         if (!wma->lpVideoIndex[wma->dwCurrVideoFrame].dwOffset)
 614             return FALSE;
 615
 616         if (wma->lpVideoIndex[wma->dwCurrVideoFrame].dwSize)
 617         {
 618             mmioSeek(wma->hFile, wma->lpVideoIndex[wma->dwCurrVideoFrame].dwOffset, SEEK_SET);
 619             mmioRead(wma->hFile, wma->indata, wma->lpVideoIndex[wma->dwCurrVideoFrame].dwSize);
 620
 621             wma->inbih->biSizeImage = wma->lpVideoIndex[wma->dwCurrVideoFrame].dwSize;
 622
 623             if (wma->hic && ICDecompress(wma->hic, 0, wma->inbih, wma->indata,
 624                                          wma->outbih, wma->outdata) != ICERR_OK)
 625             {
 626                 WARN("Decompression error\n");
 627                 return FALSE;
 628             }
 629         }
 630
 631         wma->dwCachedFrame = wma->dwCurrVideoFrame;
 632     }
 633
 634     if (wma->hic) {
 635         pBitmapData = wma->outdata;
 636         pBitmapInfo = (LPBITMAPINFO)wma->outbih;
 637     } else {
 638         pBitmapData = wma->indata;
 639         pBitmapInfo = (LPBITMAPINFO)wma->inbih;
 640     }
 641
 642     StretchDIBits(hDC,
 643                   wma->dest.left, wma->dest.top,
 644                   wma->dest.right - wma->dest.left, wma->dest.bottom - wma->dest.top,
 645                   wma->source.left, wma->source.top,
 646                   wma->source.right - wma->source.left, wma->source.bottom - wma->source.top,
 647                   pBitmapData, pBitmapInfo, DIB_RGB_COLORS, SRCCOPY);
 648
 649     return TRUE;
 650 }