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     mmioRead(wma->hFile, (LPSTR)&wma->ash_audio, sizeof(wma->ash_audio));
  32
  33     TRACE("ash.fccType='%c%c%c%c'\n",           LOBYTE(LOWORD(wma->ash_audio.fccType)),
  34                                                 HIBYTE(LOWORD(wma->ash_audio.fccType)),
  35                                                 LOBYTE(HIWORD(wma->ash_audio.fccType)),
  36                                                 HIBYTE(HIWORD(wma->ash_audio.fccType)));
  37     if (wma->ash_audio.fccHandler) /* not all streams specify a handler */
  38         TRACE("ash.fccHandler='%c%c%c%c'\n",    LOBYTE(LOWORD(wma->ash_audio.fccHandler)),
  39                                                 HIBYTE(LOWORD(wma->ash_audio.fccHandler)),
  40                                                 LOBYTE(HIWORD(wma->ash_audio.fccHandler)),
  41                                                 HIBYTE(HIWORD(wma->ash_audio.fccHandler)));
  42     else
  43         TRACE("ash.fccHandler=0, no handler specified\n");
  44     TRACE("ash.dwFlags=%d\n",                   wma->ash_audio.dwFlags);
  45     TRACE("ash.wPriority=%d\n",                 wma->ash_audio.wPriority);
  46     TRACE("ash.wLanguage=%d\n",                 wma->ash_audio.wLanguage);
  47     TRACE("ash.dwInitialFrames=%d\n",           wma->ash_audio.dwInitialFrames);
  48     TRACE("ash.dwScale=%d\n",                   wma->ash_audio.dwScale);
  49     TRACE("ash.dwRate=%d\n",                    wma->ash_audio.dwRate);
  50     TRACE("ash.dwStart=%d\n",                   wma->ash_audio.dwStart);
  51     TRACE("ash.dwLength=%d\n",          wma->ash_audio.dwLength);
  52     TRACE("ash.dwSuggestedBufferSize=%d\n",     wma->ash_audio.dwSuggestedBufferSize);
  53     TRACE("ash.dwQuality=%d\n",                 wma->ash_audio.dwQuality);
  54     TRACE("ash.dwSampleSize=%d\n",              wma->ash_audio.dwSampleSize);
  55     TRACE("ash.rcFrame=(%d,%d,%d,%d)\n",        wma->ash_audio.rcFrame.top, wma->ash_audio.rcFrame.left,
  56           wma->ash_audio.rcFrame.bottom, wma->ash_audio.rcFrame.right);
  57
  58     /* rewind to the start of the stream */
  59     mmioAscend(wma->hFile, mmckStream, 0);
  60
  61     mmckInfo.ckid = ckidSTREAMFORMAT;
  62     if (mmioDescend(wma->hFile, &mmckInfo, mmckList, MMIO_FINDCHUNK) != 0) {
  63        WARN("Can't find 'strf' chunk\n");
  64         return FALSE;
  65     }
  66     if (mmckInfo.cksize < sizeof(WAVEFORMAT)) {
  67         WARN("Size of strf chunk (%d) < audio format struct\n", mmckInfo.cksize);
  68         return FALSE;
  69     }
  70     wma->lpWaveFormat = HeapAlloc(GetProcessHeap(), 0, mmckInfo.cksize);
  71     if (!wma->lpWaveFormat) {
  72         WARN("Can't alloc WaveFormat\n");
  73         return FALSE;
  74     }
  75
  76     mmioRead(wma->hFile, (LPSTR)wma->lpWaveFormat, mmckInfo.cksize);
  77
  78     TRACE("waveFormat.wFormatTag=%d\n",         wma->lpWaveFormat->wFormatTag);
  79     TRACE("waveFormat.nChannels=%d\n",          wma->lpWaveFormat->nChannels);
  80     TRACE("waveFormat.nSamplesPerSec=%d\n",     wma->lpWaveFormat->nSamplesPerSec);
  81     TRACE("waveFormat.nAvgBytesPerSec=%d\n",    wma->lpWaveFormat->nAvgBytesPerSec);
  82     TRACE("waveFormat.nBlockAlign=%d\n",        wma->lpWaveFormat->nBlockAlign);
  83     TRACE("waveFormat.wBitsPerSample=%d\n",     wma->lpWaveFormat->wBitsPerSample);
  84     if (mmckInfo.cksize >= sizeof(WAVEFORMATEX))
  85         TRACE("waveFormat.cbSize=%d\n",                 wma->lpWaveFormat->cbSize);
  86
  87     return TRUE;
  88 }
  89
  90 static BOOL MCIAVI_GetInfoVideo(WINE_MCIAVI* wma, const MMCKINFO* mmckList, MMCKINFO* mmckStream)
  91 {
  92     MMCKINFO    mmckInfo;
  93
  94     mmioRead(wma->hFile, (LPSTR)&wma->ash_video, sizeof(wma->ash_video));
  95
  96     TRACE("ash.fccType='%c%c%c%c'\n",           LOBYTE(LOWORD(wma->ash_video.fccType)),
  97                                                 HIBYTE(LOWORD(wma->ash_video.fccType)),
  98                                                 LOBYTE(HIWORD(wma->ash_video.fccType)),
  99                                                 HIBYTE(HIWORD(wma->ash_video.fccType)));
 100     TRACE("ash.fccHandler='%c%c%c%c'\n",        LOBYTE(LOWORD(wma->ash_video.fccHandler)),
 101                                                 HIBYTE(LOWORD(wma->ash_video.fccHandler)),
 102                                                 LOBYTE(HIWORD(wma->ash_video.fccHandler)),
 103                                                 HIBYTE(HIWORD(wma->ash_video.fccHandler)));
 104     TRACE("ash.dwFlags=%d\n",                   wma->ash_video.dwFlags);
 105     TRACE("ash.wPriority=%d\n",                 wma->ash_video.wPriority);
 106     TRACE("ash.wLanguage=%d\n",                 wma->ash_video.wLanguage);
 107     TRACE("ash.dwInitialFrames=%d\n",           wma->ash_video.dwInitialFrames);
 108     TRACE("ash.dwScale=%d\n",                   wma->ash_video.dwScale);
 109     TRACE("ash.dwRate=%d\n",                    wma->ash_video.dwRate);
 110     TRACE("ash.dwStart=%d\n",                   wma->ash_video.dwStart);
 111     TRACE("ash.dwLength=%d\n",          wma->ash_video.dwLength);
 112     TRACE("ash.dwSuggestedBufferSize=%d\n",     wma->ash_video.dwSuggestedBufferSize);
 113     TRACE("ash.dwQuality=%d\n",                 wma->ash_video.dwQuality);
 114     TRACE("ash.dwSampleSize=%d\n",              wma->ash_video.dwSampleSize);
 115     TRACE("ash.rcFrame=(%d,%d,%d,%d)\n",        wma->ash_video.rcFrame.top, wma->ash_video.rcFrame.left,
 116           wma->ash_video.rcFrame.bottom, wma->ash_video.rcFrame.right);
 117
 118     /* rewind to the start of the stream */
 119     mmioAscend(wma->hFile, mmckStream, 0);
 120
 121     mmckInfo.ckid = ckidSTREAMFORMAT;
 122     if (mmioDescend(wma->hFile, &mmckInfo, mmckList, MMIO_FINDCHUNK) != 0) {
 123        WARN("Can't find 'strf' chunk\n");
 124         return FALSE;
 125     }
 126
 127     wma->inbih = HeapAlloc(GetProcessHeap(), 0, mmckInfo.cksize);
 128     if (!wma->inbih) {
 129         WARN("Can't alloc input BIH\n");
 130         return FALSE;
 131     }
 132
 133     mmioRead(wma->hFile, (LPSTR)wma->inbih, mmckInfo.cksize);
 134
 135     TRACE("bih.biSize=%d\n",            wma->inbih->biSize);
 136     TRACE("bih.biWidth=%d\n",           wma->inbih->biWidth);
 137     TRACE("bih.biHeight=%d\n",  wma->inbih->biHeight);
 138     TRACE("bih.biPlanes=%d\n",          wma->inbih->biPlanes);
 139     TRACE("bih.biBitCount=%d\n",        wma->inbih->biBitCount);
 140     TRACE("bih.biCompression=%x\n",     wma->inbih->biCompression);
 141     TRACE("bih.biSizeImage=%d\n",       wma->inbih->biSizeImage);
 142     TRACE("bih.biXPelsPerMeter=%d\n",   wma->inbih->biXPelsPerMeter);
 143     TRACE("bih.biYPelsPerMeter=%d\n",   wma->inbih->biYPelsPerMeter);
 144     TRACE("bih.biClrUsed=%d\n",         wma->inbih->biClrUsed);
 145     TRACE("bih.biClrImportant=%d\n",    wma->inbih->biClrImportant);
 146
 147     wma->source.left = 0;
 148     wma->source.top = 0;
 149     wma->source.right = wma->inbih->biWidth;
 150     wma->source.bottom = wma->inbih->biHeight;
 151
 152     wma->dest = wma->source;
 153
 154     return TRUE;
 155 }
 156
 157 struct AviListBuild {
 158     DWORD       numVideoFrames;
 159     DWORD       numAudioAllocated;
 160     DWORD       numAudioBlocks;
 161     DWORD       inVideoSize;
 162     DWORD       inAudioSize;
 163 };
 164
 165 static BOOL     MCIAVI_AddFrame(WINE_MCIAVI* wma, LPMMCKINFO mmck,
 166                                 struct AviListBuild* alb)
 167 {
 168     const BYTE *p;
 169     DWORD stream_n;
 170     DWORD twocc;
 171
 172     if (mmck->ckid == ckidAVIPADDING) return TRUE;
 173
 174     p = (const BYTE *)&mmck->ckid;
 175
 176     if (!isxdigit(p[0]) || !isxdigit(p[1]))
 177     {
 178         WARN("wrongly encoded stream #\n");
 179         return FALSE;
 180     }
 181
 182     stream_n = (p[0] <= '9') ? (p[0] - '0') : (tolower(p[0]) - 'a' + 10);
 183     stream_n <<= 4;
 184     stream_n |= (p[1] <= '9') ? (p[1] - '0') : (tolower(p[1]) - 'a' + 10);
 185
 186     TRACE("ckid %4.4s (stream #%d)\n", (LPSTR)&mmck->ckid, stream_n);
 187
 188     /* Some (rare?) AVI files have video streams name XXYY where XX = stream number and YY = TWOCC
 189      * of the last 2 characters of the biCompression member of the BITMAPINFOHEADER structure.
 190      * Ex: fccHandler = IV32 & biCompression = IV32 => stream name = XX32
 191      *     fccHandler = MSVC & biCompression = CRAM => stream name = XXAM
 192      * Another possibility is that these TWOCC are simply ignored.
 193      * Default to cktypeDIBcompressed when this case happens.
 194      */
 195     twocc = TWOCCFromFOURCC(mmck->ckid);
 196     if (twocc == TWOCCFromFOURCC(wma->inbih->biCompression))
 197         twocc = cktypeDIBcompressed;
 198
 199     switch (twocc) {
 200     case cktypeDIBbits:
 201     case cktypeDIBcompressed:
 202     case cktypePALchange:
 203         if (stream_n != wma->video_stream_n)
 204         {
 205             TRACE("data belongs to another video stream #%d\n", stream_n);
 206             return FALSE;
 207         }
 208
 209         TRACE("Adding video frame[%d]: %d bytes\n",
 210               alb->numVideoFrames, mmck->cksize);
 211
 212         if (alb->numVideoFrames < wma->dwPlayableVideoFrames) {
 213             wma->lpVideoIndex[alb->numVideoFrames].dwOffset = mmck->dwDataOffset;
 214             wma->lpVideoIndex[alb->numVideoFrames].dwSize = mmck->cksize;
 215             if (alb->inVideoSize < mmck->cksize)
 216                 alb->inVideoSize = mmck->cksize;
 217             alb->numVideoFrames++;
 218         } else {
 219             WARN("Too many video frames\n");
 220         }
 221         break;
 222     case cktypeWAVEbytes:
 223         if (stream_n != wma->audio_stream_n)
 224         {
 225             TRACE("data belongs to another audio stream #%d\n", stream_n);
 226             return FALSE;
 227         }
 228
 229         TRACE("Adding audio frame[%d]: %d bytes\n",
 230               alb->numAudioBlocks, mmck->cksize);
 231         if (wma->lpWaveFormat) {
 232             if (alb->numAudioBlocks >= alb->numAudioAllocated) {
 233                 alb->numAudioAllocated += 32;
 234                 if (!wma->lpAudioIndex)
 235                     wma->lpAudioIndex = HeapAlloc(GetProcessHeap(), 0,
 236                                                   alb->numAudioAllocated * sizeof(struct MMIOPos));
 237                 else
 238                     wma->lpAudioIndex = HeapReAlloc(GetProcessHeap(), 0, wma->lpAudioIndex,
 239                                                     alb->numAudioAllocated * sizeof(struct MMIOPos));
 240                 if (!wma->lpAudioIndex) return FALSE;
 241             }
 242             wma->lpAudioIndex[alb->numAudioBlocks].dwOffset = mmck->dwDataOffset;
 243             wma->lpAudioIndex[alb->numAudioBlocks].dwSize = mmck->cksize;
 244             if (alb->inAudioSize < mmck->cksize)
 245                 alb->inAudioSize = mmck->cksize;
 246             alb->numAudioBlocks++;
 247         } else {
 248             WARN("Wave chunk without wave format... discarding\n");
 249         }
 250         break;
 251     default:
 252         WARN("Unknown frame type %4.4s\n", (LPSTR)&mmck->ckid);
 253         break;
 254     }
 255     return TRUE;
 256 }
 257
 258 BOOL MCIAVI_GetInfo(WINE_MCIAVI* wma)
 259 {
 260     MMCKINFO            ckMainRIFF;
 261     MMCKINFO            mmckHead;
 262     MMCKINFO            mmckList;
 263     MMCKINFO            mmckInfo;
 264     struct AviListBuild alb;
 265     DWORD stream_n;
 266
 267     if (mmioDescend(wma->hFile, &ckMainRIFF, NULL, 0) != 0) {
 268         WARN("Can't find 'RIFF' chunk\n");
 269         return FALSE;
 270     }
 271
 272     if ((ckMainRIFF.ckid != FOURCC_RIFF) || (ckMainRIFF.fccType != formtypeAVI)) {
 273         WARN("Can't find 'AVI ' chunk\n");
 274         return FALSE;
 275     }
 276
 277     mmckHead.fccType = listtypeAVIHEADER;
 278     if (mmioDescend(wma->hFile, &mmckHead, &ckMainRIFF, MMIO_FINDLIST) != 0) {
 279         WARN("Can't find 'hdrl' list\n");
 280         return FALSE;
 281     }
 282
 283     mmckInfo.ckid = ckidAVIMAINHDR;
 284     if (mmioDescend(wma->hFile, &mmckInfo, &mmckHead, MMIO_FINDCHUNK) != 0) {
 285         WARN("Can't find 'avih' chunk\n");
 286         return FALSE;
 287     }
 288
 289     mmioRead(wma->hFile, (LPSTR)&wma->mah, sizeof(wma->mah));
 290
 291     TRACE("mah.dwMicroSecPerFrame=%d\n",        wma->mah.dwMicroSecPerFrame);
 292     TRACE("mah.dwMaxBytesPerSec=%d\n",  wma->mah.dwMaxBytesPerSec);
 293     TRACE("mah.dwPaddingGranularity=%d\n",      wma->mah.dwPaddingGranularity);
 294     TRACE("mah.dwFlags=%d\n",                   wma->mah.dwFlags);
 295     TRACE("mah.dwTotalFrames=%d\n",             wma->mah.dwTotalFrames);
 296     TRACE("mah.dwInitialFrames=%d\n",           wma->mah.dwInitialFrames);
 297     TRACE("mah.dwStreams=%d\n",                 wma->mah.dwStreams);
 298     TRACE("mah.dwSuggestedBufferSize=%d\n",     wma->mah.dwSuggestedBufferSize);
 299     TRACE("mah.dwWidth=%d\n",                   wma->mah.dwWidth);
 300     TRACE("mah.dwHeight=%d\n",          wma->mah.dwHeight);
 301
 302     mmioAscend(wma->hFile, &mmckInfo, 0);
 303
 304     TRACE("Start of streams\n");
 305     wma->video_stream_n = 0;
 306     wma->audio_stream_n = 0;
 307
 308     for (stream_n = 0; stream_n < wma->mah.dwStreams; stream_n++)
 309     {
 310         MMCKINFO mmckStream;
 311
 312         mmckList.fccType = listtypeSTREAMHEADER;
 313         if (mmioDescend(wma->hFile, &mmckList, &mmckHead, MMIO_FINDLIST) != 0)
 314             break;
 315
 316         mmckStream.ckid = ckidSTREAMHEADER;
 317         if (mmioDescend(wma->hFile, &mmckStream, &mmckList, MMIO_FINDCHUNK) != 0)
 318         {
 319             WARN("Can't find 'strh' chunk\n");
 320             continue;
 321         }
 322
 323         TRACE("Stream #%d fccType %4.4s\n", stream_n, (LPSTR)&mmckStream.fccType);
 324
 325         if (mmckStream.fccType == streamtypeVIDEO)
 326         {
 327             TRACE("found video stream\n");
 328             if (wma->inbih)
 329                 WARN("ignoring another video stream\n");
 330             else
 331             {
 332                 if (!MCIAVI_GetInfoVideo(wma, &mmckList, &mmckStream))
 333                     return FALSE;
 334                 wma->video_stream_n = stream_n;
 335             }
 336         }
 337         else if (mmckStream.fccType == streamtypeAUDIO)
 338         {
 339             TRACE("found audio stream\n");
 340             if (wma->lpWaveFormat)
 341                 WARN("ignoring another audio stream\n");
 342             else
 343             {
 344                 if (!MCIAVI_GetInfoAudio(wma, &mmckList, &mmckStream))
 345                     return FALSE;
 346                 wma->audio_stream_n = stream_n;
 347             }
 348         }
 349         else
 350             TRACE("Unsupported stream type %4.4s\n", (LPSTR)&mmckStream.fccType);
 351
 352         mmioAscend(wma->hFile, &mmckList, 0);
 353     }
 354
 355     TRACE("End of streams\n");
 356
 357     mmioAscend(wma->hFile, &mmckHead, 0);
 358
 359     /* no need to read optional JUNK chunk */
 360
 361     mmckList.fccType = listtypeAVIMOVIE;
 362     if (mmioDescend(wma->hFile, &mmckList, &ckMainRIFF, MMIO_FINDLIST) != 0) {
 363         WARN("Can't find 'movi' list\n");
 364         return FALSE;
 365     }
 366
 367     wma->dwPlayableVideoFrames = wma->mah.dwTotalFrames;
 368     wma->lpVideoIndex = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
 369                                   wma->dwPlayableVideoFrames * sizeof(struct MMIOPos));
 370     if (!wma->lpVideoIndex) {
 371         WARN("Can't alloc video index array\n");
 372         return FALSE;
 373     }
 374     wma->dwPlayableAudioBlocks = 0;
 375     wma->lpAudioIndex = NULL;
 376
 377     alb.numAudioBlocks = alb.numVideoFrames = 0;
 378     alb.inVideoSize = alb.inAudioSize = 0;
 379     alb.numAudioAllocated = 0;
 380
 381     while (mmioDescend(wma->hFile, &mmckInfo, &mmckList, 0) == 0) {
 382         if (mmckInfo.fccType == listtypeAVIRECORD) {
 383             MMCKINFO    tmp;
 384
 385             while (mmioDescend(wma->hFile, &tmp, &mmckInfo, 0) == 0) {
 386                 MCIAVI_AddFrame(wma, &tmp, &alb);
 387                 mmioAscend(wma->hFile, &tmp, 0);
 388             }
 389         } else {
 390             MCIAVI_AddFrame(wma, &mmckInfo, &alb);
 391         }
 392
 393         mmioAscend(wma->hFile, &mmckInfo, 0);
 394     }
 395     if (alb.numVideoFrames != wma->dwPlayableVideoFrames) {
 396         WARN("Found %d video frames (/%d), reducing playable frames\n",
 397              alb.numVideoFrames, wma->dwPlayableVideoFrames);
 398         wma->dwPlayableVideoFrames = alb.numVideoFrames;
 399     }
 400     wma->dwPlayableAudioBlocks = alb.numAudioBlocks;
 401
 402     if (alb.inVideoSize > wma->ash_video.dwSuggestedBufferSize) {
 403         WARN("inVideoSize=%d suggestedSize=%d\n", alb.inVideoSize, wma->ash_video.dwSuggestedBufferSize);
 404         wma->ash_video.dwSuggestedBufferSize = alb.inVideoSize;
 405     }
 406     if (alb.inAudioSize > wma->ash_audio.dwSuggestedBufferSize) {
 407         WARN("inAudioSize=%d suggestedSize=%d\n", alb.inAudioSize, wma->ash_audio.dwSuggestedBufferSize);
 408         wma->ash_audio.dwSuggestedBufferSize = alb.inAudioSize;
 409     }
 410
 411     wma->indata = HeapAlloc(GetProcessHeap(), 0, wma->ash_video.dwSuggestedBufferSize);
 412     if (!wma->indata) {
 413         WARN("Can't alloc input buffer\n");
 414         return FALSE;
 415     }
 416
 417     return TRUE;
 418 }
 419
 420 BOOL    MCIAVI_OpenVideo(WINE_MCIAVI* wma)
 421 {
 422     HDC hDC;
 423     DWORD       outSize;
 424     FOURCC      fcc = wma->ash_video.fccHandler;
 425
 426     TRACE("fcc %4.4s\n", (LPSTR)&fcc);
 427
 428     wma->dwCachedFrame = -1;
 429
 430     /* get the right handle */
 431     if (fcc == mmioFOURCC('C','R','A','M')) fcc = mmioFOURCC('M','S','V','C');
 432
 433     /* try to get a decompressor for that type */
 434     wma->hic = ICLocate(ICTYPE_VIDEO, fcc, wma->inbih, NULL, ICMODE_DECOMPRESS);
 435     if (!wma->hic) {
 436         /* check for builtin DIB compressions */
 437         fcc = wma->inbih->biCompression;
 438         if ((fcc == mmioFOURCC('D','I','B',' ')) ||
 439             (fcc == mmioFOURCC('R','L','E',' ')) ||
 440             (fcc == BI_RGB) || (fcc == BI_RLE8) ||
 441             (fcc == BI_RLE4) || (fcc == BI_BITFIELDS))
 442             goto paint_frame;
 443
 444         WARN("Can't locate codec for the file\n");
 445         return FALSE;
 446     }
 447
 448     outSize = sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD);
 449
 450     wma->outbih = HeapAlloc(GetProcessHeap(), 0, outSize);
 451     if (!wma->outbih) {
 452         WARN("Can't alloc output BIH\n");
 453         return FALSE;
 454     }
 455     if (!ICGetDisplayFormat(wma->hic, wma->inbih, wma->outbih, 0, 0, 0)) {
 456         WARN("Can't open decompressor\n");
 457         return FALSE;
 458     }
 459
 460     TRACE("bih.biSize=%d\n",            wma->outbih->biSize);
 461     TRACE("bih.biWidth=%d\n",           wma->outbih->biWidth);
 462     TRACE("bih.biHeight=%d\n",  wma->outbih->biHeight);
 463     TRACE("bih.biPlanes=%d\n",          wma->outbih->biPlanes);
 464     TRACE("bih.biBitCount=%d\n",        wma->outbih->biBitCount);
 465     TRACE("bih.biCompression=%x\n",     wma->outbih->biCompression);
 466     TRACE("bih.biSizeImage=%d\n",       wma->outbih->biSizeImage);
 467     TRACE("bih.biXPelsPerMeter=%d\n",   wma->outbih->biXPelsPerMeter);
 468     TRACE("bih.biYPelsPerMeter=%d\n",   wma->outbih->biYPelsPerMeter);
 469     TRACE("bih.biClrUsed=%d\n",         wma->outbih->biClrUsed);
 470     TRACE("bih.biClrImportant=%d\n",    wma->outbih->biClrImportant);
 471
 472     wma->outdata = HeapAlloc(GetProcessHeap(), 0, wma->outbih->biSizeImage);
 473     if (!wma->outdata) {
 474         WARN("Can't alloc output buffer\n");
 475         return FALSE;
 476     }
 477
 478     if (ICSendMessage(wma->hic, ICM_DECOMPRESS_BEGIN,
 479                       (DWORD)wma->inbih, (DWORD)wma->outbih) != ICERR_OK) {
 480         WARN("Can't begin decompression\n");
 481         return FALSE;
 482     }
 483
 484 paint_frame:
 485     hDC = wma->hWndPaint ? GetDC(wma->hWndPaint) : 0;
 486     if (hDC)
 487     {
 488         MCIAVI_PaintFrame(wma, hDC);
 489         ReleaseDC(wma->hWndPaint, hDC);
 490     }
 491     return TRUE;
 492 }
 493
 494 static void CALLBACK MCIAVI_waveCallback(HWAVEOUT hwo, UINT uMsg, DWORD_PTR dwInstance,
 495                                         DWORD_PTR dwParam1, DWORD_PTR dwParam2)
 496 {
 497     WINE_MCIAVI *wma = (WINE_MCIAVI *)MCIAVI_mciGetOpenDev(dwInstance);
 498
 499     if (!wma) return;
 500
 501     EnterCriticalSection(&wma->cs);
 502
 503     switch (uMsg) {
 504     case WOM_OPEN:
 505     case WOM_CLOSE:
 506         break;
 507     case WOM_DONE:
 508         InterlockedIncrement(&wma->dwEventCount);
 509         TRACE("Returning waveHdr=%lx\n", dwParam1);
 510         SetEvent(wma->hEvent);
 511         break;
 512     default:
 513         ERR("Unknown uMsg=%d\n", uMsg);
 514     }
 515
 516     LeaveCriticalSection(&wma->cs);
 517 }
 518
 519 DWORD MCIAVI_OpenAudio(WINE_MCIAVI* wma, unsigned* nHdr, LPWAVEHDR* pWaveHdr)
 520 {
 521     DWORD       dwRet;
 522     LPWAVEHDR   waveHdr;
 523     unsigned    i;
 524
 525     dwRet = waveOutOpen((HWAVEOUT *)&wma->hWave, WAVE_MAPPER, wma->lpWaveFormat,
 526                        (DWORD_PTR)MCIAVI_waveCallback, wma->wDevID, CALLBACK_FUNCTION);
 527     if (dwRet != 0) {
 528         TRACE("Can't open low level audio device %d\n", dwRet);
 529         dwRet = MCIERR_DEVICE_OPEN;
 530         wma->hWave = 0;
 531         goto cleanUp;
 532     }
 533
 534     /* FIXME: should set up a heuristic to compute the number of wave headers
 535      * to be used...
 536      */
 537     *nHdr = 7;
 538     waveHdr = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
 539                         *nHdr * (sizeof(WAVEHDR) + wma->ash_audio.dwSuggestedBufferSize));
 540     if (!waveHdr) {
 541         TRACE("Can't alloc wave headers\n");
 542         dwRet = MCIERR_DEVICE_OPEN;
 543         goto cleanUp;
 544     }
 545
 546     for (i = 0; i < *nHdr; i++) {
 547         /* other fields are zero:ed on allocation */
 548         waveHdr[i].lpData = (char*)waveHdr +
 549             *nHdr * sizeof(WAVEHDR) + i * wma->ash_audio.dwSuggestedBufferSize;
 550         waveHdr[i].dwBufferLength = wma->ash_audio.dwSuggestedBufferSize;
 551         if (waveOutPrepareHeader(wma->hWave, &waveHdr[i], sizeof(WAVEHDR))) {
 552             dwRet = MCIERR_INTERNAL;
 553             goto cleanUp;
 554         }
 555     }
 556
 557     if (wma->dwCurrVideoFrame != 0 && wma->lpWaveFormat) {
 558         FIXME("Should recompute dwCurrAudioBlock, except unsynchronized sound & video\n");
 559     }
 560     wma->dwCurrAudioBlock = 0;
 561
 562     wma->hEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
 563     wma->dwEventCount = *nHdr - 1;
 564     *pWaveHdr = waveHdr;
 565  cleanUp:
 566     return dwRet;
 567 }
 568
 569 void MCIAVI_PlayAudioBlocks(WINE_MCIAVI* wma, unsigned nHdr, LPWAVEHDR waveHdr)
 570 {
 571     if (!wma->lpAudioIndex)
 572         return;
 573     TRACE("%d (ec=%u)\n", wma->lpAudioIndex[wma->dwCurrAudioBlock].dwOffset, wma->dwEventCount);
 574
 575     /* push as many blocks as possible => audio gets priority */
 576     while (wma->dwStatus != MCI_MODE_STOP && wma->dwStatus != MCI_MODE_NOT_READY &&
 577            wma->dwCurrAudioBlock < wma->dwPlayableAudioBlocks) {
 578         unsigned        whidx = wma->dwCurrAudioBlock % nHdr;
 579
 580         ResetEvent(wma->hEvent);
 581         if (InterlockedDecrement(&wma->dwEventCount) < 0 ||
 582             !wma->lpAudioIndex[wma->dwCurrAudioBlock].dwOffset)
 583         {
 584             InterlockedIncrement(&wma->dwEventCount);
 585             break;
 586         }
 587
 588         mmioSeek(wma->hFile, wma->lpAudioIndex[wma->dwCurrAudioBlock].dwOffset, SEEK_SET);
 589         mmioRead(wma->hFile, waveHdr[whidx].lpData, wma->lpAudioIndex[wma->dwCurrAudioBlock].dwSize);
 590
 591         waveHdr[whidx].dwFlags &= ~WHDR_DONE;
 592         waveHdr[whidx].dwBufferLength = wma->lpAudioIndex[wma->dwCurrAudioBlock].dwSize;
 593         waveOutWrite(wma->hWave, &waveHdr[whidx], sizeof(WAVEHDR));
 594         wma->dwCurrAudioBlock++;
 595     }
 596 }
 597
 598 LRESULT MCIAVI_PaintFrame(WINE_MCIAVI* wma, HDC hDC)
 599 {
 600     void*               pBitmapData;
 601     LPBITMAPINFO        pBitmapInfo;
 602     int                 nWidth;
 603     int                 nHeight;
 604
 605     if (!hDC || !wma->inbih)
 606         return TRUE;
 607
 608     TRACE("Painting frame %u (cached %u)\n", wma->dwCurrVideoFrame, wma->dwCachedFrame);
 609
 610     if (wma->dwCurrVideoFrame != wma->dwCachedFrame)
 611     {
 612         if (!wma->lpVideoIndex[wma->dwCurrVideoFrame].dwOffset)
 613             return FALSE;
 614
 615         if (wma->lpVideoIndex[wma->dwCurrVideoFrame].dwSize)
 616         {
 617             mmioSeek(wma->hFile, wma->lpVideoIndex[wma->dwCurrVideoFrame].dwOffset, SEEK_SET);
 618             mmioRead(wma->hFile, wma->indata, wma->lpVideoIndex[wma->dwCurrVideoFrame].dwSize);
 619
 620             wma->inbih->biSizeImage = wma->lpVideoIndex[wma->dwCurrVideoFrame].dwSize;
 621
 622             if (wma->hic && ICDecompress(wma->hic, 0, wma->inbih, wma->indata,
 623                                          wma->outbih, wma->outdata) != ICERR_OK)
 624             {
 625                 WARN("Decompression error\n");
 626                 return FALSE;
 627             }
 628         }
 629
 630         wma->dwCachedFrame = wma->dwCurrVideoFrame;
 631     }
 632
 633     if (wma->hic) {
 634         pBitmapData = wma->outdata;
 635         pBitmapInfo = (LPBITMAPINFO)wma->outbih;
 636
 637         nWidth = wma->outbih->biWidth;
 638         nHeight = wma->outbih->biHeight;
 639     } else {
 640         pBitmapData = wma->indata;
 641         pBitmapInfo = (LPBITMAPINFO)wma->inbih;
 642
 643         nWidth = wma->inbih->biWidth;
 644         nHeight = wma->inbih->biHeight;
 645     }
 646
 647     StretchDIBits(hDC,
 648                   wma->dest.left, wma->dest.top,
 649                   wma->dest.right - wma->dest.left, wma->dest.bottom - wma->dest.top,
 650                   wma->source.left, wma->source.top,
 651                   wma->source.right - wma->source.left, wma->source.bottom - wma->source.top,
 652                   pBitmapData, pBitmapInfo, DIB_RGB_COLORS, SRCCOPY);
 653
 654     return TRUE;
 655 }