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     /* Also detect some chunks that seem to be used by Indeo videos where the chunk is named
 195      * after the codec. */
 196     else if (twocc == LOWORD(wma->ash_video.fccHandler))
 197         twocc = cktypeDIBcompressed;
 198     switch (twocc) {
 199     case cktypeDIBbits:
 200     case cktypeDIBcompressed:
 201     case cktypePALchange:
 202         if (stream_n != wma->video_stream_n)
 203         {
 204             TRACE("data belongs to another video stream #%d\n", stream_n);
 205             return FALSE;
 206         }
 207
 208         TRACE("Adding video frame[%d]: %d bytes\n",
 209               alb->numVideoFrames, mmck->cksize);
 210
 211         if (alb->numVideoFrames < wma->dwPlayableVideoFrames) {
 212             wma->lpVideoIndex[alb->numVideoFrames].dwOffset = mmck->dwDataOffset;
 213             wma->lpVideoIndex[alb->numVideoFrames].dwSize = mmck->cksize;
 214             if (alb->inVideoSize < mmck->cksize)
 215                 alb->inVideoSize = mmck->cksize;
 216             alb->numVideoFrames++;
 217         } else {
 218             WARN("Too many video frames\n");
 219         }
 220         break;
 221     case cktypeWAVEbytes:
 222         if (stream_n != wma->audio_stream_n)
 223         {
 224             TRACE("data belongs to another audio stream #%d\n", stream_n);
 225             return FALSE;
 226         }
 227
 228         TRACE("Adding audio frame[%d]: %d bytes\n",
 229               alb->numAudioBlocks, mmck->cksize);
 230         if (wma->lpWaveFormat) {
 231             if (alb->numAudioBlocks >= alb->numAudioAllocated) {
 232                 alb->numAudioAllocated += 32;
 233                 if (!wma->lpAudioIndex)
 234                     wma->lpAudioIndex = HeapAlloc(GetProcessHeap(), 0,
 235                                                   alb->numAudioAllocated * sizeof(struct MMIOPos));
 236                 else
 237                     wma->lpAudioIndex = HeapReAlloc(GetProcessHeap(), 0, wma->lpAudioIndex,
 238                                                     alb->numAudioAllocated * sizeof(struct MMIOPos));
 239                 if (!wma->lpAudioIndex) return FALSE;
 240             }
 241             wma->lpAudioIndex[alb->numAudioBlocks].dwOffset = mmck->dwDataOffset;
 242             wma->lpAudioIndex[alb->numAudioBlocks].dwSize = mmck->cksize;
 243             if (alb->inAudioSize < mmck->cksize)
 244                 alb->inAudioSize = mmck->cksize;
 245             alb->numAudioBlocks++;
 246         } else {
 247             WARN("Wave chunk without wave format... discarding\n");
 248         }
 249         break;
 250     default:
 251         WARN("Unknown frame type %4.4s\n", (LPSTR)&mmck->ckid);
 252         break;
 253     }
 254     return TRUE;
 255 }
 256
 257 BOOL MCIAVI_GetInfo(WINE_MCIAVI* wma)
 258 {
 259     MMCKINFO            ckMainRIFF;
 260     MMCKINFO            mmckHead;
 261     MMCKINFO            mmckList;
 262     MMCKINFO            mmckInfo;
 263     AVIStreamHeader strh;
 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         mmioRead(wma->hFile, (LPSTR)&strh, sizeof(strh));
 324
 325         TRACE("Stream #%d fccType %4.4s\n", stream_n, (LPSTR)&strh.fccType);
 326
 327         if (strh.fccType == streamtypeVIDEO)
 328         {
 329             TRACE("found video stream\n");
 330             if (wma->inbih)
 331                 WARN("ignoring another video stream\n");
 332             else
 333             {
 334                 wma->ash_video = strh;
 335
 336                 if (!MCIAVI_GetInfoVideo(wma, &mmckList, &mmckStream))
 337                     return FALSE;
 338                 wma->video_stream_n = stream_n;
 339                 wma->dwSet |= 4;
 340             }
 341         }
 342         else if (strh.fccType == streamtypeAUDIO)
 343         {
 344             TRACE("found audio stream\n");
 345             if (wma->lpWaveFormat)
 346                 WARN("ignoring another audio stream\n");
 347             else
 348             {
 349                 wma->ash_audio = strh;
 350
 351                 if (!MCIAVI_GetInfoAudio(wma, &mmckList, &mmckStream))
 352                     return FALSE;
 353                 wma->audio_stream_n = stream_n;
 354                 wma->dwSet |= 3;
 355             }
 356         }
 357         else
 358             TRACE("Unsupported stream type %4.4s\n", (LPSTR)&strh.fccType);
 359
 360         mmioAscend(wma->hFile, &mmckList, 0);
 361     }
 362
 363     TRACE("End of streams\n");
 364
 365     mmioAscend(wma->hFile, &mmckHead, 0);
 366
 367     /* no need to read optional JUNK chunk */
 368
 369     mmckList.fccType = listtypeAVIMOVIE;
 370     if (mmioDescend(wma->hFile, &mmckList, &ckMainRIFF, MMIO_FINDLIST) != 0) {
 371         WARN("Can't find 'movi' list\n");
 372         return FALSE;
 373     }
 374
 375     wma->dwPlayableVideoFrames = wma->mah.dwTotalFrames;
 376     wma->lpVideoIndex = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
 377                                   wma->dwPlayableVideoFrames * sizeof(struct MMIOPos));
 378     if (!wma->lpVideoIndex) {
 379         WARN("Can't alloc video index array\n");
 380         return FALSE;
 381     }
 382     wma->dwPlayableAudioBlocks = 0;
 383     wma->lpAudioIndex = NULL;
 384
 385     alb.numAudioBlocks = alb.numVideoFrames = 0;
 386     alb.inVideoSize = alb.inAudioSize = 0;
 387     alb.numAudioAllocated = 0;
 388
 389     while (mmioDescend(wma->hFile, &mmckInfo, &mmckList, 0) == 0) {
 390         if (mmckInfo.fccType == listtypeAVIRECORD) {
 391             MMCKINFO    tmp;
 392
 393             while (mmioDescend(wma->hFile, &tmp, &mmckInfo, 0) == 0) {
 394                 MCIAVI_AddFrame(wma, &tmp, &alb);
 395                 mmioAscend(wma->hFile, &tmp, 0);
 396             }
 397         } else {
 398             MCIAVI_AddFrame(wma, &mmckInfo, &alb);
 399         }
 400
 401         mmioAscend(wma->hFile, &mmckInfo, 0);
 402     }
 403     if (alb.numVideoFrames != wma->dwPlayableVideoFrames) {
 404         WARN("AVI header says %d frames, we found %d video frames, reducing playable frames\n",
 405              wma->dwPlayableVideoFrames, alb.numVideoFrames);
 406         wma->dwPlayableVideoFrames = alb.numVideoFrames;
 407     }
 408     wma->dwPlayableAudioBlocks = alb.numAudioBlocks;
 409
 410     if (alb.inVideoSize > wma->ash_video.dwSuggestedBufferSize) {
 411         WARN("inVideoSize=%d suggestedSize=%d\n", alb.inVideoSize, wma->ash_video.dwSuggestedBufferSize);
 412         wma->ash_video.dwSuggestedBufferSize = alb.inVideoSize;
 413     }
 414     if (alb.inAudioSize > wma->ash_audio.dwSuggestedBufferSize) {
 415         WARN("inAudioSize=%d suggestedSize=%d\n", alb.inAudioSize, wma->ash_audio.dwSuggestedBufferSize);
 416         wma->ash_audio.dwSuggestedBufferSize = alb.inAudioSize;
 417     }
 418
 419     wma->indata = HeapAlloc(GetProcessHeap(), 0, wma->ash_video.dwSuggestedBufferSize);
 420     if (!wma->indata) {
 421         WARN("Can't alloc input buffer\n");
 422         return FALSE;
 423     }
 424
 425     return TRUE;
 426 }
 427
 428 BOOL    MCIAVI_OpenVideo(WINE_MCIAVI* wma)
 429 {
 430     HDC hDC;
 431     DWORD       outSize;
 432     FOURCC      fcc = wma->ash_video.fccHandler;
 433
 434     TRACE("fcc %4.4s\n", (LPSTR)&fcc);
 435
 436     wma->dwCachedFrame = -1;
 437
 438     /* get the right handle */
 439     if (fcc == mmioFOURCC('C','R','A','M')) fcc = mmioFOURCC('M','S','V','C');
 440
 441     /* try to get a decompressor for that type */
 442     wma->hic = ICLocate(ICTYPE_VIDEO, fcc, wma->inbih, NULL, ICMODE_DECOMPRESS);
 443     if (!wma->hic) {
 444         /* check for builtin DIB compressions */
 445         fcc = wma->inbih->biCompression;
 446         if ((fcc == mmioFOURCC('D','I','B',' ')) ||
 447             (fcc == mmioFOURCC('R','L','E',' ')) ||
 448             (fcc == BI_RGB) || (fcc == BI_RLE8) ||
 449             (fcc == BI_RLE4) || (fcc == BI_BITFIELDS))
 450             goto paint_frame;
 451
 452         WARN("Can't locate codec for the file\n");
 453         return FALSE;
 454     }
 455
 456     outSize = sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD);
 457
 458     wma->outbih = HeapAlloc(GetProcessHeap(), 0, outSize);
 459     if (!wma->outbih) {
 460         WARN("Can't alloc output BIH\n");
 461         return FALSE;
 462     }
 463     if (!ICGetDisplayFormat(wma->hic, wma->inbih, wma->outbih, 0, 0, 0)) {
 464         WARN("Can't open decompressor\n");
 465         return FALSE;
 466     }
 467
 468     TRACE("bih.biSize=%d\n",            wma->outbih->biSize);
 469     TRACE("bih.biWidth=%d\n",           wma->outbih->biWidth);
 470     TRACE("bih.biHeight=%d\n",  wma->outbih->biHeight);
 471     TRACE("bih.biPlanes=%d\n",          wma->outbih->biPlanes);
 472     TRACE("bih.biBitCount=%d\n",        wma->outbih->biBitCount);
 473     TRACE("bih.biCompression=%x\n",     wma->outbih->biCompression);
 474     TRACE("bih.biSizeImage=%d\n",       wma->outbih->biSizeImage);
 475     TRACE("bih.biXPelsPerMeter=%d\n",   wma->outbih->biXPelsPerMeter);
 476     TRACE("bih.biYPelsPerMeter=%d\n",   wma->outbih->biYPelsPerMeter);
 477     TRACE("bih.biClrUsed=%d\n",         wma->outbih->biClrUsed);
 478     TRACE("bih.biClrImportant=%d\n",    wma->outbih->biClrImportant);
 479
 480     wma->outdata = HeapAlloc(GetProcessHeap(), 0, wma->outbih->biSizeImage);
 481     if (!wma->outdata) {
 482         WARN("Can't alloc output buffer\n");
 483         return FALSE;
 484     }
 485
 486     if (ICSendMessage(wma->hic, ICM_DECOMPRESS_BEGIN,
 487                       (DWORD_PTR)wma->inbih, (DWORD_PTR)wma->outbih) != ICERR_OK) {
 488         WARN("Can't begin decompression\n");
 489         return FALSE;
 490     }
 491
 492 paint_frame:
 493     hDC = wma->hWndPaint ? GetDC(wma->hWndPaint) : 0;
 494     if (hDC)
 495     {
 496         MCIAVI_PaintFrame(wma, hDC);
 497         ReleaseDC(wma->hWndPaint, hDC);
 498     }
 499     return TRUE;
 500 }
 501
 502 static void CALLBACK MCIAVI_waveCallback(HWAVEOUT hwo, UINT uMsg, DWORD_PTR dwInstance,
 503                                         DWORD_PTR dwParam1, DWORD_PTR dwParam2)
 504 {
 505     WINE_MCIAVI *wma = MCIAVI_mciGetOpenDev(dwInstance);
 506
 507     if (!wma) return;
 508
 509     EnterCriticalSection(&wma->cs);
 510
 511     switch (uMsg) {
 512     case WOM_OPEN:
 513     case WOM_CLOSE:
 514         break;
 515     case WOM_DONE:
 516         InterlockedIncrement(&wma->dwEventCount);
 517         TRACE("Returning waveHdr=%lx\n", dwParam1);
 518         SetEvent(wma->hEvent);
 519         break;
 520     default:
 521         ERR("Unknown uMsg=%d\n", uMsg);
 522     }
 523
 524     LeaveCriticalSection(&wma->cs);
 525 }
 526
 527 DWORD MCIAVI_OpenAudio(WINE_MCIAVI* wma, unsigned* nHdr, LPWAVEHDR* pWaveHdr)
 528 {
 529     DWORD       dwRet;
 530     LPWAVEHDR   waveHdr;
 531     unsigned    i;
 532
 533     dwRet = waveOutOpen((HWAVEOUT *)&wma->hWave, WAVE_MAPPER, wma->lpWaveFormat,
 534                        (DWORD_PTR)MCIAVI_waveCallback, wma->wDevID, CALLBACK_FUNCTION);
 535     if (dwRet != 0) {
 536         TRACE("Can't open low level audio device %d\n", dwRet);
 537         dwRet = MCIERR_DEVICE_OPEN;
 538         wma->hWave = 0;
 539         goto cleanUp;
 540     }
 541
 542     /* FIXME: should set up a heuristic to compute the number of wave headers
 543      * to be used...
 544      */
 545     *nHdr = 7;
 546     waveHdr = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
 547                         *nHdr * (sizeof(WAVEHDR) + wma->ash_audio.dwSuggestedBufferSize));
 548     if (!waveHdr) {
 549         TRACE("Can't alloc wave headers\n");
 550         dwRet = MCIERR_DEVICE_OPEN;
 551         goto cleanUp;
 552     }
 553
 554     for (i = 0; i < *nHdr; i++) {
 555         /* other fields are zero:ed on allocation */
 556         waveHdr[i].lpData = (char*)waveHdr +
 557             *nHdr * sizeof(WAVEHDR) + i * wma->ash_audio.dwSuggestedBufferSize;
 558         waveHdr[i].dwBufferLength = wma->ash_audio.dwSuggestedBufferSize;
 559         if (waveOutPrepareHeader(wma->hWave, &waveHdr[i], sizeof(WAVEHDR))) {
 560             dwRet = MCIERR_INTERNAL;
 561             goto cleanUp;
 562         }
 563     }
 564
 565     if (wma->dwCurrVideoFrame != 0 && wma->lpWaveFormat) {
 566         FIXME("Should recompute dwCurrAudioBlock, except unsynchronized sound & video\n");
 567     }
 568     wma->dwCurrAudioBlock = 0;
 569
 570     wma->hEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
 571     wma->dwEventCount = *nHdr - 1;
 572     *pWaveHdr = waveHdr;
 573  cleanUp:
 574     return dwRet;
 575 }
 576
 577 void MCIAVI_PlayAudioBlocks(WINE_MCIAVI* wma, unsigned nHdr, LPWAVEHDR waveHdr)
 578 {
 579     if (!wma->lpAudioIndex)
 580         return;
 581     TRACE("%d (ec=%u)\n", wma->lpAudioIndex[wma->dwCurrAudioBlock].dwOffset, wma->dwEventCount);
 582
 583     /* push as many blocks as possible => audio gets priority */
 584     while (wma->dwStatus != MCI_MODE_STOP && wma->dwStatus != MCI_MODE_NOT_READY &&
 585            wma->dwCurrAudioBlock < wma->dwPlayableAudioBlocks) {
 586         unsigned        whidx = wma->dwCurrAudioBlock % nHdr;
 587
 588         ResetEvent(wma->hEvent);
 589         if (InterlockedDecrement(&wma->dwEventCount) < 0 ||
 590             !wma->lpAudioIndex[wma->dwCurrAudioBlock].dwOffset)
 591         {
 592             InterlockedIncrement(&wma->dwEventCount);
 593             break;
 594         }
 595
 596         mmioSeek(wma->hFile, wma->lpAudioIndex[wma->dwCurrAudioBlock].dwOffset, SEEK_SET);
 597         mmioRead(wma->hFile, waveHdr[whidx].lpData, wma->lpAudioIndex[wma->dwCurrAudioBlock].dwSize);
 598
 599         waveHdr[whidx].dwFlags &= ~WHDR_DONE;
 600         waveHdr[whidx].dwBufferLength = wma->lpAudioIndex[wma->dwCurrAudioBlock].dwSize;
 601         waveOutWrite(wma->hWave, &waveHdr[whidx], sizeof(WAVEHDR));
 602         wma->dwCurrAudioBlock++;
 603     }
 604 }
 605
 606 double MCIAVI_PaintFrame(WINE_MCIAVI* wma, HDC hDC)
 607 {
 608     void*               pBitmapData;
 609     LPBITMAPINFO        pBitmapInfo;
 610
 611     if (!hDC || !wma->inbih)
 612         return 0;
 613
 614     TRACE("Painting frame %u (cached %u)\n", wma->dwCurrVideoFrame, wma->dwCachedFrame);
 615
 616     if (wma->dwCurrVideoFrame != wma->dwCachedFrame)
 617     {
 618         if (!wma->lpVideoIndex[wma->dwCurrVideoFrame].dwOffset)
 619             return 0;
 620
 621         if (wma->lpVideoIndex[wma->dwCurrVideoFrame].dwSize)
 622         {
 623             mmioSeek(wma->hFile, wma->lpVideoIndex[wma->dwCurrVideoFrame].dwOffset, SEEK_SET);
 624             mmioRead(wma->hFile, wma->indata, wma->lpVideoIndex[wma->dwCurrVideoFrame].dwSize);
 625
 626             wma->inbih->biSizeImage = wma->lpVideoIndex[wma->dwCurrVideoFrame].dwSize;
 627
 628             if (wma->hic && ICDecompress(wma->hic, 0, wma->inbih, wma->indata,
 629                                          wma->outbih, wma->outdata) != ICERR_OK)
 630             {
 631                 WARN("Decompression error\n");
 632                 return 0;
 633             }
 634         }
 635
 636         wma->dwCachedFrame = wma->dwCurrVideoFrame;
 637     }
 638
 639     if (wma->hic) {
 640         pBitmapData = wma->outdata;
 641         pBitmapInfo = (LPBITMAPINFO)wma->outbih;
 642     } else {
 643         pBitmapData = wma->indata;
 644         pBitmapInfo = (LPBITMAPINFO)wma->inbih;
 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 (wma->ash_video.dwScale / (double)wma->ash_video.dwRate) * 1000000;
 655 }