dlls/avifil32/wavfile.c

   1 /*
   2  * Copyright 2002 Michael Günnewig
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include <assert.h>
  20 #include <stdarg.h>
  21
  22 #include "windef.h"
  23 #include "winbase.h"
  24 #include "wingdi.h"
  25 #include "winuser.h"
  26 #include "winnls.h"
  27 #include "winerror.h"
  28 #include "mmsystem.h"
  29 #include "vfw.h"
  30 #include "msacm.h"
  31
  32 #include "avifile_private.h"
  33 #include "extrachunk.h"
  34
  35 #include "wine/unicode.h"
  36 #include "wine/debug.h"
  37
  38 WINE_DEFAULT_DEBUG_CHANNEL(avifile);
  39
  40 /***********************************************************************/
  41
  42 #define formtypeWAVE    mmioFOURCC('W','A','V','E')
  43 #define ckidWAVEFORMAT  mmioFOURCC('f','m','t',' ')
  44 #define ckidWAVEFACT    mmioFOURCC('f','a','c','t')
  45 #define ckidWAVEDATA    mmioFOURCC('d','a','t','a')
  46
  47 /***********************************************************************/
  48
  49 #define ENDIAN_SWAPWORD(x)  ((((x) >> 8) & 0xFF) | (((x) & 0xFF) << 8))
  50 #define ENDIAN_SWAPDWORD(x) (ENDIAN_SWAPWORD((x >> 16) & 0xFFFF) | \
  51                              ENDIAN_SWAPWORD(x & 0xFFFF) << 16)
  52
  53 #ifdef WORDS_BIGENDIAN
  54 #define BE2H_WORD(x)  (x)
  55 #define BE2H_DWORD(x) (x)
  56 #define LE2H_WORD(x)  ENDIAN_SWAPWORD(x)
  57 #define LE2H_DWORD(x) ENDIAN_SWAPDWORD(x)
  58 #else
  59 #define BE2H_WORD(x)  ENDIAN_SWAPWORD(x)
  60 #define BE2H_DWORD(x) ENDIAN_SWAPDWORD(x)
  61 #define LE2H_WORD(x)  (x)
  62 #define LE2H_DWORD(x) (x)
  63 #endif
  64
  65 typedef struct {
  66   FOURCC  fccType;
  67   DWORD   offset;
  68   DWORD   size;
  69   INT     encoding;
  70   DWORD   sampleRate;
  71   DWORD   channels;
  72 } SUNAUDIOHEADER;
  73
  74 #define AU_ENCODING_ULAW_8                 1
  75 #define AU_ENCODING_PCM_8                  2
  76 #define AU_ENCODING_PCM_16                 3
  77 #define AU_ENCODING_PCM_24                 4
  78 #define AU_ENCODING_PCM_32                 5
  79 #define AU_ENCODING_FLOAT                  6
  80 #define AU_ENCODING_DOUBLE                 7
  81 #define AU_ENCODING_ADPCM_G721_32         23
  82 #define AU_ENCODING_ADPCM_G722            24
  83 #define AU_ENCODING_ADPCM_G723_24         25
  84 #define AU_ENCODING_ADPCM_G723_5          26
  85 #define AU_ENCODING_ALAW_8                27
  86
  87 /***********************************************************************/
  88
  89 static HRESULT WINAPI IAVIFile_fnQueryInterface(IAVIFile* iface,REFIID refiid,LPVOID *obj);
  90 static ULONG   WINAPI IAVIFile_fnAddRef(IAVIFile* iface);
  91 static ULONG   WINAPI IAVIFile_fnRelease(IAVIFile* iface);
  92 static HRESULT WINAPI IAVIFile_fnInfo(IAVIFile*iface,AVIFILEINFOW*afi,LONG size);
  93 static HRESULT WINAPI IAVIFile_fnGetStream(IAVIFile*iface,PAVISTREAM*avis,DWORD fccType,LONG lParam);
  94 static HRESULT WINAPI IAVIFile_fnCreateStream(IAVIFile*iface,PAVISTREAM*avis,AVISTREAMINFOW*asi);
  95 static HRESULT WINAPI IAVIFile_fnWriteData(IAVIFile*iface,DWORD ckid,LPVOID lpData,LONG size);
  96 static HRESULT WINAPI IAVIFile_fnReadData(IAVIFile*iface,DWORD ckid,LPVOID lpData,LONG *size);
  97 static HRESULT WINAPI IAVIFile_fnEndRecord(IAVIFile*iface);
  98 static HRESULT WINAPI IAVIFile_fnDeleteStream(IAVIFile*iface,DWORD fccType,LONG lParam);
  99
 100 static const struct IAVIFileVtbl iwavft = {
 101   IAVIFile_fnQueryInterface,
 102   IAVIFile_fnAddRef,
 103   IAVIFile_fnRelease,
 104   IAVIFile_fnInfo,
 105   IAVIFile_fnGetStream,
 106   IAVIFile_fnCreateStream,
 107   IAVIFile_fnWriteData,
 108   IAVIFile_fnReadData,
 109   IAVIFile_fnEndRecord,
 110   IAVIFile_fnDeleteStream
 111 };
 112
 113 static HRESULT WINAPI IPersistFile_fnQueryInterface(IPersistFile*iface,REFIID refiid,LPVOID*obj);
 114 static ULONG   WINAPI IPersistFile_fnAddRef(IPersistFile*iface);
 115 static ULONG   WINAPI IPersistFile_fnRelease(IPersistFile*iface);
 116 static HRESULT WINAPI IPersistFile_fnGetClassID(IPersistFile*iface,CLSID*pClassID);
 117 static HRESULT WINAPI IPersistFile_fnIsDirty(IPersistFile*iface);
 118 static HRESULT WINAPI IPersistFile_fnLoad(IPersistFile*iface,LPCOLESTR pszFileName,DWORD dwMode);
 119 static HRESULT WINAPI IPersistFile_fnSave(IPersistFile*iface,LPCOLESTR pszFileName,BOOL fRemember);
 120 static HRESULT WINAPI IPersistFile_fnSaveCompleted(IPersistFile*iface,LPCOLESTR pszFileName);
 121 static HRESULT WINAPI IPersistFile_fnGetCurFile(IPersistFile*iface,LPOLESTR*ppszFileName);
 122
 123 static const struct IPersistFileVtbl iwavpft = {
 124   IPersistFile_fnQueryInterface,
 125   IPersistFile_fnAddRef,
 126   IPersistFile_fnRelease,
 127   IPersistFile_fnGetClassID,
 128   IPersistFile_fnIsDirty,
 129   IPersistFile_fnLoad,
 130   IPersistFile_fnSave,
 131   IPersistFile_fnSaveCompleted,
 132   IPersistFile_fnGetCurFile
 133 };
 134
 135 static HRESULT WINAPI IAVIStream_fnQueryInterface(IAVIStream*iface,REFIID refiid,LPVOID *obj);
 136 static ULONG   WINAPI IAVIStream_fnAddRef(IAVIStream*iface);
 137 static ULONG   WINAPI IAVIStream_fnRelease(IAVIStream* iface);
 138 static HRESULT WINAPI IAVIStream_fnCreate(IAVIStream*iface,LPARAM lParam1,LPARAM lParam2);
 139 static HRESULT WINAPI IAVIStream_fnInfo(IAVIStream*iface,AVISTREAMINFOW *psi,LONG size);
 140 static LONG    WINAPI IAVIStream_fnFindSample(IAVIStream*iface,LONG pos,LONG flags);
 141 static HRESULT WINAPI IAVIStream_fnReadFormat(IAVIStream*iface,LONG pos,LPVOID format,LONG *formatsize);
 142 static HRESULT WINAPI IAVIStream_fnSetFormat(IAVIStream*iface,LONG pos,LPVOID format,LONG formatsize);
 143 static HRESULT WINAPI IAVIStream_fnRead(IAVIStream*iface,LONG start,LONG samples,LPVOID buffer,LONG buffersize,LONG *bytesread,LONG *samplesread);
 144 static HRESULT WINAPI IAVIStream_fnWrite(IAVIStream*iface,LONG start,LONG samples,LPVOID buffer,LONG buffersize,DWORD flags,LONG *sampwritten,LONG *byteswritten);
 145 static HRESULT WINAPI IAVIStream_fnDelete(IAVIStream*iface,LONG start,LONG samples);
 146 static HRESULT WINAPI IAVIStream_fnReadData(IAVIStream*iface,DWORD fcc,LPVOID lp,LONG *lpread);
 147 static HRESULT WINAPI IAVIStream_fnWriteData(IAVIStream*iface,DWORD fcc,LPVOID lp,LONG size);
 148 static HRESULT WINAPI IAVIStream_fnSetInfo(IAVIStream*iface,AVISTREAMINFOW*info,LONG infolen);
 149
 150 static const struct IAVIStreamVtbl iwavst = {
 151   IAVIStream_fnQueryInterface,
 152   IAVIStream_fnAddRef,
 153   IAVIStream_fnRelease,
 154   IAVIStream_fnCreate,
 155   IAVIStream_fnInfo,
 156   IAVIStream_fnFindSample,
 157   IAVIStream_fnReadFormat,
 158   IAVIStream_fnSetFormat,
 159   IAVIStream_fnRead,
 160   IAVIStream_fnWrite,
 161   IAVIStream_fnDelete,
 162   IAVIStream_fnReadData,
 163   IAVIStream_fnWriteData,
 164   IAVIStream_fnSetInfo
 165 };
 166
 167 typedef struct _IAVIFileImpl IAVIFileImpl;
 168
 169 typedef struct _IPersistFileImpl {
 170   /* IUnknown stuff */
 171   const IPersistFileVtbl *lpVtbl;
 172
 173   /* IPersistFile stuff */
 174   IAVIFileImpl     *paf;
 175 } IPersistFileImpl;
 176
 177 typedef struct _IAVIStreamImpl {
 178   /* IUnknown stuff */
 179   const IAVIStreamVtbl *lpVtbl;
 180
 181   /* IAVIStream stuff */
 182   IAVIFileImpl     *paf;
 183 } IAVIStreamImpl;
 184
 185 struct _IAVIFileImpl {
 186   /* IUnknown stuff */
 187   const IAVIFileVtbl *lpVtbl;
 188   LONG              ref;
 189
 190   /* IAVIFile, IAVIStream stuff... */
 191   IPersistFileImpl  iPersistFile;
 192   IAVIStreamImpl    iAVIStream;
 193
 194   AVIFILEINFOW      fInfo;
 195   AVISTREAMINFOW    sInfo;
 196
 197   LPWAVEFORMATEX    lpFormat;
 198   LONG              cbFormat;
 199
 200   MMCKINFO          ckData;
 201
 202   EXTRACHUNKS       extra;
 203
 204   /* IPersistFile stuff ... */
 205   HMMIO             hmmio;
 206   LPWSTR            szFileName;
 207   UINT              uMode;
 208   BOOL              fDirty;
 209 };
 210
 211 /***********************************************************************/
 212
 213 static HRESULT AVIFILE_LoadFile(IAVIFileImpl *This);
 214 static HRESULT AVIFILE_LoadSunFile(IAVIFileImpl *This);
 215 static HRESULT AVIFILE_SaveFile(const IAVIFileImpl *This);
 216
 217 HRESULT AVIFILE_CreateWAVFile(REFIID riid, LPVOID *ppv)
 218 {
 219   IAVIFileImpl *pfile;
 220   HRESULT       hr;
 221
 222   assert(riid != NULL && ppv != NULL);
 223
 224   *ppv = NULL;
 225
 226   pfile = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IAVIFileImpl));
 227   if (pfile == NULL)
 228     return AVIERR_MEMORY;
 229
 230   pfile->lpVtbl                = &iwavft;
 231   pfile->iPersistFile.lpVtbl   = &iwavpft;
 232   pfile->iAVIStream.lpVtbl     = &iwavst;
 233   pfile->ref = 0;
 234   pfile->iPersistFile.paf = pfile;
 235   pfile->iAVIStream.paf   = pfile;
 236
 237   hr = IAVIFile_QueryInterface((IAVIFile*)pfile, riid, ppv);
 238   if (FAILED(hr))
 239     HeapFree(GetProcessHeap(), 0, pfile);
 240
 241   return hr;
 242 }
 243
 244 static HRESULT WINAPI IAVIFile_fnQueryInterface(IAVIFile *iface, REFIID refiid,
 245                                                 LPVOID *obj)
 246 {
 247   IAVIFileImpl *This = (IAVIFileImpl *)iface;
 248
 249   TRACE("(%p,%s,%p)\n", This, debugstr_guid(refiid), obj);
 250
 251   if (IsEqualGUID(&IID_IUnknown, refiid) ||
 252       IsEqualGUID(&IID_IAVIFile, refiid)) {
 253     *obj = iface;
 254     IAVIFile_AddRef(iface);
 255     return S_OK;
 256   } else if (This->fInfo.dwStreams == 1 &&
 257              IsEqualGUID(&IID_IAVIStream, refiid)) {
 258     *obj = &This->iAVIStream;
 259     IAVIFile_AddRef(iface);
 260     return S_OK;
 261   } else if (IsEqualGUID(&IID_IPersistFile, refiid)) {
 262     *obj = &This->iPersistFile;
 263     IAVIFile_AddRef(iface);
 264     return S_OK;
 265   }
 266
 267   return OLE_E_ENUM_NOMORE;
 268 }
 269
 270 static ULONG WINAPI IAVIFile_fnAddRef(IAVIFile *iface)
 271 {
 272   IAVIFileImpl *This = (IAVIFileImpl *)iface;
 273
 274   TRACE("(%p)\n",iface);
 275
 276   return InterlockedIncrement(&This->ref);
 277 }
 278
 279 static ULONG WINAPI IAVIFile_fnRelease(IAVIFile *iface)
 280 {
 281   IAVIFileImpl *This = (IAVIFileImpl *)iface;
 282   ULONG ref = InterlockedDecrement(&This->ref);
 283
 284   TRACE("(%p)\n",iface);
 285
 286   if (!ref) {
 287     if (This->fDirty) {
 288       /* need to write headers to file */
 289       AVIFILE_SaveFile(This);
 290     }
 291
 292     if (This->lpFormat != NULL) {
 293       HeapFree(GetProcessHeap(), 0, This->lpFormat);
 294       This->lpFormat = NULL;
 295       This->cbFormat = 0;
 296     }
 297     if (This->extra.lp != NULL) {
 298       HeapFree(GetProcessHeap(), 0, This->extra.lp);
 299       This->extra.lp = NULL;
 300       This->extra.cb = 0;
 301     }
 302     HeapFree(GetProcessHeap(), 0, This->szFileName);
 303     This->szFileName = NULL;
 304     if (This->hmmio != NULL) {
 305       mmioClose(This->hmmio, 0);
 306       This->hmmio = NULL;
 307     }
 308
 309     HeapFree(GetProcessHeap(), 0, This);
 310     return 0;
 311   }
 312   return ref;
 313 }
 314
 315 static HRESULT WINAPI IAVIFile_fnInfo(IAVIFile *iface, LPAVIFILEINFOW afi,
 316                                       LONG size)
 317 {
 318   IAVIFileImpl *This = (IAVIFileImpl *)iface;
 319
 320   TRACE("(%p,%p,%d)\n",iface,afi,size);
 321
 322   if (afi == NULL)
 323     return AVIERR_BADPARAM;
 324   if (size < 0)
 325     return AVIERR_BADSIZE;
 326
 327   /* update file info */
 328   This->fInfo.dwFlags = 0;
 329   This->fInfo.dwCaps  = AVIFILECAPS_CANREAD|AVIFILECAPS_CANWRITE;
 330   if (This->lpFormat != NULL) {
 331     assert(This->sInfo.dwScale != 0);
 332
 333     This->fInfo.dwStreams             = 1;
 334     This->fInfo.dwScale               = This->sInfo.dwScale;
 335     This->fInfo.dwRate                = This->sInfo.dwRate;
 336     This->fInfo.dwLength              = This->sInfo.dwLength;
 337     This->fInfo.dwSuggestedBufferSize = This->ckData.cksize;
 338     This->fInfo.dwMaxBytesPerSec =
 339       MulDiv(This->sInfo.dwSampleSize,This->sInfo.dwRate,This->sInfo.dwScale);
 340   }
 341
 342   memcpy(afi, &This->fInfo, min((DWORD)size, sizeof(This->fInfo)));
 343
 344   if ((DWORD)size < sizeof(This->fInfo))
 345     return AVIERR_BUFFERTOOSMALL;
 346   return AVIERR_OK;
 347 }
 348
 349 static HRESULT WINAPI IAVIFile_fnGetStream(IAVIFile *iface, PAVISTREAM *avis,
 350                                            DWORD fccType, LONG lParam)
 351 {
 352   IAVIFileImpl *This = (IAVIFileImpl *)iface;
 353
 354   TRACE("(%p,%p,0x%08X,%d)\n", iface, avis, fccType, lParam);
 355
 356   /* check parameter */
 357   if (avis == NULL)
 358     return AVIERR_BADPARAM;
 359
 360   *avis = NULL;
 361
 362   /* Does our stream exists? */
 363   if (lParam != 0 || This->fInfo.dwStreams == 0)
 364     return AVIERR_NODATA;
 365   if (fccType != 0 && fccType != streamtypeAUDIO)
 366     return AVIERR_NODATA;
 367
 368   *avis = (PAVISTREAM)&This->iAVIStream;
 369   IAVIFile_AddRef(iface);
 370
 371   return AVIERR_OK;
 372 }
 373
 374 static HRESULT WINAPI IAVIFile_fnCreateStream(IAVIFile *iface,PAVISTREAM *avis,
 375                                               LPAVISTREAMINFOW asi)
 376 {
 377   IAVIFileImpl *This = (IAVIFileImpl *)iface;
 378
 379   TRACE("(%p,%p,%p)\n", iface, avis, asi);
 380
 381   /* check parameters */
 382   if (avis == NULL || asi == NULL)
 383     return AVIERR_BADPARAM;
 384
 385   *avis = NULL;
 386
 387   /* We only support one audio stream */
 388   if (This->fInfo.dwStreams != 0 || This->lpFormat != NULL)
 389     return AVIERR_UNSUPPORTED;
 390   if (asi->fccType != streamtypeAUDIO)
 391     return AVIERR_UNSUPPORTED;
 392
 393   /* Does the user have write permission? */
 394   if ((This->uMode & MMIO_RWMODE) == 0)
 395     return AVIERR_READONLY;
 396
 397   This->cbFormat = 0;
 398   This->lpFormat = NULL;
 399
 400   memcpy(&This->sInfo, asi, sizeof(This->sInfo));
 401
 402   /* make sure streaminfo if okay for us */
 403   This->sInfo.fccHandler          = 0;
 404   This->sInfo.dwFlags             = 0;
 405   This->sInfo.dwCaps              = AVIFILECAPS_CANREAD|AVIFILECAPS_CANWRITE;
 406   This->sInfo.dwStart             = 0;
 407   This->sInfo.dwInitialFrames     = 0;
 408   This->sInfo.dwFormatChangeCount = 0;
 409   memset(&This->sInfo.rcFrame, 0, sizeof(This->sInfo.rcFrame));
 410
 411   This->fInfo.dwStreams = 1;
 412   This->fInfo.dwScale   = This->sInfo.dwScale;
 413   This->fInfo.dwRate    = This->sInfo.dwRate;
 414   This->fInfo.dwLength  = This->sInfo.dwLength;
 415
 416   This->ckData.dwDataOffset = 0;
 417   This->ckData.cksize       = 0;
 418
 419   *avis = (PAVISTREAM)&This->iAVIStream;
 420   IAVIFile_AddRef(iface);
 421
 422   return AVIERR_OK;
 423 }
 424
 425 static HRESULT WINAPI IAVIFile_fnWriteData(IAVIFile *iface, DWORD ckid,
 426                                            LPVOID lpData, LONG size)
 427 {
 428   IAVIFileImpl *This = (IAVIFileImpl *)iface;
 429
 430   TRACE("(%p,0x%08X,%p,%d)\n", iface, ckid, lpData, size);
 431
 432   /* check parameters */
 433   if (lpData == NULL)
 434     return AVIERR_BADPARAM;
 435   if (size < 0)
 436     return AVIERR_BADSIZE;
 437
 438   /* Do we have write permission? */
 439   if ((This->uMode & MMIO_RWMODE) == 0)
 440     return AVIERR_READONLY;
 441
 442   This->fDirty = TRUE;
 443
 444   return WriteExtraChunk(&This->extra, ckid, lpData, size);
 445 }
 446
 447 static HRESULT WINAPI IAVIFile_fnReadData(IAVIFile *iface, DWORD ckid,
 448                                           LPVOID lpData, LONG *size)
 449 {
 450   IAVIFileImpl *This = (IAVIFileImpl *)iface;
 451
 452   TRACE("(%p,0x%08X,%p,%p)\n", iface, ckid, lpData, size);
 453
 454   return ReadExtraChunk(&This->extra, ckid, lpData, size);
 455 }
 456
 457 static HRESULT WINAPI IAVIFile_fnEndRecord(IAVIFile *iface)
 458 {
 459   TRACE("(%p)\n",iface);
 460
 461   /* This is only needed for interleaved files.
 462    * We have only one stream, which can't be interleaved.
 463    */
 464   return AVIERR_OK;
 465 }
 466
 467 static HRESULT WINAPI IAVIFile_fnDeleteStream(IAVIFile *iface, DWORD fccType,
 468                                               LONG lParam)
 469 {
 470   IAVIFileImpl *This = (IAVIFileImpl *)iface;
 471
 472   TRACE("(%p,0x%08X,%d)\n", iface, fccType, lParam);
 473
 474   /* check parameter */
 475   if (lParam < 0)
 476     return AVIERR_BADPARAM;
 477
 478   /* Do we have our audio stream? */
 479   if (lParam != 0 || This->fInfo.dwStreams == 0 ||
 480       (fccType != 0 && fccType != streamtypeAUDIO))
 481     return AVIERR_NODATA;
 482
 483   /* Have user write permissions? */
 484   if ((This->uMode & MMIO_RWMODE) == 0)
 485     return AVIERR_READONLY;
 486
 487   HeapFree(GetProcessHeap(), 0, This->lpFormat);
 488   This->lpFormat = NULL;
 489   This->cbFormat = 0;
 490
 491   /* update infos */
 492   This->ckData.dwDataOffset = 0;
 493   This->ckData.cksize       = 0;
 494
 495   This->sInfo.dwScale   = 0;
 496   This->sInfo.dwRate    = 0;
 497   This->sInfo.dwLength  = 0;
 498   This->sInfo.dwSuggestedBufferSize = 0;
 499
 500   This->fInfo.dwStreams = 0;
 501   This->fInfo.dwEditCount++;
 502
 503   This->fDirty = TRUE;
 504
 505   return AVIERR_OK;
 506 }
 507
 508 /***********************************************************************/
 509
 510 static HRESULT WINAPI IPersistFile_fnQueryInterface(IPersistFile *iface,
 511                                                     REFIID refiid, LPVOID *obj)
 512 {
 513   IPersistFileImpl *This = (IPersistFileImpl *)iface;
 514
 515   assert(This->paf != NULL);
 516
 517   return IAVIFile_QueryInterface((PAVIFILE)This->paf, refiid, obj);
 518 }
 519
 520 static ULONG   WINAPI IPersistFile_fnAddRef(IPersistFile *iface)
 521 {
 522   IPersistFileImpl *This = (IPersistFileImpl *)iface;
 523
 524   assert(This->paf != NULL);
 525
 526   return IAVIFile_AddRef((PAVIFILE)This->paf);
 527 }
 528
 529 static ULONG   WINAPI IPersistFile_fnRelease(IPersistFile *iface)
 530 {
 531   IPersistFileImpl *This = (IPersistFileImpl *)iface;
 532
 533   assert(This->paf != NULL);
 534
 535   return IAVIFile_Release((PAVIFILE)This->paf);
 536 }
 537
 538 static HRESULT WINAPI IPersistFile_fnGetClassID(IPersistFile *iface,
 539                                                 LPCLSID pClassID)
 540 {
 541   TRACE("(%p,%p)\n", iface, pClassID);
 542
 543   if (pClassID == NULL)
 544     return AVIERR_BADPARAM;
 545
 546   *pClassID = CLSID_WAVFile;
 547
 548   return AVIERR_OK;
 549 }
 550
 551 static HRESULT WINAPI IPersistFile_fnIsDirty(IPersistFile *iface)
 552 {
 553   IPersistFileImpl *This = (IPersistFileImpl *)iface;
 554
 555   TRACE("(%p)\n", iface);
 556
 557   assert(This->paf != NULL);
 558
 559   return (This->paf->fDirty ? S_OK : S_FALSE);
 560 }
 561
 562 static HRESULT WINAPI IPersistFile_fnLoad(IPersistFile *iface,
 563                                           LPCOLESTR pszFileName, DWORD dwMode)
 564 {
 565   IAVIFileImpl *This = ((IPersistFileImpl*)iface)->paf;
 566
 567   WCHAR wszStreamFmt[50];
 568   INT   len;
 569
 570   TRACE("(%p,%s,0x%08X)\n", iface, debugstr_w(pszFileName), dwMode);
 571
 572   /* check parameter */
 573   if (pszFileName == NULL)
 574     return AVIERR_BADPARAM;
 575
 576   assert(This != NULL);
 577   if (This->hmmio != NULL)
 578     return AVIERR_ERROR; /* No reuse of this object for another file! */
 579
 580   /* remember mode and name */
 581   This->uMode = dwMode;
 582
 583   len = lstrlenW(pszFileName) + 1;
 584   This->szFileName = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
 585   if (This->szFileName == NULL)
 586     return AVIERR_MEMORY;
 587   lstrcpyW(This->szFileName, pszFileName);
 588
 589   /* try to open the file */
 590   This->hmmio = mmioOpenW(This->szFileName, NULL, MMIO_ALLOCBUF | dwMode);
 591   if (This->hmmio == NULL) {
 592     /* mmioOpenW not in native DLLs of Win9x -- try mmioOpenA */
 593     LPSTR szFileName;
 594     len = WideCharToMultiByte(CP_ACP, 0, This->szFileName, -1,
 595                               NULL, 0, NULL, NULL);
 596     szFileName = HeapAlloc(GetProcessHeap(), 0, len * sizeof(CHAR));
 597     if (szFileName == NULL)
 598       return AVIERR_MEMORY;
 599
 600     WideCharToMultiByte(CP_ACP, 0, This->szFileName, -1, szFileName,
 601                         len, NULL, NULL);
 602
 603     This->hmmio = mmioOpenA(szFileName, NULL, MMIO_ALLOCBUF | dwMode);
 604     HeapFree(GetProcessHeap(), 0, szFileName);
 605     if (This->hmmio == NULL)
 606       return AVIERR_FILEOPEN;
 607   }
 608
 609   memset(& This->fInfo, 0, sizeof(This->fInfo));
 610   memset(& This->sInfo, 0, sizeof(This->sInfo));
 611
 612   LoadStringW(AVIFILE_hModule, IDS_WAVEFILETYPE, This->fInfo.szFileType,
 613               sizeof(This->fInfo.szFileType)/sizeof(This->fInfo.szFileType[0]));
 614   if (LoadStringW(AVIFILE_hModule, IDS_WAVESTREAMFORMAT,
 615                   wszStreamFmt, sizeof(wszStreamFmt)/sizeof(wszStreamFmt[0])) > 0) {
 616     wsprintfW(This->sInfo.szName, wszStreamFmt,
 617               AVIFILE_BasenameW(This->szFileName));
 618   }
 619
 620   /* should we create a new file? */
 621   if (dwMode & OF_CREATE) {
 622     /* nothing more to do */
 623     return AVIERR_OK;
 624   } else
 625     return AVIFILE_LoadFile(This);
 626 }
 627
 628 static HRESULT WINAPI IPersistFile_fnSave(IPersistFile *iface,
 629                                           LPCOLESTR pszFileName,BOOL fRemember)
 630 {
 631   TRACE("(%p,%s,%d)\n", iface, debugstr_w(pszFileName), fRemember);
 632
 633   /* We write directly to disk, so nothing to do. */
 634
 635   return AVIERR_OK;
 636 }
 637
 638 static HRESULT WINAPI IPersistFile_fnSaveCompleted(IPersistFile *iface,
 639                                                    LPCOLESTR pszFileName)
 640 {
 641   TRACE("(%p,%s)\n", iface, debugstr_w(pszFileName));
 642
 643   /* We write directly to disk, so nothing to do. */
 644
 645   return AVIERR_OK;
 646 }
 647
 648 static HRESULT WINAPI IPersistFile_fnGetCurFile(IPersistFile *iface,
 649                                                 LPOLESTR *ppszFileName)
 650 {
 651   IPersistFileImpl *This = (IPersistFileImpl *)iface;
 652
 653   TRACE("(%p,%p)\n", iface, ppszFileName);
 654
 655   if (ppszFileName == NULL)
 656     return AVIERR_BADPARAM;
 657
 658   *ppszFileName = NULL;
 659
 660   assert(This->paf != NULL);
 661
 662   if (This->paf->szFileName != NULL) {
 663     int len = lstrlenW(This->paf->szFileName) + 1;
 664
 665     *ppszFileName = CoTaskMemAlloc(len * sizeof(WCHAR));
 666     if (*ppszFileName == NULL)
 667       return AVIERR_MEMORY;
 668
 669     strcpyW(*ppszFileName, This->paf->szFileName);
 670   }
 671
 672   return AVIERR_OK;
 673 }
 674
 675 /***********************************************************************/
 676
 677 static HRESULT WINAPI IAVIStream_fnQueryInterface(IAVIStream *iface,
 678                                                   REFIID refiid, LPVOID *obj)
 679 {
 680   IAVIStreamImpl *This = (IAVIStreamImpl *)iface;
 681
 682   assert(This->paf != NULL);
 683
 684   return IAVIFile_QueryInterface((PAVIFILE)This->paf, refiid, obj);
 685 }
 686
 687 static ULONG WINAPI IAVIStream_fnAddRef(IAVIStream *iface)
 688 {
 689   IAVIStreamImpl *This = (IAVIStreamImpl *)iface;
 690
 691   assert(This->paf != NULL);
 692
 693   return IAVIFile_AddRef((PAVIFILE)This->paf);
 694 }
 695
 696 static ULONG WINAPI IAVIStream_fnRelease(IAVIStream* iface)
 697 {
 698   IAVIStreamImpl *This = (IAVIStreamImpl *)iface;
 699
 700   assert(This->paf != NULL);
 701
 702   return IAVIFile_Release((PAVIFILE)This->paf);
 703 }
 704
 705 static HRESULT WINAPI IAVIStream_fnCreate(IAVIStream *iface, LPARAM lParam1,
 706                                           LPARAM lParam2)
 707 {
 708   TRACE("(%p,0x%08lX,0x%08lX)\n", iface, lParam1, lParam2);
 709
 710   /* This IAVIStream interface needs an WAVFile */
 711   return AVIERR_UNSUPPORTED;
 712 }
 713
 714 static HRESULT WINAPI IAVIStream_fnInfo(IAVIStream *iface,LPAVISTREAMINFOW psi,
 715                                         LONG size)
 716 {
 717   IAVIStreamImpl *This = (IAVIStreamImpl *)iface;
 718
 719   TRACE("(%p,%p,%d)\n", iface, psi, size);
 720
 721   if (psi == NULL)
 722     return AVIERR_BADPARAM;
 723   if (size < 0)
 724     return AVIERR_BADSIZE;
 725
 726   memcpy(psi, &This->paf->sInfo, min((DWORD)size, sizeof(This->paf->sInfo)));
 727
 728   if ((DWORD)size < sizeof(This->paf->sInfo))
 729     return AVIERR_BUFFERTOOSMALL;
 730   return AVIERR_OK;
 731 }
 732
 733 static LONG WINAPI IAVIStream_fnFindSample(IAVIStream *iface, LONG pos,
 734                                            LONG flags)
 735 {
 736   IAVIFileImpl *This = ((IAVIStreamImpl*)iface)->paf;
 737
 738   TRACE("(%p,%d,0x%08X)\n",iface,pos,flags);
 739
 740   /* Do we have data? */
 741   if (This->lpFormat == NULL)
 742     return -1;
 743
 744   /* We don't have an index */
 745   if (flags & FIND_INDEX)
 746     return -1;
 747
 748   if (flags & FIND_FROM_START) {
 749     pos = This->sInfo.dwStart;
 750     flags &= ~(FIND_FROM_START|FIND_PREV);
 751     flags |= FIND_NEXT;
 752   }
 753
 754   if (flags & FIND_FORMAT) {
 755     if ((flags & FIND_NEXT) && pos > 0)
 756       pos = -1;
 757     else
 758       pos = 0;
 759   }
 760
 761   if ((flags & FIND_RET) == FIND_LENGTH ||
 762       (flags & FIND_RET) == FIND_SIZE)
 763     return This->sInfo.dwSampleSize;
 764   if ((flags & FIND_RET) == FIND_OFFSET)
 765     return This->ckData.dwDataOffset + pos * This->sInfo.dwSampleSize;
 766
 767   return pos;
 768 }
 769
 770 static HRESULT WINAPI IAVIStream_fnReadFormat(IAVIStream *iface, LONG pos,
 771                                               LPVOID format, LONG *formatsize)
 772 {
 773   IAVIStreamImpl *This = (IAVIStreamImpl *)iface;
 774
 775   TRACE("(%p,%d,%p,%p)\n", iface, pos, format, formatsize);
 776
 777   if (formatsize == NULL)
 778     return AVIERR_BADPARAM;
 779
 780   /* only interested in needed buffersize? */
 781   if (format == NULL || *formatsize <= 0) {
 782     *formatsize = This->paf->cbFormat;
 783
 784     return AVIERR_OK;
 785   }
 786
 787   /* copy initial format (only as much as will fit) */
 788   memcpy(format, This->paf->lpFormat, min(*formatsize, This->paf->cbFormat));
 789   if (*formatsize < This->paf->cbFormat) {
 790     *formatsize = This->paf->cbFormat;
 791     return AVIERR_BUFFERTOOSMALL;
 792   }
 793
 794   *formatsize = This->paf->cbFormat;
 795   return AVIERR_OK;
 796 }
 797
 798 static HRESULT WINAPI IAVIStream_fnSetFormat(IAVIStream *iface, LONG pos,
 799                                              LPVOID format, LONG formatsize)
 800 {
 801   IAVIFileImpl *This = ((IAVIStreamImpl*)iface)->paf;
 802
 803   TRACE("(%p,%d,%p,%d)\n", iface, pos, format, formatsize);
 804
 805   /* check parameters */
 806   if (format == NULL || formatsize <= sizeof(PCMWAVEFORMAT))
 807     return AVIERR_BADPARAM;
 808
 809   /* We can only do this to an empty wave file, but ignore call
 810    * if still same format */
 811   if (This->lpFormat != NULL) {
 812     if (formatsize != This->cbFormat ||
 813         memcmp(format, This->lpFormat, formatsize) != 0)
 814       return AVIERR_UNSUPPORTED;
 815
 816     return AVIERR_OK;
 817   }
 818
 819   /* only support start at position 0 */
 820   if (pos != 0)
 821     return AVIERR_UNSUPPORTED;
 822
 823   /* Do we have write permission? */
 824   if ((This->uMode & MMIO_RWMODE) == 0)
 825     return AVIERR_READONLY;
 826
 827   /* get memory for format and copy it */
 828   This->lpFormat = HeapAlloc(GetProcessHeap(), 0, formatsize);
 829   if (This->lpFormat == NULL)
 830     return AVIERR_MEMORY;
 831
 832   This->cbFormat = formatsize;
 833   memcpy(This->lpFormat, format, formatsize);
 834
 835   /* update info's about 'data' chunk */
 836   This->ckData.dwDataOffset = formatsize + 7 * sizeof(DWORD);
 837   This->ckData.cksize       = 0;
 838
 839   /* for non-pcm format we need also a 'fact' chunk */
 840   if (This->lpFormat->wFormatTag != WAVE_FORMAT_PCM)
 841     This->ckData.dwDataOffset += 3 * sizeof(DWORD);
 842
 843   /* update stream and file info */
 844   This->sInfo.dwSampleSize = This->lpFormat->nBlockAlign;
 845   This->sInfo.dwScale      = This->lpFormat->nBlockAlign;
 846   This->sInfo.dwRate       = This->lpFormat->nAvgBytesPerSec;
 847   This->sInfo.dwLength     = 0;
 848   This->sInfo.dwSuggestedBufferSize = 0;
 849
 850   return AVIERR_OK;
 851 }
 852
 853 static HRESULT WINAPI IAVIStream_fnRead(IAVIStream *iface, LONG start,
 854                                         LONG samples, LPVOID buffer,
 855                                         LONG buffersize, LPLONG bytesread,
 856                                         LPLONG samplesread)
 857 {
 858   IAVIFileImpl *This = ((IAVIStreamImpl*)iface)->paf;
 859
 860   TRACE("(%p,%d,%d,%p,%d,%p,%p)\n", iface, start, samples, buffer,
 861         buffersize, bytesread, samplesread);
 862
 863   /* clear return parameters if given */
 864   if (bytesread != NULL)
 865     *bytesread = 0;
 866   if (samplesread != NULL)
 867     *samplesread = 0;
 868
 869   /* positions without data */
 870   if (start < 0 || (DWORD)start > This->sInfo.dwLength)
 871     return AVIERR_OK;
 872
 873   /* check samples */
 874   if (samples < 0)
 875     samples = 0;
 876   if (buffersize > 0) {
 877     if (samples > 0)
 878       samples = min((DWORD)samples, buffersize / This->sInfo.dwSampleSize);
 879     else
 880       samples = buffersize / This->sInfo.dwSampleSize;
 881   }
 882
 883   /* limit to end of stream */
 884   if ((DWORD)(start + samples) > This->sInfo.dwLength)
 885     samples = This->sInfo.dwLength - start;
 886
 887   /* request only the sizes? */
 888   if (buffer == NULL || buffersize <= 0) {
 889     /* then I need at least one parameter for it */
 890     if (bytesread == NULL && samplesread == NULL)
 891       return AVIERR_BADPARAM;
 892
 893     if (bytesread != NULL)
 894       *bytesread = samples * This->sInfo.dwSampleSize;
 895     if (samplesread != NULL)
 896       *samplesread = samples;
 897
 898     return AVIERR_OK;
 899   }
 900
 901   /* nothing to read? */
 902   if (samples == 0)
 903     return AVIERR_OK;
 904
 905   /* Can I read at least one sample? */
 906   if ((DWORD)buffersize < This->sInfo.dwSampleSize)
 907     return AVIERR_BUFFERTOOSMALL;
 908
 909   buffersize = samples * This->sInfo.dwSampleSize;
 910
 911   if (mmioSeek(This->hmmio, This->ckData.dwDataOffset
 912                + start * This->sInfo.dwSampleSize, SEEK_SET) == -1)
 913     return AVIERR_FILEREAD;
 914   if (mmioRead(This->hmmio, buffer, buffersize) != buffersize)
 915     return AVIERR_FILEREAD;
 916
 917   /* fill out return parameters if given */
 918   if (bytesread != NULL)
 919     *bytesread = buffersize;
 920   if (samplesread != NULL)
 921     *samplesread = samples;
 922
 923   return AVIERR_OK;
 924 }
 925
 926 static HRESULT WINAPI IAVIStream_fnWrite(IAVIStream *iface, LONG start,
 927                                          LONG samples, LPVOID buffer,
 928                                          LONG buffersize, DWORD flags,
 929                                          LPLONG sampwritten,
 930                                          LPLONG byteswritten)
 931 {
 932   IAVIFileImpl *This = ((IAVIStreamImpl*)iface)->paf;
 933
 934   TRACE("(%p,%d,%d,%p,%d,0x%08X,%p,%p)\n", iface, start, samples,
 935         buffer, buffersize, flags, sampwritten, byteswritten);
 936
 937   /* clear return parameters if given */
 938   if (sampwritten != NULL)
 939     *sampwritten = 0;
 940   if (byteswritten != NULL)
 941     *byteswritten = 0;
 942
 943   /* check parameters */
 944   if (buffer == NULL && (buffersize > 0 || samples > 0))
 945     return AVIERR_BADPARAM;
 946
 947   /* Do we have write permission? */
 948   if ((This->uMode & MMIO_RWMODE) == 0)
 949     return AVIERR_READONLY;
 950
 951   /* < 0 means "append" */
 952   if (start < 0)
 953     start = This->sInfo.dwStart + This->sInfo.dwLength;
 954
 955   /* check buffersize -- must multiple of samplesize */
 956   if (buffersize & ~(This->sInfo.dwSampleSize - 1))
 957     return AVIERR_BADSIZE;
 958
 959   /* do we have anything to write? */
 960   if (buffer != NULL && buffersize > 0) {
 961     This->fDirty = 1;
 962
 963     if (mmioSeek(This->hmmio, This->ckData.dwDataOffset +
 964                  start * This->sInfo.dwSampleSize, SEEK_SET) == -1)
 965       return AVIERR_FILEWRITE;
 966     if (mmioWrite(This->hmmio, buffer, buffersize) != buffersize)
 967       return AVIERR_FILEWRITE;
 968
 969     This->sInfo.dwLength = max(This->sInfo.dwLength, (DWORD)start + samples);
 970     This->ckData.cksize  = max(This->ckData.cksize,
 971                                start * This->sInfo.dwSampleSize + buffersize);
 972
 973     /* fill out return parameters if given */
 974     if (sampwritten != NULL)
 975       *sampwritten = samples;
 976     if (byteswritten != NULL)
 977       *byteswritten = buffersize;
 978   }
 979
 980   return AVIERR_OK;
 981 }
 982
 983 static HRESULT WINAPI IAVIStream_fnDelete(IAVIStream *iface, LONG start,
 984                                           LONG samples)
 985 {
 986   IAVIFileImpl *This = ((IAVIStreamImpl*)iface)->paf;
 987
 988   TRACE("(%p,%d,%d)\n", iface, start, samples);
 989
 990   /* check parameters */
 991   if (start < 0 || samples < 0)
 992     return AVIERR_BADPARAM;
 993
 994   /* Delete before start of stream? */
 995   if ((DWORD)(start + samples) < This->sInfo.dwStart)
 996     return AVIERR_OK;
 997
 998   /* Delete after end of stream? */
 999   if ((DWORD)start > This->sInfo.dwLength)
1000     return AVIERR_OK;
1001
1002   /* For the rest we need write permissions */
1003   if ((This->uMode & MMIO_RWMODE) == 0)
1004     return AVIERR_READONLY;
1005
1006   if ((DWORD)(start + samples) >= This->sInfo.dwLength) {
1007     /* deletion at end */
1008     samples = This->sInfo.dwLength - start;
1009     This->sInfo.dwLength -= samples;
1010     This->ckData.cksize  -= samples * This->sInfo.dwSampleSize;
1011   } else if ((DWORD)start <= This->sInfo.dwStart) {
1012     /* deletion at start */
1013     samples = This->sInfo.dwStart - start;
1014     start   = This->sInfo.dwStart;
1015     This->ckData.dwDataOffset += samples * This->sInfo.dwSampleSize;
1016     This->ckData.cksize       -= samples * This->sInfo.dwSampleSize;
1017   } else {
1018     /* deletion inside stream -- needs playlist and cue's */
1019     FIXME(": deletion inside of stream not supported!\n");
1020
1021     return AVIERR_UNSUPPORTED;
1022   }
1023
1024   This->fDirty = 1;
1025
1026   return AVIERR_OK;
1027 }
1028
1029 static HRESULT WINAPI IAVIStream_fnReadData(IAVIStream *iface, DWORD fcc,
1030                                             LPVOID lp, LPLONG lpread)
1031 {
1032   IAVIStreamImpl *This = (IAVIStreamImpl *)iface;
1033
1034   assert(This->paf != NULL);
1035
1036   return IAVIFile_ReadData((PAVIFILE)This->paf, fcc, lp, lpread);
1037 }
1038
1039 static HRESULT WINAPI IAVIStream_fnWriteData(IAVIStream *iface, DWORD fcc,
1040                                              LPVOID lp, LONG size)
1041 {
1042   IAVIStreamImpl *This = (IAVIStreamImpl *)iface;
1043
1044   return IAVIFile_WriteData((PAVIFILE)This->paf, fcc, lp, size);
1045 }
1046
1047 static HRESULT WINAPI IAVIStream_fnSetInfo(IAVIStream *iface,
1048                                            LPAVISTREAMINFOW info, LONG infolen)
1049 {
1050   FIXME("(%p,%p,%d): stub\n", iface, info, infolen);
1051
1052   return E_FAIL;
1053 }
1054
1055 /***********************************************************************/
1056
1057 static HRESULT AVIFILE_LoadFile(IAVIFileImpl *This)
1058 {
1059   MMCKINFO ckRIFF;
1060   MMCKINFO ck;
1061
1062   This->sInfo.dwLength = 0; /* just to be sure */
1063   This->fDirty = FALSE;
1064
1065   /* search for RIFF chunk */
1066   ckRIFF.fccType = 0; /* find any */
1067   if (mmioDescend(This->hmmio, &ckRIFF, NULL, MMIO_FINDRIFF) != S_OK) {
1068     return AVIFILE_LoadSunFile(This);
1069   }
1070
1071   if (ckRIFF.fccType != formtypeWAVE)
1072     return AVIERR_BADFORMAT;
1073
1074   /* search WAVE format chunk */
1075   ck.ckid = ckidWAVEFORMAT;
1076   if (FindChunkAndKeepExtras(&This->extra, This->hmmio, &ck,
1077                              &ckRIFF, MMIO_FINDCHUNK) != S_OK)
1078     return AVIERR_FILEREAD;
1079
1080   /* get memory for format and read it */
1081   This->lpFormat = HeapAlloc(GetProcessHeap(), 0, ck.cksize);
1082   if (This->lpFormat == NULL)
1083     return AVIERR_FILEREAD;
1084   This->cbFormat = ck.cksize;
1085
1086   if (mmioRead(This->hmmio, (HPSTR)This->lpFormat, ck.cksize) != ck.cksize)
1087     return AVIERR_FILEREAD;
1088   if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
1089     return AVIERR_FILEREAD;
1090
1091   /* Non-pcm formats have a fact chunk.
1092    * We don't need it, so simply add it to the extra chunks.
1093    */
1094
1095   /* find the big data chunk */
1096   This->ckData.ckid = ckidWAVEDATA;
1097   if (FindChunkAndKeepExtras(&This->extra, This->hmmio, &This->ckData,
1098                              &ckRIFF, MMIO_FINDCHUNK) != S_OK)
1099     return AVIERR_FILEREAD;
1100
1101   memset(&This->sInfo, 0, sizeof(This->sInfo));
1102   This->sInfo.fccType      = streamtypeAUDIO;
1103   This->sInfo.dwRate       = This->lpFormat->nAvgBytesPerSec;
1104   This->sInfo.dwSampleSize =
1105     This->sInfo.dwScale    = This->lpFormat->nBlockAlign;
1106   This->sInfo.dwLength     = This->ckData.cksize / This->lpFormat->nBlockAlign;
1107   This->sInfo.dwSuggestedBufferSize = This->ckData.cksize;
1108
1109   This->fInfo.dwStreams = 1;
1110
1111   if (mmioAscend(This->hmmio, &This->ckData, 0) != S_OK) {
1112     /* seems to be truncated */
1113     WARN(": file seems to be truncated!\n");
1114     This->ckData.cksize  = mmioSeek(This->hmmio, 0, SEEK_END) -
1115       This->ckData.dwDataOffset;
1116     This->sInfo.dwLength = This->ckData.cksize / This->lpFormat->nBlockAlign;
1117     This->sInfo.dwSuggestedBufferSize = This->ckData.cksize;
1118   }
1119
1120   /* ignore errors */
1121   FindChunkAndKeepExtras(&This->extra, This->hmmio, &ck, &ckRIFF, 0);
1122
1123   return AVIERR_OK;
1124 }
1125
1126 static HRESULT AVIFILE_LoadSunFile(IAVIFileImpl *This)
1127 {
1128   SUNAUDIOHEADER auhdr;
1129
1130   mmioSeek(This->hmmio, 0, SEEK_SET);
1131   if (mmioRead(This->hmmio, (HPSTR)&auhdr, sizeof(auhdr)) != sizeof(auhdr))
1132     return AVIERR_FILEREAD;
1133
1134   if (auhdr.fccType == 0x0064732E) {
1135     /* header in little endian */
1136     This->ckData.dwDataOffset = LE2H_DWORD(auhdr.offset);
1137     This->ckData.cksize       = LE2H_DWORD(auhdr.size);
1138
1139     auhdr.encoding   = LE2H_DWORD(auhdr.encoding);
1140     auhdr.sampleRate = LE2H_DWORD(auhdr.sampleRate);
1141     auhdr.channels   = LE2H_DWORD(auhdr.channels);
1142   } else if (auhdr.fccType == mmioFOURCC('.','s','n','d')) {
1143     /* header in big endian */
1144     This->ckData.dwDataOffset = BE2H_DWORD(auhdr.offset);
1145     This->ckData.cksize       = BE2H_DWORD(auhdr.size);
1146
1147     auhdr.encoding   = BE2H_DWORD(auhdr.encoding);
1148     auhdr.sampleRate = BE2H_DWORD(auhdr.sampleRate);
1149     auhdr.channels   = BE2H_DWORD(auhdr.channels);
1150   } else
1151     return AVIERR_FILEREAD;
1152
1153   if (auhdr.channels < 1)
1154     return AVIERR_BADFORMAT;
1155
1156   /* get size of header */
1157   switch(auhdr.encoding) {
1158   case AU_ENCODING_ADPCM_G721_32:
1159     This->cbFormat = sizeof(G721_ADPCMWAVEFORMAT); break;
1160   case AU_ENCODING_ADPCM_G723_24:
1161     This->cbFormat = sizeof(G723_ADPCMWAVEFORMAT); break;
1162   case AU_ENCODING_ADPCM_G722:
1163   case AU_ENCODING_ADPCM_G723_5:
1164     WARN("unsupported Sun audio format %d\n", auhdr.encoding);
1165     return AVIERR_UNSUPPORTED; /* FIXME */
1166   default:
1167     This->cbFormat = sizeof(WAVEFORMATEX); break;
1168   };
1169
1170   This->lpFormat = HeapAlloc(GetProcessHeap(), 0, This->cbFormat);
1171   if (This->lpFormat == NULL)
1172     return AVIERR_MEMORY;
1173
1174   This->lpFormat->nChannels      = auhdr.channels;
1175   This->lpFormat->nSamplesPerSec = auhdr.sampleRate;
1176   switch(auhdr.encoding) {
1177   case AU_ENCODING_ULAW_8:
1178     This->lpFormat->wFormatTag     = WAVE_FORMAT_MULAW;
1179     This->lpFormat->wBitsPerSample = 8;
1180     break;
1181   case AU_ENCODING_PCM_8:
1182     This->lpFormat->wFormatTag     = WAVE_FORMAT_PCM;
1183     This->lpFormat->wBitsPerSample = 8;
1184     break;
1185   case AU_ENCODING_PCM_16:
1186     This->lpFormat->wFormatTag     = WAVE_FORMAT_PCM;
1187     This->lpFormat->wBitsPerSample = 16;
1188     break;
1189   case AU_ENCODING_PCM_24:
1190     This->lpFormat->wFormatTag     = WAVE_FORMAT_PCM;
1191     This->lpFormat->wBitsPerSample = 24;
1192     break;
1193   case AU_ENCODING_PCM_32:
1194     This->lpFormat->wFormatTag     = WAVE_FORMAT_PCM;
1195     This->lpFormat->wBitsPerSample = 32;
1196     break;
1197   case AU_ENCODING_ALAW_8:
1198     This->lpFormat->wFormatTag     = WAVE_FORMAT_ALAW;
1199     This->lpFormat->wBitsPerSample = 8;
1200     break;
1201   case AU_ENCODING_ADPCM_G721_32:
1202     This->lpFormat->wFormatTag     = WAVE_FORMAT_G721_ADPCM;
1203     This->lpFormat->wBitsPerSample = (3*5*8);
1204     This->lpFormat->nBlockAlign    = 15*15*8;
1205     This->lpFormat->cbSize         = sizeof(WORD);
1206     ((LPG721_ADPCMWAVEFORMAT)This->lpFormat)->nAuxBlockSize = 0;
1207     break;
1208   case AU_ENCODING_ADPCM_G723_24:
1209     This->lpFormat->wFormatTag     = WAVE_FORMAT_G723_ADPCM;
1210     This->lpFormat->wBitsPerSample = (3*5*8);
1211     This->lpFormat->nBlockAlign    = 15*15*8;
1212     This->lpFormat->cbSize         = 2*sizeof(WORD);
1213     ((LPG723_ADPCMWAVEFORMAT)This->lpFormat)->cbExtraSize   = 0;
1214     ((LPG723_ADPCMWAVEFORMAT)This->lpFormat)->nAuxBlockSize = 0;
1215     break;
1216   default:
1217     WARN("unsupported Sun audio format %d\n", auhdr.encoding);
1218     return AVIERR_UNSUPPORTED;
1219   };
1220
1221   This->lpFormat->nBlockAlign =
1222     (This->lpFormat->nChannels * This->lpFormat->wBitsPerSample) / 8;
1223   if (This->lpFormat->nBlockAlign == 0 && This->lpFormat->wBitsPerSample < 8)
1224     This->lpFormat->nBlockAlign++;
1225   This->lpFormat->nAvgBytesPerSec =
1226     This->lpFormat->nBlockAlign * This->lpFormat->nSamplesPerSec;
1227
1228   This->fDirty = 0;
1229
1230   This->sInfo.fccType               = streamtypeAUDIO;
1231   This->sInfo.fccHandler            = 0;
1232   This->sInfo.dwFlags               = 0;
1233   This->sInfo.wPriority             = 0;
1234   This->sInfo.wLanguage             = 0;
1235   This->sInfo.dwInitialFrames       = 0;
1236   This->sInfo.dwScale               = This->lpFormat->nBlockAlign;
1237   This->sInfo.dwRate                = This->lpFormat->nAvgBytesPerSec;
1238   This->sInfo.dwStart               = 0;
1239   This->sInfo.dwLength              =
1240     This->ckData.cksize / This->lpFormat->nBlockAlign;
1241   This->sInfo.dwSuggestedBufferSize = This->sInfo.dwLength;
1242   This->sInfo.dwSampleSize          = This->lpFormat->nBlockAlign;
1243
1244   This->fInfo.dwStreams = 1;
1245   This->fInfo.dwScale   = 1;
1246   This->fInfo.dwRate    = This->lpFormat->nSamplesPerSec;
1247   This->fInfo.dwLength  =
1248     MulDiv(This->ckData.cksize, This->lpFormat->nSamplesPerSec,
1249            This->lpFormat->nAvgBytesPerSec);
1250
1251   return AVIERR_OK;
1252 }
1253
1254 static HRESULT AVIFILE_SaveFile(const IAVIFileImpl *This)
1255 {
1256   MMCKINFO ckRIFF;
1257   MMCKINFO ck;
1258
1259   mmioSeek(This->hmmio, 0, SEEK_SET);
1260
1261   /* create the RIFF chunk with formtype WAVE */
1262   ckRIFF.fccType = formtypeWAVE;
1263   ckRIFF.cksize  = 0;
1264   if (mmioCreateChunk(This->hmmio, &ckRIFF, MMIO_CREATERIFF) != S_OK)
1265     return AVIERR_FILEWRITE;
1266
1267   /* the next chunk is the format */
1268   ck.ckid   = ckidWAVEFORMAT;
1269   ck.cksize = This->cbFormat;
1270   if (mmioCreateChunk(This->hmmio, &ck, 0) != S_OK)
1271     return AVIERR_FILEWRITE;
1272   if (This->lpFormat != NULL && This->cbFormat > 0) {
1273     if (mmioWrite(This->hmmio, (HPSTR)This->lpFormat, ck.cksize) != ck.cksize)
1274       return AVIERR_FILEWRITE;
1275   }
1276   if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
1277     return AVIERR_FILEWRITE;
1278
1279   /* fact chunk is needed for non-pcm waveforms */
1280   if (This->lpFormat != NULL && This->cbFormat > sizeof(PCMWAVEFORMAT) &&
1281       This->lpFormat->wFormatTag != WAVE_FORMAT_PCM) {
1282     WAVEFORMATEX wfx;
1283     DWORD        dwFactLength;
1284     HACMSTREAM   has;
1285
1286     /* try to open an appropriate audio codec to figure out
1287      * data for fact-chunk */
1288     wfx.wFormatTag = WAVE_FORMAT_PCM;
1289     if (acmFormatSuggest(NULL, This->lpFormat, &wfx,
1290                          sizeof(wfx), ACM_FORMATSUGGESTF_WFORMATTAG)) {
1291       acmStreamOpen(&has, NULL, This->lpFormat, &wfx, NULL,
1292                     0, 0, ACM_STREAMOPENF_NONREALTIME);
1293       acmStreamSize(has, This->ckData.cksize, &dwFactLength,
1294                     ACM_STREAMSIZEF_SOURCE);
1295       dwFactLength /= wfx.nBlockAlign;
1296       acmStreamClose(has, 0);
1297
1298       /* create the fact chunk */
1299       ck.ckid   = ckidWAVEFACT;
1300       ck.cksize = sizeof(dwFactLength);
1301
1302       /* test for enough space before data chunk */
1303       if (mmioSeek(This->hmmio, 0, SEEK_CUR) > This->ckData.dwDataOffset
1304           - ck.cksize - 4 * sizeof(DWORD))
1305         return AVIERR_FILEWRITE;
1306       if (mmioCreateChunk(This->hmmio, &ck, 0) != S_OK)
1307         return AVIERR_FILEWRITE;
1308       if (mmioWrite(This->hmmio, (HPSTR)&dwFactLength, ck.cksize) != ck.cksize)
1309         return AVIERR_FILEWRITE;
1310       if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
1311         return AVIERR_FILEWRITE;
1312     } else
1313       ERR(": fact chunk is needed for non-pcm files -- currently no codec found, so skipped!\n");
1314   }
1315
1316   /* if there was extra stuff, we need to fill it with JUNK */
1317   if (mmioSeek(This->hmmio, 0, SEEK_CUR) + 2 * sizeof(DWORD) < This->ckData.dwDataOffset) {
1318     ck.ckid   = ckidAVIPADDING;
1319     ck.cksize = 0;
1320     if (mmioCreateChunk(This->hmmio, &ck, 0) != S_OK)
1321       return AVIERR_FILEWRITE;
1322
1323     if (mmioSeek(This->hmmio, This->ckData.dwDataOffset
1324                  - 2 * sizeof(DWORD), SEEK_SET) == -1)
1325       return AVIERR_FILEWRITE;
1326     if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
1327       return AVIERR_FILEWRITE;
1328   }
1329
1330   /* create the data chunk */
1331   ck.ckid   = ckidWAVEDATA;
1332   ck.cksize = This->ckData.cksize;
1333   if (mmioCreateChunk(This->hmmio, &ck, 0) != S_OK)
1334     return AVIERR_FILEWRITE;
1335   if (mmioSeek(This->hmmio, This->ckData.cksize, SEEK_CUR) == -1)
1336     return AVIERR_FILEWRITE;
1337   if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
1338     return AVIERR_FILEWRITE;
1339
1340   /* some optional extra chunks? */
1341   if (This->extra.lp != NULL && This->extra.cb > 0) {
1342     /* chunk headers are already in structure */
1343     if (mmioWrite(This->hmmio, This->extra.lp, This->extra.cb) != This->extra.cb)
1344       return AVIERR_FILEWRITE;
1345   }
1346
1347   /* close RIFF chunk */
1348   if (mmioAscend(This->hmmio, &ckRIFF, 0) != S_OK)
1349     return AVIERR_FILEWRITE;
1350   if (mmioFlush(This->hmmio, 0) != S_OK)
1351     return AVIERR_FILEWRITE;
1352
1353   return AVIERR_OK;
1354 }