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