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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19 #define COM_NO_WINDOWS_H
  20 #include <assert.h>
  21 #include <stdarg.h>
  22
  23 #include "windef.h"
  24 #include "winbase.h"
  25 #include "wingdi.h"
  26 #include "winuser.h"
  27 #include "winnls.h"
  28 #include "winerror.h"
  29 #include "windowsx.h"
  30 #include "mmsystem.h"
  31 #include "vfw.h"
  32 #include "msacm.h"
  33
  34 #include "avifile_private.h"
  35 #include "extrachunk.h"
  36
  37 #include "wine/debug.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(avifile);
  40
  41 /***********************************************************************/
  42
  43 #define formtypeWAVE    mmioFOURCC('W','A','V','E')
  44 #define ckidWAVEFORMAT  mmioFOURCC('f','m','t',' ')
  45 #define ckidWAVEFACT    mmioFOURCC('f','a','c','t')
  46 #define ckidWAVEDATA    mmioFOURCC('d','a','t','a')
  47
  48 /***********************************************************************/
  49
  50 #define ENDIAN_SWAPWORD(x)  ((((x) >> 8) & 0xFF) | (((x) & 0xFF) << 8))
  51 #define ENDIAN_SWAPDWORD(x) (ENDIAN_SWAPWORD((x >> 16) & 0xFFFF) | \
  52                              ENDIAN_SWAPWORD(x & 0xFFFF) << 16)
  53
  54 #ifdef WORDS_BIGENDIAN
  55 #define BE2H_WORD(x)  (x)
  56 #define BE2H_DWORD(x) (x)
  57 #define LE2H_WORD(x)  ENDIAN_SWAPWORD(x)
  58 #define LE2H_DWORD(x) ENDIAN_SWAPDWORD(x)
  59 #else
  60 #define BE2H_WORD(x)  ENDIAN_SWAPWORD(x)
  61 #define BE2H_DWORD(x) ENDIAN_SWAPDWORD(x)
  62 #define LE2H_WORD(x)  (x)
  63 #define LE2H_DWORD(x) (x)
  64 #endif
  65
  66 typedef struct {
  67   FOURCC  fccType;
  68   DWORD   offset;
  69   DWORD   size;
  70   INT     encoding;
  71   DWORD   sampleRate;
  72   DWORD   channels;
  73 } SUNAUDIOHEADER;
  74
  75 #define AU_ENCODING_ULAW_8                 1
  76 #define AU_ENCODING_PCM_8                  2
  77 #define AU_ENCODING_PCM_16                 3
  78 #define AU_ENCODING_PCM_24                 4
  79 #define AU_ENCODING_PCM_32                 5
  80 #define AU_ENCODING_FLOAT                  6
  81 #define AU_ENCODING_DOUBLE                 7
  82 #define AU_ENCODING_ADPCM_G721_32         23
  83 #define AU_ENCODING_ADPCM_G722            24
  84 #define AU_ENCODING_ADPCM_G723_24         25
  85 #define AU_ENCODING_ADPCM_G723_5          26
  86 #define AU_ENCODING_ALAW_8                27
  87
  88 /***********************************************************************/
  89
  90 static HRESULT WINAPI IAVIFile_fnQueryInterface(IAVIFile* iface,REFIID refiid,LPVOID *obj);
  91 static ULONG   WINAPI IAVIFile_fnAddRef(IAVIFile* iface);
  92 static ULONG   WINAPI IAVIFile_fnRelease(IAVIFile* iface);
  93 static HRESULT WINAPI IAVIFile_fnInfo(IAVIFile*iface,AVIFILEINFOW*afi,LONG size);
  94 static HRESULT WINAPI IAVIFile_fnGetStream(IAVIFile*iface,PAVISTREAM*avis,DWORD fccType,LONG lParam);
  95 static HRESULT WINAPI IAVIFile_fnCreateStream(IAVIFile*iface,PAVISTREAM*avis,AVISTREAMINFOW*asi);
  96 static HRESULT WINAPI IAVIFile_fnWriteData(IAVIFile*iface,DWORD ckid,LPVOID lpData,LONG size);
  97 static HRESULT WINAPI IAVIFile_fnReadData(IAVIFile*iface,DWORD ckid,LPVOID lpData,LONG *size);
  98 static HRESULT WINAPI IAVIFile_fnEndRecord(IAVIFile*iface);
  99 static HRESULT WINAPI IAVIFile_fnDeleteStream(IAVIFile*iface,DWORD fccType,LONG lParam);
 100
 101 struct ICOM_VTABLE(IAVIFile) iwavft = {
 102   ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
 103   IAVIFile_fnQueryInterface,
 104   IAVIFile_fnAddRef,
 105   IAVIFile_fnRelease,
 106   IAVIFile_fnInfo,
 107   IAVIFile_fnGetStream,
 108   IAVIFile_fnCreateStream,
 109   IAVIFile_fnWriteData,
 110   IAVIFile_fnReadData,
 111   IAVIFile_fnEndRecord,
 112   IAVIFile_fnDeleteStream
 113 };
 114
 115 static HRESULT WINAPI IPersistFile_fnQueryInterface(IPersistFile*iface,REFIID refiid,LPVOID*obj);
 116 static ULONG   WINAPI IPersistFile_fnAddRef(IPersistFile*iface);
 117 static ULONG   WINAPI IPersistFile_fnRelease(IPersistFile*iface);
 118 static HRESULT WINAPI IPersistFile_fnGetClassID(IPersistFile*iface,CLSID*pClassID);
 119 static HRESULT WINAPI IPersistFile_fnIsDirty(IPersistFile*iface);
 120 static HRESULT WINAPI IPersistFile_fnLoad(IPersistFile*iface,LPCOLESTR pszFileName,DWORD dwMode);
 121 static HRESULT WINAPI IPersistFile_fnSave(IPersistFile*iface,LPCOLESTR pszFileName,BOOL fRemember);
 122 static HRESULT WINAPI IPersistFile_fnSaveCompleted(IPersistFile*iface,LPCOLESTR pszFileName);
 123 static HRESULT WINAPI IPersistFile_fnGetCurFile(IPersistFile*iface,LPOLESTR*ppszFileName);
 124
 125 struct ICOM_VTABLE(IPersistFile) iwavpft = {
 126   ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
 127   IPersistFile_fnQueryInterface,
 128   IPersistFile_fnAddRef,
 129   IPersistFile_fnRelease,
 130   IPersistFile_fnGetClassID,
 131   IPersistFile_fnIsDirty,
 132   IPersistFile_fnLoad,
 133   IPersistFile_fnSave,
 134   IPersistFile_fnSaveCompleted,
 135   IPersistFile_fnGetCurFile
 136 };
 137
 138 static HRESULT WINAPI IAVIStream_fnQueryInterface(IAVIStream*iface,REFIID refiid,LPVOID *obj);
 139 static ULONG   WINAPI IAVIStream_fnAddRef(IAVIStream*iface);
 140 static ULONG   WINAPI IAVIStream_fnRelease(IAVIStream* iface);
 141 static HRESULT WINAPI IAVIStream_fnCreate(IAVIStream*iface,LPARAM lParam1,LPARAM lParam2);
 142 static HRESULT WINAPI IAVIStream_fnInfo(IAVIStream*iface,AVISTREAMINFOW *psi,LONG size);
 143 static LONG    WINAPI IAVIStream_fnFindSample(IAVIStream*iface,LONG pos,LONG flags);
 144 static HRESULT WINAPI IAVIStream_fnReadFormat(IAVIStream*iface,LONG pos,LPVOID format,LONG *formatsize);
 145 static HRESULT WINAPI IAVIStream_fnSetFormat(IAVIStream*iface,LONG pos,LPVOID format,LONG formatsize);
 146 static HRESULT WINAPI IAVIStream_fnRead(IAVIStream*iface,LONG start,LONG samples,LPVOID buffer,LONG buffersize,LONG *bytesread,LONG *samplesread);
 147 static HRESULT WINAPI IAVIStream_fnWrite(IAVIStream*iface,LONG start,LONG samples,LPVOID buffer,LONG buffersize,DWORD flags,LONG *sampwritten,LONG *byteswritten);
 148 static HRESULT WINAPI IAVIStream_fnDelete(IAVIStream*iface,LONG start,LONG samples);
 149 static HRESULT WINAPI IAVIStream_fnReadData(IAVIStream*iface,DWORD fcc,LPVOID lp,LONG *lpread);
 150 static HRESULT WINAPI IAVIStream_fnWriteData(IAVIStream*iface,DWORD fcc,LPVOID lp,LONG size);
 151 static HRESULT WINAPI IAVIStream_fnSetInfo(IAVIStream*iface,AVISTREAMINFOW*info,LONG infolen);
 152
 153 struct ICOM_VTABLE(IAVIStream) iwavst = {
 154   ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
 155   IAVIStream_fnQueryInterface,
 156   IAVIStream_fnAddRef,
 157   IAVIStream_fnRelease,
 158   IAVIStream_fnCreate,
 159   IAVIStream_fnInfo,
 160   IAVIStream_fnFindSample,
 161   IAVIStream_fnReadFormat,
 162   IAVIStream_fnSetFormat,
 163   IAVIStream_fnRead,
 164   IAVIStream_fnWrite,
 165   IAVIStream_fnDelete,
 166   IAVIStream_fnReadData,
 167   IAVIStream_fnWriteData,
 168   IAVIStream_fnSetInfo
 169 };
 170
 171 typedef struct _IAVIFileImpl IAVIFileImpl;
 172
 173 typedef struct _IPersistFileImpl {
 174   /* IUnknown stuff */
 175   ICOM_VFIELD(IPersistFile);
 176
 177   /* IPersistFile stuff */
 178   IAVIFileImpl     *paf;
 179 } IPersistFileImpl;
 180
 181 typedef struct _IAVIStreamImpl {
 182   /* IUnknown stuff */
 183   ICOM_VFIELD(IAVIStream);
 184
 185   /* IAVIStream stuff */
 186   IAVIFileImpl     *paf;
 187 } IAVIStreamImpl;
 188
 189 struct _IAVIFileImpl {
 190   /* IUnknown stuff */
 191   ICOM_VFIELD(IAVIFile);
 192   DWORD             ref;
 193
 194   /* IAVIFile, IAVIStream stuff... */
 195   IPersistFileImpl  iPersistFile;
 196   IAVIStreamImpl    iAVIStream;
 197
 198   AVIFILEINFOW      fInfo;
 199   AVISTREAMINFOW    sInfo;
 200
 201   LPWAVEFORMATEX    lpFormat;
 202   LONG              cbFormat;
 203
 204   MMCKINFO          ckData;
 205
 206   EXTRACHUNKS       extra;
 207
 208   /* IPersistFile stuff ... */
 209   HMMIO             hmmio;
 210   LPWSTR            szFileName;
 211   UINT              uMode;
 212   BOOL              fDirty;
 213 };
 214
 215 /***********************************************************************/
 216
 217 static HRESULT AVIFILE_LoadFile(IAVIFileImpl *This);
 218 static HRESULT AVIFILE_LoadSunFile(IAVIFileImpl *This);
 219 static HRESULT AVIFILE_SaveFile(IAVIFileImpl *This);
 220
 221 HRESULT AVIFILE_CreateWAVFile(REFIID riid, LPVOID *ppv)
 222 {
 223   IAVIFileImpl *pfile;
 224   HRESULT       hr;
 225
 226   assert(riid != NULL && ppv != NULL);
 227
 228   *ppv = NULL;
 229
 230   pfile = (IAVIFileImpl*)LocalAlloc(LPTR, sizeof(IAVIFileImpl));
 231   if (pfile == NULL)
 232     return AVIERR_MEMORY;
 233
 234   pfile->lpVtbl                = &iwavft;
 235   pfile->iPersistFile.lpVtbl   = &iwavpft;
 236   pfile->iAVIStream.lpVtbl     = &iwavst;
 237   pfile->ref = 0;
 238   pfile->iPersistFile.paf = pfile;
 239   pfile->iAVIStream.paf   = pfile;
 240
 241   hr = IUnknown_QueryInterface((IUnknown*)pfile, riid, ppv);
 242   if (FAILED(hr))
 243     LocalFree((HLOCAL)pfile);
 244
 245   return hr;
 246 }
 247
 248 static HRESULT WINAPI IAVIFile_fnQueryInterface(IAVIFile *iface, REFIID refiid,
 249                                                 LPVOID *obj)
 250 {
 251   ICOM_THIS(IAVIFileImpl,iface);
 252
 253   TRACE("(%p,%s,%p)\n", This, debugstr_guid(refiid), obj);
 254
 255   if (IsEqualGUID(&IID_IUnknown, refiid) ||
 256       IsEqualGUID(&IID_IAVIFile, refiid)) {
 257     *obj = iface;
 258     return S_OK;
 259   } else if (This->fInfo.dwStreams == 1 &&
 260              IsEqualGUID(&IID_IAVIStream, refiid)) {
 261     *obj = &This->iAVIStream;
 262     return S_OK;
 263   } else if (IsEqualGUID(&IID_IPersistFile, refiid)) {
 264     *obj = &This->iPersistFile;
 265     return S_OK;
 266   }
 267
 268   return OLE_E_ENUM_NOMORE;
 269 }
 270
 271 static ULONG WINAPI IAVIFile_fnAddRef(IAVIFile *iface)
 272 {
 273   ICOM_THIS(IAVIFileImpl,iface);
 274
 275   TRACE("(%p)\n",iface);
 276
 277   return ++(This->ref);
 278 }
 279
 280 static ULONG WINAPI IAVIFile_fnRelease(IAVIFile *iface)
 281 {
 282   ICOM_THIS(IAVIFileImpl,iface);
 283
 284   TRACE("(%p)\n",iface);
 285
 286   if (!--(This->ref)) {
 287     if (This->fDirty) {
 288       /* need to write headers to file */
 289       AVIFILE_SaveFile(This);
 290     }
 291
 292     if (This->lpFormat != NULL) {
 293       GlobalFreePtr(This->lpFormat);
 294       This->lpFormat = NULL;
 295       This->cbFormat = 0;
 296     }
 297     if (This->extra.lp != NULL) {
 298       GlobalFreePtr(This->extra.lp);
 299       This->extra.lp = NULL;
 300       This->extra.cb = 0;
 301     }
 302     if (This->szFileName != NULL) {
 303       LocalFree((HLOCAL)This->szFileName);
 304       This->szFileName = NULL;
 305     }
 306     if (This->hmmio != NULL) {
 307       mmioClose(This->hmmio, 0);
 308       This->hmmio = NULL;
 309     }
 310
 311     LocalFree((HLOCAL)This);
 312     return 0;
 313   }
 314   return This->ref;
 315 }
 316
 317 static HRESULT WINAPI IAVIFile_fnInfo(IAVIFile *iface, LPAVIFILEINFOW afi,
 318                                       LONG size)
 319 {
 320   ICOM_THIS(IAVIFileImpl,iface);
 321
 322   TRACE("(%p,%p,%ld)\n",iface,afi,size);
 323
 324   if (afi == NULL)
 325     return AVIERR_BADPARAM;
 326   if (size < 0)
 327     return AVIERR_BADSIZE;
 328
 329   /* update file info */
 330   This->fInfo.dwFlags = 0;
 331   This->fInfo.dwCaps  = AVIFILECAPS_CANREAD|AVIFILECAPS_CANWRITE;
 332   if (This->lpFormat != NULL) {
 333     assert(This->sInfo.dwScale != 0);
 334
 335     This->fInfo.dwStreams             = 1;
 336     This->fInfo.dwScale               = This->sInfo.dwScale;
 337     This->fInfo.dwRate                = This->sInfo.dwRate;
 338     This->fInfo.dwLength              = This->sInfo.dwLength;
 339     This->fInfo.dwSuggestedBufferSize = This->ckData.cksize;
 340     This->fInfo.dwMaxBytesPerSec =
 341       MulDiv(This->sInfo.dwSampleSize,This->sInfo.dwRate,This->sInfo.dwScale);
 342   }
 343
 344   memcpy(afi, &This->fInfo, min((DWORD)size, sizeof(This->fInfo)));
 345
 346   if ((DWORD)size < sizeof(This->fInfo))
 347     return AVIERR_BUFFERTOOSMALL;
 348   return AVIERR_OK;
 349 }
 350
 351 static HRESULT WINAPI IAVIFile_fnGetStream(IAVIFile *iface, PAVISTREAM *avis,
 352                                            DWORD fccType, LONG lParam)
 353 {
 354   ICOM_THIS(IAVIFileImpl,iface);
 355
 356   TRACE("(%p,%p,0x%08lX,%ld)\n", iface, avis, fccType, lParam);
 357
 358   /* check parameter */
 359   if (avis == NULL)
 360     return AVIERR_BADPARAM;
 361
 362   *avis = NULL;
 363
 364   /* Does our stream exists? */
 365   if (lParam != 0 || This->fInfo.dwStreams == 0)
 366     return AVIERR_NODATA;
 367   if (fccType != 0 && fccType != streamtypeAUDIO)
 368     return AVIERR_NODATA;
 369
 370   *avis = (PAVISTREAM)&This->iAVIStream;
 371   IAVIFile_AddRef(iface);
 372
 373   return AVIERR_OK;
 374 }
 375
 376 static HRESULT WINAPI IAVIFile_fnCreateStream(IAVIFile *iface,PAVISTREAM *avis,
 377                                               LPAVISTREAMINFOW asi)
 378 {
 379   ICOM_THIS(IAVIFileImpl,iface);
 380
 381   TRACE("(%p,%p,%p)\n", iface, avis, asi);
 382
 383   /* check parameters */
 384   if (avis == NULL || asi == NULL)
 385     return AVIERR_BADPARAM;
 386
 387   *avis = NULL;
 388
 389   /* We only support one audio stream */
 390   if (This->fInfo.dwStreams != 0 || This->lpFormat != NULL)
 391     return AVIERR_UNSUPPORTED;
 392   if (asi->fccType != streamtypeAUDIO)
 393     return AVIERR_UNSUPPORTED;
 394
 395   /* Does the user have write permission? */
 396   if ((This->uMode & MMIO_RWMODE) == 0)
 397     return AVIERR_READONLY;
 398
 399   This->cbFormat = 0;
 400   This->lpFormat = NULL;
 401
 402   memcpy(&This->sInfo, asi, sizeof(This->sInfo));
 403
 404   /* make sure streaminfo if okay for us */
 405   This->sInfo.fccHandler          = 0;
 406   This->sInfo.dwFlags             = 0;
 407   This->sInfo.dwCaps              = AVIFILECAPS_CANREAD|AVIFILECAPS_CANWRITE;
 408   This->sInfo.dwStart             = 0;
 409   This->sInfo.dwInitialFrames     = 0;
 410   This->sInfo.dwFormatChangeCount = 0;
 411   memset(&This->sInfo.rcFrame, 0, sizeof(This->sInfo.rcFrame));
 412
 413   This->fInfo.dwStreams = 1;
 414   This->fInfo.dwScale   = This->sInfo.dwScale;
 415   This->fInfo.dwRate    = This->sInfo.dwRate;
 416   This->fInfo.dwLength  = This->sInfo.dwLength;
 417
 418   This->ckData.dwDataOffset = 0;
 419   This->ckData.cksize       = 0;
 420
 421   *avis = (PAVISTREAM)&This->iAVIStream;
 422   IAVIFile_AddRef(iface);
 423
 424   return AVIERR_OK;
 425 }
 426
 427 static HRESULT WINAPI IAVIFile_fnWriteData(IAVIFile *iface, DWORD ckid,
 428                                            LPVOID lpData, LONG size)
 429 {
 430   ICOM_THIS(IAVIFileImpl,iface);
 431
 432   TRACE("(%p,0x%08lX,%p,%ld)\n", iface, ckid, lpData, size);
 433
 434   /* check parameters */
 435   if (lpData == NULL)
 436     return AVIERR_BADPARAM;
 437   if (size < 0)
 438     return AVIERR_BADSIZE;
 439
 440   /* Do we have write permission? */
 441   if ((This->uMode & MMIO_RWMODE) == 0)
 442     return AVIERR_READONLY;
 443
 444   This->fDirty = TRUE;
 445
 446   return WriteExtraChunk(&This->extra, ckid, lpData, size);
 447 }
 448
 449 static HRESULT WINAPI IAVIFile_fnReadData(IAVIFile *iface, DWORD ckid,
 450                                           LPVOID lpData, LONG *size)
 451 {
 452   ICOM_THIS(IAVIFileImpl,iface);
 453
 454   TRACE("(%p,0x%08lX,%p,%p)\n", iface, ckid, lpData, size);
 455
 456   return ReadExtraChunk(&This->extra, ckid, lpData, size);
 457 }
 458
 459 static HRESULT WINAPI IAVIFile_fnEndRecord(IAVIFile *iface)
 460 {
 461   TRACE("(%p)\n",iface);
 462
 463   /* This is only needed for interleaved files.
 464    * We have only one stream, which can't be interleaved.
 465    */
 466   return AVIERR_OK;
 467 }
 468
 469 static HRESULT WINAPI IAVIFile_fnDeleteStream(IAVIFile *iface, DWORD fccType,
 470                                               LONG lParam)
 471 {
 472   ICOM_THIS(IAVIFileImpl,iface);
 473
 474   TRACE("(%p,0x%08lX,%ld)\n", iface, fccType, lParam);
 475
 476   /* check parameter */
 477   if (lParam < 0)
 478     return AVIERR_BADPARAM;
 479
 480   /* Have we our audio stream? */
 481   if (lParam != 0 || This->fInfo.dwStreams == 0 ||
 482       (fccType != 0 && fccType != streamtypeAUDIO))
 483     return AVIERR_NODATA;
 484
 485   /* Have user write permissions? */
 486   if ((This->uMode & MMIO_RWMODE) == 0)
 487     return AVIERR_READONLY;
 488
 489   GlobalFreePtr(This->lpFormat);
 490   This->lpFormat = NULL;
 491   This->cbFormat = 0;
 492
 493   /* update infos */
 494   This->ckData.dwDataOffset = 0;
 495   This->ckData.cksize       = 0;
 496
 497   This->sInfo.dwScale   = 0;
 498   This->sInfo.dwRate    = 0;
 499   This->sInfo.dwLength  = 0;
 500   This->sInfo.dwSuggestedBufferSize = 0;
 501
 502   This->fInfo.dwStreams = 0;
 503   This->fInfo.dwEditCount++;
 504
 505   This->fDirty = TRUE;
 506
 507   return AVIERR_OK;
 508 }
 509
 510 /***********************************************************************/
 511
 512 static HRESULT WINAPI IPersistFile_fnQueryInterface(IPersistFile *iface,
 513                                                     REFIID refiid, LPVOID *obj)
 514 {
 515   ICOM_THIS(IPersistFileImpl,iface);
 516
 517   assert(This->paf != NULL);
 518
 519   return IAVIFile_QueryInterface((PAVIFILE)This->paf, refiid, obj);
 520 }
 521
 522 static ULONG   WINAPI IPersistFile_fnAddRef(IPersistFile *iface)
 523 {
 524   ICOM_THIS(IPersistFileImpl,iface);
 525
 526   assert(This->paf != NULL);
 527
 528   return IAVIFile_AddRef((PAVIFILE)This->paf);
 529 }
 530
 531 static ULONG   WINAPI IPersistFile_fnRelease(IPersistFile *iface)
 532 {
 533   ICOM_THIS(IPersistFileImpl,iface);
 534
 535   assert(This->paf != NULL);
 536
 537   return IAVIFile_Release((PAVIFILE)This->paf);
 538 }
 539
 540 static HRESULT WINAPI IPersistFile_fnGetClassID(IPersistFile *iface,
 541                                                 LPCLSID pClassID)
 542 {
 543   TRACE("(%p,%p)\n", iface, pClassID);
 544
 545   if (pClassID == NULL)
 546     return AVIERR_BADPARAM;
 547
 548   memcpy(pClassID, &CLSID_WAVFile, sizeof(CLSID_WAVFile));
 549
 550   return AVIERR_OK;
 551 }
 552
 553 static HRESULT WINAPI IPersistFile_fnIsDirty(IPersistFile *iface)
 554 {
 555   ICOM_THIS(IPersistFileImpl,iface);
 556
 557   TRACE("(%p)\n", iface);
 558
 559   assert(This->paf != NULL);
 560
 561   return (This->paf->fDirty ? S_OK : S_FALSE);
 562 }
 563
 564 static HRESULT WINAPI IPersistFile_fnLoad(IPersistFile *iface,
 565                                           LPCOLESTR pszFileName, DWORD dwMode)
 566 {
 567   IAVIFileImpl *This = ((IPersistFileImpl*)iface)->paf;
 568
 569   WCHAR wszStreamFmt[50];
 570   INT   len;
 571
 572   TRACE("(%p,%s,0x%08lX)\n", iface, debugstr_w(pszFileName), dwMode);
 573
 574   /* check parameter */
 575   if (pszFileName == NULL)
 576     return AVIERR_BADPARAM;
 577
 578   assert(This != NULL);
 579   if (This->hmmio != NULL)
 580     return AVIERR_ERROR; /* No reuse of this object for another file! */
 581
 582   /* remeber mode and name */
 583   This->uMode = dwMode;
 584
 585   len = lstrlenW(pszFileName) + 1;
 586   This->szFileName = (LPWSTR)LocalAlloc(LPTR, len * sizeof(WCHAR));
 587   if (This->szFileName == NULL)
 588     return AVIERR_MEMORY;
 589   lstrcpyW(This->szFileName, pszFileName);
 590
 591   /* try to open the file */
 592   This->hmmio = mmioOpenW(This->szFileName, NULL, MMIO_ALLOCBUF | dwMode);
 593   if (This->hmmio == NULL) {
 594     /* mmioOpenW not in native DLLs of Win9x -- try mmioOpenA */
 595     LPSTR szFileName = LocalAlloc(LPTR, len * sizeof(CHAR));
 596     if (szFileName == NULL)
 597       return AVIERR_MEMORY;
 598
 599     WideCharToMultiByte(CP_ACP, 0, This->szFileName, -1, szFileName,
 600                         len, NULL, NULL);
 601
 602     This->hmmio = mmioOpenA(szFileName, NULL, MMIO_ALLOCBUF | dwMode);
 603     LocalFree((HLOCAL)szFileName);
 604     if (This->hmmio == NULL)
 605       return AVIERR_FILEOPEN;
 606   }
 607
 608   memset(& This->fInfo, 0, sizeof(This->fInfo));
 609   memset(& This->sInfo, 0, sizeof(This->sInfo));
 610
 611   LoadStringW(AVIFILE_hModule, IDS_WAVEFILETYPE, This->fInfo.szFileType,
 612               sizeof(This->fInfo.szFileType));
 613   if (LoadStringW(AVIFILE_hModule, IDS_WAVESTREAMFORMAT,
 614                   wszStreamFmt, sizeof(wszStreamFmt)) > 0) {
 615     wsprintfW(This->sInfo.szName, wszStreamFmt,
 616               AVIFILE_BasenameW(This->szFileName));
 617   }
 618
 619   /* should we create a new file? */
 620   if (dwMode & OF_CREATE) {
 621     /* nothing more to do */
 622     return AVIERR_OK;
 623   } else
 624     return AVIFILE_LoadFile(This);
 625 }
 626
 627 static HRESULT WINAPI IPersistFile_fnSave(IPersistFile *iface,
 628                                           LPCOLESTR pszFileName,BOOL fRemember)
 629 {
 630   TRACE("(%p,%s,%d)\n", iface, debugstr_w(pszFileName), fRemember);
 631
 632   /* We write directly to disk, so nothing to do. */
 633
 634   return AVIERR_OK;
 635 }
 636
 637 static HRESULT WINAPI IPersistFile_fnSaveCompleted(IPersistFile *iface,
 638                                                    LPCOLESTR pszFileName)
 639 {
 640   TRACE("(%p,%s)\n", iface, debugstr_w(pszFileName));
 641
 642   /* We write directly to disk, so nothing to do. */
 643
 644   return AVIERR_OK;
 645 }
 646
 647 static HRESULT WINAPI IPersistFile_fnGetCurFile(IPersistFile *iface,
 648                                                 LPOLESTR *ppszFileName)
 649 {
 650   ICOM_THIS(IPersistFileImpl,iface);
 651
 652   TRACE("(%p,%p)\n", iface, ppszFileName);
 653
 654   if (ppszFileName == NULL)
 655     return AVIERR_BADPARAM;
 656
 657   *ppszFileName = NULL;
 658
 659   assert(This->paf != NULL);
 660
 661   if (This->paf->szFileName != NULL) {
 662     int len = lstrlenW(This->paf->szFileName);
 663
 664     *ppszFileName = (LPOLESTR)GlobalAllocPtr(GHND, len * sizeof(WCHAR));
 665     if (*ppszFileName == NULL)
 666       return AVIERR_MEMORY;
 667
 668     memcpy(*ppszFileName, This->paf->szFileName, len * sizeof(WCHAR));
 669   }
 670
 671   return AVIERR_OK;
 672 }
 673
 674 /***********************************************************************/
 675
 676 static HRESULT WINAPI IAVIStream_fnQueryInterface(IAVIStream *iface,
 677                                                   REFIID refiid, LPVOID *obj)
 678 {
 679   ICOM_THIS(IAVIStreamImpl,iface);
 680
 681   assert(This->paf != NULL);
 682
 683   return IAVIFile_QueryInterface((PAVIFILE)This->paf, refiid, obj);
 684 }
 685
 686 static ULONG WINAPI IAVIStream_fnAddRef(IAVIStream *iface)
 687 {
 688   ICOM_THIS(IAVIStreamImpl,iface);
 689
 690   assert(This->paf != NULL);
 691
 692   return IAVIFile_AddRef((PAVIFILE)This->paf);
 693 }
 694
 695 static ULONG WINAPI IAVIStream_fnRelease(IAVIStream* iface)
 696 {
 697   ICOM_THIS(IAVIStreamImpl,iface);
 698
 699   assert(This->paf != NULL);
 700
 701   return IAVIFile_Release((PAVIFILE)This->paf);
 702 }
 703
 704 static HRESULT WINAPI IAVIStream_fnCreate(IAVIStream *iface, LPARAM lParam1,
 705                                           LPARAM lParam2)
 706 {
 707   TRACE("(%p,0x%08lX,0x%08lX)\n", iface, lParam1, lParam2);
 708
 709   /* This IAVIStream interface needs an WAVFile */
 710   return AVIERR_UNSUPPORTED;
 711 }
 712
 713 static HRESULT WINAPI IAVIStream_fnInfo(IAVIStream *iface,LPAVISTREAMINFOW psi,
 714                                         LONG size)
 715 {
 716   ICOM_THIS(IAVIStreamImpl,iface);
 717
 718   TRACE("(%p,%p,%ld)\n", iface, psi, size);
 719
 720   if (psi == NULL)
 721     return AVIERR_BADPARAM;
 722   if (size < 0)
 723     return AVIERR_BADSIZE;
 724
 725   memcpy(psi, &This->paf->sInfo, min((DWORD)size, sizeof(This->paf->sInfo)));
 726
 727   if ((DWORD)size < sizeof(This->paf->sInfo))
 728     return AVIERR_BUFFERTOOSMALL;
 729   return AVIERR_OK;
 730 }
 731
 732 static LONG WINAPI IAVIStream_fnFindSample(IAVIStream *iface, LONG pos,
 733                                            LONG flags)
 734 {
 735   IAVIFileImpl *This = ((IAVIStreamImpl*)iface)->paf;
 736
 737   TRACE("(%p,%ld,0x%08lX)\n",iface,pos,flags);
 738
 739   /* Do we have data? */
 740   if (This->lpFormat == NULL)
 741     return -1;
 742
 743   /* We don't have an index */
 744   if (flags & FIND_INDEX)
 745     return -1;
 746
 747   if (flags & FIND_FROM_START) {
 748     pos = This->sInfo.dwStart;
 749     flags &= ~(FIND_FROM_START|FIND_PREV);
 750     flags |= FIND_NEXT;
 751   }
 752
 753   if (flags & FIND_FORMAT) {
 754     if ((flags & FIND_NEXT) && pos > 0)
 755       pos = -1;
 756     else
 757       pos = 0;
 758   }
 759
 760   if (flags & (FIND_LENGTH|FIND_SIZE))
 761     return This->sInfo.dwSampleSize;
 762   if (flags & FIND_OFFSET)
 763     return This->ckData.dwDataOffset + pos * This->sInfo.dwSampleSize;
 764
 765   return pos;
 766 }
 767
 768 static HRESULT WINAPI IAVIStream_fnReadFormat(IAVIStream *iface, LONG pos,
 769                                               LPVOID format, LONG *formatsize)
 770 {
 771   ICOM_THIS(IAVIStreamImpl,iface);
 772
 773   TRACE("(%p,%ld,%p,%p)\n", iface, pos, format, formatsize);
 774
 775   if (formatsize == NULL)
 776     return AVIERR_BADPARAM;
 777
 778   /* only interested in needed buffersize? */
 779   if (format == NULL || *formatsize <= 0) {
 780     *formatsize = This->paf->cbFormat;
 781
 782     return AVIERR_OK;
 783   }
 784
 785   /* copy initial format (only as much as will fit) */
 786   memcpy(format, This->paf->lpFormat, min(*formatsize, This->paf->cbFormat));
 787   if (*formatsize < This->paf->cbFormat) {
 788     *formatsize = This->paf->cbFormat;
 789     return AVIERR_BUFFERTOOSMALL;
 790   }
 791
 792   *formatsize = This->paf->cbFormat;
 793   return AVIERR_OK;
 794 }
 795
 796 static HRESULT WINAPI IAVIStream_fnSetFormat(IAVIStream *iface, LONG pos,
 797                                              LPVOID format, LONG formatsize)
 798 {
 799   IAVIFileImpl *This = ((IAVIStreamImpl*)iface)->paf;
 800
 801   TRACE("(%p,%ld,%p,%ld)\n", iface, pos, format, formatsize);
 802
 803   /* check parameters */
 804   if (format == NULL || formatsize <= sizeof(PCMWAVEFORMAT))
 805     return AVIERR_BADPARAM;
 806
 807   /* We can only do this to an empty wave file, but ignore call
 808    * if still same format */
 809   if (This->lpFormat != NULL) {
 810     if (formatsize != This->cbFormat ||
 811         memcmp(format, This->lpFormat, formatsize) != 0)
 812       return AVIERR_UNSUPPORTED;
 813
 814     return AVIERR_OK;
 815   }
 816
 817   /* only support start at position 0 */
 818   if (pos != 0)
 819     return AVIERR_UNSUPPORTED;
 820
 821   /* Do we have write permission? */
 822   if ((This->uMode & MMIO_RWMODE) == 0)
 823     return AVIERR_READONLY;
 824
 825   /* get memory for format and copy it */
 826   This->lpFormat = (LPWAVEFORMATEX)GlobalAllocPtr(GMEM_MOVEABLE, formatsize);
 827   if (This->lpFormat == NULL)
 828     return AVIERR_MEMORY;
 829
 830   This->cbFormat = formatsize;
 831   memcpy(This->lpFormat, format, formatsize);
 832
 833   /* update info's about 'data' chunk */
 834   This->ckData.dwDataOffset = formatsize + 7 * sizeof(DWORD);
 835   This->ckData.cksize       = 0;
 836
 837   /* for non-pcm format we need also a 'fact' chunk */
 838   if (This->lpFormat->wFormatTag != WAVE_FORMAT_PCM)
 839     This->ckData.dwDataOffset += 3 * sizeof(DWORD);
 840
 841   /* update stream and file info */
 842   This->sInfo.dwSampleSize = This->lpFormat->nBlockAlign;
 843   This->sInfo.dwScale      = This->lpFormat->nBlockAlign;
 844   This->sInfo.dwRate       = This->lpFormat->nAvgBytesPerSec;
 845   This->sInfo.dwLength     = 0;
 846   This->sInfo.dwSuggestedBufferSize = 0;
 847
 848   return AVIERR_OK;
 849 }
 850
 851 static HRESULT WINAPI IAVIStream_fnRead(IAVIStream *iface, LONG start,
 852                                         LONG samples, LPVOID buffer,
 853                                         LONG buffersize, LPLONG bytesread,
 854                                         LPLONG samplesread)
 855 {
 856   IAVIFileImpl *This = ((IAVIStreamImpl*)iface)->paf;
 857
 858   TRACE("(%p,%ld,%ld,%p,%ld,%p,%p)\n", iface, start, samples, buffer,
 859         buffersize, bytesread, samplesread);
 860
 861   /* clear return parameters if given */
 862   if (bytesread != NULL)
 863     *bytesread = 0;
 864   if (samplesread != NULL)
 865     *samplesread = 0;
 866
 867   /* positions without data */
 868   if (start < 0 || (DWORD)start > This->sInfo.dwLength)
 869     return AVIERR_OK;
 870
 871   /* check samples */
 872   if (samples < 0)
 873     samples = 0;
 874   if (buffersize > 0) {
 875     if (samples > 0)
 876       samples = min((DWORD)samples, buffersize / This->sInfo.dwSampleSize);
 877     else
 878       samples = buffersize / This->sInfo.dwSampleSize;
 879   }
 880
 881   /* limit to end of stream */
 882   if ((DWORD)(start + samples) > This->sInfo.dwLength)
 883     samples = This->sInfo.dwLength - start;
 884
 885   /* request only the sizes? */
 886   if (buffer == NULL || buffersize <= 0) {
 887     /* then I need atleast one parameter for it */
 888     if (bytesread == NULL && samplesread == NULL)
 889       return AVIERR_BADPARAM;
 890
 891     if (bytesread != NULL)
 892       *bytesread = samples * This->sInfo.dwSampleSize;
 893     if (samplesread != NULL)
 894       *samplesread = samples;
 895
 896     return AVIERR_OK;
 897   }
 898
 899   /* nothing to read? */
 900   if (samples == 0)
 901     return AVIERR_OK;
 902
 903   /* Can I atleast read one sample? */
 904   if ((DWORD)buffersize < This->sInfo.dwSampleSize)
 905     return AVIERR_BUFFERTOOSMALL;
 906
 907   buffersize = samples * This->sInfo.dwSampleSize;
 908
 909   if (mmioSeek(This->hmmio, This->ckData.dwDataOffset
 910                + start * This->sInfo.dwSampleSize, SEEK_SET) == -1)
 911     return AVIERR_FILEREAD;
 912   if (mmioRead(This->hmmio, (HPSTR)buffer, buffersize) != buffersize)
 913     return AVIERR_FILEREAD;
 914
 915   /* fill out return parameters if given */
 916   if (bytesread != NULL)
 917     *bytesread = buffersize;
 918   if (samplesread != NULL)
 919     *samplesread = samples;
 920
 921   return AVIERR_OK;
 922 }
 923
 924 static HRESULT WINAPI IAVIStream_fnWrite(IAVIStream *iface, LONG start,
 925                                          LONG samples, LPVOID buffer,
 926                                          LONG buffersize, DWORD flags,
 927                                          LPLONG sampwritten,
 928                                          LPLONG byteswritten)
 929 {
 930   IAVIFileImpl *This = ((IAVIStreamImpl*)iface)->paf;
 931
 932   TRACE("(%p,%ld,%ld,%p,%ld,0x%08lX,%p,%p)\n", iface, start, samples,
 933         buffer, buffersize, flags, sampwritten, byteswritten);
 934
 935   /* clear return parameters if given */
 936   if (sampwritten != NULL)
 937     *sampwritten = 0;
 938   if (byteswritten != NULL)
 939     *byteswritten = 0;
 940
 941   /* check parameters */
 942   if (buffer == NULL && (buffersize > 0 || samples > 0))
 943     return AVIERR_BADPARAM;
 944
 945   /* Have we write permission? */
 946   if ((This->uMode & MMIO_RWMODE) == 0)
 947     return AVIERR_READONLY;
 948
 949   /* < 0 means "append" */
 950   if (start < 0)
 951     start = This->sInfo.dwStart + This->sInfo.dwLength;
 952
 953   /* check buffersize -- must multiple of samplesize */
 954   if (buffersize & ~(This->sInfo.dwSampleSize - 1))
 955     return AVIERR_BADSIZE;
 956
 957   /* have we anything to write? */
 958   if (buffer != NULL && buffersize > 0) {
 959     This->fDirty = 1;
 960
 961     if (mmioSeek(This->hmmio, This->ckData.dwDataOffset +
 962                  start * This->sInfo.dwSampleSize, SEEK_SET) == -1)
 963       return AVIERR_FILEWRITE;
 964     if (mmioWrite(This->hmmio, (HPSTR)buffer, buffersize) != buffersize)
 965       return AVIERR_FILEWRITE;
 966
 967     This->sInfo.dwLength = max(This->sInfo.dwLength, (DWORD)start + samples);
 968     This->ckData.cksize  = max(This->ckData.cksize,
 969                                start * This->sInfo.dwSampleSize + buffersize);
 970
 971     /* fill out return parameters if given */
 972     if (sampwritten != NULL)
 973       *sampwritten = samples;
 974     if (byteswritten != NULL)
 975       *byteswritten = buffersize;
 976   }
 977
 978   return AVIERR_OK;
 979 }
 980
 981 static HRESULT WINAPI IAVIStream_fnDelete(IAVIStream *iface, LONG start,
 982                                           LONG samples)
 983 {
 984   IAVIFileImpl *This = ((IAVIStreamImpl*)iface)->paf;
 985
 986   TRACE("(%p,%ld,%ld)\n", iface, start, samples);
 987
 988   /* check parameters */
 989   if (start < 0 || samples < 0)
 990     return AVIERR_BADPARAM;
 991
 992   /* Delete before start of stream? */
 993   if ((DWORD)(start + samples) < This->sInfo.dwStart)
 994     return AVIERR_OK;
 995
 996   /* Delete after end of stream? */
 997   if ((DWORD)start > This->sInfo.dwLength)
 998     return AVIERR_OK;
 999
1000   /* For the rest we need write permissions */
1001   if ((This->uMode & MMIO_RWMODE) == 0)
1002     return AVIERR_READONLY;
1003
1004   if ((DWORD)(start + samples) >= This->sInfo.dwLength) {
1005     /* deletion at end */
1006     samples = This->sInfo.dwLength - start;
1007     This->sInfo.dwLength -= samples;
1008     This->ckData.cksize  -= samples * This->sInfo.dwSampleSize;
1009   } else if ((DWORD)start <= This->sInfo.dwStart) {
1010     /* deletion at start */
1011     samples = This->sInfo.dwStart - start;
1012     start   = This->sInfo.dwStart;
1013     This->ckData.dwDataOffset += samples * This->sInfo.dwSampleSize;
1014     This->ckData.cksize       -= samples * This->sInfo.dwSampleSize;
1015   } else {
1016     /* deletion inside stream -- needs playlist and cue's */
1017     FIXME(": deletion inside of stream not supported!\n");
1018
1019     return AVIERR_UNSUPPORTED;
1020   }
1021
1022   This->fDirty = 1;
1023
1024   return AVIERR_OK;
1025 }
1026
1027 static HRESULT WINAPI IAVIStream_fnReadData(IAVIStream *iface, DWORD fcc,
1028                                             LPVOID lp, LPLONG lpread)
1029 {
1030   ICOM_THIS(IAVIStreamImpl,iface);
1031
1032   assert(This->paf != NULL);
1033
1034   return IAVIFile_ReadData((PAVIFILE)This->paf, fcc, lp, lpread);
1035 }
1036
1037 static HRESULT WINAPI IAVIStream_fnWriteData(IAVIStream *iface, DWORD fcc,
1038                                              LPVOID lp, LONG size)
1039 {
1040   ICOM_THIS(IAVIStreamImpl,iface);
1041
1042   return IAVIFile_WriteData((PAVIFILE)This->paf, fcc, lp, size);
1043 }
1044
1045 static HRESULT WINAPI IAVIStream_fnSetInfo(IAVIStream *iface,
1046                                            LPAVISTREAMINFOW info, LONG infolen)
1047 {
1048   FIXME("(%p,%p,%ld): stub\n", iface, info, infolen);
1049
1050   return E_FAIL;
1051 }
1052
1053 /***********************************************************************/
1054
1055 static HRESULT AVIFILE_LoadFile(IAVIFileImpl *This)
1056 {
1057   MMCKINFO ckRIFF;
1058   MMCKINFO ck;
1059
1060   This->sInfo.dwLength = 0; /* just to be sure */
1061   This->fDirty = FALSE;
1062
1063   /* search for RIFF chunk */
1064   ckRIFF.fccType = 0; /* find any */
1065   if (mmioDescend(This->hmmio, &ckRIFF, NULL, MMIO_FINDRIFF) != S_OK) {
1066     return AVIFILE_LoadSunFile(This);
1067   }
1068
1069   if (ckRIFF.fccType != formtypeWAVE)
1070     return AVIERR_BADFORMAT;
1071
1072   /* search WAVE format chunk */
1073   ck.ckid = ckidWAVEFORMAT;
1074   if (FindChunkAndKeepExtras(&This->extra, This->hmmio, &ck,
1075                              &ckRIFF, MMIO_FINDCHUNK) != S_OK)
1076     return AVIERR_FILEREAD;
1077
1078   /* get memory for format and read it */
1079   This->lpFormat = (LPWAVEFORMATEX)GlobalAllocPtr(GMEM_MOVEABLE, ck.cksize);
1080   if (This->lpFormat == NULL)
1081     return AVIERR_FILEREAD;
1082   This->cbFormat = ck.cksize;
1083
1084   if (mmioRead(This->hmmio, (HPSTR)This->lpFormat, ck.cksize) != ck.cksize)
1085     return AVIERR_FILEREAD;
1086   if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
1087     return AVIERR_FILEREAD;
1088
1089   /* Non-pcm formats have a fact chunk.
1090    * We don't need it, so simply add it to the extra chunks.
1091    */
1092
1093   /* find the big data chunk */
1094   This->ckData.ckid = ckidWAVEDATA;
1095   if (FindChunkAndKeepExtras(&This->extra, This->hmmio, &This->ckData,
1096                              &ckRIFF, MMIO_FINDCHUNK) != S_OK)
1097     return AVIERR_FILEREAD;
1098
1099   memset(&This->sInfo, 0, sizeof(This->sInfo));
1100   This->sInfo.fccType      = streamtypeAUDIO;
1101   This->sInfo.dwRate       = This->lpFormat->nAvgBytesPerSec;
1102   This->sInfo.dwSampleSize =
1103     This->sInfo.dwScale    = This->lpFormat->nBlockAlign;
1104   This->sInfo.dwLength     = This->ckData.cksize / This->lpFormat->nBlockAlign;
1105   This->sInfo.dwSuggestedBufferSize = This->ckData.cksize;
1106
1107   This->fInfo.dwStreams = 1;
1108
1109   if (mmioAscend(This->hmmio, &This->ckData, 0) != S_OK) {
1110     /* seems to be truncated */
1111     WARN(": file seems to be truncated!\n");
1112     This->ckData.cksize  = mmioSeek(This->hmmio, 0, SEEK_END) -
1113       This->ckData.dwDataOffset;
1114     This->sInfo.dwLength = This->ckData.cksize / This->lpFormat->nBlockAlign;
1115     This->sInfo.dwSuggestedBufferSize = This->ckData.cksize;
1116   }
1117
1118   /* ignore errors */
1119   FindChunkAndKeepExtras(&This->extra, This->hmmio, &ck, &ckRIFF, 0);
1120
1121   return AVIERR_OK;
1122 }
1123
1124 static HRESULT AVIFILE_LoadSunFile(IAVIFileImpl *This)
1125 {
1126   SUNAUDIOHEADER auhdr;
1127
1128   mmioSeek(This->hmmio, 0, SEEK_SET);
1129   if (mmioRead(This->hmmio, (HPSTR)&auhdr, sizeof(auhdr)) != sizeof(auhdr))
1130     return AVIERR_FILEREAD;
1131
1132   if (auhdr.fccType == 0x0064732E) {
1133     /* header in little endian */
1134     This->ckData.dwDataOffset = LE2H_DWORD(auhdr.offset);
1135     This->ckData.cksize       = LE2H_DWORD(auhdr.size);
1136
1137     auhdr.encoding   = LE2H_DWORD(auhdr.encoding);
1138     auhdr.sampleRate = LE2H_DWORD(auhdr.sampleRate);
1139     auhdr.channels   = LE2H_DWORD(auhdr.channels);
1140   } else if (auhdr.fccType == mmioFOURCC('.','s','n','d')) {
1141     /* header in big endian */
1142     This->ckData.dwDataOffset = BE2H_DWORD(auhdr.offset);
1143     This->ckData.cksize       = BE2H_DWORD(auhdr.size);
1144
1145     auhdr.encoding   = BE2H_DWORD(auhdr.encoding);
1146     auhdr.sampleRate = BE2H_DWORD(auhdr.sampleRate);
1147     auhdr.channels   = BE2H_DWORD(auhdr.channels);
1148   } else
1149     return AVIERR_FILEREAD;
1150
1151   if (auhdr.channels < 1)
1152     return AVIERR_BADFORMAT;
1153
1154   /* get size of header */
1155   switch(auhdr.encoding) {
1156   case AU_ENCODING_ADPCM_G721_32:
1157     This->cbFormat = sizeof(G721_ADPCMWAVEFORMAT); break;
1158   case AU_ENCODING_ADPCM_G723_24:
1159     This->cbFormat = sizeof(G723_ADPCMWAVEFORMAT); break;
1160   case AU_ENCODING_ADPCM_G722:
1161   case AU_ENCODING_ADPCM_G723_5:
1162     WARN("unsupported Sun audio format %d\n", auhdr.encoding);
1163     return AVIERR_UNSUPPORTED; /* FIXME */
1164   default:
1165     This->cbFormat = sizeof(WAVEFORMATEX); break;
1166   };
1167
1168   This->lpFormat =
1169     (LPWAVEFORMATEX)GlobalAllocPtr(GMEM_MOVEABLE, This->cbFormat);
1170   if (This->lpFormat == NULL)
1171     return AVIERR_MEMORY;
1172
1173   This->lpFormat->nChannels      = auhdr.channels;
1174   This->lpFormat->nSamplesPerSec = auhdr.sampleRate;
1175   switch(auhdr.encoding) {
1176   case AU_ENCODING_ULAW_8:
1177     This->lpFormat->wFormatTag     = WAVE_FORMAT_MULAW;
1178     This->lpFormat->wBitsPerSample = 8;
1179     break;
1180   case AU_ENCODING_PCM_8:
1181     This->lpFormat->wFormatTag     = WAVE_FORMAT_PCM;
1182     This->lpFormat->wBitsPerSample = 8;
1183     break;
1184   case AU_ENCODING_PCM_16:
1185     This->lpFormat->wFormatTag     = WAVE_FORMAT_PCM;
1186     This->lpFormat->wBitsPerSample = 16;
1187     break;
1188   case AU_ENCODING_PCM_24:
1189     This->lpFormat->wFormatTag     = WAVE_FORMAT_PCM;
1190     This->lpFormat->wBitsPerSample = 24;
1191     break;
1192   case AU_ENCODING_PCM_32:
1193     This->lpFormat->wFormatTag     = WAVE_FORMAT_PCM;
1194     This->lpFormat->wBitsPerSample = 32;
1195     break;
1196   case AU_ENCODING_ALAW_8:
1197     This->lpFormat->wFormatTag     = WAVE_FORMAT_ALAW;
1198     This->lpFormat->wBitsPerSample = 8;
1199     break;
1200   case AU_ENCODING_ADPCM_G721_32:
1201     This->lpFormat->wFormatTag     = WAVE_FORMAT_G721_ADPCM;
1202     This->lpFormat->wBitsPerSample = (3*5*8);
1203     This->lpFormat->nBlockAlign    = 15*15*8;
1204     This->lpFormat->cbSize         = sizeof(WORD);
1205     ((LPG721_ADPCMWAVEFORMAT)This->lpFormat)->nAuxBlockSize = 0;
1206     break;
1207   case AU_ENCODING_ADPCM_G723_24:
1208     This->lpFormat->wFormatTag     = WAVE_FORMAT_G723_ADPCM;
1209     This->lpFormat->wBitsPerSample = (3*5*8);
1210     This->lpFormat->nBlockAlign    = 15*15*8;
1211     This->lpFormat->cbSize         = 2*sizeof(WORD);
1212     ((LPG723_ADPCMWAVEFORMAT)This->lpFormat)->cbExtraSize   = 0;
1213     ((LPG723_ADPCMWAVEFORMAT)This->lpFormat)->nAuxBlockSize = 0;
1214     break;
1215   default:
1216     WARN("unsupported Sun audio format %d\n", auhdr.encoding);
1217     return AVIERR_UNSUPPORTED;
1218   };
1219
1220   This->lpFormat->nBlockAlign =
1221     (This->lpFormat->nChannels * This->lpFormat->wBitsPerSample) / 8;
1222   if (This->lpFormat->nBlockAlign == 0 && This->lpFormat->wBitsPerSample < 8)
1223     This->lpFormat->nBlockAlign++;
1224   This->lpFormat->nAvgBytesPerSec =
1225     This->lpFormat->nBlockAlign * This->lpFormat->nSamplesPerSec;
1226
1227   This->fDirty = 0;
1228
1229   This->sInfo.fccType               = streamtypeAUDIO;
1230   This->sInfo.fccHandler            = 0;
1231   This->sInfo.dwFlags               = 0;
1232   This->sInfo.wPriority             = 0;
1233   This->sInfo.wLanguage             = 0;
1234   This->sInfo.dwInitialFrames       = 0;
1235   This->sInfo.dwScale               = This->lpFormat->nBlockAlign;
1236   This->sInfo.dwRate                = This->lpFormat->nAvgBytesPerSec;
1237   This->sInfo.dwStart               = 0;
1238   This->sInfo.dwLength              =
1239     This->ckData.cksize / This->lpFormat->nBlockAlign;
1240   This->sInfo.dwSuggestedBufferSize = This->sInfo.dwLength;
1241   This->sInfo.dwSampleSize          = This->lpFormat->nBlockAlign;
1242
1243   This->fInfo.dwStreams = 1;
1244   This->fInfo.dwScale   = 1;
1245   This->fInfo.dwRate    = This->lpFormat->nSamplesPerSec;
1246   This->fInfo.dwLength  =
1247     MulDiv(This->ckData.cksize, This->lpFormat->nSamplesPerSec,
1248            This->lpFormat->nAvgBytesPerSec);
1249
1250   return AVIERR_OK;
1251 }
1252
1253 static HRESULT AVIFILE_SaveFile(IAVIFileImpl *This)
1254 {
1255   MMCKINFO ckRIFF;
1256   MMCKINFO ck;
1257
1258   mmioSeek(This->hmmio, 0, SEEK_SET);
1259
1260   /* create the RIFF chunk with formtype WAVE */
1261   ckRIFF.fccType = formtypeWAVE;
1262   ckRIFF.cksize  = 0;
1263   if (mmioCreateChunk(This->hmmio, &ckRIFF, MMIO_CREATERIFF) != S_OK)
1264     return AVIERR_FILEWRITE;
1265
1266   /* the next chunk is the format */
1267   ck.ckid   = ckidWAVEFORMAT;
1268   ck.cksize = This->cbFormat;
1269   if (mmioCreateChunk(This->hmmio, &ck, 0) != S_OK)
1270     return AVIERR_FILEWRITE;
1271   if (This->lpFormat != NULL && This->cbFormat > 0) {
1272     if (mmioWrite(This->hmmio, (HPSTR)This->lpFormat, ck.cksize) != ck.cksize)
1273       return AVIERR_FILEWRITE;
1274   }
1275   if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
1276     return AVIERR_FILEWRITE;
1277
1278   /* fact chunk is needed for non-pcm waveforms */
1279   if (This->lpFormat != NULL && This->cbFormat > sizeof(PCMWAVEFORMAT) &&
1280       This->lpFormat->wFormatTag != WAVE_FORMAT_PCM) {
1281     WAVEFORMATEX wfx;
1282     DWORD        dwFactLength;
1283     HACMSTREAM   has;
1284
1285     /* try to open an appropriate audio codec to figure out
1286      * data for fact-chunk */
1287     wfx.wFormatTag = WAVE_FORMAT_PCM;
1288     if (acmFormatSuggest(NULL, This->lpFormat, &wfx,
1289                          sizeof(wfx), ACM_FORMATSUGGESTF_WFORMATTAG)) {
1290       acmStreamOpen(&has, NULL, This->lpFormat, &wfx, NULL,
1291                     0, 0, ACM_STREAMOPENF_NONREALTIME);
1292       acmStreamSize(has, This->ckData.cksize, &dwFactLength,
1293                     ACM_STREAMSIZEF_SOURCE);
1294       dwFactLength /= wfx.nBlockAlign;
1295       acmStreamClose(has, 0);
1296
1297       /* crete the fact chunk */
1298       ck.ckid   = ckidWAVEFACT;
1299       ck.cksize = sizeof(dwFactLength);
1300
1301       /* test for enough space before data chunk */
1302       if (mmioSeek(This->hmmio, 0, SEEK_CUR) > This->ckData.dwDataOffset
1303           - ck.cksize - 4 * sizeof(DWORD))
1304         return AVIERR_FILEWRITE;
1305       if (mmioCreateChunk(This->hmmio, &ck, 0) != S_OK)
1306         return AVIERR_FILEWRITE;
1307       if (mmioWrite(This->hmmio, (HPSTR)&dwFactLength, ck.cksize) != ck.cksize)
1308         return AVIERR_FILEWRITE;
1309       if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
1310         return AVIERR_FILEWRITE;
1311     } else
1312       ERR(": fact chunk is needed for non-pcm files -- currently no codec found, so skipped!\n");
1313   }
1314
1315   /* if here was extra stuff, we need to fill it with JUNK */
1316   if (mmioSeek(This->hmmio, 0, SEEK_CUR) + 2 * sizeof(DWORD) < This->ckData.dwDataOffset) {
1317     ck.ckid   = ckidAVIPADDING;
1318     ck.cksize = 0;
1319     if (mmioCreateChunk(This->hmmio, &ck, 0) != S_OK)
1320       return AVIERR_FILEWRITE;
1321
1322     if (mmioSeek(This->hmmio, This->ckData.dwDataOffset
1323                  - 2 * sizeof(DWORD), SEEK_SET) == -1)
1324       return AVIERR_FILEWRITE;
1325     if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
1326       return AVIERR_FILEWRITE;
1327   }
1328
1329   /* crete the data chunk */
1330   ck.ckid   = ckidWAVEDATA;
1331   ck.cksize = This->ckData.cksize;
1332   if (mmioCreateChunk(This->hmmio, &ck, 0) != S_OK)
1333     return AVIERR_FILEWRITE;
1334   if (mmioSeek(This->hmmio, This->ckData.cksize, SEEK_CUR) == -1)
1335     return AVIERR_FILEWRITE;
1336   if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
1337     return AVIERR_FILEWRITE;
1338
1339   /* some optional extra chunks? */
1340   if (This->extra.lp != NULL && This->extra.cb > 0) {
1341     /* chunk headers are already in structure */
1342     if (mmioWrite(This->hmmio, This->extra.lp, This->extra.cb) != This->extra.cb)
1343       return AVIERR_FILEWRITE;
1344   }
1345
1346   /* close RIFF chunk */
1347   if (mmioAscend(This->hmmio, &ckRIFF, 0) != S_OK)
1348     return AVIERR_FILEWRITE;
1349   if (mmioFlush(This->hmmio, 0) != S_OK)
1350     return AVIERR_FILEWRITE;
1351
1352   return AVIERR_OK;
1353 }