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Make sure the bind context is forwarded in
[wine.git] / dlls / avifil32 / avifile.c
blobfa3f6b621c5a72be840831db8d95f3f3f42a3be4
1 /*
2 * Copyright 1999 Marcus Meissner
3 * Copyright 2002-2003 Michael Günnewig
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19
20 /* TODO:
21 * - IAVIStreaming interface is missing for the IAVIStreamImpl
22 * - IAVIStream_fnFindSample: FIND_INDEX isn't supported.
23 * - IAVIStream_fnReadFormat: formatchanges aren't read in.
24 * - IAVIStream_fnDelete: a stub.
25 * - IAVIStream_fnSetInfo: a stub.
26 * - make thread safe
27 *
28 * KNOWN Bugs:
29 * - native version can hangup when reading a file generated with this DLL.
30 * When index is missing it works, but index seems to be okay.
31 */
32
33 #define COM_NO_WINDOWS_H
34 #include <assert.h>
35 #include <stdarg.h>
36
37 #include "windef.h"
38 #include "winbase.h"
39 #include "wingdi.h"
40 #include "winuser.h"
41 #include "winnls.h"
42 #include "winerror.h"
43 #include "windowsx.h"
44 #include "mmsystem.h"
45 #include "vfw.h"
46
47 #include "avifile_private.h"
48 #include "extrachunk.h"
49
50 #include "wine/debug.h"
51
52 WINE_DEFAULT_DEBUG_CHANNEL(avifile);
53
54 #ifndef IDX_PER_BLOCK
55 #define IDX_PER_BLOCK 2730
56 #endif
57
58 /***********************************************************************/
59
60 static HRESULT WINAPI IAVIFile_fnQueryInterface(IAVIFile* iface,REFIID refiid,LPVOID *obj);
61 static ULONG WINAPI IAVIFile_fnAddRef(IAVIFile* iface);
62 static ULONG WINAPI IAVIFile_fnRelease(IAVIFile* iface);
63 static HRESULT WINAPI IAVIFile_fnInfo(IAVIFile*iface,AVIFILEINFOW*afi,LONG size);
64 static HRESULT WINAPI IAVIFile_fnGetStream(IAVIFile*iface,PAVISTREAM*avis,DWORD fccType,LONG lParam);
65 static HRESULT WINAPI IAVIFile_fnCreateStream(IAVIFile*iface,PAVISTREAM*avis,AVISTREAMINFOW*asi);
66 static HRESULT WINAPI IAVIFile_fnWriteData(IAVIFile*iface,DWORD ckid,LPVOID lpData,LONG size);
67 static HRESULT WINAPI IAVIFile_fnReadData(IAVIFile*iface,DWORD ckid,LPVOID lpData,LONG *size);
68 static HRESULT WINAPI IAVIFile_fnEndRecord(IAVIFile*iface);
69 static HRESULT WINAPI IAVIFile_fnDeleteStream(IAVIFile*iface,DWORD fccType,LONG lParam);
70
71 struct ICOM_VTABLE(IAVIFile) iavift = {
72 ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
73 IAVIFile_fnQueryInterface,
74 IAVIFile_fnAddRef,
75 IAVIFile_fnRelease,
76 IAVIFile_fnInfo,
77 IAVIFile_fnGetStream,
78 IAVIFile_fnCreateStream,
79 IAVIFile_fnWriteData,
80 IAVIFile_fnReadData,
81 IAVIFile_fnEndRecord,
82 IAVIFile_fnDeleteStream
83 };
84
85 static HRESULT WINAPI IPersistFile_fnQueryInterface(IPersistFile*iface,REFIID refiid,LPVOID*obj);
86 static ULONG WINAPI IPersistFile_fnAddRef(IPersistFile*iface);
87 static ULONG WINAPI IPersistFile_fnRelease(IPersistFile*iface);
88 static HRESULT WINAPI IPersistFile_fnGetClassID(IPersistFile*iface,CLSID*pClassID);
89 static HRESULT WINAPI IPersistFile_fnIsDirty(IPersistFile*iface);
90 static HRESULT WINAPI IPersistFile_fnLoad(IPersistFile*iface,LPCOLESTR pszFileName,DWORD dwMode);
91 static HRESULT WINAPI IPersistFile_fnSave(IPersistFile*iface,LPCOLESTR pszFileName,BOOL fRemember);
92 static HRESULT WINAPI IPersistFile_fnSaveCompleted(IPersistFile*iface,LPCOLESTR pszFileName);
93 static HRESULT WINAPI IPersistFile_fnGetCurFile(IPersistFile*iface,LPOLESTR*ppszFileName);
94
95 struct ICOM_VTABLE(IPersistFile) ipersistft = {
96 ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
97 IPersistFile_fnQueryInterface,
98 IPersistFile_fnAddRef,
99 IPersistFile_fnRelease,
100 IPersistFile_fnGetClassID,
101 IPersistFile_fnIsDirty,
102 IPersistFile_fnLoad,
103 IPersistFile_fnSave,
104 IPersistFile_fnSaveCompleted,
105 IPersistFile_fnGetCurFile
106 };
107
108 static HRESULT WINAPI IAVIStream_fnQueryInterface(IAVIStream*iface,REFIID refiid,LPVOID *obj);
109 static ULONG WINAPI IAVIStream_fnAddRef(IAVIStream*iface);
110 static ULONG WINAPI IAVIStream_fnRelease(IAVIStream* iface);
111 static HRESULT WINAPI IAVIStream_fnCreate(IAVIStream*iface,LPARAM lParam1,LPARAM lParam2);
112 static HRESULT WINAPI IAVIStream_fnInfo(IAVIStream*iface,AVISTREAMINFOW *psi,LONG size);
113 static LONG WINAPI IAVIStream_fnFindSample(IAVIStream*iface,LONG pos,LONG flags);
114 static HRESULT WINAPI IAVIStream_fnReadFormat(IAVIStream*iface,LONG pos,LPVOID format,LONG *formatsize);
115 static HRESULT WINAPI IAVIStream_fnSetFormat(IAVIStream*iface,LONG pos,LPVOID format,LONG formatsize);
116 static HRESULT WINAPI IAVIStream_fnRead(IAVIStream*iface,LONG start,LONG samples,LPVOID buffer,LONG buffersize,LONG *bytesread,LONG *samplesread);
117 static HRESULT WINAPI IAVIStream_fnWrite(IAVIStream*iface,LONG start,LONG samples,LPVOID buffer,LONG buffersize,DWORD flags,LONG *sampwritten,LONG *byteswritten);
118 static HRESULT WINAPI IAVIStream_fnDelete(IAVIStream*iface,LONG start,LONG samples);
119 static HRESULT WINAPI IAVIStream_fnReadData(IAVIStream*iface,DWORD fcc,LPVOID lp,LONG *lpread);
120 static HRESULT WINAPI IAVIStream_fnWriteData(IAVIStream*iface,DWORD fcc,LPVOID lp,LONG size);
121 static HRESULT WINAPI IAVIStream_fnSetInfo(IAVIStream*iface,AVISTREAMINFOW*info,LONG infolen);
122
123 struct ICOM_VTABLE(IAVIStream) iavist = {
124 ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
125 IAVIStream_fnQueryInterface,
126 IAVIStream_fnAddRef,
127 IAVIStream_fnRelease,
128 IAVIStream_fnCreate,
129 IAVIStream_fnInfo,
130 IAVIStream_fnFindSample,
131 IAVIStream_fnReadFormat,
132 IAVIStream_fnSetFormat,
133 IAVIStream_fnRead,
134 IAVIStream_fnWrite,
135 IAVIStream_fnDelete,
136 IAVIStream_fnReadData,
137 IAVIStream_fnWriteData,
138 IAVIStream_fnSetInfo
139 };
140
141 typedef struct _IAVIFileImpl IAVIFileImpl;
142
143 typedef struct _IPersistFileImpl {
144 /* IUnknown stuff */
145 ICOM_VFIELD(IPersistFile);
146
147 /* IPersistFile stuff */
148 IAVIFileImpl *paf;
149 } IPersistFileImpl;
150
151 typedef struct _IAVIStreamImpl {
152 /* IUnknown stuff */
153 ICOM_VFIELD(IAVIStream);
154 DWORD ref;
155
156 /* IAVIStream stuff */
157 IAVIFileImpl *paf;
158 DWORD nStream; /* the n-th stream in file */
159 AVISTREAMINFOW sInfo;
160
161 LPVOID lpFormat;
162 DWORD cbFormat;
163
164 LPVOID lpHandlerData;
165 DWORD cbHandlerData;
166
167 EXTRACHUNKS extra;
168
169 LPDWORD lpBuffer;
170 DWORD cbBuffer; /* size of lpBuffer */
171 DWORD dwCurrentFrame; /* frame/block currently in lpBuffer */
172
173 LONG lLastFrame; /* last correct index in idxFrames */
174 AVIINDEXENTRY *idxFrames;
175 DWORD nIdxFrames; /* upper index limit of idxFrames */
176 AVIINDEXENTRY *idxFmtChanges;
177 DWORD nIdxFmtChanges; /* upper index limit of idxFmtChanges */
178 } IAVIStreamImpl;
179
180 struct _IAVIFileImpl {
181 /* IUnknown stuff */
182 ICOM_VFIELD(IAVIFile);
183 DWORD ref;
184
185 /* IAVIFile stuff... */
186 IPersistFileImpl iPersistFile;
187
188 AVIFILEINFOW fInfo;
189 IAVIStreamImpl *ppStreams[MAX_AVISTREAMS];
190
191 EXTRACHUNKS fileextra;
192
193 DWORD dwMoviChunkPos; /* some stuff for saving ... */
194 DWORD dwIdxChunkPos;
195 DWORD dwNextFramePos;
196 DWORD dwInitialFrames;
197
198 MMCKINFO ckLastRecord;
199 AVIINDEXENTRY *idxRecords; /* won't be updated while loading */
200 DWORD nIdxRecords; /* current fill level */
201 DWORD cbIdxRecords; /* size of idxRecords */
202
203 /* IPersistFile stuff ... */
204 HMMIO hmmio;
205 LPWSTR szFileName;
206 UINT uMode;
207 BOOL fDirty;
208 };
209
210 /***********************************************************************/
211
212 static HRESULT AVIFILE_AddFrame(IAVIStreamImpl *This, DWORD ckid, DWORD size,
213 DWORD offset, DWORD flags);
214 static HRESULT AVIFILE_AddRecord(IAVIFileImpl *This);
215 static DWORD AVIFILE_ComputeMoviStart(IAVIFileImpl *This);
216 static void AVIFILE_ConstructAVIStream(IAVIFileImpl *paf, DWORD nr,
217 LPAVISTREAMINFOW asi);
218 static void AVIFILE_DestructAVIStream(IAVIStreamImpl *This);
219 static HRESULT AVIFILE_LoadFile(IAVIFileImpl *This);
220 static HRESULT AVIFILE_LoadIndex(IAVIFileImpl *This, DWORD size, DWORD offset);
221 static HRESULT AVIFILE_ParseIndex(IAVIFileImpl *This, AVIINDEXENTRY *lp,
222 LONG count, DWORD pos, BOOL *bAbsolute);
223 static HRESULT AVIFILE_ReadBlock(IAVIStreamImpl *This, DWORD start,
224 LPVOID buffer, LONG size);
225 static void AVIFILE_SamplesToBlock(IAVIStreamImpl *This, LPLONG pos,
226 LPLONG offset);
227 static HRESULT AVIFILE_SaveFile(IAVIFileImpl *This);
228 static HRESULT AVIFILE_SaveIndex(IAVIFileImpl *This);
229 static ULONG AVIFILE_SearchStream(IAVIFileImpl *This, DWORD fccType,
230 LONG lSkip);
231 static void AVIFILE_UpdateInfo(IAVIFileImpl *This);
232 static HRESULT AVIFILE_WriteBlock(IAVIStreamImpl *This, DWORD block,
233 FOURCC ckid, DWORD flags, LPVOID buffer,
234 LONG size);
235
236 HRESULT AVIFILE_CreateAVIFile(REFIID riid, LPVOID *ppv)
237 {
238 IAVIFileImpl *pfile;
239 HRESULT hr;
240
241 assert(riid != NULL && ppv != NULL);
242
243 *ppv = NULL;
244
245 pfile = (IAVIFileImpl*)LocalAlloc(LPTR, sizeof(IAVIFileImpl));
246 if (pfile == NULL)
247 return AVIERR_MEMORY;
248
249 pfile->lpVtbl = &iavift;
250 pfile->ref = 0;
251 pfile->iPersistFile.lpVtbl = &ipersistft;
252 pfile->iPersistFile.paf = pfile;
253
254 hr = IUnknown_QueryInterface((IUnknown*)pfile, riid, ppv);
255 if (FAILED(hr))
256 LocalFree((HLOCAL)pfile);
257
258 return hr;
259 }
260
261 static HRESULT WINAPI IAVIFile_fnQueryInterface(IAVIFile *iface, REFIID refiid,
262 LPVOID *obj)
263 {
264 ICOM_THIS(IAVIFileImpl,iface);
265
266 TRACE("(%p,%s,%p)\n", This, debugstr_guid(refiid), obj);
267
268 if (IsEqualGUID(&IID_IUnknown, refiid) ||
269 IsEqualGUID(&IID_IAVIFile, refiid)) {
270 *obj = iface;
271 IAVIFile_AddRef(iface);
272
273 return S_OK;
274 } else if (IsEqualGUID(&IID_IPersistFile, refiid)) {
275 *obj = &This->iPersistFile;
276 IAVIFile_AddRef(iface);
277
278 return S_OK;
279 }
280
281 return OLE_E_ENUM_NOMORE;
282 }
283
284 static ULONG WINAPI IAVIFile_fnAddRef(IAVIFile *iface)
285 {
286 ICOM_THIS(IAVIFileImpl,iface);
287
288 TRACE("(%p) -> %ld\n", iface, This->ref + 1);
289 return ++(This->ref);
290 }
291
292 static ULONG WINAPI IAVIFile_fnRelease(IAVIFile *iface)
293 {
294 ICOM_THIS(IAVIFileImpl,iface);
295 UINT i;
296
297 TRACE("(%p) -> %ld\n", iface, This->ref - 1);
298
299 if (!--(This->ref)) {
300 if (This->fDirty) {
301 /* need to write headers to file */
302 AVIFILE_SaveFile(This);
303 }
304
305 for (i = 0; i < This->fInfo.dwStreams; i++) {
306 if (This->ppStreams[i] != NULL) {
307 if (This->ppStreams[i]->ref != 0) {
308 ERR(": someone has still a reference to stream %u (%p)!\n",
309 i, This->ppStreams[i]);
310 }
311 AVIFILE_DestructAVIStream(This->ppStreams[i]);
312 LocalFree((HLOCAL)This->ppStreams[i]);
313 This->ppStreams[i] = NULL;
314 }
315 }
316
317 if (This->idxRecords != NULL) {
318 GlobalFreePtr(This->idxRecords);
319 This->idxRecords = NULL;
320 This->nIdxRecords = 0;
321 }
322
323 if (This->fileextra.lp != NULL) {
324 GlobalFreePtr(This->fileextra.lp);
325 This->fileextra.lp = NULL;
326 This->fileextra.cb = 0;
327 }
328
329 if (This->szFileName != NULL) {
330 LocalFree((HLOCAL)This->szFileName);
331 This->szFileName = NULL;
332 }
333 if (This->hmmio != NULL) {
334 mmioClose(This->hmmio, 0);
335 This->hmmio = NULL;
336 }
337
338 LocalFree((HLOCAL)This);
339 return 0;
340 }
341 return This->ref;
342 }
343
344 static HRESULT WINAPI IAVIFile_fnInfo(IAVIFile *iface, LPAVIFILEINFOW afi,
345 LONG size)
346 {
347 ICOM_THIS(IAVIFileImpl,iface);
348
349 TRACE("(%p,%p,%ld)\n",iface,afi,size);
350
351 if (afi == NULL)
352 return AVIERR_BADPARAM;
353 if (size < 0)
354 return AVIERR_BADSIZE;
355
356 AVIFILE_UpdateInfo(This);
357
358 memcpy(afi, &This->fInfo, min((DWORD)size, sizeof(This->fInfo)));
359
360 if ((DWORD)size < sizeof(This->fInfo))
361 return AVIERR_BUFFERTOOSMALL;
362 return AVIERR_OK;
363 }
364
365 static HRESULT WINAPI IAVIFile_fnGetStream(IAVIFile *iface, PAVISTREAM *avis,
366 DWORD fccType, LONG lParam)
367 {
368 ICOM_THIS(IAVIFileImpl,iface);
369
370 ULONG nStream;
371
372 TRACE("(%p,%p,0x%08lX,%ld)\n", iface, avis, fccType, lParam);
373
374 if (avis == NULL || lParam < 0)
375 return AVIERR_BADPARAM;
376
377 nStream = AVIFILE_SearchStream(This, fccType, lParam);
378
379 /* Does the requested stream exist? */
380 if (nStream < This->fInfo.dwStreams &&
381 This->ppStreams[nStream] != NULL) {
382 *avis = (PAVISTREAM)This->ppStreams[nStream];
383 IAVIStream_AddRef(*avis);
384
385 return AVIERR_OK;
386 }
387
388 /* Sorry, but the specified stream doesn't exist */
389 return AVIERR_NODATA;
390 }
391
392 static HRESULT WINAPI IAVIFile_fnCreateStream(IAVIFile *iface,PAVISTREAM *avis,
393 LPAVISTREAMINFOW asi)
394 {
395 ICOM_THIS(IAVIFileImpl,iface);
396
397 DWORD n;
398
399 TRACE("(%p,%p,%p)\n", iface, avis, asi);
400
401 /* check parameters */
402 if (avis == NULL || asi == NULL)
403 return AVIERR_BADPARAM;
404
405 *avis = NULL;
406
407 /* Does the user have write permission? */
408 if ((This->uMode & MMIO_RWMODE) == 0)
409 return AVIERR_READONLY;
410
411 /* Can we add another stream? */
412 n = This->fInfo.dwStreams;
413 if (n >= MAX_AVISTREAMS || This->dwMoviChunkPos != 0) {
414 /* already reached max nr of streams
415 * or have already written frames to disk */
416 return AVIERR_UNSUPPORTED;
417 }
418
419 /* check AVISTREAMINFO for some really needed things */
420 if (asi->fccType == 0 || asi->dwScale == 0 || asi->dwRate == 0)
421 return AVIERR_BADFORMAT;
422
423 /* now it seems to be save to add the stream */
424 assert(This->ppStreams[n] == NULL);
425 This->ppStreams[n] = (IAVIStreamImpl*)LocalAlloc(LPTR,
426 sizeof(IAVIStreamImpl));
427 if (This->ppStreams[n] == NULL)
428 return AVIERR_MEMORY;
429
430 /* initialize the new allocated stream */
431 AVIFILE_ConstructAVIStream(This, n, asi);
432
433 This->fInfo.dwStreams++;
434 This->fDirty = TRUE;
435
436 /* update our AVIFILEINFO structure */
437 AVIFILE_UpdateInfo(This);
438
439 /* return it */
440 *avis = (PAVISTREAM)This->ppStreams[n];
441 IAVIStream_AddRef(*avis);
442
443 return AVIERR_OK;
444 }
445
446 static HRESULT WINAPI IAVIFile_fnWriteData(IAVIFile *iface, DWORD ckid,
447 LPVOID lpData, LONG size)
448 {
449 ICOM_THIS(IAVIFileImpl,iface);
450
451 TRACE("(%p,0x%08lX,%p,%ld)\n", iface, ckid, lpData, size);
452
453 /* check parameters */
454 if (lpData == NULL)
455 return AVIERR_BADPARAM;
456 if (size < 0)
457 return AVIERR_BADSIZE;
458
459 /* Do we have write permission? */
460 if ((This->uMode & MMIO_RWMODE) == 0)
461 return AVIERR_READONLY;
462
463 This->fDirty = TRUE;
464
465 return WriteExtraChunk(&This->fileextra, ckid, lpData, size);
466 }
467
468 static HRESULT WINAPI IAVIFile_fnReadData(IAVIFile *iface, DWORD ckid,
469 LPVOID lpData, LONG *size)
470 {
471 ICOM_THIS(IAVIFileImpl,iface);
472
473 TRACE("(%p,0x%08lX,%p,%p)\n", iface, ckid, lpData, size);
474
475 return ReadExtraChunk(&This->fileextra, ckid, lpData, size);
476 }
477
478 static HRESULT WINAPI IAVIFile_fnEndRecord(IAVIFile *iface)
479 {
480 ICOM_THIS(IAVIFileImpl,iface);
481
482 TRACE("(%p)\n",iface);
483
484 if ((This->uMode & MMIO_RWMODE) == 0)
485 return AVIERR_READONLY;
486
487 This->fDirty = TRUE;
488
489 /* no frames written to any stream? -- compute start of 'movi'-chunk */
490 if (This->dwMoviChunkPos == 0)
491 AVIFILE_ComputeMoviStart(This);
492
493 This->fInfo.dwFlags |= AVIFILEINFO_ISINTERLEAVED;
494
495 /* already written frames to any stream, ... */
496 if (This->ckLastRecord.dwFlags & MMIO_DIRTY) {
497 /* close last record */
498 if (mmioAscend(This->hmmio, &This->ckLastRecord, 0) != 0)
499 return AVIERR_FILEWRITE;
500
501 AVIFILE_AddRecord(This);
502
503 if (This->fInfo.dwSuggestedBufferSize < This->ckLastRecord.cksize + 3 * sizeof(DWORD))
504 This->fInfo.dwSuggestedBufferSize = This->ckLastRecord.cksize + 3 * sizeof(DWORD);
505 }
506
507 /* write out a new record into file, but don't close it */
508 This->ckLastRecord.cksize = 0;
509 This->ckLastRecord.fccType = listtypeAVIRECORD;
510 if (mmioSeek(This->hmmio, This->dwNextFramePos, SEEK_SET) == -1)
511 return AVIERR_FILEWRITE;
512 if (mmioCreateChunk(This->hmmio, &This->ckLastRecord, MMIO_CREATELIST) != 0)
513 return AVIERR_FILEWRITE;
514 This->dwNextFramePos += 3 * sizeof(DWORD);
515
516 return AVIERR_OK;
517 }
518
519 static HRESULT WINAPI IAVIFile_fnDeleteStream(IAVIFile *iface, DWORD fccType,
520 LONG lParam)
521 {
522 ICOM_THIS(IAVIFileImpl,iface);
523
524 ULONG nStream;
525
526 TRACE("(%p,0x%08lX,%ld)\n", iface, fccType, lParam);
527
528 /* check parameter */
529 if (lParam < 0)
530 return AVIERR_BADPARAM;
531
532 /* Habe user write permissions? */
533 if ((This->uMode & MMIO_RWMODE) == 0)
534 return AVIERR_READONLY;
535
536 nStream = AVIFILE_SearchStream(This, fccType, lParam);
537
538 /* Does the requested stream exist? */
539 if (nStream < This->fInfo.dwStreams &&
540 This->ppStreams[nStream] != NULL) {
541 /* ... so delete it now */
542 LocalFree((HLOCAL)This->ppStreams[nStream]);
543
544 if (This->fInfo.dwStreams - nStream > 0)
545 memcpy(This->ppStreams + nStream, This->ppStreams + nStream + 1,
546 (This->fInfo.dwStreams - nStream) * sizeof(IAVIStreamImpl*));
547
548 This->ppStreams[This->fInfo.dwStreams] = NULL;
549 This->fInfo.dwStreams--;
550 This->fDirty = TRUE;
551
552 /* This->fInfo will be updated further when asked for */
553 return AVIERR_OK;
554 } else
555 return AVIERR_NODATA;
556 }
557
558 /***********************************************************************/
559
560 static HRESULT WINAPI IPersistFile_fnQueryInterface(IPersistFile *iface,
561 REFIID refiid, LPVOID *obj)
562 {
563 ICOM_THIS(IPersistFileImpl,iface);
564
565 assert(This->paf != NULL);
566
567 return IAVIFile_QueryInterface((PAVIFILE)This->paf, refiid, obj);
568 }
569
570 static ULONG WINAPI IPersistFile_fnAddRef(IPersistFile *iface)
571 {
572 ICOM_THIS(IPersistFileImpl,iface);
573
574 assert(This->paf != NULL);
575
576 return IAVIFile_AddRef((PAVIFILE)This->paf);
577 }
578
579 static ULONG WINAPI IPersistFile_fnRelease(IPersistFile *iface)
580 {
581 ICOM_THIS(IPersistFileImpl,iface);
582
583 assert(This->paf != NULL);
584
585 return IAVIFile_Release((PAVIFILE)This->paf);
586 }
587
588 static HRESULT WINAPI IPersistFile_fnGetClassID(IPersistFile *iface,
589 LPCLSID pClassID)
590 {
591 TRACE("(%p,%p)\n", iface, pClassID);
592
593 if (pClassID == NULL)
594 return AVIERR_BADPARAM;
595
596 memcpy(pClassID, &CLSID_AVIFile, sizeof(CLSID_AVIFile));
597
598 return AVIERR_OK;
599 }
600
601 static HRESULT WINAPI IPersistFile_fnIsDirty(IPersistFile *iface)
602 {
603 ICOM_THIS(IPersistFileImpl,iface);
604
605 TRACE("(%p)\n", iface);
606
607 assert(This->paf != NULL);
608
609 return (This->paf->fDirty ? S_OK : S_FALSE);
610 }
611
612 static HRESULT WINAPI IPersistFile_fnLoad(IPersistFile *iface,
613 LPCOLESTR pszFileName, DWORD dwMode)
614 {
615 ICOM_THIS(IPersistFileImpl,iface);
616
617 int len;
618
619 TRACE("(%p,%s,0x%08lX)\n", iface, debugstr_w(pszFileName), dwMode);
620
621 /* check parameter */
622 if (pszFileName == NULL)
623 return AVIERR_BADPARAM;
624
625 assert(This->paf != NULL);
626 if (This->paf->hmmio != NULL)
627 return AVIERR_ERROR; /* No reuse of this object for another file! */
628
629 /* remeber mode and name */
630 This->paf->uMode = dwMode;
631
632 len = lstrlenW(pszFileName) + 1;
633 This->paf->szFileName = (LPWSTR)LocalAlloc(LPTR, len * sizeof(WCHAR));
634 if (This->paf->szFileName == NULL)
635 return AVIERR_MEMORY;
636 lstrcpyW(This->paf->szFileName, pszFileName);
637
638 /* try to open the file */
639 This->paf->hmmio = mmioOpenW(This->paf->szFileName, NULL,
640 MMIO_ALLOCBUF | dwMode);
641 if (This->paf->hmmio == NULL) {
642 /* mmioOpenW not in native DLLs of Win9x -- try mmioOpenA */
643 LPSTR szFileName = LocalAlloc(LPTR, len * sizeof(CHAR));
644 if (szFileName == NULL)
645 return AVIERR_MEMORY;
646
647 WideCharToMultiByte(CP_ACP, 0, This->paf->szFileName, -1, szFileName,
648 len, NULL, NULL);
649
650 This->paf->hmmio = mmioOpenA(szFileName, NULL, MMIO_ALLOCBUF | dwMode);
651 LocalFree((HLOCAL)szFileName);
652 if (This->paf->hmmio == NULL)
653 return AVIERR_FILEOPEN;
654 }
655
656 /* should we create a new file? */
657 if (dwMode & OF_CREATE) {
658 memset(& This->paf->fInfo, 0, sizeof(This->paf->fInfo));
659 This->paf->fInfo.dwFlags = AVIFILEINFO_HASINDEX | AVIFILEINFO_TRUSTCKTYPE;
660
661 return AVIERR_OK;
662 } else
663 return AVIFILE_LoadFile(This->paf);
664 }
665
666 static HRESULT WINAPI IPersistFile_fnSave(IPersistFile *iface,
667 LPCOLESTR pszFileName,BOOL fRemember)
668 {
669 TRACE("(%p,%s,%d)\n", iface, debugstr_w(pszFileName), fRemember);
670
671 /* We write directly to disk, so nothing to do. */
672
673 return AVIERR_OK;
674 }
675
676 static HRESULT WINAPI IPersistFile_fnSaveCompleted(IPersistFile *iface,
677 LPCOLESTR pszFileName)
678 {
679 TRACE("(%p,%s)\n", iface, debugstr_w(pszFileName));
680
681 /* We write directly to disk, so nothing to do. */
682
683 return AVIERR_OK;
684 }
685
686 static HRESULT WINAPI IPersistFile_fnGetCurFile(IPersistFile *iface,
687 LPOLESTR *ppszFileName)
688 {
689 ICOM_THIS(IPersistFileImpl,iface);
690
691 TRACE("(%p,%p)\n", iface, ppszFileName);
692
693 if (ppszFileName == NULL)
694 return AVIERR_BADPARAM;
695
696 *ppszFileName = NULL;
697
698 assert(This->paf != NULL);
699
700 if (This->paf->szFileName != NULL) {
701 int len = lstrlenW(This->paf->szFileName);
702
703 *ppszFileName = (LPOLESTR)GlobalAllocPtr(GHND, len * sizeof(WCHAR));
704 if (*ppszFileName == NULL)
705 return AVIERR_MEMORY;
706
707 memcpy(*ppszFileName, This->paf->szFileName, len * sizeof(WCHAR));
708 }
709
710 return AVIERR_OK;
711 }
712
713 /***********************************************************************/
714
715 static HRESULT WINAPI IAVIStream_fnQueryInterface(IAVIStream *iface,
716 REFIID refiid, LPVOID *obj)
717 {
718 ICOM_THIS(IAVIStreamImpl,iface);
719
720 TRACE("(%p,%s,%p)\n", iface, debugstr_guid(refiid), obj);
721
722 if (IsEqualGUID(&IID_IUnknown, refiid) ||
723 IsEqualGUID(&IID_IAVIStream, refiid)) {
724 *obj = This;
725 IAVIStream_AddRef(iface);
726
727 return S_OK;
728 }
729 /* FIXME: IAVIStreaming interface */
730
731 return OLE_E_ENUM_NOMORE;
732 }
733
734 static ULONG WINAPI IAVIStream_fnAddRef(IAVIStream *iface)
735 {
736 ICOM_THIS(IAVIStreamImpl,iface);
737
738 TRACE("(%p) -> %ld\n", iface, This->ref + 1);
739
740 /* also add ref to parent, so that it doesn't kill us */
741 if (This->paf != NULL)
742 IAVIFile_AddRef((PAVIFILE)This->paf);
743
744 return ++(This->ref);
745 }
746
747 static ULONG WINAPI IAVIStream_fnRelease(IAVIStream* iface)
748 {
749 ICOM_THIS(IAVIStreamImpl,iface);
750
751 TRACE("(%p) -> %ld\n", iface, This->ref - 1);
752
753 /* we belong to the AVIFile, which must free us! */
754 if (This->ref == 0) {
755 ERR(": already released!\n");
756 return 0;
757 }
758
759 if (This->paf != NULL)
760 IAVIFile_Release((PAVIFILE)This->paf);
761
762 return --This->ref;
763 }
764
765 static HRESULT WINAPI IAVIStream_fnCreate(IAVIStream *iface, LPARAM lParam1,
766 LPARAM lParam2)
767 {
768 TRACE("(%p,0x%08lX,0x%08lX)\n", iface, lParam1, lParam2);
769
770 /* This IAVIStream interface needs an AVIFile */
771 return AVIERR_UNSUPPORTED;
772 }
773
774 static HRESULT WINAPI IAVIStream_fnInfo(IAVIStream *iface,LPAVISTREAMINFOW psi,
775 LONG size)
776 {
777 ICOM_THIS(IAVIStreamImpl,iface);
778
779 TRACE("(%p,%p,%ld)\n", iface, psi, size);
780
781 if (psi == NULL)
782 return AVIERR_BADPARAM;
783 if (size < 0)
784 return AVIERR_BADSIZE;
785
786 memcpy(psi, &This->sInfo, min((DWORD)size, sizeof(This->sInfo)));
787
788 if ((DWORD)size < sizeof(This->sInfo))
789 return AVIERR_BUFFERTOOSMALL;
790 return AVIERR_OK;
791 }
792
793 static LONG WINAPI IAVIStream_fnFindSample(IAVIStream *iface, LONG pos,
794 LONG flags)
795 {
796 ICOM_THIS(IAVIStreamImpl,iface);
797
798 LONG offset = 0;
799
800 TRACE("(%p,%ld,0x%08lX)\n",iface,pos,flags);
801
802 if (flags & FIND_FROM_START) {
803 pos = This->sInfo.dwStart;
804 flags &= ~(FIND_FROM_START|FIND_PREV);
805 flags |= FIND_NEXT;
806 }
807
808 if (This->sInfo.dwSampleSize != 0) {
809 /* convert samples into block number with offset */
810 AVIFILE_SamplesToBlock(This, &pos, &offset);
811 }
812
813 if (flags & FIND_TYPE) {
814 if (flags & FIND_KEY) {
815 while (0 <= pos && pos <= This->lLastFrame) {
816 if (This->idxFrames[pos].dwFlags & AVIIF_KEYFRAME)
817 goto RETURN_FOUND;
818
819 if (flags & FIND_NEXT)
820 pos++;
821 else
822 pos--;
823 };
824 } else if (flags & FIND_ANY) {
825 while (0 <= pos && pos <= This->lLastFrame) {
826 if (This->idxFrames[pos].dwChunkLength > 0)
827 goto RETURN_FOUND;
828
829 if (flags & FIND_NEXT)
830 pos++;
831 else
832 pos--;
833
834 };
835 } else if ((flags & FIND_FORMAT) && This->idxFmtChanges != NULL &&
836 This->sInfo.fccType == streamtypeVIDEO) {
837 if (flags & FIND_NEXT) {
838 ULONG n;
839
840 for (n = 0; n < This->sInfo.dwFormatChangeCount; n++)
841 if (This->idxFmtChanges[n].ckid >= pos)
842 goto RETURN_FOUND;
843 } else {
844 LONG n;
845
846 for (n = (LONG)This->sInfo.dwFormatChangeCount; n >= 0; n--) {
847 if (This->idxFmtChanges[n].ckid <= pos)
848 goto RETURN_FOUND;
849 }
850
851 if (pos > (LONG)This->sInfo.dwStart)
852 return 0; /* format changes always for first frame */
853 }
854 }
855
856 return -1;
857 }
858
859 if (flags & FIND_RET) {
860 RETURN_FOUND:
861 if (flags & FIND_LENGTH) {
862 /* logical size */
863 if (This->sInfo.dwSampleSize)
864 pos = This->sInfo.dwSampleSize;
865 else
866 pos = 1;
867 } else if (flags & FIND_OFFSET) {
868 /* physical position */
869 pos = This->idxFrames[pos].dwChunkOffset + offset * This->sInfo.dwSampleSize;
870 } else if (flags & FIND_SIZE) {
871 /* physical size */
872 pos = This->idxFrames[pos].dwChunkLength;
873 } else if (flags & FIND_INDEX) {
874 FIXME(": FIND_INDEX flag is not supported!");
875
876 pos = This->paf->dwIdxChunkPos;
877 } /* else logical position */
878
879 return pos;
880 }
881
882 return -1;
883 }
884
885 static HRESULT WINAPI IAVIStream_fnReadFormat(IAVIStream *iface, LONG pos,
886 LPVOID format, LONG *formatsize)
887 {
888 ICOM_THIS(IAVIStreamImpl,iface);
889
890 TRACE("(%p,%ld,%p,%p)\n", iface, pos, format, formatsize);
891
892 if (formatsize == NULL)
893 return AVIERR_BADPARAM;
894
895 /* only interested in needed buffersize? */
896 if (format == NULL || *formatsize <= 0) {
897 *formatsize = This->cbFormat;
898
899 return AVIERR_OK;
900 }
901
902 /* copy initial format (only as much as will fit) */
903 memcpy(format, This->lpFormat, min(*(DWORD*)formatsize, This->cbFormat));
904 if (*(DWORD*)formatsize < This->cbFormat) {
905 *formatsize = This->cbFormat;
906 return AVIERR_BUFFERTOOSMALL;
907 }
908
909 /* Could format change? When yes will it change? */
910 if ((This->sInfo.dwFlags & AVISTREAMINFO_FORMATCHANGES) &&
911 pos > This->sInfo.dwStart) {
912 LONG lLastFmt;
913
914 lLastFmt = IAVIStream_fnFindSample(iface, pos, FIND_FORMAT|FIND_PREV);
915 if (lLastFmt > 0) {
916 FIXME(": need to read formatchange for %ld -- unimplemented!\n",lLastFmt);
917 }
918 }
919
920 *formatsize = This->cbFormat;
921 return AVIERR_OK;
922 }
923
924 static HRESULT WINAPI IAVIStream_fnSetFormat(IAVIStream *iface, LONG pos,
925 LPVOID format, LONG formatsize)
926 {
927 ICOM_THIS(IAVIStreamImpl,iface);
928
929 LPBITMAPINFOHEADER lpbiNew = (LPBITMAPINFOHEADER)format;
930
931 TRACE("(%p,%ld,%p,%ld)\n", iface, pos, format, formatsize);
932
933 /* check parameters */
934 if (format == NULL || formatsize <= 0)
935 return AVIERR_BADPARAM;
936
937 /* Do we have write permission? */
938 if ((This->paf->uMode & MMIO_RWMODE) == 0)
939 return AVIERR_READONLY;
940
941 /* can only set format before frame is written! */
942 if (This->lLastFrame > pos)
943 return AVIERR_UNSUPPORTED;
944
945 /* initial format or a formatchange? */
946 if (This->lpFormat == NULL) {
947 /* initial format */
948 if (This->paf->dwMoviChunkPos != 0)
949 return AVIERR_ERROR; /* user has used API in wrong sequnece! */
950
951 This->lpFormat = GlobalAllocPtr(GMEM_MOVEABLE, formatsize);
952 if (This->lpFormat == NULL)
953 return AVIERR_MEMORY;
954 This->cbFormat = formatsize;
955
956 memcpy(This->lpFormat, format, formatsize);
957
958 /* update some infos about stream */
959 if (This->sInfo.fccType == streamtypeVIDEO) {
960 LONG lDim;
961
962 lDim = This->sInfo.rcFrame.right - This->sInfo.rcFrame.left;
963 if (lDim < lpbiNew->biWidth)
964 This->sInfo.rcFrame.right = This->sInfo.rcFrame.left + lpbiNew->biWidth;
965 lDim = This->sInfo.rcFrame.bottom - This->sInfo.rcFrame.top;
966 if (lDim < lpbiNew->biHeight)
967 This->sInfo.rcFrame.bottom = This->sInfo.rcFrame.top + lpbiNew->biHeight;
968 } else if (This->sInfo.fccType == streamtypeAUDIO)
969 This->sInfo.dwSampleSize = ((LPWAVEFORMATEX)This->lpFormat)->nBlockAlign;
970
971 return AVIERR_OK;
972 } else {
973 MMCKINFO ck;
974 LPBITMAPINFOHEADER lpbiOld = (LPBITMAPINFOHEADER)This->lpFormat;
975 RGBQUAD *rgbNew = (RGBQUAD*)((LPBYTE)lpbiNew + lpbiNew->biSize);
976 AVIPALCHANGE *lppc = NULL;
977 INT n;
978
979 /* pherhaps formatchange, check it ... */
980 if (This->cbFormat != formatsize)
981 return AVIERR_UNSUPPORTED;
982
983 /* no formatchange, only the initial one */
984 if (memcmp(This->lpFormat, format, formatsize) == 0)
985 return AVIERR_OK;
986
987 /* check that's only the palette, which changes */
988 if (lpbiOld->biSize != lpbiNew->biSize ||
989 lpbiOld->biWidth != lpbiNew->biWidth ||
990 lpbiOld->biHeight != lpbiNew->biHeight ||
991 lpbiOld->biPlanes != lpbiNew->biPlanes ||
992 lpbiOld->biBitCount != lpbiNew->biBitCount ||
993 lpbiOld->biCompression != lpbiNew->biCompression ||
994 lpbiOld->biClrUsed != lpbiNew->biClrUsed)
995 return AVIERR_UNSUPPORTED;
996
997 This->sInfo.dwFlags |= AVISTREAMINFO_FORMATCHANGES;
998
999 /* simply say all colors have changed */
1000 ck.ckid = MAKEAVICKID(cktypePALchange, This->nStream);
1001 ck.cksize = 2 * sizeof(WORD) + lpbiOld->biClrUsed * sizeof(PALETTEENTRY);
1002 lppc = (AVIPALCHANGE*)GlobalAllocPtr(GMEM_MOVEABLE, ck.cksize);
1003 if (lppc == NULL)
1004 return AVIERR_MEMORY;
1005
1006 lppc->bFirstEntry = 0;
1007 lppc->bNumEntries = (lpbiOld->biClrUsed < 256 ? lpbiOld->biClrUsed : 0);
1008 lppc->wFlags = 0;
1009 for (n = 0; n < lpbiOld->biClrUsed; n++) {
1010 lppc->peNew[n].peRed = rgbNew[n].rgbRed;
1011 lppc->peNew[n].peGreen = rgbNew[n].rgbGreen;
1012 lppc->peNew[n].peBlue = rgbNew[n].rgbBlue;
1013 lppc->peNew[n].peFlags = 0;
1014 }
1015
1016 if (mmioSeek(This->paf->hmmio, This->paf->dwNextFramePos, SEEK_SET) == -1)
1017 return AVIERR_FILEWRITE;
1018 if (mmioCreateChunk(This->paf->hmmio, &ck, 0) != S_OK)
1019 return AVIERR_FILEWRITE;
1020 if (mmioWrite(This->paf->hmmio, (HPSTR)lppc, ck.cksize) != ck.cksize)
1021 return AVIERR_FILEWRITE;
1022 if (mmioAscend(This->paf->hmmio, &ck, 0) != S_OK)
1023 return AVIERR_FILEWRITE;
1024 This->paf->dwNextFramePos += ck.cksize + 2 * sizeof(DWORD);
1025
1026 GlobalFreePtr(lppc);
1027
1028 return AVIFILE_AddFrame(This, cktypePALchange, n, ck.dwDataOffset, 0);
1029 }
1030 }
1031
1032 static HRESULT WINAPI IAVIStream_fnRead(IAVIStream *iface, LONG start,
1033 LONG samples, LPVOID buffer,
1034 LONG buffersize, LPLONG bytesread,
1035 LPLONG samplesread)
1036 {
1037 ICOM_THIS(IAVIStreamImpl,iface);
1038
1039 DWORD size;
1040 HRESULT hr;
1041
1042 TRACE("(%p,%ld,%ld,%p,%ld,%p,%p)\n", iface, start, samples, buffer,
1043 buffersize, bytesread, samplesread);
1044
1045 /* clear return parameters if given */
1046 if (bytesread != NULL)
1047 *bytesread = 0;
1048 if (samplesread != NULL)
1049 *samplesread = 0;
1050
1051 /* check parameters */
1052 if ((LONG)This->sInfo.dwStart > start)
1053 return AVIERR_NODATA; /* couldn't read before start of stream */
1054 if (This->sInfo.dwStart + This->sInfo.dwLength < (DWORD)start)
1055 return AVIERR_NODATA; /* start is past end of stream */
1056
1057 /* should we read as much as possible? */
1058 if (samples == -1) {
1059 /* User should know how much we have read */
1060 if (bytesread == NULL && samplesread == NULL)
1061 return AVIERR_BADPARAM;
1062
1063 if (This->sInfo.dwSampleSize != 0)
1064 samples = buffersize / This->sInfo.dwSampleSize;
1065 else
1066 samples = 1;
1067 }
1068
1069 /* limit to end of stream */
1070 if ((LONG)This->sInfo.dwLength < samples)
1071 samples = This->sInfo.dwLength;
1072 if ((start - This->sInfo.dwStart) > (This->sInfo.dwLength - samples))
1073 samples = This->sInfo.dwLength - (start - This->sInfo.dwStart);
1074
1075 /* nothing to read? Then leave ... */
1076 if (samples == 0)
1077 return AVIERR_OK;
1078
1079 if (This->sInfo.dwSampleSize != 0) {
1080 /* fixed samplesize -- we can read over frame/block boundaries */
1081 LONG block = start;
1082 LONG offset = 0;
1083
1084 /* convert start sample to block,offset pair */
1085 AVIFILE_SamplesToBlock(This, &block, &offset);
1086
1087 /* convert samples to bytes */
1088 samples *= This->sInfo.dwSampleSize;
1089
1090 while (samples > 0 && buffersize > 0) {
1091 if (block != This->dwCurrentFrame) {
1092 hr = AVIFILE_ReadBlock(This, block, NULL, 0);
1093 if (FAILED(hr))
1094 return hr;
1095 }
1096
1097 size = min((DWORD)samples, (DWORD)buffersize);
1098 size = min(size, This->cbBuffer - offset);
1099 memcpy(buffer, ((BYTE*)&This->lpBuffer[2]) + offset, size);
1100
1101 block++;
1102 offset = 0;
1103 ((BYTE*)buffer) += size;
1104 samples -= size;
1105 buffersize -= size;
1106
1107 /* fill out return parameters if given */
1108 if (bytesread != NULL)
1109 *bytesread += size;
1110 if (samplesread != NULL)
1111 *samplesread += size / This->sInfo.dwSampleSize;
1112 }
1113
1114 if (samples == 0)
1115 return AVIERR_OK;
1116 else
1117 return AVIERR_BUFFERTOOSMALL;
1118 } else {
1119 /* variable samplesize -- we can only read one full frame/block */
1120 if (samples > 1)
1121 samples = 1;
1122
1123 assert(start <= This->lLastFrame);
1124 size = This->idxFrames[start].dwChunkLength;
1125 if (buffer != NULL && buffersize >= size) {
1126 hr = AVIFILE_ReadBlock(This, start, buffer, size);
1127 if (FAILED(hr))
1128 return hr;
1129 } else if (buffer != NULL)
1130 return AVIERR_BUFFERTOOSMALL;
1131
1132 /* fill out return parameters if given */
1133 if (bytesread != NULL)
1134 *bytesread = size;
1135 if (samplesread != NULL)
1136 *samplesread = samples;
1137
1138 return AVIERR_OK;
1139 }
1140 }
1141
1142 static HRESULT WINAPI IAVIStream_fnWrite(IAVIStream *iface, LONG start,
1143 LONG samples, LPVOID buffer,
1144 LONG buffersize, DWORD flags,
1145 LPLONG sampwritten,
1146 LPLONG byteswritten)
1147 {
1148 ICOM_THIS(IAVIStreamImpl,iface);
1149
1150 FOURCC ckid;
1151 HRESULT hr;
1152
1153 TRACE("(%p,%ld,%ld,%p,%ld,0x%08lX,%p,%p)\n", iface, start, samples,
1154 buffer, buffersize, flags, sampwritten, byteswritten);
1155
1156 /* clear return parameters if given */
1157 if (sampwritten != NULL)
1158 *sampwritten = 0;
1159 if (byteswritten != NULL)
1160 *byteswritten = 0;
1161
1162 /* check parameters */
1163 if (buffer == NULL && (buffersize > 0 || samples > 0))
1164 return AVIERR_BADPARAM;
1165
1166 /* Have we write permission? */
1167 if ((This->paf->uMode & MMIO_RWMODE) == 0)
1168 return AVIERR_READONLY;
1169
1170 switch (This->sInfo.fccType) {
1171 case streamtypeAUDIO:
1172 ckid = MAKEAVICKID(cktypeWAVEbytes, This->nStream);
1173 break;
1174 default:
1175 if ((flags & AVIIF_KEYFRAME) && buffersize != 0)
1176 ckid = MAKEAVICKID(cktypeDIBbits, This->nStream);
1177 else
1178 ckid = MAKEAVICKID(cktypeDIBcompressed, This->nStream);
1179 break;
1180 };
1181
1182 /* append to end of stream? */
1183 if (start == -1) {
1184 if (This->lLastFrame == -1)
1185 start = This->sInfo.dwStart;
1186 else
1187 start = This->sInfo.dwLength;
1188 } else if (This->lLastFrame == -1)
1189 This->sInfo.dwStart = start;
1190
1191 if (This->sInfo.dwSampleSize != 0) {
1192 /* fixed sample size -- audio like */
1193 if (samples * This->sInfo.dwSampleSize != buffersize)
1194 return AVIERR_BADPARAM;
1195
1196 /* Couldn't skip audio-like data -- User must supply appropriate silence */
1197 if (This->sInfo.dwLength != start)
1198 return AVIERR_UNSUPPORTED;
1199
1200 /* Convert position to frame/block */
1201 start = This->lLastFrame + 1;
1202
1203 if ((This->paf->fInfo.dwFlags & AVIFILEINFO_ISINTERLEAVED) == 0) {
1204 FIXME(": not interleaved, could collect audio data!\n");
1205 }
1206 } else {
1207 /* variable sample size -- video like */
1208 if (samples > 1)
1209 return AVIERR_UNSUPPORTED;
1210
1211 /* must we fill up with empty frames? */
1212 if (This->lLastFrame != -1) {
1213 FOURCC ckid2 = MAKEAVICKID(cktypeDIBcompressed, This->nStream);
1214
1215 while (start > This->lLastFrame + 1) {
1216 hr = AVIFILE_WriteBlock(This, This->lLastFrame + 1, ckid2, 0, NULL, 0);
1217 if (FAILED(hr))
1218 return hr;
1219 }
1220 }
1221 }
1222
1223 /* write the block now */
1224 hr = AVIFILE_WriteBlock(This, start, ckid, flags, buffer, buffersize);
1225 if (SUCCEEDED(hr)) {
1226 /* fill out return parameters if given */
1227 if (sampwritten != NULL)
1228 *sampwritten = samples;
1229 if (byteswritten != NULL)
1230 *byteswritten = buffersize;
1231 }
1232
1233 return hr;
1234 }
1235
1236 static HRESULT WINAPI IAVIStream_fnDelete(IAVIStream *iface, LONG start,
1237 LONG samples)
1238 {
1239 ICOM_THIS(IAVIStreamImpl,iface);
1240
1241 FIXME("(%p,%ld,%ld): stub\n", iface, start, samples);
1242
1243 /* check parameters */
1244 if (start < 0 || samples < 0)
1245 return AVIERR_BADPARAM;
1246
1247 /* Delete before start of stream? */
1248 if (start + samples < This->sInfo.dwStart)
1249 return AVIERR_OK;
1250
1251 /* Delete after end of stream? */
1252 if (start > This->sInfo.dwLength)
1253 return AVIERR_OK;
1254
1255 /* For the rest we need write permissions */
1256 if ((This->paf->uMode & MMIO_RWMODE) == 0)
1257 return AVIERR_READONLY;
1258
1259 /* 1. overwrite the data with JUNK
1260 *
1261 * if ISINTERLEAVED {
1262 * 2. concat all neighboured JUNK-blocks in this record to one
1263 * 3. if this record only contains JUNK and is at end set dwNextFramePos
1264 * to start of this record, repeat this.
1265 * } else {
1266 * 2. concat all neighboured JUNK-blocks.
1267 * 3. if the JUNK block is at the end, then set dwNextFramePos to
1268 * start of this block.
1269 * }
1270 */
1271
1272 return AVIERR_UNSUPPORTED;
1273 }
1274
1275 static HRESULT WINAPI IAVIStream_fnReadData(IAVIStream *iface, DWORD fcc,
1276 LPVOID lp, LPLONG lpread)
1277 {
1278 ICOM_THIS(IAVIStreamImpl,iface);
1279
1280 TRACE("(%p,0x%08lX,%p,%p)\n", iface, fcc, lp, lpread);
1281
1282 if (fcc == ckidSTREAMHANDLERDATA) {
1283 if (This->lpHandlerData != NULL && This->cbHandlerData > 0) {
1284 if (lp == NULL || *lpread <= 0) {
1285 *lpread = This->cbHandlerData;
1286 return AVIERR_OK;
1287 }
1288
1289 memcpy(lp, This->lpHandlerData, min(This->cbHandlerData, *lpread));
1290 if (*lpread < This->cbHandlerData)
1291 return AVIERR_BUFFERTOOSMALL;
1292 return AVIERR_OK;
1293 } else
1294 return AVIERR_NODATA;
1295 } else
1296 return ReadExtraChunk(&This->extra, fcc, lp, lpread);
1297 }
1298
1299 static HRESULT WINAPI IAVIStream_fnWriteData(IAVIStream *iface, DWORD fcc,
1300 LPVOID lp, LONG size)
1301 {
1302 ICOM_THIS(IAVIStreamImpl,iface);
1303
1304 TRACE("(%p,0x%08lx,%p,%ld)\n", iface, fcc, lp, size);
1305
1306 /* check parameters */
1307 if (lp == NULL)
1308 return AVIERR_BADPARAM;
1309 if (size <= 0)
1310 return AVIERR_BADSIZE;
1311
1312 /* need write permission */
1313 if ((This->paf->uMode & MMIO_RWMODE) == 0)
1314 return AVIERR_READONLY;
1315
1316 /* already written something to this file? */
1317 if (This->paf->dwMoviChunkPos != 0) {
1318 /* the data will be inserted before the 'movi' chunk, so check for
1319 * enough space */
1320 DWORD dwPos = AVIFILE_ComputeMoviStart(This->paf);
1321
1322 /* ckid,size => 2 * sizeof(DWORD) */
1323 dwPos += 2 * sizeof(DWORD) + size;
1324 if (size >= This->paf->dwMoviChunkPos - 2 * sizeof(DWORD))
1325 return AVIERR_UNSUPPORTED; /* not enough space left */
1326 }
1327
1328 This->paf->fDirty = TRUE;
1329
1330 if (fcc == ckidSTREAMHANDLERDATA) {
1331 if (This->lpHandlerData != NULL) {
1332 FIXME(": handler data already set -- overwirte?\n");
1333 return AVIERR_UNSUPPORTED;
1334 }
1335
1336 This->lpHandlerData = GlobalAllocPtr(GMEM_MOVEABLE, size);
1337 if (This->lpHandlerData == NULL)
1338 return AVIERR_MEMORY;
1339 This->cbHandlerData = size;
1340 memcpy(This->lpHandlerData, lp, size);
1341
1342 return AVIERR_OK;
1343 } else
1344 return WriteExtraChunk(&This->extra, fcc, lp, size);
1345 }
1346
1347 static HRESULT WINAPI IAVIStream_fnSetInfo(IAVIStream *iface,
1348 LPAVISTREAMINFOW info, LONG infolen)
1349 {
1350 FIXME("(%p,%p,%ld): stub\n", iface, info, infolen);
1351
1352 return E_FAIL;
1353 }
1354
1355 /***********************************************************************/
1356
1357 static HRESULT AVIFILE_AddFrame(IAVIStreamImpl *This, DWORD ckid, DWORD size, DWORD offset, DWORD flags)
1358 {
1359 /* pre-conditions */
1360 assert(This != NULL);
1361
1362 switch (TWOCCFromFOURCC(ckid)) {
1363 case cktypeDIBbits:
1364 if (This->paf->fInfo.dwFlags & AVIFILEINFO_TRUSTCKTYPE)
1365 flags |= AVIIF_KEYFRAME;
1366 break;
1367 case cktypeDIBcompressed:
1368 if (This->paf->fInfo.dwFlags & AVIFILEINFO_TRUSTCKTYPE)
1369 flags &= ~AVIIF_KEYFRAME;
1370 break;
1371 case cktypePALchange:
1372 if (This->sInfo.fccType != streamtypeVIDEO) {
1373 ERR(": found palette change in non-video stream!\n");
1374 return AVIERR_BADFORMAT;
1375 }
1376 This->sInfo.dwFlags |= AVISTREAMINFO_FORMATCHANGES;
1377 This->sInfo.dwFormatChangeCount++;
1378
1379 if (This->idxFmtChanges == NULL || This->sInfo.dwFormatChangeCount < This->nIdxFmtChanges) {
1380 UINT n = This->sInfo.dwFormatChangeCount;
1381
1382 This->nIdxFmtChanges += 16;
1383 This->idxFmtChanges = GlobalReAllocPtr(This->idxFmtChanges, This->nIdxFmtChanges * sizeof(AVIINDEXENTRY), GHND);
1384 if (This->idxFmtChanges == NULL)
1385 return AVIERR_MEMORY;
1386
1387 This->idxFmtChanges[n].ckid = This->lLastFrame;
1388 This->idxFmtChanges[n].dwFlags = 0;
1389 This->idxFmtChanges[n].dwChunkOffset = offset;
1390 This->idxFmtChanges[n].dwChunkLength = size;
1391
1392 return AVIERR_OK;
1393 }
1394 break;
1395 case cktypeWAVEbytes:
1396 if (This->paf->fInfo.dwFlags & AVIFILEINFO_TRUSTCKTYPE)
1397 flags |= AVIIF_KEYFRAME;
1398 break;
1399 default:
1400 WARN(": unknown TWOCC 0x%04X found\n", TWOCCFromFOURCC(ckid));
1401 break;
1402 };
1403
1404 /* first frame is alwasy a keyframe */
1405 if (This->lLastFrame == -1)
1406 flags |= AVIIF_KEYFRAME;
1407
1408 if (This->sInfo.dwSuggestedBufferSize < size)
1409 This->sInfo.dwSuggestedBufferSize = size;
1410
1411 /* get memory for index */
1412 if (This->idxFrames == NULL || This->lLastFrame + 1 >= This->nIdxFrames) {
1413 This->nIdxFrames += 512;
1414 This->idxFrames = GlobalReAllocPtr(This->idxFrames, This->nIdxFrames * sizeof(AVIINDEXENTRY), GHND);
1415 if (This->idxFrames == NULL)
1416 return AVIERR_MEMORY;
1417 }
1418
1419 This->lLastFrame++;
1420 This->idxFrames[This->lLastFrame].ckid = ckid;
1421 This->idxFrames[This->lLastFrame].dwFlags = flags;
1422 This->idxFrames[This->lLastFrame].dwChunkOffset = offset;
1423 This->idxFrames[This->lLastFrame].dwChunkLength = size;
1424
1425 /* update AVISTREAMINFO structure if necessary */
1426 if (This->sInfo.dwLength <= This->lLastFrame)
1427 This->sInfo.dwLength = This->lLastFrame + 1;
1428
1429 return AVIERR_OK;
1430 }
1431
1432 static HRESULT AVIFILE_AddRecord(IAVIFileImpl *This)
1433 {
1434 /* pre-conditions */
1435 assert(This != NULL && This->ppStreams[0] != NULL);
1436
1437 if (This->idxRecords == NULL || This->cbIdxRecords == 0) {
1438 This->cbIdxRecords += 1024 * sizeof(AVIINDEXENTRY);
1439 This->idxRecords = GlobalAllocPtr(GHND, This->cbIdxRecords);
1440 if (This->idxRecords == NULL)
1441 return AVIERR_MEMORY;
1442 }
1443
1444 assert(This->nIdxRecords < This->cbIdxRecords/sizeof(AVIINDEXENTRY));
1445
1446 This->idxRecords[This->nIdxRecords].ckid = listtypeAVIRECORD;
1447 This->idxRecords[This->nIdxRecords].dwFlags = AVIIF_LIST;
1448 This->idxRecords[This->nIdxRecords].dwChunkOffset =
1449 This->ckLastRecord.dwDataOffset - 2 * sizeof(DWORD);
1450 This->idxRecords[This->nIdxRecords].dwChunkLength =
1451 This->ckLastRecord.cksize;
1452 This->nIdxRecords++;
1453
1454 return AVIERR_OK;
1455 }
1456
1457 static DWORD AVIFILE_ComputeMoviStart(IAVIFileImpl *This)
1458 {
1459 DWORD dwPos;
1460 DWORD nStream;
1461
1462 /* RIFF,hdrl,movi,avih => (3 * 3 + 2) * sizeof(DWORD) = 11 * sizeof(DWORD) */
1463 dwPos = 11 * sizeof(DWORD) + sizeof(MainAVIHeader);
1464
1465 for (nStream = 0; nStream < This->fInfo.dwStreams; nStream++) {
1466 IAVIStreamImpl *pStream = This->ppStreams[nStream];
1467
1468 /* strl,strh,strf => (3 + 2 * 2) * sizeof(DWORD) = 7 * sizeof(DWORD) */
1469 dwPos += 7 * sizeof(DWORD) + sizeof(AVIStreamHeader);
1470 dwPos += ((pStream->cbFormat + 1) & ~1U);
1471 if (pStream->lpHandlerData != NULL && pStream->cbHandlerData > 0)
1472 dwPos += 2 * sizeof(DWORD) + ((pStream->cbHandlerData + 1) & ~1U);
1473 if (lstrlenW(pStream->sInfo.szName) > 0)
1474 dwPos += 2 * sizeof(DWORD) + ((lstrlenW(pStream->sInfo.szName) + 1) & ~1U);
1475 }
1476
1477 if (This->dwMoviChunkPos == 0) {
1478 This->dwNextFramePos = dwPos;
1479
1480 /* pad to multiple of AVI_HEADERSIZE only if we are more than 8 bytes away from it */
1481 if (((dwPos + AVI_HEADERSIZE) & ~(AVI_HEADERSIZE - 1)) - dwPos > 2 * sizeof(DWORD))
1482 This->dwNextFramePos = (dwPos + AVI_HEADERSIZE) & ~(AVI_HEADERSIZE - 1);
1483
1484 This->dwMoviChunkPos = This->dwNextFramePos - sizeof(DWORD);
1485 }
1486
1487 return dwPos;
1488 }
1489
1490 static void AVIFILE_ConstructAVIStream(IAVIFileImpl *paf, DWORD nr, LPAVISTREAMINFOW asi)
1491 {
1492 IAVIStreamImpl *pstream;
1493
1494 /* pre-conditions */
1495 assert(paf != NULL);
1496 assert(nr < MAX_AVISTREAMS);
1497 assert(paf->ppStreams[nr] != NULL);
1498
1499 pstream = paf->ppStreams[nr];
1500
1501 pstream->lpVtbl = &iavist;
1502 pstream->ref = 0;
1503 pstream->paf = paf;
1504 pstream->nStream = nr;
1505 pstream->dwCurrentFrame = (DWORD)-1;
1506 pstream->lLastFrame = -1;
1507
1508 if (asi != NULL) {
1509 memcpy(&pstream->sInfo, asi, sizeof(pstream->sInfo));
1510
1511 if (asi->dwLength > 0) {
1512 /* pre-allocate mem for frame-index structure */
1513 pstream->idxFrames =
1514 (AVIINDEXENTRY*)GlobalAllocPtr(GHND, asi->dwLength * sizeof(AVIINDEXENTRY));
1515 if (pstream->idxFrames != NULL)
1516 pstream->nIdxFrames = asi->dwLength;
1517 }
1518 if (asi->dwFormatChangeCount > 0) {
1519 /* pre-allocate mem for formatchange-index structure */
1520 pstream->idxFmtChanges =
1521 (AVIINDEXENTRY*)GlobalAllocPtr(GHND, asi->dwFormatChangeCount * sizeof(AVIINDEXENTRY));
1522 if (pstream->idxFmtChanges != NULL)
1523 pstream->nIdxFmtChanges = asi->dwFormatChangeCount;
1524 }
1525
1526 /* These values will be computed */
1527 pstream->sInfo.dwLength = 0;
1528 pstream->sInfo.dwSuggestedBufferSize = 0;
1529 pstream->sInfo.dwFormatChangeCount = 0;
1530 pstream->sInfo.dwEditCount = 1;
1531 if (pstream->sInfo.dwSampleSize > 0)
1532 SetRectEmpty(&pstream->sInfo.rcFrame);
1533 }
1534
1535 pstream->sInfo.dwCaps = AVIFILECAPS_CANREAD|AVIFILECAPS_CANWRITE;
1536 }
1537
1538 static void AVIFILE_DestructAVIStream(IAVIStreamImpl *This)
1539 {
1540 /* pre-conditions */
1541 assert(This != NULL);
1542
1543 This->dwCurrentFrame = (DWORD)-1;
1544 This->lLastFrame = -1;
1545 This->paf = NULL;
1546 if (This->idxFrames != NULL) {
1547 GlobalFreePtr(This->idxFrames);
1548 This->idxFrames = NULL;
1549 This->nIdxFrames = 0;
1550 }
1551 if (This->idxFmtChanges != NULL) {
1552 GlobalFreePtr(This->idxFmtChanges);
1553 This->idxFmtChanges = NULL;
1554 }
1555 if (This->lpBuffer != NULL) {
1556 GlobalFreePtr(This->lpBuffer);
1557 This->lpBuffer = NULL;
1558 This->cbBuffer = 0;
1559 }
1560 if (This->lpHandlerData != NULL) {
1561 GlobalFreePtr(This->lpHandlerData);
1562 This->lpHandlerData = NULL;
1563 This->cbHandlerData = 0;
1564 }
1565 if (This->extra.lp != NULL) {
1566 GlobalFreePtr(This->extra.lp);
1567 This->extra.lp = NULL;
1568 This->extra.cb = 0;
1569 }
1570 if (This->lpFormat != NULL) {
1571 GlobalFreePtr(This->lpFormat);
1572 This->lpFormat = NULL;
1573 This->cbFormat = 0;
1574 }
1575 }
1576
1577 static HRESULT AVIFILE_LoadFile(IAVIFileImpl *This)
1578 {
1579 MainAVIHeader MainAVIHdr;
1580 MMCKINFO ckRIFF;
1581 MMCKINFO ckLIST1;
1582 MMCKINFO ckLIST2;
1583 MMCKINFO ck;
1584 IAVIStreamImpl *pStream;
1585 DWORD nStream;
1586 HRESULT hr;
1587
1588 if (This->hmmio == NULL)
1589 return AVIERR_FILEOPEN;
1590
1591 /* initialize stream ptr's */
1592 memset(This->ppStreams, 0, sizeof(This->ppStreams));
1593
1594 /* try to get "RIFF" chunk -- must not be at beginning of file! */
1595 ckRIFF.fccType = formtypeAVI;
1596 if (mmioDescend(This->hmmio, &ckRIFF, NULL, MMIO_FINDRIFF) != S_OK) {
1597 ERR(": not an AVI!\n");
1598 return AVIERR_FILEREAD;
1599 }
1600
1601 /* get "LIST" "hdrl" */
1602 ckLIST1.fccType = listtypeAVIHEADER;
1603 hr = FindChunkAndKeepExtras(&This->fileextra, This->hmmio, &ckLIST1, &ckRIFF, MMIO_FINDLIST);
1604 if (FAILED(hr))
1605 return hr;
1606
1607 /* get "avih" chunk */
1608 ck.ckid = ckidAVIMAINHDR;
1609 hr = FindChunkAndKeepExtras(&This->fileextra, This->hmmio, &ck, &ckLIST1, MMIO_FINDCHUNK);
1610 if (FAILED(hr))
1611 return hr;
1612
1613 if (ck.cksize != sizeof(MainAVIHdr)) {
1614 ERR(": invalid size of %ld for MainAVIHeader!\n", ck.cksize);
1615 return AVIERR_BADFORMAT;
1616 }
1617 if (mmioRead(This->hmmio, (HPSTR)&MainAVIHdr, ck.cksize) != ck.cksize)
1618 return AVIERR_FILEREAD;
1619
1620 /* check for MAX_AVISTREAMS limit */
1621 if (MainAVIHdr.dwStreams > MAX_AVISTREAMS) {
1622 WARN("file contains %lu streams, but only supports %d -- change MAX_AVISTREAMS!\n", MainAVIHdr.dwStreams, MAX_AVISTREAMS);
1623 return AVIERR_UNSUPPORTED;
1624 }
1625
1626 /* adjust permissions if copyrighted material in file */
1627 if (MainAVIHdr.dwFlags & AVIFILEINFO_COPYRIGHTED) {
1628 This->uMode &= ~MMIO_RWMODE;
1629 This->uMode |= MMIO_READ;
1630 }
1631
1632 /* convert MainAVIHeader into AVIFILINFOW */
1633 memset(&This->fInfo, 0, sizeof(This->fInfo));
1634 This->fInfo.dwRate = MainAVIHdr.dwMicroSecPerFrame;
1635 This->fInfo.dwScale = 1000000;
1636 This->fInfo.dwMaxBytesPerSec = MainAVIHdr.dwMaxBytesPerSec;
1637 This->fInfo.dwFlags = MainAVIHdr.dwFlags;
1638 This->fInfo.dwCaps = AVIFILECAPS_CANREAD|AVIFILECAPS_CANWRITE;
1639 This->fInfo.dwLength = MainAVIHdr.dwTotalFrames;
1640 This->fInfo.dwStreams = MainAVIHdr.dwStreams;
1641 This->fInfo.dwSuggestedBufferSize = MainAVIHdr.dwSuggestedBufferSize;
1642 This->fInfo.dwWidth = MainAVIHdr.dwWidth;
1643 This->fInfo.dwHeight = MainAVIHdr.dwHeight;
1644 LoadStringW(AVIFILE_hModule, IDS_AVIFILETYPE, This->fInfo.szFileType,
1645 sizeof(This->fInfo.szFileType));
1646
1647 /* go back to into header list */
1648 if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
1649 return AVIERR_FILEREAD;
1650
1651 /* foreach stream exists a "LIST","strl" chunk */
1652 for (nStream = 0; nStream < This->fInfo.dwStreams; nStream++) {
1653 /* get next nested chunk in this "LIST","strl" */
1654 if (mmioDescend(This->hmmio, &ckLIST2, &ckLIST1, 0) != S_OK)
1655 return AVIERR_FILEREAD;
1656
1657 /* nested chunk must be of type "LIST","strl" -- when not normally JUNK */
1658 if (ckLIST2.ckid == FOURCC_LIST &&
1659 ckLIST2.fccType == listtypeSTREAMHEADER) {
1660 pStream = This->ppStreams[nStream] =
1661 (IAVIStreamImpl*)LocalAlloc(LPTR, sizeof(IAVIStreamImpl));
1662 if (pStream == NULL)
1663 return AVIERR_MEMORY;
1664 AVIFILE_ConstructAVIStream(This, nStream, NULL);
1665
1666 ck.ckid = 0;
1667 while (mmioDescend(This->hmmio, &ck, &ckLIST2, 0) == S_OK) {
1668 switch (ck.ckid) {
1669 case ckidSTREAMHANDLERDATA:
1670 if (pStream->lpHandlerData != NULL)
1671 return AVIERR_BADFORMAT;
1672 pStream->lpHandlerData = GlobalAllocPtr(GMEM_DDESHARE|GMEM_MOVEABLE,
1673 ck.cksize);
1674 if (pStream->lpHandlerData == NULL)
1675 return AVIERR_MEMORY;
1676 pStream->cbHandlerData = ck.cksize;
1677
1678 if (mmioRead(This->hmmio, (HPSTR)pStream->lpHandlerData, ck.cksize) != ck.cksize)
1679 return AVIERR_FILEREAD;
1680 break;
1681 case ckidSTREAMFORMAT:
1682 if (pStream->lpFormat != NULL)
1683 return AVIERR_BADFORMAT;
1684 if (ck.cksize == 0)
1685 break;
1686
1687 pStream->lpFormat = GlobalAllocPtr(GMEM_DDESHARE|GMEM_MOVEABLE,
1688 ck.cksize);
1689 if (pStream->lpFormat == NULL)
1690 return AVIERR_MEMORY;
1691 pStream->cbFormat = ck.cksize;
1692
1693 if (mmioRead(This->hmmio, (HPSTR)pStream->lpFormat, ck.cksize) != ck.cksize)
1694 return AVIERR_FILEREAD;
1695
1696 if (pStream->sInfo.fccType == streamtypeVIDEO) {
1697 LPBITMAPINFOHEADER lpbi = (LPBITMAPINFOHEADER)pStream->lpFormat;
1698
1699 /* some corrections to the video format */
1700 if (lpbi->biClrUsed == 0 && lpbi->biBitCount <= 8)
1701 lpbi->biClrUsed = 1u << lpbi->biBitCount;
1702 if (lpbi->biCompression == BI_RGB && lpbi->biSizeImage == 0)
1703 lpbi->biSizeImage = DIBWIDTHBYTES(*lpbi) * lpbi->biHeight;
1704 if (lpbi->biCompression != BI_RGB && lpbi->biBitCount == 8) {
1705 if (pStream->sInfo.fccHandler == mmioFOURCC('R','L','E','0') ||
1706 pStream->sInfo.fccHandler == mmioFOURCC('R','L','E',' '))
1707 lpbi->biCompression = BI_RLE8;
1708 }
1709 if (lpbi->biCompression == BI_RGB &&
1710 (pStream->sInfo.fccHandler == 0 ||
1711 pStream->sInfo.fccHandler == mmioFOURCC('N','O','N','E')))
1712 pStream->sInfo.fccHandler = comptypeDIB;
1713
1714 /* init rcFrame if it's empty */
1715 if (IsRectEmpty(&pStream->sInfo.rcFrame))
1716 SetRect(&pStream->sInfo.rcFrame, 0, 0, lpbi->biWidth, lpbi->biHeight);
1717 }
1718 break;
1719 case ckidSTREAMHEADER:
1720 {
1721 static const WCHAR streamTypeFmt[] = {'%','4','.','4','h','s',0};
1722
1723 AVIStreamHeader streamHdr;
1724 WCHAR szType[25];
1725 WCHAR streamNameFmt[25];
1726 UINT count;
1727 LONG n = ck.cksize;
1728
1729 if (ck.cksize > sizeof(streamHdr))
1730 n = sizeof(streamHdr);
1731
1732 if (mmioRead(This->hmmio, (HPSTR)&streamHdr, n) != n)
1733 return AVIERR_FILEREAD;
1734
1735 pStream->sInfo.fccType = streamHdr.fccType;
1736 pStream->sInfo.fccHandler = streamHdr.fccHandler;
1737 pStream->sInfo.dwFlags = streamHdr.dwFlags;
1738 pStream->sInfo.wPriority = streamHdr.wPriority;
1739 pStream->sInfo.wLanguage = streamHdr.wLanguage;
1740 pStream->sInfo.dwInitialFrames = streamHdr.dwInitialFrames;
1741 pStream->sInfo.dwScale = streamHdr.dwScale;
1742 pStream->sInfo.dwRate = streamHdr.dwRate;
1743 pStream->sInfo.dwStart = streamHdr.dwStart;
1744 pStream->sInfo.dwLength = streamHdr.dwLength;
1745 pStream->sInfo.dwSuggestedBufferSize =
1746 streamHdr.dwSuggestedBufferSize;
1747 pStream->sInfo.dwQuality = streamHdr.dwQuality;
1748 pStream->sInfo.dwSampleSize = streamHdr.dwSampleSize;
1749 pStream->sInfo.rcFrame.left = streamHdr.rcFrame.left;
1750 pStream->sInfo.rcFrame.top = streamHdr.rcFrame.top;
1751 pStream->sInfo.rcFrame.right = streamHdr.rcFrame.right;
1752 pStream->sInfo.rcFrame.bottom = streamHdr.rcFrame.bottom;
1753 pStream->sInfo.dwEditCount = 0;
1754 pStream->sInfo.dwFormatChangeCount = 0;
1755
1756 /* generate description for stream like "filename.avi Type #n" */
1757 if (streamHdr.fccType == streamtypeVIDEO)
1758 LoadStringW(AVIFILE_hModule, IDS_VIDEO, szType, sizeof(szType));
1759 else if (streamHdr.fccType == streamtypeAUDIO)
1760 LoadStringW(AVIFILE_hModule, IDS_AUDIO, szType, sizeof(szType));
1761 else
1762 wsprintfW(szType, streamTypeFmt, (char*)&streamHdr.fccType);
1763
1764 /* get count of this streamtype up to this stream */
1765 count = 0;
1766 for (n = nStream; 0 <= n; n--) {
1767 if (This->ppStreams[n]->sInfo.fccHandler == streamHdr.fccType)
1768 count++;
1769 }
1770
1771 memset(pStream->sInfo.szName, 0, sizeof(pStream->sInfo.szName));
1772
1773 LoadStringW(AVIFILE_hModule, IDS_AVISTREAMFORMAT, streamNameFmt, sizeof(streamNameFmt));
1774
1775 /* FIXME: avoid overflow -- better use wsnprintfW, which doesn't exists ! */
1776 wsprintfW(pStream->sInfo.szName, streamNameFmt,
1777 AVIFILE_BasenameW(This->szFileName), szType, count);
1778 }
1779 break;
1780 case ckidSTREAMNAME:
1781 { /* streamname will be saved as ASCII string */
1782 LPSTR str = (LPSTR)LocalAlloc(LMEM_FIXED, ck.cksize);
1783 if (str == NULL)
1784 return AVIERR_MEMORY;
1785
1786 if (mmioRead(This->hmmio, (HPSTR)str, ck.cksize) != ck.cksize)
1787 return AVIERR_FILEREAD;
1788
1789 MultiByteToWideChar(CP_ACP, 0, str, -1, pStream->sInfo.szName,
1790 sizeof(pStream->sInfo.szName)/sizeof(pStream->sInfo.szName[0]));
1791
1792 LocalFree((HLOCAL)str);
1793 }
1794 break;
1795 case ckidAVIPADDING:
1796 case mmioFOURCC('p','a','d','d'):
1797 break;
1798 default:
1799 WARN(": found extra chunk 0x%08lX\n", ck.ckid);
1800 hr = ReadChunkIntoExtra(&pStream->extra, This->hmmio, &ck);
1801 if (FAILED(hr))
1802 return hr;
1803 };
1804
1805 if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
1806 return AVIERR_FILEREAD;
1807 }
1808 } else {
1809 /* nested chunks in "LIST","hdrl" which are not of type "LIST","strl" */
1810 hr = ReadChunkIntoExtra(&This->fileextra, This->hmmio, &ckLIST2);
1811 if (FAILED(hr))
1812 return hr;
1813 }
1814 if (mmioAscend(This->hmmio, &ckLIST2, 0) != S_OK)
1815 return AVIERR_FILEREAD;
1816 }
1817
1818 /* read any extra headers in "LIST","hdrl" */
1819 FindChunkAndKeepExtras(&This->fileextra, This->hmmio, &ck, &ckLIST1, 0);
1820 if (mmioAscend(This->hmmio, &ckLIST1, 0) != S_OK)
1821 return AVIERR_FILEREAD;
1822
1823 /* search "LIST","movi" chunk in "RIFF","AVI " */
1824 ckLIST1.fccType = listtypeAVIMOVIE;
1825 hr = FindChunkAndKeepExtras(&This->fileextra, This->hmmio, &ckLIST1, &ckRIFF,
1826 MMIO_FINDLIST);
1827 if (FAILED(hr))
1828 return hr;
1829
1830 This->dwMoviChunkPos = ckLIST1.dwDataOffset;
1831 This->dwIdxChunkPos = ckLIST1.cksize + ckLIST1.dwDataOffset;
1832 if (mmioAscend(This->hmmio, &ckLIST1, 0) != S_OK)
1833 return AVIERR_FILEREAD;
1834
1835 /* try to find an index */
1836 ck.ckid = ckidAVINEWINDEX;
1837 hr = FindChunkAndKeepExtras(&This->fileextra, This->hmmio,
1838 &ck, &ckRIFF, MMIO_FINDCHUNK);
1839 if (SUCCEEDED(hr) && ck.cksize > 0) {
1840 if (FAILED(AVIFILE_LoadIndex(This, ck.cksize, ckLIST1.dwDataOffset)))
1841 This->fInfo.dwFlags &= ~AVIFILEINFO_HASINDEX;
1842 }
1843
1844 /* when we haven't found an index or it's bad, then build one
1845 * by parsing 'movi' chunk */
1846 if ((This->fInfo.dwFlags & AVIFILEINFO_HASINDEX) == 0) {
1847 for (nStream = 0; nStream < This->fInfo.dwStreams; nStream++)
1848 This->ppStreams[nStream]->lLastFrame = -1;
1849
1850 if (mmioSeek(This->hmmio, ckLIST1.dwDataOffset + sizeof(DWORD), SEEK_SET) == -1) {
1851 ERR(": Oops, can't seek back to 'movi' chunk!\n");
1852 return AVIERR_FILEREAD;
1853 }
1854
1855 /* seek through the 'movi' list until end */
1856 while (mmioDescend(This->hmmio, &ck, &ckLIST1, 0) == S_OK) {
1857 if (ck.ckid != FOURCC_LIST) {
1858 if (mmioAscend(This->hmmio, &ck, 0) == S_OK) {
1859 nStream = StreamFromFOURCC(ck.ckid);
1860
1861 if (nStream > This->fInfo.dwStreams)
1862 return AVIERR_BADFORMAT;
1863
1864 AVIFILE_AddFrame(This->ppStreams[nStream], ck.ckid, ck.cksize,
1865 ck.dwDataOffset - 2 * sizeof(DWORD), 0);
1866 } else {
1867 nStream = StreamFromFOURCC(ck.ckid);
1868 WARN(": file seems to be truncated!\n");
1869 if (nStream <= This->fInfo.dwStreams &&
1870 This->ppStreams[nStream]->sInfo.dwSampleSize > 0) {
1871 ck.cksize = mmioSeek(This->hmmio, 0, SEEK_END);
1872 if (ck.cksize != -1) {
1873 ck.cksize -= ck.dwDataOffset;
1874 ck.cksize &= ~(This->ppStreams[nStream]->sInfo.dwSampleSize - 1);
1875
1876 AVIFILE_AddFrame(This->ppStreams[nStream], ck.ckid, ck.cksize,
1877 ck.dwDataOffset - 2 * sizeof(DWORD), 0);
1878 }
1879 }
1880 }
1881 }
1882 }
1883 }
1884
1885 /* find other chunks */
1886 FindChunkAndKeepExtras(&This->fileextra, This->hmmio, &ck, &ckRIFF, 0);
1887
1888 return AVIERR_OK;
1889 }
1890
1891 static HRESULT AVIFILE_LoadIndex(IAVIFileImpl *This, DWORD size, DWORD offset)
1892 {
1893 AVIINDEXENTRY *lp;
1894 DWORD pos, n;
1895 HRESULT hr = AVIERR_OK;
1896 BOOL bAbsolute = TRUE;
1897
1898 lp = (AVIINDEXENTRY*)GlobalAllocPtr(GMEM_MOVEABLE,
1899 IDX_PER_BLOCK * sizeof(AVIINDEXENTRY));
1900 if (lp == NULL)
1901 return AVIERR_MEMORY;
1902
1903 /* adjust limits for index tables, so that inserting will be faster */
1904 for (n = 0; n < This->fInfo.dwStreams; n++) {
1905 IAVIStreamImpl *pStream = This->ppStreams[n];
1906
1907 pStream->lLastFrame = -1;
1908
1909 if (pStream->idxFrames != NULL) {
1910 GlobalFreePtr(pStream->idxFrames);
1911 pStream->idxFrames = NULL;
1912 pStream->nIdxFrames = 0;
1913 }
1914
1915 if (pStream->sInfo.dwSampleSize != 0) {
1916 if (n > 0 && This->fInfo.dwFlags & AVIFILEINFO_ISINTERLEAVED) {
1917 pStream->nIdxFrames = This->ppStreams[0]->nIdxFrames;
1918 } else if (pStream->sInfo.dwSuggestedBufferSize) {
1919 pStream->nIdxFrames =
1920 pStream->sInfo.dwLength / pStream->sInfo.dwSuggestedBufferSize;
1921 }
1922 } else
1923 pStream->nIdxFrames = pStream->sInfo.dwLength;
1924
1925 pStream->idxFrames =
1926 (AVIINDEXENTRY*)GlobalAllocPtr(GHND, pStream->nIdxFrames * sizeof(AVIINDEXENTRY));
1927 if (pStream->idxFrames == NULL && pStream->nIdxFrames > 0) {
1928 pStream->nIdxFrames = 0;
1929 return AVIERR_MEMORY;
1930 }
1931 }
1932
1933 pos = (DWORD)-1;
1934 while (size != 0) {
1935 LONG read = min(IDX_PER_BLOCK * sizeof(AVIINDEXENTRY), size);
1936
1937 if (mmioRead(This->hmmio, (HPSTR)lp, read) != read) {
1938 hr = AVIERR_FILEREAD;
1939 break;
1940 }
1941 size -= read;
1942
1943 if (pos == (DWORD)-1)
1944 pos = offset - lp->dwChunkOffset + sizeof(DWORD);
1945
1946 AVIFILE_ParseIndex(This, lp, read / sizeof(AVIINDEXENTRY),
1947 pos, &bAbsolute);
1948 }
1949
1950 if (lp != NULL)
1951 GlobalFreePtr(lp);
1952
1953 /* checking ... */
1954 for (n = 0; n < This->fInfo.dwStreams; n++) {
1955 IAVIStreamImpl *pStream = This->ppStreams[n];
1956
1957 if (pStream->sInfo.dwSampleSize == 0 &&
1958 pStream->sInfo.dwLength != pStream->lLastFrame+1)
1959 ERR("stream %lu length mismatch: dwLength=%lu found=%ld\n",
1960 n, pStream->sInfo.dwLength, pStream->lLastFrame);
1961 }
1962
1963 return hr;
1964 }
1965
1966 static HRESULT AVIFILE_ParseIndex(IAVIFileImpl *This, AVIINDEXENTRY *lp,
1967 LONG count, DWORD pos, BOOL *bAbsolute)
1968 {
1969 if (lp == NULL)
1970 return AVIERR_BADPARAM;
1971
1972 for (; count > 0; count--, lp++) {
1973 WORD nStream = StreamFromFOURCC(lp->ckid);
1974
1975 if (lp->ckid == listtypeAVIRECORD || nStream == 0x7F)
1976 continue; /* skip these */
1977
1978 if (nStream > This->fInfo.dwStreams)
1979 return AVIERR_BADFORMAT;
1980
1981 if (*bAbsolute == TRUE && lp->dwChunkOffset < This->dwMoviChunkPos)
1982 *bAbsolute = FALSE;
1983
1984 if (*bAbsolute)
1985 lp->dwChunkOffset += sizeof(DWORD);
1986 else
1987 lp->dwChunkOffset += pos;
1988
1989 if (FAILED(AVIFILE_AddFrame(This->ppStreams[nStream], lp->ckid, lp->dwChunkLength, lp->dwChunkOffset, lp->dwFlags)))
1990 return AVIERR_MEMORY;
1991 }
1992
1993 return AVIERR_OK;
1994 }
1995
1996 static HRESULT AVIFILE_ReadBlock(IAVIStreamImpl *This, DWORD pos,
1997 LPVOID buffer, LONG size)
1998 {
1999 /* pre-conditions */
2000 assert(This != NULL);
2001 assert(This->paf != NULL);
2002 assert(This->paf->hmmio != NULL);
2003 assert(This->sInfo.dwStart <= pos && pos < This->sInfo.dwLength);
2004 assert(pos <= This->lLastFrame);
2005
2006 /* should we read as much as block gives us? */
2007 if (size == 0 || size > This->idxFrames[pos].dwChunkLength)
2008 size = This->idxFrames[pos].dwChunkLength;
2009
2010 /* read into out own buffer or given one? */
2011 if (buffer == NULL) {
2012 /* we also read the chunk */
2013 size += 2 * sizeof(DWORD);
2014
2015 /* check that buffer is big enough -- don't trust dwSuggestedBufferSize */
2016 if (This->lpBuffer == NULL || size < This->cbBuffer) {
2017 This->lpBuffer =
2018 (LPDWORD)GlobalReAllocPtr(This->lpBuffer, max(size, This->sInfo.dwSuggestedBufferSize), GMEM_MOVEABLE);
2019 if (This->lpBuffer == NULL)
2020 return AVIERR_MEMORY;
2021 This->cbBuffer = max(size, This->sInfo.dwSuggestedBufferSize);
2022 }
2023
2024 /* now read the complete chunk into our buffer */
2025 if (mmioSeek(This->paf->hmmio, This->idxFrames[pos].dwChunkOffset, SEEK_SET) == -1)
2026 return AVIERR_FILEREAD;
2027 if (mmioRead(This->paf->hmmio, (HPSTR)This->lpBuffer, size) != size)
2028 return AVIERR_FILEREAD;
2029
2030 /* check if it was the correct block which we have read */
2031 if (This->lpBuffer[0] != This->idxFrames[pos].ckid ||
2032 This->lpBuffer[1] != This->idxFrames[pos].dwChunkLength) {
2033 ERR(": block %ld not found at 0x%08lX\n", pos, This->idxFrames[pos].dwChunkOffset);
2034 ERR(": Index says: '%4.4s'(0x%08lX) size 0x%08lX\n",
2035 (char*)&This->idxFrames[pos].ckid, This->idxFrames[pos].ckid,
2036 This->idxFrames[pos].dwChunkLength);
2037 ERR(": Data says: '%4.4s'(0x%08lX) size 0x%08lX\n",
2038 (char*)&This->lpBuffer[0], This->lpBuffer[0], This->lpBuffer[1]);
2039 return AVIERR_FILEREAD;
2040 }
2041 } else {
2042 if (mmioSeek(This->paf->hmmio, This->idxFrames[pos].dwChunkOffset + 2 * sizeof(DWORD), SEEK_SET) == -1)
2043 return AVIERR_FILEREAD;
2044 if (mmioRead(This->paf->hmmio, (HPSTR)buffer, size) != size)
2045 return AVIERR_FILEREAD;
2046 }
2047
2048 return AVIERR_OK;
2049 }
2050
2051 static void AVIFILE_SamplesToBlock(IAVIStreamImpl *This, LPLONG pos,
2052 LPLONG offset)
2053 {
2054 DWORD block;
2055
2056 /* pre-conditions */
2057 assert(This != NULL);
2058 assert(pos != NULL);
2059 assert(offset != NULL);
2060 assert(This->sInfo.dwSampleSize != 0);
2061 assert(*pos >= This->sInfo.dwStart);
2062
2063 /* convert start sample to start bytes */
2064 (*offset) = (*pos) - This->sInfo.dwStart;
2065 (*offset) *= This->sInfo.dwSampleSize;
2066
2067 /* convert bytes to block number */
2068 for (block = 0; block <= This->lLastFrame; block++) {
2069 if (This->idxFrames[block].dwChunkLength <= *offset)
2070 (*offset) -= This->idxFrames[block].dwChunkLength;
2071 else
2072 break;
2073 }
2074
2075 *pos = block;
2076 }
2077
2078 static HRESULT AVIFILE_SaveFile(IAVIFileImpl *This)
2079 {
2080 MainAVIHeader MainAVIHdr;
2081 IAVIStreamImpl* pStream;
2082 MMCKINFO ckRIFF;
2083 MMCKINFO ckLIST1;
2084 MMCKINFO ckLIST2;
2085 MMCKINFO ck;
2086 DWORD nStream;
2087 DWORD dwPos;
2088 HRESULT hr;
2089
2090 /* initialize some things */
2091 if (This->dwMoviChunkPos == 0)
2092 AVIFILE_ComputeMoviStart(This);
2093
2094 /* written one record to much? */
2095 if (This->ckLastRecord.dwFlags & MMIO_DIRTY) {
2096 This->dwNextFramePos -= 3 * sizeof(DWORD);
2097 if (This->nIdxRecords > 0)
2098 This->nIdxRecords--;
2099 }
2100
2101 AVIFILE_UpdateInfo(This);
2102
2103 assert(This->fInfo.dwScale != 0);
2104
2105 memset(&MainAVIHdr, 0, sizeof(MainAVIHdr));
2106 MainAVIHdr.dwMicroSecPerFrame = MulDiv(This->fInfo.dwRate, 1000000,
2107 This->fInfo.dwScale);
2108 MainAVIHdr.dwMaxBytesPerSec = This->fInfo.dwMaxBytesPerSec;
2109 MainAVIHdr.dwPaddingGranularity = AVI_HEADERSIZE;
2110 MainAVIHdr.dwFlags = This->fInfo.dwFlags;
2111 MainAVIHdr.dwTotalFrames = This->fInfo.dwLength;
2112 MainAVIHdr.dwInitialFrames = 0;
2113 MainAVIHdr.dwStreams = This->fInfo.dwStreams;
2114 MainAVIHdr.dwSuggestedBufferSize = This->fInfo.dwSuggestedBufferSize;
2115 MainAVIHdr.dwWidth = This->fInfo.dwWidth;
2116 MainAVIHdr.dwHeight = This->fInfo.dwHeight;
2117 MainAVIHdr.dwInitialFrames = This->dwInitialFrames;
2118
2119 /* now begin writing ... */
2120 mmioSeek(This->hmmio, 0, SEEK_SET);
2121
2122 /* RIFF chunk */
2123 ckRIFF.cksize = 0;
2124 ckRIFF.fccType = formtypeAVI;
2125 if (mmioCreateChunk(This->hmmio, &ckRIFF, MMIO_CREATERIFF) != S_OK)
2126 return AVIERR_FILEWRITE;
2127
2128 /* AVI headerlist */
2129 ckLIST1.cksize = 0;
2130 ckLIST1.fccType = listtypeAVIHEADER;
2131 if (mmioCreateChunk(This->hmmio, &ckLIST1, MMIO_CREATELIST) != S_OK)
2132 return AVIERR_FILEWRITE;
2133
2134 /* MainAVIHeader */
2135 ck.ckid = ckidAVIMAINHDR;
2136 ck.cksize = sizeof(MainAVIHdr);
2137 ck.fccType = 0;
2138 if (mmioCreateChunk(This->hmmio, &ck, 0) != S_OK)
2139 return AVIERR_FILEWRITE;
2140 if (mmioWrite(This->hmmio, (HPSTR)&MainAVIHdr, ck.cksize) != ck.cksize)
2141 return AVIERR_FILEWRITE;
2142 if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
2143 return AVIERR_FILEWRITE;
2144
2145 /* write the headers of each stream into a separate streamheader list */
2146 for (nStream = 0; nStream < This->fInfo.dwStreams; nStream++) {
2147 AVIStreamHeader strHdr;
2148
2149 pStream = This->ppStreams[nStream];
2150
2151 /* begin the new streamheader list */
2152 ckLIST2.cksize = 0;
2153 ckLIST2.fccType = listtypeSTREAMHEADER;
2154 if (mmioCreateChunk(This->hmmio, &ckLIST2, MMIO_CREATELIST) != S_OK)
2155 return AVIERR_FILEWRITE;
2156
2157 /* create an AVIStreamHeader from the AVSTREAMINFO */
2158 strHdr.fccType = pStream->sInfo.fccType;
2159 strHdr.fccHandler = pStream->sInfo.fccHandler;
2160 strHdr.dwFlags = pStream->sInfo.dwFlags;
2161 strHdr.wPriority = pStream->sInfo.wPriority;
2162 strHdr.wLanguage = pStream->sInfo.wLanguage;
2163 strHdr.dwInitialFrames = pStream->sInfo.dwInitialFrames;
2164 strHdr.dwScale = pStream->sInfo.dwScale;
2165 strHdr.dwRate = pStream->sInfo.dwRate;
2166 strHdr.dwStart = pStream->sInfo.dwStart;
2167 strHdr.dwLength = pStream->sInfo.dwLength;
2168 strHdr.dwSuggestedBufferSize = pStream->sInfo.dwSuggestedBufferSize;
2169 strHdr.dwQuality = pStream->sInfo.dwQuality;
2170 strHdr.dwSampleSize = pStream->sInfo.dwSampleSize;
2171 strHdr.rcFrame.left = pStream->sInfo.rcFrame.left;
2172 strHdr.rcFrame.top = pStream->sInfo.rcFrame.top;
2173 strHdr.rcFrame.right = pStream->sInfo.rcFrame.right;
2174 strHdr.rcFrame.bottom = pStream->sInfo.rcFrame.bottom;
2175
2176 /* now write the AVIStreamHeader */
2177 ck.ckid = ckidSTREAMHEADER;
2178 ck.cksize = sizeof(strHdr);
2179 if (mmioCreateChunk(This->hmmio, &ck, 0) != S_OK)
2180 return AVIERR_FILEWRITE;
2181 if (mmioWrite(This->hmmio, (HPSTR)&strHdr, ck.cksize) != ck.cksize)
2182 return AVIERR_FILEWRITE;
2183 if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
2184 return AVIERR_FILEWRITE;
2185
2186 /* ... the hopefully ever present streamformat ... */
2187 ck.ckid = ckidSTREAMFORMAT;
2188 ck.cksize = pStream->cbFormat;
2189 if (mmioCreateChunk(This->hmmio, &ck, 0) != S_OK)
2190 return AVIERR_FILEWRITE;
2191 if (pStream->lpFormat != NULL && ck.cksize > 0) {
2192 if (mmioWrite(This->hmmio, (HPSTR)pStream->lpFormat, ck.cksize) != ck.cksize)
2193 return AVIERR_FILEWRITE;
2194 }
2195 if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
2196 return AVIERR_FILEWRITE;
2197
2198 /* ... some optional existing handler data ... */
2199 if (pStream->lpHandlerData != NULL && pStream->cbHandlerData > 0) {
2200 ck.ckid = ckidSTREAMHANDLERDATA;
2201 ck.cksize = pStream->cbHandlerData;
2202 if (mmioCreateChunk(This->hmmio, &ck, 0) != S_OK)
2203 return AVIERR_FILEWRITE;
2204 if (mmioWrite(This->hmmio, (HPSTR)pStream->lpHandlerData, ck.cksize) != ck.cksize)
2205 return AVIERR_FILEWRITE;
2206 if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
2207 return AVIERR_FILEWRITE;
2208 }
2209
2210 /* ... some optional additional extra chunk for this stream ... */
2211 if (pStream->extra.lp != NULL && pStream->extra.cb > 0) {
2212 /* the chunk header(s) are already in the strucuture */
2213 if (mmioWrite(This->hmmio, (HPSTR)pStream->extra.lp, pStream->extra.cb) != pStream->extra.cb)
2214 return AVIERR_FILEWRITE;
2215 }
2216
2217 /* ... an optional name for this stream ... */
2218 if (lstrlenW(pStream->sInfo.szName) > 0) {
2219 LPSTR str;
2220
2221 ck.ckid = ckidSTREAMNAME;
2222 ck.cksize = lstrlenW(pStream->sInfo.szName) + 1;
2223 if (ck.cksize & 1) /* align */
2224 ck.cksize++;
2225 if (mmioCreateChunk(This->hmmio, &ck, 0) != S_OK)
2226 return AVIERR_FILEWRITE;
2227
2228 /* the streamname must be saved in ASCII not Unicode */
2229 str = (LPSTR)LocalAlloc(LPTR, ck.cksize);
2230 if (str == NULL)
2231 return AVIERR_MEMORY;
2232 WideCharToMultiByte(CP_ACP, 0, pStream->sInfo.szName, -1, str,
2233 ck.cksize, NULL, NULL);
2234
2235 if (mmioWrite(This->hmmio, (HPSTR)str, ck.cksize) != ck.cksize) {
2236 LocalFree((HLOCAL)str);
2237 return AVIERR_FILEWRITE;
2238 }
2239
2240 LocalFree((HLOCAL)str);
2241 if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
2242 return AVIERR_FILEWRITE;
2243 }
2244
2245 /* close streamheader list for this stream */
2246 if (mmioAscend(This->hmmio, &ckLIST2, 0) != S_OK)
2247 return AVIERR_FILEWRITE;
2248 } /* for (0 <= nStream < MainAVIHdr.dwStreams) */
2249
2250 /* close the aviheader list */
2251 if (mmioAscend(This->hmmio, &ckLIST1, 0) != S_OK)
2252 return AVIERR_FILEWRITE;
2253
2254 /* check for padding to pre-guessed 'movi'-chunk position */
2255 dwPos = ckLIST1.dwDataOffset + ckLIST1.cksize;
2256 if (This->dwMoviChunkPos - 2 * sizeof(DWORD) > dwPos) {
2257 ck.ckid = ckidAVIPADDING;
2258 ck.cksize = This->dwMoviChunkPos - dwPos - 4 * sizeof(DWORD);
2259 assert((LONG)ck.cksize >= 0);
2260
2261 if (mmioCreateChunk(This->hmmio, &ck, 0) != S_OK)
2262 return AVIERR_FILEWRITE;
2263 if (mmioSeek(This->hmmio, ck.cksize, SEEK_CUR) == -1)
2264 return AVIERR_FILEWRITE;
2265 if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
2266 return AVIERR_FILEWRITE;
2267 }
2268
2269 /* now write the 'movi' chunk */
2270 mmioSeek(This->hmmio, This->dwMoviChunkPos - 2 * sizeof(DWORD), SEEK_SET);
2271 ckLIST1.cksize = 0;
2272 ckLIST1.fccType = listtypeAVIMOVIE;
2273 if (mmioCreateChunk(This->hmmio, &ckLIST1, MMIO_CREATELIST) != S_OK)
2274 return AVIERR_FILEWRITE;
2275 if (mmioSeek(This->hmmio, This->dwNextFramePos, SEEK_SET) == -1)
2276 return AVIERR_FILEWRITE;
2277 if (mmioAscend(This->hmmio, &ckLIST1, 0) != S_OK)
2278 return AVIERR_FILEWRITE;
2279
2280 /* write 'idx1' chunk */
2281 hr = AVIFILE_SaveIndex(This);
2282 if (FAILED(hr))
2283 return hr;
2284
2285 /* write optional extra file chunks */
2286 if (This->fileextra.lp != NULL && This->fileextra.cb > 0) {
2287 /* as for the streams, are the chunk header(s) in the structure */
2288 if (mmioWrite(This->hmmio, (HPSTR)This->fileextra.lp, This->fileextra.cb) != This->fileextra.cb)
2289 return AVIERR_FILEWRITE;
2290 }
2291
2292 /* close RIFF chunk */
2293 if (mmioAscend(This->hmmio, &ckRIFF, 0) != S_OK)
2294 return AVIERR_FILEWRITE;
2295
2296 /* add some JUNK at end for bad parsers */
2297 memset(&ckRIFF, 0, sizeof(ckRIFF));
2298 mmioWrite(This->hmmio, (HPSTR)&ckRIFF, sizeof(ckRIFF));
2299 mmioFlush(This->hmmio, 0);
2300
2301 return AVIERR_OK;
2302 }
2303
2304 static HRESULT AVIFILE_SaveIndex(IAVIFileImpl *This)
2305 {
2306 IAVIStreamImpl *pStream;
2307 AVIINDEXENTRY idx;
2308 MMCKINFO ck;
2309 DWORD nStream;
2310 LONG n;
2311
2312 ck.ckid = ckidAVINEWINDEX;
2313 ck.cksize = 0;
2314 if (mmioCreateChunk(This->hmmio, &ck, 0) != S_OK)
2315 return AVIERR_FILEWRITE;
2316
2317 if (This->fInfo.dwFlags & AVIFILEINFO_ISINTERLEAVED) {
2318 /* is interleaved -- write block of coresponding frames */
2319 LONG lInitialFrames = 0;
2320 LONG stepsize;
2321 LONG i;
2322
2323 if (This->ppStreams[0]->sInfo.dwSampleSize == 0)
2324 stepsize = 1;
2325 else
2326 stepsize = AVIStreamTimeToSample((PAVISTREAM)This->ppStreams[0], 1000000);
2327
2328 assert(stepsize > 0);
2329
2330 for (nStream = 0; nStream < This->fInfo.dwStreams; nStream++) {
2331 if (lInitialFrames < This->ppStreams[nStream]->sInfo.dwInitialFrames)
2332 lInitialFrames = This->ppStreams[nStream]->sInfo.dwInitialFrames;
2333 }
2334
2335 for (i = -lInitialFrames; i < (LONG)This->fInfo.dwLength - lInitialFrames;
2336 i += stepsize) {
2337 DWORD nFrame = lInitialFrames + i;
2338
2339 assert(nFrame < This->nIdxRecords);
2340
2341 idx.ckid = listtypeAVIRECORD;
2342 idx.dwFlags = AVIIF_LIST;
2343 idx.dwChunkLength = This->idxRecords[nFrame].dwChunkLength;
2344 idx.dwChunkOffset = This->idxRecords[nFrame].dwChunkOffset
2345 - This->dwMoviChunkPos;
2346 if (mmioWrite(This->hmmio, (HPSTR)&idx, sizeof(idx)) != sizeof(idx))
2347 return AVIERR_FILEWRITE;
2348
2349 for (nStream = 0; nStream < This->fInfo.dwStreams; nStream++) {
2350 pStream = This->ppStreams[nStream];
2351
2352 /* heave we reached start of this stream? */
2353 if (-(LONG)pStream->sInfo.dwInitialFrames > i)
2354 continue;
2355
2356 if (pStream->sInfo.dwInitialFrames < lInitialFrames)
2357 nFrame -= (lInitialFrames - pStream->sInfo.dwInitialFrames);
2358
2359 /* reached end of this stream? */
2360 if (pStream->lLastFrame <= nFrame)
2361 continue;
2362
2363 if ((pStream->sInfo.dwFlags & AVISTREAMINFO_FORMATCHANGES) &&
2364 pStream->sInfo.dwFormatChangeCount != 0 &&
2365 pStream->idxFmtChanges != NULL) {
2366 DWORD pos;
2367
2368 for (pos = 0; pos < pStream->sInfo.dwFormatChangeCount; pos++) {
2369 if (pStream->idxFmtChanges[pos].ckid == nFrame) {
2370 idx.dwFlags = AVIIF_NOTIME;
2371 idx.ckid = MAKEAVICKID(cktypePALchange, pStream->nStream);
2372 idx.dwChunkLength = pStream->idxFmtChanges[pos].dwChunkLength;
2373 idx.dwChunkOffset = pStream->idxFmtChanges[pos].dwChunkOffset
2374 - This->dwMoviChunkPos;
2375
2376 if (mmioWrite(This->hmmio, (HPSTR)&idx, sizeof(idx)) != sizeof(idx))
2377 return AVIERR_FILEWRITE;
2378 break;
2379 }
2380 }
2381 } /* if have formatchanges */
2382
2383 idx.ckid = pStream->idxFrames[nFrame].ckid;
2384 idx.dwFlags = pStream->idxFrames[nFrame].dwFlags;
2385 idx.dwChunkLength = pStream->idxFrames[nFrame].dwChunkLength;
2386 idx.dwChunkOffset = pStream->idxFrames[nFrame].dwChunkOffset
2387 - This->dwMoviChunkPos;
2388 if (mmioWrite(This->hmmio, (HPSTR)&idx, sizeof(idx)) != sizeof(idx))
2389 return AVIERR_FILEWRITE;
2390 }
2391 }
2392 } else {
2393 /* not interleaved -- write index for each stream at once */
2394 for (nStream = 0; nStream < This->fInfo.dwStreams; nStream++) {
2395 pStream = This->ppStreams[nStream];
2396
2397 for (n = 0; n <= pStream->lLastFrame; n++) {
2398 if ((pStream->sInfo.dwFlags & AVISTREAMINFO_FORMATCHANGES) &&
2399 (pStream->sInfo.dwFormatChangeCount != 0)) {
2400 DWORD pos;
2401
2402 for (pos = 0; pos < pStream->sInfo.dwFormatChangeCount; pos++) {
2403 if (pStream->idxFmtChanges[pos].ckid == n) {
2404 idx.dwFlags = AVIIF_NOTIME;
2405 idx.ckid = MAKEAVICKID(cktypePALchange, pStream->nStream);
2406 idx.dwChunkLength = pStream->idxFmtChanges[pos].dwChunkLength;
2407 idx.dwChunkOffset =
2408 pStream->idxFmtChanges[pos].dwChunkOffset - This->dwMoviChunkPos;
2409 if (mmioWrite(This->hmmio, (HPSTR)&idx, sizeof(idx)) != sizeof(idx))
2410 return AVIERR_FILEWRITE;
2411 break;
2412 }
2413 }
2414 } /* if have formatchanges */
2415
2416 idx.ckid = pStream->idxFrames[n].ckid;
2417 idx.dwFlags = pStream->idxFrames[n].dwFlags;
2418 idx.dwChunkLength = pStream->idxFrames[n].dwChunkLength;
2419 idx.dwChunkOffset = pStream->idxFrames[n].dwChunkOffset
2420 - This->dwMoviChunkPos;
2421
2422 if (mmioWrite(This->hmmio, (HPSTR)&idx, sizeof(idx)) != sizeof(idx))
2423 return AVIERR_FILEWRITE;
2424 }
2425 }
2426 } /* if not interleaved */
2427
2428 if (mmioAscend(This->hmmio, &ck, 0) != S_OK)
2429 return AVIERR_FILEWRITE;
2430
2431 return AVIERR_OK;
2432 }
2433
2434 static ULONG AVIFILE_SearchStream(IAVIFileImpl *This, DWORD fcc, LONG lSkip)
2435 {
2436 UINT i;
2437 UINT nStream;
2438
2439 /* pre-condition */
2440 assert(lSkip >= 0);
2441
2442 if (fcc != 0) {
2443 /* search the number of the specified stream */
2444 nStream = (ULONG)-1;
2445 for (i = 0; i < This->fInfo.dwStreams; i++) {
2446 assert(This->ppStreams[i] != NULL);
2447
2448 if (This->ppStreams[i]->sInfo.fccType == fcc) {
2449 if (lSkip == 0) {
2450 nStream = i;
2451 break;
2452 } else
2453 lSkip--;
2454 }
2455 }
2456 } else
2457 nStream = lSkip;
2458
2459 return nStream;
2460 }
2461
2462 static void AVIFILE_UpdateInfo(IAVIFileImpl *This)
2463 {
2464 UINT i;
2465
2466 /* pre-conditions */
2467 assert(This != NULL);
2468
2469 This->fInfo.dwMaxBytesPerSec = 0;
2470 This->fInfo.dwCaps = AVIFILECAPS_CANREAD|AVIFILECAPS_CANWRITE;
2471 This->fInfo.dwSuggestedBufferSize = 0;
2472 This->fInfo.dwWidth = 0;
2473 This->fInfo.dwHeight = 0;
2474 This->fInfo.dwScale = 0;
2475 This->fInfo.dwRate = 0;
2476 This->fInfo.dwLength = 0;
2477 This->dwInitialFrames = 0;
2478
2479 for (i = 0; i < This->fInfo.dwStreams; i++) {
2480 AVISTREAMINFOW *psi;
2481 DWORD n;
2482
2483 /* pre-conditions */
2484 assert(This->ppStreams[i] != NULL);
2485
2486 psi = &This->ppStreams[i]->sInfo;
2487 assert(psi->dwScale != 0);
2488 assert(psi->dwRate != 0);
2489
2490 if (i == 0) {
2491 /* use first stream timings as base */
2492 This->fInfo.dwScale = psi->dwScale;
2493 This->fInfo.dwRate = psi->dwRate;
2494 This->fInfo.dwLength = psi->dwLength;
2495 } else {
2496 n = AVIStreamSampleToSample((PAVISTREAM)This->ppStreams[0],
2497 (PAVISTREAM)This->ppStreams[i],psi->dwLength);
2498 if (This->fInfo.dwLength < n)
2499 This->fInfo.dwLength = n;
2500 }
2501
2502 if (This->dwInitialFrames < psi->dwInitialFrames)
2503 This->dwInitialFrames = psi->dwInitialFrames;
2504
2505 if (This->fInfo.dwSuggestedBufferSize < psi->dwSuggestedBufferSize)
2506 This->fInfo.dwSuggestedBufferSize = psi->dwSuggestedBufferSize;
2507
2508 if (psi->dwSampleSize != 0) {
2509 /* fixed sample size -- exact computation */
2510 This->fInfo.dwMaxBytesPerSec += MulDiv(psi->dwSampleSize, psi->dwRate,
2511 psi->dwScale);
2512 } else {
2513 /* variable sample size -- only upper limit */
2514 This->fInfo.dwMaxBytesPerSec += MulDiv(psi->dwSuggestedBufferSize,
2515 psi->dwRate, psi->dwScale);
2516
2517 /* update dimensions */
2518 n = psi->rcFrame.right - psi->rcFrame.left;
2519 if (This->fInfo.dwWidth < n)
2520 This->fInfo.dwWidth = n;
2521 n = psi->rcFrame.bottom - psi->rcFrame.top;
2522 if (This->fInfo.dwHeight < n)
2523 This->fInfo.dwHeight = n;
2524 }
2525 }
2526 }
2527
2528 static HRESULT AVIFILE_WriteBlock(IAVIStreamImpl *This, DWORD block,
2529 FOURCC ckid, DWORD flags, LPVOID buffer,
2530 LONG size)
2531 {
2532 MMCKINFO ck;
2533
2534 ck.ckid = ckid;
2535 ck.cksize = size;
2536 ck.fccType = 0;
2537
2538 /* if no frame/block is already written, we must compute start of movi chunk */
2539 if (This->paf->dwMoviChunkPos == 0)
2540 AVIFILE_ComputeMoviStart(This->paf);
2541
2542 if (mmioSeek(This->paf->hmmio, This->paf->dwNextFramePos, SEEK_SET) == -1)
2543 return AVIERR_FILEWRITE;
2544
2545 if (mmioCreateChunk(This->paf->hmmio, &ck, 0) != S_OK)
2546 return AVIERR_FILEWRITE;
2547 if (buffer != NULL && size > 0) {
2548 if (mmioWrite(This->paf->hmmio, (HPSTR)buffer, size) != size)
2549 return AVIERR_FILEWRITE;
2550 }
2551 if (mmioAscend(This->paf->hmmio, &ck, 0) != S_OK)
2552 return AVIERR_FILEWRITE;
2553
2554 This->paf->fDirty = TRUE;
2555 This->paf->dwNextFramePos = mmioSeek(This->paf->hmmio, 0, SEEK_CUR);
2556
2557 return AVIFILE_AddFrame(This, ckid, size,
2558 ck.dwDataOffset - 2 * sizeof(DWORD), flags);
2559 }
Windows API implementation