2 * Copyright 2002 Michael Günnewig
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.
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.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
32 #include "avifile_private.h"
34 #include "wine/debug.h"
36 WINE_DEFAULT_DEBUG_CHANNEL(avifile);
38 #define MAX_FRAMESIZE (16 * 1024 * 1024)
39 #define MAX_FRAMESIZE_DIFF 512
41 /***********************************************************************/
43 static HRESULT WINAPI ICMStream_fnQueryInterface(IAVIStream*iface,REFIID refiid,LPVOID *obj);
44 static ULONG WINAPI ICMStream_fnAddRef(IAVIStream*iface);
45 static ULONG WINAPI ICMStream_fnRelease(IAVIStream* iface);
46 static HRESULT WINAPI ICMStream_fnCreate(IAVIStream*iface,LPARAM lParam1,LPARAM lParam2);
47 static HRESULT WINAPI ICMStream_fnInfo(IAVIStream*iface,AVISTREAMINFOW *psi,LONG size);
48 static LONG WINAPI ICMStream_fnFindSample(IAVIStream*iface,LONG pos,LONG flags);
49 static HRESULT WINAPI ICMStream_fnReadFormat(IAVIStream*iface,LONG pos,LPVOID format,LONG *formatsize);
50 static HRESULT WINAPI ICMStream_fnSetFormat(IAVIStream*iface,LONG pos,LPVOID format,LONG formatsize);
51 static HRESULT WINAPI ICMStream_fnRead(IAVIStream*iface,LONG start,LONG samples,LPVOID buffer,LONG buffersize,LONG *bytesread,LONG *samplesread);
52 static HRESULT WINAPI ICMStream_fnWrite(IAVIStream*iface,LONG start,LONG samples,LPVOID buffer,LONG buffersize,DWORD flags,LONG *sampwritten,LONG *byteswritten);
53 static HRESULT WINAPI ICMStream_fnDelete(IAVIStream*iface,LONG start,LONG samples);
54 static HRESULT WINAPI ICMStream_fnReadData(IAVIStream*iface,DWORD fcc,LPVOID lp,LONG *lpread);
55 static HRESULT WINAPI ICMStream_fnWriteData(IAVIStream*iface,DWORD fcc,LPVOID lp,LONG size);
56 static HRESULT WINAPI ICMStream_fnSetInfo(IAVIStream*iface,AVISTREAMINFOW*info,LONG infolen);
58 static const struct IAVIStreamVtbl iicmst = {
59 ICMStream_fnQueryInterface,
64 ICMStream_fnFindSample,
65 ICMStream_fnReadFormat,
66 ICMStream_fnSetFormat,
71 ICMStream_fnWriteData,
75 typedef struct _IAVIStreamImpl {
77 const IAVIStreamVtbl *lpVtbl;
80 /* IAVIStream stuff */
92 DWORD dwBytesPerFrame;
95 LPBITMAPINFOHEADER lpbiCur; /* current frame */
97 LPBITMAPINFOHEADER lpbiPrev; /* previous frame */
100 LPBITMAPINFOHEADER lpbiOutput; /* output format of codec */
102 LPBITMAPINFOHEADER lpbiInput; /* input format for codec */
106 /***********************************************************************/
108 static HRESULT AVIFILE_EncodeFrame(IAVIStreamImpl *This,
109 LPBITMAPINFOHEADER lpbi, LPVOID lpBits);
110 static HRESULT AVIFILE_OpenGetFrame(IAVIStreamImpl *This);
112 static inline void AVIFILE_Reset(IAVIStreamImpl *This)
116 This->dwLastQuality = ICQUALITY_HIGH;
117 This->dwUnusedBytes = 0;
120 HRESULT AVIFILE_CreateICMStream(REFIID riid, LPVOID *ppv)
122 IAVIStreamImpl *pstream;
125 assert(riid != NULL && ppv != NULL);
129 pstream = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IAVIStreamImpl));
131 return AVIERR_MEMORY;
133 pstream->lpVtbl = &iicmst;
134 AVIFILE_Reset(pstream);
136 hr = IAVIStream_QueryInterface((IAVIStream*)pstream, riid, ppv);
138 HeapFree(GetProcessHeap(), 0, pstream);
143 static HRESULT WINAPI ICMStream_fnQueryInterface(IAVIStream *iface,
144 REFIID refiid, LPVOID *obj)
146 IAVIStreamImpl *This = (IAVIStreamImpl *)iface;
148 TRACE("(%p,%s,%p)\n", iface, debugstr_guid(refiid), obj);
150 if (IsEqualGUID(&IID_IUnknown, refiid) ||
151 IsEqualGUID(&IID_IAVIStream, refiid)) {
153 IAVIStream_AddRef(iface);
158 return OLE_E_ENUM_NOMORE;
161 static ULONG WINAPI ICMStream_fnAddRef(IAVIStream *iface)
163 IAVIStreamImpl *This = (IAVIStreamImpl *)iface;
164 ULONG ref = InterlockedIncrement(&This->ref);
166 TRACE("(%p) -> %d\n", iface, ref);
168 /* also add reference to the nested stream */
169 if (This->pStream != NULL)
170 IAVIStream_AddRef(This->pStream);
175 static ULONG WINAPI ICMStream_fnRelease(IAVIStream* iface)
177 IAVIStreamImpl *This = (IAVIStreamImpl *)iface;
178 ULONG ref = InterlockedDecrement(&This->ref);
180 TRACE("(%p) -> %d\n", iface, ref);
184 if (This->pg != NULL) {
185 AVIStreamGetFrameClose(This->pg);
188 if (This->pStream != NULL) {
189 IAVIStream_Release(This->pStream);
190 This->pStream = NULL;
192 if (This->hic != NULL) {
193 if (This->lpbiPrev != NULL) {
194 ICDecompressEnd(This->hic);
195 HeapFree(GetProcessHeap(), 0, This->lpbiPrev);
196 This->lpbiPrev = NULL;
199 ICCompressEnd(This->hic);
202 if (This->lpbiCur != NULL) {
203 HeapFree(GetProcessHeap(), 0, This->lpbiCur);
204 This->lpbiCur = NULL;
207 if (This->lpbiOutput != NULL) {
208 HeapFree(GetProcessHeap(), 0, This->lpbiOutput);
209 This->lpbiOutput = NULL;
212 if (This->lpbiInput != NULL) {
213 HeapFree(GetProcessHeap(), 0, This->lpbiInput);
214 This->lpbiInput = NULL;
218 HeapFree(GetProcessHeap(), 0, This);
223 /* also release reference to the nested stream */
224 if (This->pStream != NULL)
225 IAVIStream_Release(This->pStream);
230 /* lParam1: PAVISTREAM
231 * lParam2: LPAVICOMPRESSOPTIONS
233 static HRESULT WINAPI ICMStream_fnCreate(IAVIStream *iface, LPARAM lParam1,
236 IAVIStreamImpl *This = (IAVIStreamImpl *)iface;
239 ICCOMPRESSFRAMES icFrames;
240 LPAVICOMPRESSOPTIONS pco = (LPAVICOMPRESSOPTIONS)lParam2;
242 TRACE("(%p,0x%08lX,0x%08lX)\n", iface, lParam1, lParam2);
244 /* check parameter */
245 if ((LPVOID)lParam1 == NULL)
246 return AVIERR_BADPARAM;
248 /* get infos from stream */
249 IAVIStream_Info((PAVISTREAM)lParam1, &This->sInfo, sizeof(This->sInfo));
250 if (This->sInfo.fccType != streamtypeVIDEO)
251 return AVIERR_ERROR; /* error in registry or AVIMakeCompressedStream */
253 /* add reference to the stream */
254 This->pStream = (PAVISTREAM)lParam1;
255 IAVIStream_AddRef(This->pStream);
259 if (pco != NULL && pco->fccHandler != comptypeDIB) {
260 /* we should compress */
261 This->sInfo.fccHandler = pco->fccHandler;
263 This->hic = ICOpen(ICTYPE_VIDEO, pco->fccHandler, ICMODE_COMPRESS);
264 if (This->hic == NULL)
265 return AVIERR_NOCOMPRESSOR;
267 /* restore saved state of codec */
268 if (pco->cbParms > 0 && pco->lpParms != NULL) {
269 ICSetState(This->hic, pco->lpParms, pco->cbParms);
272 /* set quality -- resolve default quality */
273 This->sInfo.dwQuality = pco->dwQuality;
274 if (pco->dwQuality == ICQUALITY_DEFAULT)
275 This->sInfo.dwQuality = ICGetDefaultQuality(This->hic);
277 /* get capabilities of codec */
278 ICGetInfo(This->hic, &icinfo, sizeof(icinfo));
279 This->dwICMFlags = icinfo.dwFlags;
282 if ((pco->dwFlags & AVICOMPRESSF_KEYFRAMES) &&
283 (icinfo.dwFlags & (VIDCF_TEMPORAL|VIDCF_FASTTEMPORALC))) {
284 This->lKeyFrameEvery = pco->dwKeyFrameEvery;
286 This->lKeyFrameEvery = 1;
289 if ((pco->dwFlags & AVICOMPRESSF_DATARATE)) {
290 /* Do we have a chance to reduce size to desired one? */
291 if ((icinfo.dwFlags & (VIDCF_CRUNCH|VIDCF_QUALITY)) == 0)
292 return AVIERR_NOCOMPRESSOR;
294 assert(This->sInfo.dwRate != 0);
296 This->dwBytesPerFrame = MulDiv(pco->dwBytesPerSecond,
297 This->sInfo.dwScale, This->sInfo.dwRate);
299 pco->dwBytesPerSecond = 0;
300 This->dwBytesPerFrame = 0;
303 if (icinfo.dwFlags & VIDCF_COMPRESSFRAMES) {
304 memset(&icFrames, 0, sizeof(icFrames));
305 icFrames.lpbiOutput = This->lpbiOutput;
306 icFrames.lpbiInput = This->lpbiInput;
307 icFrames.lFrameCount = This->sInfo.dwLength;
308 icFrames.lQuality = This->sInfo.dwQuality;
309 icFrames.lDataRate = pco->dwBytesPerSecond;
310 icFrames.lKeyRate = This->lKeyFrameEvery;
311 icFrames.dwRate = This->sInfo.dwRate;
312 icFrames.dwScale = This->sInfo.dwScale;
313 ICSendMessage(This->hic, ICM_COMPRESS_FRAMES_INFO,
314 (LPARAM)&icFrames, (LPARAM)sizeof(icFrames));
317 This->sInfo.fccHandler = comptypeDIB;
322 static HRESULT WINAPI ICMStream_fnInfo(IAVIStream *iface,LPAVISTREAMINFOW psi,
325 IAVIStreamImpl *This = (IAVIStreamImpl *)iface;
327 TRACE("(%p,%p,%d)\n", iface, psi, size);
330 return AVIERR_BADPARAM;
332 return AVIERR_BADSIZE;
334 memcpy(psi, &This->sInfo, min((DWORD)size, sizeof(This->sInfo)));
336 if ((DWORD)size < sizeof(This->sInfo))
337 return AVIERR_BUFFERTOOSMALL;
341 static LONG WINAPI ICMStream_fnFindSample(IAVIStream *iface, LONG pos,
344 IAVIStreamImpl *This = (IAVIStreamImpl *)iface;
346 TRACE("(%p,%d,0x%08X)\n",iface,pos,flags);
348 if (flags & FIND_FROM_START) {
349 pos = This->sInfo.dwStart;
350 flags &= ~(FIND_FROM_START|FIND_PREV);
354 if (flags & FIND_RET)
355 WARN(": FIND_RET flags will be ignored!\n");
357 if (flags & FIND_KEY) {
358 if (This->hic == NULL)
359 return pos; /* we decompress so every frame is a keyframe */
361 if (flags & FIND_PREV) {
362 /* need to read old or new frames? */
363 if (This->lLastKey <= pos || pos < This->lCurrent)
364 IAVIStream_Read(iface, pos, 1, NULL, 0, NULL, NULL);
366 return This->lLastKey;
368 } else if (flags & FIND_ANY) {
369 return pos; /* We really don't know, reread is to expensive, so guess. */
370 } else if (flags & FIND_FORMAT) {
371 if (flags & FIND_PREV)
378 static HRESULT WINAPI ICMStream_fnReadFormat(IAVIStream *iface, LONG pos,
379 LPVOID format, LONG *formatsize)
381 IAVIStreamImpl *This = (IAVIStreamImpl *)iface;
383 LPBITMAPINFOHEADER lpbi;
386 TRACE("(%p,%d,%p,%p)\n", iface, pos, format, formatsize);
388 if (formatsize == NULL)
389 return AVIERR_BADPARAM;
391 if (This->pg == NULL) {
392 hr = AVIFILE_OpenGetFrame(This);
398 lpbi = (LPBITMAPINFOHEADER)AVIStreamGetFrame(This->pg, pos);
400 return AVIERR_MEMORY;
402 if (This->hic == NULL) {
403 LONG size = lpbi->biSize + lpbi->biClrUsed * sizeof(RGBQUAD);
406 if (This->sInfo.dwSuggestedBufferSize < lpbi->biSizeImage)
407 This->sInfo.dwSuggestedBufferSize = lpbi->biSizeImage;
409 This->cbOutput = size;
410 if (format != NULL) {
411 if (This->lpbiOutput != NULL)
412 memcpy(format, This->lpbiOutput, min(*formatsize, This->cbOutput));
414 memcpy(format, lpbi, min(*formatsize, size));
417 } else if (format != NULL)
418 memcpy(format, This->lpbiOutput, min(*formatsize, This->cbOutput));
420 if (*formatsize < This->cbOutput)
421 hr = AVIERR_BUFFERTOOSMALL;
425 *formatsize = This->cbOutput;
429 static HRESULT WINAPI ICMStream_fnSetFormat(IAVIStream *iface, LONG pos,
430 LPVOID format, LONG formatsize)
432 IAVIStreamImpl *This = (IAVIStreamImpl *)iface;
434 TRACE("(%p,%d,%p,%d)\n", iface, pos, format, formatsize);
436 /* check parameters */
437 if (format == NULL || formatsize <= 0)
438 return AVIERR_BADPARAM;
440 /* We can only accept RGB data for writing */
441 if (((LPBITMAPINFOHEADER)format)->biCompression != BI_RGB) {
442 WARN(": need RGB data as input\n");
443 return AVIERR_UNSUPPORTED;
446 /* Input format already known?
447 * Changing of palette is supported, but be quiet if it's the same */
448 if (This->lpbiInput != NULL) {
449 if (This->cbInput != formatsize)
450 return AVIERR_UNSUPPORTED;
452 if (memcmp(format, This->lpbiInput, formatsize) == 0)
456 /* Does the nested stream support writing? */
457 if ((This->sInfo.dwCaps & AVIFILECAPS_CANWRITE) == 0)
458 return AVIERR_READONLY;
460 /* check if frame is already written */
461 if (This->sInfo.dwLength + This->sInfo.dwStart > pos)
462 return AVIERR_UNSUPPORTED;
464 /* check if we should compress */
465 if (This->sInfo.fccHandler == 0 ||
466 This->sInfo.fccHandler == mmioFOURCC('N','O','N','E'))
467 This->sInfo.fccHandler = comptypeDIB;
469 /* only pass through? */
470 if (This->sInfo.fccHandler == comptypeDIB)
471 return IAVIStream_SetFormat(This->pStream, pos, format, formatsize);
473 /* initial format setting? */
474 if (This->lpbiInput == NULL) {
477 assert(This->hic != NULL);
479 /* get memory for input format */
480 This->lpbiInput = HeapAlloc(GetProcessHeap(), 0, formatsize);
481 if (This->lpbiInput == NULL)
482 return AVIERR_MEMORY;
483 This->cbInput = formatsize;
484 memcpy(This->lpbiInput, format, formatsize);
486 /* get output format */
487 size = ICCompressGetFormatSize(This->hic, This->lpbiInput);
488 if (size < sizeof(BITMAPINFOHEADER))
489 return AVIERR_COMPRESSOR;
490 This->lpbiOutput = HeapAlloc(GetProcessHeap(), 0, size);
491 if (This->lpbiOutput == NULL)
492 return AVIERR_MEMORY;
493 This->cbOutput = size;
494 if (ICCompressGetFormat(This->hic,This->lpbiInput,This->lpbiOutput) < S_OK)
495 return AVIERR_COMPRESSOR;
497 /* update AVISTREAMINFO structure */
498 This->sInfo.rcFrame.right =
499 This->sInfo.rcFrame.left + This->lpbiOutput->biWidth;
500 This->sInfo.rcFrame.bottom =
501 This->sInfo.rcFrame.top + This->lpbiOutput->biHeight;
503 /* prepare codec for compression */
504 if (ICCompressBegin(This->hic, This->lpbiInput, This->lpbiOutput) != S_OK)
505 return AVIERR_COMPRESSOR;
507 /* allocate memory for compressed frame */
508 size = ICCompressGetSize(This->hic, This->lpbiInput, This->lpbiOutput);
509 This->lpbiCur = HeapAlloc(GetProcessHeap(), 0, This->cbOutput + size);
510 if (This->lpbiCur == NULL)
511 return AVIERR_MEMORY;
512 memcpy(This->lpbiCur, This->lpbiOutput, This->cbOutput);
513 This->lpCur = DIBPTR(This->lpbiCur);
515 /* allocate memory for last frame if needed */
516 if (This->lKeyFrameEvery != 1 &&
517 (This->dwICMFlags & VIDCF_FASTTEMPORALC) == 0) {
518 size = ICDecompressGetFormatSize(This->hic, This->lpbiOutput);
519 This->lpbiPrev = HeapAlloc(GetProcessHeap(), 0, size);
520 if (This->lpbiPrev == NULL)
521 return AVIERR_MEMORY;
522 if (ICDecompressGetFormat(This->hic, This->lpbiOutput, This->lpbiPrev) < S_OK)
523 return AVIERR_COMPRESSOR;
525 if (This->lpbiPrev->biSizeImage == 0) {
526 This->lpbiPrev->biSizeImage =
527 DIBWIDTHBYTES(*This->lpbiPrev) * This->lpbiPrev->biHeight;
530 /* get memory for format and picture */
531 size += This->lpbiPrev->biSizeImage;
532 This->lpbiPrev = HeapReAlloc(GetProcessHeap(), 0, This->lpbiPrev, size);
533 if (This->lpbiPrev == NULL)
534 return AVIERR_MEMORY;
535 This->lpPrev = DIBPTR(This->lpbiPrev);
537 /* prepare codec also for decompression */
538 if (ICDecompressBegin(This->hic,This->lpbiOutput,This->lpbiPrev) != S_OK)
539 return AVIERR_COMPRESSOR;
542 /* format change -- check that's only the palette */
543 LPBITMAPINFOHEADER lpbi = (LPBITMAPINFOHEADER)format;
545 if (lpbi->biSize != This->lpbiInput->biSize ||
546 lpbi->biWidth != This->lpbiInput->biWidth ||
547 lpbi->biHeight != This->lpbiInput->biHeight ||
548 lpbi->biBitCount != This->lpbiInput->biBitCount ||
549 lpbi->biPlanes != This->lpbiInput->biPlanes ||
550 lpbi->biCompression != This->lpbiInput->biCompression ||
551 lpbi->biClrUsed != This->lpbiInput->biClrUsed)
552 return AVIERR_UNSUPPORTED;
554 /* get new output format */
555 if (ICCompressGetFormat(This->hic, lpbi, This->lpbiOutput) < S_OK)
556 return AVIERR_BADFORMAT;
558 /* restart compression */
559 ICCompressEnd(This->hic);
560 if (ICCompressBegin(This->hic, lpbi, This->lpbiOutput) != S_OK)
561 return AVIERR_COMPRESSOR;
563 /* check if we need to restart decompresion also */
564 if (This->lKeyFrameEvery != 1 &&
565 (This->dwICMFlags & VIDCF_FASTTEMPORALC) == 0) {
566 ICDecompressEnd(This->hic);
567 if (ICDecompressGetFormat(This->hic,This->lpbiOutput,This->lpbiPrev) < S_OK)
568 return AVIERR_COMPRESSOR;
569 if (ICDecompressBegin(This->hic,This->lpbiOutput,This->lpbiPrev) != S_OK)
570 return AVIERR_COMPRESSOR;
574 /* tell nested stream the new format */
575 return IAVIStream_SetFormat(This->pStream, pos,
576 This->lpbiOutput, This->cbOutput);
579 static HRESULT WINAPI ICMStream_fnRead(IAVIStream *iface, LONG start,
580 LONG samples, LPVOID buffer,
581 LONG buffersize, LPLONG bytesread,
584 IAVIStreamImpl *This = (IAVIStreamImpl *)iface;
586 LPBITMAPINFOHEADER lpbi;
588 TRACE("(%p,%d,%d,%p,%d,%p,%p)\n", iface, start, samples, buffer,
589 buffersize, bytesread, samplesread);
591 /* clear return parameters if given */
592 if (bytesread != NULL)
594 if (samplesread != NULL)
600 /* check parameters */
601 if (samples != 1 && (bytesread == NULL && samplesread == NULL))
602 return AVIERR_BADPARAM;
603 if (samples == -1) /* read as much as we could */
606 if (This->pg == NULL) {
607 HRESULT hr = AVIFILE_OpenGetFrame(This);
613 /* compress or decompress? */
614 if (This->hic == NULL) {
616 lpbi = (LPBITMAPINFOHEADER)AVIStreamGetFrame(This->pg, start);
618 return AVIERR_MEMORY;
620 if (buffer != NULL && buffersize > 0) {
621 /* check buffersize */
622 if (buffersize < lpbi->biSizeImage)
623 return AVIERR_BUFFERTOOSMALL;
625 memcpy(buffer, DIBPTR(lpbi), lpbi->biSizeImage);
628 /* fill out return parameters if given */
629 if (bytesread != NULL)
630 *bytesread = lpbi->biSizeImage;
633 if (This->lCurrent > start)
636 while (start > This->lCurrent) {
639 lpbi = (LPBITMAPINFOHEADER)AVIStreamGetFrame(This->pg, ++This->lCurrent);
642 return AVIERR_MEMORY;
645 hr = AVIFILE_EncodeFrame(This, lpbi, DIBPTR(lpbi));
652 if (buffer != NULL && buffersize > 0) {
653 /* check buffersize */
654 if (This->lpbiCur->biSizeImage > buffersize)
655 return AVIERR_BUFFERTOOSMALL;
657 memcpy(buffer, This->lpCur, This->lpbiCur->biSizeImage);
660 /* fill out return parameters if given */
661 if (bytesread != NULL)
662 *bytesread = This->lpbiCur->biSizeImage;
665 /* fill out return parameters if given */
666 if (samplesread != NULL)
672 static HRESULT WINAPI ICMStream_fnWrite(IAVIStream *iface, LONG start,
673 LONG samples, LPVOID buffer,
674 LONG buffersize, DWORD flags,
678 IAVIStreamImpl *This = (IAVIStreamImpl *)iface;
682 TRACE("(%p,%d,%d,%p,%d,0x%08X,%p,%p)\n", iface, start, samples,
683 buffer, buffersize, flags, sampwritten, byteswritten);
685 /* clear return parameters if given */
686 if (sampwritten != NULL)
688 if (byteswritten != NULL)
691 /* check parameters */
692 if (buffer == NULL && (buffersize > 0 || samples > 0))
693 return AVIERR_BADPARAM;
695 if (This->sInfo.fccHandler == comptypeDIB) {
696 /* only pass through */
697 flags |= AVIIF_KEYFRAME;
699 return IAVIStream_Write(This->pStream, start, samples, buffer, buffersize,
700 flags, sampwritten, byteswritten);
702 /* compress data before writing to pStream */
703 if (samples != 1 && (sampwritten == NULL && byteswritten == NULL))
704 return AVIERR_UNSUPPORTED;
706 This->lCurrent = start;
707 hr = AVIFILE_EncodeFrame(This, This->lpbiInput, buffer);
711 if (This->lLastKey == start)
712 flags |= AVIIF_KEYFRAME;
714 return IAVIStream_Write(This->pStream, start, samples, This->lpCur,
715 This->lpbiCur->biSizeImage, flags, byteswritten,
720 static HRESULT WINAPI ICMStream_fnDelete(IAVIStream *iface, LONG start,
723 IAVIStreamImpl *This = (IAVIStreamImpl *)iface;
725 TRACE("(%p,%d,%d)\n", iface, start, samples);
727 return IAVIStream_Delete(This->pStream, start, samples);
730 static HRESULT WINAPI ICMStream_fnReadData(IAVIStream *iface, DWORD fcc,
731 LPVOID lp, LPLONG lpread)
733 IAVIStreamImpl *This = (IAVIStreamImpl *)iface;
735 TRACE("(%p,0x%08X,%p,%p)\n", iface, fcc, lp, lpread);
737 assert(This->pStream != NULL);
739 return IAVIStream_ReadData(This->pStream, fcc, lp, lpread);
742 static HRESULT WINAPI ICMStream_fnWriteData(IAVIStream *iface, DWORD fcc,
743 LPVOID lp, LONG size)
745 IAVIStreamImpl *This = (IAVIStreamImpl *)iface;
747 TRACE("(%p,0x%08x,%p,%d)\n", iface, fcc, lp, size);
749 assert(This->pStream != NULL);
751 return IAVIStream_WriteData(This->pStream, fcc, lp, size);
754 static HRESULT WINAPI ICMStream_fnSetInfo(IAVIStream *iface,
755 LPAVISTREAMINFOW info, LONG infolen)
757 FIXME("(%p,%p,%d): stub\n", iface, info, infolen);
762 /***********************************************************************/
764 static HRESULT AVIFILE_EncodeFrame(IAVIStreamImpl *This,
765 LPBITMAPINFOHEADER lpbi, LPVOID lpBits)
767 DWORD dwMinQual, dwMaxQual, dwCurQual;
771 BOOL bDecreasedQual = FALSE;
775 /* make lKeyFrameEvery and at start a keyframe */
776 if ((This->lKeyFrameEvery != 0 &&
777 (This->lCurrent - This->lLastKey) >= This->lKeyFrameEvery) ||
778 This->lCurrent == This->sInfo.dwStart) {
779 idxFlags = AVIIF_KEYFRAME;
780 icmFlags = ICCOMPRESS_KEYFRAME;
783 if (This->lKeyFrameEvery != 0) {
784 if (This->lCurrent == This->sInfo.dwStart) {
785 if (idxFlags & AVIIF_KEYFRAME) {
786 /* for keyframes allow to consume all unused bytes */
787 dwRequest = This->dwBytesPerFrame + This->dwUnusedBytes;
788 This->dwUnusedBytes = 0;
790 /* for non-keyframes only allow something of the unused bytes to be consumed */
794 if (This->dwBytesPerFrame >= This->dwUnusedBytes)
795 tmp1 = This->dwBytesPerFrame / This->lKeyFrameEvery;
796 tmp2 = (This->dwUnusedBytes + tmp1) / This->lKeyFrameEvery;
798 dwRequest = This->dwBytesPerFrame - tmp1 + tmp2;
799 This->dwUnusedBytes -= tmp2;
802 dwRequest = MAX_FRAMESIZE;
804 /* only one keyframe at start desired */
805 if (This->lCurrent == This->sInfo.dwStart) {
806 dwRequest = This->dwBytesPerFrame + This->dwUnusedBytes;
807 This->dwUnusedBytes = 0;
809 dwRequest = MAX_FRAMESIZE;
812 /* must we check for framesize to gain requested
813 * datarate or could we trust codec? */
814 doSizeCheck = (dwRequest != 0 && ((This->dwICMFlags & (VIDCF_CRUNCH|VIDCF_QUALITY)) == 0));
816 dwMaxQual = dwCurQual = This->sInfo.dwQuality;
817 dwMinQual = ICQUALITY_LOW;
820 if ((icmFlags & ICCOMPRESS_KEYFRAME) == 0 &&
821 (This->dwICMFlags & VIDCF_FASTTEMPORALC) == 0)
828 hr = ICCompress(This->hic,icmFlags,This->lpbiCur,This->lpCur,lpbi,lpBits,
829 &idxCkid, &idxFlags, This->lCurrent, dwRequest, dwCurQual,
830 noPrev ? NULL:This->lpbiPrev, noPrev ? NULL:This->lpPrev);
831 if (hr == ICERR_NEWPALETTE) {
832 FIXME(": codec has changed palette -- unhandled!\n");
833 } else if (hr != ICERR_OK)
834 return AVIERR_COMPRESSOR;
836 /* need to check for framesize */
840 if (dwRequest >= This->lpbiCur->biSizeImage) {
841 /* frame is smaller -- try to maximize quality */
842 if (dwMaxQual - dwCurQual > 10) {
843 DWORD tmp = dwRequest / 8;
845 if (tmp < MAX_FRAMESIZE_DIFF)
846 tmp = MAX_FRAMESIZE_DIFF;
848 if (tmp < dwRequest - This->lpbiCur->biSizeImage && bDecreasedQual) {
850 dwCurQual = (dwMinQual + dwMaxQual) / 2;
856 } else if (dwMaxQual - dwMinQual <= 1) {
859 dwMaxQual = dwCurQual;
861 if (bDecreasedQual || dwCurQual == This->dwLastQuality)
862 dwCurQual = (dwMinQual + dwMaxQual) / 2;
864 FIXME(": no new quality computed min=%u cur=%u max=%u last=%u\n",
865 dwMinQual, dwCurQual, dwMaxQual, This->dwLastQuality);
867 bDecreasedQual = TRUE;
871 /* remember some values */
872 This->dwLastQuality = dwCurQual;
873 This->dwUnusedBytes = dwRequest - This->lpbiCur->biSizeImage;
874 if (icmFlags & ICCOMPRESS_KEYFRAME)
875 This->lLastKey = This->lCurrent;
877 /* Does we manage previous frame? */
878 if (This->lpPrev != NULL && This->lKeyFrameEvery != 1)
879 ICDecompress(This->hic, 0, This->lpbiCur, This->lpCur,
880 This->lpbiPrev, This->lpPrev);
885 static HRESULT AVIFILE_OpenGetFrame(IAVIStreamImpl *This)
887 LPBITMAPINFOHEADER lpbi;
891 assert(This != NULL);
892 assert(This->pStream != NULL);
893 assert(This->pg == NULL);
895 This->pg = AVIStreamGetFrameOpen(This->pStream, NULL);
896 if (This->pg == NULL)
899 /* When we only decompress this is enough */
900 if (This->sInfo.fccHandler == comptypeDIB)
903 assert(This->hic != NULL);
904 assert(This->lpbiOutput == NULL);
906 /* get input format */
907 lpbi = (LPBITMAPINFOHEADER)AVIStreamGetFrame(This->pg, This->sInfo.dwStart);
909 return AVIERR_MEMORY;
911 /* get memory for output format */
912 size = ICCompressGetFormatSize(This->hic, lpbi);
913 if ((LONG)size < (LONG)sizeof(BITMAPINFOHEADER))
914 return AVIERR_COMPRESSOR;
915 This->lpbiOutput = HeapAlloc(GetProcessHeap(), 0, size);
916 if (This->lpbiOutput == NULL)
917 return AVIERR_MEMORY;
918 This->cbOutput = size;
920 if (ICCompressGetFormat(This->hic, lpbi, This->lpbiOutput) < S_OK)
921 return AVIERR_BADFORMAT;
923 /* update AVISTREAMINFO structure */
924 This->sInfo.rcFrame.right =
925 This->sInfo.rcFrame.left + This->lpbiOutput->biWidth;
926 This->sInfo.rcFrame.bottom =
927 This->sInfo.rcFrame.top + This->lpbiOutput->biHeight;
928 This->sInfo.dwSuggestedBufferSize =
929 ICCompressGetSize(This->hic, lpbi, This->lpbiOutput);
931 /* prepare codec for compression */
932 if (ICCompressBegin(This->hic, lpbi, This->lpbiOutput) != S_OK)
933 return AVIERR_COMPRESSOR;
935 /* allocate memory for current frame */
936 size += This->sInfo.dwSuggestedBufferSize;
937 This->lpbiCur = HeapAlloc(GetProcessHeap(), 0, size);
938 if (This->lpbiCur == NULL)
939 return AVIERR_MEMORY;
940 memcpy(This->lpbiCur, This->lpbiOutput, This->cbOutput);
941 This->lpCur = DIBPTR(This->lpbiCur);
943 /* allocate memory for last frame if needed */
944 if (This->lKeyFrameEvery != 1 &&
945 (This->dwICMFlags & VIDCF_FASTTEMPORALC) == 0) {
946 size = ICDecompressGetFormatSize(This->hic, This->lpbiOutput);
947 This->lpbiPrev = HeapAlloc(GetProcessHeap(), 0, size);
948 if (This->lpbiPrev == NULL)
949 return AVIERR_MEMORY;
950 if (ICDecompressGetFormat(This->hic, This->lpbiOutput, This->lpbiPrev) < S_OK)
951 return AVIERR_COMPRESSOR;
953 if (This->lpbiPrev->biSizeImage == 0) {
954 This->lpbiPrev->biSizeImage =
955 DIBWIDTHBYTES(*This->lpbiPrev) * This->lpbiPrev->biHeight;
958 /* get memory for format and picture */
959 size += This->lpbiPrev->biSizeImage;
960 This->lpbiPrev = HeapReAlloc(GetProcessHeap(), 0, This->lpbiPrev, size );
961 if (This->lpbiPrev == NULL)
962 return AVIERR_MEMORY;
963 This->lpPrev = DIBPTR(This->lpbiPrev);
965 /* prepare codec also for decompression */
966 if (ICDecompressBegin(This->hic,This->lpbiOutput,This->lpbiPrev) != S_OK)
967 return AVIERR_COMPRESSOR;