2 * Copyright 2002-2003 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 #define COM_NO_WINDOWS_H
31 #include "avifile_private.h"
33 #include "wine/debug.h"
35 WINE_DEFAULT_DEBUG_CHANNEL(avifile);
38 #define DIBPTR(lp) ((LPBYTE)(lp) + (lp)->biSize + \
39 (lp)->biClrUsed * sizeof(RGBQUAD))
42 /***********************************************************************/
44 static HRESULT WINAPI IGetFrame_fnQueryInterface(IGetFrame *iface,
45 REFIID refiid, LPVOID *obj);
46 static ULONG WINAPI IGetFrame_fnAddRef(IGetFrame *iface);
47 static ULONG WINAPI IGetFrame_fnRelease(IGetFrame *iface);
48 static LPVOID WINAPI IGetFrame_fnGetFrame(IGetFrame *iface, LONG lPos);
49 static HRESULT WINAPI IGetFrame_fnBegin(IGetFrame *iface, LONG lStart,
50 LONG lEnd, LONG lRate);
51 static HRESULT WINAPI IGetFrame_fnEnd(IGetFrame *iface);
52 static HRESULT WINAPI IGetFrame_fnSetFormat(IGetFrame *iface,
53 LPBITMAPINFOHEADER lpbi,
54 LPVOID lpBits, INT x, INT y,
57 struct ICOM_VTABLE(IGetFrame) igetframeVtbl = {
58 ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
59 IGetFrame_fnQueryInterface,
68 typedef struct _IGetFrameImpl {
70 ICOM_VFIELD(IGetFrame);
79 LPBITMAPINFOHEADER lpInFormat;
83 LPBITMAPINFOHEADER lpOutFormat;
94 DWORD dwFormatChangeCount;
98 /***********************************************************************/
100 static void AVIFILE_CloseCompressor(IGetFrameImpl *This)
102 if (This->lpOutFormat != NULL && This->lpInFormat != This->lpOutFormat) {
103 GlobalFreePtr(This->lpOutFormat);
104 This->lpOutFormat = NULL;
106 if (This->lpInFormat != NULL) {
107 GlobalFreePtr(This->lpInFormat);
108 This->lpInFormat = NULL;
110 if (This->hic != NULL) {
112 ICDecompressExEnd(This->hic);
114 ICDecompressEnd(This->hic);
120 PGETFRAME AVIFILE_CreateGetFrame(PAVISTREAM pStream)
124 /* check parameter */
128 pg = (IGetFrameImpl*)LocalAlloc(LPTR, sizeof(IGetFrameImpl));
130 pg->lpVtbl = &igetframeVtbl;
132 pg->lCurrentFrame = -1;
133 pg->pStream = pStream;
134 IAVIStream_AddRef(pStream);
137 return (PGETFRAME)pg;
140 static HRESULT WINAPI IGetFrame_fnQueryInterface(IGetFrame *iface,
141 REFIID refiid, LPVOID *obj)
143 ICOM_THIS(IGetFrameImpl,iface);
145 TRACE("(%p,%s,%p)\n", This, debugstr_guid(refiid), obj);
147 if (IsEqualGUID(&IID_IUnknown, refiid) ||
148 IsEqualGUID(&IID_IGetFrame, refiid)) {
153 return OLE_E_ENUM_NOMORE;
156 static ULONG WINAPI IGetFrame_fnAddRef(IGetFrame *iface)
158 ICOM_THIS(IGetFrameImpl,iface);
160 TRACE("(%p)\n", iface);
162 return ++(This->ref);
165 static ULONG WINAPI IGetFrame_fnRelease(IGetFrame *iface)
167 ICOM_THIS(IGetFrameImpl,iface);
169 TRACE("(%p)\n", iface);
171 if (!--(This->ref)) {
172 AVIFILE_CloseCompressor(This);
173 if (This->pStream != NULL) {
174 IAVIStream_Release(This->pStream);
175 This->pStream = NULL;
178 LocalFree((HLOCAL)iface);
185 static LPVOID WINAPI IGetFrame_fnGetFrame(IGetFrame *iface, LONG lPos)
187 ICOM_THIS(IGetFrameImpl,iface);
192 TRACE("(%p,%ld)\n", iface, lPos);
194 /* We don't want negative start values! -- marks invalid buffer content */
199 if (This->pStream == NULL)
201 if (This->lpInFormat == NULL)
204 /* Could stream have changed? */
205 if (! This->bFixedStream) {
206 AVISTREAMINFOW sInfo;
208 IAVIStream_Info(This->pStream, &sInfo, sizeof(sInfo));
210 if (sInfo.dwEditCount != This->dwEditCount) {
211 This->dwEditCount = sInfo.dwEditCount;
212 This->lCurrentFrame = -1;
215 if (sInfo.dwFormatChangeCount != This->dwFormatChangeCount) {
216 /* stream has changed */
217 if (This->lpOutFormat != NULL) {
220 memcpy(&bi, This->lpOutFormat, sizeof(bi));
221 AVIFILE_CloseCompressor(This);
223 if (FAILED(IGetFrame_SetFormat(iface, &bi, NULL, 0, 0, -1, -1))) {
224 if (FAILED(IGetFrame_SetFormat(iface, NULL, NULL, 0, 0, -1, -1)))
227 } else if (FAILED(IGetFrame_SetFormat(iface, NULL, NULL, 0, 0, -1, -1)))
232 if (lPos != This->lCurrentFrame) {
233 LONG lNext = IAVIStream_FindSample(This->pStream,lPos,FIND_KEY|FIND_PREV);
236 return NULL; /* frame doesn't exist */
237 if (lNext <= This->lCurrentFrame && This->lCurrentFrame < lPos)
238 lNext = This->lCurrentFrame + 1;
240 for (; lNext <= lPos; lNext++) {
241 /* new format for this frame? */
242 if (This->bFormatChanges) {
243 IAVIStream_ReadFormat(This->pStream, lNext,
244 This->lpInFormat, &This->cbInFormat);
245 if (This->lpOutFormat != NULL) {
246 if (This->lpOutFormat->biBitCount <= 8)
247 ICDecompressGetPalette(This->hic, This->lpInFormat,
252 /* read input frame */
253 while (FAILED(AVIStreamRead(This->pStream, lNext, 1, This->lpInBuffer,
254 This->cbInBuffer, &readBytes, &readSamples))) {
255 /* not enough memory for input buffer? */
257 if (FAILED(AVIStreamSampleSize(This->pStream, lNext, &readBytes)))
258 return NULL; /* bad thing, but bad things will happen */
259 if (readBytes <= 0) {
260 ERR(": IAVIStream::REad doesn't return needed bytes!\n");
264 /* IAVIStream::Read failed because of other reasons not buffersize? */
265 if (This->cbInBuffer >= readBytes)
267 This->cbInBuffer = This->cbInFormat + readBytes;
268 This->lpInFormat = GlobalReAllocPtr(This->lpInFormat, This->cbInBuffer, 0);
269 if (This->lpInFormat == NULL)
270 return NULL; /* out of memory */
271 This->lpInBuffer = (BYTE*)This->lpInFormat + This->cbInFormat;
274 if (readSamples != 1) {
275 ERR(": no frames read\n");
278 if (readBytes != 0) {
279 This->lpInFormat->biSizeImage = readBytes;
281 /* nothing to decompress? */
282 if (This->hic == NULL) {
283 This->lCurrentFrame = lPos;
284 return This->lpInFormat;
288 ICDecompressEx(This->hic,0,This->lpInFormat,This->lpInBuffer,0,0,
289 This->lpInFormat->biWidth,This->lpInFormat->biHeight,
290 This->lpOutFormat,This->lpOutBuffer,This->x,This->y,
293 ICDecompress(This->hic, 0, This->lpInFormat, This->lpInBuffer,
294 This->lpOutFormat, This->lpOutBuffer);
297 } /* for (lNext < lPos) */
298 } /* if (This->lCurrentFrame != lPos) */
300 return (This->hic == NULL ? This->lpInFormat : This->lpOutFormat);
303 static HRESULT WINAPI IGetFrame_fnBegin(IGetFrame *iface, LONG lStart,
304 LONG lEnd, LONG lRate)
306 ICOM_THIS(IGetFrameImpl,iface);
308 TRACE("(%p,%ld,%ld,%ld)\n", iface, lStart, lEnd, lRate);
310 This->bFixedStream = TRUE;
312 return (IGetFrame_GetFrame(iface, lStart) ? AVIERR_OK : AVIERR_ERROR);
315 static HRESULT WINAPI IGetFrame_fnEnd(IGetFrame *iface)
317 ICOM_THIS(IGetFrameImpl,iface);
319 TRACE("(%p)\n", iface);
321 This->bFixedStream = FALSE;
326 static HRESULT WINAPI IGetFrame_fnSetFormat(IGetFrame *iface,
327 LPBITMAPINFOHEADER lpbiWanted,
328 LPVOID lpBits, INT x, INT y,
331 ICOM_THIS(IGetFrameImpl,iface);
333 AVISTREAMINFOW sInfo;
334 LPBITMAPINFOHEADER lpbi = lpbiWanted;
335 BOOL bBestDisplay = FALSE;
337 TRACE("(%p,%p,%p,%d,%d,%d,%d)\n", iface, lpbiWanted, lpBits,
340 if (This->pStream == NULL)
343 if ((LONG)lpbiWanted == AVIGETFRAMEF_BESTDISPLAYFMT) {
348 IAVIStream_Info(This->pStream, &sInfo, sizeof(sInfo));
349 if (sInfo.fccType != streamtypeVIDEO)
350 return AVIERR_UNSUPPORTED;
352 This->bFormatChanges =
353 (sInfo.dwFlags & AVISTREAMINFO_FORMATCHANGES ? TRUE : FALSE );
354 This->dwFormatChangeCount = sInfo.dwFormatChangeCount;
355 This->dwEditCount = sInfo.dwEditCount;
356 This->lCurrentFrame = -1;
358 /* get input format from stream */
359 if (This->lpInFormat == NULL) {
362 This->cbInBuffer = (LONG)sInfo.dwSuggestedBufferSize;
363 if (This->cbInBuffer == 0)
364 This->cbInBuffer = 1024;
366 IAVIStream_ReadFormat(This->pStream, sInfo.dwStart,
367 NULL, &This->cbInFormat);
370 (LPBITMAPINFOHEADER)GlobalAllocPtr(GHND, This->cbInFormat + This->cbInBuffer);
371 if (This->lpInFormat == NULL) {
372 AVIFILE_CloseCompressor(This);
373 return AVIERR_MEMORY;
376 hr = IAVIStream_ReadFormat(This->pStream, sInfo.dwStart, This->lpInFormat, &This->cbInFormat);
378 AVIFILE_CloseCompressor(This);
382 This->lpInBuffer = ((LPBYTE)This->lpInFormat) + This->cbInFormat;
385 /* check input format */
386 if (This->lpInFormat->biClrUsed == 0 && This->lpInFormat->biBitCount <= 8)
387 This->lpInFormat->biClrUsed = 1u << This->lpInFormat->biBitCount;
388 if (This->lpInFormat->biSizeImage == 0 &&
389 This->lpInFormat->biCompression == BI_RGB) {
390 This->lpInFormat->biSizeImage =
391 DIBWIDTHBYTES(*This->lpInFormat) * This->lpInFormat->biHeight;
394 /* only to pass through? */
395 if (This->lpInFormat->biCompression == BI_RGB && lpBits == NULL) {
397 (lpbi->biCompression == BI_RGB &&
398 lpbi->biWidth == This->lpInFormat->biWidth &&
399 lpbi->biHeight == This->lpInFormat->biHeight &&
400 lpbi->biBitCount == This->lpInFormat->biBitCount)) {
401 This->lpOutFormat = This->lpInFormat;
402 This->lpOutBuffer = DIBPTR(This->lpInFormat);
407 /* need memory for output format? */
408 if (This->lpOutFormat == NULL) {
410 (LPBITMAPINFOHEADER)GlobalAllocPtr(GHND, sizeof(BITMAPINFOHEADER)
411 + 256 * sizeof(RGBQUAD));
412 if (This->lpOutFormat == NULL) {
413 AVIFILE_CloseCompressor(This);
414 return AVIERR_MEMORY;
418 /* need handle to video compressor */
419 if (This->hic == NULL) {
422 if (This->lpInFormat->biCompression == BI_RGB)
423 fccHandler = comptypeDIB;
424 else if (This->lpInFormat->biCompression == BI_RLE8)
425 fccHandler = mmioFOURCC('R','L','E',' ');
427 fccHandler = sInfo.fccHandler;
430 if (lpbi->biWidth == 0)
431 lpbi->biWidth = This->lpInFormat->biWidth;
432 if (lpbi->biHeight == 0)
433 lpbi->biHeight = This->lpInFormat->biHeight;
436 This->hic = ICLocate(ICTYPE_VIDEO, fccHandler, This->lpInFormat, lpbi, ICMODE_DECOMPRESS);
437 if (This->hic == NULL) {
438 AVIFILE_CloseCompressor(This);
439 return AVIERR_NOCOMPRESSOR;
443 /* output format given? */
445 /* check the given output format ... */
446 if (lpbi->biClrUsed == 0 && lpbi->biBitCount <= 8)
447 lpbi->biClrUsed = 1u << lpbi->biBitCount;
449 /* ... and remember it */
450 memcpy(This->lpOutFormat, lpbi,
451 lpbi->biSize + lpbi->biClrUsed * sizeof(RGBQUAD));
452 if (lpbi->biBitCount <= 8)
453 ICDecompressGetPalette(This->hic, This->lpInFormat, This->lpOutFormat);
458 ICGetDisplayFormat(This->hic, This->lpInFormat,
459 This->lpOutFormat, 0, dx, dy);
460 } else if (ICDecompressGetFormat(This->hic, This->lpInFormat,
461 This->lpOutFormat) < 0) {
462 AVIFILE_CloseCompressor(This);
463 return AVIERR_NOCOMPRESSOR;
466 /* check output format */
467 if (This->lpOutFormat->biClrUsed == 0 &&
468 This->lpOutFormat->biBitCount <= 8)
469 This->lpOutFormat->biClrUsed = 1u << This->lpOutFormat->biBitCount;
470 if (This->lpOutFormat->biSizeImage == 0 &&
471 This->lpOutFormat->biCompression == BI_RGB) {
472 This->lpOutFormat->biSizeImage =
473 DIBWIDTHBYTES(*This->lpOutFormat) * This->lpOutFormat->biHeight;
476 if (lpBits == NULL) {
477 register DWORD size = This->lpOutFormat->biClrUsed * sizeof(RGBQUAD);
479 size += This->lpOutFormat->biSize + This->lpOutFormat->biSizeImage;
481 (LPBITMAPINFOHEADER)GlobalReAllocPtr(This->lpOutFormat, size, GMEM_MOVEABLE);
482 if (This->lpOutFormat == NULL) {
483 AVIFILE_CloseCompressor(This);
484 return AVIERR_MEMORY;
486 This->lpOutBuffer = DIBPTR(This->lpOutFormat);
488 This->lpOutBuffer = lpBits;
490 /* for user size was irrelevant */
492 dx = This->lpOutFormat->biWidth;
494 dy = This->lpOutFormat->biHeight;
496 /* need to resize? */
497 if (x != 0 || y != 0) {
498 if (dy == This->lpOutFormat->biHeight &&
499 dx == This->lpOutFormat->biWidth)
500 This->bResize = FALSE;
502 This->bResize = TRUE;
511 if (ICDecompressExBegin(This->hic,0,This->lpInFormat,This->lpInBuffer,0,
512 0,This->lpInFormat->biWidth,
513 This->lpInFormat->biHeight,This->lpOutFormat,
514 This->lpOutBuffer, x, y, dx, dy) == ICERR_OK)
516 } else if (ICDecompressBegin(This->hic, This->lpInFormat,
517 This->lpOutFormat) == ICERR_OK)
520 AVIFILE_CloseCompressor(This);
522 return AVIERR_COMPRESSOR;
526 /***********************************************************************/