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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 #define COM_NO_WINDOWS_H
27 #include "avifile_private.h"
29 #include "wine/debug.h"
31 WINE_DEFAULT_DEBUG_CHANNEL(avifile);
34 #define DIBPTR(lp) ((LPBYTE)(lp) + (lp)->biSize + \
35 (lp)->biClrUsed * sizeof(RGBQUAD))
38 /***********************************************************************/
40 static HRESULT WINAPI IGetFrame_fnQueryInterface(IGetFrame *iface,
41 REFIID refiid, LPVOID *obj);
42 static ULONG WINAPI IGetFrame_fnAddRef(IGetFrame *iface);
43 static ULONG WINAPI IGetFrame_fnRelease(IGetFrame *iface);
44 static LPVOID WINAPI IGetFrame_fnGetFrame(IGetFrame *iface, LONG lPos);
45 static HRESULT WINAPI IGetFrame_fnBegin(IGetFrame *iface, LONG lStart,
46 LONG lEnd, LONG lRate);
47 static HRESULT WINAPI IGetFrame_fnEnd(IGetFrame *iface);
48 static HRESULT WINAPI IGetFrame_fnSetFormat(IGetFrame *iface,
49 LPBITMAPINFOHEADER lpbi,
50 LPVOID lpBits, INT x, INT y,
53 struct ICOM_VTABLE(IGetFrame) igetframeVtbl = {
54 ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
55 IGetFrame_fnQueryInterface,
64 typedef struct _IGetFrameImpl {
66 ICOM_VFIELD(IGetFrame);
75 LPBITMAPINFOHEADER lpInFormat;
79 LPBITMAPINFOHEADER lpOutFormat;
90 DWORD dwFormatChangeCount;
94 /***********************************************************************/
96 static void AVIFILE_CloseCompressor(IGetFrameImpl *This)
98 if (This->lpOutFormat != NULL && This->lpInFormat != This->lpOutFormat) {
99 GlobalFreePtr(This->lpOutFormat);
100 This->lpOutFormat = NULL;
102 if (This->lpInFormat != NULL) {
103 GlobalFreePtr(This->lpInFormat);
104 This->lpInFormat = NULL;
106 if (This->hic != NULL) {
108 ICDecompressExEnd(This->hic);
110 ICDecompressEnd(This->hic);
116 PGETFRAME AVIFILE_CreateGetFrame(PAVISTREAM pStream)
120 /* check parameter */
124 pg = (IGetFrameImpl*)LocalAlloc(LPTR, sizeof(IGetFrameImpl));
126 ICOM_VTBL(pg) = &igetframeVtbl;
128 pg->lCurrentFrame = -1;
129 pg->pStream = pStream;
130 IAVIStream_AddRef(pStream);
133 return (PGETFRAME)pg;
136 static HRESULT WINAPI IGetFrame_fnQueryInterface(IGetFrame *iface,
137 REFIID refiid, LPVOID *obj)
139 ICOM_THIS(IGetFrameImpl,iface);
141 TRACE("(%p,%s,%p)\n", This, debugstr_guid(refiid), obj);
143 if (IsEqualGUID(&IID_IUnknown, refiid) ||
144 IsEqualGUID(&IID_IGetFrame, refiid)) {
149 return OLE_E_ENUM_NOMORE;
152 static ULONG WINAPI IGetFrame_fnAddRef(IGetFrame *iface)
154 ICOM_THIS(IGetFrameImpl,iface);
156 TRACE("(%p)\n", iface);
158 return ++(This->ref);
161 static ULONG WINAPI IGetFrame_fnRelease(IGetFrame *iface)
163 ICOM_THIS(IGetFrameImpl,iface);
165 TRACE("(%p)\n", iface);
167 if (!--(This->ref)) {
168 AVIFILE_CloseCompressor(This);
169 if (This->pStream != NULL) {
170 AVIStreamRelease(This->pStream);
171 This->pStream = NULL;
174 LocalFree((HLOCAL)iface);
181 static LPVOID WINAPI IGetFrame_fnGetFrame(IGetFrame *iface, LONG lPos)
183 ICOM_THIS(IGetFrameImpl,iface);
188 TRACE("(%p,%ld)\n", iface, lPos);
191 if (This->pStream == NULL)
193 if (This->lpInFormat == NULL)
196 /* Could stream have changed? */
197 if (! This->bFixedStream) {
198 AVISTREAMINFOW sInfo;
200 IAVIStream_Info(This->pStream, &sInfo, sizeof(sInfo));
202 if (sInfo.dwEditCount != This->dwEditCount) {
203 This->dwEditCount = sInfo.dwEditCount;
204 This->lCurrentFrame = -1;
207 if (sInfo.dwFormatChangeCount != This->dwFormatChangeCount) {
208 /* stream has changed */
209 if (This->lpOutFormat != NULL) {
212 memcpy(&bi, This->lpOutFormat, sizeof(bi));
213 AVIFILE_CloseCompressor(This);
215 if (FAILED(IGetFrame_SetFormat(iface, &bi, NULL, 0, 0, -1, -1))) {
216 if (FAILED(IGetFrame_SetFormat(iface, NULL, NULL, 0, 0, -1, -1)))
219 } else if (FAILED(IGetFrame_SetFormat(iface, NULL, NULL, 0, 0, -1, -1)))
224 if (lPos != This->lCurrentFrame) {
225 LONG lNext = AVIStreamFindSample(This->pStream, lPos, FIND_KEY|FIND_PREV);
229 if (lNext <= This->lCurrentFrame && This->lCurrentFrame < lPos)
232 for (; lNext < lPos; lNext++) {
233 /* new format for this frame? */
234 if (This->bFormatChanges) {
235 AVIStreamReadFormat(This->pStream, lNext, This->lpInFormat, &This->cbInFormat);
236 if (This->lpOutFormat != NULL) {
237 if (This->lpOutFormat->biBitCount <= 8)
238 ICDecompressGetPalette(This->hic, This->lpInFormat,
243 /* read input frame */
244 while (FAILED(AVIStreamRead(This->pStream, lNext, 1, This->lpInBuffer,
245 This->cbInBuffer, &readBytes, &readSamples))) {
246 /* not enough memory for input buffer? */
248 if (FAILED(AVIStreamSampleSize(This->pStream, lNext, &readBytes)))
250 if (This->cbInBuffer >= readBytes)
252 This->lpInFormat = GlobalReAllocPtr(This->lpInFormat, This->cbInFormat + readBytes, 0);
253 if (This->lpInFormat == NULL)
255 This->lpInBuffer = (BYTE*)This->lpInFormat + This->cbInFormat;
258 if (readSamples != 1)
260 if (readBytes != 0) {
261 This->lpInFormat->biSizeImage = readBytes;
263 /* nothing to decompress? */
264 if (This->hic == NULL) {
265 This->lCurrentFrame = lPos;
266 return This->lpInFormat;
270 ICDecompressEx(This->hic,0,This->lpInFormat,This->lpInBuffer,0,0,
271 This->lpInFormat->biWidth,This->lpInFormat->biHeight,
272 This->lpOutFormat,This->lpOutBuffer,This->x,This->y,
275 ICDecompress(This->hic, 0, This->lpInFormat, This->lpInBuffer,
276 This->lpOutFormat, This->lpOutBuffer);
279 } /* for (lNext < lPos) */
280 } /* if (This->lCurrentFrame != lPos) */
282 return (This->hic == NULL ? This->lpInFormat : This->lpOutFormat);
285 static HRESULT WINAPI IGetFrame_fnBegin(IGetFrame *iface, LONG lStart,
286 LONG lEnd, LONG lRate)
288 ICOM_THIS(IGetFrameImpl,iface);
290 TRACE("(%p,%ld,%ld,%ld)\n", iface, lStart, lEnd, lRate);
292 This->bFixedStream = TRUE;
294 return (IGetFrame_GetFrame(iface, lStart) ? AVIERR_OK : AVIERR_ERROR);
297 static HRESULT WINAPI IGetFrame_fnEnd(IGetFrame *iface)
299 ICOM_THIS(IGetFrameImpl,iface);
301 TRACE("(%p)\n", iface);
303 This->bFixedStream = FALSE;
308 static HRESULT WINAPI IGetFrame_fnSetFormat(IGetFrame *iface,
309 LPBITMAPINFOHEADER lpbiWanted,
310 LPVOID lpBits, INT x, INT y,
313 ICOM_THIS(IGetFrameImpl,iface);
315 AVISTREAMINFOW sInfo;
316 LPBITMAPINFOHEADER lpbi = lpbiWanted;
317 BOOL bBestDisplay = FALSE;
319 TRACE("(%p,%p,%p,%d,%d,%d,%d)\n", iface, lpbiWanted, lpBits,
322 if (This->pStream == NULL)
325 if ((LONG)lpbiWanted == AVIGETFRAMEF_BESTDISPLAYFMT) {
330 IAVIStream_Info(This->pStream, &sInfo, sizeof(sInfo));
331 if (sInfo.fccType != streamtypeVIDEO)
332 return AVIERR_UNSUPPORTED;
334 This->bFormatChanges =
335 (sInfo.dwFlags & AVISTREAMINFO_FORMATCHANGES ? TRUE : FALSE );
336 This->dwFormatChangeCount = sInfo.dwFormatChangeCount;
337 This->dwEditCount = sInfo.dwEditCount;
338 This->lCurrentFrame = -1;
340 /* get input format from stream */
341 if (This->lpInFormat == NULL) {
344 This->cbInBuffer = sInfo.dwSuggestedBufferSize;
345 if (This->cbInBuffer == 0)
346 This->cbInBuffer = 1024;
348 AVIStreamFormatSize(This->pStream, sInfo.dwStart, &This->cbInFormat);
351 (LPBITMAPINFOHEADER)GlobalAllocPtr(GHND, This->cbInFormat + This->cbInBuffer);
352 if (This->lpInFormat == NULL) {
353 AVIFILE_CloseCompressor(This);
354 return AVIERR_MEMORY;
357 hr = AVIStreamReadFormat(This->pStream, sInfo.dwStart, This->lpInFormat, &This->cbInFormat);
359 AVIFILE_CloseCompressor(This);
363 This->lpInBuffer = ((LPBYTE)This->lpInFormat) + This->cbInFormat;
366 /* check input format */
367 if (This->lpInFormat->biClrUsed == 0 && This->lpInFormat->biBitCount <= 8)
368 This->lpInFormat->biClrUsed = 1u << This->lpInFormat->biBitCount;
369 if (This->lpInFormat->biSizeImage == 0 &&
370 This->lpInFormat->biCompression == BI_RGB) {
371 This->lpInFormat->biSizeImage =
372 DIBWIDTHBYTES(*This->lpInFormat) * This->lpInFormat->biHeight;
375 /* only to pass through? */
376 if (This->lpInFormat->biCompression == BI_RGB && lpBits == NULL) {
378 (lpbi->biCompression == BI_RGB &&
379 lpbi->biWidth == This->lpInFormat->biWidth &&
380 lpbi->biHeight == This->lpInFormat->biHeight &&
381 lpbi->biBitCount == This->lpInFormat->biBitCount)) {
382 This->lpOutFormat = This->lpInFormat;
383 This->lpOutBuffer = DIBPTR(This->lpInFormat);
388 /* need memory for output format? */
389 if (This->lpOutFormat == NULL) {
391 (LPBITMAPINFOHEADER)GlobalAllocPtr(GHND, sizeof(BITMAPINFOHEADER)
392 + 256 * sizeof(RGBQUAD));
393 if (This->lpOutFormat == NULL) {
394 AVIFILE_CloseCompressor(This);
395 return AVIERR_MEMORY;
399 /* need handle to video compressor */
400 if (This->hic == NULL) {
403 if (This->lpInFormat->biCompression == BI_RGB)
404 fccHandler = comptypeDIB;
405 else if (This->lpInFormat->biCompression == BI_RLE8)
406 fccHandler = mmioFOURCC('R','L','E',' ');
408 fccHandler = sInfo.fccHandler;
411 if (lpbi->biWidth == 0)
412 lpbi->biWidth = This->lpInFormat->biWidth;
413 if (lpbi->biHeight == 0)
414 lpbi->biHeight = This->lpInFormat->biHeight;
417 This->hic = ICLocate(ICTYPE_VIDEO, fccHandler, This->lpInFormat, lpbi, ICMODE_DECOMPRESS);
418 if (This->hic == NULL) {
419 AVIFILE_CloseCompressor(This);
420 return AVIERR_NOCOMPRESSOR;
424 /* output format given? */
426 /* check the given output format ... */
427 if (lpbi->biClrUsed == 0 && lpbi->biBitCount <= 8)
428 lpbi->biClrUsed = 1u << lpbi->biBitCount;
430 /* ... and remember it */
431 memcpy(This->lpOutFormat, lpbi,
432 lpbi->biSize + lpbi->biClrUsed * sizeof(RGBQUAD));
433 if (lpbi->biBitCount <= 8)
434 ICDecompressGetPalette(This->hic, This->lpInFormat, This->lpOutFormat);
439 ICGetDisplayFormat(This->hic, This->lpInFormat,
440 This->lpOutFormat, 0, dx, dy);
441 } else if (ICDecompressGetFormat(This->hic, This->lpInFormat,
442 This->lpOutFormat) < 0) {
443 AVIFILE_CloseCompressor(This);
444 return AVIERR_NOCOMPRESSOR;
447 /* check output format */
448 if (This->lpOutFormat->biClrUsed == 0 &&
449 This->lpOutFormat->biBitCount <= 8)
450 This->lpOutFormat->biClrUsed = 1u << This->lpOutFormat->biBitCount;
451 if (This->lpOutFormat->biSizeImage == 0 &&
452 This->lpOutFormat->biCompression == BI_RGB) {
453 This->lpOutFormat->biSizeImage =
454 DIBWIDTHBYTES(*This->lpOutFormat) * This->lpOutFormat->biHeight;
457 if (lpBits == NULL) {
458 register DWORD size = This->lpOutFormat->biClrUsed * sizeof(RGBQUAD);
460 size += This->lpOutFormat->biSize + This->lpOutFormat->biSizeImage;
462 (LPBITMAPINFOHEADER)GlobalReAllocPtr(This->lpOutFormat, size, GMEM_MOVEABLE);
463 if (This->lpOutFormat == NULL) {
464 AVIFILE_CloseCompressor(This);
465 return AVIERR_MEMORY;
467 This->lpOutBuffer = DIBPTR(This->lpOutFormat);
469 This->lpOutBuffer = lpBits;
471 /* for user size was irrelevant */
473 dx = This->lpOutFormat->biWidth;
475 dy = This->lpOutFormat->biHeight;
477 /* need to resize? */
478 if (x != 0 || y != 0) {
479 if (dy == This->lpOutFormat->biHeight &&
480 dx == This->lpOutFormat->biWidth)
481 This->bResize = FALSE;
483 This->bResize = TRUE;
492 if (ICDecompressExBegin(This->hic,0,This->lpInFormat,This->lpInBuffer,0,
493 0,This->lpInFormat->biWidth,
494 This->lpInFormat->biHeight,This->lpOutFormat,
495 This->lpOutBuffer, x, y, dx, dy) == ICERR_OK)
497 } else if (ICDecompressBegin(This->hic, This->lpInFormat,
498 This->lpOutFormat) == ICERR_OK)
501 AVIFILE_CloseCompressor(This);
503 return AVIERR_COMPRESSOR;
507 /***********************************************************************/