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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
29 #include "avifile_private.h"
31 #include "wine/debug.h"
33 WINE_DEFAULT_DEBUG_CHANNEL(avifile);
36 #define DIBPTR(lp) ((LPBYTE)(lp) + (lp)->biSize + \
37 (lp)->biClrUsed * sizeof(RGBQUAD))
40 /***********************************************************************/
42 static HRESULT WINAPI IGetFrame_fnQueryInterface(IGetFrame *iface,
43 REFIID refiid, LPVOID *obj);
44 static ULONG WINAPI IGetFrame_fnAddRef(IGetFrame *iface);
45 static ULONG WINAPI IGetFrame_fnRelease(IGetFrame *iface);
46 static LPVOID WINAPI IGetFrame_fnGetFrame(IGetFrame *iface, LONG lPos);
47 static HRESULT WINAPI IGetFrame_fnBegin(IGetFrame *iface, LONG lStart,
48 LONG lEnd, LONG lRate);
49 static HRESULT WINAPI IGetFrame_fnEnd(IGetFrame *iface);
50 static HRESULT WINAPI IGetFrame_fnSetFormat(IGetFrame *iface,
51 LPBITMAPINFOHEADER lpbi,
52 LPVOID lpBits, INT x, INT y,
55 static const struct IGetFrameVtbl igetframeVtbl = {
56 IGetFrame_fnQueryInterface,
65 typedef struct _IGetFrameImpl {
67 const IGetFrameVtbl *lpVtbl;
76 LPBITMAPINFOHEADER lpInFormat;
80 LPBITMAPINFOHEADER lpOutFormat;
91 DWORD dwFormatChangeCount;
95 /***********************************************************************/
97 static void AVIFILE_CloseCompressor(IGetFrameImpl *This)
99 if (This->lpInFormat != This->lpOutFormat) {
100 HeapFree(GetProcessHeap(), 0, This->lpOutFormat);
101 This->lpOutFormat = NULL;
103 HeapFree(GetProcessHeap(), 0, This->lpInFormat);
104 This->lpInFormat = NULL;
105 if (This->hic != NULL) {
107 ICDecompressExEnd(This->hic);
109 ICDecompressEnd(This->hic);
115 PGETFRAME AVIFILE_CreateGetFrame(PAVISTREAM pStream)
119 /* check parameter */
123 pg = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IGetFrameImpl));
125 pg->lpVtbl = &igetframeVtbl;
127 pg->lCurrentFrame = -1;
128 pg->pStream = pStream;
129 IAVIStream_AddRef(pStream);
132 return (PGETFRAME)pg;
135 static HRESULT WINAPI IGetFrame_fnQueryInterface(IGetFrame *iface,
136 REFIID refiid, LPVOID *obj)
138 IGetFrameImpl *This = (IGetFrameImpl *)iface;
140 TRACE("(%p,%s,%p)\n", This, debugstr_guid(refiid), obj);
142 if (IsEqualGUID(&IID_IUnknown, refiid) ||
143 IsEqualGUID(&IID_IGetFrame, refiid)) {
148 return OLE_E_ENUM_NOMORE;
151 static ULONG WINAPI IGetFrame_fnAddRef(IGetFrame *iface)
153 IGetFrameImpl *This = (IGetFrameImpl *)iface;
154 ULONG ref = InterlockedIncrement(&This->ref);
156 TRACE("(%p)\n", iface);
161 static ULONG WINAPI IGetFrame_fnRelease(IGetFrame *iface)
163 IGetFrameImpl *This = (IGetFrameImpl *)iface;
164 ULONG ref = InterlockedDecrement(&This->ref);
166 TRACE("(%p)\n", iface);
169 AVIFILE_CloseCompressor(This);
170 if (This->pStream != NULL) {
171 IAVIStream_Release(This->pStream);
172 This->pStream = NULL;
175 HeapFree(GetProcessHeap(), 0, iface);
182 static LPVOID WINAPI IGetFrame_fnGetFrame(IGetFrame *iface, LONG lPos)
184 IGetFrameImpl *This = (IGetFrameImpl *)iface;
189 TRACE("(%p,%d)\n", iface, lPos);
191 /* We don't want negative start values! -- marks invalid buffer content */
196 if (This->pStream == NULL)
198 if (This->lpInFormat == NULL)
201 /* Could stream have changed? */
202 if (! This->bFixedStream) {
203 AVISTREAMINFOW sInfo;
205 IAVIStream_Info(This->pStream, &sInfo, sizeof(sInfo));
207 if (sInfo.dwEditCount != This->dwEditCount) {
208 This->dwEditCount = sInfo.dwEditCount;
209 This->lCurrentFrame = -1;
212 if (sInfo.dwFormatChangeCount != This->dwFormatChangeCount) {
213 /* stream has changed */
214 if (This->lpOutFormat != NULL) {
217 memcpy(&bi, This->lpOutFormat, sizeof(bi));
218 AVIFILE_CloseCompressor(This);
220 if (FAILED(IGetFrame_SetFormat(iface, &bi, NULL, 0, 0, -1, -1))) {
221 if (FAILED(IGetFrame_SetFormat(iface, NULL, NULL, 0, 0, -1, -1)))
224 } else if (FAILED(IGetFrame_SetFormat(iface, NULL, NULL, 0, 0, -1, -1)))
229 if (lPos != This->lCurrentFrame) {
230 LONG lNext = IAVIStream_FindSample(This->pStream,lPos,FIND_KEY|FIND_PREV);
233 return NULL; /* frame doesn't exist */
234 if (lNext <= This->lCurrentFrame && This->lCurrentFrame < lPos)
235 lNext = This->lCurrentFrame + 1;
237 for (; lNext <= lPos; lNext++) {
238 /* new format for this frame? */
239 if (This->bFormatChanges) {
240 IAVIStream_ReadFormat(This->pStream, lNext,
241 This->lpInFormat, &This->cbInFormat);
242 if (This->lpOutFormat != NULL) {
243 if (This->lpOutFormat->biBitCount <= 8)
244 ICDecompressGetPalette(This->hic, This->lpInFormat,
249 /* read input frame */
250 while (FAILED(AVIStreamRead(This->pStream, lNext, 1, This->lpInBuffer,
251 This->cbInBuffer, &readBytes, &readSamples))) {
252 /* not enough memory for input buffer? */
254 if (FAILED(AVIStreamSampleSize(This->pStream, lNext, &readBytes)))
255 return NULL; /* bad thing, but bad things will happen */
256 if (readBytes <= 0) {
257 ERR(": IAVIStream::REad doesn't return needed bytes!\n");
261 /* IAVIStream::Read failed because of other reasons not buffersize? */
262 if (This->cbInBuffer >= readBytes)
264 This->cbInBuffer = This->cbInFormat + readBytes;
265 This->lpInFormat = HeapReAlloc(GetProcessHeap(), 0, This->lpInFormat, This->cbInBuffer);
266 if (This->lpInFormat == NULL)
267 return NULL; /* out of memory */
268 This->lpInBuffer = (BYTE*)This->lpInFormat + This->cbInFormat;
271 if (readSamples != 1) {
272 ERR(": no frames read\n");
275 if (readBytes != 0) {
276 This->lpInFormat->biSizeImage = readBytes;
278 /* nothing to decompress? */
279 if (This->hic == NULL) {
280 This->lCurrentFrame = lPos;
281 return This->lpInFormat;
285 ICDecompressEx(This->hic,0,This->lpInFormat,This->lpInBuffer,0,0,
286 This->lpInFormat->biWidth,This->lpInFormat->biHeight,
287 This->lpOutFormat,This->lpOutBuffer,This->x,This->y,
290 ICDecompress(This->hic, 0, This->lpInFormat, This->lpInBuffer,
291 This->lpOutFormat, This->lpOutBuffer);
294 } /* for (lNext < lPos) */
295 } /* if (This->lCurrentFrame != lPos) */
297 return (This->hic == NULL ? This->lpInFormat : This->lpOutFormat);
300 static HRESULT WINAPI IGetFrame_fnBegin(IGetFrame *iface, LONG lStart,
301 LONG lEnd, LONG lRate)
303 IGetFrameImpl *This = (IGetFrameImpl *)iface;
305 TRACE("(%p,%d,%d,%d)\n", iface, lStart, lEnd, lRate);
307 This->bFixedStream = TRUE;
309 return (IGetFrame_GetFrame(iface, lStart) ? AVIERR_OK : AVIERR_ERROR);
312 static HRESULT WINAPI IGetFrame_fnEnd(IGetFrame *iface)
314 IGetFrameImpl *This = (IGetFrameImpl *)iface;
316 TRACE("(%p)\n", iface);
318 This->bFixedStream = FALSE;
323 static HRESULT WINAPI IGetFrame_fnSetFormat(IGetFrame *iface,
324 LPBITMAPINFOHEADER lpbiWanted,
325 LPVOID lpBits, INT x, INT y,
328 IGetFrameImpl *This = (IGetFrameImpl *)iface;
330 AVISTREAMINFOW sInfo;
331 LPBITMAPINFOHEADER lpbi = lpbiWanted;
332 BOOL bBestDisplay = FALSE;
334 TRACE("(%p,%p,%p,%d,%d,%d,%d)\n", iface, lpbiWanted, lpBits,
337 if (This->pStream == NULL)
340 if (lpbiWanted == (LPBITMAPINFOHEADER)AVIGETFRAMEF_BESTDISPLAYFMT) {
345 IAVIStream_Info(This->pStream, &sInfo, sizeof(sInfo));
346 if (sInfo.fccType != streamtypeVIDEO)
347 return AVIERR_UNSUPPORTED;
349 This->bFormatChanges =
350 (sInfo.dwFlags & AVISTREAMINFO_FORMATCHANGES ? TRUE : FALSE );
351 This->dwFormatChangeCount = sInfo.dwFormatChangeCount;
352 This->dwEditCount = sInfo.dwEditCount;
353 This->lCurrentFrame = -1;
355 /* get input format from stream */
356 if (This->lpInFormat == NULL) {
359 This->cbInBuffer = (LONG)sInfo.dwSuggestedBufferSize;
360 if (This->cbInBuffer == 0)
361 This->cbInBuffer = 1024;
363 IAVIStream_ReadFormat(This->pStream, sInfo.dwStart,
364 NULL, &This->cbInFormat);
366 This->lpInFormat = HeapAlloc(GetProcessHeap(), 0, This->cbInFormat + This->cbInBuffer);
367 if (This->lpInFormat == NULL) {
368 AVIFILE_CloseCompressor(This);
369 return AVIERR_MEMORY;
372 hr = IAVIStream_ReadFormat(This->pStream, sInfo.dwStart, This->lpInFormat, &This->cbInFormat);
374 AVIFILE_CloseCompressor(This);
378 This->lpInBuffer = ((LPBYTE)This->lpInFormat) + This->cbInFormat;
381 /* check input format */
382 if (This->lpInFormat->biClrUsed == 0 && This->lpInFormat->biBitCount <= 8)
383 This->lpInFormat->biClrUsed = 1u << This->lpInFormat->biBitCount;
384 if (This->lpInFormat->biSizeImage == 0 &&
385 This->lpInFormat->biCompression == BI_RGB) {
386 This->lpInFormat->biSizeImage =
387 DIBWIDTHBYTES(*This->lpInFormat) * This->lpInFormat->biHeight;
390 /* only to pass through? */
391 if (This->lpInFormat->biCompression == BI_RGB && lpBits == NULL) {
393 (lpbi->biCompression == BI_RGB &&
394 lpbi->biWidth == This->lpInFormat->biWidth &&
395 lpbi->biHeight == This->lpInFormat->biHeight &&
396 lpbi->biBitCount == This->lpInFormat->biBitCount)) {
397 This->lpOutFormat = This->lpInFormat;
398 This->lpOutBuffer = DIBPTR(This->lpInFormat);
403 /* need memory for output format? */
404 if (This->lpOutFormat == NULL) {
406 HeapAlloc(GetProcessHeap(), 0, sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
407 if (This->lpOutFormat == NULL) {
408 AVIFILE_CloseCompressor(This);
409 return AVIERR_MEMORY;
413 /* need handle to video compressor */
414 if (This->hic == NULL) {
417 if (This->lpInFormat->biCompression == BI_RGB)
418 fccHandler = comptypeDIB;
419 else if (This->lpInFormat->biCompression == BI_RLE8)
420 fccHandler = mmioFOURCC('R','L','E',' ');
422 fccHandler = sInfo.fccHandler;
425 if (lpbi->biWidth == 0)
426 lpbi->biWidth = This->lpInFormat->biWidth;
427 if (lpbi->biHeight == 0)
428 lpbi->biHeight = This->lpInFormat->biHeight;
431 This->hic = ICLocate(ICTYPE_VIDEO, fccHandler, This->lpInFormat, lpbi, ICMODE_DECOMPRESS);
432 if (This->hic == NULL) {
433 AVIFILE_CloseCompressor(This);
434 return AVIERR_NOCOMPRESSOR;
438 /* output format given? */
440 /* check the given output format ... */
441 if (lpbi->biClrUsed == 0 && lpbi->biBitCount <= 8)
442 lpbi->biClrUsed = 1u << lpbi->biBitCount;
444 /* ... and remember it */
445 memcpy(This->lpOutFormat, lpbi,
446 lpbi->biSize + lpbi->biClrUsed * sizeof(RGBQUAD));
447 if (lpbi->biBitCount <= 8)
448 ICDecompressGetPalette(This->hic, This->lpInFormat, This->lpOutFormat);
453 ICGetDisplayFormat(This->hic, This->lpInFormat,
454 This->lpOutFormat, 0, dx, dy);
455 } else if (ICDecompressGetFormat(This->hic, This->lpInFormat,
456 This->lpOutFormat) < 0) {
457 AVIFILE_CloseCompressor(This);
458 return AVIERR_NOCOMPRESSOR;
461 /* check output format */
462 if (This->lpOutFormat->biClrUsed == 0 &&
463 This->lpOutFormat->biBitCount <= 8)
464 This->lpOutFormat->biClrUsed = 1u << This->lpOutFormat->biBitCount;
465 if (This->lpOutFormat->biSizeImage == 0 &&
466 This->lpOutFormat->biCompression == BI_RGB) {
467 This->lpOutFormat->biSizeImage =
468 DIBWIDTHBYTES(*This->lpOutFormat) * This->lpOutFormat->biHeight;
471 if (lpBits == NULL) {
472 register DWORD size = This->lpOutFormat->biClrUsed * sizeof(RGBQUAD);
474 size += This->lpOutFormat->biSize + This->lpOutFormat->biSizeImage;
475 This->lpOutFormat = HeapReAlloc(GetProcessHeap(), 0, This->lpOutFormat, size);
476 if (This->lpOutFormat == NULL) {
477 AVIFILE_CloseCompressor(This);
478 return AVIERR_MEMORY;
480 This->lpOutBuffer = DIBPTR(This->lpOutFormat);
482 This->lpOutBuffer = lpBits;
484 /* for user size was irrelevant */
486 dx = This->lpOutFormat->biWidth;
488 dy = This->lpOutFormat->biHeight;
490 /* need to resize? */
491 if (x != 0 || y != 0) {
492 if (dy == This->lpOutFormat->biHeight &&
493 dx == This->lpOutFormat->biWidth)
494 This->bResize = FALSE;
496 This->bResize = TRUE;
505 if (ICDecompressExBegin(This->hic,0,This->lpInFormat,This->lpInBuffer,0,
506 0,This->lpInFormat->biWidth,
507 This->lpInFormat->biHeight,This->lpOutFormat,
508 This->lpOutBuffer, x, y, dx, dy) == ICERR_OK)
510 } else if (ICDecompressBegin(This->hic, This->lpInFormat,
511 This->lpOutFormat) == ICERR_OK)
514 AVIFILE_CloseCompressor(This);
516 return AVIERR_COMPRESSOR;
520 /***********************************************************************/