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
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 static const struct IGetFrameVtbl igetframeVtbl = {
54 IGetFrame_fnQueryInterface,
63 typedef struct _IGetFrameImpl {
65 const IGetFrameVtbl *lpVtbl;
74 LPBITMAPINFOHEADER lpInFormat;
78 LPBITMAPINFOHEADER lpOutFormat;
89 DWORD dwFormatChangeCount;
93 /***********************************************************************/
95 static void AVIFILE_CloseCompressor(IGetFrameImpl *This)
97 if (This->lpInFormat != This->lpOutFormat) {
98 HeapFree(GetProcessHeap(), 0, This->lpOutFormat);
99 This->lpOutFormat = NULL;
101 HeapFree(GetProcessHeap(), 0, This->lpInFormat);
102 This->lpInFormat = NULL;
103 if (This->hic != NULL) {
105 ICDecompressExEnd(This->hic);
107 ICDecompressEnd(This->hic);
113 PGETFRAME AVIFILE_CreateGetFrame(PAVISTREAM pStream)
117 /* check parameter */
121 pg = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IGetFrameImpl));
123 pg->lpVtbl = &igetframeVtbl;
125 pg->lCurrentFrame = -1;
126 pg->pStream = pStream;
127 IAVIStream_AddRef(pStream);
130 return (PGETFRAME)pg;
133 static HRESULT WINAPI IGetFrame_fnQueryInterface(IGetFrame *iface,
134 REFIID refiid, LPVOID *obj)
136 IGetFrameImpl *This = (IGetFrameImpl *)iface;
138 TRACE("(%p,%s,%p)\n", This, debugstr_guid(refiid), obj);
140 if (IsEqualGUID(&IID_IUnknown, refiid) ||
141 IsEqualGUID(&IID_IGetFrame, refiid)) {
146 return OLE_E_ENUM_NOMORE;
149 static ULONG WINAPI IGetFrame_fnAddRef(IGetFrame *iface)
151 IGetFrameImpl *This = (IGetFrameImpl *)iface;
152 ULONG ref = InterlockedIncrement(&This->ref);
154 TRACE("(%p)\n", iface);
159 static ULONG WINAPI IGetFrame_fnRelease(IGetFrame *iface)
161 IGetFrameImpl *This = (IGetFrameImpl *)iface;
162 ULONG ref = InterlockedDecrement(&This->ref);
164 TRACE("(%p)\n", iface);
167 AVIFILE_CloseCompressor(This);
168 if (This->pStream != NULL) {
169 IAVIStream_Release(This->pStream);
170 This->pStream = NULL;
173 HeapFree(GetProcessHeap(), 0, iface);
180 static LPVOID WINAPI IGetFrame_fnGetFrame(IGetFrame *iface, LONG lPos)
182 IGetFrameImpl *This = (IGetFrameImpl *)iface;
187 TRACE("(%p,%d)\n", iface, lPos);
189 /* We don't want negative start values! -- marks invalid buffer content */
194 if (This->pStream == NULL)
196 if (This->lpInFormat == NULL)
199 /* Could stream have changed? */
200 if (! This->bFixedStream) {
201 AVISTREAMINFOW sInfo;
203 IAVIStream_Info(This->pStream, &sInfo, sizeof(sInfo));
205 if (sInfo.dwEditCount != This->dwEditCount) {
206 This->dwEditCount = sInfo.dwEditCount;
207 This->lCurrentFrame = -1;
210 if (sInfo.dwFormatChangeCount != This->dwFormatChangeCount) {
211 /* stream has changed */
212 if (This->lpOutFormat != NULL) {
215 memcpy(&bi, This->lpOutFormat, sizeof(bi));
216 AVIFILE_CloseCompressor(This);
218 if (FAILED(IGetFrame_SetFormat(iface, &bi, NULL, 0, 0, -1, -1))) {
219 if (FAILED(IGetFrame_SetFormat(iface, NULL, NULL, 0, 0, -1, -1)))
222 } else if (FAILED(IGetFrame_SetFormat(iface, NULL, NULL, 0, 0, -1, -1)))
227 if (lPos != This->lCurrentFrame) {
228 LONG lNext = IAVIStream_FindSample(This->pStream,lPos,FIND_KEY|FIND_PREV);
231 return NULL; /* frame doesn't exist */
232 if (lNext <= This->lCurrentFrame && This->lCurrentFrame < lPos)
233 lNext = This->lCurrentFrame + 1;
235 for (; lNext <= lPos; lNext++) {
236 /* new format for this frame? */
237 if (This->bFormatChanges) {
238 IAVIStream_ReadFormat(This->pStream, lNext,
239 This->lpInFormat, &This->cbInFormat);
240 if (This->lpOutFormat != NULL) {
241 if (This->lpOutFormat->biBitCount <= 8)
242 ICDecompressGetPalette(This->hic, This->lpInFormat,
247 /* read input frame */
248 while (FAILED(AVIStreamRead(This->pStream, lNext, 1, This->lpInBuffer,
249 This->cbInBuffer, &readBytes, &readSamples))) {
250 /* not enough memory for input buffer? */
252 if (FAILED(AVIStreamSampleSize(This->pStream, lNext, &readBytes)))
253 return NULL; /* bad thing, but bad things will happen */
254 if (readBytes <= 0) {
255 ERR(": IAVIStream::REad doesn't return needed bytes!\n");
259 /* IAVIStream::Read failed because of other reasons not buffersize? */
260 if (This->cbInBuffer >= readBytes)
262 This->cbInBuffer = This->cbInFormat + readBytes;
263 This->lpInFormat = HeapReAlloc(GetProcessHeap(), 0, This->lpInFormat, This->cbInBuffer);
264 if (This->lpInFormat == NULL)
265 return NULL; /* out of memory */
266 This->lpInBuffer = (BYTE*)This->lpInFormat + This->cbInFormat;
269 if (readSamples != 1) {
270 ERR(": no frames read\n");
273 if (readBytes != 0) {
274 This->lpInFormat->biSizeImage = readBytes;
276 /* nothing to decompress? */
277 if (This->hic == NULL) {
278 This->lCurrentFrame = lPos;
279 return This->lpInFormat;
283 ICDecompressEx(This->hic,0,This->lpInFormat,This->lpInBuffer,0,0,
284 This->lpInFormat->biWidth,This->lpInFormat->biHeight,
285 This->lpOutFormat,This->lpOutBuffer,This->x,This->y,
288 ICDecompress(This->hic, 0, This->lpInFormat, This->lpInBuffer,
289 This->lpOutFormat, This->lpOutBuffer);
292 } /* for (lNext < lPos) */
293 } /* if (This->lCurrentFrame != lPos) */
295 return (This->hic == NULL ? This->lpInFormat : This->lpOutFormat);
298 static HRESULT WINAPI IGetFrame_fnBegin(IGetFrame *iface, LONG lStart,
299 LONG lEnd, LONG lRate)
301 IGetFrameImpl *This = (IGetFrameImpl *)iface;
303 TRACE("(%p,%d,%d,%d)\n", iface, lStart, lEnd, lRate);
305 This->bFixedStream = TRUE;
307 return (IGetFrame_GetFrame(iface, lStart) ? AVIERR_OK : AVIERR_ERROR);
310 static HRESULT WINAPI IGetFrame_fnEnd(IGetFrame *iface)
312 IGetFrameImpl *This = (IGetFrameImpl *)iface;
314 TRACE("(%p)\n", iface);
316 This->bFixedStream = FALSE;
321 static HRESULT WINAPI IGetFrame_fnSetFormat(IGetFrame *iface,
322 LPBITMAPINFOHEADER lpbiWanted,
323 LPVOID lpBits, INT x, INT y,
326 IGetFrameImpl *This = (IGetFrameImpl *)iface;
328 AVISTREAMINFOW sInfo;
329 LPBITMAPINFOHEADER lpbi = lpbiWanted;
330 BOOL bBestDisplay = FALSE;
332 TRACE("(%p,%p,%p,%d,%d,%d,%d)\n", iface, lpbiWanted, lpBits,
335 if (This->pStream == NULL)
338 if (lpbiWanted == (LPBITMAPINFOHEADER)AVIGETFRAMEF_BESTDISPLAYFMT) {
343 IAVIStream_Info(This->pStream, &sInfo, sizeof(sInfo));
344 if (sInfo.fccType != streamtypeVIDEO)
345 return AVIERR_UNSUPPORTED;
347 This->bFormatChanges =
348 (sInfo.dwFlags & AVISTREAMINFO_FORMATCHANGES ? TRUE : FALSE );
349 This->dwFormatChangeCount = sInfo.dwFormatChangeCount;
350 This->dwEditCount = sInfo.dwEditCount;
351 This->lCurrentFrame = -1;
353 /* get input format from stream */
354 if (This->lpInFormat == NULL) {
357 This->cbInBuffer = (LONG)sInfo.dwSuggestedBufferSize;
358 if (This->cbInBuffer == 0)
359 This->cbInBuffer = 1024;
361 IAVIStream_ReadFormat(This->pStream, sInfo.dwStart,
362 NULL, &This->cbInFormat);
364 This->lpInFormat = HeapAlloc(GetProcessHeap(), 0, This->cbInFormat + This->cbInBuffer);
365 if (This->lpInFormat == NULL) {
366 AVIFILE_CloseCompressor(This);
367 return AVIERR_MEMORY;
370 hr = IAVIStream_ReadFormat(This->pStream, sInfo.dwStart, This->lpInFormat, &This->cbInFormat);
372 AVIFILE_CloseCompressor(This);
376 This->lpInBuffer = ((LPBYTE)This->lpInFormat) + This->cbInFormat;
379 /* check input format */
380 if (This->lpInFormat->biClrUsed == 0 && This->lpInFormat->biBitCount <= 8)
381 This->lpInFormat->biClrUsed = 1u << This->lpInFormat->biBitCount;
382 if (This->lpInFormat->biSizeImage == 0 &&
383 This->lpInFormat->biCompression == BI_RGB) {
384 This->lpInFormat->biSizeImage =
385 DIBWIDTHBYTES(*This->lpInFormat) * This->lpInFormat->biHeight;
388 /* only to pass through? */
389 if (This->lpInFormat->biCompression == BI_RGB && lpBits == NULL) {
391 (lpbi->biCompression == BI_RGB &&
392 lpbi->biWidth == This->lpInFormat->biWidth &&
393 lpbi->biHeight == This->lpInFormat->biHeight &&
394 lpbi->biBitCount == This->lpInFormat->biBitCount)) {
395 This->lpOutFormat = This->lpInFormat;
396 This->lpOutBuffer = DIBPTR(This->lpInFormat);
401 /* need memory for output format? */
402 if (This->lpOutFormat == NULL) {
404 HeapAlloc(GetProcessHeap(), 0, sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
405 if (This->lpOutFormat == NULL) {
406 AVIFILE_CloseCompressor(This);
407 return AVIERR_MEMORY;
411 /* need handle to video compressor */
412 if (This->hic == NULL) {
415 if (This->lpInFormat->biCompression == BI_RGB)
416 fccHandler = comptypeDIB;
417 else if (This->lpInFormat->biCompression == BI_RLE8)
418 fccHandler = mmioFOURCC('R','L','E',' ');
420 fccHandler = sInfo.fccHandler;
423 if (lpbi->biWidth == 0)
424 lpbi->biWidth = This->lpInFormat->biWidth;
425 if (lpbi->biHeight == 0)
426 lpbi->biHeight = This->lpInFormat->biHeight;
429 This->hic = ICLocate(ICTYPE_VIDEO, fccHandler, This->lpInFormat, lpbi, ICMODE_DECOMPRESS);
430 if (This->hic == NULL) {
431 AVIFILE_CloseCompressor(This);
432 return AVIERR_NOCOMPRESSOR;
436 /* output format given? */
438 /* check the given output format ... */
439 if (lpbi->biClrUsed == 0 && lpbi->biBitCount <= 8)
440 lpbi->biClrUsed = 1u << lpbi->biBitCount;
442 /* ... and remember it */
443 memcpy(This->lpOutFormat, lpbi,
444 lpbi->biSize + lpbi->biClrUsed * sizeof(RGBQUAD));
445 if (lpbi->biBitCount <= 8)
446 ICDecompressGetPalette(This->hic, This->lpInFormat, This->lpOutFormat);
451 ICGetDisplayFormat(This->hic, This->lpInFormat,
452 This->lpOutFormat, 0, dx, dy);
453 } else if (ICDecompressGetFormat(This->hic, This->lpInFormat,
454 This->lpOutFormat) < 0) {
455 AVIFILE_CloseCompressor(This);
456 return AVIERR_NOCOMPRESSOR;
459 /* check output format */
460 if (This->lpOutFormat->biClrUsed == 0 &&
461 This->lpOutFormat->biBitCount <= 8)
462 This->lpOutFormat->biClrUsed = 1u << This->lpOutFormat->biBitCount;
463 if (This->lpOutFormat->biSizeImage == 0 &&
464 This->lpOutFormat->biCompression == BI_RGB) {
465 This->lpOutFormat->biSizeImage =
466 DIBWIDTHBYTES(*This->lpOutFormat) * This->lpOutFormat->biHeight;
469 if (lpBits == NULL) {
470 register DWORD size = This->lpOutFormat->biClrUsed * sizeof(RGBQUAD);
472 size += This->lpOutFormat->biSize + This->lpOutFormat->biSizeImage;
473 This->lpOutFormat = HeapReAlloc(GetProcessHeap(), 0, This->lpOutFormat, size);
474 if (This->lpOutFormat == NULL) {
475 AVIFILE_CloseCompressor(This);
476 return AVIERR_MEMORY;
478 This->lpOutBuffer = DIBPTR(This->lpOutFormat);
480 This->lpOutBuffer = lpBits;
482 /* for user size was irrelevant */
484 dx = This->lpOutFormat->biWidth;
486 dy = This->lpOutFormat->biHeight;
488 /* need to resize? */
489 if (x != 0 || y != 0) {
490 if (dy == This->lpOutFormat->biHeight &&
491 dx == This->lpOutFormat->biWidth)
492 This->bResize = FALSE;
494 This->bResize = TRUE;
503 if (ICDecompressExBegin(This->hic,0,This->lpInFormat,This->lpInBuffer,0,
504 0,This->lpInFormat->biWidth,
505 This->lpInFormat->biHeight,This->lpOutFormat,
506 This->lpOutBuffer, x, y, dx, dy) == ICERR_OK)
508 } else if (ICDecompressBegin(This->hic, This->lpInFormat,
509 This->lpOutFormat) == ICERR_OK)
512 AVIFILE_CloseCompressor(This);
514 return AVIERR_COMPRESSOR;
518 /***********************************************************************/