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
19 #define COM_NO_WINDOWS_H
30 #include "avifile_private.h"
32 #include "wine/debug.h"
34 WINE_DEFAULT_DEBUG_CHANNEL(avifile);
37 #define DIBPTR(lp) ((LPBYTE)(lp) + (lp)->biSize + \
38 (lp)->biClrUsed * sizeof(RGBQUAD))
41 /***********************************************************************/
43 static HRESULT WINAPI IGetFrame_fnQueryInterface(IGetFrame *iface,
44 REFIID refiid, LPVOID *obj);
45 static ULONG WINAPI IGetFrame_fnAddRef(IGetFrame *iface);
46 static ULONG WINAPI IGetFrame_fnRelease(IGetFrame *iface);
47 static LPVOID WINAPI IGetFrame_fnGetFrame(IGetFrame *iface, LONG lPos);
48 static HRESULT WINAPI IGetFrame_fnBegin(IGetFrame *iface, LONG lStart,
49 LONG lEnd, LONG lRate);
50 static HRESULT WINAPI IGetFrame_fnEnd(IGetFrame *iface);
51 static HRESULT WINAPI IGetFrame_fnSetFormat(IGetFrame *iface,
52 LPBITMAPINFOHEADER lpbi,
53 LPVOID lpBits, INT x, INT y,
56 static const struct IGetFrameVtbl igetframeVtbl = {
57 IGetFrame_fnQueryInterface,
66 typedef struct _IGetFrameImpl {
68 const IGetFrameVtbl *lpVtbl;
77 LPBITMAPINFOHEADER lpInFormat;
81 LPBITMAPINFOHEADER lpOutFormat;
92 DWORD dwFormatChangeCount;
96 /***********************************************************************/
98 static void AVIFILE_CloseCompressor(IGetFrameImpl *This)
100 if (This->lpInFormat != This->lpOutFormat) {
101 HeapFree(GetProcessHeap(), 0, This->lpOutFormat);
102 This->lpOutFormat = NULL;
104 HeapFree(GetProcessHeap(), 0, This->lpInFormat);
105 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 = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IGetFrameImpl));
126 pg->lpVtbl = &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 IGetFrameImpl *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 IGetFrameImpl *This = (IGetFrameImpl *)iface;
155 ULONG ref = InterlockedIncrement(&This->ref);
157 TRACE("(%p)\n", iface);
162 static ULONG WINAPI IGetFrame_fnRelease(IGetFrame *iface)
164 IGetFrameImpl *This = (IGetFrameImpl *)iface;
165 ULONG ref = InterlockedDecrement(&This->ref);
167 TRACE("(%p)\n", iface);
170 AVIFILE_CloseCompressor(This);
171 if (This->pStream != NULL) {
172 IAVIStream_Release(This->pStream);
173 This->pStream = NULL;
176 HeapFree(GetProcessHeap(), 0, iface);
183 static LPVOID WINAPI IGetFrame_fnGetFrame(IGetFrame *iface, LONG lPos)
185 IGetFrameImpl *This = (IGetFrameImpl *)iface;
190 TRACE("(%p,%ld)\n", iface, lPos);
192 /* We don't want negative start values! -- marks invalid buffer content */
197 if (This->pStream == NULL)
199 if (This->lpInFormat == NULL)
202 /* Could stream have changed? */
203 if (! This->bFixedStream) {
204 AVISTREAMINFOW sInfo;
206 IAVIStream_Info(This->pStream, &sInfo, sizeof(sInfo));
208 if (sInfo.dwEditCount != This->dwEditCount) {
209 This->dwEditCount = sInfo.dwEditCount;
210 This->lCurrentFrame = -1;
213 if (sInfo.dwFormatChangeCount != This->dwFormatChangeCount) {
214 /* stream has changed */
215 if (This->lpOutFormat != NULL) {
218 memcpy(&bi, This->lpOutFormat, sizeof(bi));
219 AVIFILE_CloseCompressor(This);
221 if (FAILED(IGetFrame_SetFormat(iface, &bi, NULL, 0, 0, -1, -1))) {
222 if (FAILED(IGetFrame_SetFormat(iface, NULL, NULL, 0, 0, -1, -1)))
225 } else if (FAILED(IGetFrame_SetFormat(iface, NULL, NULL, 0, 0, -1, -1)))
230 if (lPos != This->lCurrentFrame) {
231 LONG lNext = IAVIStream_FindSample(This->pStream,lPos,FIND_KEY|FIND_PREV);
234 return NULL; /* frame doesn't exist */
235 if (lNext <= This->lCurrentFrame && This->lCurrentFrame < lPos)
236 lNext = This->lCurrentFrame + 1;
238 for (; lNext <= lPos; lNext++) {
239 /* new format for this frame? */
240 if (This->bFormatChanges) {
241 IAVIStream_ReadFormat(This->pStream, lNext,
242 This->lpInFormat, &This->cbInFormat);
243 if (This->lpOutFormat != NULL) {
244 if (This->lpOutFormat->biBitCount <= 8)
245 ICDecompressGetPalette(This->hic, This->lpInFormat,
250 /* read input frame */
251 while (FAILED(AVIStreamRead(This->pStream, lNext, 1, This->lpInBuffer,
252 This->cbInBuffer, &readBytes, &readSamples))) {
253 /* not enough memory for input buffer? */
255 if (FAILED(AVIStreamSampleSize(This->pStream, lNext, &readBytes)))
256 return NULL; /* bad thing, but bad things will happen */
257 if (readBytes <= 0) {
258 ERR(": IAVIStream::REad doesn't return needed bytes!\n");
262 /* IAVIStream::Read failed because of other reasons not buffersize? */
263 if (This->cbInBuffer >= readBytes)
265 This->cbInBuffer = This->cbInFormat + readBytes;
266 This->lpInFormat = HeapReAlloc(GetProcessHeap(), 0, This->lpInFormat, This->cbInBuffer);
267 if (This->lpInFormat == NULL)
268 return NULL; /* out of memory */
269 This->lpInBuffer = (BYTE*)This->lpInFormat + This->cbInFormat;
272 if (readSamples != 1) {
273 ERR(": no frames read\n");
276 if (readBytes != 0) {
277 This->lpInFormat->biSizeImage = readBytes;
279 /* nothing to decompress? */
280 if (This->hic == NULL) {
281 This->lCurrentFrame = lPos;
282 return This->lpInFormat;
286 ICDecompressEx(This->hic,0,This->lpInFormat,This->lpInBuffer,0,0,
287 This->lpInFormat->biWidth,This->lpInFormat->biHeight,
288 This->lpOutFormat,This->lpOutBuffer,This->x,This->y,
291 ICDecompress(This->hic, 0, This->lpInFormat, This->lpInBuffer,
292 This->lpOutFormat, This->lpOutBuffer);
295 } /* for (lNext < lPos) */
296 } /* if (This->lCurrentFrame != lPos) */
298 return (This->hic == NULL ? This->lpInFormat : This->lpOutFormat);
301 static HRESULT WINAPI IGetFrame_fnBegin(IGetFrame *iface, LONG lStart,
302 LONG lEnd, LONG lRate)
304 IGetFrameImpl *This = (IGetFrameImpl *)iface;
306 TRACE("(%p,%ld,%ld,%ld)\n", iface, lStart, lEnd, lRate);
308 This->bFixedStream = TRUE;
310 return (IGetFrame_GetFrame(iface, lStart) ? AVIERR_OK : AVIERR_ERROR);
313 static HRESULT WINAPI IGetFrame_fnEnd(IGetFrame *iface)
315 IGetFrameImpl *This = (IGetFrameImpl *)iface;
317 TRACE("(%p)\n", iface);
319 This->bFixedStream = FALSE;
324 static HRESULT WINAPI IGetFrame_fnSetFormat(IGetFrame *iface,
325 LPBITMAPINFOHEADER lpbiWanted,
326 LPVOID lpBits, INT x, INT y,
329 IGetFrameImpl *This = (IGetFrameImpl *)iface;
331 AVISTREAMINFOW sInfo;
332 LPBITMAPINFOHEADER lpbi = lpbiWanted;
333 BOOL bBestDisplay = FALSE;
335 TRACE("(%p,%p,%p,%d,%d,%d,%d)\n", iface, lpbiWanted, lpBits,
338 if (This->pStream == NULL)
341 if (lpbiWanted == (LPBITMAPINFOHEADER)AVIGETFRAMEF_BESTDISPLAYFMT) {
346 IAVIStream_Info(This->pStream, &sInfo, sizeof(sInfo));
347 if (sInfo.fccType != streamtypeVIDEO)
348 return AVIERR_UNSUPPORTED;
350 This->bFormatChanges =
351 (sInfo.dwFlags & AVISTREAMINFO_FORMATCHANGES ? TRUE : FALSE );
352 This->dwFormatChangeCount = sInfo.dwFormatChangeCount;
353 This->dwEditCount = sInfo.dwEditCount;
354 This->lCurrentFrame = -1;
356 /* get input format from stream */
357 if (This->lpInFormat == NULL) {
360 This->cbInBuffer = (LONG)sInfo.dwSuggestedBufferSize;
361 if (This->cbInBuffer == 0)
362 This->cbInBuffer = 1024;
364 IAVIStream_ReadFormat(This->pStream, sInfo.dwStart,
365 NULL, &This->cbInFormat);
367 This->lpInFormat = HeapAlloc(GetProcessHeap(), 0, This->cbInFormat + This->cbInBuffer);
368 if (This->lpInFormat == NULL) {
369 AVIFILE_CloseCompressor(This);
370 return AVIERR_MEMORY;
373 hr = IAVIStream_ReadFormat(This->pStream, sInfo.dwStart, This->lpInFormat, &This->cbInFormat);
375 AVIFILE_CloseCompressor(This);
379 This->lpInBuffer = ((LPBYTE)This->lpInFormat) + This->cbInFormat;
382 /* check input format */
383 if (This->lpInFormat->biClrUsed == 0 && This->lpInFormat->biBitCount <= 8)
384 This->lpInFormat->biClrUsed = 1u << This->lpInFormat->biBitCount;
385 if (This->lpInFormat->biSizeImage == 0 &&
386 This->lpInFormat->biCompression == BI_RGB) {
387 This->lpInFormat->biSizeImage =
388 DIBWIDTHBYTES(*This->lpInFormat) * This->lpInFormat->biHeight;
391 /* only to pass through? */
392 if (This->lpInFormat->biCompression == BI_RGB && lpBits == NULL) {
394 (lpbi->biCompression == BI_RGB &&
395 lpbi->biWidth == This->lpInFormat->biWidth &&
396 lpbi->biHeight == This->lpInFormat->biHeight &&
397 lpbi->biBitCount == This->lpInFormat->biBitCount)) {
398 This->lpOutFormat = This->lpInFormat;
399 This->lpOutBuffer = DIBPTR(This->lpInFormat);
404 /* need memory for output format? */
405 if (This->lpOutFormat == NULL) {
407 HeapAlloc(GetProcessHeap(), 0, sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
408 if (This->lpOutFormat == NULL) {
409 AVIFILE_CloseCompressor(This);
410 return AVIERR_MEMORY;
414 /* need handle to video compressor */
415 if (This->hic == NULL) {
418 if (This->lpInFormat->biCompression == BI_RGB)
419 fccHandler = comptypeDIB;
420 else if (This->lpInFormat->biCompression == BI_RLE8)
421 fccHandler = mmioFOURCC('R','L','E',' ');
423 fccHandler = sInfo.fccHandler;
426 if (lpbi->biWidth == 0)
427 lpbi->biWidth = This->lpInFormat->biWidth;
428 if (lpbi->biHeight == 0)
429 lpbi->biHeight = This->lpInFormat->biHeight;
432 This->hic = ICLocate(ICTYPE_VIDEO, fccHandler, This->lpInFormat, lpbi, ICMODE_DECOMPRESS);
433 if (This->hic == NULL) {
434 AVIFILE_CloseCompressor(This);
435 return AVIERR_NOCOMPRESSOR;
439 /* output format given? */
441 /* check the given output format ... */
442 if (lpbi->biClrUsed == 0 && lpbi->biBitCount <= 8)
443 lpbi->biClrUsed = 1u << lpbi->biBitCount;
445 /* ... and remember it */
446 memcpy(This->lpOutFormat, lpbi,
447 lpbi->biSize + lpbi->biClrUsed * sizeof(RGBQUAD));
448 if (lpbi->biBitCount <= 8)
449 ICDecompressGetPalette(This->hic, This->lpInFormat, This->lpOutFormat);
454 ICGetDisplayFormat(This->hic, This->lpInFormat,
455 This->lpOutFormat, 0, dx, dy);
456 } else if (ICDecompressGetFormat(This->hic, This->lpInFormat,
457 This->lpOutFormat) < 0) {
458 AVIFILE_CloseCompressor(This);
459 return AVIERR_NOCOMPRESSOR;
462 /* check output format */
463 if (This->lpOutFormat->biClrUsed == 0 &&
464 This->lpOutFormat->biBitCount <= 8)
465 This->lpOutFormat->biClrUsed = 1u << This->lpOutFormat->biBitCount;
466 if (This->lpOutFormat->biSizeImage == 0 &&
467 This->lpOutFormat->biCompression == BI_RGB) {
468 This->lpOutFormat->biSizeImage =
469 DIBWIDTHBYTES(*This->lpOutFormat) * This->lpOutFormat->biHeight;
472 if (lpBits == NULL) {
473 register DWORD size = This->lpOutFormat->biClrUsed * sizeof(RGBQUAD);
475 size += This->lpOutFormat->biSize + This->lpOutFormat->biSizeImage;
476 This->lpOutFormat = HeapReAlloc(GetProcessHeap(), 0, This->lpOutFormat, size);
477 if (This->lpOutFormat == NULL) {
478 AVIFILE_CloseCompressor(This);
479 return AVIERR_MEMORY;
481 This->lpOutBuffer = DIBPTR(This->lpOutFormat);
483 This->lpOutBuffer = lpBits;
485 /* for user size was irrelevant */
487 dx = This->lpOutFormat->biWidth;
489 dy = This->lpOutFormat->biHeight;
491 /* need to resize? */
492 if (x != 0 || y != 0) {
493 if (dy == This->lpOutFormat->biHeight &&
494 dx == This->lpOutFormat->biWidth)
495 This->bResize = FALSE;
497 This->bResize = TRUE;
506 if (ICDecompressExBegin(This->hic,0,This->lpInFormat,This->lpInBuffer,0,
507 0,This->lpInFormat->biWidth,
508 This->lpInFormat->biHeight,This->lpOutFormat,
509 This->lpOutBuffer, x, y, dx, dy) == ICERR_OK)
511 } else if (ICDecompressBegin(This->hic, This->lpInFormat,
512 This->lpOutFormat) == ICERR_OK)
515 AVIFILE_CloseCompressor(This);
517 return AVIERR_COMPRESSOR;
521 /***********************************************************************/