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 typedef struct _IGetFrameImpl {
42 IGetFrame IGetFrame_iface;
51 LPBITMAPINFOHEADER lpInFormat;
55 LPBITMAPINFOHEADER lpOutFormat;
66 DWORD dwFormatChangeCount;
70 /***********************************************************************/
72 static inline IGetFrameImpl *impl_from_IGetFrame(IGetFrame *iface)
74 return CONTAINING_RECORD(iface, IGetFrameImpl, IGetFrame_iface);
77 static void AVIFILE_CloseCompressor(IGetFrameImpl *This)
79 if (This->lpInFormat != This->lpOutFormat) {
80 HeapFree(GetProcessHeap(), 0, This->lpOutFormat);
81 This->lpOutFormat = NULL;
83 HeapFree(GetProcessHeap(), 0, This->lpInFormat);
84 This->lpInFormat = NULL;
85 if (This->hic != NULL) {
87 ICDecompressExEnd(This->hic);
89 ICDecompressEnd(This->hic);
95 static HRESULT WINAPI IGetFrame_fnQueryInterface(IGetFrame *iface,
96 REFIID refiid, LPVOID *obj)
98 IGetFrameImpl *This = impl_from_IGetFrame(iface);
100 TRACE("(%p,%s,%p)\n", This, debugstr_guid(refiid), obj);
102 if (IsEqualGUID(&IID_IUnknown, refiid) ||
103 IsEqualGUID(&IID_IGetFrame, refiid)) {
105 IGetFrame_AddRef(iface);
109 return OLE_E_ENUM_NOMORE;
112 static ULONG WINAPI IGetFrame_fnAddRef(IGetFrame *iface)
114 IGetFrameImpl *This = impl_from_IGetFrame(iface);
115 ULONG ref = InterlockedIncrement(&This->ref);
117 TRACE("(%p)\n", iface);
122 static ULONG WINAPI IGetFrame_fnRelease(IGetFrame *iface)
124 IGetFrameImpl *This = impl_from_IGetFrame(iface);
125 ULONG ref = InterlockedDecrement(&This->ref);
127 TRACE("(%p)\n", iface);
130 AVIFILE_CloseCompressor(This);
131 if (This->pStream != NULL) {
132 IAVIStream_Release(This->pStream);
133 This->pStream = NULL;
136 HeapFree(GetProcessHeap(), 0, iface);
143 static LPVOID WINAPI IGetFrame_fnGetFrame(IGetFrame *iface, LONG lPos)
145 IGetFrameImpl *This = impl_from_IGetFrame(iface);
150 TRACE("(%p,%d)\n", iface, lPos);
152 /* We don't want negative start values! -- marks invalid buffer content */
157 if (This->pStream == NULL)
159 if (This->lpInFormat == NULL)
162 /* Could stream have changed? */
163 if (! This->bFixedStream) {
164 AVISTREAMINFOW sInfo;
166 IAVIStream_Info(This->pStream, &sInfo, sizeof(sInfo));
168 if (sInfo.dwEditCount != This->dwEditCount) {
169 This->dwEditCount = sInfo.dwEditCount;
170 This->lCurrentFrame = -1;
173 if (sInfo.dwFormatChangeCount != This->dwFormatChangeCount) {
174 /* stream has changed */
175 if (This->lpOutFormat != NULL) {
178 bi = *This->lpOutFormat;
179 AVIFILE_CloseCompressor(This);
181 if (FAILED(IGetFrame_SetFormat(iface, &bi, NULL, 0, 0, -1, -1))) {
182 if (FAILED(IGetFrame_SetFormat(iface, NULL, NULL, 0, 0, -1, -1)))
185 } else if (FAILED(IGetFrame_SetFormat(iface, NULL, NULL, 0, 0, -1, -1)))
190 if (lPos != This->lCurrentFrame) {
191 LONG lNext = IAVIStream_FindSample(This->pStream,lPos,FIND_KEY|FIND_PREV);
194 return NULL; /* frame doesn't exist */
195 if (lNext <= This->lCurrentFrame && This->lCurrentFrame < lPos)
196 lNext = This->lCurrentFrame + 1;
198 for (; lNext <= lPos; lNext++) {
199 /* new format for this frame? */
200 if (This->bFormatChanges) {
201 IAVIStream_ReadFormat(This->pStream, lNext,
202 This->lpInFormat, &This->cbInFormat);
203 if (This->lpOutFormat != NULL) {
204 if (This->lpOutFormat->biBitCount <= 8)
205 ICDecompressGetPalette(This->hic, This->lpInFormat,
210 /* read input frame */
211 while (FAILED(AVIStreamRead(This->pStream, lNext, 1, This->lpInBuffer,
212 This->cbInBuffer, &readBytes, &readSamples))) {
213 /* not enough memory for input buffer? */
215 if (FAILED(AVIStreamSampleSize(This->pStream, lNext, &readBytes)))
216 return NULL; /* bad thing, but bad things will happen */
217 if (readBytes <= 0) {
218 ERR(": IAVIStream::Read doesn't return needed bytes!\n");
222 /* IAVIStream::Read failed because of other reasons not buffersize? */
223 if (This->cbInBuffer >= readBytes)
225 This->cbInBuffer = This->cbInFormat + readBytes;
226 This->lpInFormat = HeapReAlloc(GetProcessHeap(), 0, This->lpInFormat, This->cbInBuffer);
227 if (This->lpInFormat == NULL)
228 return NULL; /* out of memory */
229 This->lpInBuffer = (BYTE*)This->lpInFormat + This->cbInFormat;
232 if (readSamples != 1) {
233 ERR(": no frames read\n");
236 if (readBytes != 0) {
237 This->lpInFormat->biSizeImage = readBytes;
239 /* nothing to decompress? */
240 if (This->hic == NULL) {
241 This->lCurrentFrame = lPos;
242 return This->lpInFormat;
246 ICDecompressEx(This->hic,0,This->lpInFormat,This->lpInBuffer,0,0,
247 This->lpInFormat->biWidth,This->lpInFormat->biHeight,
248 This->lpOutFormat,This->lpOutBuffer,This->x,This->y,
251 ICDecompress(This->hic, 0, This->lpInFormat, This->lpInBuffer,
252 This->lpOutFormat, This->lpOutBuffer);
255 } /* for (lNext < lPos) */
256 } /* if (This->lCurrentFrame != lPos) */
258 return (This->hic == NULL ? This->lpInFormat : This->lpOutFormat);
261 static HRESULT WINAPI IGetFrame_fnBegin(IGetFrame *iface, LONG lStart,
262 LONG lEnd, LONG lRate)
264 IGetFrameImpl *This = impl_from_IGetFrame(iface);
266 TRACE("(%p,%d,%d,%d)\n", iface, lStart, lEnd, lRate);
268 This->bFixedStream = TRUE;
270 return (IGetFrame_GetFrame(iface, lStart) ? AVIERR_OK : AVIERR_ERROR);
273 static HRESULT WINAPI IGetFrame_fnEnd(IGetFrame *iface)
275 IGetFrameImpl *This = impl_from_IGetFrame(iface);
277 TRACE("(%p)\n", iface);
279 This->bFixedStream = FALSE;
284 static HRESULT WINAPI IGetFrame_fnSetFormat(IGetFrame *iface,
285 LPBITMAPINFOHEADER lpbiWanted,
286 LPVOID lpBits, INT x, INT y,
289 IGetFrameImpl *This = impl_from_IGetFrame(iface);
291 AVISTREAMINFOW sInfo;
292 LPBITMAPINFOHEADER lpbi = lpbiWanted;
293 BOOL bBestDisplay = FALSE;
295 TRACE("(%p,%p,%p,%d,%d,%d,%d)\n", iface, lpbiWanted, lpBits,
298 if (This->pStream == NULL)
301 if (lpbiWanted == (LPBITMAPINFOHEADER)AVIGETFRAMEF_BESTDISPLAYFMT) {
306 IAVIStream_Info(This->pStream, &sInfo, sizeof(sInfo));
307 if (sInfo.fccType != streamtypeVIDEO)
308 return AVIERR_UNSUPPORTED;
310 This->bFormatChanges =
311 (sInfo.dwFlags & AVISTREAMINFO_FORMATCHANGES ? TRUE : FALSE );
312 This->dwFormatChangeCount = sInfo.dwFormatChangeCount;
313 This->dwEditCount = sInfo.dwEditCount;
314 This->lCurrentFrame = -1;
316 /* get input format from stream */
317 if (This->lpInFormat == NULL) {
320 This->cbInBuffer = (LONG)sInfo.dwSuggestedBufferSize;
321 if (This->cbInBuffer == 0)
322 This->cbInBuffer = 1024;
324 IAVIStream_ReadFormat(This->pStream, sInfo.dwStart,
325 NULL, &This->cbInFormat);
327 This->lpInFormat = HeapAlloc(GetProcessHeap(), 0, This->cbInFormat + This->cbInBuffer);
328 if (This->lpInFormat == NULL) {
329 AVIFILE_CloseCompressor(This);
330 return AVIERR_MEMORY;
333 hr = IAVIStream_ReadFormat(This->pStream, sInfo.dwStart, This->lpInFormat, &This->cbInFormat);
335 AVIFILE_CloseCompressor(This);
339 This->lpInBuffer = ((LPBYTE)This->lpInFormat) + This->cbInFormat;
342 /* check input format */
343 if (This->lpInFormat->biClrUsed == 0 && This->lpInFormat->biBitCount <= 8)
344 This->lpInFormat->biClrUsed = 1u << This->lpInFormat->biBitCount;
345 if (This->lpInFormat->biSizeImage == 0 &&
346 This->lpInFormat->biCompression == BI_RGB) {
347 This->lpInFormat->biSizeImage =
348 DIBWIDTHBYTES(*This->lpInFormat) * This->lpInFormat->biHeight;
351 /* only to pass through? */
352 if (This->lpInFormat->biCompression == BI_RGB && lpBits == NULL) {
354 (lpbi->biCompression == BI_RGB &&
355 lpbi->biWidth == This->lpInFormat->biWidth &&
356 lpbi->biHeight == This->lpInFormat->biHeight &&
357 lpbi->biBitCount == This->lpInFormat->biBitCount)) {
358 This->lpOutFormat = This->lpInFormat;
359 This->lpOutBuffer = DIBPTR(This->lpInFormat);
364 /* need memory for output format? */
365 if (This->lpOutFormat == NULL) {
367 HeapAlloc(GetProcessHeap(), 0, sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
368 if (This->lpOutFormat == NULL) {
369 AVIFILE_CloseCompressor(This);
370 return AVIERR_MEMORY;
374 /* need handle to video compressor */
375 if (This->hic == NULL) {
378 if (This->lpInFormat->biCompression == BI_RGB)
379 fccHandler = comptypeDIB;
380 else if (This->lpInFormat->biCompression == BI_RLE8)
381 fccHandler = mmioFOURCC('R','L','E',' ');
383 fccHandler = sInfo.fccHandler;
386 if (lpbi->biWidth == 0)
387 lpbi->biWidth = This->lpInFormat->biWidth;
388 if (lpbi->biHeight == 0)
389 lpbi->biHeight = This->lpInFormat->biHeight;
392 This->hic = ICLocate(ICTYPE_VIDEO, fccHandler, This->lpInFormat, lpbi, ICMODE_DECOMPRESS);
393 if (This->hic == NULL) {
394 AVIFILE_CloseCompressor(This);
395 return AVIERR_NOCOMPRESSOR;
399 /* output format given? */
401 /* check the given output format ... */
402 if (lpbi->biClrUsed == 0 && lpbi->biBitCount <= 8)
403 lpbi->biClrUsed = 1u << lpbi->biBitCount;
405 /* ... and remember it */
406 memcpy(This->lpOutFormat, lpbi,
407 lpbi->biSize + lpbi->biClrUsed * sizeof(RGBQUAD));
408 if (lpbi->biBitCount <= 8)
409 ICDecompressGetPalette(This->hic, This->lpInFormat, This->lpOutFormat);
414 ICGetDisplayFormat(This->hic, This->lpInFormat,
415 This->lpOutFormat, 0, dx, dy);
416 } else if (ICDecompressGetFormat(This->hic, This->lpInFormat,
417 This->lpOutFormat) < 0) {
418 AVIFILE_CloseCompressor(This);
419 return AVIERR_NOCOMPRESSOR;
422 /* check output format */
423 if (This->lpOutFormat->biClrUsed == 0 &&
424 This->lpOutFormat->biBitCount <= 8)
425 This->lpOutFormat->biClrUsed = 1u << This->lpOutFormat->biBitCount;
426 if (This->lpOutFormat->biSizeImage == 0 &&
427 This->lpOutFormat->biCompression == BI_RGB) {
428 This->lpOutFormat->biSizeImage =
429 DIBWIDTHBYTES(*This->lpOutFormat) * This->lpOutFormat->biHeight;
432 if (lpBits == NULL) {
433 register DWORD size = This->lpOutFormat->biClrUsed * sizeof(RGBQUAD);
435 size += This->lpOutFormat->biSize + This->lpOutFormat->biSizeImage;
436 This->lpOutFormat = HeapReAlloc(GetProcessHeap(), 0, This->lpOutFormat, size);
437 if (This->lpOutFormat == NULL) {
438 AVIFILE_CloseCompressor(This);
439 return AVIERR_MEMORY;
441 This->lpOutBuffer = DIBPTR(This->lpOutFormat);
443 This->lpOutBuffer = lpBits;
445 /* for user size was irrelevant */
447 dx = This->lpOutFormat->biWidth;
449 dy = This->lpOutFormat->biHeight;
451 /* need to resize? */
452 if (x != 0 || y != 0) {
453 if (dy == This->lpOutFormat->biHeight &&
454 dx == This->lpOutFormat->biWidth)
455 This->bResize = FALSE;
457 This->bResize = TRUE;
466 if (ICDecompressExBegin(This->hic,0,This->lpInFormat,This->lpInBuffer,0,
467 0,This->lpInFormat->biWidth,
468 This->lpInFormat->biHeight,This->lpOutFormat,
469 This->lpOutBuffer, x, y, dx, dy) == ICERR_OK)
471 } else if (ICDecompressBegin(This->hic, This->lpInFormat,
472 This->lpOutFormat) == ICERR_OK)
475 AVIFILE_CloseCompressor(This);
477 return AVIERR_COMPRESSOR;
481 static const struct IGetFrameVtbl igetframeVtbl = {
482 IGetFrame_fnQueryInterface,
485 IGetFrame_fnGetFrame,
488 IGetFrame_fnSetFormat
491 PGETFRAME AVIFILE_CreateGetFrame(PAVISTREAM pStream)
495 /* check parameter */
499 pg = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IGetFrameImpl));
501 pg->IGetFrame_iface.lpVtbl = &igetframeVtbl;
503 pg->lCurrentFrame = -1;
504 pg->pStream = pStream;
505 IAVIStream_AddRef(pStream);
508 return (PGETFRAME)pg;
511 /***********************************************************************/