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
34 #include "avifile_private.h"
36 #include "wine/debug.h"
38 WINE_DEFAULT_DEBUG_CHANNEL(avifile
);
40 /***********************************************************************/
42 static HRESULT WINAPI
ACMStream_fnQueryInterface(IAVIStream
*iface
,REFIID refiid
,LPVOID
*obj
);
43 static ULONG WINAPI
ACMStream_fnAddRef(IAVIStream
*iface
);
44 static ULONG WINAPI
ACMStream_fnRelease(IAVIStream
* iface
);
45 static HRESULT WINAPI
ACMStream_fnCreate(IAVIStream
*iface
,LPARAM lParam1
,LPARAM lParam2
);
46 static HRESULT WINAPI
ACMStream_fnInfo(IAVIStream
*iface
,AVISTREAMINFOW
*psi
,LONG size
);
47 static LONG WINAPI
ACMStream_fnFindSample(IAVIStream
*iface
,LONG pos
,LONG flags
);
48 static HRESULT WINAPI
ACMStream_fnReadFormat(IAVIStream
*iface
,LONG pos
,LPVOID format
,LONG
*formatsize
);
49 static HRESULT WINAPI
ACMStream_fnSetFormat(IAVIStream
*iface
,LONG pos
,LPVOID format
,LONG formatsize
);
50 static HRESULT WINAPI
ACMStream_fnRead(IAVIStream
*iface
,LONG start
,LONG samples
,LPVOID buffer
,LONG buffersize
,LONG
*bytesread
,LONG
*samplesread
);
51 static HRESULT WINAPI
ACMStream_fnWrite(IAVIStream
*iface
,LONG start
,LONG samples
,LPVOID buffer
,LONG buffersize
,DWORD flags
,LONG
*sampwritten
,LONG
*byteswritten
);
52 static HRESULT WINAPI
ACMStream_fnDelete(IAVIStream
*iface
,LONG start
,LONG samples
);
53 static HRESULT WINAPI
ACMStream_fnReadData(IAVIStream
*iface
,DWORD fcc
,LPVOID lp
,LONG
*lpread
);
54 static HRESULT WINAPI
ACMStream_fnWriteData(IAVIStream
*iface
,DWORD fcc
,LPVOID lp
,LONG size
);
55 static HRESULT WINAPI
ACMStream_fnSetInfo(IAVIStream
*iface
,AVISTREAMINFOW
*info
,LONG infolen
);
57 struct ICOM_VTABLE(IAVIStream
) iacmst
= {
58 ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
59 ACMStream_fnQueryInterface
,
64 ACMStream_fnFindSample
,
65 ACMStream_fnReadFormat
,
66 ACMStream_fnSetFormat
,
71 ACMStream_fnWriteData
,
75 typedef struct _IAVIStreamImpl
{
77 ICOM_VFIELD(IAVIStream
);
80 /* IAVIStream stuff */
86 LPWAVEFORMATEX lpInFormat
;
89 LPWAVEFORMATEX lpOutFormat
;
92 ACMSTREAMHEADER acmStreamHdr
;
95 /***********************************************************************/
97 #define CONVERT_STREAM_to_THIS(a) { \
98 acmStreamSize(This->has,(a)*This->lpInFormat->nBlockAlign,\
99 &(a), ACM_STREAMSIZEF_SOURCE); \
100 (a) /= This->lpOutFormat->nBlockAlign; }
101 #define CONVERT_THIS_to_STREAM(a) { \
102 acmStreamSize(This->has,(a)*This->lpOutFormat->nBlockAlign,\
103 &(a), ACM_STREAMSIZEF_DESTINATION); \
104 (a) /= This->lpInFormat->nBlockAlign; }
106 static HRESULT
AVIFILE_OpenCompressor(IAVIStreamImpl
*This
);
108 HRESULT
AVIFILE_CreateACMStream(REFIID riid
, LPVOID
*ppv
)
110 IAVIStreamImpl
*pstream
;
113 assert(riid
!= NULL
&& ppv
!= NULL
);
117 pstream
= (IAVIStreamImpl
*)LocalAlloc(LPTR
, sizeof(IAVIStreamImpl
));
119 return AVIERR_MEMORY
;
121 pstream
->lpVtbl
= &iacmst
;
123 hr
= IUnknown_QueryInterface((IUnknown
*)pstream
, riid
, ppv
);
125 LocalFree((HLOCAL
)pstream
);
130 static HRESULT WINAPI
ACMStream_fnQueryInterface(IAVIStream
*iface
,
131 REFIID refiid
, LPVOID
*obj
)
133 ICOM_THIS(IAVIStreamImpl
,iface
);
135 TRACE("(%p,%s,%p)\n", iface
, debugstr_guid(refiid
), obj
);
137 if (IsEqualGUID(&IID_IUnknown
, refiid
) ||
138 IsEqualGUID(&IID_IAVIStream
, refiid
)) {
140 IAVIStream_AddRef(iface
);
145 return OLE_E_ENUM_NOMORE
;
148 static ULONG WINAPI
ACMStream_fnAddRef(IAVIStream
*iface
)
150 ICOM_THIS(IAVIStreamImpl
,iface
);
152 TRACE("(%p) -> %ld\n", iface
, This
->ref
+ 1);
154 /* also add reference to the nested stream */
155 if (This
->pStream
!= NULL
)
156 IAVIStream_AddRef(This
->pStream
);
158 return ++(This
->ref
);
161 static ULONG WINAPI
ACMStream_fnRelease(IAVIStream
* iface
)
163 ICOM_THIS(IAVIStreamImpl
,iface
);
165 TRACE("(%p) -> %ld\n", iface
, This
->ref
- 1);
167 if (This
->ref
== 0) {
169 if (This
->has
!= NULL
) {
170 if (This
->acmStreamHdr
.fdwStatus
& ACMSTREAMHEADER_STATUSF_PREPARED
)
171 acmStreamUnprepareHeader(This
->has
, &This
->acmStreamHdr
, 0);
172 acmStreamClose(This
->has
, 0);
175 if (This
->acmStreamHdr
.pbSrc
!= NULL
) {
176 GlobalFreePtr(This
->acmStreamHdr
.pbSrc
);
177 This
->acmStreamHdr
.pbSrc
= NULL
;
179 if (This
->acmStreamHdr
.pbDst
!= NULL
) {
180 GlobalFreePtr(This
->acmStreamHdr
.pbDst
);
181 This
->acmStreamHdr
.pbDst
= NULL
;
183 if (This
->lpInFormat
!= NULL
) {
184 GlobalFreePtr(This
->lpInFormat
);
185 This
->lpInFormat
= NULL
;
186 This
->cbInFormat
= 0;
188 if (This
->lpOutFormat
!= NULL
) {
189 GlobalFreePtr(This
->lpOutFormat
);
190 This
->lpOutFormat
= NULL
;
191 This
->cbOutFormat
= 0;
193 if (This
->pStream
!= NULL
) {
194 IAVIStream_Release(This
->pStream
);
195 This
->pStream
= NULL
;
197 LocalFree((HLOCAL
)This
);
202 /* also release reference to the nested stream */
203 if (This
->pStream
!= NULL
)
204 IAVIStream_Release(This
->pStream
);
209 /* lParam1: PAVISTREAM
210 * lParam2: LPAVICOMPRESSOPTIONS -- even if doc's say LPWAVEFORMAT
212 static HRESULT WINAPI
ACMStream_fnCreate(IAVIStream
*iface
, LPARAM lParam1
,
215 ICOM_THIS(IAVIStreamImpl
,iface
);
217 TRACE("(%p,0x%08lX,0x%08lX)\n", iface
, lParam1
, lParam2
);
219 /* check for swapped parameters */
220 if ((LPVOID
)lParam1
!= NULL
&&
221 ((LPAVICOMPRESSOPTIONS
)lParam1
)->fccType
== streamtypeAUDIO
) {
222 register LPARAM tmp
= lParam1
;
228 if ((LPVOID
)lParam1
== NULL
)
229 return AVIERR_BADPARAM
;
231 IAVIStream_Info((PAVISTREAM
)lParam1
, &This
->sInfo
, sizeof(This
->sInfo
));
232 if (This
->sInfo
.fccType
!= streamtypeAUDIO
)
233 return AVIERR_ERROR
; /* error in registry or AVIMakeCompressedStream */
235 This
->sInfo
.fccHandler
= 0; /* be paranoid */
237 /* FIXME: check ACM version? Which version does we need? */
239 if ((LPVOID
)lParam2
!= NULL
) {
240 /* We only need the format from the compress-options */
241 if (((LPAVICOMPRESSOPTIONS
)lParam2
)->fccType
== streamtypeAUDIO
)
242 lParam2
= (LPARAM
)((LPAVICOMPRESSOPTIONS
)lParam2
)->lpFormat
;
244 if (((LPWAVEFORMATEX
)lParam2
)->wFormatTag
!= WAVE_FORMAT_PCM
)
245 This
->cbOutFormat
= sizeof(WAVEFORMATEX
) + ((LPWAVEFORMATEX
)lParam2
)->cbSize
;
247 This
->cbOutFormat
= sizeof(PCMWAVEFORMAT
);
249 This
->lpOutFormat
= (LPWAVEFORMATEX
)GlobalAllocPtr(GHND
, This
->cbOutFormat
);
250 if (This
->lpOutFormat
== NULL
)
251 return AVIERR_MEMORY
;
253 memcpy(This
->lpOutFormat
, (LPVOID
)lParam2
, This
->cbOutFormat
);
255 This
->lpOutFormat
= NULL
;
256 This
->cbOutFormat
= 0;
259 This
->pStream
= (PAVISTREAM
)lParam1
;
260 IAVIStream_AddRef(This
->pStream
);
265 static HRESULT WINAPI
ACMStream_fnInfo(IAVIStream
*iface
,LPAVISTREAMINFOW psi
,
268 ICOM_THIS(IAVIStreamImpl
,iface
);
270 TRACE("(%p,%p,%ld)\n", iface
, psi
, size
);
273 return AVIERR_BADPARAM
;
275 return AVIERR_BADSIZE
;
277 /* Need codec to correct some values in structure */
278 if (This
->has
== NULL
) {
279 HRESULT hr
= AVIFILE_OpenCompressor(This
);
285 memcpy(psi
, &This
->sInfo
, min(size
, (LONG
)sizeof(This
->sInfo
)));
287 if (size
< (LONG
)sizeof(This
->sInfo
))
288 return AVIERR_BUFFERTOOSMALL
;
292 static LONG WINAPI
ACMStream_fnFindSample(IAVIStream
*iface
, LONG pos
,
295 ICOM_THIS(IAVIStreamImpl
,iface
);
297 TRACE("(%p,%ld,0x%08lX)\n",iface
,pos
,flags
);
299 if (flags
& FIND_FROM_START
) {
300 pos
= This
->sInfo
.dwStart
;
301 flags
&= ~(FIND_FROM_START
|FIND_PREV
);
305 /* convert pos from our 'space' to This->pStream's one */
306 CONVERT_THIS_to_STREAM(pos
);
309 pos
= IAVIStream_FindSample(This
->pStream
, pos
, flags
);
312 /* convert pos back to our 'space' if it's no size or physical pos */
313 if ((flags
& FIND_RET
) == 0)
314 CONVERT_STREAM_to_THIS(pos
);
320 static HRESULT WINAPI
ACMStream_fnReadFormat(IAVIStream
*iface
, LONG pos
,
321 LPVOID format
, LONG
*formatsize
)
323 ICOM_THIS(IAVIStreamImpl
,iface
);
325 TRACE("(%p,%ld,%p,%p)\n", iface
, pos
, format
, formatsize
);
327 if (formatsize
== NULL
)
328 return AVIERR_BADPARAM
;
330 if (This
->has
== NULL
) {
331 HRESULT hr
= AVIFILE_OpenCompressor(This
);
337 /* only interested in needed buffersize? */
338 if (format
== NULL
|| *formatsize
<= 0) {
339 *formatsize
= This
->cbOutFormat
;
344 /* copy initial format (only as much as will fit) */
345 memcpy(format
, This
->lpOutFormat
, min(*formatsize
, This
->cbOutFormat
));
346 if (*formatsize
< This
->cbOutFormat
) {
347 *formatsize
= This
->cbOutFormat
;
348 return AVIERR_BUFFERTOOSMALL
;
351 *formatsize
= This
->cbOutFormat
;
355 static HRESULT WINAPI
ACMStream_fnSetFormat(IAVIStream
*iface
, LONG pos
,
356 LPVOID format
, LONG formatsize
)
358 ICOM_THIS(IAVIStreamImpl
,iface
);
362 TRACE("(%p,%ld,%p,%ld)\n", iface
, pos
, format
, formatsize
);
364 /* check parameters */
365 if (format
== NULL
|| formatsize
<= 0)
366 return AVIERR_BADPARAM
;
368 /* Input format already known?
369 * Changing is unsupported, but be quiet if it's the same */
370 if (This
->lpInFormat
!= NULL
) {
371 if (This
->cbInFormat
!= formatsize
||
372 memcmp(format
, This
->lpInFormat
, formatsize
) != 0)
373 return AVIERR_UNSUPPORTED
;
378 /* Does the nested stream support writing? */
379 if ((This
->sInfo
.dwCaps
& AVIFILECAPS_CANWRITE
) == 0)
380 return AVIERR_READONLY
;
382 This
->lpInFormat
= (LPWAVEFORMATEX
)GlobalAllocPtr(GMEM_MOVEABLE
, formatsize
);
383 if (This
->lpInFormat
== NULL
)
384 return AVIERR_MEMORY
;
385 This
->cbInFormat
= formatsize
;
386 memcpy(This
->lpInFormat
, format
, formatsize
);
388 /* initialize formats and get compressor */
389 hr
= AVIFILE_OpenCompressor(This
);
393 CONVERT_THIS_to_STREAM(pos
);
395 /* tell the nested stream the new format */
396 return IAVIStream_SetFormat(This
->pStream
, pos
, This
->lpOutFormat
,
400 static HRESULT WINAPI
ACMStream_fnRead(IAVIStream
*iface
, LONG start
,
401 LONG samples
, LPVOID buffer
,
402 LONG buffersize
, LPLONG bytesread
,
405 ICOM_THIS(IAVIStreamImpl
,iface
);
410 TRACE("(%p,%ld,%ld,%p,%ld,%p,%p)\n", iface
, start
, samples
, buffer
,
411 buffersize
, bytesread
, samplesread
);
413 /* clear return parameters if given */
414 if (bytesread
!= NULL
)
416 if (samplesread
!= NULL
)
419 /* Do we have our compressor? */
420 if (This
->has
== NULL
) {
421 hr
= AVIFILE_OpenCompressor(This
);
427 /* only need to pass through? */
428 if (This
->cbInFormat
== This
->cbOutFormat
&&
429 memcmp(This
->lpInFormat
, This
->lpOutFormat
, This
->cbInFormat
) == 0) {
430 return IAVIStream_Read(This
->pStream
, start
, samples
, buffer
, buffersize
,
431 bytesread
, samplesread
);
434 /* read as much as fit? */
436 samples
= buffersize
/ This
->lpOutFormat
->nBlockAlign
;
437 /* limit to buffersize */
438 if (samples
* This
->lpOutFormat
->nBlockAlign
> buffersize
)
439 samples
= buffersize
/ This
->lpOutFormat
->nBlockAlign
;
441 /* only return needed size? */
442 if (buffer
== NULL
|| buffersize
<= 0 || samples
== 0) {
443 if (bytesread
== NULL
&& samplesread
== NULL
)
444 return AVIERR_BADPARAM
;
446 if (bytesread
!= NULL
)
447 *bytesread
= samples
* This
->lpOutFormat
->nBlockAlign
;
448 if (samplesread
!= NULL
)
449 *samplesread
= samples
;
454 /* map our positions to pStream positions */
455 CONVERT_THIS_to_STREAM(start
);
457 /* our needed internal buffersize */
458 size
= samples
* This
->lpInFormat
->nBlockAlign
;
460 /* Need to free destination buffer used for writing? */
461 if (This
->acmStreamHdr
.pbDst
!= NULL
) {
462 GlobalFreePtr(This
->acmStreamHdr
.pbDst
);
463 This
->acmStreamHdr
.pbDst
= NULL
;
464 This
->acmStreamHdr
.dwDstUser
= 0;
467 /* need bigger source buffer? */
468 if (This
->acmStreamHdr
.pbSrc
== NULL
||
469 This
->acmStreamHdr
.dwSrcUser
< size
) {
470 if (This
->acmStreamHdr
.pbSrc
== NULL
)
471 This
->acmStreamHdr
.pbSrc
= GlobalAllocPtr(GMEM_MOVEABLE
, size
);
473 This
->acmStreamHdr
.pbSrc
= GlobalReAllocPtr(This
->acmStreamHdr
.pbSrc
,
474 size
, GMEM_MOVEABLE
);
475 if (This
->acmStreamHdr
.pbSrc
== NULL
)
476 return AVIERR_MEMORY
;
477 This
->acmStreamHdr
.dwSrcUser
= size
;
480 This
->acmStreamHdr
.cbStruct
= sizeof(This
->acmStreamHdr
);
481 This
->acmStreamHdr
.cbSrcLengthUsed
= 0;
482 This
->acmStreamHdr
.cbDstLengthUsed
= 0;
483 This
->acmStreamHdr
.cbSrcLength
= size
;
485 /* read source data */
486 hr
= IAVIStream_Read(This
->pStream
, start
, -1, This
->acmStreamHdr
.pbSrc
,
487 This
->acmStreamHdr
.cbSrcLength
,
488 &This
->acmStreamHdr
.cbSrcLength
, NULL
);
489 if (FAILED(hr
) || This
->acmStreamHdr
.cbSrcLength
== 0)
492 /* need to prepare stream? */
493 This
->acmStreamHdr
.pbDst
= buffer
;
494 This
->acmStreamHdr
.cbDstLength
= buffersize
;
495 if ((This
->acmStreamHdr
.fdwStatus
& ACMSTREAMHEADER_STATUSF_PREPARED
) == 0) {
496 if (acmStreamPrepareHeader(This
->has
, &This
->acmStreamHdr
, 0) != S_OK
) {
497 This
->acmStreamHdr
.pbDst
= NULL
;
498 This
->acmStreamHdr
.cbDstLength
= 0;
499 return AVIERR_COMPRESSOR
;
503 /* now do the conversion */
504 /* FIXME: use ACM_CONVERTF_* flags */
505 if (acmStreamConvert(This
->has
, &This
->acmStreamHdr
, 0) != S_OK
)
506 hr
= AVIERR_COMPRESSOR
;
508 This
->acmStreamHdr
.pbDst
= NULL
;
509 This
->acmStreamHdr
.cbDstLength
= 0;
511 /* fill out return parameters if given */
512 if (bytesread
!= NULL
)
513 *bytesread
= This
->acmStreamHdr
.cbDstLengthUsed
;
514 if (samplesread
!= NULL
)
516 This
->acmStreamHdr
.cbDstLengthUsed
/ This
->lpOutFormat
->nBlockAlign
;
521 static HRESULT WINAPI
ACMStream_fnWrite(IAVIStream
*iface
, LONG start
,
522 LONG samples
, LPVOID buffer
,
523 LONG buffersize
, DWORD flags
,
527 ICOM_THIS(IAVIStreamImpl
,iface
);
532 TRACE("(%p,%ld,%ld,%p,%ld,0x%08lX,%p,%p)\n", iface
, start
, samples
,
533 buffer
, buffersize
, flags
, sampwritten
, byteswritten
);
535 /* clear return parameters if given */
536 if (sampwritten
!= NULL
)
538 if (byteswritten
!= NULL
)
541 /* check parameters */
542 if (buffer
== NULL
&& (buffersize
> 0 || samples
> 0))
543 return AVIERR_BADPARAM
;
545 /* Have we write capability? */
546 if ((This
->sInfo
.dwCaps
& AVIFILECAPS_CANWRITE
) == 0)
547 return AVIERR_READONLY
;
549 /* also need a compressor */
550 if (This
->has
== NULL
)
551 return AVIERR_NOCOMPRESSOR
;
553 /* map our sizes to pStream sizes */
555 CONVERT_THIS_to_STREAM(size
);
556 CONVERT_THIS_to_STREAM(start
);
558 /* no bytes to write? -- short circuit */
560 return IAVIStream_Write(This
->pStream
, -1, samples
, buffer
, size
,
561 flags
, sampwritten
, byteswritten
);
564 /* Need to free source buffer used for reading? */
565 if (This
->acmStreamHdr
.pbSrc
!= NULL
) {
566 GlobalFreePtr(This
->acmStreamHdr
.pbSrc
);
567 This
->acmStreamHdr
.pbSrc
= NULL
;
568 This
->acmStreamHdr
.dwSrcUser
= 0;
571 /* Need bigger destination buffer? */
572 if (This
->acmStreamHdr
.pbDst
== NULL
||
573 This
->acmStreamHdr
.dwDstUser
< size
) {
574 if (This
->acmStreamHdr
.pbDst
== NULL
)
575 This
->acmStreamHdr
.pbDst
= GlobalAllocPtr(GMEM_MOVEABLE
, size
);
577 This
->acmStreamHdr
.pbDst
= GlobalReAllocPtr(This
->acmStreamHdr
.pbDst
,
578 size
, GMEM_MOVEABLE
);
579 if (This
->acmStreamHdr
.pbDst
== NULL
)
580 return AVIERR_MEMORY
;
581 This
->acmStreamHdr
.dwDstUser
= size
;
583 This
->acmStreamHdr
.cbStruct
= sizeof(This
->acmStreamHdr
);
584 This
->acmStreamHdr
.cbSrcLengthUsed
= 0;
585 This
->acmStreamHdr
.cbDstLengthUsed
= 0;
586 This
->acmStreamHdr
.cbDstLength
= This
->acmStreamHdr
.dwDstUser
;
588 /* need to prepare stream? */
589 This
->acmStreamHdr
.pbSrc
= buffer
;
590 This
->acmStreamHdr
.cbSrcLength
= buffersize
;
591 if ((This
->acmStreamHdr
.fdwStatus
& ACMSTREAMHEADER_STATUSF_PREPARED
) == 0) {
592 if (acmStreamPrepareHeader(This
->has
, &This
->acmStreamHdr
, 0) != S_OK
) {
593 This
->acmStreamHdr
.pbSrc
= NULL
;
594 This
->acmStreamHdr
.cbSrcLength
= 0;
595 return AVIERR_COMPRESSOR
;
599 /* now do the conversion */
600 /* FIXME: use ACM_CONVERTF_* flags */
601 if (acmStreamConvert(This
->has
, &This
->acmStreamHdr
, 0) != S_OK
)
602 hr
= AVIERR_COMPRESSOR
;
606 This
->acmStreamHdr
.pbSrc
= NULL
;
607 This
->acmStreamHdr
.cbSrcLength
= 0;
612 return IAVIStream_Write(This
->pStream
,-1,This
->acmStreamHdr
.cbDstLengthUsed
/
613 This
->lpOutFormat
->nBlockAlign
,This
->acmStreamHdr
.pbDst
,
614 This
->acmStreamHdr
.cbDstLengthUsed
,flags
,sampwritten
,
618 static HRESULT WINAPI
ACMStream_fnDelete(IAVIStream
*iface
, LONG start
,
621 ICOM_THIS(IAVIStreamImpl
,iface
);
623 TRACE("(%p,%ld,%ld)\n", iface
, start
, samples
);
625 /* check parameters */
626 if (start
< 0 || samples
< 0)
627 return AVIERR_BADPARAM
;
629 /* Delete before start of stream? */
630 if ((DWORD
)(start
+ samples
) < This
->sInfo
.dwStart
)
633 /* Delete after end of stream? */
634 if ((DWORD
)start
> This
->sInfo
.dwLength
)
637 /* For the rest we need write capability */
638 if ((This
->sInfo
.dwCaps
& AVIFILECAPS_CANWRITE
) == 0)
639 return AVIERR_READONLY
;
641 /* A compressor is also necessary */
642 if (This
->has
== NULL
)
643 return AVIERR_NOCOMPRESSOR
;
645 /* map our positions to pStream positions */
646 CONVERT_THIS_to_STREAM(start
);
647 CONVERT_THIS_to_STREAM(samples
);
649 return IAVIStream_Delete(This
->pStream
, start
, samples
);
652 static HRESULT WINAPI
ACMStream_fnReadData(IAVIStream
*iface
, DWORD fcc
,
653 LPVOID lp
, LPLONG lpread
)
655 ICOM_THIS(IAVIStreamImpl
,iface
);
657 TRACE("(%p,0x%08lX,%p,%p)\n", iface
, fcc
, lp
, lpread
);
659 assert(This
->pStream
!= NULL
);
661 return IAVIStream_ReadData(This
->pStream
, fcc
, lp
, lpread
);
664 static HRESULT WINAPI
ACMStream_fnWriteData(IAVIStream
*iface
, DWORD fcc
,
665 LPVOID lp
, LONG size
)
667 ICOM_THIS(IAVIStreamImpl
,iface
);
669 TRACE("(%p,0x%08lx,%p,%ld)\n", iface
, fcc
, lp
, size
);
671 assert(This
->pStream
!= NULL
);
673 return IAVIStream_WriteData(This
->pStream
, fcc
, lp
, size
);
676 static HRESULT WINAPI
ACMStream_fnSetInfo(IAVIStream
*iface
,
677 LPAVISTREAMINFOW info
, LONG infolen
)
679 FIXME("(%p,%p,%ld): stub\n", iface
, info
, infolen
);
684 /***********************************************************************/
686 static HRESULT
AVIFILE_OpenCompressor(IAVIStreamImpl
*This
)
691 assert(This
!= NULL
);
692 assert(This
->pStream
!= NULL
);
694 if (This
->has
!= NULL
)
697 if (This
->lpInFormat
== NULL
) {
698 /* decode or encode the data from pStream */
699 hr
= AVIStreamFormatSize(This
->pStream
, This
->sInfo
.dwStart
, &This
->cbInFormat
);
702 This
->lpInFormat
= (LPWAVEFORMATEX
)GlobalAllocPtr(GMEM_MOVEABLE
, This
->cbInFormat
);
703 if (This
->lpInFormat
== NULL
)
704 return AVIERR_MEMORY
;
706 hr
= IAVIStream_ReadFormat(This
->pStream
, This
->sInfo
.dwStart
,
707 This
->lpInFormat
, &This
->cbInFormat
);
711 if (This
->lpOutFormat
== NULL
) {
712 /* we must decode to default format */
713 This
->cbOutFormat
= sizeof(PCMWAVEFORMAT
);
714 This
->lpOutFormat
= (LPWAVEFORMATEX
)GlobalAllocPtr(GHND
, This
->cbOutFormat
);
715 if (This
->lpOutFormat
== NULL
)
716 return AVIERR_MEMORY
;
718 This
->lpOutFormat
->wFormatTag
= WAVE_FORMAT_PCM
;
719 if (acmFormatSuggest(NULL
, This
->lpInFormat
, This
->lpOutFormat
,
720 This
->cbOutFormat
, ACM_FORMATSUGGESTF_WFORMATTAG
) != S_OK
)
721 return AVIERR_NOCOMPRESSOR
;
723 } else if (This
->lpOutFormat
== NULL
)
724 return AVIERR_ERROR
; /* To what should I encode? */
726 if (acmStreamOpen(&This
->has
, NULL
, This
->lpInFormat
, This
->lpOutFormat
,
727 NULL
, 0, 0, ACM_STREAMOPENF_NONREALTIME
) != S_OK
)
728 return AVIERR_NOCOMPRESSOR
;
730 /* update AVISTREAMINFO structure */
731 This
->sInfo
.dwSampleSize
= This
->lpOutFormat
->nBlockAlign
;
732 This
->sInfo
.dwScale
= This
->lpOutFormat
->nBlockAlign
;
733 This
->sInfo
.dwRate
= This
->lpOutFormat
->nAvgBytesPerSec
;
734 This
->sInfo
.dwQuality
= (DWORD
)ICQUALITY_DEFAULT
;
735 SetRectEmpty(&This
->sInfo
.rcFrame
);
737 /* convert positions ansd sizes to output format */
738 CONVERT_STREAM_to_THIS(This
->sInfo
.dwStart
);
739 CONVERT_STREAM_to_THIS(This
->sInfo
.dwLength
);
740 CONVERT_STREAM_to_THIS(This
->sInfo
.dwSuggestedBufferSize
);