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shell32: Remove an unneeded local variable initialization.
[wine/multimedia.git] / dlls / winemp3.acm / mpegl3.c
blobd9390ae76f554be3964eb2a5b1fa9ad109107e36
1 /*
2 * MPEG Layer 3 handling
3 *
4 * Copyright (C) 2002 Eric Pouech
5 *
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20 */
21
22 #include <assert.h>
23 #include <stdarg.h>
24 #include <string.h>
25 #include "windef.h"
26 #include "winbase.h"
27 #include "wingdi.h"
28 #include "winuser.h"
29 #include "winnls.h"
30 #include "mmsystem.h"
31 #include "mmreg.h"
32 #include "msacm.h"
33 #include "msacmdrv.h"
34 #include "mpg123.h"
35 #include "mpglib.h"
36
37 #include "wine/debug.h"
38
39 WINE_DEFAULT_DEBUG_CHANNEL(mpeg3);
40
41 /***********************************************************************
42 * MPEG3_drvOpen
43 */
44 static LRESULT MPEG3_drvOpen(LPCSTR str)
45 {
46 return 1;
47 }
48
49 /***********************************************************************
50 * MPEG3_drvClose
51 */
52 static LRESULT MPEG3_drvClose(DWORD_PTR dwDevID)
53 {
54 return 1;
55 }
56
57 typedef struct tagAcmMpeg3Data
58 {
59 void (*convert)(PACMDRVSTREAMINSTANCE adsi,
60 const unsigned char*, LPDWORD, unsigned char*, LPDWORD);
61 struct mpstr mp;
62 } AcmMpeg3Data;
63
64 /* table to list all supported formats... those are the basic ones. this
65 * also helps given a unique index to each of the supported formats
66 */
67 typedef struct
68 {
69 int nChannels;
70 int nBits;
71 int rate;
72 } Format;
73
74 static const Format PCM_Formats[] =
75 {
76 {1, 8, 8000}, {2, 8, 8000}, {1, 16, 8000}, {2, 16, 8000},
77 {1, 8, 11025}, {2, 8, 11025}, {1, 16, 11025}, {2, 16, 11025},
78 {1, 8, 22050}, {2, 8, 22050}, {1, 16, 22050}, {2, 16, 22050},
79 {1, 8, 44100}, {2, 8, 44100}, {1, 16, 44100}, {2, 16, 44100},
80 };
81
82 static const Format MPEG3_Formats[] =
83 {
84 {1, 0, 8000}, {2, 0, 8000}, {1, 0, 11025}, {2, 0, 11025},
85 {1, 0, 22050}, {2, 0, 22050}, {1, 0, 44100}, {2, 0, 44100},
86 };
87
88 #define NUM_PCM_FORMATS (sizeof(PCM_Formats) / sizeof(PCM_Formats[0]))
89 #define NUM_MPEG3_FORMATS (sizeof(MPEG3_Formats) / sizeof(MPEG3_Formats[0]))
90
91 /***********************************************************************
92 * MPEG3_GetFormatIndex
93 */
94 static DWORD MPEG3_GetFormatIndex(LPWAVEFORMATEX wfx)
95 {
96 int i, hi;
97 const Format *fmts;
98
99 switch (wfx->wFormatTag)
100 {
101 case WAVE_FORMAT_PCM:
102 hi = NUM_PCM_FORMATS;
103 fmts = PCM_Formats;
104 break;
105 case WAVE_FORMAT_MPEGLAYER3:
106 hi = NUM_MPEG3_FORMATS;
107 fmts = MPEG3_Formats;
108 break;
109 default:
110 return 0xFFFFFFFF;
111 }
112
113 for (i = 0; i < hi; i++)
114 {
115 if (wfx->nChannels == fmts[i].nChannels &&
116 wfx->nSamplesPerSec == fmts[i].rate &&
117 wfx->wBitsPerSample == fmts[i].nBits)
118 return i;
119 }
120
121 return 0xFFFFFFFF;
122 }
123
124 /***********************************************************************
125 * R16
126 *
127 * Read a 16 bit sample (correctly handles endianess)
128 */
129 static inline short R16(const unsigned char* src)
130 {
131 return (short)((unsigned short)src[0] | ((unsigned short)src[1] << 8));
132 }
133
134 /***********************************************************************
135 * W16
136 *
137 * Write a 16 bit sample (correctly handles endianess)
138 */
139 static inline void W16(unsigned char* dst, short s)
140 {
141 dst[0] = LOBYTE(s);
142 dst[1] = HIBYTE(s);
143 }
144
145 static DWORD get_num_buffered_bytes(struct mpstr *mp)
146 {
147 DWORD numBuff = 0;
148 struct buf * p = mp->tail;
149 while (p) {
150 numBuff += p->size - p->pos;
151 p = p->next;
152 }
153 return numBuff;
154 }
155
156 static void mp3_horse(PACMDRVSTREAMINSTANCE adsi,
157 const unsigned char* src, LPDWORD nsrc,
158 unsigned char* dst, LPDWORD ndst)
159 {
160 AcmMpeg3Data* amd = (AcmMpeg3Data*)adsi->dwDriver;
161 int size, ret;
162 DWORD dpos = 0;
163 DWORD buffered_before;
164 DWORD buffered_during;
165 DWORD buffered_after;
166
167 buffered_before = get_num_buffered_bytes(&amd->mp);
168 ret = decodeMP3(&amd->mp, src, *nsrc, dst, *ndst, &size);
169 buffered_during = get_num_buffered_bytes(&amd->mp);
170 if (ret != MP3_OK)
171 {
172 *ndst = *nsrc = 0;
173 return;
174 }
175 do {
176 dpos += size;
177 if (*ndst - dpos < 4608) break;
178 ret = decodeMP3(&amd->mp, NULL, 0,
179 dst + dpos, *ndst - dpos, &size);
180 } while (ret == MP3_OK);
181 *ndst = dpos;
182
183 buffered_after = get_num_buffered_bytes(&amd->mp);
184 TRACE("before %d put %d during %d after %d\n", buffered_before, *nsrc, buffered_during, buffered_after);
185 }
186
187 /***********************************************************************
188 * MPEG3_DriverDetails
189 *
190 */
191 static LRESULT MPEG3_DriverDetails(PACMDRIVERDETAILSW add)
192 {
193 add->fccType = ACMDRIVERDETAILS_FCCTYPE_AUDIOCODEC;
194 add->fccComp = ACMDRIVERDETAILS_FCCCOMP_UNDEFINED;
195 add->wMid = 0xFF;
196 add->wPid = 0x00;
197 add->vdwACM = 0x01000000;
198 add->vdwDriver = 0x01000000;
199 add->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
200 add->cFormatTags = 2; /* PCM, MPEG3 */
201 add->cFilterTags = 0;
202 add->hicon = NULL;
203 MultiByteToWideChar( CP_ACP, 0, "WINE-MPEG3", -1,
204 add->szShortName, sizeof(add->szShortName)/sizeof(WCHAR) );
205 MultiByteToWideChar( CP_ACP, 0, "Wine MPEG3 decoder", -1,
206 add->szLongName, sizeof(add->szLongName)/sizeof(WCHAR) );
207 MultiByteToWideChar( CP_ACP, 0, "Brought to you by the Wine team (based on mpglib by Michael Hipp)...", -1,
208 add->szCopyright, sizeof(add->szCopyright)/sizeof(WCHAR) );
209 MultiByteToWideChar( CP_ACP, 0, "Refer to LICENSE file", -1,
210 add->szLicensing, sizeof(add->szLicensing)/sizeof(WCHAR) );
211 add->szFeatures[0] = 0;
212
213 return MMSYSERR_NOERROR;
214 }
215
216 /***********************************************************************
217 * MPEG3_FormatTagDetails
218 *
219 */
220 static LRESULT MPEG3_FormatTagDetails(PACMFORMATTAGDETAILSW aftd, DWORD dwQuery)
221 {
222 static const WCHAR szPcm[]={'P','C','M',0};
223 static const WCHAR szMpeg3[]={'M','P','e','g','3',0};
224
225 switch (dwQuery)
226 {
227 case ACM_FORMATTAGDETAILSF_INDEX:
228 if (aftd->dwFormatTagIndex >= 2) return ACMERR_NOTPOSSIBLE;
229 break;
230 case ACM_FORMATTAGDETAILSF_LARGESTSIZE:
231 if (aftd->dwFormatTag == WAVE_FORMAT_UNKNOWN)
232 {
233 aftd->dwFormatTagIndex = 1; /* WAVE_FORMAT_MPEGLAYER3 is bigger than PCM */
234 break;
235 }
236 /* fall thru */
237 case ACM_FORMATTAGDETAILSF_FORMATTAG:
238 switch (aftd->dwFormatTag)
239 {
240 case WAVE_FORMAT_PCM: aftd->dwFormatTagIndex = 0; break;
241 case WAVE_FORMAT_MPEGLAYER3: aftd->dwFormatTagIndex = 1; break;
242 default: return ACMERR_NOTPOSSIBLE;
243 }
244 break;
245 default:
246 WARN("Unsupported query %08x\n", dwQuery);
247 return MMSYSERR_NOTSUPPORTED;
248 }
249
250 aftd->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
251 switch (aftd->dwFormatTagIndex)
252 {
253 case 0:
254 aftd->dwFormatTag = WAVE_FORMAT_PCM;
255 aftd->cbFormatSize = sizeof(PCMWAVEFORMAT);
256 aftd->cStandardFormats = NUM_PCM_FORMATS;
257 lstrcpyW(aftd->szFormatTag, szPcm);
258 break;
259 case 1:
260 aftd->dwFormatTag = WAVE_FORMAT_MPEGLAYER3;
261 aftd->cbFormatSize = sizeof(MPEGLAYER3WAVEFORMAT);
262 aftd->cStandardFormats = NUM_MPEG3_FORMATS;
263 lstrcpyW(aftd->szFormatTag, szMpeg3);
264 break;
265 }
266 return MMSYSERR_NOERROR;
267 }
268
269 static void fill_in_wfx(unsigned cbwfx, WAVEFORMATEX* wfx, unsigned bit_rate)
270 {
271 MPEGLAYER3WAVEFORMAT* mp3wfx = (MPEGLAYER3WAVEFORMAT*)wfx;
272
273 wfx->nAvgBytesPerSec = bit_rate / 8;
274 if (cbwfx >= sizeof(WAVEFORMATEX))
275 wfx->cbSize = sizeof(MPEGLAYER3WAVEFORMAT) - sizeof(WAVEFORMATEX);
276 if (cbwfx >= sizeof(MPEGLAYER3WAVEFORMAT))
277 {
278 mp3wfx->wID = MPEGLAYER3_ID_MPEG;
279 mp3wfx->fdwFlags = MPEGLAYER3_FLAG_PADDING_OFF;
280 mp3wfx->nBlockSize = (bit_rate * 144) / wfx->nSamplesPerSec;
281 mp3wfx->nFramesPerBlock = 1;
282 mp3wfx->nCodecDelay = 0x0571;
283 }
284 }
285
286 /***********************************************************************
287 * MPEG3_FormatDetails
288 *
289 */
290 static LRESULT MPEG3_FormatDetails(PACMFORMATDETAILSW afd, DWORD dwQuery)
291 {
292 switch (dwQuery)
293 {
294 case ACM_FORMATDETAILSF_FORMAT:
295 if (MPEG3_GetFormatIndex(afd->pwfx) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE;
296 break;
297 case ACM_FORMATDETAILSF_INDEX:
298 afd->pwfx->wFormatTag = afd->dwFormatTag;
299 switch (afd->dwFormatTag)
300 {
301 case WAVE_FORMAT_PCM:
302 if (afd->dwFormatIndex >= NUM_PCM_FORMATS) return ACMERR_NOTPOSSIBLE;
303 afd->pwfx->nChannels = PCM_Formats[afd->dwFormatIndex].nChannels;
304 afd->pwfx->nSamplesPerSec = PCM_Formats[afd->dwFormatIndex].rate;
305 afd->pwfx->wBitsPerSample = PCM_Formats[afd->dwFormatIndex].nBits;
306 /* native MSACM uses a PCMWAVEFORMAT structure, so cbSize is not accessible
307 * afd->pwfx->cbSize = 0;
308 */
309 afd->pwfx->nBlockAlign =
310 (afd->pwfx->nChannels * afd->pwfx->wBitsPerSample) / 8;
311 afd->pwfx->nAvgBytesPerSec =
312 afd->pwfx->nSamplesPerSec * afd->pwfx->nBlockAlign;
313 break;
314 case WAVE_FORMAT_MPEGLAYER3:
315 if (afd->dwFormatIndex >= NUM_MPEG3_FORMATS) return ACMERR_NOTPOSSIBLE;
316 afd->pwfx->nChannels = MPEG3_Formats[afd->dwFormatIndex].nChannels;
317 afd->pwfx->nSamplesPerSec = MPEG3_Formats[afd->dwFormatIndex].rate;
318 afd->pwfx->wBitsPerSample = MPEG3_Formats[afd->dwFormatIndex].nBits;
319 afd->pwfx->nBlockAlign = 1;
320 fill_in_wfx(afd->cbwfx, afd->pwfx, 192000);
321 break;
322 default:
323 WARN("Unsupported tag %08x\n", afd->dwFormatTag);
324 return MMSYSERR_INVALPARAM;
325 }
326 break;
327 default:
328 WARN("Unsupported query %08x\n", dwQuery);
329 return MMSYSERR_NOTSUPPORTED;
330 }
331 afd->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
332 afd->szFormat[0] = 0; /* let MSACM format this for us... */
333
334 return MMSYSERR_NOERROR;
335 }
336
337 /***********************************************************************
338 * MPEG3_FormatSuggest
339 *
340 */
341 static LRESULT MPEG3_FormatSuggest(PACMDRVFORMATSUGGEST adfs)
342 {
343 /* some tests ... */
344 if (adfs->cbwfxSrc < sizeof(PCMWAVEFORMAT) ||
345 adfs->cbwfxDst < sizeof(PCMWAVEFORMAT) ||
346 MPEG3_GetFormatIndex(adfs->pwfxSrc) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE;
347 /* FIXME: should do those tests against the real size (according to format tag */
348
349 /* If no suggestion for destination, then copy source value */
350 if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_NCHANNELS))
351 adfs->pwfxDst->nChannels = adfs->pwfxSrc->nChannels;
352 if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_NSAMPLESPERSEC))
353 adfs->pwfxDst->nSamplesPerSec = adfs->pwfxSrc->nSamplesPerSec;
354
355 if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_WBITSPERSAMPLE))
356 {
357 if (adfs->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM)
358 adfs->pwfxDst->wBitsPerSample = 4;
359 else
360 adfs->pwfxDst->wBitsPerSample = 16;
361 }
362 if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_WFORMATTAG))
363 {
364 if (adfs->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM)
365 adfs->pwfxDst->wFormatTag = WAVE_FORMAT_MPEGLAYER3;
366 else
367 adfs->pwfxDst->wFormatTag = WAVE_FORMAT_PCM;
368 }
369
370 /* check if result is ok */
371 if (MPEG3_GetFormatIndex(adfs->pwfxDst) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE;
372
373 /* recompute other values */
374 switch (adfs->pwfxDst->wFormatTag)
375 {
376 case WAVE_FORMAT_PCM:
377 adfs->pwfxDst->nBlockAlign = (adfs->pwfxDst->nChannels * adfs->pwfxDst->wBitsPerSample) / 8;
378 adfs->pwfxDst->nAvgBytesPerSec = adfs->pwfxDst->nSamplesPerSec * adfs->pwfxDst->nBlockAlign;
379 break;
380 case WAVE_FORMAT_MPEGLAYER3:
381 adfs->pwfxDst->nBlockAlign = 1;
382 fill_in_wfx(adfs->cbwfxDst, adfs->pwfxDst, 192000);
383 break;
384 default:
385 FIXME("\n");
386 break;
387 }
388
389 return MMSYSERR_NOERROR;
390 }
391
392 /***********************************************************************
393 * MPEG3_Reset
394 *
395 */
396 static void MPEG3_Reset(PACMDRVSTREAMINSTANCE adsi, AcmMpeg3Data* aad)
397 {
398 }
399
400 /***********************************************************************
401 * MPEG3_StreamOpen
402 *
403 */
404 static LRESULT MPEG3_StreamOpen(PACMDRVSTREAMINSTANCE adsi)
405 {
406 AcmMpeg3Data* aad;
407
408 assert(!(adsi->fdwOpen & ACM_STREAMOPENF_ASYNC));
409
410 if (MPEG3_GetFormatIndex(adsi->pwfxSrc) == 0xFFFFFFFF ||
411 MPEG3_GetFormatIndex(adsi->pwfxDst) == 0xFFFFFFFF)
412 return ACMERR_NOTPOSSIBLE;
413
414 aad = HeapAlloc(GetProcessHeap(), 0, sizeof(AcmMpeg3Data));
415 if (aad == 0) return MMSYSERR_NOMEM;
416
417 adsi->dwDriver = (DWORD)aad;
418
419 if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
420 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
421 {
422 goto theEnd;
423 }
424 else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_MPEGLAYER3 &&
425 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
426 {
427 /* resampling or mono <=> stereo not available
428 * MPEG3 algo only define 16 bit per sample output
429 */
430 if (adsi->pwfxSrc->nSamplesPerSec != adsi->pwfxDst->nSamplesPerSec ||
431 adsi->pwfxSrc->nChannels != adsi->pwfxDst->nChannels ||
432 adsi->pwfxDst->wBitsPerSample != 16)
433 goto theEnd;
434 aad->convert = mp3_horse;
435 InitMP3(&aad->mp);
436 }
437 /* no encoding yet
438 else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
439 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_MPEGLAYER3)
440 */
441 else goto theEnd;
442 MPEG3_Reset(adsi, aad);
443
444 return MMSYSERR_NOERROR;
445
446 theEnd:
447 HeapFree(GetProcessHeap(), 0, aad);
448 adsi->dwDriver = 0L;
449 return MMSYSERR_NOTSUPPORTED;
450 }
451
452 /***********************************************************************
453 * MPEG3_StreamClose
454 *
455 */
456 static LRESULT MPEG3_StreamClose(PACMDRVSTREAMINSTANCE adsi)
457 {
458 ExitMP3(&((AcmMpeg3Data*)adsi->dwDriver)->mp);
459 HeapFree(GetProcessHeap(), 0, (void*)adsi->dwDriver);
460 return MMSYSERR_NOERROR;
461 }
462
463 /***********************************************************************
464 * MPEG3_round
465 *
466 */
467 static inline DWORD MPEG3_round(DWORD a, DWORD b, DWORD c)
468 {
469 assert(a && b && c);
470 /* to be sure, always return an entire number of c... */
471 return ((double)a * (double)b + (double)c - 1) / (double)c;
472 }
473
474 /***********************************************************************
475 * MPEG3_StreamSize
476 *
477 */
478 static LRESULT MPEG3_StreamSize(PACMDRVSTREAMINSTANCE adsi, PACMDRVSTREAMSIZE adss)
479 {
480 switch (adss->fdwSize)
481 {
482 case ACM_STREAMSIZEF_DESTINATION:
483 /* cbDstLength => cbSrcLength */
484 if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
485 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_MPEGLAYER3)
486 {
487 /* don't take block overhead into account, doesn't matter too much */
488 adss->cbSrcLength = adss->cbDstLength * 12;
489 }
490 else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_MPEGLAYER3 &&
491 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
492 {
493 FIXME("misses the block header overhead\n");
494 adss->cbSrcLength = 256 + adss->cbDstLength / 12;
495 }
496 else
497 {
498 return MMSYSERR_NOTSUPPORTED;
499 }
500 break;
501 case ACM_STREAMSIZEF_SOURCE:
502 /* cbSrcLength => cbDstLength */
503 if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
504 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_MPEGLAYER3)
505 {
506 FIXME("misses the block header overhead\n");
507 adss->cbDstLength = 256 + adss->cbSrcLength / 12;
508 }
509 else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_MPEGLAYER3 &&
510 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
511 {
512 /* don't take block overhead into account, doesn't matter too much */
513 adss->cbDstLength = adss->cbSrcLength * 12;
514 }
515 else
516 {
517 return MMSYSERR_NOTSUPPORTED;
518 }
519 break;
520 default:
521 WARN("Unsupported query %08x\n", adss->fdwSize);
522 return MMSYSERR_NOTSUPPORTED;
523 }
524 return MMSYSERR_NOERROR;
525 }
526
527 /***********************************************************************
528 * MPEG3_StreamConvert
529 *
530 */
531 static LRESULT MPEG3_StreamConvert(PACMDRVSTREAMINSTANCE adsi, PACMDRVSTREAMHEADER adsh)
532 {
533 AcmMpeg3Data* aad = (AcmMpeg3Data*)adsi->dwDriver;
534 DWORD nsrc = adsh->cbSrcLength;
535 DWORD ndst = adsh->cbDstLength;
536
537 if (adsh->fdwConvert &
538 ~(ACM_STREAMCONVERTF_BLOCKALIGN|
539 ACM_STREAMCONVERTF_END|
540 ACM_STREAMCONVERTF_START))
541 {
542 FIXME("Unsupported fdwConvert (%08x), ignoring it\n", adsh->fdwConvert);
543 }
544 /* ACM_STREAMCONVERTF_BLOCKALIGN
545 * currently all conversions are block aligned, so do nothing for this flag
546 * ACM_STREAMCONVERTF_END
547 * no pending data, so do nothing for this flag
548 */
549 if ((adsh->fdwConvert & ACM_STREAMCONVERTF_START))
550 {
551 MPEG3_Reset(adsi, aad);
552 }
553
554 aad->convert(adsi, adsh->pbSrc, &nsrc, adsh->pbDst, &ndst);
555 adsh->cbSrcLengthUsed = nsrc;
556 adsh->cbDstLengthUsed = ndst;
557
558 return MMSYSERR_NOERROR;
559 }
560
561 /**************************************************************************
562 * MPEG3_DriverProc [exported]
563 */
564 LRESULT CALLBACK MPEG3_DriverProc(DWORD_PTR dwDevID, HDRVR hDriv, UINT wMsg,
565 LPARAM dwParam1, LPARAM dwParam2)
566 {
567 TRACE("(%08lx %p %04x %08lx %08lx);\n",
568 dwDevID, hDriv, wMsg, dwParam1, dwParam2);
569
570 switch (wMsg)
571 {
572 case DRV_LOAD: return 1;
573 case DRV_FREE: return 1;
574 case DRV_OPEN: return MPEG3_drvOpen((LPSTR)dwParam1);
575 case DRV_CLOSE: return MPEG3_drvClose(dwDevID);
576 case DRV_ENABLE: return 1;
577 case DRV_DISABLE: return 1;
578 case DRV_QUERYCONFIGURE: return 1;
579 case DRV_CONFIGURE: MessageBoxA(0, "MPEG3 filter !", "Wine Driver", MB_OK); return 1;
580 case DRV_INSTALL: return DRVCNF_RESTART;
581 case DRV_REMOVE: return DRVCNF_RESTART;
582
583 case ACMDM_DRIVER_NOTIFY:
584 /* no caching from other ACM drivers is done so far */
585 return MMSYSERR_NOERROR;
586
587 case ACMDM_DRIVER_DETAILS:
588 return MPEG3_DriverDetails((PACMDRIVERDETAILSW)dwParam1);
589
590 case ACMDM_FORMATTAG_DETAILS:
591 return MPEG3_FormatTagDetails((PACMFORMATTAGDETAILSW)dwParam1, dwParam2);
592
593 case ACMDM_FORMAT_DETAILS:
594 return MPEG3_FormatDetails((PACMFORMATDETAILSW)dwParam1, dwParam2);
595
596 case ACMDM_FORMAT_SUGGEST:
597 return MPEG3_FormatSuggest((PACMDRVFORMATSUGGEST)dwParam1);
598
599 case ACMDM_STREAM_OPEN:
600 return MPEG3_StreamOpen((PACMDRVSTREAMINSTANCE)dwParam1);
601
602 case ACMDM_STREAM_CLOSE:
603 return MPEG3_StreamClose((PACMDRVSTREAMINSTANCE)dwParam1);
604
605 case ACMDM_STREAM_SIZE:
606 return MPEG3_StreamSize((PACMDRVSTREAMINSTANCE)dwParam1, (PACMDRVSTREAMSIZE)dwParam2);
607
608 case ACMDM_STREAM_CONVERT:
609 return MPEG3_StreamConvert((PACMDRVSTREAMINSTANCE)dwParam1, (PACMDRVSTREAMHEADER)dwParam2);
610
611 case ACMDM_HARDWARE_WAVE_CAPS_INPUT:
612 case ACMDM_HARDWARE_WAVE_CAPS_OUTPUT:
613 /* this converter is not a hardware driver */
614 case ACMDM_FILTERTAG_DETAILS:
615 case ACMDM_FILTER_DETAILS:
616 /* this converter is not a filter */
617 case ACMDM_STREAM_RESET:
618 /* only needed for asynchronous driver... we aren't, so just say it */
619 return MMSYSERR_NOTSUPPORTED;
620 case ACMDM_STREAM_PREPARE:
621 case ACMDM_STREAM_UNPREPARE:
622 /* nothing special to do here... so don't do anything */
623 return MMSYSERR_NOERROR;
624
625 default:
626 return DefDriverProc(dwDevID, hDriv, wMsg, dwParam1, dwParam2);
627 }
628 }
Maarten's multimedia branch