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push 337eb2e2d902d84a5d689451984c5832d7e04fc4
[wine/hacks.git] / dlls / winemp3.acm / mpegl3.c
blob23ba5865a4226f6c83f2d1692b45126b821b86f5
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 {1, 8, 48000}, {2, 8, 48000}, {1, 16, 48000}, {2, 16, 48000},
81 };
82
83 static const Format MPEG3_Formats[] =
84 {
85 {1, 0, 8000}, {2, 0, 8000}, {1, 0, 11025}, {2, 0, 11025},
86 {1, 0, 22050}, {2, 0, 22050}, {1, 0, 44100}, {2, 0, 44100},
87 {1, 0, 48000}, {2, 0, 48000},
88 };
89
90 #define NUM_PCM_FORMATS (sizeof(PCM_Formats) / sizeof(PCM_Formats[0]))
91 #define NUM_MPEG3_FORMATS (sizeof(MPEG3_Formats) / sizeof(MPEG3_Formats[0]))
92
93 /***********************************************************************
94 * MPEG3_GetFormatIndex
95 */
96 static DWORD MPEG3_GetFormatIndex(LPWAVEFORMATEX wfx)
97 {
98 int i, hi;
99 const Format *fmts;
100
101 switch (wfx->wFormatTag)
102 {
103 case WAVE_FORMAT_PCM:
104 hi = NUM_PCM_FORMATS;
105 fmts = PCM_Formats;
106 break;
107 case WAVE_FORMAT_MPEGLAYER3:
108 hi = NUM_MPEG3_FORMATS;
109 fmts = MPEG3_Formats;
110 break;
111 default:
112 return 0xFFFFFFFF;
113 }
114
115 for (i = 0; i < hi; i++)
116 {
117 if (wfx->nChannels == fmts[i].nChannels &&
118 wfx->nSamplesPerSec == fmts[i].rate &&
119 (wfx->wBitsPerSample == fmts[i].nBits || !fmts[i].nBits))
120 return i;
121 }
122
123 return 0xFFFFFFFF;
124 }
125
126 static DWORD get_num_buffered_bytes(struct mpstr *mp)
127 {
128 DWORD numBuff = 0;
129 struct buf * p = mp->tail;
130 while (p) {
131 numBuff += p->size - p->pos;
132 p = p->next;
133 }
134 return numBuff;
135 }
136
137 static void mp3_horse(PACMDRVSTREAMINSTANCE adsi,
138 const unsigned char* src, LPDWORD nsrc,
139 unsigned char* dst, LPDWORD ndst)
140 {
141 AcmMpeg3Data* amd = (AcmMpeg3Data*)adsi->dwDriver;
142 int size, ret;
143 DWORD dpos = 0;
144 DWORD buffered_before;
145 DWORD buffered_during;
146 DWORD buffered_after;
147
148 /* Skip leading ID v3 header */
149 if (amd->mp.fsizeold == -1 && !strncmp("ID3", (char*)src, 3))
150 {
151 UINT length = 10;
152 const char *header = (char *)src;
153
154 TRACE("Found ID3 v2.%d.%d\n", header[3], header[4]);
155 length += (header[6] & 0x7F) << 21;
156 length += (header[7] & 0x7F) << 14;
157 length += (header[8] & 0x7F) << 7;
158 length += (header[9] & 0x7F);
159 TRACE("Length: %u\n", length);
160 *nsrc = length;
161 *ndst = 0;
162 return;
163 }
164
165 buffered_before = get_num_buffered_bytes(&amd->mp);
166 ret = decodeMP3(&amd->mp, src, *nsrc, dst, *ndst, &size);
167 buffered_during = get_num_buffered_bytes(&amd->mp);
168 if (ret != MP3_OK)
169 {
170 if (ret == MP3_ERR)
171 FIXME("Error occurred during decoding!\n");
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 *nsrc -= buffered_after;
187 ClearMP3Buffer(&amd->mp);
188 }
189
190 /***********************************************************************
191 * MPEG3_DriverDetails
192 *
193 */
194 static LRESULT MPEG3_DriverDetails(PACMDRIVERDETAILSW add)
195 {
196 add->fccType = ACMDRIVERDETAILS_FCCTYPE_AUDIOCODEC;
197 add->fccComp = ACMDRIVERDETAILS_FCCCOMP_UNDEFINED;
198 add->wMid = 0xFF;
199 add->wPid = 0x00;
200 add->vdwACM = 0x01000000;
201 add->vdwDriver = 0x01000000;
202 add->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
203 add->cFormatTags = 2; /* PCM, MPEG3 */
204 add->cFilterTags = 0;
205 add->hicon = NULL;
206 MultiByteToWideChar( CP_ACP, 0, "WINE-MPEG3", -1,
207 add->szShortName, sizeof(add->szShortName)/sizeof(WCHAR) );
208 MultiByteToWideChar( CP_ACP, 0, "Wine MPEG3 decoder", -1,
209 add->szLongName, sizeof(add->szLongName)/sizeof(WCHAR) );
210 MultiByteToWideChar( CP_ACP, 0, "Brought to you by the Wine team (based on mpglib by Michael Hipp)...", -1,
211 add->szCopyright, sizeof(add->szCopyright)/sizeof(WCHAR) );
212 MultiByteToWideChar( CP_ACP, 0, "Refer to LICENSE file", -1,
213 add->szLicensing, sizeof(add->szLicensing)/sizeof(WCHAR) );
214 add->szFeatures[0] = 0;
215
216 return MMSYSERR_NOERROR;
217 }
218
219 /***********************************************************************
220 * MPEG3_FormatTagDetails
221 *
222 */
223 static LRESULT MPEG3_FormatTagDetails(PACMFORMATTAGDETAILSW aftd, DWORD dwQuery)
224 {
225 static const WCHAR szPcm[]={'P','C','M',0};
226 static const WCHAR szMpeg3[]={'M','P','e','g','3',0};
227
228 switch (dwQuery)
229 {
230 case ACM_FORMATTAGDETAILSF_INDEX:
231 if (aftd->dwFormatTagIndex >= 2) return ACMERR_NOTPOSSIBLE;
232 break;
233 case ACM_FORMATTAGDETAILSF_LARGESTSIZE:
234 if (aftd->dwFormatTag == WAVE_FORMAT_UNKNOWN)
235 {
236 aftd->dwFormatTagIndex = 1; /* WAVE_FORMAT_MPEGLAYER3 is bigger than PCM */
237 break;
238 }
239 /* fall thru */
240 case ACM_FORMATTAGDETAILSF_FORMATTAG:
241 switch (aftd->dwFormatTag)
242 {
243 case WAVE_FORMAT_PCM: aftd->dwFormatTagIndex = 0; break;
244 case WAVE_FORMAT_MPEGLAYER3: aftd->dwFormatTagIndex = 1; break;
245 default: return ACMERR_NOTPOSSIBLE;
246 }
247 break;
248 default:
249 WARN("Unsupported query %08x\n", dwQuery);
250 return MMSYSERR_NOTSUPPORTED;
251 }
252
253 aftd->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
254 switch (aftd->dwFormatTagIndex)
255 {
256 case 0:
257 aftd->dwFormatTag = WAVE_FORMAT_PCM;
258 aftd->cbFormatSize = sizeof(PCMWAVEFORMAT);
259 aftd->cStandardFormats = NUM_PCM_FORMATS;
260 lstrcpyW(aftd->szFormatTag, szPcm);
261 break;
262 case 1:
263 aftd->dwFormatTag = WAVE_FORMAT_MPEGLAYER3;
264 aftd->cbFormatSize = sizeof(MPEGLAYER3WAVEFORMAT);
265 aftd->cStandardFormats = NUM_MPEG3_FORMATS;
266 lstrcpyW(aftd->szFormatTag, szMpeg3);
267 break;
268 }
269 return MMSYSERR_NOERROR;
270 }
271
272 static void fill_in_wfx(unsigned cbwfx, WAVEFORMATEX* wfx, unsigned bit_rate)
273 {
274 MPEGLAYER3WAVEFORMAT* mp3wfx = (MPEGLAYER3WAVEFORMAT*)wfx;
275
276 wfx->nAvgBytesPerSec = bit_rate / 8;
277 if (cbwfx >= sizeof(WAVEFORMATEX))
278 wfx->cbSize = sizeof(MPEGLAYER3WAVEFORMAT) - sizeof(WAVEFORMATEX);
279 if (cbwfx >= sizeof(MPEGLAYER3WAVEFORMAT))
280 {
281 mp3wfx->wID = MPEGLAYER3_ID_MPEG;
282 mp3wfx->fdwFlags = MPEGLAYER3_FLAG_PADDING_OFF;
283 mp3wfx->nBlockSize = (bit_rate * 144) / wfx->nSamplesPerSec;
284 mp3wfx->nFramesPerBlock = 1;
285 mp3wfx->nCodecDelay = 0x0571;
286 }
287 }
288
289 /***********************************************************************
290 * MPEG3_FormatDetails
291 *
292 */
293 static LRESULT MPEG3_FormatDetails(PACMFORMATDETAILSW afd, DWORD dwQuery)
294 {
295 switch (dwQuery)
296 {
297 case ACM_FORMATDETAILSF_FORMAT:
298 if (MPEG3_GetFormatIndex(afd->pwfx) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE;
299 break;
300 case ACM_FORMATDETAILSF_INDEX:
301 afd->pwfx->wFormatTag = afd->dwFormatTag;
302 switch (afd->dwFormatTag)
303 {
304 case WAVE_FORMAT_PCM:
305 if (afd->dwFormatIndex >= NUM_PCM_FORMATS) return ACMERR_NOTPOSSIBLE;
306 afd->pwfx->nChannels = PCM_Formats[afd->dwFormatIndex].nChannels;
307 afd->pwfx->nSamplesPerSec = PCM_Formats[afd->dwFormatIndex].rate;
308 afd->pwfx->wBitsPerSample = PCM_Formats[afd->dwFormatIndex].nBits;
309 /* native MSACM uses a PCMWAVEFORMAT structure, so cbSize is not accessible
310 * afd->pwfx->cbSize = 0;
311 */
312 afd->pwfx->nBlockAlign =
313 (afd->pwfx->nChannels * afd->pwfx->wBitsPerSample) / 8;
314 afd->pwfx->nAvgBytesPerSec =
315 afd->pwfx->nSamplesPerSec * afd->pwfx->nBlockAlign;
316 break;
317 case WAVE_FORMAT_MPEGLAYER3:
318 if (afd->dwFormatIndex >= NUM_MPEG3_FORMATS) return ACMERR_NOTPOSSIBLE;
319 afd->pwfx->nChannels = MPEG3_Formats[afd->dwFormatIndex].nChannels;
320 afd->pwfx->nSamplesPerSec = MPEG3_Formats[afd->dwFormatIndex].rate;
321 afd->pwfx->wBitsPerSample = MPEG3_Formats[afd->dwFormatIndex].nBits;
322 afd->pwfx->nBlockAlign = 1;
323 fill_in_wfx(afd->cbwfx, afd->pwfx, 192000);
324 break;
325 default:
326 WARN("Unsupported tag %08x\n", afd->dwFormatTag);
327 return MMSYSERR_INVALPARAM;
328 }
329 break;
330 default:
331 WARN("Unsupported query %08x\n", dwQuery);
332 return MMSYSERR_NOTSUPPORTED;
333 }
334 afd->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
335 afd->szFormat[0] = 0; /* let MSACM format this for us... */
336
337 return MMSYSERR_NOERROR;
338 }
339
340 /***********************************************************************
341 * MPEG3_FormatSuggest
342 *
343 */
344 static LRESULT MPEG3_FormatSuggest(PACMDRVFORMATSUGGEST adfs)
345 {
346 /* some tests ... */
347 if (adfs->cbwfxSrc < sizeof(PCMWAVEFORMAT) ||
348 adfs->cbwfxDst < sizeof(PCMWAVEFORMAT) ||
349 MPEG3_GetFormatIndex(adfs->pwfxSrc) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE;
350 /* FIXME: should do those tests against the real size (according to format tag */
351
352 /* If no suggestion for destination, then copy source value */
353 if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_NCHANNELS))
354 adfs->pwfxDst->nChannels = adfs->pwfxSrc->nChannels;
355 if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_NSAMPLESPERSEC))
356 adfs->pwfxDst->nSamplesPerSec = adfs->pwfxSrc->nSamplesPerSec;
357
358 if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_WBITSPERSAMPLE))
359 {
360 if (adfs->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM)
361 adfs->pwfxDst->wBitsPerSample = 4;
362 else
363 adfs->pwfxDst->wBitsPerSample = 16;
364 }
365 if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_WFORMATTAG))
366 {
367 if (adfs->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM)
368 adfs->pwfxDst->wFormatTag = WAVE_FORMAT_MPEGLAYER3;
369 else
370 adfs->pwfxDst->wFormatTag = WAVE_FORMAT_PCM;
371 }
372
373 /* check if result is ok */
374 if (MPEG3_GetFormatIndex(adfs->pwfxDst) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE;
375
376 /* recompute other values */
377 switch (adfs->pwfxDst->wFormatTag)
378 {
379 case WAVE_FORMAT_PCM:
380 adfs->pwfxDst->nBlockAlign = (adfs->pwfxDst->nChannels * adfs->pwfxDst->wBitsPerSample) / 8;
381 adfs->pwfxDst->nAvgBytesPerSec = adfs->pwfxDst->nSamplesPerSec * adfs->pwfxDst->nBlockAlign;
382 break;
383 case WAVE_FORMAT_MPEGLAYER3:
384 adfs->pwfxDst->nBlockAlign = 1;
385 fill_in_wfx(adfs->cbwfxDst, adfs->pwfxDst, 192000);
386 break;
387 default:
388 FIXME("\n");
389 break;
390 }
391
392 return MMSYSERR_NOERROR;
393 }
394
395 /***********************************************************************
396 * MPEG3_Reset
397 *
398 */
399 static void MPEG3_Reset(PACMDRVSTREAMINSTANCE adsi, AcmMpeg3Data* aad)
400 {
401 ClearMP3Buffer(&aad->mp);
402 InitMP3(&aad->mp);
403 }
404
405 /***********************************************************************
406 * MPEG3_StreamOpen
407 *
408 */
409 static LRESULT MPEG3_StreamOpen(PACMDRVSTREAMINSTANCE adsi)
410 {
411 AcmMpeg3Data* aad;
412
413 assert(!(adsi->fdwOpen & ACM_STREAMOPENF_ASYNC));
414
415 if (MPEG3_GetFormatIndex(adsi->pwfxSrc) == 0xFFFFFFFF ||
416 MPEG3_GetFormatIndex(adsi->pwfxDst) == 0xFFFFFFFF)
417 return ACMERR_NOTPOSSIBLE;
418
419 aad = HeapAlloc(GetProcessHeap(), 0, sizeof(AcmMpeg3Data));
420 if (aad == 0) return MMSYSERR_NOMEM;
421
422 adsi->dwDriver = (DWORD)aad;
423
424 if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
425 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
426 {
427 goto theEnd;
428 }
429 else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_MPEGLAYER3 &&
430 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
431 {
432 /* resampling or mono <=> stereo not available
433 * MPEG3 algo only define 16 bit per sample output
434 */
435 if (adsi->pwfxSrc->nSamplesPerSec != adsi->pwfxDst->nSamplesPerSec ||
436 adsi->pwfxSrc->nChannels != adsi->pwfxDst->nChannels ||
437 adsi->pwfxDst->wBitsPerSample != 16)
438 goto theEnd;
439 aad->convert = mp3_horse;
440 InitMP3(&aad->mp);
441 }
442 /* no encoding yet
443 else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
444 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_MPEGLAYER3)
445 */
446 else goto theEnd;
447 MPEG3_Reset(adsi, aad);
448
449 return MMSYSERR_NOERROR;
450
451 theEnd:
452 HeapFree(GetProcessHeap(), 0, aad);
453 adsi->dwDriver = 0L;
454 return MMSYSERR_NOTSUPPORTED;
455 }
456
457 /***********************************************************************
458 * MPEG3_StreamClose
459 *
460 */
461 static LRESULT MPEG3_StreamClose(PACMDRVSTREAMINSTANCE adsi)
462 {
463 ClearMP3Buffer(&((AcmMpeg3Data*)adsi->dwDriver)->mp);
464 HeapFree(GetProcessHeap(), 0, (void*)adsi->dwDriver);
465 return MMSYSERR_NOERROR;
466 }
467
468 /***********************************************************************
469 * MPEG3_StreamSize
470 *
471 */
472 static LRESULT MPEG3_StreamSize(PACMDRVSTREAMINSTANCE adsi, PACMDRVSTREAMSIZE adss)
473 {
474 switch (adss->fdwSize)
475 {
476 case ACM_STREAMSIZEF_DESTINATION:
477 /* cbDstLength => cbSrcLength */
478 if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
479 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_MPEGLAYER3)
480 {
481 /* don't take block overhead into account, doesn't matter too much */
482 adss->cbSrcLength = adss->cbDstLength * 12;
483 }
484 else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_MPEGLAYER3 &&
485 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
486 {
487 FIXME("misses the block header overhead\n");
488 adss->cbSrcLength = 256 + adss->cbDstLength / 12;
489 }
490 else
491 {
492 return MMSYSERR_NOTSUPPORTED;
493 }
494 break;
495 case ACM_STREAMSIZEF_SOURCE:
496 /* cbSrcLength => cbDstLength */
497 if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
498 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_MPEGLAYER3)
499 {
500 FIXME("misses the block header overhead\n");
501 adss->cbDstLength = 256 + adss->cbSrcLength / 12;
502 }
503 else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_MPEGLAYER3 &&
504 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
505 {
506 /* don't take block overhead into account, doesn't matter too much */
507 adss->cbDstLength = adss->cbSrcLength * 12;
508 }
509 else
510 {
511 return MMSYSERR_NOTSUPPORTED;
512 }
513 break;
514 default:
515 WARN("Unsupported query %08x\n", adss->fdwSize);
516 return MMSYSERR_NOTSUPPORTED;
517 }
518 return MMSYSERR_NOERROR;
519 }
520
521 /***********************************************************************
522 * MPEG3_StreamConvert
523 *
524 */
525 static LRESULT MPEG3_StreamConvert(PACMDRVSTREAMINSTANCE adsi, PACMDRVSTREAMHEADER adsh)
526 {
527 AcmMpeg3Data* aad = (AcmMpeg3Data*)adsi->dwDriver;
528 DWORD nsrc = adsh->cbSrcLength;
529 DWORD ndst = adsh->cbDstLength;
530
531 if (adsh->fdwConvert &
532 ~(ACM_STREAMCONVERTF_BLOCKALIGN|
533 ACM_STREAMCONVERTF_END|
534 ACM_STREAMCONVERTF_START))
535 {
536 FIXME("Unsupported fdwConvert (%08x), ignoring it\n", adsh->fdwConvert);
537 }
538 /* ACM_STREAMCONVERTF_BLOCKALIGN
539 * currently all conversions are block aligned, so do nothing for this flag
540 * ACM_STREAMCONVERTF_END
541 * no pending data, so do nothing for this flag
542 */
543 if ((adsh->fdwConvert & ACM_STREAMCONVERTF_START))
544 {
545 MPEG3_Reset(adsi, aad);
546 }
547
548 aad->convert(adsi, adsh->pbSrc, &nsrc, adsh->pbDst, &ndst);
549 adsh->cbSrcLengthUsed = nsrc;
550 adsh->cbDstLengthUsed = ndst;
551
552 return MMSYSERR_NOERROR;
553 }
554
555 /**************************************************************************
556 * MPEG3_DriverProc [exported]
557 */
558 LRESULT CALLBACK MPEG3_DriverProc(DWORD_PTR dwDevID, HDRVR hDriv, UINT wMsg,
559 LPARAM dwParam1, LPARAM dwParam2)
560 {
561 TRACE("(%08lx %p %04x %08lx %08lx);\n",
562 dwDevID, hDriv, wMsg, dwParam1, dwParam2);
563
564 switch (wMsg)
565 {
566 case DRV_LOAD: return 1;
567 case DRV_FREE: return 1;
568 case DRV_OPEN: return MPEG3_drvOpen((LPSTR)dwParam1);
569 case DRV_CLOSE: return MPEG3_drvClose(dwDevID);
570 case DRV_ENABLE: return 1;
571 case DRV_DISABLE: return 1;
572 case DRV_QUERYCONFIGURE: return 1;
573 case DRV_CONFIGURE: MessageBoxA(0, "MPEG3 filter !", "Wine Driver", MB_OK); return 1;
574 case DRV_INSTALL: return DRVCNF_RESTART;
575 case DRV_REMOVE: return DRVCNF_RESTART;
576
577 case ACMDM_DRIVER_NOTIFY:
578 /* no caching from other ACM drivers is done so far */
579 return MMSYSERR_NOERROR;
580
581 case ACMDM_DRIVER_DETAILS:
582 return MPEG3_DriverDetails((PACMDRIVERDETAILSW)dwParam1);
583
584 case ACMDM_FORMATTAG_DETAILS:
585 return MPEG3_FormatTagDetails((PACMFORMATTAGDETAILSW)dwParam1, dwParam2);
586
587 case ACMDM_FORMAT_DETAILS:
588 return MPEG3_FormatDetails((PACMFORMATDETAILSW)dwParam1, dwParam2);
589
590 case ACMDM_FORMAT_SUGGEST:
591 return MPEG3_FormatSuggest((PACMDRVFORMATSUGGEST)dwParam1);
592
593 case ACMDM_STREAM_OPEN:
594 return MPEG3_StreamOpen((PACMDRVSTREAMINSTANCE)dwParam1);
595
596 case ACMDM_STREAM_CLOSE:
597 return MPEG3_StreamClose((PACMDRVSTREAMINSTANCE)dwParam1);
598
599 case ACMDM_STREAM_SIZE:
600 return MPEG3_StreamSize((PACMDRVSTREAMINSTANCE)dwParam1, (PACMDRVSTREAMSIZE)dwParam2);
601
602 case ACMDM_STREAM_CONVERT:
603 return MPEG3_StreamConvert((PACMDRVSTREAMINSTANCE)dwParam1, (PACMDRVSTREAMHEADER)dwParam2);
604
605 case ACMDM_HARDWARE_WAVE_CAPS_INPUT:
606 case ACMDM_HARDWARE_WAVE_CAPS_OUTPUT:
607 /* this converter is not a hardware driver */
608 case ACMDM_FILTERTAG_DETAILS:
609 case ACMDM_FILTER_DETAILS:
610 /* this converter is not a filter */
611 case ACMDM_STREAM_RESET:
612 /* only needed for asynchronous driver... we aren't, so just say it */
613 return MMSYSERR_NOTSUPPORTED;
614 case ACMDM_STREAM_PREPARE:
615 case ACMDM_STREAM_UNPREPARE:
616 /* nothing special to do here... so don't do anything */
617 return MMSYSERR_NOERROR;
618
619 default:
620 return DefDriverProc(dwDevID, hDriv, wMsg, dwParam1, dwParam2);
621 }
622 }
useful hacks and other patches not (yet) suitable for mainline