f30bfef7cfdabc46692860c83a225bbfff1be628
[reactos.git] / reactos / dll / win32 / winemp3.acm / mpegl3.c
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, 12000}, {2, 8, 12000}, {1, 16, 12000}, {2, 16, 12000},
79 {1, 8, 16000}, {2, 8, 16000}, {1, 16, 16000}, {2, 16, 16000},
80 {1, 8, 22050}, {2, 8, 22050}, {1, 16, 22050}, {2, 16, 22050},
81 {1, 8, 24000}, {2, 8, 24000}, {1, 16, 24000}, {2, 16, 24000},
82 {1, 8, 32000}, {2, 8, 32000}, {1, 16, 32000}, {2, 16, 32000},
83 {1, 8, 44100}, {2, 8, 44100}, {1, 16, 44100}, {2, 16, 44100},
84 {1, 8, 48000}, {2, 8, 48000}, {1, 16, 48000}, {2, 16, 48000}
85 };
86
87 static const Format MPEG3_Formats[] =
88 {
89 {1, 0, 8000}, {2, 0, 8000},
90 {1, 0, 11025}, {2, 0, 11025},
91 {1, 0, 12000}, {2, 0, 12000},
92 {1, 0, 16000}, {2, 0, 16000},
93 {1, 0, 22050}, {2, 0, 22050},
94 {1, 0, 24000}, {2, 0, 24000},
95 {1, 0, 32000}, {2, 0, 32000},
96 {1, 0, 44100}, {2, 0, 44100},
97 {1, 0, 48000}, {2, 0, 48000}
98 };
99
100 #define NUM_PCM_FORMATS (sizeof(PCM_Formats) / sizeof(PCM_Formats[0]))
101 #define NUM_MPEG3_FORMATS (sizeof(MPEG3_Formats) / sizeof(MPEG3_Formats[0]))
102
103 /***********************************************************************
104 * MPEG3_GetFormatIndex
105 */
106 static DWORD MPEG3_GetFormatIndex(LPWAVEFORMATEX wfx)
107 {
108 int i, hi;
109 const Format *fmts;
110
111 switch (wfx->wFormatTag)
112 {
113 case WAVE_FORMAT_PCM:
114 hi = NUM_PCM_FORMATS;
115 fmts = PCM_Formats;
116 break;
117 case WAVE_FORMAT_MPEGLAYER3:
118 hi = NUM_MPEG3_FORMATS;
119 fmts = MPEG3_Formats;
120 break;
121 default:
122 return 0xFFFFFFFF;
123 }
124
125 for (i = 0; i < hi; i++)
126 {
127 if (wfx->nChannels == fmts[i].nChannels &&
128 wfx->nSamplesPerSec == fmts[i].rate &&
129 (wfx->wBitsPerSample == fmts[i].nBits || !fmts[i].nBits))
130 return i;
131 }
132
133 return 0xFFFFFFFF;
134 }
135
136 static DWORD get_num_buffered_bytes(struct mpstr *mp)
137 {
138 DWORD numBuff = 0;
139 struct buf * p = mp->tail;
140 while (p) {
141 numBuff += p->size - p->pos;
142 p = p->next;
143 }
144 return numBuff;
145 }
146
147 static void mp3_horse(PACMDRVSTREAMINSTANCE adsi,
148 const unsigned char* src, LPDWORD nsrc,
149 unsigned char* dst, LPDWORD ndst)
150 {
151 AcmMpeg3Data* amd = (AcmMpeg3Data*)adsi->dwDriver;
152 int size, ret;
153 DWORD dpos = 0;
154 DWORD buffered_before;
155 DWORD buffered_during;
156 DWORD buffered_after;
157
158 /* Skip leading ID v3 header */
159 if (amd->mp.fsizeold == -1 && !strncmp("ID3", (char*)src, 3))
160 {
161 UINT length = 10;
162 const char *header = (char *)src;
163
164 TRACE("Found ID3 v2.%d.%d\n", header[3], header[4]);
165 length += (header[6] & 0x7F) << 21;
166 length += (header[7] & 0x7F) << 14;
167 length += (header[8] & 0x7F) << 7;
168 length += (header[9] & 0x7F);
169 TRACE("Length: %u\n", length);
170 *nsrc = length;
171 *ndst = 0;
172 return;
173 }
174
175 buffered_before = get_num_buffered_bytes(&amd->mp);
176 ret = decodeMP3(&amd->mp, src, *nsrc, dst, *ndst, &size);
177 buffered_during = get_num_buffered_bytes(&amd->mp);
178 if (ret != MP3_OK)
179 {
180 if (ret == MP3_ERR)
181 FIXME("Error occurred during decoding!\n");
182 *ndst = *nsrc = 0;
183 return;
184 }
185 do {
186 dpos += size;
187 if (*ndst - dpos < 4608) break;
188 ret = decodeMP3(&amd->mp, NULL, 0,
189 dst + dpos, *ndst - dpos, &size);
190 } while (ret == MP3_OK);
191 *ndst = dpos;
192
193 buffered_after = get_num_buffered_bytes(&amd->mp);
194 TRACE("before %d put %d during %d after %d\n", buffered_before, *nsrc, buffered_during, buffered_after);
195
196 *nsrc -= buffered_after;
197 ClearMP3Buffer(&amd->mp);
198 }
199
200 /***********************************************************************
201 * MPEG3_DriverDetails
202 *
203 */
204 static LRESULT MPEG3_DriverDetails(PACMDRIVERDETAILSW add)
205 {
206 add->fccType = ACMDRIVERDETAILS_FCCTYPE_AUDIOCODEC;
207 add->fccComp = ACMDRIVERDETAILS_FCCCOMP_UNDEFINED;
208 add->wMid = 0xFF;
209 add->wPid = 0x00;
210 add->vdwACM = 0x01000000;
211 add->vdwDriver = 0x01000000;
212 add->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
213 add->cFormatTags = 2; /* PCM, MPEG3 */
214 add->cFilterTags = 0;
215 add->hicon = NULL;
216 MultiByteToWideChar( CP_ACP, 0, "WINE-MPEG3", -1,
217 add->szShortName, sizeof(add->szShortName)/sizeof(WCHAR) );
218 MultiByteToWideChar( CP_ACP, 0, "Wine MPEG3 decoder", -1,
219 add->szLongName, sizeof(add->szLongName)/sizeof(WCHAR) );
220 MultiByteToWideChar( CP_ACP, 0, "Brought to you by the Wine team (based on mpglib by Michael Hipp)...", -1,
221 add->szCopyright, sizeof(add->szCopyright)/sizeof(WCHAR) );
222 MultiByteToWideChar( CP_ACP, 0, "Refer to LICENSE file", -1,
223 add->szLicensing, sizeof(add->szLicensing)/sizeof(WCHAR) );
224 add->szFeatures[0] = 0;
225
226 return MMSYSERR_NOERROR;
227 }
228
229 /***********************************************************************
230 * MPEG3_FormatTagDetails
231 *
232 */
233 static LRESULT MPEG3_FormatTagDetails(PACMFORMATTAGDETAILSW aftd, DWORD dwQuery)
234 {
235 static const WCHAR szPcm[]={'P','C','M',0};
236 static const WCHAR szMpeg3[]={'M','P','e','g','3',0};
237
238 switch (dwQuery)
239 {
240 case ACM_FORMATTAGDETAILSF_INDEX:
241 if (aftd->dwFormatTagIndex >= 2) return ACMERR_NOTPOSSIBLE;
242 break;
243 case ACM_FORMATTAGDETAILSF_LARGESTSIZE:
244 if (aftd->dwFormatTag == WAVE_FORMAT_UNKNOWN)
245 {
246 aftd->dwFormatTagIndex = 1; /* WAVE_FORMAT_MPEGLAYER3 is bigger than PCM */
247 break;
248 }
249 /* fall thru */
250 case ACM_FORMATTAGDETAILSF_FORMATTAG:
251 switch (aftd->dwFormatTag)
252 {
253 case WAVE_FORMAT_PCM: aftd->dwFormatTagIndex = 0; break;
254 case WAVE_FORMAT_MPEGLAYER3: aftd->dwFormatTagIndex = 1; break;
255 default: return ACMERR_NOTPOSSIBLE;
256 }
257 break;
258 default:
259 WARN("Unsupported query %08x\n", dwQuery);
260 return MMSYSERR_NOTSUPPORTED;
261 }
262
263 aftd->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
264 switch (aftd->dwFormatTagIndex)
265 {
266 case 0:
267 aftd->dwFormatTag = WAVE_FORMAT_PCM;
268 aftd->cbFormatSize = sizeof(PCMWAVEFORMAT);
269 aftd->cStandardFormats = NUM_PCM_FORMATS;
270 lstrcpyW(aftd->szFormatTag, szPcm);
271 break;
272 case 1:
273 aftd->dwFormatTag = WAVE_FORMAT_MPEGLAYER3;
274 aftd->cbFormatSize = sizeof(MPEGLAYER3WAVEFORMAT);
275 aftd->cStandardFormats = NUM_MPEG3_FORMATS;
276 lstrcpyW(aftd->szFormatTag, szMpeg3);
277 break;
278 }
279 return MMSYSERR_NOERROR;
280 }
281
282 static void fill_in_wfx(unsigned cbwfx, WAVEFORMATEX* wfx, unsigned bit_rate)
283 {
284 MPEGLAYER3WAVEFORMAT* mp3wfx = (MPEGLAYER3WAVEFORMAT*)wfx;
285
286 wfx->nAvgBytesPerSec = bit_rate / 8;
287 if (cbwfx >= sizeof(WAVEFORMATEX))
288 wfx->cbSize = sizeof(MPEGLAYER3WAVEFORMAT) - sizeof(WAVEFORMATEX);
289 if (cbwfx >= sizeof(MPEGLAYER3WAVEFORMAT))
290 {
291 mp3wfx->wID = MPEGLAYER3_ID_MPEG;
292 mp3wfx->fdwFlags = MPEGLAYER3_FLAG_PADDING_OFF;
293 mp3wfx->nBlockSize = (bit_rate * 144) / wfx->nSamplesPerSec;
294 mp3wfx->nFramesPerBlock = 1;
295 mp3wfx->nCodecDelay = 0x0571;
296 }
297 }
298
299 /***********************************************************************
300 * MPEG3_FormatDetails
301 *
302 */
303 static LRESULT MPEG3_FormatDetails(PACMFORMATDETAILSW afd, DWORD dwQuery)
304 {
305 switch (dwQuery)
306 {
307 case ACM_FORMATDETAILSF_FORMAT:
308 if (MPEG3_GetFormatIndex(afd->pwfx) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE;
309 break;
310 case ACM_FORMATDETAILSF_INDEX:
311 afd->pwfx->wFormatTag = afd->dwFormatTag;
312 switch (afd->dwFormatTag)
313 {
314 case WAVE_FORMAT_PCM:
315 if (afd->dwFormatIndex >= NUM_PCM_FORMATS) return ACMERR_NOTPOSSIBLE;
316 afd->pwfx->nChannels = PCM_Formats[afd->dwFormatIndex].nChannels;
317 afd->pwfx->nSamplesPerSec = PCM_Formats[afd->dwFormatIndex].rate;
318 afd->pwfx->wBitsPerSample = PCM_Formats[afd->dwFormatIndex].nBits;
319 /* native MSACM uses a PCMWAVEFORMAT structure, so cbSize is not accessible
320 * afd->pwfx->cbSize = 0;
321 */
322 afd->pwfx->nBlockAlign =
323 (afd->pwfx->nChannels * afd->pwfx->wBitsPerSample) / 8;
324 afd->pwfx->nAvgBytesPerSec =
325 afd->pwfx->nSamplesPerSec * afd->pwfx->nBlockAlign;
326 break;
327 case WAVE_FORMAT_MPEGLAYER3:
328 if (afd->dwFormatIndex >= NUM_MPEG3_FORMATS) return ACMERR_NOTPOSSIBLE;
329 afd->pwfx->nChannels = MPEG3_Formats[afd->dwFormatIndex].nChannels;
330 afd->pwfx->nSamplesPerSec = MPEG3_Formats[afd->dwFormatIndex].rate;
331 afd->pwfx->wBitsPerSample = MPEG3_Formats[afd->dwFormatIndex].nBits;
332 afd->pwfx->nBlockAlign = 1;
333 fill_in_wfx(afd->cbwfx, afd->pwfx, 192000);
334 break;
335 default:
336 WARN("Unsupported tag %08x\n", afd->dwFormatTag);
337 return MMSYSERR_INVALPARAM;
338 }
339 break;
340 default:
341 WARN("Unsupported query %08x\n", dwQuery);
342 return MMSYSERR_NOTSUPPORTED;
343 }
344 afd->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
345 afd->szFormat[0] = 0; /* let MSACM format this for us... */
346
347 return MMSYSERR_NOERROR;
348 }
349
350 /***********************************************************************
351 * MPEG3_FormatSuggest
352 *
353 */
354 static LRESULT MPEG3_FormatSuggest(PACMDRVFORMATSUGGEST adfs)
355 {
356 /* some tests ... */
357 if (adfs->cbwfxSrc < sizeof(PCMWAVEFORMAT) ||
358 adfs->cbwfxDst < sizeof(PCMWAVEFORMAT) ||
359 MPEG3_GetFormatIndex(adfs->pwfxSrc) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE;
360 /* FIXME: should do those tests against the real size (according to format tag */
361
362 /* If no suggestion for destination, then copy source value */
363 if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_NCHANNELS))
364 adfs->pwfxDst->nChannels = adfs->pwfxSrc->nChannels;
365 if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_NSAMPLESPERSEC))
366 adfs->pwfxDst->nSamplesPerSec = adfs->pwfxSrc->nSamplesPerSec;
367
368 if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_WBITSPERSAMPLE))
369 {
370 if (adfs->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM)
371 adfs->pwfxDst->wBitsPerSample = 4;
372 else
373 adfs->pwfxDst->wBitsPerSample = 16;
374 }
375 if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_WFORMATTAG))
376 {
377 if (adfs->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM)
378 adfs->pwfxDst->wFormatTag = WAVE_FORMAT_MPEGLAYER3;
379 else
380 adfs->pwfxDst->wFormatTag = WAVE_FORMAT_PCM;
381 }
382
383 /* check if result is ok */
384 if (MPEG3_GetFormatIndex(adfs->pwfxDst) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE;
385
386 /* recompute other values */
387 switch (adfs->pwfxDst->wFormatTag)
388 {
389 case WAVE_FORMAT_PCM:
390 adfs->pwfxDst->nBlockAlign = (adfs->pwfxDst->nChannels * adfs->pwfxDst->wBitsPerSample) / 8;
391 adfs->pwfxDst->nAvgBytesPerSec = adfs->pwfxDst->nSamplesPerSec * adfs->pwfxDst->nBlockAlign;
392 break;
393 case WAVE_FORMAT_MPEGLAYER3:
394 adfs->pwfxDst->nBlockAlign = 1;
395 fill_in_wfx(adfs->cbwfxDst, adfs->pwfxDst, 192000);
396 break;
397 default:
398 FIXME("\n");
399 break;
400 }
401
402 return MMSYSERR_NOERROR;
403 }
404
405 /***********************************************************************
406 * MPEG3_Reset
407 *
408 */
409 static void MPEG3_Reset(PACMDRVSTREAMINSTANCE adsi, AcmMpeg3Data* aad)
410 {
411 ClearMP3Buffer(&aad->mp);
412 InitMP3(&aad->mp);
413 }
414
415 /***********************************************************************
416 * MPEG3_StreamOpen
417 *
418 */
419 static LRESULT MPEG3_StreamOpen(PACMDRVSTREAMINSTANCE adsi)
420 {
421 AcmMpeg3Data* aad;
422
423 assert(!(adsi->fdwOpen & ACM_STREAMOPENF_ASYNC));
424
425 if (MPEG3_GetFormatIndex(adsi->pwfxSrc) == 0xFFFFFFFF ||
426 MPEG3_GetFormatIndex(adsi->pwfxDst) == 0xFFFFFFFF)
427 return ACMERR_NOTPOSSIBLE;
428
429 aad = HeapAlloc(GetProcessHeap(), 0, sizeof(AcmMpeg3Data));
430 if (aad == 0) return MMSYSERR_NOMEM;
431
432 adsi->dwDriver = (DWORD_PTR)aad;
433
434 if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
435 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
436 {
437 goto theEnd;
438 }
439 else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_MPEGLAYER3 &&
440 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
441 {
442 /* resampling or mono <=> stereo not available
443 * MPEG3 algo only define 16 bit per sample output
444 */
445 if (adsi->pwfxSrc->nSamplesPerSec != adsi->pwfxDst->nSamplesPerSec ||
446 adsi->pwfxSrc->nChannels != adsi->pwfxDst->nChannels ||
447 adsi->pwfxDst->wBitsPerSample != 16)
448 goto theEnd;
449 aad->convert = mp3_horse;
450 InitMP3(&aad->mp);
451 }
452 /* no encoding yet
453 else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
454 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_MPEGLAYER3)
455 */
456 else goto theEnd;
457 MPEG3_Reset(adsi, aad);
458
459 return MMSYSERR_NOERROR;
460
461 theEnd:
462 HeapFree(GetProcessHeap(), 0, aad);
463 adsi->dwDriver = 0L;
464 return MMSYSERR_NOTSUPPORTED;
465 }
466
467 /***********************************************************************
468 * MPEG3_StreamClose
469 *
470 */
471 static LRESULT MPEG3_StreamClose(PACMDRVSTREAMINSTANCE adsi)
472 {
473 ClearMP3Buffer(&((AcmMpeg3Data*)adsi->dwDriver)->mp);
474 HeapFree(GetProcessHeap(), 0, (void*)adsi->dwDriver);
475 return MMSYSERR_NOERROR;
476 }
477
478 /***********************************************************************
479 * MPEG3_StreamSize
480 *
481 */
482 static LRESULT MPEG3_StreamSize(PACMDRVSTREAMINSTANCE adsi, PACMDRVSTREAMSIZE adss)
483 {
484 DWORD nblocks;
485
486 switch (adss->fdwSize)
487 {
488 case ACM_STREAMSIZEF_DESTINATION:
489 /* cbDstLength => cbSrcLength */
490 if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
491 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_MPEGLAYER3)
492 {
493 nblocks = (adss->cbDstLength - 3000) / (DWORD)(adsi->pwfxDst->nAvgBytesPerSec * 1152 / adsi->pwfxDst->nSamplesPerSec + 0.5);
494 if (nblocks == 0)
495 return ACMERR_NOTPOSSIBLE;
496 adss->cbSrcLength = nblocks * 1152 * adsi->pwfxSrc->nBlockAlign;
497 }
498 else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_MPEGLAYER3 &&
499 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
500 {
501 nblocks = adss->cbDstLength / (adsi->pwfxDst->nBlockAlign * 1152);
502 if (nblocks == 0)
503 return ACMERR_NOTPOSSIBLE;
504 adss->cbSrcLength = nblocks * (DWORD)(adsi->pwfxSrc->nAvgBytesPerSec * 1152 / adsi->pwfxSrc->nSamplesPerSec);
505 }
506 else
507 {
508 return MMSYSERR_NOTSUPPORTED;
509 }
510 break;
511 case ACM_STREAMSIZEF_SOURCE:
512 /* cbSrcLength => cbDstLength */
513 if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
514 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_MPEGLAYER3)
515 {
516 nblocks = adss->cbSrcLength / (adsi->pwfxSrc->nBlockAlign * 1152);
517 if (nblocks == 0)
518 return ACMERR_NOTPOSSIBLE;
519 if (adss->cbSrcLength % (DWORD)(adsi->pwfxSrc->nBlockAlign * 1152))
520 /* Round block count up. */
521 nblocks++;
522 adss->cbDstLength = 3000 + nblocks * (DWORD)(adsi->pwfxDst->nAvgBytesPerSec * 1152 / adsi->pwfxDst->nSamplesPerSec + 0.5);
523 }
524 else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_MPEGLAYER3 &&
525 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
526 {
527 nblocks = adss->cbSrcLength / (DWORD)(adsi->pwfxSrc->nAvgBytesPerSec * 1152 / adsi->pwfxSrc->nSamplesPerSec);
528 if (nblocks == 0)
529 return ACMERR_NOTPOSSIBLE;
530 if (adss->cbSrcLength % (DWORD)(adsi->pwfxSrc->nAvgBytesPerSec * 1152 / adsi->pwfxSrc->nSamplesPerSec))
531 /* Round block count up. */
532 nblocks++;
533 adss->cbDstLength = nblocks * 1152 * adsi->pwfxDst->nBlockAlign;
534 }
535 else
536 {
537 return MMSYSERR_NOTSUPPORTED;
538 }
539 break;
540 default:
541 WARN("Unsupported query %08x\n", adss->fdwSize);
542 return MMSYSERR_NOTSUPPORTED;
543 }
544 return MMSYSERR_NOERROR;
545 }
546
547 /***********************************************************************
548 * MPEG3_StreamConvert
549 *
550 */
551 static LRESULT MPEG3_StreamConvert(PACMDRVSTREAMINSTANCE adsi, PACMDRVSTREAMHEADER adsh)
552 {
553 AcmMpeg3Data* aad = (AcmMpeg3Data*)adsi->dwDriver;
554 DWORD nsrc = adsh->cbSrcLength;
555 DWORD ndst = adsh->cbDstLength;
556
557 if (adsh->fdwConvert &
558 ~(ACM_STREAMCONVERTF_BLOCKALIGN|
559 ACM_STREAMCONVERTF_END|
560 ACM_STREAMCONVERTF_START))
561 {
562 FIXME("Unsupported fdwConvert (%08x), ignoring it\n", adsh->fdwConvert);
563 }
564 /* ACM_STREAMCONVERTF_BLOCKALIGN
565 * currently all conversions are block aligned, so do nothing for this flag
566 * ACM_STREAMCONVERTF_END
567 * no pending data, so do nothing for this flag
568 */
569 if ((adsh->fdwConvert & ACM_STREAMCONVERTF_START))
570 {
571 MPEG3_Reset(adsi, aad);
572 }
573
574 aad->convert(adsi, adsh->pbSrc, &nsrc, adsh->pbDst, &ndst);
575 adsh->cbSrcLengthUsed = nsrc;
576 adsh->cbDstLengthUsed = ndst;
577
578 return MMSYSERR_NOERROR;
579 }
580
581 /**************************************************************************
582 * MPEG3_DriverProc [exported]
583 */
584 LRESULT CALLBACK MPEG3_DriverProc(DWORD_PTR dwDevID, HDRVR hDriv, UINT wMsg,
585 LPARAM dwParam1, LPARAM dwParam2)
586 {
587 TRACE("(%08lx %p %04x %08lx %08lx);\n",
588 dwDevID, hDriv, wMsg, dwParam1, dwParam2);
589
590 switch (wMsg)
591 {
592 case DRV_LOAD: return 1;
593 case DRV_FREE: return 1;
594 case DRV_OPEN: return MPEG3_drvOpen((LPSTR)dwParam1);
595 case DRV_CLOSE: return MPEG3_drvClose(dwDevID);
596 case DRV_ENABLE: return 1;
597 case DRV_DISABLE: return 1;
598 case DRV_QUERYCONFIGURE: return 1;
599 case DRV_CONFIGURE: MessageBoxA(0, "MPEG3 filter !", "Wine Driver", MB_OK); return 1;
600 case DRV_INSTALL: return DRVCNF_RESTART;
601 case DRV_REMOVE: return DRVCNF_RESTART;
602
603 case ACMDM_DRIVER_NOTIFY:
604 /* no caching from other ACM drivers is done so far */
605 return MMSYSERR_NOERROR;
606
607 case ACMDM_DRIVER_DETAILS:
608 return MPEG3_DriverDetails((PACMDRIVERDETAILSW)dwParam1);
609
610 case ACMDM_FORMATTAG_DETAILS:
611 return MPEG3_FormatTagDetails((PACMFORMATTAGDETAILSW)dwParam1, dwParam2);
612
613 case ACMDM_FORMAT_DETAILS:
614 return MPEG3_FormatDetails((PACMFORMATDETAILSW)dwParam1, dwParam2);
615
616 case ACMDM_FORMAT_SUGGEST:
617 return MPEG3_FormatSuggest((PACMDRVFORMATSUGGEST)dwParam1);
618
619 case ACMDM_STREAM_OPEN:
620 return MPEG3_StreamOpen((PACMDRVSTREAMINSTANCE)dwParam1);
621
622 case ACMDM_STREAM_CLOSE:
623 return MPEG3_StreamClose((PACMDRVSTREAMINSTANCE)dwParam1);
624
625 case ACMDM_STREAM_SIZE:
626 return MPEG3_StreamSize((PACMDRVSTREAMINSTANCE)dwParam1, (PACMDRVSTREAMSIZE)dwParam2);
627
628 case ACMDM_STREAM_CONVERT:
629 return MPEG3_StreamConvert((PACMDRVSTREAMINSTANCE)dwParam1, (PACMDRVSTREAMHEADER)dwParam2);
630
631 case ACMDM_HARDWARE_WAVE_CAPS_INPUT:
632 case ACMDM_HARDWARE_WAVE_CAPS_OUTPUT:
633 /* this converter is not a hardware driver */
634 case ACMDM_FILTERTAG_DETAILS:
635 case ACMDM_FILTER_DETAILS:
636 /* this converter is not a filter */
637 case ACMDM_STREAM_RESET:
638 /* only needed for asynchronous driver... we aren't, so just say it */
639 return MMSYSERR_NOTSUPPORTED;
640 case ACMDM_STREAM_PREPARE:
641 case ACMDM_STREAM_UNPREPARE:
642 /* nothing special to do here... so don't do anything */
643 return MMSYSERR_NOERROR;
644
645 default:
646 return DefDriverProc(dwDevID, hDriv, wMsg, dwParam1, dwParam2);
647 }
648 }