git.oblomov.eu Git - wine/blob - dlls/winemp3.acm/mpegl3.c

   1 /*
   2  * MPEG Layer 3 handling
   3  *
   4  * Copyright (C) 2002 Eric Pouech
   5  * Copyright (C) 2009 CodeWeavers, Aric Stewart
   6  *
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 #include "config.h"
  24 #include "wine/port.h"
  25
  26 #include <assert.h>
  27 #include <stdarg.h>
  28 #include <string.h>
  29
  30 #ifdef HAVE_MPG123_H
  31 # include <mpg123.h>
  32 #else
  33 # ifdef HAVE_COREAUDIO_COREAUDIO_H
  34 #  include <CoreFoundation/CoreFoundation.h>
  35 #  include <CoreAudio/CoreAudio.h>
  36 # endif
  37 # ifdef HAVE_AUDIOTOOLBOX_AUDIOCONVERTER_H
  38 #  include <AudioToolbox/AudioConverter.h>
  39 # endif
  40 # ifdef HAVE_AUDIOTOOLBOX_AUDIOFILE_H
  41 #  include <AudioToolbox/AudioFile.h>
  42 # endif
  43 # ifdef HAVE_AUDIOTOOLBOX_AUDIOFILESTREAM_H
  44 #  include <AudioToolbox/AudioFileStream.h>
  45 # endif
  46 #endif
  47
  48 #include "windef.h"
  49 #include "winbase.h"
  50 #include "wingdi.h"
  51 #include "winuser.h"
  52 #include "winnls.h"
  53 #include "mmsystem.h"
  54 #include "mmreg.h"
  55 #include "msacm.h"
  56 #include "msacmdrv.h"
  57 #include "wine/debug.h"
  58
  59 WINE_DEFAULT_DEBUG_CHANNEL(mpeg3);
  60
  61 /* table to list all supported formats... those are the basic ones. this
  62  * also helps given a unique index to each of the supported formats
  63  */
  64 typedef struct
  65 {
  66     int         nChannels;
  67     int         nBits;
  68     int         rate;
  69 } Format;
  70
  71 static const Format PCM_Formats[] =
  72 {
  73     {1,  8,  8000}, {2,  8,  8000}, {1, 16,  8000}, {2, 16,  8000},
  74     {1,  8, 11025}, {2,  8, 11025}, {1, 16, 11025}, {2, 16, 11025},
  75     {1,  8, 12000}, {2,  8, 12000}, {1, 16, 12000}, {2, 16, 12000},
  76     {1,  8, 16000}, {2,  8, 16000}, {1, 16, 16000}, {2, 16, 16000},
  77     {1,  8, 22050}, {2,  8, 22050}, {1, 16, 22050}, {2, 16, 22050},
  78     {1,  8, 24000}, {2,  8, 24000}, {1, 16, 24000}, {2, 16, 24000},
  79     {1,  8, 32000}, {2,  8, 32000}, {1, 16, 32000}, {2, 16, 32000},
  80     {1,  8, 44100}, {2,  8, 44100}, {1, 16, 44100}, {2, 16, 44100},
  81     {1,  8, 48000}, {2,  8, 48000}, {1, 16, 48000}, {2, 16, 48000}
  82 };
  83
  84 static const Format MPEG3_Formats[] =
  85 {
  86     {1,  0,  8000}, {2,  0,  8000},
  87     {1,  0, 11025}, {2,  0, 11025},
  88     {1,  0, 12000}, {2,  0, 12000},
  89     {1,  0, 16000}, {2,  0, 16000},
  90     {1,  0, 22050}, {2,  0, 22050},
  91     {1,  0, 24000}, {2,  0, 24000},
  92     {1,  0, 32000}, {2,  0, 32000},
  93     {1,  0, 44100}, {2,  0, 44100},
  94     {1,  0, 48000}, {2,  0, 48000}
  95 };
  96
  97 #define NUM_PCM_FORMATS         (sizeof(PCM_Formats) / sizeof(PCM_Formats[0]))
  98 #define NUM_MPEG3_FORMATS       (sizeof(MPEG3_Formats) / sizeof(MPEG3_Formats[0]))
  99
 100 /***********************************************************************
 101  *           MPEG3_GetFormatIndex
 102  */
 103 static  DWORD   MPEG3_GetFormatIndex(LPWAVEFORMATEX wfx)
 104 {
 105     int         i, hi;
 106     const Format *fmts;
 107
 108     switch (wfx->wFormatTag)
 109     {
 110     case WAVE_FORMAT_PCM:
 111         hi = NUM_PCM_FORMATS;
 112         fmts = PCM_Formats;
 113         break;
 114     case WAVE_FORMAT_MPEGLAYER3:
 115         hi = NUM_MPEG3_FORMATS;
 116         fmts = MPEG3_Formats;
 117         break;
 118     default:
 119         return 0xFFFFFFFF;
 120     }
 121
 122     for (i = 0; i < hi; i++)
 123     {
 124         if (wfx->nChannels == fmts[i].nChannels &&
 125             wfx->nSamplesPerSec == fmts[i].rate &&
 126             (wfx->wBitsPerSample == fmts[i].nBits || !fmts[i].nBits))
 127             return i;
 128     }
 129
 130     return 0xFFFFFFFF;
 131 }
 132
 133 #ifdef HAVE_MPG123_H
 134
 135 typedef struct tagAcmMpeg3Data
 136 {
 137     void (*convert)(PACMDRVSTREAMINSTANCE adsi,
 138                     const unsigned char*, LPDWORD, unsigned char*, LPDWORD);
 139     mpg123_handle *mh;
 140 } AcmMpeg3Data;
 141
 142 /***********************************************************************
 143  *           MPEG3_drvOpen
 144  */
 145 static LRESULT MPEG3_drvOpen(LPCSTR str)
 146 {
 147     mpg123_init();
 148     return 1;
 149 }
 150
 151 /***********************************************************************
 152  *           MPEG3_drvClose
 153  */
 154 static LRESULT MPEG3_drvClose(DWORD_PTR dwDevID)
 155 {
 156     mpg123_exit();
 157     return 1;
 158 }
 159
 160
 161 static void mp3_horse(PACMDRVSTREAMINSTANCE adsi,
 162                       const unsigned char* src, LPDWORD nsrc,
 163                       unsigned char* dst, LPDWORD ndst)
 164 {
 165     AcmMpeg3Data*       amd = (AcmMpeg3Data*)adsi->dwDriver;
 166     int                 ret;
 167     size_t              size;
 168     DWORD               dpos = 0;
 169
 170
 171     if (*nsrc > 0)
 172     {
 173         ret = mpg123_feed(amd->mh, src, *nsrc);
 174         if (ret != MPG123_OK)
 175         {
 176             ERR("Error feeding data\n");
 177             *ndst = *nsrc = 0;
 178             return;
 179         }
 180     }
 181
 182     do {
 183         size = 0;
 184         ret = mpg123_read(amd->mh, dst + dpos, *ndst - dpos, &size);
 185         if (ret == MPG123_ERR)
 186         {
 187             FIXME("Error occurred during decoding!\n");
 188             *ndst = *nsrc = 0;
 189             return;
 190         }
 191
 192         if (ret == MPG123_NEW_FORMAT)
 193         {
 194             long rate;
 195             int channels, enc;
 196             mpg123_getformat(amd->mh, &rate, &channels, &enc);
 197             TRACE("New format: %li Hz, %i channels, encoding value %i\n", rate, channels, enc);
 198         }
 199         dpos += size;
 200         if (dpos > *ndst) break;
 201     } while (ret != MPG123_ERR && ret != MPG123_NEED_MORE);
 202     *ndst = dpos;
 203 }
 204
 205 /***********************************************************************
 206  *           MPEG3_Reset
 207  *
 208  */
 209 static void MPEG3_Reset(PACMDRVSTREAMINSTANCE adsi, AcmMpeg3Data* aad)
 210 {
 211     mpg123_feedseek(aad->mh, 0, SEEK_SET, NULL);
 212     mpg123_close(aad->mh);
 213     mpg123_open_feed(aad->mh);
 214 }
 215
 216 /***********************************************************************
 217  *           MPEG3_StreamOpen
 218  *
 219  */
 220 static  LRESULT MPEG3_StreamOpen(PACMDRVSTREAMINSTANCE adsi)
 221 {
 222     AcmMpeg3Data*       aad;
 223     int err;
 224
 225     assert(!(adsi->fdwOpen & ACM_STREAMOPENF_ASYNC));
 226
 227     if (MPEG3_GetFormatIndex(adsi->pwfxSrc) == 0xFFFFFFFF ||
 228         MPEG3_GetFormatIndex(adsi->pwfxDst) == 0xFFFFFFFF)
 229         return ACMERR_NOTPOSSIBLE;
 230
 231     aad = HeapAlloc(GetProcessHeap(), 0, sizeof(AcmMpeg3Data));
 232     if (aad == 0) return MMSYSERR_NOMEM;
 233
 234     adsi->dwDriver = (DWORD_PTR)aad;
 235
 236     if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
 237         adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
 238     {
 239         goto theEnd;
 240     }
 241     else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_MPEGLAYER3 &&
 242              adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
 243     {
 244         /* resampling or mono <=> stereo not available
 245          * MPEG3 algo only define 16 bit per sample output
 246          */
 247         if (adsi->pwfxSrc->nSamplesPerSec != adsi->pwfxDst->nSamplesPerSec ||
 248             adsi->pwfxSrc->nChannels != adsi->pwfxDst->nChannels ||
 249             adsi->pwfxDst->wBitsPerSample != 16)
 250             goto theEnd;
 251         aad->convert = mp3_horse;
 252         aad->mh = mpg123_new(NULL,&err);
 253         mpg123_open_feed(aad->mh);
 254     }
 255     /* no encoding yet
 256     else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
 257              adsi->pwfxDst->wFormatTag == WAVE_FORMAT_MPEGLAYER3)
 258     */
 259     else goto theEnd;
 260     MPEG3_Reset(adsi, aad);
 261
 262     return MMSYSERR_NOERROR;
 263
 264  theEnd:
 265     HeapFree(GetProcessHeap(), 0, aad);
 266     adsi->dwDriver = 0L;
 267     return MMSYSERR_NOTSUPPORTED;
 268 }
 269
 270 /***********************************************************************
 271  *           MPEG3_StreamClose
 272  *
 273  */
 274 static  LRESULT MPEG3_StreamClose(PACMDRVSTREAMINSTANCE adsi)
 275 {
 276     mpg123_close(((AcmMpeg3Data*)adsi->dwDriver)->mh);
 277     mpg123_delete(((AcmMpeg3Data*)adsi->dwDriver)->mh);
 278     HeapFree(GetProcessHeap(), 0, (void*)adsi->dwDriver);
 279     return MMSYSERR_NOERROR;
 280 }
 281
 282 #elif defined(HAVE_AUDIOFILESTREAMOPEN)
 283
 284 typedef struct tagAcmMpeg3Data
 285 {
 286     LRESULT (*convert)(PACMDRVSTREAMINSTANCE adsi,
 287             const unsigned char*, LPDWORD, unsigned char*, LPDWORD);
 288     AudioConverterRef acr;
 289     AudioStreamBasicDescription in,out;
 290     AudioFileStreamID afs;
 291
 292     AudioBufferList outBuffer;
 293     AudioBuffer inBuffer;
 294
 295     UInt32 NumberPackets;
 296     AudioStreamPacketDescription *PacketDescriptions;
 297
 298     OSStatus lastError;
 299 } AcmMpeg3Data;
 300
 301 static inline const char* wine_dbgstr_fourcc(ULONG fourcc)
 302 {
 303     char buf[4] = { (char) (fourcc >> 24), (char) (fourcc >> 16),
 304                     (char) (fourcc >> 8),  (char) fourcc };
 305     return wine_dbgstr_an(buf, sizeof(buf));
 306 }
 307
 308 /***********************************************************************
 309  *           MPEG3_drvOpen
 310  */
 311 static LRESULT MPEG3_drvOpen(LPCSTR str)
 312 {
 313     return 1;
 314 }
 315
 316 /***********************************************************************
 317  *           MPEG3_drvClose
 318  */
 319 static LRESULT MPEG3_drvClose(DWORD_PTR dwDevID)
 320 {
 321     return 1;
 322 }
 323
 324
 325 static OSStatus Mp3AudioConverterComplexInputDataProc (
 326    AudioConverterRef             inAudioConverter,
 327    UInt32                        *ioNumberDataPackets,
 328    AudioBufferList               *ioData,
 329    AudioStreamPacketDescription  **outDataPacketDescription,
 330    void                          *inUserData
 331 )
 332 {
 333     AcmMpeg3Data *amd = (AcmMpeg3Data*)inUserData;
 334
 335     if (amd->inBuffer.mDataByteSize > 0)
 336     {
 337         *ioNumberDataPackets = amd->NumberPackets;
 338         ioData->mNumberBuffers = 1;
 339         ioData->mBuffers[0].mDataByteSize =  amd->inBuffer.mDataByteSize;
 340         ioData->mBuffers[0].mData =  amd->inBuffer.mData;
 341         ioData->mBuffers[0].mNumberChannels =  amd->inBuffer.mNumberChannels;
 342         amd->inBuffer.mDataByteSize = 0;
 343         if (outDataPacketDescription)
 344             *outDataPacketDescription = amd->PacketDescriptions;
 345     }
 346     else
 347         *ioNumberDataPackets = 0;
 348     return noErr;
 349 }
 350
 351 static LRESULT mp3_leopard_horse(PACMDRVSTREAMINSTANCE adsi,
 352                       const unsigned char* src, LPDWORD nsrc,
 353                       unsigned char* dst, LPDWORD ndst)
 354 {
 355     AcmMpeg3Data*       amd = (AcmMpeg3Data*)adsi->dwDriver;
 356     OSStatus            ret;
 357
 358     TRACE("ndst %u %p  <-  %u %p\n",*ndst,dst,*nsrc, src);
 359     amd->outBuffer.mNumberBuffers = 1;
 360     amd->outBuffer.mBuffers[0].mDataByteSize =  *ndst;
 361     amd->outBuffer.mBuffers[0].mData = dst;
 362     amd->outBuffer.mBuffers[0].mNumberChannels =  amd->out.mChannelsPerFrame;
 363
 364     memset(dst,0xff,*ndst);
 365     ret = AudioFileStreamParseBytes( amd->afs, *nsrc, src, 0 );
 366
 367     if (ret != noErr)
 368     {
 369         *nsrc = 0;
 370         ERR("Feed Error %s\n", wine_dbgstr_fourcc(ret));
 371         return MMSYSERR_ERROR;
 372     }
 373     else if (amd->lastError != noErr)
 374     {
 375         *nsrc = 0;
 376         ERR("Error during feed %s\n", wine_dbgstr_fourcc(ret));
 377         return MMSYSERR_ERROR;
 378     }
 379
 380     *ndst = amd->outBuffer.mBuffers[0].mDataByteSize;
 381     *nsrc = amd->inBuffer.mDataByteSize;
 382
 383     return MMSYSERR_NOERROR;
 384 }
 385
 386 /***********************************************************************
 387  *           MPEG3_Reset
 388  *
 389  */
 390 static void MPEG3_Reset(PACMDRVSTREAMINSTANCE adsi, AcmMpeg3Data* aad)
 391 {
 392     SInt64 offset;
 393     AudioConverterReset(aad->acr);
 394     AudioFileStreamSeek(aad->afs, 0, &offset, 0);
 395 }
 396
 397 static void Mp3PropertyListenerProc ( void *inClientData,
 398            AudioFileStreamID inAudioFileStream, UInt32 inPropertyID, UInt32 *ioFlags)
 399 {
 400     /* No operation at this time */
 401 }
 402
 403 static void Mp3PacketsProc ( void *inClientData, UInt32 inNumberBytes,
 404    UInt32 inNumberPackets, const void *inInputData,
 405    AudioStreamPacketDescription *inPacketDescriptions)
 406 {
 407     AcmMpeg3Data *amd = (AcmMpeg3Data*)inClientData;
 408     UInt32 size;
 409
 410     amd->inBuffer.mDataByteSize = inNumberBytes;
 411     amd->inBuffer.mData = (void*)inInputData;
 412     amd->inBuffer.mNumberChannels =  amd->in.mChannelsPerFrame;
 413
 414     amd->NumberPackets = inNumberPackets;
 415     amd->PacketDescriptions = inPacketDescriptions;
 416
 417     size = amd->outBuffer.mBuffers[0].mDataByteSize / amd->out.mBytesPerPacket;
 418     amd->lastError = AudioConverterFillComplexBuffer(amd->acr, Mp3AudioConverterComplexInputDataProc, inClientData, &size, &amd->outBuffer, NULL);
 419 }
 420
 421 /***********************************************************************
 422  *           MPEG3_StreamOpen
 423  *
 424  */
 425 static LRESULT MPEG3_StreamOpen(PACMDRVSTREAMINSTANCE adsi)
 426 {
 427     AcmMpeg3Data* aad;
 428
 429     assert(!(adsi->fdwOpen & ACM_STREAMOPENF_ASYNC));
 430
 431     if (MPEG3_GetFormatIndex(adsi->pwfxSrc) == 0xFFFFFFFF ||
 432         MPEG3_GetFormatIndex(adsi->pwfxDst) == 0xFFFFFFFF)
 433         return ACMERR_NOTPOSSIBLE;
 434
 435     aad = HeapAlloc(GetProcessHeap(), 0, sizeof(AcmMpeg3Data));
 436     if (aad == 0) return MMSYSERR_NOMEM;
 437
 438     adsi->dwDriver = (DWORD_PTR)aad;
 439
 440     if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
 441         adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
 442     {
 443         goto theEnd;
 444     }
 445     else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_MPEGLAYER3 &&
 446              adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
 447     {
 448         OSStatus err;
 449
 450         aad->in.mSampleRate = adsi->pwfxSrc->nSamplesPerSec;
 451         aad->out.mSampleRate = adsi->pwfxDst->nSamplesPerSec;
 452         aad->in.mBitsPerChannel = adsi->pwfxSrc->wBitsPerSample;
 453         aad->out.mBitsPerChannel = adsi->pwfxDst->wBitsPerSample;
 454         aad->in.mFormatID = kAudioFormatMPEGLayer3;
 455         aad->out.mFormatID = kAudioFormatLinearPCM;
 456         aad->in.mChannelsPerFrame = adsi->pwfxSrc->nChannels;
 457         aad->out.mChannelsPerFrame = adsi->pwfxDst->nChannels;
 458         aad->in.mFormatFlags = 0;
 459         aad->out.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger;
 460         aad->in.mBytesPerFrame = 0;
 461
 462         aad->out.mBytesPerFrame = (aad->out.mBitsPerChannel * aad->out.mChannelsPerFrame) / 8;
 463         aad->in.mBytesPerPacket =  0;
 464         aad->out.mBytesPerPacket = aad->out.mBytesPerFrame;
 465         aad->in.mFramesPerPacket = 0;
 466         aad->out.mFramesPerPacket = 1;
 467         aad->in.mReserved = aad->out.mReserved = 0;
 468
 469         aad->acr = NULL;
 470
 471         err = AudioConverterNew(&aad->in, &aad->out ,&aad->acr);
 472         if (err != noErr)
 473         {
 474             ERR("Create failed: %s\n", wine_dbgstr_fourcc(err));
 475             goto theEnd;
 476         }
 477         else
 478         {
 479             aad->convert = mp3_leopard_horse;
 480             err = AudioFileStreamOpen(aad, Mp3PropertyListenerProc, Mp3PacketsProc, kAudioFormatMPEGLayer3, &aad->afs);
 481             if (err != noErr)
 482             {
 483                 ERR("Stream Open failed: %s\n", wine_dbgstr_fourcc(err));
 484                 goto theEnd;
 485             }
 486         }
 487     }
 488     else goto theEnd;
 489     MPEG3_Reset(adsi, aad);
 490
 491     return MMSYSERR_NOERROR;
 492
 493  theEnd:
 494     HeapFree(GetProcessHeap(), 0, aad);
 495     adsi->dwDriver = 0L;
 496     return MMSYSERR_NOTSUPPORTED;
 497 }
 498
 499 /***********************************************************************
 500  *           MPEG3_StreamClose
 501  *
 502  */
 503 static LRESULT MPEG3_StreamClose(PACMDRVSTREAMINSTANCE adsi)
 504 {
 505     AudioConverterDispose(((AcmMpeg3Data*)adsi->dwDriver)->acr);
 506     AudioFileStreamClose(((AcmMpeg3Data*)adsi->dwDriver)->afs);
 507     HeapFree(GetProcessHeap(), 0, (void*)adsi->dwDriver);
 508     return MMSYSERR_NOERROR;
 509 }
 510
 511 #endif
 512
 513 /***********************************************************************
 514  *           MPEG3_DriverDetails
 515  *
 516  */
 517 static  LRESULT MPEG3_DriverDetails(PACMDRIVERDETAILSW add)
 518 {
 519     add->fccType = ACMDRIVERDETAILS_FCCTYPE_AUDIOCODEC;
 520     add->fccComp = ACMDRIVERDETAILS_FCCCOMP_UNDEFINED;
 521     add->wMid = 0xFF;
 522     add->wPid = 0x00;
 523     add->vdwACM = 0x01000000;
 524     add->vdwDriver = 0x01000000;
 525     add->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
 526     add->cFormatTags = 2; /* PCM, MPEG3 */
 527     add->cFilterTags = 0;
 528     add->hicon = NULL;
 529     MultiByteToWideChar( CP_ACP, 0, "WINE-MPEG3", -1,
 530                          add->szShortName, sizeof(add->szShortName)/sizeof(WCHAR) );
 531     MultiByteToWideChar( CP_ACP, 0, "Wine MPEG3 decoder", -1,
 532                          add->szLongName, sizeof(add->szLongName)/sizeof(WCHAR) );
 533     MultiByteToWideChar( CP_ACP, 0, "Brought to you by the Wine team...", -1,
 534                          add->szCopyright, sizeof(add->szCopyright)/sizeof(WCHAR) );
 535     MultiByteToWideChar( CP_ACP, 0, "Refer to LICENSE file", -1,
 536                          add->szLicensing, sizeof(add->szLicensing)/sizeof(WCHAR) );
 537     add->szFeatures[0] = 0;
 538
 539     return MMSYSERR_NOERROR;
 540 }
 541
 542 /***********************************************************************
 543  *           MPEG3_FormatTagDetails
 544  *
 545  */
 546 static  LRESULT MPEG3_FormatTagDetails(PACMFORMATTAGDETAILSW aftd, DWORD dwQuery)
 547 {
 548     static const WCHAR szPcm[]={'P','C','M',0};
 549     static const WCHAR szMpeg3[]={'M','P','e','g','3',0};
 550
 551     switch (dwQuery)
 552     {
 553     case ACM_FORMATTAGDETAILSF_INDEX:
 554         if (aftd->dwFormatTagIndex >= 2) return ACMERR_NOTPOSSIBLE;
 555         break;
 556     case ACM_FORMATTAGDETAILSF_LARGESTSIZE:
 557         if (aftd->dwFormatTag == WAVE_FORMAT_UNKNOWN)
 558         {
 559             aftd->dwFormatTagIndex = 1; /* WAVE_FORMAT_MPEGLAYER3 is bigger than PCM */
 560             break;
 561         }
 562         /* fall thru */
 563     case ACM_FORMATTAGDETAILSF_FORMATTAG:
 564         switch (aftd->dwFormatTag)
 565         {
 566         case WAVE_FORMAT_PCM:           aftd->dwFormatTagIndex = 0; break;
 567         case WAVE_FORMAT_MPEGLAYER3:    aftd->dwFormatTagIndex = 1; break;
 568         default:                        return ACMERR_NOTPOSSIBLE;
 569         }
 570         break;
 571     default:
 572         WARN("Unsupported query %08x\n", dwQuery);
 573         return MMSYSERR_NOTSUPPORTED;
 574     }
 575
 576     aftd->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
 577     switch (aftd->dwFormatTagIndex)
 578     {
 579     case 0:
 580         aftd->dwFormatTag = WAVE_FORMAT_PCM;
 581         aftd->cbFormatSize = sizeof(PCMWAVEFORMAT);
 582         aftd->cStandardFormats = NUM_PCM_FORMATS;
 583         lstrcpyW(aftd->szFormatTag, szPcm);
 584         break;
 585     case 1:
 586         aftd->dwFormatTag = WAVE_FORMAT_MPEGLAYER3;
 587         aftd->cbFormatSize = sizeof(MPEGLAYER3WAVEFORMAT);
 588         aftd->cStandardFormats = NUM_MPEG3_FORMATS;
 589         lstrcpyW(aftd->szFormatTag, szMpeg3);
 590         break;
 591     }
 592     return MMSYSERR_NOERROR;
 593 }
 594
 595 static void fill_in_wfx(unsigned cbwfx, WAVEFORMATEX* wfx, unsigned bit_rate)
 596 {
 597     MPEGLAYER3WAVEFORMAT*   mp3wfx = (MPEGLAYER3WAVEFORMAT*)wfx;
 598
 599     wfx->nAvgBytesPerSec = bit_rate / 8;
 600     if (cbwfx >= sizeof(WAVEFORMATEX))
 601         wfx->cbSize = sizeof(MPEGLAYER3WAVEFORMAT) - sizeof(WAVEFORMATEX);
 602     if (cbwfx >= sizeof(MPEGLAYER3WAVEFORMAT))
 603     {
 604         mp3wfx->wID = MPEGLAYER3_ID_MPEG;
 605         mp3wfx->fdwFlags = MPEGLAYER3_FLAG_PADDING_OFF;
 606         mp3wfx->nBlockSize = (bit_rate * 144) / wfx->nSamplesPerSec;
 607         mp3wfx->nFramesPerBlock = 1;
 608         mp3wfx->nCodecDelay = 0x0571;
 609     }
 610 }
 611
 612 /***********************************************************************
 613  *           MPEG3_FormatDetails
 614  *
 615  */
 616 static  LRESULT MPEG3_FormatDetails(PACMFORMATDETAILSW afd, DWORD dwQuery)
 617 {
 618     switch (dwQuery)
 619     {
 620     case ACM_FORMATDETAILSF_FORMAT:
 621         if (MPEG3_GetFormatIndex(afd->pwfx) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE;
 622         break;
 623     case ACM_FORMATDETAILSF_INDEX:
 624         afd->pwfx->wFormatTag = afd->dwFormatTag;
 625         switch (afd->dwFormatTag)
 626         {
 627         case WAVE_FORMAT_PCM:
 628             if (afd->dwFormatIndex >= NUM_PCM_FORMATS) return ACMERR_NOTPOSSIBLE;
 629             afd->pwfx->nChannels = PCM_Formats[afd->dwFormatIndex].nChannels;
 630             afd->pwfx->nSamplesPerSec = PCM_Formats[afd->dwFormatIndex].rate;
 631             afd->pwfx->wBitsPerSample = PCM_Formats[afd->dwFormatIndex].nBits;
 632             /* native MSACM uses a PCMWAVEFORMAT structure, so cbSize is not accessible
 633              * afd->pwfx->cbSize = 0;
 634              */
 635             afd->pwfx->nBlockAlign =
 636                 (afd->pwfx->nChannels * afd->pwfx->wBitsPerSample) / 8;
 637             afd->pwfx->nAvgBytesPerSec =
 638                 afd->pwfx->nSamplesPerSec * afd->pwfx->nBlockAlign;
 639             break;
 640         case WAVE_FORMAT_MPEGLAYER3:
 641             if (afd->dwFormatIndex >= NUM_MPEG3_FORMATS) return ACMERR_NOTPOSSIBLE;
 642             afd->pwfx->nChannels = MPEG3_Formats[afd->dwFormatIndex].nChannels;
 643             afd->pwfx->nSamplesPerSec = MPEG3_Formats[afd->dwFormatIndex].rate;
 644             afd->pwfx->wBitsPerSample = MPEG3_Formats[afd->dwFormatIndex].nBits;
 645             afd->pwfx->nBlockAlign = 1;
 646             fill_in_wfx(afd->cbwfx, afd->pwfx, 192000);
 647             break;
 648         default:
 649             WARN("Unsupported tag %08x\n", afd->dwFormatTag);
 650             return MMSYSERR_INVALPARAM;
 651         }
 652         break;
 653     default:
 654         WARN("Unsupported query %08x\n", dwQuery);
 655         return MMSYSERR_NOTSUPPORTED;
 656     }
 657     afd->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
 658     afd->szFormat[0] = 0; /* let MSACM format this for us... */
 659
 660     return MMSYSERR_NOERROR;
 661 }
 662
 663 /***********************************************************************
 664  *           MPEG3_FormatSuggest
 665  *
 666  */
 667 static  LRESULT MPEG3_FormatSuggest(PACMDRVFORMATSUGGEST adfs)
 668 {
 669     /* some tests ... */
 670     if (adfs->cbwfxSrc < sizeof(PCMWAVEFORMAT) ||
 671         adfs->cbwfxDst < sizeof(PCMWAVEFORMAT) ||
 672         MPEG3_GetFormatIndex(adfs->pwfxSrc) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE;
 673     /* FIXME: should do those tests against the real size (according to format tag */
 674
 675     /* If no suggestion for destination, then copy source value */
 676     if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_NCHANNELS))
 677         adfs->pwfxDst->nChannels = adfs->pwfxSrc->nChannels;
 678     if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_NSAMPLESPERSEC))
 679         adfs->pwfxDst->nSamplesPerSec = adfs->pwfxSrc->nSamplesPerSec;
 680
 681     if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_WBITSPERSAMPLE))
 682     {
 683         if (adfs->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM)
 684             adfs->pwfxDst->wBitsPerSample = 4;
 685         else
 686             adfs->pwfxDst->wBitsPerSample = 16;
 687     }
 688     if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_WFORMATTAG))
 689     {
 690         if (adfs->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM)
 691             adfs->pwfxDst->wFormatTag = WAVE_FORMAT_MPEGLAYER3;
 692         else
 693             adfs->pwfxDst->wFormatTag = WAVE_FORMAT_PCM;
 694     }
 695
 696     /* check if result is ok */
 697     if (MPEG3_GetFormatIndex(adfs->pwfxDst) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE;
 698
 699     /* recompute other values */
 700     switch (adfs->pwfxDst->wFormatTag)
 701     {
 702     case WAVE_FORMAT_PCM:
 703         adfs->pwfxDst->nBlockAlign = (adfs->pwfxDst->nChannels * adfs->pwfxDst->wBitsPerSample) / 8;
 704         adfs->pwfxDst->nAvgBytesPerSec = adfs->pwfxDst->nSamplesPerSec * adfs->pwfxDst->nBlockAlign;
 705         break;
 706     case WAVE_FORMAT_MPEGLAYER3:
 707         adfs->pwfxDst->nBlockAlign = 1;
 708         fill_in_wfx(adfs->cbwfxDst, adfs->pwfxDst, 192000);
 709         break;
 710     default:
 711         FIXME("\n");
 712         break;
 713     }
 714
 715     return MMSYSERR_NOERROR;
 716 }
 717
 718 /***********************************************************************
 719  *           MPEG3_StreamSize
 720  *
 721  */
 722 static  LRESULT MPEG3_StreamSize(PACMDRVSTREAMINSTANCE adsi, PACMDRVSTREAMSIZE adss)
 723 {
 724     DWORD nblocks;
 725
 726     switch (adss->fdwSize)
 727     {
 728     case ACM_STREAMSIZEF_DESTINATION:
 729         /* cbDstLength => cbSrcLength */
 730         if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
 731             adsi->pwfxDst->wFormatTag == WAVE_FORMAT_MPEGLAYER3)
 732         {
 733             nblocks = (adss->cbDstLength - 3000) / (DWORD)(adsi->pwfxDst->nAvgBytesPerSec * 1152 / adsi->pwfxDst->nSamplesPerSec + 0.5);
 734             if (nblocks == 0)
 735                 return ACMERR_NOTPOSSIBLE;
 736             adss->cbSrcLength = nblocks * 1152 * adsi->pwfxSrc->nBlockAlign;
 737         }
 738         else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_MPEGLAYER3 &&
 739                  adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
 740         {
 741             nblocks = adss->cbDstLength / (adsi->pwfxDst->nBlockAlign * 1152);
 742             if (nblocks == 0)
 743                 return ACMERR_NOTPOSSIBLE;
 744             adss->cbSrcLength = nblocks * (DWORD)(adsi->pwfxSrc->nAvgBytesPerSec * 1152 / adsi->pwfxSrc->nSamplesPerSec);
 745         }
 746         else
 747         {
 748             return MMSYSERR_NOTSUPPORTED;
 749         }
 750         break;
 751     case ACM_STREAMSIZEF_SOURCE:
 752         /* cbSrcLength => cbDstLength */
 753         if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
 754             adsi->pwfxDst->wFormatTag == WAVE_FORMAT_MPEGLAYER3)
 755         {
 756             nblocks = adss->cbSrcLength / (adsi->pwfxSrc->nBlockAlign * 1152);
 757             if (nblocks == 0)
 758                 return ACMERR_NOTPOSSIBLE;
 759             if (adss->cbSrcLength % (DWORD)(adsi->pwfxSrc->nBlockAlign * 1152))
 760                 /* Round block count up. */
 761                 nblocks++;
 762             adss->cbDstLength = 3000 + nblocks * (DWORD)(adsi->pwfxDst->nAvgBytesPerSec * 1152 / adsi->pwfxDst->nSamplesPerSec + 0.5);
 763         }
 764         else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_MPEGLAYER3 &&
 765                  adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
 766         {
 767             nblocks = adss->cbSrcLength / (DWORD)(adsi->pwfxSrc->nAvgBytesPerSec * 1152 / adsi->pwfxSrc->nSamplesPerSec);
 768             if (nblocks == 0)
 769                 return ACMERR_NOTPOSSIBLE;
 770             if (adss->cbSrcLength % (DWORD)(adsi->pwfxSrc->nAvgBytesPerSec * 1152 / adsi->pwfxSrc->nSamplesPerSec))
 771                 /* Round block count up. */
 772                 nblocks++;
 773             adss->cbDstLength = nblocks * 1152 * adsi->pwfxDst->nBlockAlign;
 774         }
 775         else
 776         {
 777             return MMSYSERR_NOTSUPPORTED;
 778         }
 779         break;
 780     default:
 781         WARN("Unsupported query %08x\n", adss->fdwSize);
 782         return MMSYSERR_NOTSUPPORTED;
 783     }
 784     return MMSYSERR_NOERROR;
 785 }
 786
 787 /***********************************************************************
 788  *           MPEG3_StreamConvert
 789  *
 790  */
 791 static LRESULT MPEG3_StreamConvert(PACMDRVSTREAMINSTANCE adsi, PACMDRVSTREAMHEADER adsh)
 792 {
 793     AcmMpeg3Data*       aad = (AcmMpeg3Data*)adsi->dwDriver;
 794     DWORD               nsrc = adsh->cbSrcLength;
 795     DWORD               ndst = adsh->cbDstLength;
 796
 797     if (adsh->fdwConvert &
 798         ~(ACM_STREAMCONVERTF_BLOCKALIGN|
 799           ACM_STREAMCONVERTF_END|
 800           ACM_STREAMCONVERTF_START))
 801     {
 802         FIXME("Unsupported fdwConvert (%08x), ignoring it\n", adsh->fdwConvert);
 803     }
 804     /* ACM_STREAMCONVERTF_BLOCKALIGN
 805      *  currently all conversions are block aligned, so do nothing for this flag
 806      * ACM_STREAMCONVERTF_END
 807      *  no pending data, so do nothing for this flag
 808      */
 809     if ((adsh->fdwConvert & ACM_STREAMCONVERTF_START))
 810     {
 811         MPEG3_Reset(adsi, aad);
 812     }
 813
 814     aad->convert(adsi, adsh->pbSrc, &nsrc, adsh->pbDst, &ndst);
 815     adsh->cbSrcLengthUsed = nsrc;
 816     adsh->cbDstLengthUsed = ndst;
 817
 818     return MMSYSERR_NOERROR;
 819 }
 820
 821 /**************************************************************************
 822  *                      MPEG3_DriverProc                        [exported]
 823  */
 824 LRESULT CALLBACK MPEG3_DriverProc(DWORD_PTR dwDevID, HDRVR hDriv, UINT wMsg,
 825                                          LPARAM dwParam1, LPARAM dwParam2)
 826 {
 827     TRACE("(%08lx %p %04x %08lx %08lx);\n",
 828           dwDevID, hDriv, wMsg, dwParam1, dwParam2);
 829
 830     switch (wMsg)
 831     {
 832     case DRV_LOAD:              return 1;
 833     case DRV_FREE:              return 1;
 834     case DRV_OPEN:              return MPEG3_drvOpen((LPSTR)dwParam1);
 835     case DRV_CLOSE:             return MPEG3_drvClose(dwDevID);
 836     case DRV_ENABLE:            return 1;
 837     case DRV_DISABLE:           return 1;
 838     case DRV_QUERYCONFIGURE:    return 1;
 839     case DRV_CONFIGURE:         MessageBoxA(0, "MPEG3 filter !", "Wine Driver", MB_OK); return 1;
 840     case DRV_INSTALL:           return DRVCNF_RESTART;
 841     case DRV_REMOVE:            return DRVCNF_RESTART;
 842
 843     case ACMDM_DRIVER_NOTIFY:
 844         /* no caching from other ACM drivers is done so far */
 845         return MMSYSERR_NOERROR;
 846
 847     case ACMDM_DRIVER_DETAILS:
 848         return MPEG3_DriverDetails((PACMDRIVERDETAILSW)dwParam1);
 849
 850     case ACMDM_FORMATTAG_DETAILS:
 851         return MPEG3_FormatTagDetails((PACMFORMATTAGDETAILSW)dwParam1, dwParam2);
 852
 853     case ACMDM_FORMAT_DETAILS:
 854         return MPEG3_FormatDetails((PACMFORMATDETAILSW)dwParam1, dwParam2);
 855
 856     case ACMDM_FORMAT_SUGGEST:
 857         return MPEG3_FormatSuggest((PACMDRVFORMATSUGGEST)dwParam1);
 858
 859     case ACMDM_STREAM_OPEN:
 860         return MPEG3_StreamOpen((PACMDRVSTREAMINSTANCE)dwParam1);
 861
 862     case ACMDM_STREAM_CLOSE:
 863         return MPEG3_StreamClose((PACMDRVSTREAMINSTANCE)dwParam1);
 864
 865     case ACMDM_STREAM_SIZE:
 866         return MPEG3_StreamSize((PACMDRVSTREAMINSTANCE)dwParam1, (PACMDRVSTREAMSIZE)dwParam2);
 867
 868     case ACMDM_STREAM_CONVERT:
 869         return MPEG3_StreamConvert((PACMDRVSTREAMINSTANCE)dwParam1, (PACMDRVSTREAMHEADER)dwParam2);
 870
 871     case ACMDM_HARDWARE_WAVE_CAPS_INPUT:
 872     case ACMDM_HARDWARE_WAVE_CAPS_OUTPUT:
 873         /* this converter is not a hardware driver */
 874     case ACMDM_FILTERTAG_DETAILS:
 875     case ACMDM_FILTER_DETAILS:
 876         /* this converter is not a filter */
 877     case ACMDM_STREAM_RESET:
 878         /* only needed for asynchronous driver... we aren't, so just say it */
 879         return MMSYSERR_NOTSUPPORTED;
 880     case ACMDM_STREAM_PREPARE:
 881     case ACMDM_STREAM_UNPREPARE:
 882         /* nothing special to do here... so don't do anything */
 883         return MMSYSERR_NOERROR;
 884
 885     default:
 886         return DefDriverProc(dwDevID, hDriv, wMsg, dwParam1, dwParam2);
 887     }
 888 }