src/Registry_Encoder.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2015 LoRd_MuldeR <MuldeR2@GMX.de>
   4 //
   5 // This program is free software; you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation; either version 2 of the License, or
   8 // (at your option) any later version, but always including the *additional*
   9 // restrictions defined in the "License.txt" file.
  10 //
  11 // This program is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU General Public License along
  17 // with this program; if not, write to the Free Software Foundation, Inc.,
  18 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19 //
  20 // http://www.gnu.org/licenses/gpl-2.0.txt
  21 ///////////////////////////////////////////////////////////////////////////////
  22
  23 #include "Registry_Encoder.h"
  24
  25 #include "Global.h"
  26 #include "Model_Settings.h"
  27 #include "Encoder_AAC.h"
  28 #include "Encoder_AAC_FHG.h"
  29 #include "Encoder_AAC_QAAC.h"
  30 #include "Encoder_AC3.h"
  31 #include "Encoder_DCA.h"
  32 #include "Encoder_FLAC.h"
  33 #include "Encoder_MP3.h"
  34 #include "Encoder_Vorbis.h"
  35 #include "Encoder_Opus.h"
  36 #include "Encoder_MAC.h"
  37 #include "Encoder_Wave.h"
  38
  39 #define IS_VBR(RC_MODE) ((RC_MODE) == SettingsModel::VBRMode)
  40 #define IS_ABR(RC_MODE) ((RC_MODE) == SettingsModel::ABRMode)
  41 #define IS_CBR(RC_MODE) ((RC_MODE) == SettingsModel::CBRMode)
  42
  43 ////////////////////////////////////////////////////////////
  44 // Create encoder instance
  45 ////////////////////////////////////////////////////////////
  46
  47 AbstractEncoder *EncoderRegistry::createInstance(const int encoderId, const SettingsModel *settings, bool *nativeResampling)
  48 {
  49         int rcMode = -1;
  50         AbstractEncoder *encoder =  NULL;
  51         *nativeResampling = false;
  52
  53         //Create new encoder instance and apply encoder-specific settings
  54         switch(encoderId)
  55         {
  56         /*-------- MP3Encoder /*--------*/
  57         case SettingsModel::MP3Encoder:
  58                 {
  59                         MP3Encoder *mp3Encoder = new MP3Encoder();
  60                         mp3Encoder->setAlgoQuality(settings->lameAlgoQuality());
  61                         if(settings->bitrateManagementEnabled())
  62                         {
  63                                 mp3Encoder->setBitrateLimits(settings->bitrateManagementMinRate(), settings->bitrateManagementMaxRate());
  64                         }
  65                         if(settings->samplingRate() > 0)
  66                         {
  67                                 mp3Encoder->setSamplingRate(SettingsModel::samplingRates[settings->samplingRate()]);
  68                                 *nativeResampling = true;
  69                         }
  70                         mp3Encoder->setChannelMode(settings->lameChannelMode());
  71                         encoder = mp3Encoder;
  72                 }
  73                 break;
  74         /*-------- VorbisEncoder /*--------*/
  75         case SettingsModel::VorbisEncoder:
  76                 {
  77                         VorbisEncoder *vorbisEncoder = new VorbisEncoder();
  78                         if(settings->bitrateManagementEnabled())
  79                         {
  80                                 vorbisEncoder->setBitrateLimits(settings->bitrateManagementMinRate(), settings->bitrateManagementMaxRate());
  81                         }
  82                         if(settings->samplingRate() > 0)
  83                         {
  84                                 vorbisEncoder->setSamplingRate(SettingsModel::samplingRates[settings->samplingRate()]);
  85                                 *nativeResampling = true;
  86                         }
  87                         encoder = vorbisEncoder;
  88                 }
  89                 break;
  90         /*-------- AACEncoder /*--------*/
  91         case SettingsModel::AACEncoder:
  92                 {
  93                         switch(getAacEncoder())
  94                         {
  95                         case SettingsModel::AAC_ENCODER_QAAC:
  96                                 {
  97                                         QAACEncoder *aacEncoder = new QAACEncoder();
  98                                         aacEncoder->setProfile(settings->aacEncProfile());
  99                                         encoder = aacEncoder;
 100                                 }
 101                                 break;
 102                         case SettingsModel::AAC_ENCODER_FHG:
 103                                 {
 104                                         FHGAACEncoder *aacEncoder = new FHGAACEncoder();
 105                                         aacEncoder->setProfile(settings->aacEncProfile());
 106                                         encoder = aacEncoder;
 107                                 }
 108                                 break;
 109                         case SettingsModel::AAC_ENCODER_NERO:
 110                                 {
 111                                         AACEncoder *aacEncoder = new AACEncoder();
 112                                         aacEncoder->setEnable2Pass(settings->neroAACEnable2Pass());
 113                                         aacEncoder->setProfile(settings->aacEncProfile());
 114                                         encoder = aacEncoder;
 115                                 }
 116                                 break;
 117                         default:
 118                                 MUTILS_THROW("makeEncoder(): Unknown AAC encoder specified!");
 119                                 break;
 120                         }
 121                 }
 122                 break;
 123         /*-------- AC3Encoder /*--------*/
 124         case SettingsModel::AC3Encoder:
 125                 {
 126                         AC3Encoder *ac3Encoder = new AC3Encoder();
 127                         ac3Encoder->setAudioCodingMode(settings->aftenAudioCodingMode());
 128                         ac3Encoder->setDynamicRangeCompression(settings->aftenDynamicRangeCompression());
 129                         ac3Encoder->setExponentSearchSize(settings->aftenExponentSearchSize());
 130                         ac3Encoder->setFastBitAllocation(settings->aftenFastBitAllocation());
 131                         encoder = ac3Encoder;
 132                 }
 133                 break;
 134         /*-------- FLACEncoder /*--------*/
 135         case SettingsModel::FLACEncoder:
 136                 {
 137                         FLACEncoder *flacEncoder = new FLACEncoder();
 138                         encoder = flacEncoder;
 139                 }
 140                 break;
 141         /*-------- OpusEncoder --------*/
 142         case SettingsModel::OpusEncoder:
 143                 {
 144                         OpusEncoder *opusEncoder = new OpusEncoder();
 145                         opusEncoder->setOptimizeFor(settings->opusOptimizeFor());
 146                         opusEncoder->setEncodeComplexity(settings->opusComplexity());
 147                         opusEncoder->setFrameSize(settings->opusFramesize());
 148                         encoder = opusEncoder;
 149                 }
 150                 break;
 151         /*-------- DCAEncoder --------*/
 152         case SettingsModel::DCAEncoder:
 153                 {
 154                         DCAEncoder *dcaEncoder = new DCAEncoder();
 155                         encoder = dcaEncoder;
 156                 }
 157                 break;
 158         /*-------- MACEncoder --------*/
 159         case SettingsModel::MACEncoder:
 160                 {
 161                         MACEncoder *macEncoder = new MACEncoder();
 162                         encoder = macEncoder;
 163                 }
 164                 break;
 165         /*-------- PCMEncoder --------*/
 166         case SettingsModel::PCMEncoder:
 167                 {
 168                         WaveEncoder *waveEncoder = new WaveEncoder();
 169                         encoder = waveEncoder;
 170                 }
 171                 break;
 172         /*-------- default --------*/
 173         default:
 174                 MUTILS_THROW("Unsupported encoder!");
 175         }
 176
 177         //Sanity checking
 178         if(!encoder)
 179         {
 180                 MUTILS_THROW("No encoder instance has been assigend!");
 181         }
 182
 183         //Apply common settings
 184         encoder->setRCMode(rcMode = loadEncoderMode(settings, encoderId));
 185         encoder->setCustomParams(loadEncoderCustomParams(settings, encoderId));
 186         encoder->setBitrate(loadEncoderValue(settings, encoderId, rcMode));
 187
 188         return encoder;
 189 }
 190
 191 ////////////////////////////////////////////////////////////
 192 // Get encoder info
 193 ////////////////////////////////////////////////////////////
 194
 195 const AbstractEncoderInfo *EncoderRegistry::getEncoderInfo(const int encoderId)
 196 {
 197         const AbstractEncoderInfo *info = NULL;
 198
 199         switch(encoderId)
 200         {
 201                 case SettingsModel::MP3Encoder:    info = MP3Encoder::getEncoderInfo();    break;
 202                 case SettingsModel::VorbisEncoder: info = VorbisEncoder::getEncoderInfo(); break;
 203                 case SettingsModel::AC3Encoder:    info = AC3Encoder::getEncoderInfo();    break;
 204                 case SettingsModel::FLACEncoder:   info = FLACEncoder::getEncoderInfo();   break;
 205                 case SettingsModel::OpusEncoder:   info = OpusEncoder::getEncoderInfo();   break;
 206                 case SettingsModel::DCAEncoder:    info = DCAEncoder::getEncoderInfo();    break;
 207                 case SettingsModel::MACEncoder:    info = MACEncoder::getEncoderInfo();    break;
 208                 case SettingsModel::PCMEncoder:    info = WaveEncoder::getEncoderInfo();   break;
 209                 case SettingsModel::AACEncoder:
 210                         switch(getAacEncoder())
 211                         {
 212                                 case SettingsModel::AAC_ENCODER_QAAC: info = QAACEncoder::getEncoderInfo();   break;
 213                                 case SettingsModel::AAC_ENCODER_FHG:  info = FHGAACEncoder::getEncoderInfo(); break;
 214                                 case SettingsModel::AAC_ENCODER_NERO: info = AACEncoder::getEncoderInfo();    break;
 215                                 default: MUTILS_THROW("Unknown AAC encoder specified!");
 216                         }
 217                         break;
 218                 default: MUTILS_THROW("Unsupported encoder!");
 219         }
 220
 221         //Sanity checking
 222         if(!info)
 223         {
 224                 MUTILS_THROW("No encoder instance has been assigend!");
 225         }
 226
 227         return info;
 228 }
 229
 230 ////////////////////////////////////////////////////////////
 231 // Load/store encoder RC mode
 232 ////////////////////////////////////////////////////////////
 233
 234 #define STORE_MODE(ENCODER_ID, RC_MODE) do \
 235 { \
 236         settings->compressionRCMode##ENCODER_ID(RC_MODE); \
 237 } \
 238 while(0)
 239
 240 #define LOAD_MODE(RC_MODE, ENCODER_ID) do \
 241 { \
 242         (RC_MODE) = settings->compressionRCMode##ENCODER_ID(); \
 243 } \
 244 while(0)
 245
 246 void EncoderRegistry::saveEncoderMode(SettingsModel *settings, const int encoderId, const int rcMode)
 247 {
 248         //Sanity checking
 249         if((rcMode < SettingsModel::VBRMode) || (rcMode > SettingsModel::CBRMode))
 250         {
 251                 MUTILS_THROW("Unknown rate-control mode!");
 252         }
 253
 254         //Store the encoder bitrate/quality value
 255         switch(encoderId)
 256         {
 257                 case SettingsModel::MP3Encoder:    STORE_MODE(LAME,    rcMode); break;
 258                 case SettingsModel::VorbisEncoder: STORE_MODE(OggEnc,  rcMode); break;
 259                 case SettingsModel::AACEncoder:    STORE_MODE(AacEnc,  rcMode); break;
 260                 case SettingsModel::AC3Encoder:    STORE_MODE(Aften,   rcMode); break;
 261                 case SettingsModel::FLACEncoder:   STORE_MODE(FLAC,    rcMode); break;
 262                 case SettingsModel::OpusEncoder:   STORE_MODE(OpusEnc, rcMode); break;
 263                 case SettingsModel::DCAEncoder:    STORE_MODE(DcaEnc,  rcMode); break;
 264                 case SettingsModel::MACEncoder:    STORE_MODE(MacEnc,  rcMode); break;
 265                 case SettingsModel::PCMEncoder:    STORE_MODE(Wave,    rcMode); break;
 266                 default: MUTILS_THROW("Unsupported encoder!");
 267         }
 268 }
 269
 270 int EncoderRegistry::loadEncoderMode(const SettingsModel *settings, const int encoderId)
 271 {
 272         int rcMode = -1;
 273
 274         //Store the encoder bitrate/quality value
 275         switch(encoderId)
 276         {
 277                 case SettingsModel::MP3Encoder:    LOAD_MODE(rcMode, LAME);    break;
 278                 case SettingsModel::VorbisEncoder: LOAD_MODE(rcMode, OggEnc);  break;
 279                 case SettingsModel::AACEncoder:    LOAD_MODE(rcMode, AacEnc);  break;
 280                 case SettingsModel::AC3Encoder:    LOAD_MODE(rcMode, Aften);   break;
 281                 case SettingsModel::FLACEncoder:   LOAD_MODE(rcMode, FLAC);    break;
 282                 case SettingsModel::OpusEncoder:   LOAD_MODE(rcMode, OpusEnc); break;
 283                 case SettingsModel::DCAEncoder:    LOAD_MODE(rcMode, DcaEnc);  break;
 284                 case SettingsModel::MACEncoder:    LOAD_MODE(rcMode, MacEnc);  break;
 285                 case SettingsModel::PCMEncoder:    LOAD_MODE(rcMode, Wave);    break;
 286                 default: MUTILS_THROW("Unsupported encoder!");
 287         }
 288
 289         return rcMode;
 290 }
 291
 292 ////////////////////////////////////////////////////////////
 293 // Load/store encoder bitrate/quality value
 294 ////////////////////////////////////////////////////////////
 295
 296 #define STORE_VALUE(ENCODER_ID, RC_MODE, VALUE) do \
 297 { \
 298         if(IS_VBR(RC_MODE)) settings->compressionVbrQuality##ENCODER_ID(VALUE); \
 299         if(IS_ABR(RC_MODE)) settings->compressionAbrBitrate##ENCODER_ID(VALUE); \
 300         if(IS_CBR(RC_MODE)) settings->compressionCbrBitrate##ENCODER_ID(VALUE); \
 301 } \
 302 while(0)
 303
 304 #define LOAD_VALUE(VALUE, ENCODER_ID, RC_MODE) do \
 305 { \
 306         if(IS_VBR(RC_MODE)) (VALUE) = settings->compressionVbrQuality##ENCODER_ID(); \
 307         if(IS_ABR(RC_MODE)) (VALUE) = settings->compressionAbrBitrate##ENCODER_ID(); \
 308         if(IS_CBR(RC_MODE)) (VALUE) = settings->compressionCbrBitrate##ENCODER_ID(); \
 309 } \
 310 while(0)
 311
 312 void EncoderRegistry::saveEncoderValue(SettingsModel *settings, const int encoderId, const int rcMode, const int value)
 313 {
 314         //Sanity checking
 315         if((rcMode < SettingsModel::VBRMode) || (rcMode > SettingsModel::CBRMode))
 316         {
 317                 MUTILS_THROW("Unknown rate-control mode!");
 318         }
 319
 320         //Store the encoder bitrate/quality value
 321         switch(encoderId)
 322         {
 323                 case SettingsModel::MP3Encoder:    STORE_VALUE(LAME,    rcMode, value); break;
 324                 case SettingsModel::VorbisEncoder: STORE_VALUE(OggEnc,  rcMode, value); break;
 325                 case SettingsModel::AACEncoder:    STORE_VALUE(AacEnc,  rcMode, value); break;
 326                 case SettingsModel::AC3Encoder:    STORE_VALUE(Aften,   rcMode, value); break;
 327                 case SettingsModel::FLACEncoder:   STORE_VALUE(FLAC,    rcMode, value); break;
 328                 case SettingsModel::OpusEncoder:   STORE_VALUE(OpusEnc, rcMode, value); break;
 329                 case SettingsModel::DCAEncoder:    STORE_VALUE(DcaEnc,  rcMode, value); break;
 330                 case SettingsModel::MACEncoder:    STORE_VALUE(MacEnc,  rcMode, value); break;
 331                 case SettingsModel::PCMEncoder:    STORE_VALUE(Wave,    rcMode, value); break;
 332                 default: MUTILS_THROW("Unsupported encoder!");
 333         }
 334 }
 335
 336 int EncoderRegistry::loadEncoderValue(const SettingsModel *settings, const int encoderId, const int rcMode)
 337 {
 338         int value = INT_MAX;
 339
 340         //Sanity checking
 341         if((rcMode < SettingsModel::VBRMode) || (rcMode > SettingsModel::CBRMode))
 342         {
 343                 MUTILS_THROW("Unknown rate-control mode!");
 344         }
 345
 346         //Load the encoder bitrate/quality value
 347         switch(encoderId)
 348         {
 349                 case SettingsModel::MP3Encoder:    LOAD_VALUE(value, LAME,    rcMode); break;
 350                 case SettingsModel::VorbisEncoder: LOAD_VALUE(value, OggEnc,  rcMode); break;
 351                 case SettingsModel::AACEncoder:    LOAD_VALUE(value, AacEnc,  rcMode); break;
 352                 case SettingsModel::AC3Encoder:    LOAD_VALUE(value, Aften,   rcMode); break;
 353                 case SettingsModel::FLACEncoder:   LOAD_VALUE(value, FLAC,    rcMode); break;
 354                 case SettingsModel::OpusEncoder:   LOAD_VALUE(value, OpusEnc, rcMode); break;
 355                 case SettingsModel::DCAEncoder:    LOAD_VALUE(value, DcaEnc,  rcMode); break;
 356                 case SettingsModel::MACEncoder:    LOAD_VALUE(value, MacEnc,  rcMode); break;
 357                 case SettingsModel::PCMEncoder:    LOAD_VALUE(value, Wave,    rcMode); break;
 358                 default: MUTILS_THROW("Unsupported encoder!");
 359         }
 360
 361         return value;
 362 }
 363
 364 ////////////////////////////////////////////////////////////
 365 // Load/store encoder custom parameters
 366 ////////////////////////////////////////////////////////////
 367
 368 #define STORE_PARAMS(ENCODER_ID, PARAMS) do \
 369 { \
 370         settings->customParameters##ENCODER_ID(PARAMS); \
 371 } \
 372 while(0)
 373
 374 #define LOAD_PARAMS(PARAMS, ENCODER_ID) do \
 375 { \
 376         (PARAMS) = settings->customParameters##ENCODER_ID(); \
 377 } \
 378 while(0)
 379
 380 void EncoderRegistry::saveEncoderCustomParams(SettingsModel *settings, const int encoderId, const QString params)
 381 {
 382         //Store the encoder bitrate/quality value
 383         switch(encoderId)
 384         {
 385                 case SettingsModel::MP3Encoder:    STORE_PARAMS(LAME,    params.trimmed()); break;
 386                 case SettingsModel::VorbisEncoder: STORE_PARAMS(OggEnc,  params.trimmed()); break;
 387                 case SettingsModel::AACEncoder:    STORE_PARAMS(AacEnc,  params.trimmed()); break;
 388                 case SettingsModel::AC3Encoder:    STORE_PARAMS(Aften,   params.trimmed()); break;
 389                 case SettingsModel::FLACEncoder:   STORE_PARAMS(FLAC,    params.trimmed()); break;
 390                 case SettingsModel::OpusEncoder:   STORE_PARAMS(OpusEnc, params.trimmed()); break;
 391                 case SettingsModel::DCAEncoder:    STORE_PARAMS(DcaEnc,  params.trimmed()); break;
 392                 case SettingsModel::MACEncoder:    STORE_PARAMS(MacEnc,  params.trimmed()); break;
 393                 case SettingsModel::PCMEncoder:    STORE_PARAMS(Wave,    params.trimmed()); break;
 394                 default: MUTILS_THROW("Unsupported encoder!");
 395         }
 396 }
 397
 398 QString EncoderRegistry::loadEncoderCustomParams(const SettingsModel *settings, const int encoderId)
 399 {
 400         QString params;
 401
 402         //Load the encoder bitrate/quality value
 403         switch(encoderId)
 404         {
 405                 case SettingsModel::MP3Encoder:    LOAD_PARAMS(params, LAME);    break;
 406                 case SettingsModel::VorbisEncoder: LOAD_PARAMS(params, OggEnc);  break;
 407                 case SettingsModel::AACEncoder:    LOAD_PARAMS(params, AacEnc);  break;
 408                 case SettingsModel::AC3Encoder:    LOAD_PARAMS(params, Aften);   break;
 409                 case SettingsModel::FLACEncoder:   LOAD_PARAMS(params, FLAC);    break;
 410                 case SettingsModel::OpusEncoder:   LOAD_PARAMS(params, OpusEnc); break;
 411                 case SettingsModel::DCAEncoder:    LOAD_PARAMS(params, DcaEnc);  break;
 412                 case SettingsModel::MACEncoder:    LOAD_PARAMS(params, MacEnc);  break;
 413                 case SettingsModel::PCMEncoder:    LOAD_PARAMS(params, Wave);    break;
 414                 default: MUTILS_THROW("Unsupported encoder!");
 415         }
 416
 417         return params;
 418 }
 419
 420 ////////////////////////////////////////////////////////////
 421 // Reset encoder settings
 422 ////////////////////////////////////////////////////////////
 423
 424 #define RESET_SETTING(OBJ,NAME) do \
 425 { \
 426         (OBJ)->NAME((OBJ)->NAME##Default()); \
 427 } \
 428 while(0)
 429
 430 void EncoderRegistry::resetAllEncoders(SettingsModel *settings)
 431 {
 432         RESET_SETTING(settings, compressionAbrBitrateAacEnc);
 433         RESET_SETTING(settings, compressionAbrBitrateAften);
 434         RESET_SETTING(settings, compressionAbrBitrateDcaEnc);
 435         RESET_SETTING(settings, compressionAbrBitrateFLAC);
 436         RESET_SETTING(settings, compressionAbrBitrateLAME);
 437         RESET_SETTING(settings, compressionAbrBitrateMacEnc);
 438         RESET_SETTING(settings, compressionAbrBitrateOggEnc);
 439         RESET_SETTING(settings, compressionAbrBitrateOpusEnc);
 440         RESET_SETTING(settings, compressionAbrBitrateWave);
 441
 442         RESET_SETTING(settings, compressionCbrBitrateAacEnc);
 443         RESET_SETTING(settings, compressionCbrBitrateAften);
 444         RESET_SETTING(settings, compressionCbrBitrateDcaEnc);
 445         RESET_SETTING(settings, compressionCbrBitrateFLAC);
 446         RESET_SETTING(settings, compressionCbrBitrateLAME);
 447         RESET_SETTING(settings, compressionCbrBitrateMacEnc);
 448         RESET_SETTING(settings, compressionCbrBitrateOggEnc);
 449         RESET_SETTING(settings, compressionCbrBitrateOpusEnc);
 450         RESET_SETTING(settings, compressionCbrBitrateWave);
 451
 452         RESET_SETTING(settings, compressionRCModeAacEnc);
 453         RESET_SETTING(settings, compressionRCModeAften);
 454         RESET_SETTING(settings, compressionRCModeDcaEnc);
 455         RESET_SETTING(settings, compressionRCModeFLAC);
 456         RESET_SETTING(settings, compressionRCModeLAME);
 457         RESET_SETTING(settings, compressionRCModeMacEnc);
 458         RESET_SETTING(settings, compressionRCModeOggEnc);
 459         RESET_SETTING(settings, compressionRCModeOpusEnc);
 460         RESET_SETTING(settings, compressionRCModeWave);
 461
 462         RESET_SETTING(settings, compressionVbrQualityAacEnc);
 463         RESET_SETTING(settings, compressionVbrQualityAften);
 464         RESET_SETTING(settings, compressionVbrQualityDcaEnc);
 465         RESET_SETTING(settings, compressionVbrQualityFLAC);
 466         RESET_SETTING(settings, compressionVbrQualityLAME);
 467         RESET_SETTING(settings, compressionVbrQualityMacEnc);
 468         RESET_SETTING(settings, compressionVbrQualityOggEnc);
 469         RESET_SETTING(settings, compressionVbrQualityOpusEnc);
 470         RESET_SETTING(settings, compressionVbrQualityWave);
 471 }
 472
 473 ////////////////////////////////////////////////////////////
 474 // Static Functions
 475 ////////////////////////////////////////////////////////////
 476
 477 int EncoderRegistry::getAacEncoder(void)
 478 {
 479         if(lamexp_tools_check("qaac.exe") && lamexp_tools_check("libsoxr.dll") && lamexp_tools_check("libsoxconvolver.dll"))
 480         {
 481                 return SettingsModel::AAC_ENCODER_QAAC;
 482         }
 483         else if(lamexp_tools_check("fhgaacenc.exe") && lamexp_tools_check("enc_fhgaac.dll") && lamexp_tools_check("nsutil.dll") && lamexp_tools_check("libmp4v2.dll"))
 484         {
 485                 return SettingsModel::AAC_ENCODER_FHG;
 486         }
 487         else if(lamexp_tools_check("neroAacEnc.exe") && lamexp_tools_check("neroAacDec.exe") && lamexp_tools_check("neroAacTag.exe"))
 488         {
 489                 return SettingsModel::AAC_ENCODER_NERO;
 490         }
 491         else
 492         {
 493                 return SettingsModel::AAC_ENCODER_NONE;
 494         }
 495 }