1 2 /* ----------------------------------------------------------------------------------------------------------- 3 Software License for The Fraunhofer FDK AAC Codec Library for Android 4 5 Copyright 1995 - 2012 Fraunhofer-Gesellschaft zur Frderung der angewandten Forschung e.V. 6 All rights reserved. 7 8 1. INTRODUCTION 9 The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements 10 the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. 11 This FDK AAC Codec software is intended to be used on a wide variety of Android devices. 12 13 AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual 14 audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by 15 independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part 16 of the MPEG specifications. 17 18 Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) 19 may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners 20 individually for the purpose of encoding or decoding bit streams in products that are compliant with 21 the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license 22 these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec 23 software may already be covered under those patent licenses when it is used for those licensed purposes only. 24 25 Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, 26 are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional 27 applications information and documentation. 28 29 2. COPYRIGHT LICENSE 30 31 Redistribution and use in source and binary forms, with or without modification, are permitted without 32 payment of copyright license fees provided that you satisfy the following conditions: 33 34 You must retain the complete text of this software license in redistributions of the FDK AAC Codec or 35 your modifications thereto in source code form. 36 37 You must retain the complete text of this software license in the documentation and/or other materials 38 provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. 39 You must make available free of charge copies of the complete source code of the FDK AAC Codec and your 40 modifications thereto to recipients of copies in binary form. 41 42 The name of Fraunhofer may not be used to endorse or promote products derived from this library without 43 prior written permission. 44 45 You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec 46 software or your modifications thereto. 47 48 Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software 49 and the date of any change. For modified versions of the FDK AAC Codec, the term 50 "Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term 51 "Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." 52 53 3. NO PATENT LICENSE 54 55 NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, 56 ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with 57 respect to this software. 58 59 You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized 60 by appropriate patent licenses. 61 62 4. DISCLAIMER 63 64 This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors 65 "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties 66 of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 67 CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, 68 including but not limited to procurement of substitute goods or services; loss of use, data, or profits, 69 or business interruption, however caused and on any theory of liability, whether in contract, strict 70 liability, or tort (including negligence), arising in any way out of the use of this software, even if 71 advised of the possibility of such damage. 72 73 5. CONTACT INFORMATION 74 75 Fraunhofer Institute for Integrated Circuits IIS 76 Attention: Audio and Multimedia Departments - FDK AAC LL 77 Am Wolfsmantel 33 78 91058 Erlangen, Germany 79 80 www.iis.fraunhofer.de/amm 81 amm-info (at) iis.fraunhofer.de 82 ----------------------------------------------------------------------------------------------------------- */ 83 84 /**************************** MPEG-4 HE-AAC Encoder ************************* 85 86 Initial author: M. Lohwasser 87 contents/description: FDK HE-AAC Encoder interface library functions 88 89 ****************************************************************************/ 90 91 #include "aacenc_lib.h" 92 #include "FDK_audio.h" 93 #include "aacenc.h" 94 95 #include "aacEnc_ram.h" 96 #include "FDK_core.h" /* FDK_tools versioning info */ 97 98 /* Encoder library info */ 99 #define AACENCODER_LIB_VL0 3 100 #define AACENCODER_LIB_VL1 3 101 #define AACENCODER_LIB_VL2 3 102 #define AACENCODER_LIB_TITLE "AAC Encoder" 103 #define AACENCODER_LIB_BUILD_DATE __DATE__ 104 #define AACENCODER_LIB_BUILD_TIME __TIME__ 105 106 107 #include "sbr_encoder.h" 108 #include "../src/sbr_ram.h" 109 #include "channel_map.h" 110 111 #include "psy_const.h" 112 #include "bitenc.h" 113 114 #include "tpenc_lib.h" 115 116 #include "metadata_main.h" 117 118 #define SBL(fl) (fl/8) /*!< Short block length (hardcoded to 8 short blocks per long block) */ 119 #define BSLA(fl) (4*SBL(fl)+SBL(fl)/2) /*!< AAC block switching look-ahead */ 120 #define DELAY_AAC(fl) (fl+BSLA(fl)) /*!< MDCT + blockswitching */ 121 #define DELAY_AACELD(fl) ( (fl) + ((fl)/2) ) /*!< ELD FB delay */ 122 123 #define INPUTBUFFER_SIZE (1537+100+2048) 124 125 //////////////////////////////////////////////////////////////////////////////////// 126 /** 127 * Flags to characterize encoder modules to be supported in present instance. 128 */ 129 enum { 130 ENC_MODE_FLAG_AAC = 0x0001, 131 ENC_MODE_FLAG_SBR = 0x0002, 132 ENC_MODE_FLAG_PS = 0x0004, 133 ENC_MODE_FLAG_SAC = 0x0008, 134 ENC_MODE_FLAG_META = 0x0010 135 }; 136 137 //////////////////////////////////////////////////////////////////////////////////// 138 typedef struct { 139 AUDIO_OBJECT_TYPE userAOT; /*!< Audio Object Type. */ 140 UINT userSamplerate; /*!< Sampling frequency. */ 141 UINT nChannels; /*!< will be set via channelMode. */ 142 CHANNEL_MODE userChannelMode; 143 UINT userBitrate; 144 UINT userBitrateMode; 145 UINT userBandwidth; 146 UINT userAfterburner; 147 UINT userFramelength; 148 UINT userAncDataRate; 149 150 UCHAR userTns; /*!< Use TNS coding. */ 151 UCHAR userPns; /*!< Use PNS coding. */ 152 UCHAR userIntensity; /*!< Use Intensity coding. */ 153 154 TRANSPORT_TYPE userTpType; /*!< Transport type */ 155 UCHAR userTpSignaling; /*!< Extension AOT signaling mode. */ 156 UCHAR userTpNsubFrames; /*!< Number of sub frames in a transport frame for LOAS/LATM or ADTS (default 1). */ 157 UCHAR userTpAmxv; /*!< AudioMuxVersion to be used for LATM (default 0). */ 158 UCHAR userTpProtection; 159 UCHAR userTpHeaderPeriod; /*!< Parameter used to configure LATM/LOAS SMC rate. Moreover this parameters is 160 used to configure repetition rate of PCE in raw_data_block. */ 161 162 UCHAR userErTools; /*!< Use VCB11, HCR and/or RVLC ER tool. */ 163 UINT userPceAdditions; /*!< Configure additional bits in PCE. */ 164 165 UCHAR userMetaDataMode; /*!< Meta data library configuration. */ 166 167 UCHAR userSbrEnabled; 168 169 } USER_PARAM; 170 171 //////////////////////////////////////////////////////////////////////////////////// 172 173 /**************************************************************************** 174 Structure Definitions 175 ****************************************************************************/ 176 177 typedef struct AACENC_CONFIG *HANDLE_AACENC_CONFIG; 178 179 180 struct AACENCODER 181 { 182 USER_PARAM extParam; 183 CODER_CONFIG coderConfig; 184 185 /* AAC */ 186 AACENC_CONFIG aacConfig; 187 HANDLE_AAC_ENC hAacEnc; 188 189 /* SBR */ 190 HANDLE_SBR_ENCODER hEnvEnc; 191 192 /* Meta Data */ 193 HANDLE_FDK_METADATA_ENCODER hMetadataEnc; 194 INT metaDataAllowed; /* Signal whether chosen configuration allows metadata. Necessary for delay 195 compensation. Metadata mode is a separate parameter. */ 196 197 /* Transport */ 198 HANDLE_TRANSPORTENC hTpEnc; 199 200 /* Output */ 201 UCHAR *outBuffer; /* Internal bitstream buffer */ 202 INT outBufferInBytes; /* Size of internal bitstream buffer*/ 203 204 /* Input */ 205 INT_PCM *inputBuffer; /* Internal input buffer. Input source for AAC encoder */ 206 INT inputBufferOffset; /* Where to write new input samples. */ 207 208 INT nSamplesToRead; /* number of input samples neeeded for encoding one frame */ 209 INT nSamplesRead; /* number of input samples already in input buffer */ 210 INT nZerosAppended; /* appended zeros at end of file*/ 211 INT nDelay; /* encoder delay */ 212 213 AACENC_EXT_PAYLOAD extPayload [MAX_TOTAL_EXT_PAYLOADS]; 214 /* Extension payload */ 215 UCHAR extPayloadData [(1)][(6)][MAX_PAYLOAD_SIZE]; 216 UINT extPayloadSize [(1)][(6)]; /* payload sizes in bits */ 217 218 ULONG InitFlags; /* internal status to treggier re-initialization */ 219 220 221 /* Memory allocation info. */ 222 INT nMaxAacElements; 223 INT nMaxAacChannels; 224 INT nMaxSbrElements; 225 INT nMaxSbrChannels; 226 UINT nMaxSubFrames; 227 228 UINT encoder_modis; 229 230 /* Capabity flags */ 231 UINT CAPF_tpEnc; 232 233 } ; 234 235 //////////////////////////////////////////////////////////////////////////////////// 236 237 static inline INT isSbrActive(const HANDLE_AACENC_CONFIG hAacConfig) 238 { 239 INT sbrUsed = 0; 240 241 if ( (hAacConfig->audioObjectType==AOT_SBR) || (hAacConfig->audioObjectType==AOT_PS) 242 || (hAacConfig->audioObjectType==AOT_MP2_SBR) || (hAacConfig->audioObjectType==AOT_MP2_PS) 243 || (hAacConfig->audioObjectType==AOT_DABPLUS_SBR) || (hAacConfig->audioObjectType==AOT_DABPLUS_PS) 244 || (hAacConfig->audioObjectType==AOT_DRM_SBR) || (hAacConfig->audioObjectType==AOT_DRM_MPEG_PS) ) 245 { 246 sbrUsed = 1; 247 } 248 if (hAacConfig->audioObjectType == AOT_ER_AAC_ELD && (hAacConfig->syntaxFlags & AC_SBR_PRESENT)) 249 { 250 sbrUsed = 1; 251 } 252 253 return ( sbrUsed ); 254 } 255 256 /**************************************************************************** 257 Allocate Encoder 258 ****************************************************************************/ 259 260 H_ALLOC_MEM (_AacEncoder, AACENCODER) 261 C_ALLOC_MEM (_AacEncoder, AACENCODER, 1) 262 263 264 265 266 /* 267 * Map Encoder specific config structures to CODER_CONFIG. 268 */ 269 static 270 void FDKaacEnc_MapConfig(CODER_CONFIG *cc, USER_PARAM *extCfg, HANDLE_AACENC_CONFIG hAacConfig) 271 { 272 AUDIO_OBJECT_TYPE transport_AOT = AOT_NULL_OBJECT; 273 FDKmemclear(cc, sizeof(CODER_CONFIG)); 274 275 cc->flags = 0; 276 277 /* Map virtual aot to transport aot. */ 278 switch (hAacConfig->audioObjectType) { 279 case AOT_MP2_AAC_LC: 280 transport_AOT = AOT_AAC_LC; 281 break; 282 case AOT_MP2_SBR: 283 transport_AOT = AOT_SBR; 284 cc->flags |= CC_SBR; 285 break; 286 case AOT_MP2_PS: 287 transport_AOT = AOT_PS; 288 cc->flags |= CC_SBR; 289 break; 290 default: 291 transport_AOT = hAacConfig->audioObjectType; 292 } 293 294 if (hAacConfig->audioObjectType == AOT_ER_AAC_ELD) { 295 cc->flags |= (hAacConfig->syntaxFlags & AC_SBR_PRESENT) ? CC_SBR : 0; 296 } 297 298 /* transport type is usually AAC-LC. */ 299 if ( (transport_AOT == AOT_SBR) || (transport_AOT == AOT_PS) ) { 300 cc->aot = AOT_AAC_LC; 301 } 302 else { 303 cc->aot = transport_AOT; 304 } 305 306 /* Configure extension aot. */ 307 if (extCfg->userTpSignaling==0) { 308 cc->extAOT = AOT_NULL_OBJECT; /* implicit */ 309 } 310 else { 311 if ( (extCfg->userTpSignaling==1) && ( (transport_AOT==AOT_SBR) || (transport_AOT==AOT_PS) ) ) { 312 cc->extAOT = AOT_SBR; /* explicit backward compatible */ 313 } 314 else { 315 cc->extAOT = transport_AOT; /* explicit hierarchical */ 316 } 317 } 318 cc->extSamplingRate = extCfg->userSamplerate; 319 cc->bitRate = hAacConfig->bitRate; 320 cc->noChannels = hAacConfig->nChannels; 321 cc->flags |= CC_IS_BASELAYER; 322 cc->channelMode = hAacConfig->channelMode; 323 324 cc->nSubFrames = (hAacConfig->nSubFrames > 1 && extCfg->userTpNsubFrames == 1) 325 ? hAacConfig->nSubFrames 326 : extCfg->userTpNsubFrames; 327 328 cc->flags |= (extCfg->userTpProtection) ? CC_PROTECTION : 0; 329 330 if (extCfg->userTpHeaderPeriod!=0xFF) { 331 cc->headerPeriod = extCfg->userTpHeaderPeriod; 332 } 333 else { /* auto-mode */ 334 switch (extCfg->userTpType) { 335 case TT_MP4_ADTS: 336 case TT_MP4_LOAS: 337 case TT_MP4_LATM_MCP1: 338 cc->headerPeriod = 10; 339 break; 340 default: 341 cc->headerPeriod = 0; 342 } 343 } 344 345 cc->samplesPerFrame = hAacConfig->framelength; 346 cc->samplingRate = hAacConfig->sampleRate; 347 348 /* Mpeg-4 signaling for transport library. */ 349 switch ( hAacConfig->audioObjectType ) { 350 case AOT_MP2_AAC_LC: 351 case AOT_MP2_SBR: 352 case AOT_MP2_PS: 353 cc->flags &= ~CC_MPEG_ID; /* Required for ADTS. */ 354 //config->userTpSignaling=0; 355 cc->extAOT = AOT_NULL_OBJECT; 356 break; 357 default: 358 cc->flags |= CC_MPEG_ID; 359 } 360 361 /* ER-tools signaling. */ 362 cc->flags |= (hAacConfig->syntaxFlags & AC_ER_VCB11) ? CC_VCB11 : 0; 363 cc->flags |= (hAacConfig->syntaxFlags & AC_ER_HCR) ? CC_HCR : 0; 364 cc->flags |= (hAacConfig->syntaxFlags & AC_ER_RVLC) ? CC_RVLC : 0; 365 366 /* Matrix mixdown coefficient configuration. */ 367 if ( (extCfg->userPceAdditions&0x1) && (hAacConfig->epConfig==-1) 368 && ((cc->channelMode==MODE_1_2_2)||(cc->channelMode==MODE_1_2_2_1)) ) 369 { 370 cc->matrixMixdownA = ((extCfg->userPceAdditions>>1)&0x3)+1; 371 cc->flags |= (extCfg->userPceAdditions>>3)&0x1 ? CC_PSEUDO_SURROUND : 0; 372 } 373 else { 374 cc->matrixMixdownA = 0; 375 } 376 } 377 378 /* 379 * Examine buffer descriptor regarding choosen identifier. 380 * 381 * \param pBufDesc Pointer to buffer descriptor 382 * \param identifier Buffer identifier to look for. 383 384 * \return - Buffer descriptor index. 385 * -1, if there is no entry available. 386 */ 387 static INT getBufDescIdx( 388 const AACENC_BufDesc *pBufDesc, 389 const AACENC_BufferIdentifier identifier 390 ) 391 { 392 INT i, idx = -1; 393 394 for (i=0; i<pBufDesc->numBufs; i++) { 395 if ( (AACENC_BufferIdentifier)pBufDesc->bufferIdentifiers[i] == identifier ) { 396 idx = i; 397 break; 398 } 399 } 400 return idx; 401 } 402 403 404 /**************************************************************************** 405 Function Declarations 406 ****************************************************************************/ 407 408 AAC_ENCODER_ERROR aacEncDefaultConfig(HANDLE_AACENC_CONFIG hAacConfig, 409 USER_PARAM *config) 410 { 411 /* make reasonable default settings */ 412 FDKaacEnc_AacInitDefaultConfig (hAacConfig); 413 414 /* clear confure structure and copy default settings */ 415 FDKmemclear(config, sizeof(USER_PARAM)); 416 417 /* copy encoder configuration settings */ 418 config->nChannels = hAacConfig->nChannels; 419 config->userAOT = hAacConfig->audioObjectType = AOT_AAC_LC; 420 config->userSamplerate = hAacConfig->sampleRate; 421 config->userChannelMode = hAacConfig->channelMode; 422 config->userBitrate = hAacConfig->bitRate; 423 config->userBitrateMode = hAacConfig->bitrateMode; 424 config->userBandwidth = hAacConfig->bandWidth; 425 config->userTns = hAacConfig->useTns; 426 config->userPns = hAacConfig->usePns; 427 config->userIntensity = hAacConfig->useIS; 428 config->userAfterburner = hAacConfig->useRequant; 429 config->userFramelength = (UINT)-1; 430 431 if (hAacConfig->syntaxFlags & AC_ER_VCB11) { 432 config->userErTools |= 0x01; 433 } 434 if (hAacConfig->syntaxFlags & AC_ER_HCR) { 435 config->userErTools |= 0x02; 436 } 437 438 /* initialize transport parameters */ 439 config->userTpType = TT_UNKNOWN; 440 config->userTpAmxv = 0; 441 config->userTpSignaling = 0; /* default, implicit signaling */ 442 config->userTpNsubFrames = 1; 443 config->userTpProtection = 0; /* not crc protected*/ 444 config->userTpHeaderPeriod = 0xFF; /* header period in auto mode */ 445 config->userPceAdditions = 0; /* no matrix mixdown coefficient */ 446 config->userMetaDataMode = 0; /* do not embed any meta data info */ 447 448 config->userAncDataRate = 0; 449 450 return AAC_ENC_OK; 451 } 452 453 static 454 void aacEncDistributeSbrBits(CHANNEL_MAPPING *channelMapping, SBR_ELEMENT_INFO *sbrElInfo, INT bitRate) 455 { 456 INT codebits = bitRate; 457 int el; 458 459 /* Copy Element info */ 460 for (el=0; el<channelMapping->nElements; el++) { 461 sbrElInfo[el].ChannelIndex[0] = channelMapping->elInfo[el].ChannelIndex[0]; 462 sbrElInfo[el].ChannelIndex[1] = channelMapping->elInfo[el].ChannelIndex[1]; 463 sbrElInfo[el].elType = channelMapping->elInfo[el].elType; 464 sbrElInfo[el].bitRate = (INT)(fMultNorm(channelMapping->elInfo[el].relativeBits, (FIXP_DBL)bitRate)); 465 sbrElInfo[el].instanceTag = channelMapping->elInfo[el].instanceTag; 466 sbrElInfo[el].nChannelsInEl = channelMapping->elInfo[el].nChannelsInEl; 467 468 codebits -= sbrElInfo[el].bitRate; 469 } 470 sbrElInfo[0].bitRate += codebits; 471 } 472 473 474 static 475 INT aacEncoder_LimitBitrate( 476 const HANDLE_TRANSPORTENC hTpEnc, 477 const INT samplingRate, 478 const INT frameLength, 479 const INT nChannels, 480 const CHANNEL_MODE channelMode, 481 INT bitRate, 482 const INT nSubFrames, 483 const INT sbrActive, 484 const AUDIO_OBJECT_TYPE aot 485 ) 486 { 487 INT coreSamplingRate; 488 CHANNEL_MAPPING cm; 489 490 FDKaacEnc_InitChannelMapping(channelMode, CH_ORDER_MPEG, &cm); 491 492 if (sbrActive) { 493 /* Assume SBR rate ratio of 2:1 */ 494 coreSamplingRate = samplingRate / 2; 495 } else { 496 coreSamplingRate = samplingRate; 497 } 498 499 /* Consider bandwidth channel bit rate limit (see bandwidth.cpp: GetBandwidthEntry()) */ 500 if (aot == AOT_ER_AAC_LD || aot == AOT_ER_AAC_ELD) { 501 bitRate = FDKmin(360000*nChannels, bitRate); 502 bitRate = FDKmax(8000*nChannels, bitRate); 503 } 504 505 if (aot == AOT_AAC_LC || aot == AOT_SBR || aot == AOT_PS) { 506 bitRate = FDKmin(576000*nChannels, bitRate); 507 /*bitRate = FDKmax(0*nChannels, bitRate);*/ 508 } 509 510 511 /* Limit bit rate in respect to the core coder */ 512 bitRate = FDKaacEnc_LimitBitrate( 513 hTpEnc, 514 coreSamplingRate, 515 frameLength, 516 nChannels, 517 cm.nChannelsEff, 518 bitRate, 519 -1, 520 NULL, 521 -1, 522 nSubFrames 523 ); 524 525 /* Limit bit rate in respect to available SBR modes if active */ 526 if (sbrActive) 527 { 528 SBR_ELEMENT_INFO sbrElInfo[6]; 529 INT sbrBitRate = 0; 530 int e, tooBig=-1; 531 532 FDK_ASSERT(cm.nElements <= (6)); 533 534 /* Get bit rate for each SBR element */ 535 aacEncDistributeSbrBits(&cm, sbrElInfo, bitRate); 536 537 for (e=0; e<cm.nElements; e++) 538 { 539 INT sbrElementBitRateIn, sbrBitRateOut; 540 541 if (cm.elInfo[e].elType != ID_SCE && cm.elInfo[e].elType != ID_CPE) { 542 continue; 543 } 544 sbrElementBitRateIn = sbrElInfo[e].bitRate; 545 sbrBitRateOut = sbrEncoder_LimitBitRate(sbrElementBitRateIn , cm.elInfo[e].nChannelsInEl, coreSamplingRate, aot); 546 if (sbrBitRateOut == 0) { 547 return 0; 548 } 549 if (sbrElementBitRateIn < sbrBitRateOut) { 550 FDK_ASSERT(tooBig != 1); 551 tooBig = 0; 552 if (e == 0) { 553 sbrBitRate = 0; 554 } 555 } 556 if (sbrElementBitRateIn > sbrBitRateOut) { 557 FDK_ASSERT(tooBig != 0); 558 tooBig = 1; 559 if (e == 0) { 560 sbrBitRate = 5000000; 561 } 562 } 563 if (tooBig != -1) 564 { 565 INT sbrBitRateLimit = (INT)fDivNorm((FIXP_DBL)sbrBitRateOut, cm.elInfo[e].relativeBits); 566 if (tooBig) { 567 sbrBitRate = fMin(sbrBitRate, sbrBitRateLimit-16); 568 FDK_ASSERT( (INT)fMultNorm(cm.elInfo[e].relativeBits, (FIXP_DBL)sbrBitRate) < sbrBitRateOut); 569 } else { 570 sbrBitRate = fMax(sbrBitRate, sbrBitRateLimit+16); 571 FDK_ASSERT( (INT)fMultNorm(cm.elInfo[e].relativeBits, (FIXP_DBL)sbrBitRate) >= sbrBitRateOut); 572 } 573 } 574 } 575 if (tooBig != -1) { 576 bitRate = sbrBitRate; 577 } 578 } 579 580 FDK_ASSERT(bitRate > 0); 581 582 return bitRate; 583 } 584 585 /* 586 * \brief Consistency check of given USER_PARAM struct and 587 * copy back configuration from public struct into internal 588 * encoder configuration struct. 589 * 590 * \hAacEncoder Internal encoder config which is to be updated 591 * \param config User provided config (public struct) 592 * \return returns always AAC_ENC_OK 593 */ 594 static 595 AACENC_ERROR FDKaacEnc_AdjustEncSettings(HANDLE_AACENCODER hAacEncoder, 596 USER_PARAM *config) 597 { 598 AACENC_ERROR err = AACENC_OK; 599 600 /* Get struct pointers. */ 601 HANDLE_AACENC_CONFIG hAacConfig = &hAacEncoder->aacConfig; 602 603 hAacConfig->nChannels = config->nChannels; 604 605 /* Encoder settings update. */ 606 hAacConfig->sampleRate = config->userSamplerate; 607 hAacConfig->useTns = config->userTns; 608 hAacConfig->usePns = config->userPns; 609 hAacConfig->useIS = config->userIntensity; 610 hAacConfig->bitRate = config->userBitrate; 611 hAacConfig->channelMode = config->userChannelMode; 612 hAacConfig->bitrateMode = config->userBitrateMode; 613 hAacConfig->bandWidth = config->userBandwidth; 614 hAacConfig->useRequant = config->userAfterburner; 615 616 hAacConfig->audioObjectType = config->userAOT; 617 hAacConfig->anc_Rate = config->userAncDataRate; 618 hAacConfig->syntaxFlags = 0; 619 hAacConfig->epConfig = -1; 620 621 /* Adapt internal AOT when necessary. */ 622 switch ( hAacConfig->audioObjectType ) { 623 case AOT_MP2_AAC_LC: 624 case AOT_MP2_SBR: 625 case AOT_MP2_PS: 626 hAacConfig->usePns = 0; 627 if (config->userTpSignaling!=0) { 628 return AACENC_INVALID_CONFIG; /* only implicit signaling allowed */ 629 } 630 case AOT_AAC_LC: 631 case AOT_SBR: 632 case AOT_PS: 633 config->userTpType = (config->userTpType!=TT_UNKNOWN) ? config->userTpType : TT_MP4_ADTS; 634 hAacConfig->framelength = (config->userFramelength!=(UINT)-1) ? config->userFramelength : 1024; 635 if (hAacConfig->framelength != 1024 && hAacConfig->framelength != 960) { 636 return AACENC_INVALID_CONFIG; 637 } 638 break; 639 case AOT_ER_AAC_LC: 640 hAacConfig->epConfig = 0; 641 hAacConfig->syntaxFlags |= AC_ER; 642 hAacConfig->syntaxFlags |= ((config->userErTools & 0x1) ? AC_ER_VCB11 : 0); 643 hAacConfig->syntaxFlags |= ((config->userErTools & 0x2) ? AC_ER_HCR : 0); 644 config->userTpType = (config->userTpType!=TT_UNKNOWN) ? config->userTpType : TT_MP4_LOAS; 645 hAacConfig->framelength = (config->userFramelength!=(UINT)-1) ? config->userFramelength : 1024; 646 if (hAacConfig->framelength != 1024 && hAacConfig->framelength != 960) { 647 return AACENC_INVALID_CONFIG; 648 } 649 break; 650 case AOT_ER_AAC_LD: 651 hAacConfig->epConfig = 0; 652 hAacConfig->syntaxFlags |= AC_ER|AC_LD; 653 hAacConfig->syntaxFlags |= ((config->userErTools & 0x1) ? AC_ER_VCB11 : 0); 654 hAacConfig->syntaxFlags |= ((config->userErTools & 0x2) ? AC_ER_HCR : 0); 655 hAacConfig->syntaxFlags |= ((config->userErTools & 0x4) ? AC_ER_RVLC : 0); 656 config->userTpType = (config->userTpType!=TT_UNKNOWN) ? config->userTpType : TT_MP4_LOAS; 657 hAacConfig->framelength = (config->userFramelength!=(UINT)-1) ? config->userFramelength : 512; 658 if (hAacConfig->framelength != 512 && hAacConfig->framelength != 480) { 659 return AACENC_INVALID_CONFIG; 660 } 661 break; 662 case AOT_ER_AAC_ELD: 663 hAacConfig->epConfig = 0; 664 hAacConfig->syntaxFlags |= AC_ER|AC_ELD; 665 hAacConfig->syntaxFlags |= ((config->userErTools & 0x1) ? AC_ER_VCB11 : 0); 666 hAacConfig->syntaxFlags |= ((config->userErTools & 0x2) ? AC_ER_HCR : 0); 667 hAacConfig->syntaxFlags |= ((config->userErTools & 0x4) ? AC_ER_RVLC : 0); 668 hAacConfig->syntaxFlags |= ((config->userSbrEnabled) ? AC_SBR_PRESENT : 0); 669 config->userTpType = (config->userTpType!=TT_UNKNOWN) ? config->userTpType : TT_MP4_LOAS; 670 hAacConfig->framelength = (config->userFramelength!=(UINT)-1) ? config->userFramelength : 512; 671 if (hAacConfig->framelength != 512 && hAacConfig->framelength != 480) { 672 return AACENC_INVALID_CONFIG; 673 } 674 break; 675 default: 676 break; 677 } 678 679 /* We need the frame length to call aacEncoder_LimitBitrate() */ 680 hAacConfig->bitRate = aacEncoder_LimitBitrate( 681 NULL, 682 hAacConfig->sampleRate, 683 hAacConfig->framelength, 684 hAacConfig->nChannels, 685 hAacConfig->channelMode, 686 config->userBitrate, 687 hAacConfig->nSubFrames, 688 isSbrActive(hAacConfig), 689 hAacConfig->audioObjectType 690 ); 691 692 switch ( hAacConfig->audioObjectType ) { 693 case AOT_ER_AAC_LD: 694 case AOT_ER_AAC_ELD: 695 if (config->userBitrateMode==8) { 696 hAacConfig->bitrateMode = 0; 697 } 698 if (config->userBitrateMode==0) { 699 hAacConfig->bitreservoir = 50*config->nChannels; /* default, reduced bitreservoir */ 700 } 701 if (hAacConfig->bitrateMode!=0) { 702 return AACENC_INVALID_CONFIG; 703 } 704 break; 705 default: 706 break; 707 } 708 709 if (hAacConfig->epConfig >= 0) { 710 hAacConfig->syntaxFlags |= AC_ER; 711 if (((INT)hAacConfig->channelMode < 1) || ((INT)hAacConfig->channelMode > 7)) { 712 return AACENC_INVALID_CONFIG; /* Cannel config 0 not supported. */ 713 } 714 } 715 716 if ( FDKaacEnc_DetermineEncoderMode(&hAacConfig->channelMode, hAacConfig->nChannels) != AAC_ENC_OK) { 717 return AACENC_INVALID_CONFIG; /* nChannels doesn't match chMode, this is just a check-up */ 718 } 719 720 if ( (hAacConfig->nChannels > hAacEncoder->nMaxAacChannels) 721 || ( (FDKaacEnc_GetChannelModeConfiguration(hAacConfig->channelMode)->nChannelsEff > hAacEncoder->nMaxSbrChannels) && 722 isSbrActive(hAacConfig) ) 723 ) 724 { 725 return AACENC_INVALID_CONFIG; /* not enough channels allocated */ 726 } 727 728 /* get bitrate in VBR configuration */ 729 if ( (hAacConfig->bitrateMode>=1) && (hAacConfig->bitrateMode<=5) ) { 730 /* In VBR mode; SBR-modul depends on bitrate, core encoder on bitrateMode. */ 731 hAacConfig->bitRate = FDKaacEnc_GetVBRBitrate(hAacConfig->bitrateMode, hAacConfig->channelMode); 732 } 733 734 735 736 /* Set default bitrate if no external bitrate declared. */ 737 if (hAacConfig->bitRate==-1) { 738 INT bitrate = FDKaacEnc_GetChannelModeConfiguration(hAacConfig->channelMode)->nChannelsEff * hAacConfig->sampleRate; 739 switch (hAacConfig->audioObjectType) 740 { 741 case AOT_AAC_LC: 742 hAacConfig->bitRate = bitrate + (bitrate>>1); /* 1.5 bits per sample */ 743 break; 744 case AOT_SBR: 745 hAacConfig->bitRate = (bitrate + (bitrate>>2))>>1; /* 0.625 bits per sample */ 746 break; 747 case AOT_PS: 748 hAacConfig->bitRate = (bitrate>>1); /* 0.5 bit per sample */ 749 break; 750 default: 751 hAacConfig->bitRate = bitrate; 752 break; 753 } 754 } 755 756 /* Configure PNS */ 757 if ( ((hAacConfig->bitrateMode>=1) && (hAacConfig->bitrateMode<=5)) /* VBR without PNS. */ 758 || (hAacConfig->useTns == 0) ) /* TNS required. */ 759 { 760 hAacConfig->usePns = 0; 761 } 762 763 /* Meta data restriction. */ 764 switch (hAacConfig->audioObjectType) 765 { 766 /* Allow metadata support */ 767 case AOT_AAC_LC: 768 case AOT_SBR: 769 hAacEncoder->metaDataAllowed = 1; 770 if (((INT)hAacConfig->channelMode < 1) || ((INT)hAacConfig->channelMode > 7)) { 771 config->userMetaDataMode = 0; 772 } 773 break; 774 /* Prohibit metadata support */ 775 default: 776 hAacEncoder->metaDataAllowed = 0; 777 } 778 779 return err; 780 } 781 782 static 783 INT aacenc_SbrCallback( 784 void * self, 785 HANDLE_FDK_BITSTREAM hBs, 786 const INT sampleRateIn, 787 const INT sampleRateOut, 788 const INT samplesPerFrame, 789 const AUDIO_OBJECT_TYPE coreCodec, 790 const MP4_ELEMENT_ID elementID, 791 const INT elementIndex 792 ) 793 { 794 HANDLE_AACENCODER hAacEncoder = (HANDLE_AACENCODER)self; 795 796 sbrEncoder_GetHeader(hAacEncoder->hEnvEnc, hBs, elementIndex, 0); 797 798 return 0; 799 } 800 801 static AACENC_ERROR aacEncInit(HANDLE_AACENCODER hAacEncoder, 802 ULONG InitFlags, 803 USER_PARAM *config) 804 { 805 AACENC_ERROR err = AACENC_OK; 806 807 INT aacBufferOffset = 0; 808 HANDLE_SBR_ENCODER *hSbrEncoder = &hAacEncoder->hEnvEnc; 809 HANDLE_AACENC_CONFIG hAacConfig = &hAacEncoder->aacConfig; 810 811 hAacEncoder->nZerosAppended = 0; /* count appended zeros */ 812 813 INT frameLength = hAacConfig->framelength; 814 815 if ( (InitFlags & AACENC_INIT_CONFIG) ) 816 { 817 CHANNEL_MODE prevChMode = hAacConfig->channelMode; 818 819 /* Verify settings and update: config -> heAacEncoder */ 820 if ( (err=FDKaacEnc_AdjustEncSettings(hAacEncoder, config)) != AACENC_OK ) { 821 return err; 822 } 823 frameLength = hAacConfig->framelength; /* adapt temporal framelength */ 824 825 /* Seamless channel reconfiguration in sbr not fully implemented */ 826 if ( (prevChMode!=hAacConfig->channelMode) && isSbrActive(hAacConfig) ) { 827 InitFlags |= AACENC_INIT_STATES; 828 } 829 } 830 831 /* Clear input buffer */ 832 if ( (InitFlags == AACENC_INIT_ALL) ) { 833 FDKmemclear(hAacEncoder->inputBuffer, sizeof(INT_PCM)*hAacEncoder->nMaxAacChannels*INPUTBUFFER_SIZE); 834 } 835 836 if ( (InitFlags & AACENC_INIT_CONFIG) ) 837 { 838 aacBufferOffset = 0; 839 if (hAacConfig->audioObjectType == AOT_ER_AAC_ELD) { 840 hAacEncoder->nDelay = DELAY_AACELD(hAacConfig->framelength); 841 } else 842 { 843 hAacEncoder->nDelay = DELAY_AAC(hAacConfig->framelength); /* AAC encoder delay */ 844 } 845 hAacConfig->ancDataBitRate = 0; 846 } 847 848 if ( isSbrActive(hAacConfig) && 849 ((InitFlags & AACENC_INIT_CONFIG) || (InitFlags & AACENC_INIT_STATES)) ) 850 { 851 INT sbrError; 852 SBR_ELEMENT_INFO sbrElInfo[(6)]; 853 CHANNEL_MAPPING channelMapping; 854 855 AUDIO_OBJECT_TYPE aot = hAacConfig->audioObjectType; 856 857 if ( FDKaacEnc_InitChannelMapping(hAacConfig->channelMode, 858 hAacConfig->channelOrder, 859 &channelMapping) != AAC_ENC_OK ) 860 { 861 return AACENC_INIT_ERROR; 862 } 863 864 /* Check return value and if the SBR encoder can handle enough elements */ 865 if (channelMapping.nElements > (6)) { 866 return AACENC_INIT_ERROR; 867 } 868 869 aacEncDistributeSbrBits(&channelMapping, sbrElInfo, hAacConfig->bitRate); 870 871 UINT initFlag = 0; 872 initFlag += (InitFlags & AACENC_INIT_STATES) ? 1 : 0; 873 874 /* Let the SBR encoder take a look at the configuration and change if required. */ 875 sbrError = sbrEncoder_Init( 876 *hSbrEncoder, 877 sbrElInfo, 878 channelMapping.nElements, 879 hAacEncoder->inputBuffer, 880 &hAacConfig->bandWidth, 881 &aacBufferOffset, 882 &hAacConfig->nChannels, 883 &hAacConfig->sampleRate, 884 &frameLength, 885 &hAacConfig->audioObjectType, 886 &hAacEncoder->nDelay, 887 (hAacConfig->audioObjectType == AOT_ER_AAC_ELD) ? 1 : TRANS_FAC, 888 initFlag 889 ); 890 891 /* Suppress AOT reconfiguration and check error status. */ 892 if ( sbrError || (hAacConfig->audioObjectType!=aot) ) { 893 return AACENC_INIT_SBR_ERROR; 894 } 895 896 if (hAacConfig->nChannels == 1) { 897 hAacConfig->channelMode = MODE_1; 898 } 899 900 /* Never use PNS if SBR is active */ 901 if ( hAacConfig->usePns ) { 902 hAacConfig->usePns = 0; 903 } 904 905 /* estimated bitrate consumed by SBR or PS */ 906 hAacConfig->ancDataBitRate = sbrEncoder_GetEstimateBitrate(*hSbrEncoder) ; 907 908 } /* sbr initialization */ 909 910 911 /* 912 * Initialize Transport - Module. 913 */ 914 if ( (InitFlags & AACENC_INIT_TRANSPORT) ) 915 { 916 UINT flags = 0; 917 918 FDKaacEnc_MapConfig(&hAacEncoder->coderConfig, config, hAacConfig); 919 920 /* create flags for transport encoder */ 921 if (config->userTpAmxv == 1) { 922 flags |= TP_FLAG_LATM_AMV; 923 } 924 /* Clear output buffer */ 925 FDKmemclear(hAacEncoder->outBuffer, hAacEncoder->outBufferInBytes*sizeof(UCHAR)); 926 927 /* Initialize Bitstream encoder */ 928 if ( transportEnc_Init(hAacEncoder->hTpEnc, hAacEncoder->outBuffer, hAacEncoder->outBufferInBytes, config->userTpType, &hAacEncoder->coderConfig, flags) != 0) { 929 return AACENC_INIT_TP_ERROR; 930 } 931 932 } /* transport initialization */ 933 934 /* 935 * Initialize AAC - Core. 936 */ 937 if ( (InitFlags & AACENC_INIT_CONFIG) || 938 (InitFlags & AACENC_INIT_STATES) ) 939 { 940 AAC_ENCODER_ERROR err; 941 err = FDKaacEnc_Initialize(hAacEncoder->hAacEnc, 942 hAacConfig, 943 hAacEncoder->hTpEnc, 944 (InitFlags & AACENC_INIT_STATES) ? 1 : 0); 945 946 if (err != AAC_ENC_OK) { 947 return AACENC_INIT_AAC_ERROR; 948 } 949 950 } /* aac initialization */ 951 952 /* 953 * Initialize Meta Data - Encoder. 954 */ 955 if ( hAacEncoder->hMetadataEnc && (hAacEncoder->metaDataAllowed!=0) && 956 ((InitFlags & AACENC_INIT_CONFIG) ||(InitFlags & AACENC_INIT_STATES)) ) 957 { 958 INT inputDataDelay = DELAY_AAC(hAacConfig->framelength); 959 960 if ( isSbrActive(hAacConfig) && hSbrEncoder!=NULL) { 961 inputDataDelay = 2*inputDataDelay + sbrEncoder_GetInputDataDelay(*hSbrEncoder); 962 } 963 964 if ( FDK_MetadataEnc_Init(hAacEncoder->hMetadataEnc, 965 ((InitFlags&AACENC_INIT_STATES) ? 1 : 0), 966 config->userMetaDataMode, 967 inputDataDelay, 968 frameLength, 969 config->userSamplerate, 970 config->nChannels, 971 config->userChannelMode, 972 hAacConfig->channelOrder) != 0) 973 { 974 return AACENC_INIT_META_ERROR; 975 } 976 977 hAacEncoder->nDelay += FDK_MetadataEnc_GetDelay(hAacEncoder->hMetadataEnc); 978 } 979 980 /* 981 * Update pointer to working buffer. 982 */ 983 if ( (InitFlags & AACENC_INIT_CONFIG) ) 984 { 985 hAacEncoder->inputBufferOffset = aacBufferOffset; 986 987 hAacEncoder->nSamplesToRead = frameLength * config->nChannels; 988 989 /* Make nDelay comparison compatible with config->nSamplesRead */ 990 hAacEncoder->nDelay *= config->nChannels; 991 992 } /* parameter changed */ 993 994 return AACENC_OK; 995 } 996 997 998 AACENC_ERROR aacEncOpen( 999 HANDLE_AACENCODER *phAacEncoder, 1000 const UINT encModules, 1001 const UINT maxChannels 1002 ) 1003 { 1004 AACENC_ERROR err = AACENC_OK; 1005 HANDLE_AACENCODER hAacEncoder = NULL; 1006 1007 if (phAacEncoder == NULL) { 1008 err = AACENC_INVALID_HANDLE; 1009 goto bail; 1010 } 1011 1012 /* allocate memory */ 1013 hAacEncoder = Get_AacEncoder(); 1014 1015 if (hAacEncoder == NULL) { 1016 err = AACENC_MEMORY_ERROR; 1017 goto bail; 1018 } 1019 1020 FDKmemclear(hAacEncoder, sizeof(AACENCODER)); 1021 1022 /* Specify encoder modules to be allocated. */ 1023 if (encModules==0) { 1024 hAacEncoder->encoder_modis = ENC_MODE_FLAG_AAC; 1025 hAacEncoder->encoder_modis |= ENC_MODE_FLAG_SBR; 1026 hAacEncoder->encoder_modis |= ENC_MODE_FLAG_PS; 1027 hAacEncoder->encoder_modis |= ENC_MODE_FLAG_META; 1028 } 1029 else { 1030 /* consider SAC and PS module */ 1031 hAacEncoder->encoder_modis = encModules; 1032 } 1033 1034 /* Determine max channel configuration. */ 1035 if (maxChannels==0) { 1036 hAacEncoder->nMaxAacChannels = (6); 1037 hAacEncoder->nMaxSbrChannels = (6); 1038 } 1039 else { 1040 hAacEncoder->nMaxAacChannels = (maxChannels&0x00FF); 1041 if ( (hAacEncoder->encoder_modis&ENC_MODE_FLAG_SBR) ) { 1042 hAacEncoder->nMaxSbrChannels = (maxChannels&0xFF00) ? (maxChannels>>8) : hAacEncoder->nMaxAacChannels; 1043 } 1044 1045 if ( (hAacEncoder->nMaxAacChannels>(6)) || (hAacEncoder->nMaxSbrChannels>(6)) ) { 1046 err = AACENC_INVALID_CONFIG; 1047 goto bail; 1048 } 1049 } /* maxChannels==0 */ 1050 1051 /* Max number of elements could be tuned any more. */ 1052 hAacEncoder->nMaxAacElements = fixMin((6), hAacEncoder->nMaxAacChannels); 1053 hAacEncoder->nMaxSbrElements = fixMin((6), hAacEncoder->nMaxSbrChannels); 1054 hAacEncoder->nMaxSubFrames = (1); 1055 1056 1057 /* In case of memory overlay, allocate memory out of libraries */ 1058 1059 hAacEncoder->inputBuffer = (INT_PCM*)FDKcalloc(hAacEncoder->nMaxAacChannels*INPUTBUFFER_SIZE, sizeof(INT_PCM)); 1060 1061 /* Open SBR Encoder */ 1062 if (hAacEncoder->encoder_modis&ENC_MODE_FLAG_SBR) { 1063 if ( sbrEncoder_Open(&hAacEncoder->hEnvEnc, 1064 hAacEncoder->nMaxSbrElements, 1065 hAacEncoder->nMaxSbrChannels, 1066 (hAacEncoder->encoder_modis&ENC_MODE_FLAG_PS) ? 1 : 0 ) ) 1067 { 1068 err = AACENC_MEMORY_ERROR; 1069 goto bail; 1070 } 1071 } /* (encoder_modis&ENC_MODE_FLAG_SBR) */ 1072 1073 1074 /* Open Aac Encoder */ 1075 if ( FDKaacEnc_Open(&hAacEncoder->hAacEnc, 1076 hAacEncoder->nMaxAacElements, 1077 hAacEncoder->nMaxAacChannels, 1078 (1)) != AAC_ENC_OK ) 1079 { 1080 err = AACENC_MEMORY_ERROR; 1081 goto bail; 1082 } 1083 1084 { /* Get bitstream outputbuffer size */ 1085 UINT ld_M; 1086 for (ld_M=1; (UINT)(1<<ld_M) < (hAacEncoder->nMaxSubFrames*hAacEncoder->nMaxAacChannels*6144)>>3; ld_M++) ; 1087 hAacEncoder->outBufferInBytes = (1<<ld_M); /* buffer has to be 2^n */ 1088 } 1089 hAacEncoder->outBuffer = GetRam_bsOutbuffer(); 1090 if (OUTPUTBUFFER_SIZE < hAacEncoder->outBufferInBytes ) { 1091 err = AACENC_MEMORY_ERROR; 1092 goto bail; 1093 } 1094 1095 /* Open Meta Data Encoder */ 1096 if (hAacEncoder->encoder_modis&ENC_MODE_FLAG_META) { 1097 if ( FDK_MetadataEnc_Open(&hAacEncoder->hMetadataEnc) ) 1098 { 1099 err = AACENC_MEMORY_ERROR; 1100 goto bail; 1101 } 1102 } /* (encoder_modis&ENC_MODE_FLAG_META) */ 1103 1104 /* Open Transport Encoder */ 1105 if ( transportEnc_Open(&hAacEncoder->hTpEnc) != 0 ) 1106 { 1107 err = AACENC_MEMORY_ERROR; 1108 goto bail; 1109 } 1110 else { 1111 C_ALLOC_SCRATCH_START(pLibInfo, LIB_INFO, FDK_MODULE_LAST); 1112 1113 FDKinitLibInfo( pLibInfo); 1114 transportEnc_GetLibInfo( pLibInfo ); 1115 1116 /* Get capabilty flag for transport encoder. */ 1117 hAacEncoder->CAPF_tpEnc = FDKlibInfo_getCapabilities( pLibInfo, FDK_TPENC); 1118 1119 C_ALLOC_SCRATCH_END(pLibInfo, LIB_INFO, FDK_MODULE_LAST); 1120 } 1121 if ( transportEnc_RegisterSbrCallback(hAacEncoder->hTpEnc, aacenc_SbrCallback, hAacEncoder) != 0 ) { 1122 err = AACENC_INIT_TP_ERROR; 1123 goto bail; 1124 } 1125 1126 /* Initialize encoder instance with default parameters. */ 1127 aacEncDefaultConfig(&hAacEncoder->aacConfig, &hAacEncoder->extParam); 1128 1129 /* Initialize headerPeriod in coderConfig for aacEncoder_GetParam(). */ 1130 hAacEncoder->coderConfig.headerPeriod = hAacEncoder->extParam.userTpHeaderPeriod; 1131 1132 /* All encoder modules have to be initialized */ 1133 hAacEncoder->InitFlags = AACENC_INIT_ALL; 1134 1135 /* Return encoder instance */ 1136 *phAacEncoder = hAacEncoder; 1137 1138 return err; 1139 1140 bail: 1141 aacEncClose(&hAacEncoder); 1142 1143 return err; 1144 } 1145 1146 1147 1148 AACENC_ERROR aacEncClose(HANDLE_AACENCODER *phAacEncoder) 1149 { 1150 AACENC_ERROR err = AACENC_OK; 1151 1152 if (phAacEncoder == NULL) { 1153 err = AACENC_INVALID_HANDLE; 1154 goto bail; 1155 } 1156 1157 if (*phAacEncoder != NULL) { 1158 HANDLE_AACENCODER hAacEncoder = *phAacEncoder; 1159 1160 1161 if (hAacEncoder->inputBuffer!=NULL) { 1162 FDKfree(hAacEncoder->inputBuffer); 1163 hAacEncoder->inputBuffer = NULL; 1164 } 1165 1166 if (hAacEncoder->outBuffer) { 1167 FreeRam_bsOutbuffer(&hAacEncoder->outBuffer); 1168 } 1169 1170 if (hAacEncoder->hEnvEnc) { 1171 sbrEncoder_Close (&hAacEncoder->hEnvEnc); 1172 } 1173 if (hAacEncoder->hAacEnc) { 1174 FDKaacEnc_Close (&hAacEncoder->hAacEnc); 1175 } 1176 1177 transportEnc_Close(&hAacEncoder->hTpEnc); 1178 1179 if (hAacEncoder->hMetadataEnc) { 1180 FDK_MetadataEnc_Close (&hAacEncoder->hMetadataEnc); 1181 } 1182 1183 Free_AacEncoder(phAacEncoder); 1184 } 1185 1186 bail: 1187 return err; 1188 } 1189 1190 AACENC_ERROR aacEncEncode( 1191 const HANDLE_AACENCODER hAacEncoder, 1192 const AACENC_BufDesc *inBufDesc, 1193 const AACENC_BufDesc *outBufDesc, 1194 const AACENC_InArgs *inargs, 1195 AACENC_OutArgs *outargs 1196 ) 1197 { 1198 AACENC_ERROR err = AACENC_OK; 1199 INT i, nBsBytes = 0; 1200 INT outBytes[(1)]; 1201 int nExtensions = 0; 1202 int ancDataExtIdx = -1; 1203 1204 /* deal with valid encoder handle */ 1205 if (hAacEncoder==NULL) { 1206 err = AACENC_INVALID_HANDLE; 1207 goto bail; 1208 } 1209 1210 1211 /* 1212 * Adjust user settings and trigger reinitialization. 1213 */ 1214 if (hAacEncoder->InitFlags!=0) { 1215 1216 err = aacEncInit(hAacEncoder, 1217 hAacEncoder->InitFlags, 1218 &hAacEncoder->extParam); 1219 1220 if (err!=AACENC_OK) { 1221 /* keep init flags alive! */ 1222 goto bail; 1223 } 1224 hAacEncoder->InitFlags = AACENC_INIT_NONE; 1225 } 1226 1227 if (outargs!=NULL) { 1228 FDKmemclear(outargs, sizeof(AACENC_OutArgs)); 1229 } 1230 1231 if (outBufDesc!=NULL) { 1232 for (i=0; i<outBufDesc->numBufs; i++) { 1233 if (outBufDesc->bufs[i]!=NULL) { 1234 FDKmemclear(outBufDesc->bufs[i], outBufDesc->bufSizes[i]); 1235 } 1236 } 1237 } 1238 1239 /* 1240 * If only encoder handle given, independent (re)initialization can be triggered. 1241 */ 1242 if ( (hAacEncoder!=NULL) & (inBufDesc==NULL) && (outBufDesc==NULL) && (inargs==NULL) && (outargs==NULL) ) { 1243 goto bail; 1244 } 1245 1246 /* reset buffer wich signals number of valid bytes in output bitstream buffer */ 1247 FDKmemclear(outBytes, hAacEncoder->aacConfig.nSubFrames*sizeof(INT)); 1248 1249 /* 1250 * Manage incoming audio samples. 1251 */ 1252 if ( (inargs->numInSamples > 0) && (getBufDescIdx(inBufDesc,IN_AUDIO_DATA) != -1) ) 1253 { 1254 /* Fetch data until nSamplesToRead reached */ 1255 INT idx = getBufDescIdx(inBufDesc,IN_AUDIO_DATA); 1256 INT newSamples = fixMax(0,fixMin(inargs->numInSamples, hAacEncoder->nSamplesToRead-hAacEncoder->nSamplesRead)); 1257 INT_PCM *pIn = hAacEncoder->inputBuffer+hAacEncoder->inputBufferOffset+hAacEncoder->nSamplesRead; 1258 1259 /* Copy new input samples to internal buffer */ 1260 if (inBufDesc->bufElSizes[idx]==(INT)sizeof(INT_PCM)) { 1261 FDKmemcpy(pIn, (INT_PCM*)inBufDesc->bufs[idx], newSamples*sizeof(INT_PCM)); /* Fast copy. */ 1262 } 1263 else if (inBufDesc->bufElSizes[idx]>(INT)sizeof(INT_PCM)) { 1264 for (i=0; i<newSamples; i++) { 1265 pIn[i] = (INT_PCM)(((LONG*)inBufDesc->bufs[idx])[i]>>16); /* Convert 32 to 16 bit. */ 1266 } 1267 } 1268 else { 1269 for (i=0; i<newSamples; i++) { 1270 pIn[i] = ((INT_PCM)(((SHORT*)inBufDesc->bufs[idx])[i]))<<16; /* Convert 16 to 32 bit. */ 1271 } 1272 } 1273 hAacEncoder->nSamplesRead += newSamples; 1274 1275 /* Number of fetched input buffer samples. */ 1276 outargs->numInSamples = newSamples; 1277 } 1278 1279 /* input buffer completely filled ? */ 1280 if (hAacEncoder->nSamplesRead < hAacEncoder->nSamplesToRead) 1281 { 1282 /* - eof reached and flushing enabled, or 1283 - return to main and wait for further incoming audio samples */ 1284 if (inargs->numInSamples==-1) 1285 { 1286 if ( (hAacEncoder->nZerosAppended < hAacEncoder->nDelay) 1287 ) 1288 { 1289 int nZeros = hAacEncoder->nSamplesToRead - hAacEncoder->nSamplesRead; 1290 1291 FDK_ASSERT(nZeros >= 0); 1292 1293 /* clear out until end-of-buffer */ 1294 if (nZeros) { 1295 FDKmemclear(hAacEncoder->inputBuffer+hAacEncoder->inputBufferOffset+hAacEncoder->nSamplesRead, sizeof(INT_PCM)*nZeros ); 1296 hAacEncoder->nZerosAppended += nZeros; 1297 hAacEncoder->nSamplesRead = hAacEncoder->nSamplesToRead; 1298 } 1299 } 1300 else { /* flushing completed */ 1301 err = AACENC_ENCODE_EOF; /* eof reached */ 1302 goto bail; 1303 } 1304 } 1305 else { /* inargs->numInSamples!= -1 */ 1306 goto bail; /* not enough samples in input buffer and no flushing enabled */ 1307 } 1308 } 1309 1310 /* init payload */ 1311 FDKmemclear(hAacEncoder->extPayload, sizeof(AACENC_EXT_PAYLOAD) * MAX_TOTAL_EXT_PAYLOADS); 1312 for (i = 0; i < MAX_TOTAL_EXT_PAYLOADS; i++) { 1313 hAacEncoder->extPayload[i].associatedChElement = -1; 1314 } 1315 FDKmemclear(hAacEncoder->extPayloadData, sizeof(hAacEncoder->extPayloadData)); 1316 FDKmemclear(hAacEncoder->extPayloadSize, sizeof(hAacEncoder->extPayloadSize)); 1317 1318 1319 /* 1320 * Calculate Meta Data info. 1321 */ 1322 if ( (hAacEncoder->hMetadataEnc!=NULL) && (hAacEncoder->metaDataAllowed!=0) ) { 1323 1324 const AACENC_MetaData *pMetaData = NULL; 1325 AACENC_EXT_PAYLOAD *pMetaDataExtPayload = NULL; 1326 UINT nMetaDataExtensions = 0; 1327 INT matrix_mixdown_idx = 0; 1328 1329 /* New meta data info available ? */ 1330 if ( getBufDescIdx(inBufDesc,IN_METADATA_SETUP) != -1 ) { 1331 pMetaData = (AACENC_MetaData*)inBufDesc->bufs[getBufDescIdx(inBufDesc,IN_METADATA_SETUP)]; 1332 } 1333 1334 FDK_MetadataEnc_Process(hAacEncoder->hMetadataEnc, 1335 hAacEncoder->inputBuffer+hAacEncoder->inputBufferOffset, 1336 hAacEncoder->nSamplesRead, 1337 pMetaData, 1338 &pMetaDataExtPayload, 1339 &nMetaDataExtensions, 1340 &matrix_mixdown_idx 1341 ); 1342 1343 for (i=0; i<(INT)nMetaDataExtensions; i++) { /* Get meta data extension payload. */ 1344 hAacEncoder->extPayload[nExtensions++] = pMetaDataExtPayload[i]; 1345 } 1346 if (matrix_mixdown_idx!=-1) { /* Set matrix mixdown coefficient. */ 1347 UINT pceValue = (UINT)( (1<<3) | ((matrix_mixdown_idx&0x2)<<1) | 1 ); 1348 if (hAacEncoder->extParam.userPceAdditions != pceValue) { 1349 hAacEncoder->extParam.userPceAdditions = pceValue; 1350 hAacEncoder->InitFlags |= AACENC_INIT_TRANSPORT; 1351 } 1352 } 1353 } 1354 1355 1356 if ( isSbrActive(&hAacEncoder->aacConfig) ) { 1357 1358 INT nPayload = 0; 1359 1360 /* 1361 * Encode SBR data. 1362 */ 1363 if (sbrEncoder_EncodeFrame(hAacEncoder->hEnvEnc, 1364 hAacEncoder->inputBuffer, 1365 hAacEncoder->extParam.nChannels, 1366 hAacEncoder->extPayloadSize[nPayload], 1367 hAacEncoder->extPayloadData[nPayload] 1368 #if defined(EVAL_PACKAGE_SILENCE) || defined(EVAL_PACKAGE_SBR_SILENCE) 1369 ,hAacEncoder->hAacEnc->clearOutput 1370 #endif 1371 )) 1372 { 1373 err = AACENC_ENCODE_ERROR; 1374 goto bail; 1375 } 1376 else { 1377 /* Add SBR extension payload */ 1378 for (i = 0; i < (6); i++) { 1379 if (hAacEncoder->extPayloadSize[nPayload][i] > 0) { 1380 hAacEncoder->extPayload[nExtensions].pData = hAacEncoder->extPayloadData[nPayload][i]; 1381 { 1382 hAacEncoder->extPayload[nExtensions].dataSize = hAacEncoder->extPayloadSize[nPayload][i]; 1383 hAacEncoder->extPayload[nExtensions].associatedChElement = i; 1384 } 1385 hAacEncoder->extPayload[nExtensions].dataType = EXT_SBR_DATA; /* Once SBR Encoder supports SBR CRC set EXT_SBR_DATA_CRC */ 1386 nExtensions++; /* or EXT_SBR_DATA according to configuration. */ 1387 FDK_ASSERT(nExtensions<=MAX_TOTAL_EXT_PAYLOADS); 1388 } 1389 } 1390 nPayload++; 1391 } 1392 } /* sbrEnabled */ 1393 1394 if ( (inargs->numAncBytes > 0) && ( getBufDescIdx(inBufDesc,IN_ANCILLRY_DATA)!=-1 ) ) { 1395 INT idx = getBufDescIdx(inBufDesc,IN_ANCILLRY_DATA); 1396 hAacEncoder->extPayload[nExtensions].dataSize = inargs->numAncBytes * 8; 1397 hAacEncoder->extPayload[nExtensions].pData = (UCHAR*)inBufDesc->bufs[idx]; 1398 hAacEncoder->extPayload[nExtensions].dataType = EXT_DATA_ELEMENT; 1399 hAacEncoder->extPayload[nExtensions].associatedChElement = -1; 1400 ancDataExtIdx = nExtensions; /* store index */ 1401 nExtensions++; 1402 } 1403 1404 /* 1405 * Encode AAC - Core. 1406 */ 1407 if ( FDKaacEnc_EncodeFrame( hAacEncoder->hAacEnc, 1408 hAacEncoder->hTpEnc, 1409 hAacEncoder->inputBuffer, 1410 outBytes, 1411 hAacEncoder->extPayload 1412 ) != AAC_ENC_OK ) 1413 { 1414 err = AACENC_ENCODE_ERROR; 1415 goto bail; 1416 } 1417 1418 if (ancDataExtIdx >= 0) { 1419 outargs->numAncBytes = inargs->numAncBytes - (hAacEncoder->extPayload[ancDataExtIdx].dataSize>>3); 1420 } 1421 1422 /* samples exhausted */ 1423 hAacEncoder->nSamplesRead -= hAacEncoder->nSamplesToRead; 1424 1425 /* 1426 * Delay balancing buffer handling 1427 */ 1428 if (isSbrActive(&hAacEncoder->aacConfig)) { 1429 sbrEncoder_UpdateBuffers(hAacEncoder->hEnvEnc, hAacEncoder->inputBuffer); 1430 } 1431 1432 /* 1433 * Make bitstream public 1434 */ 1435 if (outBufDesc->numBufs>=1) { 1436 1437 INT bsIdx = getBufDescIdx(outBufDesc,OUT_BITSTREAM_DATA); 1438 INT auIdx = getBufDescIdx(outBufDesc,OUT_AU_SIZES); 1439 1440 for (i=0,nBsBytes=0; i<hAacEncoder->aacConfig.nSubFrames; i++) { 1441 nBsBytes += outBytes[i]; 1442 1443 if (auIdx!=-1) { 1444 ((INT*)outBufDesc->bufs[auIdx])[i] = outBytes[i]; 1445 } 1446 } 1447 1448 if ( (bsIdx!=-1) && (outBufDesc->bufSizes[bsIdx]>=nBsBytes) ) { 1449 FDKmemcpy(outBufDesc->bufs[bsIdx], hAacEncoder->outBuffer, sizeof(UCHAR)*nBsBytes); 1450 outargs->numOutBytes = nBsBytes; 1451 } 1452 else { 1453 /* output buffer too small, can't write valid bitstream */ 1454 err = AACENC_ENCODE_ERROR; 1455 goto bail; 1456 } 1457 } 1458 1459 bail: 1460 if (err == AACENC_ENCODE_ERROR) { 1461 /* All encoder modules have to be initialized */ 1462 hAacEncoder->InitFlags = AACENC_INIT_ALL; 1463 } 1464 1465 return err; 1466 } 1467 1468 static 1469 AAC_ENCODER_ERROR aacEncGetConf(HANDLE_AACENCODER hAacEncoder, 1470 UINT *size, 1471 UCHAR *confBuffer) 1472 { 1473 FDK_BITSTREAM tmpConf; 1474 UINT confType; 1475 UCHAR buf[64]; 1476 int err; 1477 1478 /* Init bit buffer */ 1479 FDKinitBitStream(&tmpConf, buf, 64, 0, BS_WRITER); 1480 1481 /* write conf in tmp buffer */ 1482 err = transportEnc_GetConf(hAacEncoder->hTpEnc, &hAacEncoder->coderConfig, &tmpConf, &confType); 1483 1484 /* copy data to outbuffer: length in bytes */ 1485 FDKbyteAlign(&tmpConf, 0); 1486 1487 /* Check buffer size */ 1488 if (FDKgetValidBits(&tmpConf) > ((*size)<<3)) 1489 return AAC_ENC_UNKNOWN; 1490 1491 FDKfetchBuffer(&tmpConf, confBuffer, size); 1492 1493 if (err != 0) 1494 return AAC_ENC_UNKNOWN; 1495 else 1496 return AAC_ENC_OK; 1497 } 1498 1499 1500 AACENC_ERROR aacEncGetLibInfo(LIB_INFO *info) 1501 { 1502 int i = 0; 1503 1504 if (info == NULL) { 1505 return AACENC_INVALID_HANDLE; 1506 } 1507 1508 FDK_toolsGetLibInfo( info ); 1509 transportEnc_GetLibInfo( info ); 1510 1511 sbrEncoder_GetLibInfo( info ); 1512 1513 /* search for next free tab */ 1514 for (i = 0; i < FDK_MODULE_LAST; i++) { 1515 if (info[i].module_id == FDK_NONE) break; 1516 } 1517 if (i == FDK_MODULE_LAST) { 1518 return AACENC_INIT_ERROR; 1519 } 1520 1521 info[i].module_id = FDK_AACENC; 1522 info[i].build_date = (char*)AACENCODER_LIB_BUILD_DATE; 1523 info[i].build_time = (char*)AACENCODER_LIB_BUILD_TIME; 1524 info[i].title = (char*)AACENCODER_LIB_TITLE; 1525 info[i].version = LIB_VERSION(AACENCODER_LIB_VL0, AACENCODER_LIB_VL1, AACENCODER_LIB_VL2);; 1526 LIB_VERSION_STRING(&info[i]); 1527 1528 /* Capability flags */ 1529 info[i].flags = 0 1530 | CAPF_AAC_1024 | CAPF_AAC_LC 1531 | CAPF_AAC_512 1532 | CAPF_AAC_480 1533 | CAPF_AAC_DRC 1534 ; 1535 /* End of flags */ 1536 1537 return AACENC_OK; 1538 } 1539 1540 AACENC_ERROR aacEncoder_SetParam( 1541 const HANDLE_AACENCODER hAacEncoder, 1542 const AACENC_PARAM param, 1543 const UINT value 1544 ) 1545 { 1546 AACENC_ERROR err = AACENC_OK; 1547 USER_PARAM *settings = &hAacEncoder->extParam; 1548 1549 /* check encoder handle */ 1550 if (hAacEncoder == NULL) { 1551 err = AACENC_INVALID_HANDLE; 1552 goto bail; 1553 } 1554 1555 /* apply param value */ 1556 switch (param) 1557 { 1558 case AACENC_AOT: 1559 if (settings->userAOT != (AUDIO_OBJECT_TYPE)value) { 1560 /* check if AOT matches the allocated modules */ 1561 switch ( value ) { 1562 case AOT_PS: 1563 case AOT_MP2_PS: 1564 if (!(hAacEncoder->encoder_modis & (ENC_MODE_FLAG_PS))) { 1565 err = AACENC_INVALID_CONFIG; 1566 goto bail; 1567 } 1568 case AOT_SBR: 1569 case AOT_MP2_SBR: 1570 if (!(hAacEncoder->encoder_modis & (ENC_MODE_FLAG_SBR))) { 1571 err = AACENC_INVALID_CONFIG; 1572 goto bail; 1573 } 1574 case AOT_AAC_LC: 1575 case AOT_MP2_AAC_LC: 1576 case AOT_ER_AAC_LC: 1577 case AOT_ER_AAC_LD: 1578 case AOT_ER_AAC_ELD: 1579 if (!(hAacEncoder->encoder_modis & (ENC_MODE_FLAG_AAC))) { 1580 err = AACENC_INVALID_CONFIG; 1581 goto bail; 1582 } 1583 break; 1584 default: 1585 err = AACENC_INVALID_CONFIG; 1586 goto bail; 1587 }/* switch value */ 1588 settings->userAOT = (AUDIO_OBJECT_TYPE)value; 1589 hAacEncoder->InitFlags |= AACENC_INIT_CONFIG | AACENC_INIT_STATES | AACENC_INIT_TRANSPORT; 1590 } 1591 break; 1592 case AACENC_BITRATE: 1593 if (settings->userBitrate != value) { 1594 settings->userBitrate = value; 1595 hAacEncoder->InitFlags |= AACENC_INIT_CONFIG | AACENC_INIT_TRANSPORT; 1596 } 1597 break; 1598 case AACENC_BITRATEMODE: 1599 if (settings->userBitrateMode != value) { 1600 switch ( value ) { 1601 case 0: 1602 case 8: 1603 settings->userBitrateMode = value; 1604 hAacEncoder->InitFlags |= AACENC_INIT_CONFIG | AACENC_INIT_TRANSPORT; 1605 break; 1606 default: 1607 err = AACENC_INVALID_CONFIG; 1608 break; 1609 } /* switch value */ 1610 } 1611 break; 1612 case AACENC_SAMPLERATE: 1613 if (settings->userSamplerate != value) { 1614 if ( !( (value==8000) || (value==11025) || (value==12000) || (value==16000) || (value==22050) || (value==24000) || 1615 (value==32000) || (value==44100) || (value==48000) || (value==64000) || (value==88200) || (value==96000) ) ) 1616 { 1617 err = AACENC_INVALID_CONFIG; 1618 break; 1619 } 1620 settings->userSamplerate = value; 1621 hAacEncoder->nSamplesRead = 0; /* reset internal inputbuffer */ 1622 hAacEncoder->InitFlags |= AACENC_INIT_CONFIG | AACENC_INIT_STATES | AACENC_INIT_TRANSPORT; 1623 } 1624 break; 1625 case AACENC_CHANNELMODE: 1626 if (settings->userChannelMode != (CHANNEL_MODE)value) { 1627 const CHANNEL_MODE_CONFIG_TAB* pConfig = FDKaacEnc_GetChannelModeConfiguration((CHANNEL_MODE)value); 1628 if (pConfig==NULL) { 1629 err = AACENC_INVALID_CONFIG; 1630 break; 1631 } 1632 if ( (pConfig->nElements > hAacEncoder->nMaxAacElements) 1633 || (pConfig->nChannelsEff > hAacEncoder->nMaxAacChannels) 1634 || !((value>=1) && (value<=6)) 1635 ) 1636 { 1637 err = AACENC_INVALID_CONFIG; 1638 break; 1639 } 1640 1641 settings->userChannelMode = (CHANNEL_MODE)value; 1642 settings->nChannels = pConfig->nChannels; 1643 hAacEncoder->nSamplesRead = 0; /* reset internal inputbuffer */ 1644 hAacEncoder->InitFlags |= AACENC_INIT_CONFIG | AACENC_INIT_TRANSPORT; 1645 } 1646 break; 1647 case AACENC_BANDWIDTH: 1648 if (settings->userBandwidth != value) { 1649 settings->userBandwidth = value; 1650 hAacEncoder->InitFlags |= AACENC_INIT_CONFIG; 1651 } 1652 break; 1653 case AACENC_CHANNELORDER: 1654 if (hAacEncoder->aacConfig.channelOrder != (CHANNEL_ORDER)value) { 1655 if (! ((value==0) || (value==1)) ) { 1656 err = AACENC_INVALID_CONFIG; 1657 break; 1658 } 1659 hAacEncoder->aacConfig.channelOrder = (CHANNEL_ORDER)value; 1660 hAacEncoder->nSamplesRead = 0; /* reset internal inputbuffer */ 1661 hAacEncoder->InitFlags |= AACENC_INIT_CONFIG | AACENC_INIT_STATES | AACENC_INIT_TRANSPORT; 1662 } 1663 break; 1664 case AACENC_AFTERBURNER: 1665 if (settings->userAfterburner != value) { 1666 if (! ((value==0) || (value==1)) ) { 1667 err = AACENC_INVALID_CONFIG; 1668 break; 1669 } 1670 settings->userAfterburner = value; 1671 hAacEncoder->InitFlags |= AACENC_INIT_CONFIG; 1672 } 1673 break; 1674 case AACENC_GRANULE_LENGTH: 1675 if (settings->userFramelength != value) { 1676 switch (value) { 1677 case 1024: 1678 case 512: 1679 case 480: 1680 settings->userFramelength = value; 1681 hAacEncoder->InitFlags |= AACENC_INIT_CONFIG | AACENC_INIT_TRANSPORT; 1682 break; 1683 default: 1684 err = AACENC_INVALID_CONFIG; 1685 break; 1686 } 1687 } 1688 break; 1689 case AACENC_SBR_MODE: 1690 if (settings->userSbrEnabled != value) { 1691 settings->userSbrEnabled = value; 1692 hAacEncoder->InitFlags |= AACENC_INIT_CONFIG | AACENC_INIT_STATES | AACENC_INIT_TRANSPORT; 1693 } 1694 break; 1695 case AACENC_TRANSMUX: 1696 if (settings->userTpType != (TRANSPORT_TYPE)value) { 1697 1698 TRANSPORT_TYPE type = (TRANSPORT_TYPE)value; 1699 UINT flags = hAacEncoder->CAPF_tpEnc; 1700 1701 if ( !( ((type==TT_MP4_ADIF) && (flags&CAPF_ADIF)) 1702 || ((type==TT_MP4_ADTS) && (flags&CAPF_ADTS)) 1703 || ((type==TT_MP4_LATM_MCP0) && ((flags&CAPF_LATM) && (flags&CAPF_RAWPACKETS))) 1704 || ((type==TT_MP4_LATM_MCP1) && ((flags&CAPF_LATM) && (flags&CAPF_RAWPACKETS))) 1705 || ((type==TT_MP4_LOAS) && (flags&CAPF_LOAS)) 1706 || ((type==TT_MP4_RAW) && (flags&CAPF_RAWPACKETS)) 1707 ) ) 1708 { 1709 err = AACENC_INVALID_CONFIG; 1710 break; 1711 } 1712 settings->userTpType = (TRANSPORT_TYPE)value; 1713 hAacEncoder->InitFlags |= AACENC_INIT_TRANSPORT; 1714 } 1715 break; 1716 case AACENC_SIGNALING_MODE: 1717 if (settings->userTpSignaling != value) { 1718 if ( !((value==0) || (value==1) || (value==2)) ) { 1719 err = AACENC_INVALID_CONFIG; 1720 break; 1721 } 1722 settings->userTpSignaling = value; 1723 hAacEncoder->InitFlags |= AACENC_INIT_TRANSPORT; 1724 } 1725 break; 1726 case AACENC_PROTECTION: 1727 if (settings->userTpProtection != value) { 1728 if ( !((value==0) || (value==1)) ) { 1729 err = AACENC_INVALID_CONFIG; 1730 break; 1731 } 1732 settings->userTpProtection = value; 1733 hAacEncoder->InitFlags |= AACENC_INIT_TRANSPORT; 1734 } 1735 break; 1736 case AACENC_HEADER_PERIOD: 1737 if (settings->userTpHeaderPeriod != value) { 1738 settings->userTpHeaderPeriod = value; 1739 hAacEncoder->InitFlags |= AACENC_INIT_TRANSPORT; 1740 } 1741 break; 1742 case AACENC_TPSUBFRAMES: 1743 if (settings->userTpNsubFrames != value) { 1744 if (! ( (value>=1) && (value<=4) ) ) { 1745 err = AACENC_INVALID_CONFIG; 1746 break; 1747 } 1748 settings->userTpNsubFrames = value; 1749 hAacEncoder->InitFlags |= AACENC_INIT_TRANSPORT; 1750 } 1751 break; 1752 case AACENC_ANCILLARY_BITRATE: 1753 if (settings->userAncDataRate != value) { 1754 settings->userAncDataRate = value; 1755 } 1756 break; 1757 case AACENC_CONTROL_STATE: 1758 if (hAacEncoder->InitFlags != value) { 1759 if (value&AACENC_RESET_INBUFFER) { 1760 hAacEncoder->nSamplesRead = 0; 1761 } 1762 hAacEncoder->InitFlags = value; 1763 } 1764 break; 1765 case AACENC_METADATA_MODE: 1766 if ((UINT)settings->userMetaDataMode != value) { 1767 if ( !((value>=0) && (value<=2)) ) { 1768 err = AACENC_INVALID_CONFIG; 1769 break; 1770 } 1771 settings->userMetaDataMode = value; 1772 hAacEncoder->InitFlags |= AACENC_INIT_CONFIG; 1773 } 1774 break; 1775 default: 1776 err = AACENC_UNSUPPORTED_PARAMETER; 1777 break; 1778 } /* switch(param) */ 1779 1780 bail: 1781 return err; 1782 } 1783 1784 UINT aacEncoder_GetParam( 1785 const HANDLE_AACENCODER hAacEncoder, 1786 const AACENC_PARAM param 1787 ) 1788 { 1789 UINT value = 0; 1790 USER_PARAM *settings = &hAacEncoder->extParam; 1791 1792 /* check encoder handle */ 1793 if (hAacEncoder == NULL) { 1794 goto bail; 1795 } 1796 1797 /* apply param value */ 1798 switch (param) 1799 { 1800 case AACENC_AOT: 1801 value = (UINT)hAacEncoder->aacConfig.audioObjectType; 1802 break; 1803 case AACENC_BITRATE: 1804 value = (UINT)((hAacEncoder->aacConfig.bitrateMode==AACENC_BR_MODE_CBR) ? hAacEncoder->aacConfig.bitRate : -1); 1805 break; 1806 case AACENC_BITRATEMODE: 1807 value = (UINT)hAacEncoder->aacConfig.bitrateMode; 1808 break; 1809 case AACENC_SAMPLERATE: 1810 value = (UINT)settings->userSamplerate; 1811 break; 1812 case AACENC_CHANNELMODE: 1813 value = (UINT)hAacEncoder->aacConfig.channelMode; 1814 break; 1815 case AACENC_BANDWIDTH: 1816 value = (UINT)hAacEncoder->aacConfig.bandWidth; 1817 break; 1818 case AACENC_CHANNELORDER: 1819 value = (UINT)hAacEncoder->aacConfig.channelOrder; 1820 break; 1821 case AACENC_AFTERBURNER: 1822 value = (UINT)hAacEncoder->aacConfig.useRequant; 1823 break; 1824 case AACENC_GRANULE_LENGTH: 1825 value = (UINT)hAacEncoder->aacConfig.framelength; 1826 break; 1827 case AACENC_SBR_MODE: 1828 value = (UINT) (hAacEncoder->aacConfig.syntaxFlags & AC_SBR_PRESENT) ? 1 : 0; 1829 break; 1830 case AACENC_TRANSMUX: 1831 value = (UINT)settings->userTpType; 1832 break; 1833 case AACENC_SIGNALING_MODE: 1834 value = (UINT)settings->userTpSignaling; 1835 break; 1836 case AACENC_PROTECTION: 1837 value = (UINT)settings->userTpProtection; 1838 break; 1839 case AACENC_HEADER_PERIOD: 1840 value = (UINT)hAacEncoder->coderConfig.headerPeriod; 1841 break; 1842 case AACENC_TPSUBFRAMES: 1843 value = (UINT)settings->userTpNsubFrames; 1844 break; 1845 case AACENC_ANCILLARY_BITRATE: 1846 value = (UINT)hAacEncoder->aacConfig.anc_Rate; 1847 break; 1848 case AACENC_CONTROL_STATE: 1849 value = (UINT)hAacEncoder->InitFlags; 1850 break; 1851 case AACENC_METADATA_MODE: 1852 value = (hAacEncoder->metaDataAllowed==0) ? 0 : (UINT)settings->userMetaDataMode; 1853 break; 1854 default: 1855 //err = MPS_INVALID_PARAMETER; 1856 break; 1857 } /* switch(param) */ 1858 1859 bail: 1860 return value; 1861 } 1862 1863 AACENC_ERROR aacEncInfo( 1864 const HANDLE_AACENCODER hAacEncoder, 1865 AACENC_InfoStruct *pInfo 1866 ) 1867 { 1868 AACENC_ERROR err = AACENC_OK; 1869 1870 FDKmemclear(pInfo, sizeof(AACENC_InfoStruct)); 1871 pInfo->confSize = 64; /* pre-initialize */ 1872 1873 pInfo->maxOutBufBytes = ((hAacEncoder->nMaxAacChannels*6144)+7)>>3; 1874 pInfo->maxAncBytes = hAacEncoder->aacConfig.maxAncBytesPerAU; 1875 pInfo->inBufFillLevel = hAacEncoder->nSamplesRead/hAacEncoder->extParam.nChannels; 1876 pInfo->inputChannels = hAacEncoder->extParam.nChannels; 1877 pInfo->frameLength = hAacEncoder->nSamplesToRead/hAacEncoder->extParam.nChannels; 1878 pInfo->encoderDelay = hAacEncoder->nDelay/hAacEncoder->extParam.nChannels; 1879 1880 /* Get encoder configuration */ 1881 if ( aacEncGetConf(hAacEncoder, &pInfo->confSize, &pInfo->confBuf[0]) != AAC_ENC_OK) { 1882 err = AACENC_INIT_ERROR; 1883 goto bail; 1884 } 1885 bail: 1886 return err; 1887 } 1888 1889
