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Diffstat (limited to 'fdk-aac/libAACenc/src/aacenc_lib.cpp')
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diff --git a/fdk-aac/libAACenc/src/aacenc_lib.cpp b/fdk-aac/libAACenc/src/aacenc_lib.cpp new file mode 100644 index 0000000..aaa6c74 --- /dev/null +++ b/fdk-aac/libAACenc/src/aacenc_lib.cpp @@ -0,0 +1,2575 @@ +/* ----------------------------------------------------------------------------- +Software License for The Fraunhofer FDK AAC Codec Library for Android + +© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten +Forschung e.V. All rights reserved. + + 1. INTRODUCTION +The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software +that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding +scheme for digital audio. This FDK AAC Codec software is intended to be used on +a wide variety of Android devices. + +AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient +general perceptual audio codecs. AAC-ELD is considered the best-performing +full-bandwidth communications codec by independent studies and is widely +deployed. AAC has been standardized by ISO and IEC as part of the MPEG +specifications. + +Patent licenses for necessary patent claims for the FDK AAC Codec (including +those of Fraunhofer) may be obtained through Via Licensing +(www.vialicensing.com) or through the respective patent owners individually for +the purpose of encoding or decoding bit streams in products that are compliant +with the ISO/IEC MPEG audio standards. Please note that most manufacturers of +Android devices already license these patent claims through Via Licensing or +directly from the patent owners, and therefore FDK AAC Codec software may +already be covered under those patent licenses when it is used for those +licensed purposes only. + +Commercially-licensed AAC software libraries, including floating-point versions +with enhanced sound quality, are also available from Fraunhofer. Users are +encouraged to check the Fraunhofer website for additional applications +information and documentation. + +2. COPYRIGHT LICENSE + +Redistribution and use in source and binary forms, with or without modification, +are permitted without payment of copyright license fees provided that you +satisfy the following conditions: + +You must retain the complete text of this software license in redistributions of +the FDK AAC Codec or your modifications thereto in source code form. + +You must retain the complete text of this software license in the documentation +and/or other materials provided with redistributions of the FDK AAC Codec or +your modifications thereto in binary form. You must make available free of +charge copies of the complete source code of the FDK AAC Codec and your +modifications thereto to recipients of copies in binary form. + +The name of Fraunhofer may not be used to endorse or promote products derived +from this library without prior written permission. + +You may not charge copyright license fees for anyone to use, copy or distribute +the FDK AAC Codec software or your modifications thereto. + +Your modified versions of the FDK AAC Codec must carry prominent notices stating +that you changed the software and the date of any change. For modified versions +of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android" +must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK +AAC Codec Library for Android." + +3. NO PATENT LICENSE + +NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without +limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE. +Fraunhofer provides no warranty of patent non-infringement with respect to this +software. + +You may use this FDK AAC Codec software or modifications thereto only for +purposes that are authorized by appropriate patent licenses. + +4. DISCLAIMER + +This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright +holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, +including but not limited to the implied warranties of merchantability and +fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR +CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, +or consequential damages, including but not limited to procurement of substitute +goods or services; loss of use, data, or profits, or business interruption, +however caused and on any theory of liability, whether in contract, strict +liability, or tort (including negligence), arising in any way out of the use of +this software, even if advised of the possibility of such damage. + +5. CONTACT INFORMATION + +Fraunhofer Institute for Integrated Circuits IIS +Attention: Audio and Multimedia Departments - FDK AAC LL +Am Wolfsmantel 33 +91058 Erlangen, Germany + +www.iis.fraunhofer.de/amm +amm-info@iis.fraunhofer.de +----------------------------------------------------------------------------- */ + +/**************************** AAC encoder library ****************************** + + Author(s): M. Lohwasser + + Description: FDK HE-AAC Encoder interface library functions + +*******************************************************************************/ +#include <stdio.h> +#include "aacenc_lib.h" +#include "FDK_audio.h" +#include "aacenc.h" + +#include "aacEnc_ram.h" +#include "FDK_core.h" /* FDK_tools versioning info */ + +/* Encoder library info */ +#define AACENCODER_LIB_VL0 4 +#define AACENCODER_LIB_VL1 0 +#define AACENCODER_LIB_VL2 0 +#define AACENCODER_LIB_TITLE "AAC Encoder" +#ifdef __ANDROID__ +#define AACENCODER_LIB_BUILD_DATE "" +#define AACENCODER_LIB_BUILD_TIME "" +#else +#define AACENCODER_LIB_BUILD_DATE __DATE__ +#define AACENCODER_LIB_BUILD_TIME __TIME__ +#endif + +#include "pcm_utils.h" + +#include "sbr_encoder.h" +#include "../src/sbrenc_ram.h" +#include "channel_map.h" + +#include "psy_const.h" +#include "bitenc.h" + +#include "tpenc_lib.h" + +#include "metadata_main.h" +#include "mps_main.h" +#include "sacenc_lib.h" + +#define SBL(fl) \ + (fl / \ + 8) /*!< Short block length (hardcoded to 8 short blocks per long block) */ +#define BSLA(fl) \ + (4 * SBL(fl) + SBL(fl) / 2) /*!< AAC block switching look-ahead */ +#define DELAY_AAC(fl) (fl + BSLA(fl)) /*!< MDCT + blockswitching */ +#define DELAY_AACLD(fl) (fl) /*!< MDCT delay (no framing delay included) */ +#define DELAY_AACELD(fl) \ + ((fl) / 2) /*!< ELD FB delay (no framing delay included) */ + +#define MAX_DS_DELAY (100) /*!< Maximum downsampler delay in SBR. */ +#define INPUTBUFFER_SIZE \ + (2 * (1024) + MAX_DS_DELAY + 1537) /*!< Audio input samples + downsampler \ + delay + sbr/aac delay compensation */ + +#define DEFAULT_HEADER_PERIOD_REPETITION_RATE \ + 10 /*!< Default header repetition rate used in transport library and for SBR \ + header. */ + +//////////////////////////////////////////////////////////////////////////////////// +/** + * Flags to characterize encoder modules to be supported in present instance. + */ +enum { + ENC_MODE_FLAG_AAC = 0x0001, + ENC_MODE_FLAG_SBR = 0x0002, + ENC_MODE_FLAG_PS = 0x0004, + ENC_MODE_FLAG_SAC = 0x0008, + ENC_MODE_FLAG_META = 0x0010 +}; + +//////////////////////////////////////////////////////////////////////////////////// +typedef struct { + AUDIO_OBJECT_TYPE userAOT; /*!< Audio Object Type. */ + UINT userSamplerate; /*!< Sampling frequency. */ + UINT nChannels; /*!< will be set via channelMode. */ + CHANNEL_MODE userChannelMode; + UINT userBitrate; + UINT userBitrateMode; + UINT userBandwidth; + UINT userAfterburner; + UINT userFramelength; + UINT userAncDataRate; + UINT userPeakBitrate; + + UCHAR userTns; /*!< Use TNS coding. */ + UCHAR userPns; /*!< Use PNS coding. */ + UCHAR userIntensity; /*!< Use Intensity coding. */ + + TRANSPORT_TYPE userTpType; /*!< Transport type */ + UCHAR userTpSignaling; /*!< Extension AOT signaling mode. */ + UCHAR userTpNsubFrames; /*!< Number of sub frames in a transport frame for + LOAS/LATM or ADTS (default 1). */ + UCHAR userTpAmxv; /*!< AudioMuxVersion to be used for LATM (default 0). */ + UCHAR userTpProtection; + UCHAR userTpHeaderPeriod; /*!< Parameter used to configure LATM/LOAS SMC rate. + Moreover this parameters is used to configure + repetition rate of PCE in raw_data_block. */ + + UCHAR userErTools; /*!< Use VCB11, HCR and/or RVLC ER tool. */ + UINT userPceAdditions; /*!< Configure additional bits in PCE. */ + + UCHAR userMetaDataMode; /*!< Meta data library configuration. */ + + UCHAR userSbrEnabled; /*!< Enable SBR for ELD. */ + UINT userSbrRatio; /*!< SBR sampling rate ratio. Dual- or single-rate. */ + + UINT userDownscaleFactor; + +} USER_PARAM; + +/** + * SBR extenxion payload struct provides buffers to be filled in SBR encoder + * library. + */ +typedef struct { + UCHAR data[(1)][(8)][MAX_PAYLOAD_SIZE]; /*!< extension payload data buffer */ + UINT dataSize[(1)][(8)]; /*!< extension payload data size in bits */ +} SBRENC_EXT_PAYLOAD; + +//////////////////////////////////////////////////////////////////////////////////// + +/**************************************************************************** + Structure Definitions +****************************************************************************/ + +typedef struct AACENC_CONFIG *HANDLE_AACENC_CONFIG; + +struct AACENCODER { + USER_PARAM extParam; + CODER_CONFIG coderConfig; + + /* AAC */ + AACENC_CONFIG aacConfig; + HANDLE_AAC_ENC hAacEnc; + + /* SBR */ + HANDLE_SBR_ENCODER hEnvEnc; /* SBR encoder */ + SBRENC_EXT_PAYLOAD *pSbrPayload; /* SBR extension payload */ + + /* Meta Data */ + HANDLE_FDK_METADATA_ENCODER hMetadataEnc; + INT metaDataAllowed; /* Signal whether chosen configuration allows metadata. + Necessary for delay compensation. Metadata mode is a + separate parameter. */ + + HANDLE_MPS_ENCODER hMpsEnc; + + /* Transport */ + HANDLE_TRANSPORTENC hTpEnc; + + INT_PCM + *inputBuffer; /* Internal input buffer. Input source for AAC encoder */ + UCHAR *outBuffer; /* Internal bitstream buffer */ + + INT inputBufferSize; /* Size of internal input buffer */ + INT inputBufferSizePerChannel; /* Size of internal input buffer per channel */ + INT outBufferInBytes; /* Size of internal bitstream buffer*/ + + INT inputBufferOffset; /* Where to write new input samples. */ + + INT nSamplesToRead; /* number of input samples neeeded for encoding one frame + */ + INT nSamplesRead; /* number of input samples already in input buffer */ + INT nZerosAppended; /* appended zeros at end of file*/ + INT nDelay; /* codec delay */ + INT nDelayCore; /* codec delay, w/o the SBR decoder delay */ + + AACENC_EXT_PAYLOAD extPayload[MAX_TOTAL_EXT_PAYLOADS]; + + ULONG InitFlags; /* internal status to treggier re-initialization */ + + /* Memory allocation info. */ + INT nMaxAacElements; + INT nMaxAacChannels; + INT nMaxSbrElements; + INT nMaxSbrChannels; + + UINT encoder_modis; + + /* Capability flags */ + UINT CAPF_tpEnc; +}; + +typedef struct { + /* input */ + ULONG nChannels; /*!< Number of audio channels. */ + ULONG samplingRate; /*!< Encoder output sampling rate. */ + ULONG bitrateRange; /*!< Lower bitrate range for config entry. */ + + /* output*/ + UCHAR sbrMode; /*!< 0: ELD sbr off, + 1: ELD with downsampled sbr, + 2: ELD with dualrate sbr. */ + CHANNEL_MODE chMode; /*!< Channel mode. */ + +} ELD_SBR_CONFIGURATOR; + +/** + * \brief This table defines ELD/SBR default configurations. + */ +static const ELD_SBR_CONFIGURATOR eldSbrAutoConfigTab[] = { + {1, 48000, 0, 2, MODE_1}, {1, 48000, 64000, 0, MODE_1}, + + {1, 44100, 0, 2, MODE_1}, {1, 44100, 64000, 0, MODE_1}, + + {1, 32000, 0, 2, MODE_1}, {1, 32000, 28000, 1, MODE_1}, + {1, 32000, 56000, 0, MODE_1}, + + {1, 24000, 0, 1, MODE_1}, {1, 24000, 40000, 0, MODE_1}, + + {1, 16000, 0, 1, MODE_1}, {1, 16000, 28000, 0, MODE_1}, + + {1, 15999, 0, 0, MODE_1}, + + {2, 48000, 0, 2, MODE_2}, {2, 48000, 44000, 2, MODE_2}, + {2, 48000, 128000, 0, MODE_2}, + + {2, 44100, 0, 2, MODE_2}, {2, 44100, 44000, 2, MODE_2}, + {2, 44100, 128000, 0, MODE_2}, + + {2, 32000, 0, 2, MODE_2}, {2, 32000, 32000, 2, MODE_2}, + {2, 32000, 68000, 1, MODE_2}, {2, 32000, 96000, 0, MODE_2}, + + {2, 24000, 0, 1, MODE_2}, {2, 24000, 48000, 1, MODE_2}, + {2, 24000, 80000, 0, MODE_2}, + + {2, 16000, 0, 1, MODE_2}, {2, 16000, 32000, 1, MODE_2}, + {2, 16000, 64000, 0, MODE_2}, + + {2, 15999, 0, 0, MODE_2} + +}; + +/* + * \brief Configure SBR for ELD configuration. + * + * This function finds default SBR configuration for ELD based on number of + * channels, sampling rate and bitrate. + * + * \param nChannels Number of audio channels. + * \param samplingRate Audio signal sampling rate. + * \param bitrate Encoder bitrate. + * + * \return - pointer to eld sbr configuration. + * - NULL, on failure. + */ +static const ELD_SBR_CONFIGURATOR *eldSbrConfigurator(const ULONG nChannels, + const ULONG samplingRate, + const ULONG bitrate) { + int i; + const ELD_SBR_CONFIGURATOR *pSetup = NULL; + + for (i = 0; + i < (int)(sizeof(eldSbrAutoConfigTab) / sizeof(ELD_SBR_CONFIGURATOR)); + i++) { + if ((nChannels == eldSbrAutoConfigTab[i].nChannels) && + (samplingRate <= eldSbrAutoConfigTab[i].samplingRate) && + (bitrate >= eldSbrAutoConfigTab[i].bitrateRange)) { + pSetup = &eldSbrAutoConfigTab[i]; + } + } + + return pSetup; +} + +static inline INT isSbrActive(const HANDLE_AACENC_CONFIG hAacConfig) { + INT sbrUsed = 0; + + /* Note: Even if implicit signalling was selected, The AOT itself here is not + * AOT_AAC_LC */ + if ((hAacConfig->audioObjectType == AOT_SBR) || + (hAacConfig->audioObjectType == AOT_PS) || + (hAacConfig->audioObjectType == AOT_MP2_SBR) || + (hAacConfig->audioObjectType == AOT_DABPLUS_SBR) || + (hAacConfig->audioObjectType == AOT_DABPLUS_PS)) { + sbrUsed = 1; + } + if (hAacConfig->audioObjectType == AOT_ER_AAC_ELD && + (hAacConfig->syntaxFlags & AC_SBR_PRESENT)) { + sbrUsed = 1; + } + + return (sbrUsed); +} + +static inline INT isPsActive(const AUDIO_OBJECT_TYPE audioObjectType) { + INT psUsed = 0; + + if ((audioObjectType == AOT_PS) || + (audioObjectType == AOT_DABPLUS_PS)) { + psUsed = 1; + } + + return (psUsed); +} + +static CHANNEL_MODE GetCoreChannelMode( + const CHANNEL_MODE channelMode, const AUDIO_OBJECT_TYPE audioObjectType) { + CHANNEL_MODE mappedChannelMode = channelMode; + if ((isPsActive(audioObjectType) && (channelMode == MODE_2)) || + (channelMode == MODE_212)) { + mappedChannelMode = MODE_1; + } + return mappedChannelMode; +} + +static SBR_PS_SIGNALING getSbrSignalingMode( + const AUDIO_OBJECT_TYPE audioObjectType, const TRANSPORT_TYPE transportType, + const UCHAR transportSignaling, const UINT sbrRatio) + +{ + SBR_PS_SIGNALING sbrSignaling; + + if (transportType == TT_UNKNOWN || sbrRatio == 0) { + sbrSignaling = SIG_UNKNOWN; /* Needed parameters have not been set */ + return sbrSignaling; + } else { + sbrSignaling = + SIG_EXPLICIT_HIERARCHICAL; /* default: explicit hierarchical signaling + */ + } + + if ((audioObjectType == AOT_AAC_LC) || (audioObjectType == AOT_SBR) || + (audioObjectType == AOT_PS) || (audioObjectType == AOT_MP2_AAC_LC) || + (audioObjectType == AOT_MP2_SBR) || + (audioObjectType == AOT_DABPLUS_SBR) || + (audioObjectType == AOT_DABPLUS_PS)) { + switch (transportType) { + case TT_MP4_ADIF: + case TT_MP4_ADTS: + sbrSignaling = SIG_IMPLICIT; /* For MPEG-2 transport types, only + implicit signaling is possible */ + break; + + case TT_MP4_RAW: + case TT_MP4_LATM_MCP1: + case TT_MP4_LATM_MCP0: + case TT_MP4_LOAS: + default: + if (transportSignaling == 0xFF) { + /* Defaults */ + sbrSignaling = SIG_EXPLICIT_HIERARCHICAL; + } else { + /* User set parameters */ + /* Attention: Backward compatible explicit signaling does only work + * with AMV1 for LATM/LOAS */ + sbrSignaling = (SBR_PS_SIGNALING)transportSignaling; + } + break; + } + } + + return sbrSignaling; +} + +/**************************************************************************** + Allocate Encoder +****************************************************************************/ + +H_ALLOC_MEM(_AacEncoder, AACENCODER) +C_ALLOC_MEM(_AacEncoder, struct AACENCODER, 1) + +/* + * Map Encoder specific config structures to CODER_CONFIG. + */ +static void FDKaacEnc_MapConfig(CODER_CONFIG *const cc, + const USER_PARAM *const extCfg, + const SBR_PS_SIGNALING sbrSignaling, + const HANDLE_AACENC_CONFIG hAacConfig) { + AUDIO_OBJECT_TYPE transport_AOT = AOT_NULL_OBJECT; + FDKmemclear(cc, sizeof(CODER_CONFIG)); + + cc->flags = 0; + + cc->samplesPerFrame = hAacConfig->framelength; + cc->samplingRate = hAacConfig->sampleRate; + cc->extSamplingRate = extCfg->userSamplerate; + + /* Map virtual aot to transport aot. */ + switch (hAacConfig->audioObjectType) { + case AOT_MP2_AAC_LC: + case AOT_DABPLUS_AAC_LC: + transport_AOT = AOT_AAC_LC; + break; + case AOT_MP2_SBR: + case AOT_DABPLUS_SBR: + transport_AOT = AOT_SBR; + cc->flags |= CC_SBR; + break; + case AOT_DABPLUS_PS: + transport_AOT = AOT_PS; + cc->flags |= CC_SBR; + break; + default: + transport_AOT = hAacConfig->audioObjectType; + } + + if (hAacConfig->audioObjectType == AOT_ER_AAC_ELD) { + cc->flags |= (hAacConfig->syntaxFlags & AC_SBR_PRESENT) ? CC_SBR : 0; + cc->flags |= (hAacConfig->syntaxFlags & AC_LD_MPS) ? CC_SAC : 0; + } + + /* transport type is usually AAC-LC. */ + if ((transport_AOT == AOT_SBR) || (transport_AOT == AOT_PS)) { + cc->aot = AOT_AAC_LC; + } else { + cc->aot = transport_AOT; + } + + /* Configure extension aot. */ + if (sbrSignaling == SIG_IMPLICIT) { + cc->extAOT = AOT_NULL_OBJECT; /* implicit */ + } else { + if ((sbrSignaling == SIG_EXPLICIT_BW_COMPATIBLE) && + ((transport_AOT == AOT_SBR) || (transport_AOT == AOT_PS))) { + cc->extAOT = AOT_SBR; /* explicit backward compatible */ + } else { + cc->extAOT = transport_AOT; /* explicit hierarchical */ + } + } + + if ((transport_AOT == AOT_SBR) || (transport_AOT == AOT_PS)) { + cc->sbrPresent = 1; + if (transport_AOT == AOT_PS) { + cc->psPresent = 1; + } + } + cc->sbrSignaling = sbrSignaling; + + if (hAacConfig->downscaleFactor > 1) { + cc->downscaleSamplingRate = cc->samplingRate; + cc->samplingRate *= hAacConfig->downscaleFactor; + cc->extSamplingRate *= hAacConfig->downscaleFactor; + } + + cc->bitRate = hAacConfig->bitRate; + cc->noChannels = hAacConfig->nChannels; + cc->flags |= CC_IS_BASELAYER; + cc->channelMode = hAacConfig->channelMode; + +if (extCfg->userTpType == TT_DABPLUS && hAacConfig->nSubFrames==1) { + switch(hAacConfig->sampleRate) { + case 48000: + cc->nSubFrames=6; + break; + case 32000: + cc->nSubFrames=4; + break; + case 24000: + cc->nSubFrames=3; + break; + case 16000: + cc->nSubFrames=2; + break; + } + //fprintf(stderr, "hAacConfig->nSubFrames=%d hAacConfig->sampleRate=%d\n", hAacConfig->nSubFrames, hAacConfig->sampleRate); + } else { + cc->nSubFrames = (hAacConfig->nSubFrames > 1 && extCfg->userTpNsubFrames == 1) + ? hAacConfig->nSubFrames + : extCfg->userTpNsubFrames; + } + + cc->flags |= (extCfg->userTpProtection) ? CC_PROTECTION : 0; + + if (extCfg->userTpHeaderPeriod != 0xFF) { + cc->headerPeriod = extCfg->userTpHeaderPeriod; + } else { /* auto-mode */ + switch (extCfg->userTpType) { + case TT_MP4_ADTS: + case TT_MP4_LOAS: + case TT_MP4_LATM_MCP1: + cc->headerPeriod = DEFAULT_HEADER_PERIOD_REPETITION_RATE; + break; + default: + cc->headerPeriod = 0; + } + } + + /* Mpeg-4 signaling for transport library. */ + switch (hAacConfig->audioObjectType) { + case AOT_MP2_AAC_LC: + case AOT_MP2_SBR: + cc->flags &= ~CC_MPEG_ID; /* Required for ADTS. */ + cc->extAOT = AOT_NULL_OBJECT; + break; + default: + cc->flags |= CC_MPEG_ID; + } + + /* ER-tools signaling. */ + cc->flags |= (hAacConfig->syntaxFlags & AC_ER_VCB11) ? CC_VCB11 : 0; + cc->flags |= (hAacConfig->syntaxFlags & AC_ER_HCR) ? CC_HCR : 0; + cc->flags |= (hAacConfig->syntaxFlags & AC_ER_RVLC) ? CC_RVLC : 0; + + /* Matrix mixdown coefficient configuration. */ + if ((extCfg->userPceAdditions & 0x1) && (hAacConfig->epConfig == -1) && + ((cc->channelMode == MODE_1_2_2) || (cc->channelMode == MODE_1_2_2_1))) { + cc->matrixMixdownA = ((extCfg->userPceAdditions >> 1) & 0x3) + 1; + cc->flags |= (extCfg->userPceAdditions >> 3) & 0x1 ? CC_PSEUDO_SURROUND : 0; + } else { + cc->matrixMixdownA = 0; + } + + cc->channelConfigZero = 0; +} + +/* + * Validate prefilled pointers within buffer descriptor. + * + * \param pBufDesc Pointer to buffer descriptor + + * \return - AACENC_OK, all fine. + * - AACENC_INVALID_HANDLE, on missing pointer initializiation. + * - AACENC_UNSUPPORTED_PARAMETER, on incorrect buffer descriptor + initialization. + */ +static AACENC_ERROR validateBufDesc(const AACENC_BufDesc *pBufDesc) { + AACENC_ERROR err = AACENC_OK; + + if (pBufDesc != NULL) { + int i; + if ((pBufDesc->bufferIdentifiers == NULL) || (pBufDesc->bufSizes == NULL) || + (pBufDesc->bufElSizes == NULL) || (pBufDesc->bufs == NULL)) { + err = AACENC_UNSUPPORTED_PARAMETER; + goto bail; + } + for (i = 0; i < pBufDesc->numBufs; i++) { + if (pBufDesc->bufs[i] == NULL) { + err = AACENC_UNSUPPORTED_PARAMETER; + goto bail; + } + } + } else { + err = AACENC_INVALID_HANDLE; + } +bail: + return err; +} + +/* + * Examine buffer descriptor regarding choosen identifier. + * + * \param pBufDesc Pointer to buffer descriptor + * \param identifier Buffer identifier to look for. + + * \return - Buffer descriptor index. + * -1, if there is no entry available. + */ +static INT getBufDescIdx(const AACENC_BufDesc *pBufDesc, + const AACENC_BufferIdentifier identifier) { + INT i, idx = -1; + + if (pBufDesc != NULL) { + for (i = 0; i < pBufDesc->numBufs; i++) { + if ((AACENC_BufferIdentifier)pBufDesc->bufferIdentifiers[i] == + identifier) { + idx = i; + break; + } + } + } + return idx; +} + +/**************************************************************************** + Function Declarations +****************************************************************************/ + +AAC_ENCODER_ERROR aacEncDefaultConfig(HANDLE_AACENC_CONFIG hAacConfig, + USER_PARAM *config) { + /* make reasonable default settings */ + FDKaacEnc_AacInitDefaultConfig(hAacConfig); + + /* clear configuration structure and copy default settings */ + FDKmemclear(config, sizeof(USER_PARAM)); + + /* copy encoder configuration settings */ + config->nChannels = hAacConfig->nChannels; + config->userAOT = hAacConfig->audioObjectType = AOT_AAC_LC; + config->userSamplerate = hAacConfig->sampleRate; + config->userChannelMode = hAacConfig->channelMode; + config->userBitrate = hAacConfig->bitRate; + config->userBitrateMode = hAacConfig->bitrateMode; + config->userPeakBitrate = (UINT)-1; + config->userBandwidth = hAacConfig->bandWidth; + config->userTns = hAacConfig->useTns; + config->userPns = hAacConfig->usePns; + config->userIntensity = hAacConfig->useIS; + config->userAfterburner = hAacConfig->useRequant; + config->userFramelength = (UINT)-1; + + config->userDownscaleFactor = 1; + + /* initialize transport parameters */ + config->userTpType = TT_UNKNOWN; + config->userTpAmxv = 0; + config->userTpSignaling = 0xFF; /* choose signaling automatically */ + config->userTpNsubFrames = 1; + config->userTpProtection = 0; /* not crc protected*/ + config->userTpHeaderPeriod = 0xFF; /* header period in auto mode */ + config->userPceAdditions = 0; /* no matrix mixdown coefficient */ + config->userMetaDataMode = 0; /* do not embed any meta data info */ + + config->userAncDataRate = 0; + + /* SBR rate is set to 0 here, which means it should be set automatically + in FDKaacEnc_AdjustEncSettings() if the user did not set a rate + expilicitely. */ + config->userSbrRatio = 0; + + /* SBR enable set to -1 means to inquire ELD audio configurator for reasonable + * configuration. */ + config->userSbrEnabled = (UCHAR)-1; + + return AAC_ENC_OK; +} + +static void aacEncDistributeSbrBits(CHANNEL_MAPPING *channelMapping, + SBR_ELEMENT_INFO *sbrElInfo, INT bitRate) { + INT codebits = bitRate; + int el; + + /* Copy Element info */ + for (el = 0; el < channelMapping->nElements; el++) { + sbrElInfo[el].ChannelIndex[0] = channelMapping->elInfo[el].ChannelIndex[0]; + sbrElInfo[el].ChannelIndex[1] = channelMapping->elInfo[el].ChannelIndex[1]; + sbrElInfo[el].elType = channelMapping->elInfo[el].elType; + sbrElInfo[el].bitRate = + fMultIfloor(channelMapping->elInfo[el].relativeBits, bitRate); + sbrElInfo[el].instanceTag = channelMapping->elInfo[el].instanceTag; + sbrElInfo[el].nChannelsInEl = channelMapping->elInfo[el].nChannelsInEl; + sbrElInfo[el].fParametricStereo = 0; + sbrElInfo[el].fDualMono = 0; + + codebits -= sbrElInfo[el].bitRate; + } + sbrElInfo[0].bitRate += codebits; +} + +static INT aacEncoder_LimitBitrate(const HANDLE_TRANSPORTENC hTpEnc, + const INT samplingRate, + const INT frameLength, const INT nChannels, + const CHANNEL_MODE channelMode, INT bitRate, + const INT nSubFrames, const INT sbrActive, + const INT sbrDownSampleRate, + const UINT syntaxFlags, + const AUDIO_OBJECT_TYPE aot) { + INT coreSamplingRate; + CHANNEL_MAPPING cm; + + FDKaacEnc_InitChannelMapping(channelMode, CH_ORDER_MPEG, &cm); + + if (sbrActive) { + coreSamplingRate = + samplingRate >> + (sbrEncoder_IsSingleRatePossible(aot) ? (sbrDownSampleRate - 1) : 1); + } else { + coreSamplingRate = samplingRate; + } + + /* Limit bit rate in respect to the core coder */ + bitRate = FDKaacEnc_LimitBitrate(hTpEnc, aot, coreSamplingRate, frameLength, + nChannels, cm.nChannelsEff, bitRate, -1, + NULL, AACENC_BR_MODE_INVALID, nSubFrames); + + /* Limit bit rate in respect to available SBR modes if active */ + if (sbrActive) { + int numIterations = 0; + INT initialBitrate, adjustedBitrate; + adjustedBitrate = bitRate; + + /* Find total bitrate which provides valid configuration for each SBR + * element. */ + do { + int e; + SBR_ELEMENT_INFO sbrElInfo[((8))]; + FDK_ASSERT(cm.nElements <= ((8))); + + initialBitrate = adjustedBitrate; + + /* Get bit rate for each SBR element */ + aacEncDistributeSbrBits(&cm, sbrElInfo, initialBitrate); + + for (e = 0; e < cm.nElements; e++) { + INT sbrElementBitRateIn, sbrBitRateOut; + + if (cm.elInfo[e].elType != ID_SCE && cm.elInfo[e].elType != ID_CPE) { + continue; + } + sbrElementBitRateIn = sbrElInfo[e].bitRate; + + sbrBitRateOut = sbrEncoder_LimitBitRate(sbrElementBitRateIn, + cm.elInfo[e].nChannelsInEl, + coreSamplingRate, aot); + + if (sbrBitRateOut == 0) { + return 0; + } + + /* If bitrates don't match, distribution and limiting needs to be + determined again. Abort element loop and restart with adapted + bitrate. */ + if (sbrElementBitRateIn != sbrBitRateOut) { + if (sbrElementBitRateIn < sbrBitRateOut) { + adjustedBitrate = fMax(initialBitrate, + (INT)fDivNorm((FIXP_DBL)(sbrBitRateOut + 8), + cm.elInfo[e].relativeBits)); + break; + } + + if (sbrElementBitRateIn > sbrBitRateOut) { + adjustedBitrate = fMin(initialBitrate, + (INT)fDivNorm((FIXP_DBL)(sbrBitRateOut - 8), + cm.elInfo[e].relativeBits)); + break; + } + + } /* sbrElementBitRateIn != sbrBitRateOut */ + + } /* elements */ + + numIterations++; /* restrict iteration to worst case of num elements */ + + } while ((initialBitrate != adjustedBitrate) && + (numIterations <= cm.nElements)); + + /* Unequal bitrates mean that no reasonable bitrate configuration found. */ + bitRate = (initialBitrate == adjustedBitrate) ? adjustedBitrate : 0; + } + + /* Limit bit rate in respect to available MPS modes if active */ + if ((aot == AOT_ER_AAC_ELD) && (syntaxFlags & AC_LD_MPS) && + (channelMode == MODE_1)) { + bitRate = FDK_MpegsEnc_GetClosestBitRate( + aot, MODE_212, samplingRate, (sbrActive) ? sbrDownSampleRate : 0, + bitRate); + } + + //fprintf(stderr, "aacEncoder_LimitBitrate(): bitRate=%d\n", bitRate); + return bitRate; +} + +/* + * \brief Get CBR bitrate + * + * \hAacConfig Internal encoder config + * \return Bitrate + */ +static INT FDKaacEnc_GetCBRBitrate(const HANDLE_AACENC_CONFIG hAacConfig, + const INT userSbrRatio) { + INT bitrate = FDKaacEnc_GetChannelModeConfiguration(hAacConfig->channelMode) + ->nChannelsEff * + hAacConfig->sampleRate; + + if (isPsActive(hAacConfig->audioObjectType)) { + bitrate = 1 * bitrate; /* 0.5 bit per sample */ + } else if (isSbrActive(hAacConfig)) { + if ((userSbrRatio == 2) || + ((userSbrRatio == 0) && + (hAacConfig->audioObjectType != AOT_ER_AAC_ELD))) { + bitrate = (bitrate + (bitrate >> 2)) >> 1; /* 0.625 bits per sample */ + } + if ((userSbrRatio == 1) || + ((userSbrRatio == 0) && + (hAacConfig->audioObjectType == AOT_ER_AAC_ELD))) { + bitrate = (bitrate + (bitrate >> 3)); /* 1.125 bits per sample */ + } + } else { + bitrate = bitrate + (bitrate >> 1); /* 1.5 bits per sample */ + } + + return bitrate; +} + +/* + * \brief Consistency check of given USER_PARAM struct and + * copy back configuration from public struct into internal + * encoder configuration struct. + * + * \hAacEncoder Internal encoder config which is to be updated + * \param config User provided config (public struct) + * \return returns always AAC_ENC_OK + */ +static AACENC_ERROR FDKaacEnc_AdjustEncSettings(HANDLE_AACENCODER hAacEncoder, + USER_PARAM *config) { + AACENC_ERROR err = AACENC_OK; + + /* Get struct pointers. */ + HANDLE_AACENC_CONFIG hAacConfig = &hAacEncoder->aacConfig; + + /* Encoder settings update. */ + hAacConfig->sampleRate = config->userSamplerate; + if (config->userDownscaleFactor > 1) { + hAacConfig->useTns = 0; + hAacConfig->usePns = 0; + hAacConfig->useIS = 0; + } else { + hAacConfig->useTns = config->userTns; + hAacConfig->usePns = config->userPns; + hAacConfig->useIS = config->userIntensity; + } + + hAacConfig->audioObjectType = config->userAOT; + hAacConfig->channelMode = + GetCoreChannelMode(config->userChannelMode, hAacConfig->audioObjectType); + hAacConfig->nChannels = + FDKaacEnc_GetChannelModeConfiguration(hAacConfig->channelMode)->nChannels; + hAacConfig->bitrateMode = (AACENC_BITRATE_MODE)config->userBitrateMode; + hAacConfig->bandWidth = config->userBandwidth; + hAacConfig->useRequant = config->userAfterburner; + + hAacConfig->anc_Rate = config->userAncDataRate; + hAacConfig->syntaxFlags = 0; + hAacConfig->epConfig = -1; + + if (hAacConfig->audioObjectType != AOT_ER_AAC_ELD && + config->userDownscaleFactor > 1) { + return AACENC_INVALID_CONFIG; /* downscaling only allowed for AOT_ER_AAC_ELD + */ + } + if (config->userDownscaleFactor > 1 && config->userSbrEnabled == 1) { + return AACENC_INVALID_CONFIG; /* downscaling only allowed for AOT_ER_AAC_ELD + w/o SBR */ + } + if (config->userDownscaleFactor > 1 && config->userChannelMode == 128) { + return AACENC_INVALID_CONFIG; /* disallow downscaling for AAC-ELDv2 */ + } + + if (config->userTpType == TT_MP4_LATM_MCP1 || + config->userTpType == TT_MP4_LATM_MCP0 || + config->userTpType == TT_MP4_LOAS) { + hAacConfig->audioMuxVersion = config->userTpAmxv; + } else { + hAacConfig->audioMuxVersion = -1; + } + + /* Adapt internal AOT when necessary. */ + switch (config->userAOT) { + case AOT_MP2_AAC_LC: + case AOT_MP2_SBR: + hAacConfig->usePns = 0; + FDK_FALLTHROUGH; + case AOT_AAC_LC: + case AOT_SBR: + case AOT_PS: + config->userTpType = + (config->userTpType != TT_UNKNOWN) ? config->userTpType : TT_MP4_ADTS; + hAacConfig->framelength = (config->userFramelength != (UINT)-1) + ? config->userFramelength + : 1024; + if (hAacConfig->framelength != 1024 && hAacConfig->framelength != 960) { + return AACENC_INVALID_CONFIG; + } + break; + + case AOT_DABPLUS_SBR: + case AOT_DABPLUS_PS: + hAacConfig->syntaxFlags |= ((config->userSbrEnabled) ? AC_SBR_PRESENT : 0); + case AOT_DABPLUS_AAC_LC: + config->userTpType = (config->userTpType!=TT_UNKNOWN) ? config->userTpType : TT_DABPLUS; + hAacConfig->framelength = (config->userFramelength!=(UINT)-1) ? config->userFramelength : 960; + if (hAacConfig->framelength != 960) { + return AACENC_INVALID_CONFIG; + } + config->userTpSignaling=2; + if(config->userTpType == TT_DABPLUS) + hAacConfig->syntaxFlags |= AC_DAB; + break; + + case AOT_ER_AAC_LD: + hAacConfig->epConfig = 0; + hAacConfig->syntaxFlags |= AC_ER | AC_LD; + hAacConfig->syntaxFlags |= + ((config->userErTools & 0x1) ? AC_ER_VCB11 : 0); + hAacConfig->syntaxFlags |= ((config->userErTools & 0x2) ? AC_ER_HCR : 0); + hAacConfig->syntaxFlags |= ((config->userErTools & 0x4) ? AC_ER_RVLC : 0); + config->userTpType = + (config->userTpType != TT_UNKNOWN) ? config->userTpType : TT_MP4_LOAS; + hAacConfig->framelength = + (config->userFramelength != (UINT)-1) ? config->userFramelength : 512; + if (hAacConfig->framelength != 512 && hAacConfig->framelength != 480) { + return AACENC_INVALID_CONFIG; + } + break; + case AOT_ER_AAC_ELD: + hAacConfig->epConfig = 0; + hAacConfig->syntaxFlags |= AC_ER | AC_ELD; + hAacConfig->syntaxFlags |= + ((config->userErTools & 0x1) ? AC_ER_VCB11 : 0); + hAacConfig->syntaxFlags |= ((config->userErTools & 0x2) ? AC_ER_HCR : 0); + hAacConfig->syntaxFlags |= ((config->userErTools & 0x4) ? AC_ER_RVLC : 0); + hAacConfig->syntaxFlags |= + ((config->userSbrEnabled == 1) ? AC_SBR_PRESENT : 0); + hAacConfig->syntaxFlags |= + ((config->userChannelMode == MODE_212) ? AC_LD_MPS : 0); + config->userTpType = + (config->userTpType != TT_UNKNOWN) ? config->userTpType : TT_MP4_LOAS; + hAacConfig->framelength = + (config->userFramelength != (UINT)-1) ? config->userFramelength : 512; + + hAacConfig->downscaleFactor = config->userDownscaleFactor; + + switch (config->userDownscaleFactor) { + case 1: + break; + case 2: + case 4: + hAacConfig->syntaxFlags |= AC_ELD_DOWNSCALE; + break; + default: + return AACENC_INVALID_CONFIG; + } + + if (hAacConfig->framelength != 512 && hAacConfig->framelength != 480 && + hAacConfig->framelength != 256 && hAacConfig->framelength != 240 && + hAacConfig->framelength != 128 && hAacConfig->framelength != 120) { + return AACENC_INVALID_CONFIG; + } + break; + default: + break; + } + + /* Initialize SBR parameters */ + if ((config->userSbrRatio == 0) && (isSbrActive(hAacConfig))) { + /* Automatic SBR ratio configuration + * - downsampled SBR for ELD + * - otherwise always dualrate SBR + */ + if (hAacConfig->audioObjectType == AOT_ER_AAC_ELD) { + hAacConfig->sbrRatio = ((hAacConfig->syntaxFlags & AC_LD_MPS) && + (hAacConfig->sampleRate >= 27713)) + ? 2 + : 1; + } else { + hAacConfig->sbrRatio = 2; + } + } else { + /* SBR ratio has been set by the user, so use it. */ + hAacConfig->sbrRatio = isSbrActive(hAacConfig) ? config->userSbrRatio : 0; + } + + /* Set default bitrate */ + hAacConfig->bitRate = config->userBitrate; + + switch (hAacConfig->bitrateMode) { + case AACENC_BR_MODE_CBR: + /* Set default bitrate if no external bitrate declared. */ + if (config->userBitrate == (UINT)-1) { + hAacConfig->bitRate = + FDKaacEnc_GetCBRBitrate(hAacConfig, config->userSbrRatio); + } + hAacConfig->averageBits = -1; + break; + case AACENC_BR_MODE_VBR_1: + case AACENC_BR_MODE_VBR_2: + case AACENC_BR_MODE_VBR_3: + case AACENC_BR_MODE_VBR_4: + case AACENC_BR_MODE_VBR_5: + /* Get bitrate in VBR configuration */ + /* In VBR mode; SBR-modul depends on bitrate, core encoder on bitrateMode. + */ + hAacConfig->bitRate = FDKaacEnc_GetVBRBitrate(hAacConfig->bitrateMode, + hAacConfig->channelMode); + break; + default: + return AACENC_INVALID_CONFIG; + } + + /* set bitreservoir size */ + switch (hAacConfig->bitrateMode) { + case AACENC_BR_MODE_VBR_1: + case AACENC_BR_MODE_VBR_2: + case AACENC_BR_MODE_VBR_3: + case AACENC_BR_MODE_VBR_4: + case AACENC_BR_MODE_VBR_5: + case AACENC_BR_MODE_CBR: + if ((INT)config->userPeakBitrate != -1) { + hAacConfig->maxBitsPerFrame = + (FDKaacEnc_CalcBitsPerFrame( + fMax(hAacConfig->bitRate, (INT)config->userPeakBitrate), + hAacConfig->framelength, hAacConfig->sampleRate) + + 7) & + ~7; + } else { + hAacConfig->maxBitsPerFrame = -1; + } + if (hAacConfig->audioMuxVersion == 2) { + hAacConfig->minBitsPerFrame = + fMin(32 * 8, FDKaacEnc_CalcBitsPerFrame(hAacConfig->bitRate, + hAacConfig->framelength, + hAacConfig->sampleRate)) & + ~7; + } + break; + default: + return AACENC_INVALID_CONFIG; + } + + /* Max bits per frame limitation depending on transport format. */ + if ((config->userTpNsubFrames > 1)) { + int maxFrameLength = 8 * hAacEncoder->outBufferInBytes; + switch (config->userTpType) { + case TT_MP4_LOAS: + maxFrameLength = + fMin(maxFrameLength, 8 * (1 << 13)) / config->userTpNsubFrames; + break; + case TT_MP4_ADTS: + maxFrameLength = fMin(maxFrameLength, 8 * ((1 << 13) - 1)) / + config->userTpNsubFrames; + break; + default: + maxFrameLength = -1; + } + if (maxFrameLength != -1) { + if (hAacConfig->maxBitsPerFrame > maxFrameLength) { + return AACENC_INVALID_CONFIG; + } else if (hAacConfig->maxBitsPerFrame == -1) { + hAacConfig->maxBitsPerFrame = maxFrameLength; + } + } + } + + if ((hAacConfig->audioObjectType == AOT_ER_AAC_ELD) && + !(hAacConfig->syntaxFlags & AC_ELD_DOWNSCALE) && + (config->userSbrEnabled == (UCHAR)-1) && (config->userSbrRatio == 0) && + ((hAacConfig->syntaxFlags & AC_LD_MPS) == 0)) { + const ELD_SBR_CONFIGURATOR *pConfig = NULL; + + if (NULL != + (pConfig = eldSbrConfigurator( + FDKaacEnc_GetChannelModeConfiguration(hAacConfig->channelMode) + ->nChannels, + hAacConfig->sampleRate, hAacConfig->bitRate))) { + hAacConfig->syntaxFlags |= (pConfig->sbrMode == 0) ? 0 : AC_SBR_PRESENT; + hAacConfig->syntaxFlags |= (pConfig->chMode == MODE_212) ? AC_LD_MPS : 0; + hAacConfig->channelMode = + GetCoreChannelMode(pConfig->chMode, hAacConfig->audioObjectType); + hAacConfig->nChannels = + FDKaacEnc_GetChannelModeConfiguration(hAacConfig->channelMode) + ->nChannels; + hAacConfig->sbrRatio = + (pConfig->sbrMode == 0) ? 0 : (pConfig->sbrMode == 1) ? 1 : 2; + } + } + + { + UCHAR tpSignaling = + getSbrSignalingMode(hAacConfig->audioObjectType, config->userTpType, + config->userTpSignaling, hAacConfig->sbrRatio); + + if ((hAacConfig->audioObjectType == AOT_AAC_LC || + hAacConfig->audioObjectType == AOT_SBR || + hAacConfig->audioObjectType == AOT_PS) && + (config->userTpType == TT_MP4_LATM_MCP1 || + config->userTpType == TT_MP4_LATM_MCP0 || + config->userTpType == TT_MP4_LOAS) && + (tpSignaling == 1) && (config->userTpAmxv == 0)) { + /* For backward compatible explicit signaling, AMV1 has to be active */ + return AACENC_INVALID_CONFIG; + } + + if ((hAacConfig->audioObjectType == AOT_AAC_LC || + hAacConfig->audioObjectType == AOT_SBR || + hAacConfig->audioObjectType == AOT_PS) && + (tpSignaling == 0) && (hAacConfig->sbrRatio == 1)) { + /* Downsampled SBR has to be signaled explicitely (for transmission of SBR + * sampling fequency) */ + return AACENC_INVALID_CONFIG; + } + } + + switch (hAacConfig->bitrateMode) { + case AACENC_BR_MODE_CBR: + case AACENC_BR_MODE_VBR_1: + case AACENC_BR_MODE_VBR_2: + case AACENC_BR_MODE_VBR_3: + case AACENC_BR_MODE_VBR_4: + case AACENC_BR_MODE_VBR_5: + /* We need the frame length to call aacEncoder_LimitBitrate() */ + if (0 >= (hAacConfig->bitRate = aacEncoder_LimitBitrate( + NULL, hAacConfig->sampleRate, hAacConfig->framelength, + hAacConfig->nChannels, hAacConfig->channelMode, + hAacConfig->bitRate, hAacConfig->nSubFrames, + isSbrActive(hAacConfig), hAacConfig->sbrRatio, + hAacConfig->syntaxFlags, hAacConfig->audioObjectType))) { + return AACENC_INVALID_CONFIG; + } + break; + default: + break; + } + +#if 0 // TODO Is this still needed? + /* We need the frame length to call aacEncoder_LimitBitrate() */ + hAacConfig->bitRate = aacEncoder_LimitBitrate( + NULL, + hAacConfig->sampleRate, + hAacConfig->framelength, + hAacConfig->nChannels, + hAacConfig->channelMode, + hAacConfig->bitRate, + hAacConfig->nSubFrames, + isSbrActive(hAacConfig), + hAacConfig->sbrRatio, + hAacConfig->audioObjectType + ); +#endif + +/* Configure PNS */ + if (AACENC_BR_MODE_IS_VBR(hAacConfig->bitrateMode) /* VBR without PNS. */ + || (hAacConfig->useTns == 0)) /* TNS required. */ + { + hAacConfig->usePns = 0; + } + + if (hAacConfig->epConfig >= 0) { + hAacConfig->syntaxFlags |= AC_ER; + if (((INT)hAacConfig->channelMode < 1) || + ((INT)hAacConfig->channelMode > 14)) { + return AACENC_INVALID_CONFIG; /* Channel config 0 not supported. */ + } + } + + if ((hAacConfig->syntaxFlags & AC_LD_MPS) == 0) { + if (FDKaacEnc_DetermineEncoderMode(&hAacConfig->channelMode, + hAacConfig->nChannels) != AAC_ENC_OK) { + return AACENC_INVALID_CONFIG; /* nChannels doesn't match chMode, this is + just a check-up */ + } + } + + if ((hAacConfig->nChannels > hAacEncoder->nMaxAacChannels) || + ((FDKaacEnc_GetChannelModeConfiguration(hAacConfig->channelMode) + ->nChannelsEff > hAacEncoder->nMaxSbrChannels) && + isSbrActive(hAacConfig))) { + return AACENC_INVALID_CONFIG; /* not enough channels allocated */ + } + + /* Meta data restriction. */ + switch (hAacConfig->audioObjectType) { + /* Allow metadata support */ + case AOT_AAC_LC: + case AOT_SBR: + case AOT_PS: + case AOT_MP2_AAC_LC: + case AOT_MP2_SBR: + hAacEncoder->metaDataAllowed = 1; + if (!((((INT)hAacConfig->channelMode >= 1) && + ((INT)hAacConfig->channelMode <= 14)) || + (MODE_7_1_REAR_SURROUND == hAacConfig->channelMode) || + (MODE_7_1_FRONT_CENTER == hAacConfig->channelMode))) { + config->userMetaDataMode = 0; + } + break; + /* Prohibit metadata support */ + default: + hAacEncoder->metaDataAllowed = 0; + } + + return err; +} + +static INT aacenc_SbrCallback(void *self, HANDLE_FDK_BITSTREAM hBs, + const INT sampleRateIn, const INT sampleRateOut, + const INT samplesPerFrame, + const AUDIO_OBJECT_TYPE coreCodec, + const MP4_ELEMENT_ID elementID, + const INT elementIndex, const UCHAR harmonicSbr, + const UCHAR stereoConfigIndex, + const UCHAR configMode, UCHAR *configChanged, + const INT downscaleFactor) { + HANDLE_AACENCODER hAacEncoder = (HANDLE_AACENCODER)self; + + sbrEncoder_GetHeader(hAacEncoder->hEnvEnc, hBs, elementIndex, 0); + + return 0; +} + +INT aacenc_SscCallback(void *self, HANDLE_FDK_BITSTREAM hBs, + const AUDIO_OBJECT_TYPE coreCodec, + const INT samplingRate, const INT frameSize, + const INT stereoConfigIndex, + const INT coreSbrFrameLengthIndex, const INT configBytes, + const UCHAR configMode, UCHAR *configChanged) { + HANDLE_AACENCODER hAacEncoder = (HANDLE_AACENCODER)self; + + return (FDK_MpegsEnc_WriteSpatialSpecificConfig(hAacEncoder->hMpsEnc, hBs)); +} + +static AACENC_ERROR aacEncInit(HANDLE_AACENCODER hAacEncoder, ULONG InitFlags, + USER_PARAM *config) { + AACENC_ERROR err = AACENC_OK; + + INT aacBufferOffset = 0; + HANDLE_SBR_ENCODER *hSbrEncoder = &hAacEncoder->hEnvEnc; + HANDLE_AACENC_CONFIG hAacConfig = &hAacEncoder->aacConfig; + + hAacEncoder->nZerosAppended = 0; /* count appended zeros */ + + INT frameLength = hAacConfig->framelength; + + if ((InitFlags & AACENC_INIT_CONFIG)) { + CHANNEL_MODE prevChMode = hAacConfig->channelMode; + + /* Verify settings and update: config -> heAacEncoder */ + if ((err = FDKaacEnc_AdjustEncSettings(hAacEncoder, config)) != AACENC_OK) { + return err; + } + frameLength = hAacConfig->framelength; /* adapt temporal framelength */ + + /* Seamless channel reconfiguration in sbr not fully implemented */ + if ((prevChMode != hAacConfig->channelMode) && isSbrActive(hAacConfig)) { + InitFlags |= AACENC_INIT_STATES; + } + } + + /* Clear input buffer */ + if (InitFlags == AACENC_INIT_ALL) { + FDKmemclear(hAacEncoder->inputBuffer, + sizeof(INT_PCM) * hAacEncoder->inputBufferSize); + } + + if ((InitFlags & AACENC_INIT_CONFIG)) { + aacBufferOffset = 0; + switch (hAacConfig->audioObjectType) { + case AOT_ER_AAC_LD: + hAacEncoder->nDelay = DELAY_AACLD(hAacConfig->framelength); + break; + case AOT_ER_AAC_ELD: + hAacEncoder->nDelay = DELAY_AACELD(hAacConfig->framelength); + break; + default: + hAacEncoder->nDelay = + DELAY_AAC(hAacConfig->framelength); /* AAC encoder delay */ + } + + hAacConfig->ancDataBitRate = 0; + } + + if ((NULL != hAacEncoder->hEnvEnc) && isSbrActive(hAacConfig) && + ((InitFlags & AACENC_INIT_CONFIG) || (InitFlags & AACENC_INIT_STATES))) { + INT sbrError; + UINT initFlag = 0; + SBR_ELEMENT_INFO sbrElInfo[(8)]; + CHANNEL_MAPPING channelMapping; + CHANNEL_MODE channelMode = isPsActive(hAacConfig->audioObjectType) + ? config->userChannelMode + : hAacConfig->channelMode; + INT numChannels = isPsActive(hAacConfig->audioObjectType) + ? config->nChannels + : hAacConfig->nChannels; + + if (FDKaacEnc_InitChannelMapping(channelMode, hAacConfig->channelOrder, + &channelMapping) != AAC_ENC_OK) { + return AACENC_INIT_ERROR; + } + + /* Check return value and if the SBR encoder can handle enough elements */ + if (channelMapping.nElements > (8)) { + return AACENC_INIT_ERROR; + } + + aacEncDistributeSbrBits(&channelMapping, sbrElInfo, hAacConfig->bitRate); + + initFlag += (InitFlags & AACENC_INIT_STATES) ? 1 : 0; + + /* Let the SBR encoder take a look at the configuration and change if + * required. */ + sbrError = sbrEncoder_Init( + *hSbrEncoder, sbrElInfo, channelMapping.nElements, + hAacEncoder->inputBuffer, hAacEncoder->inputBufferSizePerChannel, + &hAacConfig->bandWidth, &aacBufferOffset, &numChannels, + hAacConfig->syntaxFlags, &hAacConfig->sampleRate, &hAacConfig->sbrRatio, + &frameLength, hAacConfig->audioObjectType, &hAacEncoder->nDelay, + (hAacConfig->audioObjectType == AOT_ER_AAC_ELD) ? 1 : TRANS_FAC, + (config->userTpHeaderPeriod != 0xFF) + ? config->userTpHeaderPeriod + : DEFAULT_HEADER_PERIOD_REPETITION_RATE, + initFlag); + + /* Suppress AOT reconfiguration and check error status. */ + if ((sbrError) || (numChannels != hAacConfig->nChannels)) { + return AACENC_INIT_SBR_ERROR; + } + + if (numChannels == 1) { + hAacConfig->channelMode = MODE_1; + } + + /* Never use PNS if SBR is active */ + if (hAacConfig->usePns) { + hAacConfig->usePns = 0; + } + + /* estimated bitrate consumed by SBR or PS */ + hAacConfig->ancDataBitRate = sbrEncoder_GetEstimateBitrate(*hSbrEncoder); + + } /* sbr initialization */ + + if ((hAacEncoder->hMpsEnc != NULL) && (hAacConfig->syntaxFlags & AC_LD_MPS)) { + int coreCoderDelay = DELAY_AACELD(hAacConfig->framelength); + + if (isSbrActive(hAacConfig)) { + coreCoderDelay = hAacConfig->sbrRatio * coreCoderDelay + + sbrEncoder_GetInputDataDelay(*hSbrEncoder); + } + + if (MPS_ENCODER_OK != + FDK_MpegsEnc_Init(hAacEncoder->hMpsEnc, hAacConfig->audioObjectType, + config->userSamplerate, hAacConfig->bitRate, + isSbrActive(hAacConfig) ? hAacConfig->sbrRatio : 0, + frameLength, /* for dual rate sbr this value is + already multiplied by 2 */ + hAacEncoder->inputBufferSizePerChannel, + coreCoderDelay)) { + return AACENC_INIT_MPS_ERROR; + } + } + hAacEncoder->nDelay = + fMax(FDK_MpegsEnc_GetDelay(hAacEncoder->hMpsEnc), hAacEncoder->nDelay); + + /* + * Initialize Transport - Module. + */ + if ((InitFlags & AACENC_INIT_TRANSPORT)) { + UINT flags = 0; + + FDKaacEnc_MapConfig( + &hAacEncoder->coderConfig, config, + getSbrSignalingMode(hAacConfig->audioObjectType, config->userTpType, + config->userTpSignaling, hAacConfig->sbrRatio), + hAacConfig); + + /* create flags for transport encoder */ + if (config->userTpAmxv != 0) { + flags |= TP_FLAG_LATM_AMV; + } + /* Clear output buffer */ + FDKmemclear(hAacEncoder->outBuffer, + hAacEncoder->outBufferInBytes * sizeof(UCHAR)); + + /* Initialize Bitstream encoder */ + if (transportEnc_Init(hAacEncoder->hTpEnc, hAacEncoder->outBuffer, + hAacEncoder->outBufferInBytes, config->userTpType, + &hAacEncoder->coderConfig, flags) != 0) { + return AACENC_INIT_TP_ERROR; + } + + } /* transport initialization */ + + /* + * Initialize AAC - Core. + */ + if ((InitFlags & AACENC_INIT_CONFIG) || (InitFlags & AACENC_INIT_STATES)) { + if (FDKaacEnc_Initialize( + hAacEncoder->hAacEnc, hAacConfig, hAacEncoder->hTpEnc, + (InitFlags & AACENC_INIT_STATES) ? 1 : 0) != AAC_ENC_OK) { + return AACENC_INIT_AAC_ERROR; + } + + } /* aac initialization */ + + /* + * Initialize Meta Data - Encoder. + */ + if (hAacEncoder->hMetadataEnc && (hAacEncoder->metaDataAllowed != 0) && + ((InitFlags & AACENC_INIT_CONFIG) || (InitFlags & AACENC_INIT_STATES))) { + INT inputDataDelay = DELAY_AAC(hAacConfig->framelength); + + if (isSbrActive(hAacConfig) && hSbrEncoder != NULL) { + inputDataDelay = hAacConfig->sbrRatio * inputDataDelay + + sbrEncoder_GetInputDataDelay(*hSbrEncoder); + } + + if (FDK_MetadataEnc_Init(hAacEncoder->hMetadataEnc, + ((InitFlags & AACENC_INIT_STATES) ? 1 : 0), + config->userMetaDataMode, inputDataDelay, + frameLength, config->userSamplerate, + config->nChannels, config->userChannelMode, + hAacConfig->channelOrder) != 0) { + return AACENC_INIT_META_ERROR; + } + + hAacEncoder->nDelay += FDK_MetadataEnc_GetDelay(hAacEncoder->hMetadataEnc); + } + + /* Get custom delay, i.e. the codec delay w/o the decoder's SBR- or MPS delay + */ + if ((hAacEncoder->hMpsEnc != NULL) && (hAacConfig->syntaxFlags & AC_LD_MPS)) { + hAacEncoder->nDelayCore = + hAacEncoder->nDelay - + fMax(0, FDK_MpegsEnc_GetDecDelay(hAacEncoder->hMpsEnc)); + } else if (isSbrActive(hAacConfig) && hSbrEncoder != NULL) { + hAacEncoder->nDelayCore = + hAacEncoder->nDelay - + fMax(0, sbrEncoder_GetSbrDecDelay(hAacEncoder->hEnvEnc)); + } else { + hAacEncoder->nDelayCore = hAacEncoder->nDelay; + } + + /* + * Update pointer to working buffer. + */ + if ((InitFlags & AACENC_INIT_CONFIG)) { + hAacEncoder->inputBufferOffset = aacBufferOffset; + + hAacEncoder->nSamplesToRead = frameLength * config->nChannels; + + } /* parameter changed */ + + return AACENC_OK; +} + +AACENC_ERROR aacEncOpen(HANDLE_AACENCODER *phAacEncoder, const UINT encModules, + const UINT maxChannels) { + AACENC_ERROR err = AACENC_OK; + HANDLE_AACENCODER hAacEncoder = NULL; + + if (phAacEncoder == NULL) { + err = AACENC_INVALID_HANDLE; + goto bail; + } + + /* allocate memory */ + hAacEncoder = Get_AacEncoder(); + + if (hAacEncoder == NULL) { + err = AACENC_MEMORY_ERROR; + goto bail; + } + + FDKmemclear(hAacEncoder, sizeof(AACENCODER)); + + /* Specify encoder modules to be allocated. */ + if (encModules == 0) { + C_ALLOC_SCRATCH_START(_pLibInfo, LIB_INFO, FDK_MODULE_LAST) + LIB_INFO(*pLibInfo) + [FDK_MODULE_LAST] = (LIB_INFO(*)[FDK_MODULE_LAST])_pLibInfo; + FDKinitLibInfo(*pLibInfo); + aacEncGetLibInfo(*pLibInfo); + + hAacEncoder->encoder_modis = ENC_MODE_FLAG_AAC; + if (FDKlibInfo_getCapabilities(*pLibInfo, FDK_SBRENC) & CAPF_SBR_HQ) { + hAacEncoder->encoder_modis |= ENC_MODE_FLAG_SBR; + } + if (FDKlibInfo_getCapabilities(*pLibInfo, FDK_SBRENC) & CAPF_SBR_PS_MPEG) { + hAacEncoder->encoder_modis |= ENC_MODE_FLAG_PS; + } + if (FDKlibInfo_getCapabilities(*pLibInfo, FDK_AACENC) & CAPF_AAC_DRC) { + hAacEncoder->encoder_modis |= ENC_MODE_FLAG_META; + } + hAacEncoder->encoder_modis |= ENC_MODE_FLAG_SAC; + + C_ALLOC_SCRATCH_END(_pLibInfo, LIB_INFO, FDK_MODULE_LAST) + } else { + hAacEncoder->encoder_modis = encModules; + } + + /* Determine max channel configuration. */ + if (maxChannels == 0) { + hAacEncoder->nMaxAacChannels = (8); + hAacEncoder->nMaxSbrChannels = (8); + } else { + hAacEncoder->nMaxAacChannels = (maxChannels & 0x00FF); + if ((hAacEncoder->encoder_modis & ENC_MODE_FLAG_SBR)) { + hAacEncoder->nMaxSbrChannels = (maxChannels & 0xFF00) + ? (maxChannels >> 8) + : hAacEncoder->nMaxAacChannels; + } + + if ((hAacEncoder->nMaxAacChannels > (8)) || + (hAacEncoder->nMaxSbrChannels > (8))) { + err = AACENC_INVALID_CONFIG; + goto bail; + } + } /* maxChannels==0 */ + + /* Max number of elements could be tuned any more. */ + hAacEncoder->nMaxAacElements = fixMin(((8)), hAacEncoder->nMaxAacChannels); + hAacEncoder->nMaxSbrElements = fixMin((8), hAacEncoder->nMaxSbrChannels); + + /* In case of memory overlay, allocate memory out of libraries */ + + if (hAacEncoder->encoder_modis & (ENC_MODE_FLAG_SBR | ENC_MODE_FLAG_PS)) + hAacEncoder->inputBufferSizePerChannel = INPUTBUFFER_SIZE; + else + hAacEncoder->inputBufferSizePerChannel = (1024); + + hAacEncoder->inputBufferSize = + hAacEncoder->nMaxAacChannels * hAacEncoder->inputBufferSizePerChannel; + + if (NULL == (hAacEncoder->inputBuffer = (INT_PCM *)FDKcalloc( + hAacEncoder->inputBufferSize, sizeof(INT_PCM)))) { + err = AACENC_MEMORY_ERROR; + goto bail; + } + + /* Open SBR Encoder */ + if (hAacEncoder->encoder_modis & ENC_MODE_FLAG_SBR) { + if (sbrEncoder_Open( + &hAacEncoder->hEnvEnc, hAacEncoder->nMaxSbrElements, + hAacEncoder->nMaxSbrChannels, + (hAacEncoder->encoder_modis & ENC_MODE_FLAG_PS) ? 1 : 0)) { + err = AACENC_MEMORY_ERROR; + goto bail; + } + + if (NULL == (hAacEncoder->pSbrPayload = (SBRENC_EXT_PAYLOAD *)FDKcalloc( + 1, sizeof(SBRENC_EXT_PAYLOAD)))) { + err = AACENC_MEMORY_ERROR; + goto bail; + } + } /* (encoder_modis&ENC_MODE_FLAG_SBR) */ + + /* Open Aac Encoder */ + if (FDKaacEnc_Open(&hAacEncoder->hAacEnc, hAacEncoder->nMaxAacElements, + hAacEncoder->nMaxAacChannels, (1)) != AAC_ENC_OK) { + err = AACENC_MEMORY_ERROR; + goto bail; + } + + /* Bitstream output buffer */ + hAacEncoder->outBufferInBytes = + 1 << (DFRACT_BITS - CntLeadingZeros(fixMax( + 1, ((1) * hAacEncoder->nMaxAacChannels * 6144) >> + 2))); /* buffer has to be 2^n */ + if (NULL == (hAacEncoder->outBuffer = (UCHAR *)FDKcalloc( + hAacEncoder->outBufferInBytes, sizeof(UCHAR)))) { + err = AACENC_MEMORY_ERROR; + goto bail; + } + + /* Open Meta Data Encoder */ + if (hAacEncoder->encoder_modis & ENC_MODE_FLAG_META) { + if (FDK_MetadataEnc_Open(&hAacEncoder->hMetadataEnc, + (UINT)hAacEncoder->nMaxAacChannels)) { + err = AACENC_MEMORY_ERROR; + goto bail; + } + } /* (encoder_modis&ENC_MODE_FLAG_META) */ + + /* Open MPEG Surround Encoder */ + if (hAacEncoder->encoder_modis & ENC_MODE_FLAG_SAC) { + if (MPS_ENCODER_OK != FDK_MpegsEnc_Open(&hAacEncoder->hMpsEnc)) { + err = AACENC_MEMORY_ERROR; + goto bail; + } + } /* (hAacEncoder->encoder_modis&ENC_MODE_FLAG_SAC) */ + + /* Open Transport Encoder */ + if (transportEnc_Open(&hAacEncoder->hTpEnc) != 0) { + err = AACENC_MEMORY_ERROR; + goto bail; + } else { + C_ALLOC_SCRATCH_START(_pLibInfo, LIB_INFO, FDK_MODULE_LAST) + + LIB_INFO(*pLibInfo) + [FDK_MODULE_LAST] = (LIB_INFO(*)[FDK_MODULE_LAST])_pLibInfo; + + FDKinitLibInfo(*pLibInfo); + transportEnc_GetLibInfo(*pLibInfo); + + /* Get capabilty flag for transport encoder. */ + hAacEncoder->CAPF_tpEnc = FDKlibInfo_getCapabilities(*pLibInfo, FDK_TPENC); + + C_ALLOC_SCRATCH_END(_pLibInfo, LIB_INFO, FDK_MODULE_LAST) + } + if (transportEnc_RegisterSbrCallback(hAacEncoder->hTpEnc, aacenc_SbrCallback, + hAacEncoder) != 0) { + err = AACENC_INIT_TP_ERROR; + goto bail; + } + if (transportEnc_RegisterSscCallback(hAacEncoder->hTpEnc, aacenc_SscCallback, + hAacEncoder) != 0) { + err = AACENC_INIT_TP_ERROR; + goto bail; + } + + /* Initialize encoder instance with default parameters. */ + aacEncDefaultConfig(&hAacEncoder->aacConfig, &hAacEncoder->extParam); + + /* Initialize headerPeriod in coderConfig for aacEncoder_GetParam(). */ + hAacEncoder->coderConfig.headerPeriod = + hAacEncoder->extParam.userTpHeaderPeriod; + + /* All encoder modules have to be initialized */ + hAacEncoder->InitFlags = AACENC_INIT_ALL; + + /* Return encoder instance */ + *phAacEncoder = hAacEncoder; + + return err; + +bail: + aacEncClose(&hAacEncoder); + + return err; +} + +AACENC_ERROR aacEncClose(HANDLE_AACENCODER *phAacEncoder) { + AACENC_ERROR err = AACENC_OK; + + if (phAacEncoder == NULL) { + err = AACENC_INVALID_HANDLE; + goto bail; + } + + if (*phAacEncoder != NULL) { + HANDLE_AACENCODER hAacEncoder = *phAacEncoder; + + if (hAacEncoder->inputBuffer != NULL) { + FDKfree(hAacEncoder->inputBuffer); + hAacEncoder->inputBuffer = NULL; + } + if (hAacEncoder->outBuffer != NULL) { + FDKfree(hAacEncoder->outBuffer); + hAacEncoder->outBuffer = NULL; + } + + if (hAacEncoder->hEnvEnc) { + sbrEncoder_Close(&hAacEncoder->hEnvEnc); + } + if (hAacEncoder->pSbrPayload != NULL) { + FDKfree(hAacEncoder->pSbrPayload); + hAacEncoder->pSbrPayload = NULL; + } + if (hAacEncoder->hAacEnc) { + FDKaacEnc_Close(&hAacEncoder->hAacEnc); + } + + transportEnc_Close(&hAacEncoder->hTpEnc); + + if (hAacEncoder->hMetadataEnc) { + FDK_MetadataEnc_Close(&hAacEncoder->hMetadataEnc); + } + if (hAacEncoder->hMpsEnc) { + FDK_MpegsEnc_Close(&hAacEncoder->hMpsEnc); + } + + Free_AacEncoder(phAacEncoder); + } + +bail: + return err; +} + +AACENC_ERROR aacEncEncode(const HANDLE_AACENCODER hAacEncoder, + const AACENC_BufDesc *inBufDesc, + const AACENC_BufDesc *outBufDesc, + const AACENC_InArgs *inargs, + AACENC_OutArgs *outargs) { + AACENC_ERROR err = AACENC_OK; + INT i, nBsBytes = 0; + INT outBytes[(1)]; + int nExtensions = 0; + int ancDataExtIdx = -1; + + /* deal with valid encoder handle */ + if (hAacEncoder == NULL) { + err = AACENC_INVALID_HANDLE; + goto bail; + } + + /* + * Adjust user settings and trigger reinitialization. + */ + if (hAacEncoder->InitFlags != 0) { + err = + aacEncInit(hAacEncoder, hAacEncoder->InitFlags, &hAacEncoder->extParam); + + if (err != AACENC_OK) { + /* keep init flags alive! */ + goto bail; + } + hAacEncoder->InitFlags = AACENC_INIT_NONE; + } + + if (outargs != NULL) { + FDKmemclear(outargs, sizeof(AACENC_OutArgs)); + } + + if (outBufDesc != NULL) { + for (i = 0; i < outBufDesc->numBufs; i++) { + if (outBufDesc->bufs[i] != NULL) { + FDKmemclear(outBufDesc->bufs[i], outBufDesc->bufSizes[i]); + } + } + } + + /* + * If only encoder handle given, independent (re)initialization can be + * triggered. + */ + if ((inBufDesc == NULL) && (outBufDesc == NULL) && (inargs == NULL) && + (outargs == NULL)) { + goto bail; + } + + /* check if buffer descriptors are filled out properly. */ + if ((inargs == NULL) || (outargs == NULL) || + ((AACENC_OK != validateBufDesc(inBufDesc)) && + (inargs->numInSamples > 0)) || + (AACENC_OK != validateBufDesc(outBufDesc))) { + err = AACENC_UNSUPPORTED_PARAMETER; + goto bail; + } + + /* reset buffer wich signals number of valid bytes in output bitstream buffer + */ + FDKmemclear(outBytes, hAacEncoder->aacConfig.nSubFrames * sizeof(INT)); + + /* + * Manage incoming audio samples. + */ + if ((inBufDesc != NULL) && (inargs->numInSamples > 0) && + (getBufDescIdx(inBufDesc, IN_AUDIO_DATA) != -1)) { + /* Fetch data until nSamplesToRead reached */ + INT idx = getBufDescIdx(inBufDesc, IN_AUDIO_DATA); + INT newSamples = + fixMax(0, fixMin(inargs->numInSamples, hAacEncoder->nSamplesToRead - + hAacEncoder->nSamplesRead)); + INT_PCM *pIn = + hAacEncoder->inputBuffer + + (hAacEncoder->inputBufferOffset + hAacEncoder->nSamplesRead) / + hAacEncoder->aacConfig.nChannels; + + /* Copy new input samples to internal buffer */ + if (inBufDesc->bufElSizes[idx] == (INT)sizeof(INT_PCM)) { + FDK_deinterleave((INT_PCM *)inBufDesc->bufs[idx], pIn, + hAacEncoder->extParam.nChannels, + newSamples / hAacEncoder->extParam.nChannels, + hAacEncoder->inputBufferSizePerChannel); + } else if (inBufDesc->bufElSizes[idx] > (INT)sizeof(INT_PCM)) { + FDK_deinterleave((LONG *)inBufDesc->bufs[idx], pIn, + hAacEncoder->extParam.nChannels, + newSamples / hAacEncoder->extParam.nChannels, + hAacEncoder->inputBufferSizePerChannel); + } else { + FDK_deinterleave((SHORT *)inBufDesc->bufs[idx], pIn, + hAacEncoder->extParam.nChannels, + newSamples / hAacEncoder->extParam.nChannels, + hAacEncoder->inputBufferSizePerChannel); + } + hAacEncoder->nSamplesRead += newSamples; + + /* Number of fetched input buffer samples. */ + outargs->numInSamples = newSamples; + } + + /* input buffer completely filled ? */ + if (hAacEncoder->nSamplesRead < hAacEncoder->nSamplesToRead) { + /* - eof reached and flushing enabled, or + - return to main and wait for further incoming audio samples */ + if (inargs->numInSamples == -1) { + if ((hAacEncoder->nZerosAppended < hAacEncoder->nDelay)) { + int nZeros = (hAacEncoder->nSamplesToRead - hAacEncoder->nSamplesRead) / + hAacEncoder->extParam.nChannels; + + FDK_ASSERT(nZeros >= 0); + + /* clear out until end-of-buffer */ + if (nZeros) { + for (i = 0; i < (int)hAacEncoder->extParam.nChannels; i++) { + FDKmemclear(hAacEncoder->inputBuffer + + i * hAacEncoder->inputBufferSizePerChannel + + (hAacEncoder->inputBufferOffset + + hAacEncoder->nSamplesRead) / + hAacEncoder->extParam.nChannels, + sizeof(INT_PCM) * nZeros); + } + hAacEncoder->nZerosAppended += nZeros; + hAacEncoder->nSamplesRead = hAacEncoder->nSamplesToRead; + } + } else { /* flushing completed */ + err = AACENC_ENCODE_EOF; /* eof reached */ + goto bail; + } + } else { /* inargs->numInSamples!= -1 */ + goto bail; /* not enough samples in input buffer and no flushing enabled + */ + } + } + + /* init payload */ + FDKmemclear(hAacEncoder->extPayload, + sizeof(AACENC_EXT_PAYLOAD) * MAX_TOTAL_EXT_PAYLOADS); + for (i = 0; i < MAX_TOTAL_EXT_PAYLOADS; i++) { + hAacEncoder->extPayload[i].associatedChElement = -1; + } + if (hAacEncoder->pSbrPayload != NULL) { + FDKmemclear(hAacEncoder->pSbrPayload, sizeof(*hAacEncoder->pSbrPayload)); + } + + /* + * Calculate Meta Data info. + */ + if ((hAacEncoder->hMetadataEnc != NULL) && + (hAacEncoder->metaDataAllowed != 0)) { + const AACENC_MetaData *pMetaData = NULL; + AACENC_EXT_PAYLOAD *pMetaDataExtPayload = NULL; + UINT nMetaDataExtensions = 0; + INT matrix_mixdown_idx = 0; + + /* New meta data info available ? */ + if (getBufDescIdx(inBufDesc, IN_METADATA_SETUP) != -1) { + pMetaData = + (AACENC_MetaData *) + inBufDesc->bufs[getBufDescIdx(inBufDesc, IN_METADATA_SETUP)]; + } + + FDK_MetadataEnc_Process( + hAacEncoder->hMetadataEnc, + hAacEncoder->inputBuffer + hAacEncoder->inputBufferOffset / + hAacEncoder->coderConfig.noChannels, + hAacEncoder->inputBufferSizePerChannel, hAacEncoder->nSamplesRead, + pMetaData, &pMetaDataExtPayload, &nMetaDataExtensions, + &matrix_mixdown_idx); + + for (i = 0; i < (INT)nMetaDataExtensions; + i++) { /* Get meta data extension payload. */ + hAacEncoder->extPayload[nExtensions++] = pMetaDataExtPayload[i]; + } + + if ((matrix_mixdown_idx != -1) && + ((hAacEncoder->extParam.userChannelMode == MODE_1_2_2) || + (hAacEncoder->extParam.userChannelMode == MODE_1_2_2_1))) { + /* Set matrix mixdown coefficient. */ + UINT pceValue = (UINT)((0 << 3) | ((matrix_mixdown_idx & 0x3) << 1) | 1); + if (hAacEncoder->extParam.userPceAdditions != pceValue) { + hAacEncoder->extParam.userPceAdditions = pceValue; + hAacEncoder->InitFlags |= AACENC_INIT_TRANSPORT; + } + } + } + + /* + * Encode MPS data. + */ + if ((hAacEncoder->hMpsEnc != NULL) && + (hAacEncoder->aacConfig.syntaxFlags & AC_LD_MPS)) { + AACENC_EXT_PAYLOAD mpsExtensionPayload; + FDKmemclear(&mpsExtensionPayload, sizeof(AACENC_EXT_PAYLOAD)); + + if (MPS_ENCODER_OK != + FDK_MpegsEnc_Process( + hAacEncoder->hMpsEnc, + hAacEncoder->inputBuffer + hAacEncoder->inputBufferOffset / + hAacEncoder->coderConfig.noChannels, + hAacEncoder->nSamplesRead, &mpsExtensionPayload)) { + err = AACENC_ENCODE_ERROR; + goto bail; + } + + if ((mpsExtensionPayload.pData != NULL) && + ((mpsExtensionPayload.dataSize != 0))) { + hAacEncoder->extPayload[nExtensions++] = mpsExtensionPayload; + } + } + + if ((NULL != hAacEncoder->hEnvEnc) && (NULL != hAacEncoder->pSbrPayload) && + isSbrActive(&hAacEncoder->aacConfig)) { + INT nPayload = 0; + + /* + * Encode SBR data. + */ + if (sbrEncoder_EncodeFrame(hAacEncoder->hEnvEnc, hAacEncoder->inputBuffer, + hAacEncoder->inputBufferSizePerChannel, + hAacEncoder->pSbrPayload->dataSize[nPayload], + hAacEncoder->pSbrPayload->data[nPayload])) { + err = AACENC_ENCODE_ERROR; + goto bail; + } else { + /* Add SBR extension payload */ + for (i = 0; i < (8); i++) { + if (hAacEncoder->pSbrPayload->dataSize[nPayload][i] > 0) { + hAacEncoder->extPayload[nExtensions].pData = + hAacEncoder->pSbrPayload->data[nPayload][i]; + { + hAacEncoder->extPayload[nExtensions].dataSize = + hAacEncoder->pSbrPayload->dataSize[nPayload][i]; + hAacEncoder->extPayload[nExtensions].associatedChElement = i; + } + hAacEncoder->extPayload[nExtensions].dataType = + EXT_SBR_DATA; /* Once SBR Encoder supports SBR CRC set + EXT_SBR_DATA_CRC */ + nExtensions++; /* or EXT_SBR_DATA according to configuration. */ + FDK_ASSERT(nExtensions <= MAX_TOTAL_EXT_PAYLOADS); + } + } + nPayload++; + } + } /* sbrEnabled */ + + if ((inargs->numAncBytes > 0) && + (getBufDescIdx(inBufDesc, IN_ANCILLRY_DATA) != -1)) { + INT idx = getBufDescIdx(inBufDesc, IN_ANCILLRY_DATA); + hAacEncoder->extPayload[nExtensions].dataSize = inargs->numAncBytes * 8; + hAacEncoder->extPayload[nExtensions].pData = (UCHAR *)inBufDesc->bufs[idx]; + hAacEncoder->extPayload[nExtensions].dataType = EXT_DATA_ELEMENT; + hAacEncoder->extPayload[nExtensions].associatedChElement = -1; + ancDataExtIdx = nExtensions; /* store index */ + nExtensions++; + } + + /* + * Encode AAC - Core. + */ + if (FDKaacEnc_EncodeFrame(hAacEncoder->hAacEnc, hAacEncoder->hTpEnc, + hAacEncoder->inputBuffer, + hAacEncoder->inputBufferSizePerChannel, outBytes, + hAacEncoder->extPayload) != AAC_ENC_OK) { + err = AACENC_ENCODE_ERROR; + goto bail; + } + + if (ancDataExtIdx >= 0) { + outargs->numAncBytes = + inargs->numAncBytes - + (hAacEncoder->extPayload[ancDataExtIdx].dataSize >> 3); + } + + /* samples exhausted */ + hAacEncoder->nSamplesRead -= hAacEncoder->nSamplesToRead; + + /* + * Delay balancing buffer handling + */ + if (isSbrActive(&hAacEncoder->aacConfig)) { + sbrEncoder_UpdateBuffers(hAacEncoder->hEnvEnc, hAacEncoder->inputBuffer, + hAacEncoder->inputBufferSizePerChannel); + } + + /* + * Make bitstream public + */ + if ((outBufDesc != NULL) && (outBufDesc->numBufs >= 1)) { + INT bsIdx = getBufDescIdx(outBufDesc, OUT_BITSTREAM_DATA); + INT auIdx = getBufDescIdx(outBufDesc, OUT_AU_SIZES); + + for (i = 0, nBsBytes = 0; i < hAacEncoder->aacConfig.nSubFrames; i++) { + nBsBytes += outBytes[i]; + + if (auIdx != -1) { + ((INT *)outBufDesc->bufs[auIdx])[i] = outBytes[i]; + } + } + + if ((bsIdx != -1) && (outBufDesc->bufSizes[bsIdx] >= nBsBytes)) { + FDKmemcpy(outBufDesc->bufs[bsIdx], hAacEncoder->outBuffer, + sizeof(UCHAR) * nBsBytes); + outargs->numOutBytes = nBsBytes; + outargs->bitResState = + FDKaacEnc_GetBitReservoirState(hAacEncoder->hAacEnc); + } else { + /* output buffer too small, can't write valid bitstream */ + err = AACENC_ENCODE_ERROR; + goto bail; + } + } + +bail: + if (err == AACENC_ENCODE_ERROR) { + /* All encoder modules have to be initialized */ + hAacEncoder->InitFlags = AACENC_INIT_ALL; + } + + return err; +} + +static AAC_ENCODER_ERROR aacEncGetConf(HANDLE_AACENCODER hAacEncoder, + UINT *size, UCHAR *confBuffer) { + FDK_BITSTREAM tmpConf; + UINT confType; + UCHAR buf[64]; + int err; + + /* Init bit buffer */ + FDKinitBitStream(&tmpConf, buf, 64, 0, BS_WRITER); + + /* write conf in tmp buffer */ + err = transportEnc_GetConf(hAacEncoder->hTpEnc, &hAacEncoder->coderConfig, + &tmpConf, &confType); + + /* copy data to outbuffer: length in bytes */ + FDKbyteAlign(&tmpConf, 0); + + /* Check buffer size */ + if (FDKgetValidBits(&tmpConf) > ((*size) << 3)) return AAC_ENC_UNKNOWN; + + FDKfetchBuffer(&tmpConf, confBuffer, size); + + if (err != 0) + return AAC_ENC_UNKNOWN; + else + return AAC_ENC_OK; +} + +AACENC_ERROR aacEncGetLibInfo(LIB_INFO *info) { + int i = 0; + + if (info == NULL) { + return AACENC_INVALID_HANDLE; + } + + FDK_toolsGetLibInfo(info); + transportEnc_GetLibInfo(info); + sbrEncoder_GetLibInfo(info); + FDK_MpegsEnc_GetLibInfo(info); + + /* search for next free tab */ + for (i = 0; i < FDK_MODULE_LAST; i++) { + if (info[i].module_id == FDK_NONE) break; + } + if (i == FDK_MODULE_LAST) { + return AACENC_INIT_ERROR; + } + + info[i].module_id = FDK_AACENC; + info[i].build_date = AACENCODER_LIB_BUILD_DATE; + info[i].build_time = AACENCODER_LIB_BUILD_TIME; + info[i].title = AACENCODER_LIB_TITLE; + info[i].version = + LIB_VERSION(AACENCODER_LIB_VL0, AACENCODER_LIB_VL1, AACENCODER_LIB_VL2); + ; + LIB_VERSION_STRING(&info[i]); + + /* Capability flags */ + info[i].flags = 0 | CAPF_AAC_1024 | CAPF_AAC_LC | CAPF_AAC_960| CAPF_AAC_512 | + CAPF_AAC_480 | CAPF_AAC_DRC | CAPF_AAC_ELD_DOWNSCALE; + /* End of flags */ + + return AACENC_OK; +} + +AACENC_ERROR aacEncoder_SetParam(const HANDLE_AACENCODER hAacEncoder, + const AACENC_PARAM param, const UINT value) { + AACENC_ERROR err = AACENC_OK; + USER_PARAM *settings = &hAacEncoder->extParam; + + /* check encoder handle */ + if (hAacEncoder == NULL) { + err = AACENC_INVALID_HANDLE; + goto bail; + } + + /* apply param value */ + switch (param) { + case AACENC_AOT: + if (settings->userAOT != (AUDIO_OBJECT_TYPE)value) { + /* check if AOT matches the allocated modules */ + switch (value) { + case AOT_PS: + case AOT_DABPLUS_PS: + if (!(hAacEncoder->encoder_modis & (ENC_MODE_FLAG_PS))) { + err = AACENC_INVALID_CONFIG; + goto bail; + } + FDK_FALLTHROUGH; + case AOT_SBR: + case AOT_MP2_SBR: + case AOT_DABPLUS_SBR: + if (!(hAacEncoder->encoder_modis & (ENC_MODE_FLAG_SBR))) { + err = AACENC_INVALID_CONFIG; + goto bail; + } + FDK_FALLTHROUGH; + case AOT_AAC_LC: + case AOT_MP2_AAC_LC: + case AOT_DABPLUS_AAC_LC: + case AOT_ER_AAC_LD: + case AOT_ER_AAC_ELD: + if (!(hAacEncoder->encoder_modis & (ENC_MODE_FLAG_AAC))) { + err = AACENC_INVALID_CONFIG; + goto bail; + } + break; + default: + err = AACENC_INVALID_CONFIG; + goto bail; + } /* switch value */ + settings->userAOT = (AUDIO_OBJECT_TYPE)value; + hAacEncoder->InitFlags |= + AACENC_INIT_CONFIG | AACENC_INIT_STATES | AACENC_INIT_TRANSPORT; + } + break; + case AACENC_BITRATE: + if (settings->userBitrate != value) { + settings->userBitrate = value; + hAacEncoder->InitFlags |= AACENC_INIT_CONFIG | AACENC_INIT_TRANSPORT; + } + break; + case AACENC_BITRATEMODE: + if (settings->userBitrateMode != value) { + switch (value) { + case 0: + case 1: + case 2: + case 3: + case 4: + case 5: + case 7: + case 8: + settings->userBitrateMode = value; + hAacEncoder->InitFlags |= + AACENC_INIT_CONFIG | AACENC_INIT_TRANSPORT; + break; + default: + err = AACENC_INVALID_CONFIG; + break; + } /* switch value */ + } + break; + case AACENC_SAMPLERATE: + if (settings->userSamplerate != value) { + if (!((value == 8000) || (value == 11025) || (value == 12000) || + (value == 16000) || (value == 22050) || (value == 24000) || + (value == 32000) || (value == 44100) || (value == 48000) || + (value == 64000) || (value == 88200) || (value == 96000))) { + err = AACENC_INVALID_CONFIG; + break; + } + settings->userSamplerate = value; + hAacEncoder->nSamplesRead = 0; /* reset internal inputbuffer */ + hAacEncoder->InitFlags |= + AACENC_INIT_CONFIG | AACENC_INIT_STATES | AACENC_INIT_TRANSPORT; + } + break; + case AACENC_CHANNELMODE: + if (settings->userChannelMode != (CHANNEL_MODE)value) { + if (((CHANNEL_MODE)value == MODE_212) && + (NULL != hAacEncoder->hMpsEnc)) { + settings->userChannelMode = (CHANNEL_MODE)value; + settings->nChannels = 2; + } else { + const CHANNEL_MODE_CONFIG_TAB *pConfig = + FDKaacEnc_GetChannelModeConfiguration((CHANNEL_MODE)value); + if (pConfig == NULL) { + err = AACENC_INVALID_CONFIG; + break; + } + if ((pConfig->nElements > hAacEncoder->nMaxAacElements) || + (pConfig->nChannelsEff > hAacEncoder->nMaxAacChannels)) { + err = AACENC_INVALID_CONFIG; + break; + } + + settings->userChannelMode = (CHANNEL_MODE)value; + settings->nChannels = pConfig->nChannels; + } + hAacEncoder->nSamplesRead = 0; /* reset internal inputbuffer */ + hAacEncoder->InitFlags |= AACENC_INIT_CONFIG | AACENC_INIT_TRANSPORT; + if (!((value >= 1) && (value <= 6))) { + hAacEncoder->InitFlags |= AACENC_INIT_STATES; + } + } + break; + case AACENC_BANDWIDTH: + if (settings->userBandwidth != value) { + settings->userBandwidth = value; + hAacEncoder->InitFlags |= AACENC_INIT_CONFIG; + } + break; + case AACENC_CHANNELORDER: + if (hAacEncoder->aacConfig.channelOrder != (CHANNEL_ORDER)value) { + if (!((value == 0) || (value == 1) || (value == 2))) { + err = AACENC_INVALID_CONFIG; + break; + } + hAacEncoder->aacConfig.channelOrder = (CHANNEL_ORDER)value; + hAacEncoder->nSamplesRead = 0; /* reset internal inputbuffer */ + hAacEncoder->InitFlags |= + AACENC_INIT_CONFIG | AACENC_INIT_STATES | AACENC_INIT_TRANSPORT; + } + break; + case AACENC_AFTERBURNER: + if (settings->userAfterburner != value) { + if (!((value == 0) || (value == 1))) { + err = AACENC_INVALID_CONFIG; + break; + } + settings->userAfterburner = value; + hAacEncoder->InitFlags |= AACENC_INIT_CONFIG; + } + break; + case AACENC_GRANULE_LENGTH: + if (settings->userFramelength != value) { + switch (value) { + case 1024: + case 960: + case 512: + case 480: + case 256: + case 240: + case 128: + case 120: + if ((value << 1) == 480 || (value << 1) == 512) { + settings->userDownscaleFactor = 2; + } else if ((value << 2) == 480 || (value << 2) == 512) { + settings->userDownscaleFactor = 4; + } + settings->userFramelength = value; + hAacEncoder->InitFlags |= + AACENC_INIT_CONFIG | AACENC_INIT_TRANSPORT; + break; + default: + err = AACENC_INVALID_CONFIG; + break; + } + } + break; + case AACENC_SBR_RATIO: + if (settings->userSbrRatio != value) { + if (!((value == 0) || (value == 1) || (value == 2))) { + err = AACENC_INVALID_CONFIG; + break; + } + settings->userSbrRatio = value; + hAacEncoder->InitFlags |= + AACENC_INIT_CONFIG | AACENC_INIT_STATES | AACENC_INIT_TRANSPORT; + } + break; + case AACENC_SBR_MODE: + if ((settings->userSbrEnabled != value) && + (NULL != hAacEncoder->hEnvEnc)) { + settings->userSbrEnabled = value; + hAacEncoder->InitFlags |= + AACENC_INIT_CONFIG | AACENC_INIT_STATES | AACENC_INIT_TRANSPORT; + } + break; + case AACENC_TRANSMUX: + if (settings->userTpType != (TRANSPORT_TYPE)value) { + TRANSPORT_TYPE type = (TRANSPORT_TYPE)value; + UINT flags = hAacEncoder->CAPF_tpEnc; + + if (!(((type == TT_MP4_ADIF) && (flags & CAPF_ADIF)) || + ((type == TT_MP4_ADTS) && (flags & CAPF_ADTS)) || + ((type == TT_MP4_LATM_MCP0) && + ((flags & CAPF_LATM) && (flags & CAPF_RAWPACKETS))) || + ((type == TT_MP4_LATM_MCP1) && + ((flags & CAPF_LATM) && (flags & CAPF_RAWPACKETS))) || + ((type == TT_MP4_LOAS) && (flags & CAPF_LOAS)) || + ((type == TT_MP4_RAW) && (flags & CAPF_RAWPACKETS)) || + ((type == TT_DABPLUS) && ((flags & CAPF_DAB_AAC) && (flags & CAPF_RAWPACKETS))) )) { + err = AACENC_INVALID_CONFIG; + break; + } + settings->userTpType = (TRANSPORT_TYPE)value; + hAacEncoder->InitFlags |= AACENC_INIT_TRANSPORT; + } + break; + case AACENC_SIGNALING_MODE: + if (settings->userTpSignaling != value) { + if (!((value == 0) || (value == 1) || (value == 2))) { + err = AACENC_INVALID_CONFIG; + break; + } + settings->userTpSignaling = value; + hAacEncoder->InitFlags |= AACENC_INIT_TRANSPORT; + } + break; + case AACENC_PROTECTION: + if (settings->userTpProtection != value) { + if (!((value == 0) || (value == 1))) { + err = AACENC_INVALID_CONFIG; + break; + } + settings->userTpProtection = value; + hAacEncoder->InitFlags |= AACENC_INIT_TRANSPORT; + } + break; + case AACENC_HEADER_PERIOD: + if (settings->userTpHeaderPeriod != value) { + if (!(((INT)value >= 0) && (value <= 255))) { + err = AACENC_INVALID_CONFIG; + break; + } + settings->userTpHeaderPeriod = value; + hAacEncoder->InitFlags |= AACENC_INIT_TRANSPORT; + } + break; + case AACENC_AUDIOMUXVER: + if (settings->userTpAmxv != value) { + if (!((value == 0) || (value == 1) || (value == 2))) { + err = AACENC_INVALID_CONFIG; + break; + } + settings->userTpAmxv = value; + hAacEncoder->InitFlags |= AACENC_INIT_TRANSPORT; + } + break; + case AACENC_TPSUBFRAMES: + if (settings->userTpNsubFrames != value) { + if (!((value >= 1) && (value <= 6))) { + err = AACENC_INVALID_CONFIG; + break; + } + settings->userTpNsubFrames = value; + hAacEncoder->InitFlags |= AACENC_INIT_TRANSPORT; + } + break; + case AACENC_ANCILLARY_BITRATE: + if (settings->userAncDataRate != value) { + settings->userAncDataRate = value; + } + break; + case AACENC_CONTROL_STATE: + if (hAacEncoder->InitFlags != value) { + if (value & AACENC_RESET_INBUFFER) { + hAacEncoder->nSamplesRead = 0; + } + hAacEncoder->InitFlags = value; + } + break; + case AACENC_METADATA_MODE: + if ((UINT)settings->userMetaDataMode != value) { + if (!(((INT)value >= 0) && ((INT)value <= 3))) { + err = AACENC_INVALID_CONFIG; + break; + } + settings->userMetaDataMode = value; + hAacEncoder->InitFlags |= AACENC_INIT_CONFIG; + } + break; + case AACENC_PEAK_BITRATE: + if (settings->userPeakBitrate != value) { + settings->userPeakBitrate = value; + hAacEncoder->InitFlags |= AACENC_INIT_CONFIG | AACENC_INIT_TRANSPORT; + } + break; + default: + err = AACENC_UNSUPPORTED_PARAMETER; + break; + } /* switch(param) */ + +bail: + return err; +} + +UINT aacEncoder_GetParam(const HANDLE_AACENCODER hAacEncoder, + const AACENC_PARAM param) { + UINT value = 0; + USER_PARAM *settings = &hAacEncoder->extParam; + + /* check encoder handle */ + if (hAacEncoder == NULL) { + goto bail; + } + + /* apply param value */ + switch (param) { + case AACENC_AOT: + value = (UINT)hAacEncoder->aacConfig.audioObjectType; + break; + case AACENC_BITRATE: + switch (hAacEncoder->aacConfig.bitrateMode) { + case AACENC_BR_MODE_CBR: + value = (UINT)hAacEncoder->aacConfig.bitRate; + break; + default: + value = (UINT)-1; + } + break; + case AACENC_BITRATEMODE: + value = (UINT)((hAacEncoder->aacConfig.bitrateMode != AACENC_BR_MODE_FF) + ? hAacEncoder->aacConfig.bitrateMode + : AACENC_BR_MODE_CBR); + break; + case AACENC_SAMPLERATE: + value = (UINT)hAacEncoder->coderConfig.extSamplingRate; + break; + case AACENC_CHANNELMODE: + if ((MODE_1 == hAacEncoder->aacConfig.channelMode) && + (hAacEncoder->aacConfig.syntaxFlags & AC_LD_MPS)) { + value = MODE_212; + } else { + value = (UINT)hAacEncoder->aacConfig.channelMode; + } + break; + case AACENC_BANDWIDTH: + value = (UINT)hAacEncoder->aacConfig.bandWidth; + break; + case AACENC_CHANNELORDER: + value = (UINT)hAacEncoder->aacConfig.channelOrder; + break; + case AACENC_AFTERBURNER: + value = (UINT)hAacEncoder->aacConfig.useRequant; + break; + case AACENC_GRANULE_LENGTH: + value = (UINT)hAacEncoder->aacConfig.framelength; + break; + case AACENC_SBR_RATIO: + value = isSbrActive(&hAacEncoder->aacConfig) + ? hAacEncoder->aacConfig.sbrRatio + : 0; + break; + case AACENC_SBR_MODE: + value = + (UINT)(hAacEncoder->aacConfig.syntaxFlags & AC_SBR_PRESENT) ? 1 : 0; + break; + case AACENC_TRANSMUX: + value = (UINT)settings->userTpType; + break; + case AACENC_SIGNALING_MODE: + value = (UINT)getSbrSignalingMode( + hAacEncoder->aacConfig.audioObjectType, settings->userTpType, + settings->userTpSignaling, hAacEncoder->aacConfig.sbrRatio); + break; + case AACENC_PROTECTION: + value = (UINT)settings->userTpProtection; + break; + case AACENC_HEADER_PERIOD: + value = (UINT)hAacEncoder->coderConfig.headerPeriod; + break; + case AACENC_AUDIOMUXVER: + value = (UINT)hAacEncoder->aacConfig.audioMuxVersion; + break; + case AACENC_TPSUBFRAMES: + value = (UINT)settings->userTpNsubFrames; + break; + case AACENC_ANCILLARY_BITRATE: + value = (UINT)hAacEncoder->aacConfig.anc_Rate; + break; + case AACENC_CONTROL_STATE: + value = (UINT)hAacEncoder->InitFlags; + break; + case AACENC_METADATA_MODE: + value = (hAacEncoder->metaDataAllowed == 0) + ? 0 + : (UINT)settings->userMetaDataMode; + break; + case AACENC_PEAK_BITRATE: + value = (UINT)-1; /* peak bitrate parameter is meaningless */ + if (((INT)hAacEncoder->extParam.userPeakBitrate != -1)) { + value = + (UINT)(fMax((INT)hAacEncoder->extParam.userPeakBitrate, + hAacEncoder->aacConfig + .bitRate)); /* peak bitrate parameter is in use */ + } + break; + + default: + // err = MPS_INVALID_PARAMETER; + break; + } /* switch(param) */ + +bail: + return value; +} + +AACENC_ERROR aacEncInfo(const HANDLE_AACENCODER hAacEncoder, + AACENC_InfoStruct *pInfo) { + AACENC_ERROR err = AACENC_OK; + + FDKmemclear(pInfo, sizeof(AACENC_InfoStruct)); + pInfo->confSize = 64; /* pre-initialize */ + + pInfo->maxOutBufBytes = ((hAacEncoder->nMaxAacChannels * 6144) + 7) >> 3; + pInfo->maxAncBytes = hAacEncoder->aacConfig.maxAncBytesPerAU; + pInfo->inBufFillLevel = + hAacEncoder->nSamplesRead / hAacEncoder->extParam.nChannels; + pInfo->inputChannels = hAacEncoder->extParam.nChannels; + pInfo->frameLength = + hAacEncoder->nSamplesToRead / hAacEncoder->extParam.nChannels; + pInfo->nDelay = hAacEncoder->nDelay; + pInfo->nDelayCore = hAacEncoder->nDelayCore; + + /* Get encoder configuration */ + if (aacEncGetConf(hAacEncoder, &pInfo->confSize, &pInfo->confBuf[0]) != + AAC_ENC_OK) { + err = AACENC_INIT_ERROR; + goto bail; + } +bail: + return err; +} |