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Diffstat (limited to 'libSBRdec/src/psdec.h')
| -rw-r--r-- | libSBRdec/src/psdec.h | 503 |
1 files changed, 239 insertions, 264 deletions
diff --git a/libSBRdec/src/psdec.h b/libSBRdec/src/psdec.h index 3dbc76d..b6d9a12 100644 --- a/libSBRdec/src/psdec.h +++ b/libSBRdec/src/psdec.h @@ -1,74 +1,85 @@ - -/* ----------------------------------------------------------------------------------------------------------- +/* ----------------------------------------------------------------------------- Software License for The Fraunhofer FDK AAC Codec Library for Android -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. +© 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. +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: +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 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 +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. +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. +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." +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. +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. +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. +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 @@ -79,18 +90,27 @@ Am Wolfsmantel 33 www.iis.fraunhofer.de/amm amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ +----------------------------------------------------------------------------- */ + +/**************************** SBR decoder library ****************************** + + Author(s): + + Description: + +*******************************************************************************/ /*! \file - \brief Sbr decoder + \brief Sbr decoder */ -#ifndef __PSDEC_H -#define __PSDEC_H +#ifndef PSDEC_H +#define PSDEC_H #include "sbrdecoder.h" +#include "FDK_hybrid.h" - +#include "FDK_decorrelate.h" /* This PS decoder implements the baseline version. So it always uses the */ /* hybrid filter structure for 20 stereo bands and does not implemet IPD/OPD */ @@ -99,254 +119,209 @@ amm-info@iis.fraunhofer.de /* is used in the bitstream for IIS/ICC the decoded parameters are mapped to */ /* 20 stereo bands. */ - #include "FDK_bitstream.h" -#include "psdec_hybrid.h" - -#define SCAL_HEADROOM ( 2 ) - -#define PS_EXTENSION_SIZE_BITS ( 4 ) -#define PS_EXTENSION_ESC_COUNT_BITS ( 8 ) - -#define NO_QMF_CHANNELS ( 64 ) -#define MAX_NUM_COL ( 32 ) - - - #define NO_QMF_BANDS_HYBRID20 ( 3 ) - #define NO_SUB_QMF_CHANNELS ( 12 ) - - #define NRG_INT_COEFF ( 0.75f ) - #define INT_FILTER_COEFF (FL2FXCONST_DBL( 1.0f - NRG_INT_COEFF )) - #define PEAK_DECAY_FACTOR (FL2FXCONST_DBL( 0.765928338364649f )) - #define TRANSIENT_IMPACT_FACTOR (FL2FXCONST_DBL( 2.0 / 3.0 )) - - #define NO_SERIAL_ALLPASS_LINKS ( 3 ) - #define MAX_NO_PS_ENV ( 4 + 1 ) /* +1 needed for VAR_BORDER */ +#define SCAL_HEADROOM (2) - #define MAX_DELAY_BUFFER_SIZE ( 14 ) - #define NO_DELAY_BUFFER_BANDS ( 35 ) +#define PS_EXTENSION_SIZE_BITS (4) +#define PS_EXTENSION_ESC_COUNT_BITS (8) - #define NO_HI_RES_BINS ( 34 ) - #define NO_MID_RES_BINS ( 20 ) - #define NO_LOW_RES_BINS ( 10 ) +#define NO_QMF_CHANNELS (64) +#define MAX_NUM_COL (32) - #define FIRST_DELAY_SB ( 23 ) - #define NO_SAMPLE_DELAY_ALLPASS ( 2 ) - #define NO_DELAY_LENGTH_VECTORS ( 12 ) /* d(m): d(0)=3 + d(1)=4 + d(2)=5 */ +#define NO_QMF_BANDS_HYBRID20 (3) +#define NO_SUB_QMF_CHANNELS (12) +#define HYBRID_FILTER_DELAY (6) - #define NO_HI_RES_IID_BINS ( NO_HI_RES_BINS ) - #define NO_HI_RES_ICC_BINS ( NO_HI_RES_BINS ) +#define MAX_NO_PS_ENV (4 + 1) /* +1 needed for VAR_BORDER */ - #define NO_MID_RES_IID_BINS ( NO_MID_RES_BINS ) - #define NO_MID_RES_ICC_BINS ( NO_MID_RES_BINS ) +#define NO_HI_RES_BINS (34) +#define NO_MID_RES_BINS (20) +#define NO_LOW_RES_BINS (10) - #define NO_LOW_RES_IID_BINS ( NO_LOW_RES_BINS ) - #define NO_LOW_RES_ICC_BINS ( NO_LOW_RES_BINS ) +#define NO_HI_RES_IID_BINS (NO_HI_RES_BINS) +#define NO_HI_RES_ICC_BINS (NO_HI_RES_BINS) - #define SUBQMF_GROUPS ( 10 ) - #define QMF_GROUPS ( 12 ) +#define NO_MID_RES_IID_BINS (NO_MID_RES_BINS) +#define NO_MID_RES_ICC_BINS (NO_MID_RES_BINS) - #define SUBQMF_GROUPS_HI_RES ( 32 ) - #define QMF_GROUPS_HI_RES ( 18 ) +#define NO_LOW_RES_IID_BINS (NO_LOW_RES_BINS) +#define NO_LOW_RES_ICC_BINS (NO_LOW_RES_BINS) - #define NO_IID_GROUPS ( SUBQMF_GROUPS + QMF_GROUPS ) - #define NO_IID_GROUPS_HI_RES ( SUBQMF_GROUPS_HI_RES + QMF_GROUPS_HI_RES ) +#define SUBQMF_GROUPS (10) +#define QMF_GROUPS (12) - #define NO_IID_STEPS ( 7 ) /* 1 .. + 7 */ - #define NO_IID_STEPS_FINE ( 15 ) /* 1 .. +15 */ - #define NO_ICC_STEPS ( 8 ) /* 0 .. + 7 */ +//#define SUBQMF_GROUPS_HI_RES ( 32 ) +//#define QMF_GROUPS_HI_RES ( 18 ) - #define NO_IID_LEVELS ( 2 * NO_IID_STEPS + 1 ) /* - 7 .. + 7 */ - #define NO_IID_LEVELS_FINE ( 2 * NO_IID_STEPS_FINE + 1 ) /* -15 .. +15 */ - #define NO_ICC_LEVELS ( NO_ICC_STEPS ) /* 0 .. + 7 */ +#define NO_IID_GROUPS (SUBQMF_GROUPS + QMF_GROUPS) +//#define NO_IID_GROUPS_HI_RES ( SUBQMF_GROUPS_HI_RES + +// QMF_GROUPS_HI_RES ) - #define FIXP_SQRT05 ((FIXP_DBL)0x5a827980) /* 1/SQRT2 */ +#define NO_IID_STEPS (7) /* 1 .. + 7 */ +#define NO_IID_STEPS_FINE (15) /* 1 .. +15 */ +#define NO_ICC_STEPS (8) /* 0 .. + 7 */ - struct PS_DEC_COEFFICIENTS { +#define NO_IID_LEVELS (2 * NO_IID_STEPS + 1) /* - 7 .. + 7 */ +#define NO_IID_LEVELS_FINE (2 * NO_IID_STEPS_FINE + 1) /* -15 .. +15 */ +#define NO_ICC_LEVELS (NO_ICC_STEPS) /* 0 .. + 7 */ - FIXP_DBL H11r[NO_IID_GROUPS]; /*!< coefficients of the sub-subband groups */ - FIXP_DBL H12r[NO_IID_GROUPS]; /*!< coefficients of the sub-subband groups */ - FIXP_DBL H21r[NO_IID_GROUPS]; /*!< coefficients of the sub-subband groups */ - FIXP_DBL H22r[NO_IID_GROUPS]; /*!< coefficients of the sub-subband groups */ +#define FIXP_SQRT05 ((FIXP_DBL)0x5a827980) /* 1/SQRT2 */ - FIXP_DBL DeltaH11r[NO_IID_GROUPS]; /*!< coefficients of the sub-subband groups */ - FIXP_DBL DeltaH12r[NO_IID_GROUPS]; /*!< coefficients of the sub-subband groups */ - FIXP_DBL DeltaH21r[NO_IID_GROUPS]; /*!< coefficients of the sub-subband groups */ - FIXP_DBL DeltaH22r[NO_IID_GROUPS]; /*!< coefficients of the sub-subband groups */ +struct PS_DEC_COEFFICIENTS { + FIXP_DBL H11r[NO_IID_GROUPS]; /*!< coefficients of the sub-subband groups */ + FIXP_DBL H12r[NO_IID_GROUPS]; /*!< coefficients of the sub-subband groups */ + FIXP_DBL H21r[NO_IID_GROUPS]; /*!< coefficients of the sub-subband groups */ + FIXP_DBL H22r[NO_IID_GROUPS]; /*!< coefficients of the sub-subband groups */ - SCHAR aaIidIndexMapped[MAX_NO_PS_ENV][NO_HI_RES_IID_BINS]; /*!< The mapped IID index for all envelopes and all IID bins */ - SCHAR aaIccIndexMapped[MAX_NO_PS_ENV][NO_HI_RES_ICC_BINS]; /*!< The mapped ICC index for all envelopes and all ICC bins */ + FIXP_DBL + DeltaH11r[NO_IID_GROUPS]; /*!< coefficients of the sub-subband groups */ + FIXP_DBL + DeltaH12r[NO_IID_GROUPS]; /*!< coefficients of the sub-subband groups */ + FIXP_DBL + DeltaH21r[NO_IID_GROUPS]; /*!< coefficients of the sub-subband groups */ + FIXP_DBL + DeltaH22r[NO_IID_GROUPS]; /*!< coefficients of the sub-subband groups */ - }; - - - - -typedef enum { - ppt_none = 0, - ppt_mpeg = 1, - ppt_drm = 2 -} PS_PAYLOAD_TYPE; + SCHAR + aaIidIndexMapped[MAX_NO_PS_ENV] + [NO_HI_RES_IID_BINS]; /*!< The mapped IID index for all + envelopes and all IID bins */ + SCHAR + aaIccIndexMapped[MAX_NO_PS_ENV] + [NO_HI_RES_ICC_BINS]; /*!< The mapped ICC index for all + envelopes and all ICC bins */ +}; +typedef enum { ppt_none = 0, ppt_mpeg = 1, ppt_drm = 2 } PS_PAYLOAD_TYPE; typedef struct { - UCHAR bPsHeaderValid; /*!< set if new header is available from bitstream */ - - UCHAR bEnableIid; /*!< One bit denoting the presence of IID parameters */ - UCHAR bEnableIcc; /*!< One bit denoting the presence of ICC parameters */ - UCHAR bEnableExt; /*!< The PS extension layer is enabled using the enable_ext bit. - If it is set to %1 the IPD and OPD parameters are sent. - If it is disabled, i.e. %0, the extension layer is skipped. */ - - UCHAR modeIid; /*!< The configuration of IID parameters (number of bands and - quantisation grid, iid_quant) is determined by iid_mode. */ - UCHAR modeIcc; /*!< The configuration of Inter-channel Coherence parameters - (number of bands and quantisation grid) is determined by - icc_mode. */ - - UCHAR freqResIid; /*!< 0=low, 1=mid or 2=high frequency resolution for iid */ - UCHAR freqResIcc; /*!< 0=low, 1=mid or 2=high frequency resolution for icc */ - - UCHAR bFineIidQ; /*!< Use fine Iid quantisation. */ - - UCHAR bFrameClass; /*!< The frame_class bit determines whether the parameter - positions of the current frame are uniformly spaced - accross the frame or they are defined using the positions - described by border_position. */ - - UCHAR noEnv; /*!< The number of envelopes per frame */ - UCHAR aEnvStartStop[MAX_NO_PS_ENV+1]; /*!< In case of variable parameter spacing the parameter - positions are determined by border_position */ - - SCHAR abIidDtFlag[MAX_NO_PS_ENV]; /*!< Deltacoding time/freq flag for IID, 0 => freq */ - SCHAR abIccDtFlag[MAX_NO_PS_ENV]; /*!< Deltacoding time/freq flag for ICC, 0 => freq */ - - SCHAR aaIidIndex[MAX_NO_PS_ENV][NO_HI_RES_IID_BINS]; /*!< The IID index for all envelopes and all IID bins */ - SCHAR aaIccIndex[MAX_NO_PS_ENV][NO_HI_RES_ICC_BINS]; /*!< The ICC index for all envelopes and all ICC bins */ + UCHAR bPsHeaderValid; /*!< set if new header is available from bitstream */ + + UCHAR bEnableIid; /*!< One bit denoting the presence of IID parameters */ + UCHAR bEnableIcc; /*!< One bit denoting the presence of ICC parameters */ + UCHAR bEnableExt; /*!< The PS extension layer is enabled using the enable_ext + bit. If it is set to %1 the IPD and OPD parameters are + sent. If it is disabled, i.e. %0, the extension layer is + skipped. */ + + UCHAR + modeIid; /*!< The configuration of IID parameters (number of bands and + quantisation grid, iid_quant) is determined by iid_mode. */ + UCHAR modeIcc; /*!< The configuration of Inter-channel Coherence parameters + (number of bands and quantisation grid) is determined by + icc_mode. */ + + UCHAR freqResIid; /*!< 0=low, 1=mid or 2=high frequency resolution for iid */ + UCHAR freqResIcc; /*!< 0=low, 1=mid or 2=high frequency resolution for icc */ + + UCHAR bFineIidQ; /*!< Use fine Iid quantisation. */ + + UCHAR bFrameClass; /*!< The frame_class bit determines whether the parameter + positions of the current frame are uniformly spaced + accross the frame or they are defined using the + positions described by border_position. + */ + + UCHAR noEnv; /*!< The number of envelopes per frame */ + UCHAR aEnvStartStop[MAX_NO_PS_ENV + 1]; /*!< In case of variable parameter + spacing the parameter positions are + determined by border_position */ + + SCHAR abIidDtFlag[MAX_NO_PS_ENV]; /*!< Deltacoding time/freq flag for IID, 0 + => freq */ + SCHAR abIccDtFlag[MAX_NO_PS_ENV]; /*!< Deltacoding time/freq flag for ICC, 0 + => freq */ + + SCHAR + aaIidIndex[MAX_NO_PS_ENV] + [NO_HI_RES_IID_BINS]; /*!< The IID index for all envelopes and + all IID bins */ + SCHAR + aaIccIndex[MAX_NO_PS_ENV] + [NO_HI_RES_ICC_BINS]; /*!< The ICC index for all envelopes and + all ICC bins */ } MPEG_PS_BS_DATA; - - struct PS_DEC { - SCHAR noSubSamples; SCHAR noChannels; - SCHAR procFrameBased; /*!< Helper to detected switching from frame based to slot based - processing */ + SCHAR procFrameBased; /*!< Helper to detected switching from frame based to + slot based processing + */ - PS_PAYLOAD_TYPE bPsDataAvail[(1)+1]; /*!< set if new data available from bitstream */ - UCHAR psDecodedPrv; /*!< set if PS has been processed in the last frame */ + PS_PAYLOAD_TYPE + bPsDataAvail[(1) + 1]; /*!< set if new data available from bitstream */ + UCHAR psDecodedPrv; /*!< set if PS has been processed in the last frame */ /* helpers for frame delay line */ - UCHAR bsLastSlot; /*!< Index of last read slot. */ - UCHAR bsReadSlot; /*!< Index of current read slot for additional delay. */ - UCHAR processSlot; /*!< Index of current slot for processing (need for add. delay). */ - - - INT rescal; - INT sf_IntBuffer; - - union { /* Bitstream data */ - MPEG_PS_BS_DATA mpeg; /*!< Struct containing all MPEG specific PS data from bitstream. */ - } bsData[(1)+1]; - - shouldBeUnion { /* Static data */ + UCHAR bsLastSlot; /*!< Index of last read slot. */ + UCHAR bsReadSlot; /*!< Index of current read slot for additional delay. */ + UCHAR processSlot; /*!< Index of current slot for processing (need for add. + delay). */ + + union { /* Bitstream data */ + MPEG_PS_BS_DATA + mpeg; /*!< Struct containing all MPEG specific PS data from bitstream. + */ + } bsData[(1) + 1]; + + shouldBeUnion { /* Static data */ struct { - SCHAR aIidPrevFrameIndex[NO_HI_RES_IID_BINS]; /*!< The IID index for previous frame */ - SCHAR aIccPrevFrameIndex[NO_HI_RES_ICC_BINS]; /*!< The ICC index for previous frame */ - - UCHAR delayBufIndex; /*!< Pointer to where the latest sample is in buffer */ - UCHAR noSampleDelay; /*!< How many QMF samples delay is used. */ - UCHAR lastUsb; /*!< uppermost WMF delay band of last frame */ - - UCHAR aDelayRBufIndexSer[NO_SERIAL_ALLPASS_LINKS]; /*!< Delay buffer for reverb filter */ - UCHAR aDelayBufIndexDelayQmf[NO_QMF_CHANNELS-FIRST_DELAY_SB]; /*!< Delay buffer for ICC group 20 & 21 */ - - SCHAR scaleFactorPsDelayBuffer; /*!< Scale factor for ps delay buffer */ - - /* hybrid filter bank delay lines */ - FIXP_DBL aaQmfDelayBufReal[(NO_QMF_CHANNELS-FIRST_DELAY_SB) + (MAX_DELAY_BUFFER_SIZE-1)*(NO_DELAY_BUFFER_BANDS-FIRST_DELAY_SB)]; - FIXP_DBL aaQmfDelayBufImag[(NO_QMF_CHANNELS-FIRST_DELAY_SB) + (MAX_DELAY_BUFFER_SIZE-1)*(NO_DELAY_BUFFER_BANDS-FIRST_DELAY_SB)]; - - FIXP_DBL *pAaRealDelayBufferQmf[MAX_DELAY_BUFFER_SIZE]; /*!< Real part delay buffer */ - FIXP_DBL *pAaImagDelayBufferQmf[MAX_DELAY_BUFFER_SIZE]; /*!< Imaginary part delay buffer */ - - FIXP_DBL aaRealDelayBufferQmf[NO_SAMPLE_DELAY_ALLPASS][FIRST_DELAY_SB]; /*!< Real part delay buffer */ - FIXP_DBL aaImagDelayBufferQmf[NO_SAMPLE_DELAY_ALLPASS][FIRST_DELAY_SB]; /*!< Imaginary part delay buffer*/ - - FIXP_DBL aaRealDelayBufferSubQmf[NO_SAMPLE_DELAY_ALLPASS][NO_SUB_QMF_CHANNELS]; /*!< Real part delay buffer */ - FIXP_DBL aaImagDelayBufferSubQmf[NO_SAMPLE_DELAY_ALLPASS][NO_SUB_QMF_CHANNELS]; /*!< Imaginary part delay buffer */ - - FIXP_DBL aaaRealDelayRBufferSerQmf[FIRST_DELAY_SB][NO_DELAY_LENGTH_VECTORS]; /*!< Real part delay buffer */ - FIXP_DBL aaaImagDelayRBufferSerQmf[FIRST_DELAY_SB][NO_DELAY_LENGTH_VECTORS]; /*!< Imaginary part delay buffer */ - - FIXP_DBL aaaRealDelayRBufferSerSubQmf[NO_SUB_QMF_CHANNELS][NO_DELAY_LENGTH_VECTORS]; /*!< Real part delay buffer */ - FIXP_DBL aaaImagDelayRBufferSerSubQmf[NO_SUB_QMF_CHANNELS][NO_DELAY_LENGTH_VECTORS]; /*!< Imaginary part delay buffer */ - - HYBRID hybrid; /*!< hybrid filter bank struct 1 or 2. */ - - FIXP_DBL aPrevNrgBin[NO_MID_RES_BINS]; /*!< energy of previous frame */ - FIXP_DBL aPrevPeakDiffBin[NO_MID_RES_BINS]; /*!< peak difference of previous frame */ - FIXP_DBL aPeakDecayFastBin[NO_MID_RES_BINS]; /*!< Saved max. peak decay value per bin */ - SCHAR aPowerPrevScal[NO_MID_RES_BINS]; /*!< Last power value (each bin) of previous frame */ - - FIXP_DBL h11rPrev[NO_IID_GROUPS]; /*!< previous calculated h(xy) coefficients */ - FIXP_DBL h12rPrev[NO_IID_GROUPS]; /*!< previous calculated h(xy) coefficients */ - FIXP_DBL h21rPrev[NO_IID_GROUPS]; /*!< previous calculated h(xy) coefficients */ - FIXP_DBL h22rPrev[NO_IID_GROUPS]; /*!< previous calculated h(xy) coefficients */ - - PS_DEC_COEFFICIENTS coef; /*!< temporal coefficients (reusable scratch memory) */ + SCHAR aIidPrevFrameIndex[NO_HI_RES_IID_BINS]; /*!< The IID index for + previous frame */ + SCHAR aIccPrevFrameIndex[NO_HI_RES_ICC_BINS]; /*!< The ICC index for + previous frame */ + UCHAR lastUsb; /*!< uppermost WMF delay band of last frame */ + + FIXP_DBL pHybridAnaStatesLFdmx + [2 * 13 * NO_QMF_BANDS_HYBRID20]; /*!< Memory used in hybrid analysis + for filter states. */ + FDK_ANA_HYB_FILTER hybridAnalysis; + FDK_SYN_HYB_FILTER hybridSynthesis[2]; + + DECORR_DEC apDecor; /*!< Decorrelator instance. */ + FIXP_DBL decorrBufferCplx[(2 * ((825) + (373)))]; + + FIXP_DBL h11rPrev[NO_IID_GROUPS]; /*!< previous calculated h(xy) + coefficients */ + FIXP_DBL h12rPrev[NO_IID_GROUPS]; /*!< previous calculated h(xy) + coefficients */ + FIXP_DBL h21rPrev[NO_IID_GROUPS]; /*!< previous calculated h(xy) + coefficients */ + FIXP_DBL h22rPrev[NO_IID_GROUPS]; /*!< previous calculated h(xy) + coefficients */ + + PS_DEC_COEFFICIENTS + *pCoef; /*!< temporal coefficients are on reusable scratch memory */ } mpeg; - - } specificTo; - - + } + specificTo; }; typedef struct PS_DEC *HANDLE_PS_DEC; - int CreatePsDec(HANDLE_PS_DEC *h_PS_DEC, int aacSamplesPerFrame); int DeletePsDec(HANDLE_PS_DEC *h_PS_DEC); -void -scalFilterBankValues( HANDLE_PS_DEC h_ps_d, /* parametric stereo decoder handle */ - FIXP_DBL **fixpQmfReal, /* qmf filterbank values */ - FIXP_DBL **fixpQmfImag, /* qmf filterbank values */ - int lsb, /* sbr start subband */ - int scaleFactorLowBandSplitLow, - int scaleFactorLowBandSplitHigh, - SCHAR *scaleFactorLowBand_lb, - SCHAR *scaleFactorLowBand_hb, - int scaleFactorHighBands, - INT *scaleFactorHighBand, - INT noCols); - -void -rescalFilterBankValues( HANDLE_PS_DEC h_ps_d, /* parametric stereo decoder handle */ - FIXP_DBL **QmfBufferReal, /* qmf filterbank values */ - FIXP_DBL **QmfBufferImag, /* qmf filterbank values */ - int lsb, /* sbr start subband */ - INT noCols); - - -void -initSlotBasedRotation( HANDLE_PS_DEC h_ps_d, - int env, - int usb); - -void -ApplyPsSlot( HANDLE_PS_DEC h_ps_d, /* parametric stereo decoder handle */ - FIXP_DBL **rIntBufferLeft, /* real values of left qmf timeslot */ - FIXP_DBL **iIntBufferLeft, /* imag values of left qmf timeslot */ - FIXP_DBL *rIntBufferRight, /* real values of right qmf timeslot */ - FIXP_DBL *iIntBufferRight); /* imag values of right qmf timeslot */ - - - -#endif /* __PSDEC_H */ +void PreparePsProcessing(HANDLE_PS_DEC h_ps_d, + const FIXP_DBL *const *const rIntBufferLeft, + const FIXP_DBL *const *const iIntBufferLeft, + const int scaleFactorLowBand); + +void initSlotBasedRotation(HANDLE_PS_DEC h_ps_d, int env, int usb); + +void ApplyPsSlot( + HANDLE_PS_DEC h_ps_d, /* parametric stereo decoder handle */ + FIXP_DBL **rIntBufferLeft, /* real values of left qmf timeslot */ + FIXP_DBL **iIntBufferLeft, /* imag values of left qmf timeslot */ + FIXP_DBL *rIntBufferRight, /* real values of right qmf timeslot */ + FIXP_DBL *iIntBufferRight, /* imag values of right qmf timeslot */ + const int scaleFactorLowBand_no_ov, const int scaleFactorLowBand, + const int scaleFactorHighBand, const int lsb, const int usb); + +#endif /* PSDEC_H */ |