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Diffstat (limited to 'libSBRenc/src/env_est.h')
| -rw-r--r-- | libSBRenc/src/env_est.h | 256 |
1 files changed, 127 insertions, 129 deletions
diff --git a/libSBRenc/src/env_est.h b/libSBRenc/src/env_est.h index e17a974..006f55b 100644 --- a/libSBRenc/src/env_est.h +++ b/libSBRenc/src/env_est.h @@ -1,74 +1,85 @@ - -/* ----------------------------------------------------------------------------------------------------------- +/* ----------------------------------------------------------------------------- Software License for The Fraunhofer FDK AAC Codec Library for Android -© Copyright 1995 - 2015 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 @@ -79,14 +90,22 @@ Am Wolfsmantel 33 www.iis.fraunhofer.de/amm amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ +----------------------------------------------------------------------------- */ + +/**************************** SBR encoder library ****************************** + + Author(s): + + Description: + +*******************************************************************************/ /*! \file - \brief Envelope estimation structs and prototypes + \brief Envelope estimation structs and prototypes $Revision: 92790 $ */ -#ifndef __ENV_EST_H -#define __ENV_EST_H +#ifndef ENV_EST_H +#define ENV_EST_H #include "sbr_def.h" #include "sbr_encoder.h" /* SBR econfig structs */ @@ -97,20 +116,18 @@ amm-info@iis.fraunhofer.de #include "code_env.h" #include "ton_corr.h" -typedef struct -{ - FIXP_DBL *rBuffer[QMF_MAX_TIME_SLOTS]; - FIXP_DBL *iBuffer[QMF_MAX_TIME_SLOTS]; +typedef struct { + FIXP_DBL *rBuffer[32]; + FIXP_DBL *iBuffer[32]; - FIXP_DBL *p_YBuffer; + FIXP_DBL *p_YBuffer; - FIXP_DBL *YBuffer[QMF_MAX_TIME_SLOTS]; - int YBufferScale[2]; + FIXP_DBL *YBuffer[32]; + int YBufferScale[2]; UCHAR envelopeCompensation[MAX_FREQ_COEFFS]; UCHAR pre_transient_info[2]; - int YBufferWriteOffset; int YBufferSzShift; int rBufferReadOffset; @@ -121,21 +138,18 @@ typedef struct int time_slots; int time_step; -} -SBR_EXTRACT_ENVELOPE; +} SBR_EXTRACT_ENVELOPE; typedef SBR_EXTRACT_ENVELOPE *HANDLE_SBR_EXTRACT_ENVELOPE; -struct ENV_CHANNEL -{ +struct ENV_CHANNEL { FAST_TRAN_DETECTOR sbrFastTransientDetector; SBR_TRANSIENT_DETECTOR sbrTransientDetector; SBR_CODE_ENVELOPE sbrCodeEnvelope; SBR_CODE_ENVELOPE sbrCodeNoiseFloor; SBR_EXTRACT_ENVELOPE sbrExtractEnvelope; - SBR_ENVELOPE_FRAME SbrEnvFrame; - SBR_TON_CORR_EST TonCorr; + SBR_TON_CORR_EST TonCorr; struct SBR_ENV_DATA encEnvData; @@ -146,80 +160,64 @@ typedef struct ENV_CHANNEL *HANDLE_ENV_CHANNEL; /************ Function Declarations ***************/ -INT -FDKsbrEnc_CreateExtractSbrEnvelope (HANDLE_SBR_EXTRACT_ENVELOPE hSbrCut, - INT channel - ,INT chInEl - ,UCHAR* dynamic_RAM - ); - - -INT -FDKsbrEnc_InitExtractSbrEnvelope ( - HANDLE_SBR_EXTRACT_ENVELOPE hSbr, - int no_cols, - int no_rows, - int start_index, - int time_slots, int time_step, int tran_off, - ULONG statesInitFlag - ,int chInEl - ,UCHAR* dynamic_RAM - ,UINT sbrSyntaxFlags - ); - -void FDKsbrEnc_deleteExtractSbrEnvelope (HANDLE_SBR_EXTRACT_ENVELOPE hSbrCut); +INT FDKsbrEnc_CreateExtractSbrEnvelope(HANDLE_SBR_EXTRACT_ENVELOPE hSbrCut, + INT channel, INT chInEl, + UCHAR *dynamic_RAM); + +INT FDKsbrEnc_InitExtractSbrEnvelope(HANDLE_SBR_EXTRACT_ENVELOPE hSbr, + int no_cols, int no_rows, int start_index, + int time_slots, int time_step, + int tran_off, ULONG statesInitFlag, + int chInEl, UCHAR *dynamic_RAM, + UINT sbrSyntaxFlags); + +void FDKsbrEnc_deleteExtractSbrEnvelope(HANDLE_SBR_EXTRACT_ENVELOPE hSbrCut); typedef struct { - FREQ_RES res[MAX_NUM_NOISE_VALUES]; - int maxQuantError; + FREQ_RES res[MAX_NUM_NOISE_VALUES]; + int maxQuantError; } SBR_FRAME_TEMP_DATA; typedef struct { - const SBR_FRAME_INFO *frame_info; - FIXP_DBL noiseFloor[MAX_NUM_NOISE_VALUES]; - SCHAR sfb_nrg_coupling[MAX_NUM_ENVELOPE_VALUES]; /* only used if stereomode = SWITCH_L_R_C */ - SCHAR sfb_nrg[MAX_NUM_ENVELOPE_VALUES]; - SCHAR noise_level_coupling[MAX_NUM_NOISE_VALUES]; /* only used if stereomode = SWITCH_L_R_C */ - SCHAR noise_level[MAX_NUM_NOISE_VALUES]; - UCHAR transient_info[3]; - UCHAR nEnvelopes; + const SBR_FRAME_INFO *frame_info; + FIXP_DBL noiseFloor[MAX_NUM_NOISE_VALUES]; + SCHAR sfb_nrg_coupling + [MAX_NUM_ENVELOPE_VALUES]; /* only used if stereomode = SWITCH_L_R_C */ + SCHAR sfb_nrg[MAX_NUM_ENVELOPE_VALUES]; + SCHAR noise_level_coupling + [MAX_NUM_NOISE_VALUES]; /* only used if stereomode = SWITCH_L_R_C */ + SCHAR noise_level[MAX_NUM_NOISE_VALUES]; + UCHAR transient_info[3]; + UCHAR nEnvelopes; } SBR_ENV_TEMP_DATA; /* - * Extract features from QMF data. Afterwards, the QMF data is not required anymore. + * Extract features from QMF data. Afterwards, the QMF data is not required + * anymore. */ -void -FDKsbrEnc_extractSbrEnvelope1( - HANDLE_SBR_CONFIG_DATA h_con, - HANDLE_SBR_HEADER_DATA sbrHeaderData, - HANDLE_SBR_BITSTREAM_DATA sbrBitstreamData, - HANDLE_ENV_CHANNEL h_envChan, - HANDLE_COMMON_DATA cmonData, - SBR_ENV_TEMP_DATA *eData, - SBR_FRAME_TEMP_DATA *fData - ); - +void FDKsbrEnc_extractSbrEnvelope1(HANDLE_SBR_CONFIG_DATA h_con, + HANDLE_SBR_HEADER_DATA sbrHeaderData, + HANDLE_SBR_BITSTREAM_DATA sbrBitstreamData, + HANDLE_ENV_CHANNEL h_envChan, + HANDLE_COMMON_DATA cmonData, + SBR_ENV_TEMP_DATA *eData, + SBR_FRAME_TEMP_DATA *fData); /* * Process the previously features extracted by FDKsbrEnc_extractSbrEnvelope1 * and create/encode SBR envelopes. */ -void -FDKsbrEnc_extractSbrEnvelope2( - HANDLE_SBR_CONFIG_DATA h_con, - HANDLE_SBR_HEADER_DATA sbrHeaderData, - HANDLE_PARAMETRIC_STEREO hParametricStereo, - HANDLE_SBR_BITSTREAM_DATA sbrBitstreamData, - HANDLE_ENV_CHANNEL sbrEnvChannel0, - HANDLE_ENV_CHANNEL sbrEnvChannel1, - HANDLE_COMMON_DATA cmonData, - SBR_ENV_TEMP_DATA *eData, - SBR_FRAME_TEMP_DATA *fData, - int clearOutput - ); - -INT -FDKsbrEnc_GetEnvEstDelay(HANDLE_SBR_EXTRACT_ENVELOPE hSbr); +void FDKsbrEnc_extractSbrEnvelope2(HANDLE_SBR_CONFIG_DATA h_con, + HANDLE_SBR_HEADER_DATA sbrHeaderData, + HANDLE_PARAMETRIC_STEREO hParametricStereo, + HANDLE_SBR_BITSTREAM_DATA sbrBitstreamData, + HANDLE_ENV_CHANNEL sbrEnvChannel0, + HANDLE_ENV_CHANNEL sbrEnvChannel1, + HANDLE_COMMON_DATA cmonData, + SBR_ENV_TEMP_DATA *eData, + SBR_FRAME_TEMP_DATA *fData, int clearOutput); + +INT FDKsbrEnc_GetEnvEstDelay(HANDLE_SBR_EXTRACT_ENVELOPE hSbr); #endif |