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Diffstat (limited to 'libSBRenc/src/ton_corr.h')
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diff --git a/libSBRenc/src/ton_corr.h b/libSBRenc/src/ton_corr.h deleted file mode 100644 index 8c8425c..0000000 --- a/libSBRenc/src/ton_corr.h +++ /dev/null @@ -1,212 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -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. - - 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 ------------------------------------------------------------------------------------------------------------ */ - -/*! - \file - \brief General tonality correction detector module. -*/ -#ifndef _TON_CORR_EST_H -#define _TON_CORR_EST_H - -#include "sbr_encoder.h" -#include "mh_det.h" -#include "nf_est.h" -#include "invf_est.h" - - -#define MAX_NUM_PATCHES 6 -#define SCALE_NRGVEC 4 - -/** parameter set for one single patch */ -typedef struct { - INT sourceStartBand; /*!< first band in lowbands where to take the samples from */ - INT sourceStopBand; /*!< first band in lowbands which is not included in the patch anymore */ - INT guardStartBand; /*!< first band in highbands to be filled with zeros in order to - reduce interferences between patches */ - INT targetStartBand; /*!< first band in highbands to be filled with whitened lowband signal */ - INT targetBandOffs; /*!< difference between 'startTargetBand' and 'startSourceBand' */ - INT numBandsInPatch; /*!< number of consecutive bands in this one patch */ -} PATCH_PARAM; - - - - -typedef struct -{ - INT switchInverseFilt; /*!< Flag to enable dynamic adaption of invf. detection */ - INT noQmfChannels; - INT bufferLength; /*!< Length of the r and i buffers. */ - INT stepSize; /*!< Stride for the lpc estimate. */ - INT numberOfEstimates; /*!< The total number of estiamtes, available in the quotaMatrix.*/ - INT numberOfEstimatesPerFrame; /*!< The number of estimates per frame available in the quotaMatrix.*/ - INT lpcLength[2]; /*!< Segment length used for second order LPC analysis.*/ - INT nextSample; /*!< Where to start the LPC analysis of the current frame.*/ - INT move; /*!< How many estimates to move in the quotaMatrix, when buffering. */ - INT frameStartIndex; /*!< The start index for the current frame in the r and i buffers. */ - INT startIndexMatrix; /*!< The start index for the current frame in the quotaMatrix. */ - INT frameStartIndexInvfEst; /*!< The start index of the inverse filtering, not the same as the others, - dependent on what decoder is used (buffer opt, or no buffer opt). */ - INT prevTransientFlag; /*!< The transisent flag (from the transient detector) for the previous frame. */ - INT transientNextFrame; /*!< Flag to indicate that the transient will show up in the next frame. */ - INT transientPosOffset; /*!< An offset value to match the transient pos as calculated by the transient detector - with the actual position in the frame.*/ - - INT *signMatrix[MAX_NO_OF_ESTIMATES]; /*!< Matrix holding the sign of each channe, i.e. indicating in what - part of a QMF channel a possible sine is. */ - - FIXP_DBL *quotaMatrix[MAX_NO_OF_ESTIMATES];/*!< Matrix holding the quota values for all estimates, all channels. */ - - FIXP_DBL nrgVector[MAX_NO_OF_ESTIMATES]; /*!< Vector holding the averaged energies for every QMF band. */ - FIXP_DBL nrgVectorFreq[QMF_CHANNELS]; /*!< Vector holding the averaged energies for every QMF channel */ - - SCHAR indexVector[QMF_CHANNELS]; /*!< Index vector poINTing to the correct lowband channel, - when indexing a highband channel, -1 represents a guard band */ - PATCH_PARAM patchParam[MAX_NUM_PATCHES]; /*!< new parameter set for patching */ - INT guard; /*!< number of guardbands between every patch */ - INT shiftStartSb; /*!< lowest subband of source range to be included in the patches */ - INT noOfPatches; /*!< number of patches */ - - SBR_MISSING_HARMONICS_DETECTOR sbrMissingHarmonicsDetector; /*!< SBR_MISSING_HARMONICS_DETECTOR struct. */ - SBR_NOISE_FLOOR_ESTIMATE sbrNoiseFloorEstimate; /*!< SBR_NOISE_FLOOR_ESTIMATE struct. */ - SBR_INV_FILT_EST sbrInvFilt; /*!< SBR_INV_FILT_EST struct. */ -} -SBR_TON_CORR_EST; - -typedef SBR_TON_CORR_EST *HANDLE_SBR_TON_CORR_EST; - -void -FDKsbrEnc_TonCorrParamExtr(HANDLE_SBR_TON_CORR_EST hTonCorr, /*!< Handle to SBR_TON_CORR struct. */ - INVF_MODE* infVec, /*!< Vector where the inverse filtering levels will be stored. */ - FIXP_DBL * noiseLevels, /*!< Vector where the noise levels will be stored. */ - INT* missingHarmonicFlag, /*!< Flag set to one or zero, dependent on if any strong sines are missing.*/ - UCHAR* missingHarmonicsIndex, /*!< Vector indicating where sines are missing. */ - UCHAR* envelopeCompensation, /*!< Vector to store compensation values for the energies in. */ - const SBR_FRAME_INFO *frameInfo, /*!< Frame info struct, contains the time and frequency grid of the current frame.*/ - UCHAR* transientInfo, /*!< Transient info.*/ - UCHAR * freqBandTable, /*!< Frequency band tables for high-res.*/ - INT nSfb, /*!< Number of scalefactor bands for high-res. */ - XPOS_MODE xposType, /*!< Type of transposer used in the decoder.*/ - UINT sbrSyntaxFlags - ); - -INT -FDKsbrEnc_CreateTonCorrParamExtr(HANDLE_SBR_TON_CORR_EST hTonCorr, /*!< Pointer to handle to SBR_TON_CORR struct. */ - INT chan); /*!< Channel index, needed for mem allocation */ - -INT -FDKsbrEnc_InitTonCorrParamExtr(INT frameSize, /*!< Current SBR frame size. */ - HANDLE_SBR_TON_CORR_EST hTonCorr, /*!< Pointer to handle to SBR_TON_CORR struct. */ - HANDLE_SBR_CONFIG_DATA sbrCfg, /*!< Pointer to SBR configuration parameters. */ - INT timeSlots, /*!< Number of time-slots per frame */ - INT xposCtrl, /*!< Different patch modes. */ - INT ana_max_level, /*!< Maximum level of the adaptive noise. */ - INT noiseBands, /*!< Number of noise bands per octave. */ - INT noiseFloorOffset, /*!< Noise floor offset. */ - UINT useSpeechConfig /*!< Speech or music tuning. */ - ); - -void -FDKsbrEnc_DeleteTonCorrParamExtr(HANDLE_SBR_TON_CORR_EST hTonCorr); /*!< Handle to SBR_TON_CORR struct. */ - - -void -FDKsbrEnc_CalculateTonalityQuotas(HANDLE_SBR_TON_CORR_EST hTonCorr, - FIXP_DBL **sourceBufferReal, - FIXP_DBL **sourceBufferImag, - INT usb, - INT qmfScale /*!< sclefactor of QMF subsamples */ - ); - -INT -FDKsbrEnc_ResetTonCorrParamExtr(HANDLE_SBR_TON_CORR_EST hTonCorr, /*!< Handle to SBR_TON_CORR struct. */ - INT xposctrl, /*!< Different patch modes. */ - INT highBandStartSb, /*!< Start band of the SBR range. */ - UCHAR *v_k_master, /*!< Master frequency table from which all other table are derived.*/ - INT numMaster, /*!< Number of elements in the master table. */ - INT fs, /*!< Sampling frequency (of the SBR part). */ - UCHAR** freqBandTable, /*!< Frequency band table for low-res and high-res. */ - INT* nSfb, /*!< Number of frequency bands (hig-res and low-res). */ - INT noQmfChannels /*!< Number of QMF channels. */ - ); -#endif - |