Remove FDK-AAC

1 files changed, 0 insertions, 319 deletions

diff --git a/libSBRdec/src/env_extr.h b/libSBRdec/src/env_extr.h
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-
-/* -----------------------------------------------------------------------------------------------------------
-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  Envelope extraction prototypes  
-*/
-
-#ifndef __ENVELOPE_EXTRACTION_H
-#define __ENVELOPE_EXTRACTION_H
-
-#include "sbrdecoder.h"
-
-#include "FDK_bitstream.h"
-#include "lpp_tran.h"
-
-#include "psdec.h"
-
-#define ENV_EXP_FRACT 0
-/*!< Shift raw envelope data to support fractional numbers.
-  Can be set to 8 instead of 0 to enhance accuracy during concealment.
-  This is not required for conformance and #requantizeEnvelopeData() will
-  become more expensive.
-*/
-
-#define EXP_BITS 6
-/*!< Size of exponent-part of a pseudo float envelope value (should be at least 6).
-  The remaining bits in each word are used for the mantissa (should be at least 10).
-  This format is used in the arrays iEnvelope[] and sbrNoiseFloorLevel[]
-  in the FRAME_DATA struct which must fit in a certain part of the output buffer
-  (See buffer management in sbr_dec.cpp).
-  Exponents and mantissas could also be stored in separate arrays.
-  Accessing the exponent or the mantissa would be simplified and the masks #MASK_E
-  resp. #MASK_M would   no longer be required.
-*/
-
-#define MASK_M (((1 << (FRACT_BITS - EXP_BITS)) - 1) << EXP_BITS)  /*!< Mask for extracting the mantissa of a pseudo float envelope value */
-#define MASK_E ((1 << EXP_BITS) - 1)           /*!< Mask for extracting the exponent of a pseudo float envelope value */
-
-#define SIGN_EXT ( ((SCHAR)-1) ^ MASK_E)        /*!< a CHAR-constant with all bits above our sign-bit set */
-#define ROUNDING ( (FIXP_SGL)(1<<(EXP_BITS-1)) ) /*!< 0.5-offset for rounding the mantissa of a pseudo-float envelope value */
-#define NRG_EXP_OFFSET  16                     /*!< Will be added to the reference energy's exponent to prevent negative numbers */
-#define NOISE_EXP_OFFSET  38                   /*!< Will be added to the noise level exponent to prevent negative numbers */
-
-typedef enum
-{
-  HEADER_NOT_PRESENT,
-  HEADER_OK,
-  HEADER_RESET
-}
-SBR_HEADER_STATUS;
-
-typedef enum
-{
-  SBR_NOT_INITIALIZED,
-  UPSAMPLING,
-  SBR_HEADER,
-  SBR_ACTIVE
-}
-SBR_SYNC_STATE;
-
-
-typedef enum
-{
-  COUPLING_OFF = 0,
-  COUPLING_LEVEL,
-  COUPLING_BAL
-}
-COUPLING_MODE;
-
-typedef struct
-{
-  UCHAR nSfb[2];           /*!< Number of SBR-bands for low and high freq-resolution */
-  UCHAR nNfb;              /*!< Actual number of noise bands to read from the bitstream*/
-  UCHAR numMaster;         /*!< Number of SBR-bands in v_k_master */
-  UCHAR lowSubband;        /*!< QMF-band where SBR frequency range starts */
-  UCHAR highSubband;       /*!< QMF-band where SBR frequency range ends */
-  UCHAR limiterBandTable[MAX_NUM_LIMITERS+1]; /*!< Limiter band table. */
-  UCHAR noLimiterBands;    /*!< Number of limiter bands. */
-  UCHAR nInvfBands;        /*!< Number of bands for inverse filtering */
-  UCHAR *freqBandTable[2]; /*!< Pointers to freqBandTableLo and freqBandTableHi */
-  UCHAR freqBandTableLo[MAX_FREQ_COEFFS/2+1];
-                                   /*!< Mapping of SBR bands to QMF bands for low frequency resolution */
-  UCHAR freqBandTableHi[MAX_FREQ_COEFFS+1];
-                                   /*!< Mapping of SBR bands to QMF bands for high frequency resolution */
-  UCHAR freqBandTableNoise[MAX_NOISE_COEFFS+1];
-                                   /*!< Mapping of SBR noise bands to QMF bands */
-  UCHAR v_k_master[MAX_FREQ_COEFFS+1];
-                                   /*!< Master BandTable which freqBandTable is derived from */
-}
-FREQ_BAND_DATA;
-
-typedef FREQ_BAND_DATA *HANDLE_FREQ_BAND_DATA;
-
-#define SBRDEC_ELD_GRID        1
-#define SBRDEC_SYNTAX_SCAL     2
-#define SBRDEC_SYNTAX_USAC     4
-#define SBRDEC_SYNTAX_RSVD50   8
-#define SBRDEC_LOW_POWER      16  /* Flag indicating that Low Power QMF mode shall be used. */
-#define SBRDEC_PS_DECODED     32  /* Flag indicating that PS was decoded and rendered. */
-#define SBRDEC_LD_MPS_QMF    512  /* Flag indicating that the LD-MPS QMF shall be used. */
-
-#define SBRDEC_HDR_STAT_RESET  1
-#define SBRDEC_HDR_STAT_UPDATE 2
-
-typedef struct {
-  UCHAR ampResolution;       /*!< Amplitude resolution of envelope values (0: 1.5dB, 1: 3dB) */
-  UCHAR xover_band;          /*!< Start index in #v_k_master[] used for dynamic crossover frequency */
-  UCHAR sbr_preprocessing;   /*!< SBR prewhitening flag. */
-} SBR_HEADER_DATA_BS_INFO;
-
-typedef struct {
-  /* Changes in these variables causes a reset of the decoder */
-  UCHAR startFreq;           /*!< Index for SBR start frequency */
-  UCHAR stopFreq;            /*!< Index for SBR highest frequency */
-  UCHAR freqScale;           /*!< 0: linear scale,  1-3 logarithmic scales */
-  UCHAR alterScale;          /*!< Flag for coarser frequency resolution */
-  UCHAR noise_bands;         /*!< Noise bands per octave, read from bitstream*/
-
-  /* don't require reset */
-  UCHAR limiterBands;        /*!< Index for number of limiter bands per octave */
-  UCHAR limiterGains;        /*!< Index to select gain limit */
-  UCHAR interpolFreq;        /*!< Select gain calculation method (1: per QMF channel, 0: per SBR band) */
-  UCHAR smoothingLength;     /*!< Smoothing of gains over time (0: on  1: off) */
-
-} SBR_HEADER_DATA_BS;
-
-typedef struct
-{
-  SBR_SYNC_STATE syncState;    /*!< The current initialization status of the header */
-
-  UCHAR status;                /*!< Flags field used for signaling a reset right before the processing starts and an update from config (e.g. ASC). */
-  UCHAR frameErrorFlag;        /*!< Frame data valid flag. CAUTION: This variable will be overwritten by the flag stored in the element structure.
-                                    This is necessary because of the frame delay. There it might happen that different slots use the same header. */
-  UCHAR numberTimeSlots;       /*!< AAC: 16,15 */
-  UCHAR numberOfAnalysisBands; /*!< Number of QMF analysis bands */
-  UCHAR timeStep;              /*!< Time resolution of SBR in QMF-slots */
-  UINT  sbrProcSmplRate;       /*!< SBR processing sampling frequency (!= OutputSamplingRate)
-                                     (always: CoreSamplingRate * UpSamplingFactor; even in single rate mode) */
-
-  SBR_HEADER_DATA_BS      bs_data;  /*!< current SBR header. */
-  SBR_HEADER_DATA_BS_INFO bs_info;  /*!< SBR info. */
-
-  FREQ_BAND_DATA freqBandData;  /*!< Pointer to struct #FREQ_BAND_DATA */
-}
-SBR_HEADER_DATA;
-
-typedef SBR_HEADER_DATA *HANDLE_SBR_HEADER_DATA;
-
-
-typedef struct
-{
-  UCHAR frameClass;               /*!< Select grid type */
-  UCHAR nEnvelopes;               /*!< Number of envelopes */
-  UCHAR borders[MAX_ENVELOPES+1]; /*!< Envelope borders (in SBR-timeslots, e.g. mp3PRO: 0..11) */
-  UCHAR freqRes[MAX_ENVELOPES];   /*!< Frequency resolution for each envelope (0=low, 1=high) */
-  SCHAR  tranEnv;                 /*!< Transient envelope, -1 if none */
-  UCHAR nNoiseEnvelopes;          /*!< Number of noise envelopes */
-  UCHAR bordersNoise[MAX_NOISE_ENVELOPES+1];/*!< borders of noise envelopes */
-}
-FRAME_INFO;
-
-
-typedef struct
-{
-  FIXP_SGL sfb_nrg_prev[MAX_FREQ_COEFFS];    /*!< Previous envelope (required for differential-coded values) */
-  FIXP_SGL prevNoiseLevel[MAX_NOISE_COEFFS]; /*!< Previous noise envelope (required for differential-coded values) */
-  COUPLING_MODE coupling;                    /*!< Stereo-mode of previous frame */
-  INVF_MODE sbr_invf_mode[MAX_INVF_BANDS];   /*!< Previous strength of filtering in transposer */
-  UCHAR ampRes;                              /*!< Previous amplitude resolution (0: 1.5dB, 1: 3dB) */
-  UCHAR stopPos;                             /*!< Position in time where last envelope ended */
-  UCHAR frameErrorFlag;                      /*!< Previous frame status */
-}
-SBR_PREV_FRAME_DATA;
-
-typedef SBR_PREV_FRAME_DATA *HANDLE_SBR_PREV_FRAME_DATA;
-
-
-typedef struct
-{
-  int nScaleFactors;                    /*!< total number of scalefactors in frame */
-
-  FRAME_INFO frameInfo;                 /*!< time grid for current frame */
-  UCHAR domain_vec[MAX_ENVELOPES];      /*!< Bitfield containing direction of delta-coding for each envelope (0:frequency, 1:time) */
-  UCHAR domain_vec_noise[MAX_NOISE_ENVELOPES]; /*!< Same as above, but for noise envelopes */
-
-  INVF_MODE sbr_invf_mode[MAX_INVF_BANDS]; /*!< Strength of filtering in transposer */
-  COUPLING_MODE coupling;                  /*!< Stereo-mode */
-  int ampResolutionCurrentFrame;           /*!< Amplitude resolution of envelope values (0: 1.5dB, 1: 3dB) */
-
-  UCHAR addHarmonics[MAX_FREQ_COEFFS];     /*!< Flags for synthetic sine addition */
-
-  FIXP_SGL iEnvelope[MAX_NUM_ENVELOPE_VALUES];       /*!< Envelope data */
-  FIXP_SGL sbrNoiseFloorLevel[MAX_NUM_NOISE_VALUES]; /*!< Noise envelope data */
-}
-SBR_FRAME_DATA;
-
-typedef SBR_FRAME_DATA *HANDLE_SBR_FRAME_DATA;
-
-void initSbrPrevFrameData (HANDLE_SBR_PREV_FRAME_DATA h_prev_data,
-                           int timeSlots);
-
-
-int sbrGetSingleChannelElement (HANDLE_SBR_HEADER_DATA hHeaderData,
-                                HANDLE_SBR_FRAME_DATA  hFrameData,
-                                HANDLE_FDK_BITSTREAM   hBitBuf,
-                                HANDLE_PS_DEC hParametricStereoDec,
-                                const UINT             flags,
-                                const int              overlap
-                               );
-
-int sbrGetChannelPairElement (HANDLE_SBR_HEADER_DATA hHeaderData,
-                              HANDLE_SBR_FRAME_DATA  hFrameDataLeft,
-                              HANDLE_SBR_FRAME_DATA  hFrameDataRight,
-                              HANDLE_FDK_BITSTREAM   hBitBuf,
-                              const UINT             flags,
-                              const int              overlap);
-
-SBR_HEADER_STATUS
-sbrGetHeaderData (HANDLE_SBR_HEADER_DATA headerData,
-                  HANDLE_FDK_BITSTREAM   hBitBuf,
-                  const UINT             flags,
-                  const int              fIsSbrData);
-
-/*!
-  \brief     Initialize SBR header data
-
-  Copy default values to the header data struct and patch some entries
-  depending on the core codec.
-*/
-SBR_ERROR
-initHeaderData (
-        HANDLE_SBR_HEADER_DATA  hHeaderData,
-        const int               sampleRateIn,
-        const int               sampleRateOut,
-        const int               samplesPerFrame,
-        const UINT              flags
-        );
-#endif