diff options
Diffstat (limited to 'fdk-aac/libSACenc/src/sacenc_paramextract.h')
| -rw-r--r-- | fdk-aac/libSACenc/src/sacenc_paramextract.h | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/fdk-aac/libSACenc/src/sacenc_paramextract.h b/fdk-aac/libSACenc/src/sacenc_paramextract.h new file mode 100644 index 0000000..9ebb902 --- /dev/null +++ b/fdk-aac/libSACenc/src/sacenc_paramextract.h @@ -0,0 +1,214 @@ +/* ----------------------------------------------------------------------------- +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 +----------------------------------------------------------------------------- */ + +/*********************** MPEG surround encoder library ************************* + + Author(s): M. Multrus + + Description: Parameter Extraction + +*******************************************************************************/ + +#ifndef SACENC_PARAMEXTRACT_H +#define SACENC_PARAMEXTRACT_H + +/* Includes ******************************************************************/ +#include "common_fix.h" +#include "sacenc_lib.h" +#include "sacenc_const.h" +#include "sacenc_bitstream.h" + +/* Defines *******************************************************************/ +#define MAX_CLD_QUANT_FINE (31) +#define MAX_CLD_QUANT_COARSE (15) +#define OFFSET_CLD_QUANT_COARSE (7) +#define OFFSET_CLD_QUANT_FINE (15) + +#define MAX_ICC_QUANT_COARSE (4) +#define MAX_ICC_QUANT_FINE (8) +#define OFFSET_ICC_QUANT_COARSE (0) +#define OFFSET_ICC_QUANT_FINE (0) + +#define MAX_NUM_PARAM_BANDS (28) + +#define NUM_MAPPED_HYBRID_BANDS (16) + +/* Data Types ****************************************************************/ +typedef struct T_TTO_BOX *HANDLE_TTO_BOX; + +typedef enum { + BOX_SUBBANDS_INVALID = 0, + BOX_SUBBANDS_4 = 4, + BOX_SUBBANDS_5 = 5, + BOX_SUBBANDS_7 = 7, + BOX_SUBBANDS_9 = 9, + BOX_SUBBANDS_12 = 12, + BOX_SUBBANDS_15 = 15, + BOX_SUBBANDS_23 = 23 + +} BOX_SUBBAND_CONFIG; + +typedef enum { + BOX_QUANTMODE_INVALID = -1, + BOX_QUANTMODE_FINE = 0, + BOX_QUANTMODE_EBQ1 = 1, + BOX_QUANTMODE_EBQ2 = 2, + BOX_QUANTMODE_RESERVED3 = 3, + BOX_QUANTMODE_RESERVED4 = 4, + BOX_QUANTMODE_RESERVED5 = 5, + BOX_QUANTMODE_RESERVED6 = 6, + BOX_QUANTMODE_RESERVED7 = 7 + +} BOX_QUANTMODE; + +typedef struct T_TTO_BOX_CONFIG { + UCHAR bUseCoarseQuantCld; + UCHAR bUseCoarseQuantIcc; + UCHAR bUseCoherenceIccOnly; + + BOX_SUBBAND_CONFIG subbandConfig; + BOX_QUANTMODE boxQuantMode; + + UCHAR nHybridBandsMax; + + UCHAR bFrameKeep; + +} TTO_BOX_CONFIG; + +/* Constants *****************************************************************/ + +/* Function / Class Declarations *********************************************/ +FDK_SACENC_ERROR fdk_sacenc_createTtoBox(HANDLE_TTO_BOX *hTtoBox); + +FDK_SACENC_ERROR fdk_sacenc_initTtoBox(HANDLE_TTO_BOX hTtoBox, + const TTO_BOX_CONFIG *const ttoBoxConfig, + UCHAR *pParameterBand2HybridBandOffset); + +FDK_SACENC_ERROR fdk_sacenc_destroyTtoBox(HANDLE_TTO_BOX *hTtoBox); + +FDK_SACENC_ERROR fdk_sacenc_applyTtoBox( + HANDLE_TTO_BOX hTtoBox, const INT nTimeSlots, const INT startTimeSlot, + const INT nHybridBands, const FIXP_DPK *const *const ppHybridData1__FDK, + const FIXP_DPK *const *const ppHybridData2__FDK, SCHAR *const pIccIdx, + UCHAR *const pbIccQuantCoarse, SCHAR *const pCldIdx, + UCHAR *const pbCldQuantCoarse, const INT bUseBBCues, INT *scaleCh0, + INT *scaleCh1); + +INT fdk_sacenc_subband2ParamBand(const BOX_SUBBAND_CONFIG boxSubbandConfig, + const INT nSubband); + +const INT *fdk_sacenc_getSubbandImagSign(); + +void fdk_sacenc_calcParameterBand2HybridBandOffset( + const BOX_SUBBAND_CONFIG subbandConfig, const INT nHybridBands, + UCHAR *pParameterBand2HybridBandOffset); + +/* Function / Class Definition ***********************************************/ +static inline UCHAR fdk_sacenc_getCldQuantOffset(const INT bUseCoarseQuant) { + return ((bUseCoarseQuant) ? OFFSET_CLD_QUANT_COARSE : OFFSET_CLD_QUANT_FINE); +} +static inline UCHAR fdk_sacenc_getIccQuantOffset(const INT bUseCoarseQuant) { + return ((bUseCoarseQuant) ? OFFSET_ICC_QUANT_COARSE : OFFSET_ICC_QUANT_FINE); +} + +static inline UCHAR fdk_sacenc_getNumberCldQuantLevels( + const INT bUseCoarseQuant) { + return ((bUseCoarseQuant) ? MAX_CLD_QUANT_COARSE : MAX_CLD_QUANT_FINE); +} +static inline UCHAR fdk_sacenc_getNumberIccQuantLevels( + const INT bUseCoarseQuant) { + return ((bUseCoarseQuant) ? MAX_ICC_QUANT_COARSE : MAX_ICC_QUANT_FINE); +} + +#endif /* SACENC_PARAMEXTRACT_H */ |