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Diffstat (limited to 'libAACenc/src/bitenc.h')
| -rw-r--r-- | libAACenc/src/bitenc.h | 223 |
1 files changed, 112 insertions, 111 deletions
diff --git a/libAACenc/src/bitenc.h b/libAACenc/src/bitenc.h index 498be7c..75dc068 100644 --- a/libAACenc/src/bitenc.h +++ b/libAACenc/src/bitenc.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 @@ -79,74 +90,70 @@ Am Wolfsmantel 33 www.iis.fraunhofer.de/amm amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ +----------------------------------------------------------------------------- */ -/******************************** MPEG Audio Encoder ************************** +/**************************** AAC encoder library ****************************** - Initial author: M. Werner - contents/description: Bitstream encoder + Author(s): M. Werner -******************************************************************************/ + Description: Bitstream encoder -#ifndef _BITENC_H -#define _BITENC_H +*******************************************************************************/ +#ifndef BITENC_H +#define BITENC_H #include "qc_data.h" #include "aacenc_tns.h" #include "channel_map.h" -#include "interface.h" /* obsolete, when PSY_OUT is thrown out of the WritBS-call! */ +#include "interface.h" /* obsolete, when PSY_OUT is thrown out of the WritBS-call! */ #include "FDK_audio.h" #include "aacenc.h" #include "tpenc_lib.h" -typedef enum{ - MAX_ENCODER_CHANNELS = 9, - MAX_BLOCK_TYPES = 4, - MAX_AAC_LAYERS = 9, - MAX_LAYERS = MAX_AAC_LAYERS , /* only one core layer if present */ - FIRST_LAY = 1 /* default layer number for AAC nonscalable */ +typedef enum { + MAX_ENCODER_CHANNELS = 9, + MAX_BLOCK_TYPES = 4, + MAX_AAC_LAYERS = 9, + MAX_LAYERS = MAX_AAC_LAYERS, /* only one core layer if present */ + FIRST_LAY = 1 /* default layer number for AAC nonscalable */ } _MAX_CONST; -#define BUFFER_MX_HUFFCB_SIZE (32*sizeof(INT)) /* our FDK_bitbuffer needs size of power 2 */ - -#define EL_ID_BITS ( 3 ) +#define BUFFER_MX_HUFFCB_SIZE \ + (32 * sizeof(INT)) /* our FDK_bitbuffer needs size of power 2 */ +#define EL_ID_BITS (3) /** - * \brief Arbitrary order bitstream writer. This function can either assemble a bit stream - * and write into the bit buffer of hTpEnc or calculate the number of static bits (signal independent) - * TpEnc handle must be NULL in this case. Or also Calculate the minimum possible number of - * static bits which by disabling all tools e.g. MS, TNS and sbfCnt=0. The minCnt parameter - * has to be 1 in this latter case. - * \param hTpEnc Transport encoder handle. If NULL, the number of static bits will be returned into - * *pBitDemand. + * \brief Arbitrary order bitstream writer. This function can either assemble a + * bit stream and write into the bit buffer of hTpEnc or calculate the number of + * static bits (signal independent) TpEnc handle must be NULL in this + * case. Or also Calculate the minimum possible number of static bits + * which by disabling all tools e.g. MS, TNS and sbfCnt=0. The minCnt + * parameter has to be 1 in this latter case. + * \param hTpEnc Transport encoder handle. If NULL, the number of static bits + * will be returned into *pBitDemand. * \param pElInfo * \param qcOutChannel * \param hReorderInfo * \param psyOutElement * \param psyOutChannel - * \param syntaxFlags Bit stream syntax flags as defined in FDK_audio.h (Audio Codec flags). + * \param syntaxFlags Bit stream syntax flags as defined in FDK_audio.h (Audio + * Codec flags). * \param aot * \param epConfig - * \param pBitDemand Pointer to an int where the amount of bits is returned into. The returned value - * depends on if hTpEnc is NULL and minCnt. - * \param minCnt If non-zero the value returned into *pBitDemand is the absolute minimum required amount of - * static bits in order to write a valid bit stream. + * \param pBitDemand Pointer to an int where the amount of bits is returned + * into. The returned value depends on if hTpEnc is NULL and minCnt. + * \param minCnt If non-zero the value returned into *pBitDemand is the absolute + * minimum required amount of static bits in order to write a valid bit stream. * \return AAC_ENCODER_ERROR error code */ -AAC_ENCODER_ERROR FDKaacEnc_ChannelElementWrite( HANDLE_TRANSPORTENC hTpEnc, - ELEMENT_INFO *pElInfo, - QC_OUT_CHANNEL *qcOutChannel[(2)], - PSY_OUT_ELEMENT *psyOutElement, - PSY_OUT_CHANNEL *psyOutChannel[(2)], - UINT syntaxFlags, - AUDIO_OBJECT_TYPE aot, - SCHAR epConfig, - INT *pBitDemand, - UCHAR minCnt - ); +AAC_ENCODER_ERROR FDKaacEnc_ChannelElementWrite( + HANDLE_TRANSPORTENC hTpEnc, ELEMENT_INFO *pElInfo, + QC_OUT_CHANNEL *qcOutChannel[(2)], PSY_OUT_ELEMENT *psyOutElement, + PSY_OUT_CHANNEL *psyOutChannel[(2)], UINT syntaxFlags, + AUDIO_OBJECT_TYPE aot, SCHAR epConfig, INT *pBitDemand, UCHAR minCnt); /** * \brief Write bit stream or account static bits * \param hTpEnc transport encoder handle. If NULL, the function will @@ -161,23 +168,17 @@ AAC_ENCODER_ERROR FDKaacEnc_ChannelElementWrite( HANDLE_TRANSPORTENC hTpEnc, * \param syntaxFlags Flags indicating format specific detail * \param epConfig Error protection config */ -AAC_ENCODER_ERROR FDKaacEnc_WriteBitstream (HANDLE_TRANSPORTENC hTpEnc, - CHANNEL_MAPPING *channelMapping, - QC_OUT* qcOut, - PSY_OUT* psyOut, - QC_STATE* qcKernel, - AUDIO_OBJECT_TYPE aot, - UINT syntaxFlags, - SCHAR epConfig - ); - -INT FDKaacEnc_writeExtensionData( HANDLE_TRANSPORTENC hTpEnc, - QC_OUT_EXTENSION *pExtension, - INT elInstanceTag, - UINT alignAnchor, - UINT syntaxFlags, - AUDIO_OBJECT_TYPE aot, - SCHAR epConfig - ); - -#endif /* _BITENC_H */ +AAC_ENCODER_ERROR FDKaacEnc_WriteBitstream(HANDLE_TRANSPORTENC hTpEnc, + CHANNEL_MAPPING *channelMapping, + QC_OUT *qcOut, PSY_OUT *psyOut, + QC_STATE *qcKernel, + AUDIO_OBJECT_TYPE aot, + UINT syntaxFlags, SCHAR epConfig); + +INT FDKaacEnc_writeExtensionData(HANDLE_TRANSPORTENC hTpEnc, + QC_OUT_EXTENSION *pExtension, + INT elInstanceTag, UINT alignAnchor, + UINT syntaxFlags, AUDIO_OBJECT_TYPE aot, + SCHAR epConfig); + +#endif /* BITENC_H */ |