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Diffstat (limited to 'libAACdec/src/aacdec_drc.h')
| -rw-r--r-- | libAACdec/src/aacdec_drc.h | 231 |
1 files changed, 117 insertions, 114 deletions
diff --git a/libAACdec/src/aacdec_drc.h b/libAACdec/src/aacdec_drc.h index c850aa5..924ec6f 100644 --- a/libAACdec/src/aacdec_drc.h +++ b/libAACdec/src/aacdec_drc.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 @@ -79,111 +90,103 @@ Am Wolfsmantel 33 www.iis.fraunhofer.de/amm amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ +----------------------------------------------------------------------------- */ -/***************************** MPEG-4 AAC Decoder ************************** +/**************************** AAC decoder library ****************************** Author(s): Christian Griebel + Description: Dynamic range control (DRC) decoder tool for AAC -******************************************************************************/ +*******************************************************************************/ #ifndef AACDEC_DRC_H #define AACDEC_DRC_H -#include "tp_data.h" /* for program config element support */ - +#include "tp_data.h" /* for program config element support */ #include "aacdec_drc_types.h" #include "channel.h" #include "FDK_bitstream.h" -#define AACDEC_DRC_DFLT_EXPIRY_FRAMES ( 50 ) /* Default DRC data expiry time in AAC frames */ +#define AACDEC_DRC_DFLT_EXPIRY_FRAMES \ + (0) /* Default DRC data expiry time in AAC frames */ + +/* #define AACDEC_DRC_IGNORE_FRAMES_WITH_MULTIPLE_CH_THREADS */ /* The name says + it all. */ +/* #define AACDEC_DRC_DEBUG */ /** * \brief DRC module setting parameters */ -typedef enum -{ +typedef enum { DRC_CUT_SCALE = 0, DRC_BOOST_SCALE, TARGET_REF_LEVEL, DRC_BS_DELAY, DRC_DATA_EXPIRY_FRAME, APPLY_NORMALIZATION, - APPLY_HEAVY_COMPRESSION - + APPLY_HEAVY_COMPRESSION, + DEFAULT_PRESENTATION_MODE, + ENCODER_TARGET_LEVEL, + MAX_OUTPUT_CHANNELS, + UNIDRC_PRECEDENCE } AACDEC_DRC_PARAM; - /** * \brief DRC module interface functions */ -void aacDecoder_drcInit ( - HANDLE_AAC_DRC self ); - -void aacDecoder_drcInitChannelData ( - CDrcChannelData *pDrcChannel ); - -AAC_DECODER_ERROR aacDecoder_drcSetParam ( - HANDLE_AAC_DRC self, - AACDEC_DRC_PARAM param, - INT value ); - -int aacDecoder_drcMarkPayload ( - HANDLE_AAC_DRC self, - HANDLE_FDK_BITSTREAM hBs, - AACDEC_DRC_PAYLOAD_TYPE type ); - -int aacDecoder_drcProlog ( - HANDLE_AAC_DRC self, - HANDLE_FDK_BITSTREAM hBs, - CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[], - UCHAR pceInstanceTag, - UCHAR channelMapping[], - int numChannels ); +void aacDecoder_drcInit(HANDLE_AAC_DRC self); + +void aacDecoder_drcInitChannelData(CDrcChannelData *pDrcChannel); + +AAC_DECODER_ERROR aacDecoder_drcSetParam(HANDLE_AAC_DRC self, + AACDEC_DRC_PARAM param, INT value); + +int aacDecoder_drcMarkPayload(HANDLE_AAC_DRC self, HANDLE_FDK_BITSTREAM hBs, + AACDEC_DRC_PAYLOAD_TYPE type); + +int aacDecoder_drcProlog( + HANDLE_AAC_DRC self, HANDLE_FDK_BITSTREAM hBs, + CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[], + UCHAR pceInstanceTag, UCHAR channelMapping[], int validChannels); /** - * \brief Apply DRC. If SBR is present, DRC data is handed over to the SBR decoder. + * \brief Apply DRC. If SBR is present, DRC data is handed over to the SBR + * decoder. * \param self AAC decoder instance * \param pSbrDec pointer to SBR decoder instance * \param pAacDecoderChannelInfo AAC decoder channel instance to be processed * \param pDrcDat DRC channel data - * \param extGain Pointer to a FIXP_DBL where a externally applyable gain will be stored into (independently on whether it will be apply internally or not). - * At function call the buffer must hold the scale (0 >= scale < DFRACT_BITS) to be applied on the gain value. + * \param extGain Pointer to a FIXP_DBL where a externally applyable gain will + * be stored into (independently on whether it will be apply internally or not). + * At function call the buffer must hold the scale (0 >= scale < + * DFRACT_BITS) to be applied on the gain value. * \param ch channel index * \param aacFrameSize AAC frame size - * \param bSbrPresent flag indicating that SBR is present, in which case DRC is handed over to the SBR instance pSbrDec + * \param bSbrPresent flag indicating that SBR is present, in which case DRC is + * handed over to the SBR instance pSbrDec */ -void aacDecoder_drcApply ( - HANDLE_AAC_DRC self, - void *pSbrDec, - CAacDecoderChannelInfo *pAacDecoderChannelInfo, - CDrcChannelData *pDrcDat, - FIXP_DBL *extGain, - int ch, - int aacFrameSize, - int bSbrPresent ); - -int aacDecoder_drcEpilog ( - HANDLE_AAC_DRC self, - HANDLE_FDK_BITSTREAM hBs, - CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[], - UCHAR pceInstanceTag, - UCHAR channelMapping[], - int validChannels ); +void aacDecoder_drcApply(HANDLE_AAC_DRC self, void *pSbrDec, + CAacDecoderChannelInfo *pAacDecoderChannelInfo, + CDrcChannelData *pDrcDat, FIXP_DBL *extGain, int ch, + int aacFrameSize, int bSbrPresent); + +int aacDecoder_drcEpilog( + HANDLE_AAC_DRC self, HANDLE_FDK_BITSTREAM hBs, + CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[], + UCHAR pceInstanceTag, UCHAR channelMapping[], int validChannels); /** * \brief Get metadata information found in bitstream. * \param self DRC module instance handle. - * \param pPresMode Pointer to field where the presentation mode will be written to. - * \param pProgRefLevel Pointer to field where the program reference level will be written to. + * \param pPresMode Pointer to field where the presentation mode will be written + * to. + * \param pProgRefLevel Pointer to field where the program reference level will + * be written to. * \return Nothing. */ -void aacDecoder_drcGetInfo ( - HANDLE_AAC_DRC self, - SCHAR *pPresMode, - SCHAR *pProgRefLevel ); - +void aacDecoder_drcGetInfo(HANDLE_AAC_DRC self, SCHAR *pPresMode, + SCHAR *pProgRefLevel); -#endif /* AACDEC_DRC_H */ +#endif /* AACDEC_DRC_H */ |