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Diffstat (limited to 'fdk-aac/libSACenc/src/sacenc_staticgain.h')
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diff --git a/fdk-aac/libSACenc/src/sacenc_staticgain.h b/fdk-aac/libSACenc/src/sacenc_staticgain.h new file mode 100644 index 0000000..5db3bec --- /dev/null +++ b/fdk-aac/libSACenc/src/sacenc_staticgain.h @@ -0,0 +1,177 @@ +/* ----------------------------------------------------------------------------- +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): Christian Goettlinger + + Description: Encoder Library Interfac + gain management of the encoder + +*******************************************************************************/ + +/**************************************************************************/ /** + \file + ******************************************************************************/ + +#ifndef SACENC_STATICGAIN_H +#define SACENC_STATICGAIN_H + +/* Includes ******************************************************************/ +#include "common_fix.h" +#include "sacenc_lib.h" +#include "sacenc_const.h" +#include "sacenc_bitstream.h" + +/* Defines *******************************************************************/ +#define FIXP_GAIN FIXP_DBL +#define MAXVAL_GAIN ((FIXP_DBL)MAXVAL_DBL) + +/* Data Types ****************************************************************/ +struct STATIC_GAIN_CONFIG { + MP4SPACEENC_MODE encMode; + MP4SPACEENC_DMX_GAIN fixedGainDMX; + INT preGainFactorDb; +}; + +typedef struct STATIC_GAIN_CONFIG *HANDLE_STATIC_GAIN_CONFIG; +typedef struct STATIC_GAIN *HANDLE_STATIC_GAIN; + +/* Constants *****************************************************************/ + +/* Function / Class Declarations *********************************************/ + +/* Initializes Static Gain Computation Config */ +FDK_SACENC_ERROR fdk_sacenc_staticGain_OpenConfig( + HANDLE_STATIC_GAIN_CONFIG *phStaticGainConfig); + +FDK_SACENC_ERROR fdk_sacenc_staticGain_InitDefaultConfig( + HANDLE_STATIC_GAIN_CONFIG hStaticGainConfig); + +/* Deletes Static Gain Computation Config ~Destructor */ +FDK_SACENC_ERROR fdk_sacenc_staticGain_CloseConfig( + HANDLE_STATIC_GAIN_CONFIG *phStaticGainConfig); + +/* Initializes Static Gain Computation ~Constructor */ +FDK_SACENC_ERROR fdk_sacenc_staticGain_Open(HANDLE_STATIC_GAIN *phStaticGain); + +FDK_SACENC_ERROR fdk_sacenc_staticGain_Init( + HANDLE_STATIC_GAIN hStaticGain, + const HANDLE_STATIC_GAIN_CONFIG hStaticGainConfig, INT *const scale); + +/* Deletes Static Gain Computation Infrastucture ~Destructor */ +FDK_SACENC_ERROR fdk_sacenc_staticGain_Close(HANDLE_STATIC_GAIN *phStaticGain); + +/* Apply PostGain to the output PCM Downmix-Signal */ +FDK_SACENC_ERROR fdk_sacenc_staticPostGain_ApplyFDK( + const HANDLE_STATIC_GAIN hStaticGain, INT_PCM *const pOutputSamples, + const INT nOutputSamples, const INT scale); + +/* Get Pointer to PreGain-vector */ +FIXP_GAIN *fdk_sacenc_getPreGainPtrFDK(HANDLE_STATIC_GAIN hStaticGain); + +/* Get Pointer to PostGain-coef */ +FIXP_GAIN fdk_sacenc_getPostGainFDK(HANDLE_STATIC_GAIN hStaticGain); + +FIXEDGAINDMXCONFIG fdk_sacenc_staticGain_GetDmxGain( + const HANDLE_STATIC_GAIN hStaticGain); + +FDK_SACENC_ERROR fdk_sacenc_staticGain_SetDmxGain( + HANDLE_STATIC_GAIN_CONFIG hStaticGainCfg, + const MP4SPACEENC_DMX_GAIN dmxGain); + +FDK_SACENC_ERROR fdk_sacenc_staticGain_SetEncMode( + HANDLE_STATIC_GAIN_CONFIG hStaticGainCfg, const MP4SPACEENC_MODE encMode); + +#endif /* SACENC_STATICGAIN_H */ |