diff options
Diffstat (limited to 'libSBRenc/src/sbr_encoder.cpp')
| -rw-r--r-- | libSBRenc/src/sbr_encoder.cpp | 113 |
1 files changed, 83 insertions, 30 deletions
diff --git a/libSBRenc/src/sbr_encoder.cpp b/libSBRenc/src/sbr_encoder.cpp index 31dea4e..0dcc1b2 100644 --- a/libSBRenc/src/sbr_encoder.cpp +++ b/libSBRenc/src/sbr_encoder.cpp @@ -1,30 +1,93 @@ -/*************************** Fraunhofer IIS FDK Tools *********************** - (C) Copyright Fraunhofer IIS (2004) - All Rights Reserved +/* ----------------------------------------------------------------------------------------------------------- +Software License for The Fraunhofer FDK AAC Codec Library for Android + +© Copyright 1995 - 2012 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 - Please be advised that this software and/or program delivery is - Confidential Information of Fraunhofer and subject to and covered by the +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. - Fraunhofer IIS Software Evaluation Agreement - between Google Inc. and Fraunhofer - effective and in full force since March 1, 2012. +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 software and/or program only under the terms and - conditions described in the above mentioned Fraunhofer IIS Software - Evaluation Agreement. Any other and/or further use requires a separate agreement. +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 +----------------------------------------------------------------------------------------------------------- */ + +/*************************** Fraunhofer IIS FDK Tools *********************** - $Id$ Author(s): Andreas Ehret Description: SBR encoder top level processing. - This software and/or program is protected by copyright law and international - treaties. Any reproduction or distribution of this software and/or program, - or any portion of it, may result in severe civil and criminal penalties, and - will be prosecuted to the maximum extent possible under law. - ******************************************************************************/ + #include "sbr_encoder.h" #include "sbr_ram.h" @@ -40,7 +103,7 @@ #define SBRENCODER_LIB_VL0 3 #define SBRENCODER_LIB_VL1 2 -#define SBRENCODER_LIB_VL2 0 +#define SBRENCODER_LIB_VL2 1 @@ -123,7 +186,7 @@ getSbrTuningTableIndex(UINT bitrate, /*! the total bitrate in bits/sec */ } for (; i < paramSetTop ; i++) { - if ( numChannels == sbrTuningTable [i].numChannels + if ( numChannels == sbrTuningTable [i].numChannels && sampleRate == sbrTuningTable [i].sampleRate ) { found = 1; @@ -167,7 +230,7 @@ getSbrTuningTableIndex(UINT bitrate, /*! the total bitrate in bits/sec */ *pBitRateClosest = bitRateClosestUpper; } else { *pBitRateClosest = bitRateClosestLower; - } + } } else { *pBitRateClosest = 0; } @@ -475,19 +538,9 @@ deleteEnvChannel (HANDLE_ENV_CHANNEL hEnvCut) { if (hEnvCut) { - /* deleteFrameInfoGenerator (&hEnvCut->SbrEnvFrame); */ - - - - /* deleteSbrCodeEnvelope (&hEnvCut->sbrCodeEnvelope); */ - - /* deleteSbrCodeEnvelope (&hEnvCut->sbrCodeNoiseFloor); */ - FDKsbrEnc_DeleteTonCorrParamExtr(&hEnvCut->TonCorr); FDKsbrEnc_deleteExtractSbrEnvelope (&hEnvCut->sbrExtractEnvelope); - - //FreeRam_EnvChannel(phEnvCut); } } |