diff options
Diffstat (limited to 'fdk-aac/libDRCdec/src/drcDec_rom.cpp')
| -rw-r--r-- | fdk-aac/libDRCdec/src/drcDec_rom.cpp | 323 |
1 files changed, 323 insertions, 0 deletions
diff --git a/fdk-aac/libDRCdec/src/drcDec_rom.cpp b/fdk-aac/libDRCdec/src/drcDec_rom.cpp new file mode 100644 index 0000000..9f89689 --- /dev/null +++ b/fdk-aac/libDRCdec/src/drcDec_rom.cpp @@ -0,0 +1,323 @@ +/* ----------------------------------------------------------------------------- +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-D DRC decoder library ************************** + + Author(s): + + Description: + +*******************************************************************************/ + +#include "drcDec_types.h" +#include "drcDec_rom.h" + +const SCHAR deltaGain_codingProfile_0_1_huffman[24][2] = { + {1, 2}, {3, 4}, {-63, -65}, {5, -66}, {-64, 6}, {-80, 7}, + {8, 9}, {-68, 10}, {11, 12}, {-56, -67}, {-61, 13}, {-62, -69}, + {14, 15}, {16, -72}, {-71, 17}, {-70, -60}, {18, -59}, {19, 20}, + {21, -79}, {-57, -73}, {22, -58}, {-76, 23}, {-75, -74}, {-78, -77}}; + +const SCHAR deltaGain_codingProfile_2_huffman[48][2] = { + {1, 2}, {3, 4}, {5, 6}, {7, 8}, {9, 10}, {11, 12}, + {13, -65}, {14, -64}, {15, -66}, {16, -67}, {17, 18}, {19, -68}, + {20, -63}, {-69, 21}, {-59, 22}, {-61, -62}, {-60, 23}, {24, -58}, + {-70, -57}, {-56, -71}, {25, 26}, {27, -55}, {-72, 28}, {-54, 29}, + {-53, 30}, {-73, -52}, {31, -74}, {32, 33}, {-75, 34}, {-76, 35}, + {-51, 36}, {-78, 37}, {-77, 38}, {-96, 39}, {-48, 40}, {-50, -79}, + {41, 42}, {-80, -81}, {-82, 43}, {44, -49}, {45, -84}, {-83, -89}, + {-86, 46}, {-90, -85}, {-91, -93}, {-92, 47}, {-88, -87}, {-95, -94}}; + +const FIXP_SGL slopeSteepness[] = {FL2FXCONST_SGL(-3.0518f / (float)(1 << 2)), + FL2FXCONST_SGL(-1.2207f / (float)(1 << 2)), + FL2FXCONST_SGL(-0.4883f / (float)(1 << 2)), + FL2FXCONST_SGL(-0.1953f / (float)(1 << 2)), + FL2FXCONST_SGL(-0.0781f / (float)(1 << 2)), + FL2FXCONST_SGL(-0.0312f / (float)(1 << 2)), + FL2FXCONST_SGL(-0.005f / (float)(1 << 2)), + FL2FXCONST_SGL(0.0f / (float)(1 << 2)), + FL2FXCONST_SGL(0.005f / (float)(1 << 2)), + FL2FXCONST_SGL(0.0312f / (float)(1 << 2)), + FL2FXCONST_SGL(0.0781f / (float)(1 << 2)), + FL2FXCONST_SGL(0.1953f / (float)(1 << 2)), + FL2FXCONST_SGL(0.4883f / (float)(1 << 2)), + FL2FXCONST_SGL(1.2207f / (float)(1 << 2)), + FL2FXCONST_SGL(3.0518f / (float)(1 << 2))}; + +const SCHAR slopeSteepness_huffman[14][2] = { + {1, -57}, {-58, 2}, {3, 4}, {5, 6}, {7, -56}, + {8, -60}, {-61, -55}, {9, -59}, {10, -54}, {-64, 11}, + {-51, 12}, {-62, -50}, {-63, 13}, {-52, -53}}; + +const FIXP_DBL downmixCoeff[] = { + FL2FXCONST_DBL(1.0000000000 / (float)(1 << 2)), + FL2FXCONST_DBL(0.9440608763 / (float)(1 << 2)), + FL2FXCONST_DBL(0.8912509381 / (float)(1 << 2)), + FL2FXCONST_DBL(0.8413951416 / (float)(1 << 2)), + FL2FXCONST_DBL(0.7943282347 / (float)(1 << 2)), + FL2FXCONST_DBL(0.7498942093 / (float)(1 << 2)), + FL2FXCONST_DBL(0.7079457844 / (float)(1 << 2)), + FL2FXCONST_DBL(0.6683439176 / (float)(1 << 2)), + FL2FXCONST_DBL(0.6309573445 / (float)(1 << 2)), + FL2FXCONST_DBL(0.5956621435 / (float)(1 << 2)), + FL2FXCONST_DBL(0.5623413252 / (float)(1 << 2)), + FL2FXCONST_DBL(0.5308844442 / (float)(1 << 2)), + FL2FXCONST_DBL(0.5011872336 / (float)(1 << 2)), + FL2FXCONST_DBL(0.4216965034 / (float)(1 << 2)), + FL2FXCONST_DBL(0.3548133892 / (float)(1 << 2)), + FL2FXCONST_DBL(0.0000000000 / (float)(1 << 2))}; + +const FIXP_DBL downmixCoeffV1[] = { + FL2FXCONST_DBL(3.1622776602 / (float)(1 << 2)), + FL2FXCONST_DBL(1.9952623150 / (float)(1 << 2)), + FL2FXCONST_DBL(1.6788040181 / (float)(1 << 2)), + FL2FXCONST_DBL(1.4125375446 / (float)(1 << 2)), + FL2FXCONST_DBL(1.1885022274 / (float)(1 << 2)), + FL2FXCONST_DBL(1.0000000000 / (float)(1 << 2)), + FL2FXCONST_DBL(0.9440608763 / (float)(1 << 2)), + FL2FXCONST_DBL(0.8912509381 / (float)(1 << 2)), + FL2FXCONST_DBL(0.8413951416 / (float)(1 << 2)), + FL2FXCONST_DBL(0.7943282347 / (float)(1 << 2)), + FL2FXCONST_DBL(0.7498942093 / (float)(1 << 2)), + FL2FXCONST_DBL(0.7079457844 / (float)(1 << 2)), + FL2FXCONST_DBL(0.6683439176 / (float)(1 << 2)), + FL2FXCONST_DBL(0.6309573445 / (float)(1 << 2)), + FL2FXCONST_DBL(0.5956621435 / (float)(1 << 2)), + FL2FXCONST_DBL(0.5623413252 / (float)(1 << 2)), + FL2FXCONST_DBL(0.5308844442 / (float)(1 << 2)), + FL2FXCONST_DBL(0.5011872336 / (float)(1 << 2)), + FL2FXCONST_DBL(0.4731512590 / (float)(1 << 2)), + FL2FXCONST_DBL(0.4466835922 / (float)(1 << 2)), + FL2FXCONST_DBL(0.4216965034 / (float)(1 << 2)), + FL2FXCONST_DBL(0.3981071706 / (float)(1 << 2)), + FL2FXCONST_DBL(0.3548133892 / (float)(1 << 2)), + FL2FXCONST_DBL(0.3162277660 / (float)(1 << 2)), + FL2FXCONST_DBL(0.2818382931 / (float)(1 << 2)), + FL2FXCONST_DBL(0.2511886432 / (float)(1 << 2)), + FL2FXCONST_DBL(0.1778279410 / (float)(1 << 2)), + FL2FXCONST_DBL(0.1000000000 / (float)(1 << 2)), + FL2FXCONST_DBL(0.0562341325 / (float)(1 << 2)), + FL2FXCONST_DBL(0.0316227766 / (float)(1 << 2)), + FL2FXCONST_DBL(0.0100000000 / (float)(1 << 2)), + FL2FXCONST_DBL(0.0000000000 / (float)(1 << 2))}; + +const CUSTOM_DRC_CHAR_SIGMOID cicpDrcCharSigmoidLeft[] = { + {FL2FXCONST_SGL(32.0f / (float)(1 << 6)), + FL2FXCONST_SGL(0.0f / (float)(1 << 2)), + FL2FXCONST_SGL(9.0f / (float)(1 << 5)), 0}, /* 1 */ + {FL2FXCONST_SGL(32.0f / (float)(1 << 6)), + FL2FXCONST_SGL(0.2f / (float)(1 << 2)), + FL2FXCONST_SGL(9.0f / (float)(1 << 5)), 0}, /* 2 */ + {FL2FXCONST_SGL(32.0f / (float)(1 << 6)), + FL2FXCONST_SGL(0.4f / (float)(1 << 2)), + FL2FXCONST_SGL(9.0f / (float)(1 << 5)), 0}, /* 3 */ + {FL2FXCONST_SGL(32.0f / (float)(1 << 6)), + FL2FXCONST_SGL(0.6f / (float)(1 << 2)), + FL2FXCONST_SGL(9.0f / (float)(1 << 5)), 0}, /* 4 */ + {FL2FXCONST_SGL(32.0f / (float)(1 << 6)), + FL2FXCONST_SGL(0.8f / (float)(1 << 2)), + FL2FXCONST_SGL(6.0f / (float)(1 << 5)), 0}, /* 5 */ + {FL2FXCONST_SGL(32.0f / (float)(1 << 6)), + FL2FXCONST_SGL(1.0f / (float)(1 << 2)), + FL2FXCONST_SGL(5.0f / (float)(1 << 5)), 0}, /* 6 */ +}; + +const CUSTOM_DRC_CHAR_SIGMOID cicpDrcCharSigmoidRight[] = { + {FL2FXCONST_SGL(-32.0f / (float)(1 << 6)), + FL2FXCONST_SGL(0.0f / (float)(1 << 2)), + FL2FXCONST_SGL(12.0f / (float)(1 << 5)), 0}, /* 1 */ + {FL2FXCONST_SGL(-32.0f / (float)(1 << 6)), + FL2FXCONST_SGL(0.2f / (float)(1 << 2)), + FL2FXCONST_SGL(12.0f / (float)(1 << 5)), 0}, /* 2 */ + {FL2FXCONST_SGL(-32.0f / (float)(1 << 6)), + FL2FXCONST_SGL(0.4f / (float)(1 << 2)), + FL2FXCONST_SGL(12.0f / (float)(1 << 5)), 0}, /* 3 */ + {FL2FXCONST_SGL(-32.0f / (float)(1 << 6)), + FL2FXCONST_SGL(0.6f / (float)(1 << 2)), + FL2FXCONST_SGL(10.0f / (float)(1 << 5)), 0}, /* 4 */ + {FL2FXCONST_SGL(-32.0f / (float)(1 << 6)), + FL2FXCONST_SGL(0.8f / (float)(1 << 2)), + FL2FXCONST_SGL(8.0f / (float)(1 << 5)), 0}, /* 5 */ + {FL2FXCONST_SGL(-32.0f / (float)(1 << 6)), + FL2FXCONST_SGL(1.0f / (float)(1 << 2)), + FL2FXCONST_SGL(6.0f / (float)(1 << 5)), 0}, /* 6 */ +}; + +const CUSTOM_DRC_CHAR_NODES cicpDrcCharNodesLeft[] = { + {2, + {FL2FXCONST_SGL(-31.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-41.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-53.0f / (float)(1 << 7))}, + {FL2FXCONST_SGL(0.0f / (float)(1 << 7)), + FL2FXCONST_SGL(0.0f / (float)(1 << 7)), + FL2FXCONST_SGL(6.0f / (float)(1 << 7))}}, /* 7 */ + {1, + {FL2FXCONST_SGL(-31.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-43.0f / (float)(1 << 7))}, + {FL2FXCONST_SGL(0.0f / (float)(1 << 7)), + FL2FXCONST_SGL(6.0f / (float)(1 << 7))}}, /* 8 */ + {2, + {FL2FXCONST_SGL(-31.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-41.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-65.0f / (float)(1 << 7))}, + {FL2FXCONST_SGL(0.0f / (float)(1 << 7)), + FL2FXCONST_SGL(0.0f / (float)(1 << 7)), + FL2FXCONST_SGL(12.0f / (float)(1 << 7))}}, /* 9 */ + {1, + {FL2FXCONST_SGL(-31.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-55.0f / (float)(1 << 7))}, + {FL2FXCONST_SGL(0.0f / (float)(1 << 7)), + FL2FXCONST_SGL(12.0f / (float)(1 << 7))}}, /* 10 */ + {1, + {FL2FXCONST_SGL(-31.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-50.0f / (float)(1 << 7))}, + {FL2FXCONST_SGL(0.0f / (float)(1 << 7)), + FL2FXCONST_SGL(15.0f / (float)(1 << 7))}} /* 11 */ +}; + +const CUSTOM_DRC_CHAR_NODES cicpDrcCharNodesRight[] = { + {4, + {FL2FXCONST_SGL(-31.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-21.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-11.0f / (float)(1 << 7)), + FL2FXCONST_SGL(9.0f / (float)(1 << 7)), + FL2FXCONST_SGL(19.0f / (float)(1 << 7))}, + {FL2FXCONST_SGL(0.0f / (float)(1 << 7)), + FL2FXCONST_SGL(0.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-5.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-24.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-34.0f / (float)(1 << 7))}}, /* 7 */ + {4, + {FL2FXCONST_SGL(-31.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-26.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-16.0f / (float)(1 << 7)), + FL2FXCONST_SGL(4.0f / (float)(1 << 7)), + FL2FXCONST_SGL(14.0f / (float)(1 << 7))}, + {FL2FXCONST_SGL(0.0f / (float)(1 << 7)), + FL2FXCONST_SGL(0.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-5.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-24.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-34.0f / (float)(1 << 7))}}, /* 8 */ + {3, + {FL2FXCONST_SGL(-31.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-21.0f / (float)(1 << 7)), + FL2FXCONST_SGL(9.0f / (float)(1 << 7)), + FL2FXCONST_SGL(29.0f / (float)(1 << 7))}, + {FL2FXCONST_SGL(0.0f / (float)(1 << 7)), + FL2FXCONST_SGL(0.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-15.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-35.0f / (float)(1 << 7))}}, /* 9 */ + {4, + {FL2FXCONST_SGL(-31.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-26.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-16.0f / (float)(1 << 7)), + FL2FXCONST_SGL(4.0f / (float)(1 << 7)), + FL2FXCONST_SGL(14.0f / (float)(1 << 7))}, + {FL2FXCONST_SGL(0.0f / (float)(1 << 7)), + FL2FXCONST_SGL(0.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-5.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-24.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-34.0f / (float)(1 << 7))}}, /* 10 */ + {4, + {FL2FXCONST_SGL(-31.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-26.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-16.0f / (float)(1 << 7)), + FL2FXCONST_SGL(4.0f / (float)(1 << 7)), + FL2FXCONST_SGL(14.0f / (float)(1 << 7))}, + {FL2FXCONST_SGL(0.0f / (float)(1 << 7)), + FL2FXCONST_SGL(0.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-5.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-24.0f / (float)(1 << 7)), + FL2FXCONST_SGL(-34.0f / (float)(1 << 7))}} /* 11 */ +}; |