369 lines
16 KiB
C++
369 lines
16 KiB
C++
/*
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* Project 25 IMBE Encoder/Decoder Fixed-Point implementation
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* Developed by Pavel Yazev E-mail: pyazev@gmail.com
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* Version 1.0 (c) Copyright 2009
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*
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* This is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3, or (at your option)
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* any later version.
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*
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* The software is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this; see the file COPYING. If not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Boston, MA
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* 02110-1301, USA.
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*/
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#include "typedef.h"
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#include "tbls.h"
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//-----------------------------------------------------------------------------
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//
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// Bit allocation and ancillary tables
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//
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//-----------------------------------------------------------------------------
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const Word16 bit_allocation_tbl[] =
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{
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0xA999, 0x9987,
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0x9988, 0x8976, 0x5000,
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0x8887, 0x7976, 0x5400,
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0x8777, 0x7876, 0x5430,
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0x7776, 0x6776, 0x5433,
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0x7666, 0x6775, 0x4434, 0x3000,
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0x7666, 0x5675, 0x4433, 0x3300,
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0x6665, 0x5665, 0x4433, 0x3320,
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0x6655, 0x5555, 0x4443, 0x3232,
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0x6555, 0x5545, 0x5433, 0x3322, 0x2000,
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0x6554, 0x4545, 0x4433, 0x3323, 0x2100,
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0x6554, 0x4545, 0x4433, 0x2321, 0x3210,
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0x5554, 0x4445, 0x4433, 0x2232, 0x1321,
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0x5544, 0x4444, 0x4432, 0x3223, 0x2122, 0x1000,
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0x5444, 0x4434, 0x4343, 0x2322, 0x2212, 0x2100,
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0x5444, 0x4433, 0x4333, 0x3232, 0x1221, 0x2210,
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0x5444, 0x3433, 0x4333, 0x3232, 0x1221, 0x2111,
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0x5443, 0x3433, 0x4333, 0x2232, 0x1221, 0x1221, 0x1000,
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0x5443, 0x3432, 0x4323, 0x2232, 0x2122, 0x1122, 0x1100,
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0x4443, 0x3432, 0x4323, 0x2223, 0x2112, 0x2112, 0x1110,
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0x4443, 0x3332, 0x4322, 0x3222, 0x3211, 0x2111, 0x2111,
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0x4443, 0x3332, 0x2332, 0x2322, 0x1321, 0x1211, 0x1211, 0x1000,
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0x4433, 0x3332, 0x2332, 0x2322, 0x1221, 0x1211, 0x1211, 0x1100,
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0x4433, 0x3332, 0x2332, 0x2322, 0x1221, 0x1211, 0x1121, 0x1100,
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0x4333, 0x3332, 0x2332, 0x2321, 0x1221, 0x1121, 0x1112, 0x1111,
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0x4333, 0x3322, 0x2322, 0x2322, 0x1122, 0x1112, 0x1111, 0x2111, 0x0000,
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0x4333, 0x3322, 0x2322, 0x2232, 0x1112, 0x2111, 0x2111, 0x0211, 0x1000,
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0x4333, 0x3322, 0x2132, 0x2213, 0x2111, 0x2211, 0x1211, 0x1021, 0x1100,
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0x4333, 0x2322, 0x2132, 0x2223, 0x2111, 0x2111, 0x1211, 0x1021, 0x1110,
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0x4333, 0x2322, 0x2132, 0x2213, 0x2111, 0x2111, 0x1211, 0x1102, 0x1111, 0x0000,
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0x4333, 0x2322, 0x2132, 0x2213, 0x2111, 0x2211, 0x1021, 0x1110, 0x2111, 0x0000,
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0x4333, 0x2322, 0x2132, 0x2113, 0x2111, 0x1221, 0x1102, 0x1111, 0x0211, 0x1000,
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0x4332, 0x2322, 0x1132, 0x2211, 0x3211, 0x1122, 0x1110, 0x2111, 0x1021, 0x1100,
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0x4332, 0x2322, 0x2113, 0x2221, 0x1221, 0x1112, 0x2111, 0x0211, 0x1002, 0x1110, 0x0000,
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0x4332, 0x2322, 0x2113, 0x2221, 0x1221, 0x1112, 0x1111, 0x0211, 0x1002, 0x1111, 0x0000,
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0x4332, 0x2322, 0x1113, 0x2221, 0x1221, 0x1112, 0x1111, 0x0211, 0x1100, 0x2111, 0x1000,
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0x4332, 0x2322, 0x1113, 0x2211, 0x1221, 0x1112, 0x2111, 0x0021, 0x1110, 0x0211, 0x1100,
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0x3332, 0x2322, 0x1113, 0x2211, 0x1221, 0x1111, 0x2211, 0x1002, 0x1111, 0x0021, 0x1110, 0x0000,
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0x3332, 0x2322, 0x1113, 0x2211, 0x1122, 0x1111, 0x1221, 0x1100, 0x2111, 0x1002, 0x1110, 0x0000,
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0x3332, 0x2322, 0x1111, 0x3221, 0x1112, 0x2111, 0x1122, 0x1110, 0x0211, 0x1000, 0x2111, 0x0000,
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0x3332, 0x2322, 0x1111, 0x3221, 0x1112, 0x2111, 0x1022, 0x1110, 0x0211, 0x1000, 0x2111, 0x1000,
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0x3332, 0x2322, 0x1111, 0x3221, 0x1112, 0x2111, 0x1022, 0x1110, 0x0211, 0x1100, 0x0211, 0x1000, 0x0000,
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0x3332, 0x2322, 0x1111, 0x3211, 0x1112, 0x2111, 0x1022, 0x1110, 0x0021, 0x1110, 0x0021, 0x1110, 0x0000,
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0x3322, 0x2321, 0x1111, 0x3221, 0x1112, 0x2111, 0x1102, 0x2111, 0x0002, 0x1111, 0x0002, 0x1111, 0x0000,
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0x3322, 0x2321, 0x1111, 0x3221, 0x1111, 0x2211, 0x1110, 0x2211, 0x1000, 0x2111, 0x1000, 0x2111, 0x0000,
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0x3322, 0x2322, 0x1111, 0x0322, 0x1111, 0x0221, 0x1111, 0x0221, 0x1100, 0x0211, 0x1100, 0x0211, 0x1000, 0x0000,
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0x3322, 0x2322, 0x1111, 0x0322, 0x1111, 0x0221, 0x1111, 0x0221, 0x1100, 0x0211, 0x1000, 0x0211, 0x1100, 0x0000,
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0x3322, 0x2322, 0x1111, 0x0322, 0x1111, 0x0221, 0x1111, 0x0221, 0x1100, 0x0211, 0x1100, 0x0021, 0x1100, 0x0000
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};
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const Word16 bit_allocation_offset_tbl[] =
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{
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0x0002, 0x000E, 0x001E, 0x0032, 0x004A, 0x0066, 0x0086, 0x00AA, 0x00D2, 0x00FE, 0x012E, 0x0162
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};
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//-----------------------------------------------------------------------------
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//
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// Log Magnitude Prediction Residual Block Length
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//
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//-----------------------------------------------------------------------------
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const Word32 lmprbl_tbl[] =
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{
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0x11122200,
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0x11222200,
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0x12222200,
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0x22222200,
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0x22222300,
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0x22223300,
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0x22233300,
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0x22333300,
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0x23333300,
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0x33333300,
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0x33333400,
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0x33334400,
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0x33344400,
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0x33444400,
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0x34444400,
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0x44444400,
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0x44444500,
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0x44445500,
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0x44455500,
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0x44555500,
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0x45555500,
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0x55555500,
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0x55555600,
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0x55556600,
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0x55566600,
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0x55666600,
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0x56666600,
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0x66666600,
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0x66666700,
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0x66667700,
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0x66677700,
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0x66777700,
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0x67777700,
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0x77777700,
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0x77777800,
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0x77778800,
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0x77788800,
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0x77888800,
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0x78888800,
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0x88888800,
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0x88888900,
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0x88889900,
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0x88899900,
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0x88999900,
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0x89999900,
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0x99999900,
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0x99999A00,
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0x9999AA00
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};
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//-----------------------------------------------------------------------------
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//
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// Gain Quantizer Levels in signed Q5.11 format
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//
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//-----------------------------------------------------------------------------
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const Word16 gain_qnt_tbl[] =
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{
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-5821, -5518, -5239, -4880, -4549, -4292, -4057, -3760, -3370, -2903,
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-2583, -2305, -1962, -1601, -1138, -711, -302, 57, 433, 795,
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1132, 1510, 1909, 2333, 2705, 3038, 3376, 3689, 3979, 4339,
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4754, 5129, 5435, 5695, 5991, 6300, 6596, 6969, 7342, 7751,
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8101, 8511, 8835, 9102, 9375, 9698, 10055, 10415, 10762, 11084,
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11403, 11752, 12123, 12468, 12863, 13239, 13615, 13997, 14382, 14770,
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15301, 15849, 16640, 17809
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};
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//-----------------------------------------------------------------------------
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//
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// Gain Ste Size in unsigned Q0.16 format
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//
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//-----------------------------------------------------------------------------
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const UWord16 gain_step_size_tbl[] =
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{
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203, 263, 220, 190, 173,
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406, 263, 440, 380, 346,
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813, 527, 440, 760, 692,
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813, 1054, 881, 760, 692,
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1625, 1054, 881, 1425, 1298,
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1625, 1976, 1652, 1425, 1298,
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1625, 1976, 1652, 1425, 2422,
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3047, 1976, 1652, 2661, 2422,
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3047, 1976, 3083, 2661, 2422,
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3047, 3688, 3083, 2661, 2422,
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3047, 3688, 3083, 3801, 3460,
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3047, 3688, 3083, 3801, 3460,
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5689, 3688, 3083, 3801, 3460,
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5689, 3688, 4404, 3801, 3460,
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5689, 5269, 4404, 3801, 3460,
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5689, 5269, 4404, 3801, 3460,
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5689, 5269, 4404, 3801, 5623,
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5689, 5269, 4404, 6177, 5623,
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5689, 5269, 4404, 6177, 5623,
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8126, 5269, 4404, 6177, 5623,
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8126, 5269, 4404, 6177, 5623,
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8126, 5269, 4404, 6177, 5623,
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8126, 5269, 7157, 6177, 5623,
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8126, 5269, 7157, 6177, 5623,
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8126, 8562, 7157, 6177, 5623,
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8126, 8562, 7157, 6177, 5623,
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8126, 8562, 7157, 6177, 5623,
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8126, 8562, 7157, 6177, 5623,
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8126, 8562, 7157, 6177, 7353,
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8126, 8562, 7157, 6177, 7353,
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8126, 8562, 7157, 6177, 7353,
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8126, 8562, 7157, 6177, 7353,
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8126, 8562, 7157, 8077, 7353,
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8126, 8562, 7157, 8077, 7353,
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8126, 8562, 7157, 8077, 7353,
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8126, 8562, 7157, 8077, 7353,
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8126, 8562, 7157, 8077, 7353,
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13206, 8562, 7157, 8077, 7353,
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13206, 8562, 7157, 8077, 7353,
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13206, 8562, 7157, 8077, 7353,
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13206, 8562, 7157, 8077, 7353,
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13206, 8562, 7157, 8077, 7353,
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13206, 8562, 7157, 8077, 7353,
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13206, 8562, 9359, 8077, 7353,
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13206, 8562, 9359, 8077, 7353,
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13206, 8562, 9359, 8077, 7353,
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13206, 8562, 9359, 8077, 7353,
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13206, 8562, 9359, 8077, 7353
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};
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//-----------------------------------------------------------------------------
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//
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// Standard Deviation of Higher Order DCT Coefficients in unsigned Q0.16 format
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//
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//-----------------------------------------------------------------------------
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const UWord16 hi_ord_std_tbl[] =
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{
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20120, 15794, 13566, 12452, 11731, 11338, 10813, 11141, 11141
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};
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//-----------------------------------------------------------------------------
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//
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// Quantizer Step for Higher Order DCT Coefficients in unsigned Q1.15 format
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//
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//-----------------------------------------------------------------------------
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const UWord16 hi_ord_step_size_tbl[] =
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{
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39322, 27853, 21299, 13107, 9175, 4915, 2621, 1311, 655, 328
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};
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//-----------------------------------------------------------------------------
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//
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// Speech Synthesis Window
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//
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//-----------------------------------------------------------------------------
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const Word16 ws[49] =
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{
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655, 1310, 1966, 2621, 3276, 3932, 4587, 5242, 5898, 6553,
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7208, 7864, 8519, 9175, 9830, 10485, 11141, 11796, 12451, 13107,
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13762, 14417, 15073, 15728, 16384, 17039, 17694, 18350, 19005, 19660,
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20316, 20971, 21626, 22282, 22937, 23592, 24248, 24903, 25559, 26214,
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26869, 27525, 28180, 28835, 29491, 30146, 30801, 31457, 32112
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};
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/*
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const Word16 ws_ws[49] =
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{
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17052, 17746, 18467, 19212, 19980, 20770, 21580, 22407, 23246, 24094,
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24945, 25793, 26631, 27453, 28248, 29008, 29724, 30385, 30983, 31507,
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31950, 32302, 32559, 32715, 32767, 32715, 32559, 32302, 31950, 31507,
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30983, 30385, 29724, 29008, 28248, 27453, 26631, 25793, 24945, 24094,
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23246, 22407, 21580, 20770, 19980, 19212, 18467, 17746, 17052
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};
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*/
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//-----------------------------------------------------------------------------
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//
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// Squared Pitch Estimation Window 64*wi^2
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//
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//-----------------------------------------------------------------------------
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const Word16 wi[301] =
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{
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15, 18, 21, 25, 29, 34, 40, 46, 52, 59,
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67, 76, 86, 96, 108, 120, 133, 148, 164, 180,
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199, 218, 239, 261, 285, 311, 338, 367, 398, 431,
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465, 502, 541, 582, 625, 671, 719, 769, 822, 878,
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936, 997, 1061, 1128, 1198, 1271, 1347, 1426, 1508, 1594,
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1683, 1775, 1871, 1970, 2073, 2179, 2289, 2403, 2520, 2641,
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2766, 2894, 3026, 3162, 3301, 3445, 3592, 3742, 3897, 4055,
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4216, 4382, 4551, 4723, 4899, 5078, 5261, 5447, 5636, 5828,
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6023, 6221, 6423, 6626, 6833, 7042, 7253, 7467, 7683, 7900,
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8120, 8341, 8564, 8788, 9014, 9241, 9468, 9696, 9925, 10154,
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10383, 10613, 10842, 11070, 11298, 11525, 11752, 11977, 12200, 12422,
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12642, 12860, 13076, 13289, 13500, 13708, 13912, 14114, 14312, 14506,
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14696, 14882, 15064, 15242, 15414, 15582, 15745, 15903, 16055, 16202,
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16343, 16478, 16608, 16731, 16848, 16958, 17062, 17159, 17250, 17333,
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17410, 17480, 17542, 17597, 17646, 17686, 17720, 17746, 17764, 17776,
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17779, 17776, 17764, 17746, 17720, 17686, 17646, 17597, 17542, 17480,
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17410, 17333, 17250, 17159, 17062, 16958, 16848, 16731, 16608, 16478,
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16343, 16202, 16055, 15903, 15745, 15582, 15414, 15242, 15064, 14882,
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14696, 14506, 14312, 14114, 13912, 13708, 13500, 13289, 13076, 12860,
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12642, 12422, 12200, 11977, 11752, 11525, 11298, 11070, 10842, 10613,
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10383, 10154, 9925, 9696, 9468, 9241, 9014, 8788, 8564, 8341,
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8120, 7900, 7683, 7467, 7253, 7042, 6833, 6626, 6423, 6221,
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6023, 5828, 5636, 5447, 5261, 5078, 4899, 4723, 4551, 4382,
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4216, 4055, 3897, 3742, 3592, 3445, 3301, 3162, 3026, 2894,
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2766, 2641, 2520, 2403, 2289, 2179, 2073, 1970, 1871, 1775,
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1683, 1594, 1508, 1426, 1347, 1271, 1198, 1128, 1061, 997,
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936, 878, 822, 769, 719, 671, 625, 582, 541, 502,
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465, 431, 398, 367, 338, 311, 285, 261, 239, 218,
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199, 180, 164, 148, 133, 120, 108, 96, 86, 76,
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67, 59, 52, 46, 40, 34, 29, 25, 21, 18,
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15
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};
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//-----------------------------------------------------------------------------
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//
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// Pitch Refinement Window
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//
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//-----------------------------------------------------------------------------
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const Word16 wr[] =
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{
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487, 570, 658, 753, 854, 962, 1076, 1197, 1325, 1460,
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1602, 1752, 1909, 2074, 2246, 2426, 2614, 2810, 3014, 3227,
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3447, 3675, 3912, 4157, 4410, 4671, 4941, 5219, 5505, 5799,
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6101, 6411, 6729, 7054, 7388, 7728, 8077, 8432, 8795, 9164,
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9541, 9923, 10312, 10707, 11108, 11515, 11927, 12344, 12766, 13192,
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13622, 14056, 14494, 14935, 15379, 15825, 16273, 16724, 17175, 17628,
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18081, 18534, 18988, 19440, 19892, 20342, 20790, 21237, 21680, 22120,
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22557, 22990, 23419, 23842, 24261, 24673, 25080, 25480, 25874, 26259,
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26638, 27008, 27370, 27722, 28066, 28400, 28724, 29037, 29340, 29632,
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29912, 30181, 30438, 30683, 30915, 31135, 31341, 31535, 31715, 31881,
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32033, 32172, 32296, 32406, 32502, 32583, 32649, 32701, 32738, 32760,
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};
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//-----------------------------------------------------------------------------
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//
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// Real Part Spectrum of Pitch Refinement Window * 256
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//
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//-----------------------------------------------------------------------------
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const Word16 wr_sp[] =
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{
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16, 43, 71, 102, 135, 170, 207, 247, 289, 333,
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380, 430, 483, 538, 596, 657, 721, 787, 857, 930,
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1006, 1085, 1168, 1254, 1343, 1435, 1531, 1630, 1733, 1840,
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1950, 2063, 2181, 2302, 2426, 2555, 2687, 2823, 2962, 3106,
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3253, 3404, 3559, 3718, 3881, 4047, 4218, 4392, 4570, 4751,
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4937, 5126, 5319, 5516, 5716, 5920, 6128, 6339, 6554, 6772,
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6994, 7219, 7447, 7679, 7914, 8152, 8393, 8637, 8884, 9134,
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9387, 9642, 9900, 10160, 10423, 10688, 10956, 11225, 11497, 11770,
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12045, 12322, 12601, 12881, 13162, 13444, 13728, 14012, 14298, 14584,
|
|
14871, 15158, 15445, 15733, 16020, 16308, 16595, 16882, 17168, 17454,
|
|
17738, 18022, 18305, 18586, 18866, 19145, 19421, 19696, 19969, 20240,
|
|
20508, 20774, 21037, 21298, 21556, 21811, 22062, 22310, 22555, 22796,
|
|
23033, 23267, 23496, 23722, 23943, 24159, 24372, 24579, 24782, 24980,
|
|
25172, 25360, 25542, 25719, 25891, 26057, 26217, 26372, 26520, 26663,
|
|
26800, 26930, 27055, 27173, 27285, 27390, 27489, 27581, 27667, 27746,
|
|
27818, 27884, 27942, 27994, 28039, 28078, 28109, 28133, 28151, 28161,
|
|
28165, 28161, 28151, 28133, 28109, 28078, 28039, 27994, 27942, 27884,
|
|
27818, 27746, 27667, 27581, 27489, 27390, 27285, 27173, 27055, 26930,
|
|
26800, 26663, 26520, 26372, 26217, 26057, 25891, 25719, 25542, 25360,
|
|
25172, 24980, 24782, 24579, 24372, 24159, 23943, 23722, 23496, 23267,
|
|
23033, 22796, 22555, 22310, 22062, 21811, 21556, 21298, 21037, 20774,
|
|
20508, 20240, 19969, 19696, 19421, 19145, 18866, 18586, 18305, 18022,
|
|
17738, 17454, 17168, 16882, 16595, 16308, 16020, 15733, 15445, 15158,
|
|
14871, 14584, 14298, 14012, 13728, 13444, 13162, 12881, 12601, 12322,
|
|
12045, 11770, 11497, 11225, 10956, 10688, 10423, 10160, 9900, 9642,
|
|
9387, 9134, 8884, 8637, 8393, 8152, 7914, 7679, 7447, 7219,
|
|
6994, 6772, 6554, 6339, 6128, 5920, 5716, 5516, 5319, 5126,
|
|
4937, 4751, 4570, 4392, 4218, 4047, 3881, 3718, 3559, 3404,
|
|
3253, 3106, 2962, 2823, 2687, 2555, 2426, 2302, 2181, 2063,
|
|
1950, 1840, 1733, 1630, 1531, 1435, 1343, 1254, 1168, 1085,
|
|
1006, 930, 857, 787, 721, 657, 596, 538, 483, 430,
|
|
380, 333, 289, 247, 207, 170, 135, 102, 71, 43,
|
|
16
|
|
};
|
|
|