ref: f27df30594f3751d36c95f9d2e58a42a924b3413
dir: /libfaad/codebook/hcb_1.h/
/* ** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding ** Copyright (C) 2003-2005 M. Bakker, Nero AG, http://www.nero.com ** ** This program is free software; you can redistribute it and/or modify ** it under the terms of the GNU General Public License as published by ** the Free Software Foundation; either version 2 of the License, or ** (at your option) any later version. ** ** This program is distributed in the hope that it will be useful, ** but WITHOUT ANY WARRANTY; without even the implied warranty of ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ** GNU General Public License for more details. ** ** You should have received a copy of the GNU General Public License ** along with this program; if not, write to the Free Software ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ** ** Any non-GPL usage of this software or parts of this software is strictly ** forbidden. ** ** The "appropriate copyright message" mentioned in section 2c of the GPLv2 ** must read: "Code from FAAD2 is copyright (c) Nero AG, www.nero.com" ** ** Commercial non-GPL licensing of this software is possible. ** For more info contact Nero AG through [email protected]. ** ** $Id: hcb_1.h,v 1.5 2007/11/01 12:34:11 menno Exp $ **/ /* 2-step huffman table HCB_1 */ /* 1st step: 5 bits * 2^5 = 32 entries * * Used to find offset into 2nd step table and number of extra bits to get */ static hcb hcb1_1[] = { { /* 00000 */ 0, 0 }, { /* */ 0, 0 }, { /* */ 0, 0 }, { /* */ 0, 0 }, { /* */ 0, 0 }, { /* */ 0, 0 }, { /* */ 0, 0 }, { /* */ 0, 0 }, { /* */ 0, 0 }, { /* */ 0, 0 }, { /* */ 0, 0 }, { /* */ 0, 0 }, { /* */ 0, 0 }, { /* */ 0, 0 }, { /* */ 0, 0 }, { /* */ 0, 0 }, { /* 10000 */ 1, 0 }, { /* 10001 */ 2, 0 }, { /* 10010 */ 3, 0 }, { /* 10011 */ 4, 0 }, { /* 10100 */ 5, 0 }, { /* 10101 */ 6, 0 }, { /* 10110 */ 7, 0 }, { /* 10111 */ 8, 0 }, /* 7 bit codewords */ { /* 11000 */ 9, 2 }, { /* 11001 */ 13, 2 }, { /* 11010 */ 17, 2 }, { /* 11011 */ 21, 2 }, { /* 11100 */ 25, 2 }, { /* 11101 */ 29, 2 }, /* 9 bit codewords */ { /* 11110 */ 33, 4 }, /* 9/10/11 bit codewords */ { /* 11111 */ 49, 6 } }; /* 2nd step table * * Gives size of codeword and actual data (x,y,v,w) */ static hcb_2_quad hcb1_2[] = { /* 1 bit codeword */ { 1, 0, 0, 0, 0 }, /* 5 bit codewords */ { 5, 1, 0, 0, 0 }, { 5, -1, 0, 0, 0 }, { 5, 0, 0, 0, -1 }, { 5, 0, 1, 0, 0 }, { 5, 0, 0, 0, 1 }, { 5, 0, 0, -1, 0 }, { 5, 0, 0, 1, 0 }, { 5, 0, -1, 0, 0 }, /* 7 bit codewords */ /* first 5 bits: 11000 */ { 7, 1, -1, 0, 0 }, { 7, -1, 1, 0, 0 }, { 7, 0, 0, -1, 1 }, { 7, 0, 1, -1, 0 }, /* first 5 bits: 11001 */ { 7, 0, -1, 1, 0 }, { 7, 0, 0, 1, -1 }, { 7, 1, 1, 0, 0 }, { 7, 0, 0, -1, -1 }, /* first 5 bits: 11010 */ { 7, -1, -1, 0, 0 }, { 7, 0, -1, -1, 0 }, { 7, 1, 0, -1, 0 }, { 7, 0, 1, 0, -1 }, /* first 5 bits: 11011 */ { 7, -1, 0, 1, 0 }, { 7, 0, 0, 1, 1 }, { 7, 1, 0, 1, 0 }, { 7, 0, -1, 0, 1 }, /* first 5 bits: 11100 */ { 7, 0, 1, 1, 0 }, { 7, 0, 1, 0, 1 }, { 7, -1, 0, -1, 0 }, { 7, 1, 0, 0, 1 }, /* first 5 bits: 11101 */ { 7, -1, 0, 0, -1 }, { 7, 1, 0, 0, -1 }, { 7, -1, 0, 0, 1 }, { 7, 0, -1, 0, -1 }, /* 9 bit codeword */ /* first 5 bits: 11110 */ { 9, 1, 1, -1, 0 }, { 9, -1, 1, -1, 0 }, { 9, 1, -1, 1, 0 }, { 9, 0, 1, 1, -1 }, { 9, 0, 1, -1, 1 }, { 9, 0, -1, 1, 1 }, { 9, 0, -1, 1, -1 }, { 9, 1, -1, -1, 0 }, { 9, 1, 0, -1, 1 }, { 9, 0, 1, -1, -1 }, { 9, -1, 1, 1, 0 }, { 9, -1, 0, 1, -1 }, { 9, -1, -1, 1, 0 }, { 9, 0, -1, -1, 1 }, { 9, 1, -1, 0, 1 }, { 9, 1, -1, 0, -1 }, /* 9/10/11 bit codewords */ /* first 5 bits: 11111 */ /* 9 bit: reading 11 bits -> 2 too much so 4 entries for each codeword */ { 9, -1, 1, 0, -1 }, { 9, -1, 1, 0, -1 }, { 9, -1, 1, 0, -1 }, { 9, -1, 1, 0, -1 }, { 9, -1, -1, -1, 0 }, { 9, -1, -1, -1, 0 }, { 9, -1, -1, -1, 0 }, { 9, -1, -1, -1, 0 }, { 9, 0, -1, -1, -1 }, { 9, 0, -1, -1, -1 }, { 9, 0, -1, -1, -1 }, { 9, 0, -1, -1, -1 }, { 9, 0, 1, 1, 1 }, { 9, 0, 1, 1, 1 }, { 9, 0, 1, 1, 1 }, { 9, 0, 1, 1, 1 }, { 9, 1, 0, 1, -1 }, { 9, 1, 0, 1, -1 }, { 9, 1, 0, 1, -1 }, { 9, 1, 0, 1, -1 }, { 9, 1, 1, 0, 1 }, { 9, 1, 1, 0, 1 }, { 9, 1, 1, 0, 1 }, { 9, 1, 1, 0, 1 }, { 9, -1, 1, 0, 1 }, { 9, -1, 1, 0, 1 }, { 9, -1, 1, 0, 1 }, { 9, -1, 1, 0, 1 }, { 9, 1, 1, 1, 0 }, { 9, 1, 1, 1, 0 }, { 9, 1, 1, 1, 0 }, { 9, 1, 1, 1, 0 }, /* 10 bit: reading 11 bits -> 1 too much so 2 entries for each codeword */ { 10, -1, -1, 0, 1 }, { 10, -1, -1, 0, 1 }, { 10, -1, 0, -1, -1 }, { 10, -1, 0, -1, -1 }, { 10, 1, 1, 0, -1 }, { 10, 1, 1, 0, -1 }, { 10, 1, 0, -1, -1 }, { 10, 1, 0, -1, -1 }, { 10, -1, 0, -1, 1 }, { 10, -1, 0, -1, 1 }, { 10, -1, -1, 0, -1 }, { 10, -1, -1, 0, -1 }, { 10, -1, 0, 1, 1 }, { 10, -1, 0, 1, 1 }, { 10, 1, 0, 1, 1 }, { 10, 1, 0, 1, 1 }, /* 11 bit */ { 11, 1, -1, 1, -1 }, { 11, -1, 1, -1, 1 }, { 11, -1, 1, 1, -1 }, { 11, 1, -1, -1, 1 }, { 11, 1, 1, 1, 1 }, { 11, -1, -1, 1, 1 }, { 11, 1, 1, -1, -1 }, { 11, -1, -1, 1, -1 }, { 11, -1, -1, -1, -1 }, { 11, 1, 1, -1, 1 }, { 11, 1, -1, 1, 1 }, { 11, -1, 1, 1, 1 }, { 11, -1, 1, -1, -1 }, { 11, -1, -1, -1, 1 }, { 11, 1, -1, -1, -1 }, { 11, 1, 1, 1, -1 } };