52f17dfe9d
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27225 a1c6a512-1295-4272-9138-f99709370657
179 lines
4.7 KiB
C
179 lines
4.7 KiB
C
/*
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** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding
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** Copyright (C) 2003 M. Bakker, Ahead Software AG, http://www.nero.com
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** 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 program; if not, write to the Free Software
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** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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**
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** Any non-GPL usage of this software or parts of this software is strictly
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** forbidden.
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**
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** Commercial non-GPL licensing of this software is possible.
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** For more info contact Ahead Software through Mpeg4AAClicense@nero.com.
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**
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** $Id$
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**/
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/* 2-step huffman table HCB_6 */
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/* 1st step: 5 bits
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* 2^5 = 32 entries
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*
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* Used to find offset into 2nd step table and number of extra bits to get
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*/
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static hcb hcb6_1[] ICONST_ATTR = {
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/* 4 bit codewords */
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{ /* 00000 */ 0, 0 },
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{ /* */ 0, 0 },
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{ /* 00010 */ 1, 0 },
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{ /* */ 1, 0 },
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{ /* 00100 */ 2, 0 },
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{ /* */ 2, 0 },
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{ /* 00110 */ 3, 0 },
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{ /* */ 3, 0 },
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{ /* 01000 */ 4, 0 },
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{ /* */ 4, 0 },
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{ /* 01010 */ 5, 0 },
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{ /* */ 5, 0 },
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{ /* 01100 */ 6, 0 },
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{ /* */ 6, 0 },
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{ /* 01110 */ 7, 0 },
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{ /* */ 7, 0 },
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{ /* 10000 */ 8, 0 },
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{ /* */ 8, 0 },
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/* 6 bit codewords */
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{ /* 10010 */ 9, 1 },
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{ /* 10011 */ 11, 1 },
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{ /* 10100 */ 13, 1 },
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{ /* 10101 */ 15, 1 },
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{ /* 10110 */ 17, 1 },
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{ /* 10111 */ 19, 1 },
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{ /* 11000 */ 21, 1 },
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{ /* 11001 */ 23, 1 },
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/* 7 bit codewords */
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{ /* 11010 */ 25, 2 },
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{ /* 11011 */ 29, 2 },
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{ /* 11100 */ 33, 2 },
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/* 7/8 bit codewords */
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{ /* 11101 */ 37, 3 },
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/* 8/9 bit codewords */
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{ /* 11110 */ 45, 4 },
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/* 9/10/11 bit codewords */
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{ /* 11111 */ 61, 6 }
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};
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/* 2nd step table
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*
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* Gives size of codeword and actual data (x,y,v,w)
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*/
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static hcb_2_pair hcb6_2[] ICONST_ATTR = {
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/* 4 bit codewords */
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{ 4, 0, 0 },
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{ 4, 1, 0 },
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{ 4, 0, -1 },
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{ 4, 0, 1 },
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{ 4, -1, 0 },
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{ 4, 1, 1 },
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{ 4, -1, 1 },
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{ 4, 1, -1 },
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{ 4, -1, -1 },
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/* 6 bit codewords */
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{ 6, 2, -1 },
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{ 6, 2, 1 },
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{ 6, -2, 1 },
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{ 6, -2, -1 },
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{ 6, -2, 0 },
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{ 6, -1, 2 },
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{ 6, 2, 0 },
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{ 6, 1, -2 },
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{ 6, 1, 2 },
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{ 6, 0, -2 },
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{ 6, -1, -2 },
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{ 6, 0, 2 },
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{ 6, 2, -2 },
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{ 6, -2, 2 },
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{ 6, -2, -2 },
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{ 6, 2, 2 },
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/* 7 bit codewords */
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{ 7, -3, 1 },
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{ 7, 3, 1 },
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{ 7, 3, -1 },
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{ 7, -1, 3 },
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{ 7, -3, -1 },
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{ 7, 1, 3 },
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{ 7, 1, -3 },
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{ 7, -1, -3 },
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{ 7, 3, 0 },
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{ 7, -3, 0 },
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{ 7, 0, -3 },
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{ 7, 0, 3 },
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/* 7/8 bit codewords */
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{ 7, 3, 2 }, { 7, 3, 2 },
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{ 8, -3, -2 },
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{ 8, -2, 3 },
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{ 8, 2, 3 },
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{ 8, 3, -2 },
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{ 8, 2, -3 },
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{ 8, -2, -3 },
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/* 8 bit codewords */
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{ 8, -3, 2 }, { 8, -3, 2 },
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{ 8, 3, 3 }, { 8, 3, 3 },
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{ 9, 3, -3 },
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{ 9, -3, -3 },
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{ 9, -3, 3 },
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{ 9, 1, -4 },
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{ 9, -1, -4 },
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{ 9, 4, 1 },
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{ 9, -4, 1 },
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{ 9, -4, -1 },
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{ 9, 1, 4 },
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{ 9, 4, -1 },
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{ 9, -1, 4 },
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{ 9, 0, -4 },
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/* 9/10/11 bit codewords */
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{ 9, -4, 2 }, { 9, -4, 2 }, { 9, -4, 2 }, { 9, -4, 2 },
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{ 9, -4, -2 }, { 9, -4, -2 }, { 9, -4, -2 }, { 9, -4, -2 },
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{ 9, 2, 4 }, { 9, 2, 4 }, { 9, 2, 4 }, { 9, 2, 4 },
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{ 9, -2, -4 }, { 9, -2, -4 }, { 9, -2, -4 }, { 9, -2, -4 },
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{ 9, -4, 0 }, { 9, -4, 0 }, { 9, -4, 0 }, { 9, -4, 0 },
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{ 9, 4, 2 }, { 9, 4, 2 }, { 9, 4, 2 }, { 9, 4, 2 },
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{ 9, 4, -2 }, { 9, 4, -2 }, { 9, 4, -2 }, { 9, 4, -2 },
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{ 9, -2, 4 }, { 9, -2, 4 }, { 9, -2, 4 }, { 9, -2, 4 },
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{ 9, 4, 0 }, { 9, 4, 0 }, { 9, 4, 0 }, { 9, 4, 0 },
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{ 9, 2, -4 }, { 9, 2, -4 }, { 9, 2, -4 }, { 9, 2, -4 },
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{ 9, 0, 4 }, { 9, 0, 4 }, { 9, 0, 4 }, { 9, 0, 4 },
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{ 10, -3, -4 }, { 10, -3, -4 },
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{ 10, -3, 4 }, { 10, -3, 4 },
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{ 10, 3, -4 }, { 10, 3, -4 },
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{ 10, 4, -3 }, { 10, 4, -3 },
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{ 10, 3, 4 }, { 10, 3, 4 },
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{ 10, 4, 3 }, { 10, 4, 3 },
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{ 10, -4, 3 }, { 10, -4, 3 },
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{ 10, -4, -3 }, { 10, -4, -3 },
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{ 11, 4, 4 },
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{ 11, -4, 4 },
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{ 11, -4, -4 },
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{ 11, 4, -4 }
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};
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