ref: cdae0e79ef653b0166596891b9bb278cb5f1fdaa
dir: /libfaad/codebook/hcb_8.c/
/*
** FAAD - Freeware Advanced Audio Decoder
** Copyright (C) 2002 M. Bakker
**
** 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.
**
** $Id: hcb_8.c,v 1.2 2002/02/18 10:01:05 menno Exp $
**/
#include "../common.h"
#include "hcb.h"
/* 2-step huffman table HCB_8 */
/* 1st step: 5 bits
* 2^5 = 32 entries
*
* Used to find offset into 2nd step table and number of extra bits to get
*/
extern hcb hcb8_1[] = {
/* 3 bit codeword */
{ /* 00000 */ 0, 0 },
{ /* */ 0, 0 },
{ /* */ 0, 0 },
{ /* */ 0, 0 },
/* 4 bit codewords */
{ /* 00100 */ 1, 0 },
{ /* */ 1, 0 },
{ /* 00110 */ 2, 0 },
{ /* */ 2, 0 },
{ /* 01000 */ 3, 0 },
{ /* */ 3, 0 },
{ /* 01010 */ 4, 0 },
{ /* */ 4, 0 },
{ /* 01100 */ 5, 0 },
{ /* */ 5, 0 },
/* 5 bit codewords */
{ /* 01110 */ 6, 0 },
{ /* 01111 */ 7, 0 },
{ /* 10000 */ 8, 0 },
{ /* 10001 */ 9, 0 },
{ /* 10010 */ 10, 0 },
{ /* 10011 */ 11, 0 },
{ /* 10100 */ 12, 0 },
/* 6 bit codewords */
{ /* 10101 */ 13, 1 },
{ /* 10110 */ 15, 1 },
{ /* 10111 */ 17, 1 },
{ /* 11000 */ 19, 1 },
{ /* 11001 */ 21, 1 },
/* 7 bit codewords */
{ /* 11010 */ 23, 2 },
{ /* 11011 */ 27, 2 },
{ /* 11100 */ 31, 2 },
/* 7/8 bit codewords */
{ /* 11101 */ 35, 3 },
/* 8 bit codewords */
{ /* 11110 */ 43, 3 },
/* 8/9/10 bit codewords */
{ /* 11111 */ 51, 5 }
};
/* 2nd step table
*
* Gives size of codeword and actual data (x,y,v,w)
*/
extern hcb_2_pair hcb8_2[] = {
/* 3 bit codeword */
{ 3, 1, 1 },
/* 4 bit codewords */
{ 4, 2, 1 },
{ 4, 1, 0 },
{ 4, 1, 2 },
{ 4, 0, 1 },
{ 4, 2, 2 },
/* 5 bit codewords */
{ 5, 0, 0 },
{ 5, 2, 0 },
{ 5, 0, 2 },
{ 5, 3, 1 },
{ 5, 1, 3 },
{ 5, 3, 2 },
{ 5, 2, 3 },
/* 6 bit codewords */
{ 6, 3, 3 },
{ 6, 4, 1 },
{ 6, 1, 4 },
{ 6, 4, 2 },
{ 6, 2, 4 },
{ 6, 3, 0 },
{ 6, 0, 3 },
{ 6, 4, 3 },
{ 6, 3, 4 },
{ 6, 5, 2 },
/* 7 bit codewords */
{ 7, 5, 1 },
{ 7, 2, 5 },
{ 7, 1, 5 },
{ 7, 5, 3 },
{ 7, 3, 5 },
{ 7, 4, 4 },
{ 7, 5, 4 },
{ 7, 0, 4 },
{ 7, 4, 5 },
{ 7, 4, 0 },
{ 7, 2, 6 },
{ 7, 6, 2 },
/* 7/8 bit codewords */
{ 7, 6, 1 }, { 7, 6, 1 },
{ 7, 1, 6 }, { 7, 1, 6 },
{ 8, 3, 6 },
{ 8, 6, 3 },
{ 8, 5, 5 },
{ 8, 5, 0 },
/* 8 bit codewords */
{ 8, 6, 4 },
{ 8, 0, 5 },
{ 8, 4, 6 },
{ 8, 7, 1 },
{ 8, 7, 2 },
{ 8, 2, 7 },
{ 8, 6, 5 },
{ 8, 7, 3 },
/* 8/9/10 bit codewords */
{ 8, 1, 7 }, { 8, 1, 7 }, { 8, 1, 7 }, { 8, 1, 7 },
{ 8, 5, 6 }, { 8, 5, 6 }, { 8, 5, 6 }, { 8, 5, 6 },
{ 8, 3, 7 }, { 8, 3, 7 }, { 8, 3, 7 }, { 8, 3, 7 },
{ 9, 6, 6 }, { 9, 6, 6 },
{ 9, 7, 4 }, { 9, 7, 4 },
{ 9, 6, 0 }, { 9, 6, 0 },
{ 9, 4, 7 }, { 9, 4, 7 },
{ 9, 0, 6 }, { 9, 0, 6 },
{ 9, 7, 5 }, { 9, 7, 5 },
{ 9, 7, 6 }, { 9, 7, 6 },
{ 9, 6, 7 }, { 9, 6, 7 },
{ 10, 5, 7 },
{ 10, 7, 0 },
{ 10, 0, 7 },
{ 10, 7, 7 }
};