From cc2160de5cc05dc3aa77f3a34358e66f6193c8c9 Mon Sep 17 00:00:00 2001 From: Michał Cichoń Date: Tue, 26 Jun 2012 20:35:30 +0200 Subject: Add support for AAC. --- faad2/src/libfaad/codebook/hcb_6.h | 182 +++++++++++++++++++++++++++++++++++++ 1 file changed, 182 insertions(+) create mode 100644 faad2/src/libfaad/codebook/hcb_6.h (limited to 'faad2/src/libfaad/codebook/hcb_6.h') diff --git a/faad2/src/libfaad/codebook/hcb_6.h b/faad2/src/libfaad/codebook/hcb_6.h new file mode 100644 index 0000000..849a6e4 --- /dev/null +++ b/faad2/src/libfaad/codebook/hcb_6.h @@ -0,0 +1,182 @@ +/* +** 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 Mpeg4AAClicense@nero.com. +** +** $Id: hcb_6.h,v 1.5 2007/11/01 12:34:11 menno Exp $ +**/ + +/* 2-step huffman table HCB_6 */ + + +/* 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 hcb6_1[] = { + /* 4 bit codewords */ + { /* 00000 */ 0, 0 }, + { /* */ 0, 0 }, + { /* 00010 */ 1, 0 }, + { /* */ 1, 0 }, + { /* 00100 */ 2, 0 }, + { /* */ 2, 0 }, + { /* 00110 */ 3, 0 }, + { /* */ 3, 0 }, + { /* 01000 */ 4, 0 }, + { /* */ 4, 0 }, + { /* 01010 */ 5, 0 }, + { /* */ 5, 0 }, + { /* 01100 */ 6, 0 }, + { /* */ 6, 0 }, + { /* 01110 */ 7, 0 }, + { /* */ 7, 0 }, + { /* 10000 */ 8, 0 }, + { /* */ 8, 0 }, + + /* 6 bit codewords */ + { /* 10010 */ 9, 1 }, + { /* 10011 */ 11, 1 }, + { /* 10100 */ 13, 1 }, + { /* 10101 */ 15, 1 }, + { /* 10110 */ 17, 1 }, + { /* 10111 */ 19, 1 }, + { /* 11000 */ 21, 1 }, + { /* 11001 */ 23, 1 }, + + /* 7 bit codewords */ + { /* 11010 */ 25, 2 }, + { /* 11011 */ 29, 2 }, + { /* 11100 */ 33, 2 }, + + /* 7/8 bit codewords */ + { /* 11101 */ 37, 3 }, + + /* 8/9 bit codewords */ + { /* 11110 */ 45, 4 }, + + /* 9/10/11 bit codewords */ + { /* 11111 */ 61, 6 } +}; + +/* 2nd step table + * + * Gives size of codeword and actual data (x,y,v,w) + */ +static hcb_2_pair hcb6_2[] = { + /* 4 bit codewords */ + { 4, 0, 0 }, + { 4, 1, 0 }, + { 4, 0, -1 }, + { 4, 0, 1 }, + { 4, -1, 0 }, + { 4, 1, 1 }, + { 4, -1, 1 }, + { 4, 1, -1 }, + { 4, -1, -1 }, + + /* 6 bit codewords */ + { 6, 2, -1 }, + { 6, 2, 1 }, + { 6, -2, 1 }, + { 6, -2, -1 }, + { 6, -2, 0 }, + { 6, -1, 2 }, + { 6, 2, 0 }, + { 6, 1, -2 }, + { 6, 1, 2 }, + { 6, 0, -2 }, + { 6, -1, -2 }, + { 6, 0, 2 }, + { 6, 2, -2 }, + { 6, -2, 2 }, + { 6, -2, -2 }, + { 6, 2, 2 }, + + /* 7 bit codewords */ + { 7, -3, 1 }, + { 7, 3, 1 }, + { 7, 3, -1 }, + { 7, -1, 3 }, + { 7, -3, -1 }, + { 7, 1, 3 }, + { 7, 1, -3 }, + { 7, -1, -3 }, + { 7, 3, 0 }, + { 7, -3, 0 }, + { 7, 0, -3 }, + { 7, 0, 3 }, + + /* 7/8 bit codewords */ + { 7, 3, 2 }, { 7, 3, 2 }, + { 8, -3, -2 }, + { 8, -2, 3 }, + { 8, 2, 3 }, + { 8, 3, -2 }, + { 8, 2, -3 }, + { 8, -2, -3 }, + + /* 8 bit codewords */ + { 8, -3, 2 }, { 8, -3, 2 }, + { 8, 3, 3 }, { 8, 3, 3 }, + { 9, 3, -3 }, + { 9, -3, -3 }, + { 9, -3, 3 }, + { 9, 1, -4 }, + { 9, -1, -4 }, + { 9, 4, 1 }, + { 9, -4, 1 }, + { 9, -4, -1 }, + { 9, 1, 4 }, + { 9, 4, -1 }, + { 9, -1, 4 }, + { 9, 0, -4 }, + + /* 9/10/11 bit codewords */ + { 9, -4, 2 }, { 9, -4, 2 }, { 9, -4, 2 }, { 9, -4, 2 }, + { 9, -4, -2 }, { 9, -4, -2 }, { 9, -4, -2 }, { 9, -4, -2 }, + { 9, 2, 4 }, { 9, 2, 4 }, { 9, 2, 4 }, { 9, 2, 4 }, + { 9, -2, -4 }, { 9, -2, -4 }, { 9, -2, -4 }, { 9, -2, -4 }, + { 9, -4, 0 }, { 9, -4, 0 }, { 9, -4, 0 }, { 9, -4, 0 }, + { 9, 4, 2 }, { 9, 4, 2 }, { 9, 4, 2 }, { 9, 4, 2 }, + { 9, 4, -2 }, { 9, 4, -2 }, { 9, 4, -2 }, { 9, 4, -2 }, + { 9, -2, 4 }, { 9, -2, 4 }, { 9, -2, 4 }, { 9, -2, 4 }, + { 9, 4, 0 }, { 9, 4, 0 }, { 9, 4, 0 }, { 9, 4, 0 }, + { 9, 2, -4 }, { 9, 2, -4 }, { 9, 2, -4 }, { 9, 2, -4 }, + { 9, 0, 4 }, { 9, 0, 4 }, { 9, 0, 4 }, { 9, 0, 4 }, + { 10, -3, -4 }, { 10, -3, -4 }, + { 10, -3, 4 }, { 10, -3, 4 }, + { 10, 3, -4 }, { 10, 3, -4 }, + { 10, 4, -3 }, { 10, 4, -3 }, + { 10, 3, 4 }, { 10, 3, 4 }, + { 10, 4, 3 }, { 10, 4, 3 }, + { 10, -4, 3 }, { 10, -4, 3 }, + { 10, -4, -3 }, { 10, -4, -3 }, + { 11, 4, 4 }, + { 11, -4, 4 }, + { 11, -4, -4 }, + { 11, 4, -4 } +}; -- cgit v1.2.3