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_2.h | 185 +++++++++++++++++++++++++++++++++++++ 1 file changed, 185 insertions(+) create mode 100644 faad2/src/libfaad/codebook/hcb_2.h (limited to 'faad2/src/libfaad/codebook/hcb_2.h') diff --git a/faad2/src/libfaad/codebook/hcb_2.h b/faad2/src/libfaad/codebook/hcb_2.h new file mode 100644 index 0000000..4e98af8 --- /dev/null +++ b/faad2/src/libfaad/codebook/hcb_2.h @@ -0,0 +1,185 @@ +/* +** 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_2.h,v 1.5 2007/11/01 12:34:11 menno Exp $ +**/ + +/* 2-step huffman table HCB_2 */ + + +/* 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 hcb2_1[] = { + { /* 00000 */ 0, 0 }, + { /* */ 0, 0 }, + { /* */ 0, 0 }, + { /* */ 0, 0 }, + { /* 00100 */ 1, 0 }, + { /* */ 1, 0 }, + { /* 00110 */ 2, 0 }, + { /* 00111 */ 3, 0 }, + { /* 01000 */ 4, 0 }, + { /* 01001 */ 5, 0 }, + { /* 01010 */ 6, 0 }, + { /* 01011 */ 7, 0 }, + { /* 01100 */ 8, 0 }, + + /* 6 bit codewords */ + { /* 01101 */ 9, 1 }, + { /* 01110 */ 11, 1 }, + { /* 01111 */ 13, 1 }, + { /* 10000 */ 15, 1 }, + { /* 10001 */ 17, 1 }, + { /* 10010 */ 19, 1 }, + { /* 10011 */ 21, 1 }, + { /* 10100 */ 23, 1 }, + { /* 10101 */ 25, 1 }, + { /* 10110 */ 27, 1 }, + { /* 10111 */ 29, 1 }, + { /* 11000 */ 31, 1 }, + + /* 7 bit codewords */ + { /* 11001 */ 33, 2 }, + { /* 11010 */ 37, 2 }, + { /* 11011 */ 41, 2 }, + + /* 7/8 bit codewords */ + { /* 11100 */ 45, 3 }, + + /* 8 bit codewords */ + { /* 11101 */ 53, 3 }, + { /* 11110 */ 61, 3 }, + + /* 8/9 bit codewords */ + { /* 11111 */ 69, 4 } +}; + +/* 2nd step table + * + * Gives size of codeword and actual data (x,y,v,w) + */ +static hcb_2_quad hcb2_2[] = { + /* 3 bit codeword */ + { 3, 0, 0, 0, 0 }, + + /* 4 bit codeword */ + { 4, 1, 0, 0, 0 }, + + /* 5 bit codewords */ + { 5, -1, 0, 0, 0 }, + { 5, 0, 0, 0, 1 }, + { 5, 0, 0, -1, 0 }, + { 5, 0, 0, 0, -1 }, + { 5, 0, -1, 0, 0 }, + { 5, 0, 0, 1, 0 }, + { 5, 0, 1, 0, 0 }, + + /* 6 bit codewords */ + { 6, 0, -1, 1, 0 }, + { 6, -1, 1, 0, 0 }, + { 6, 0, 1, -1, 0 }, + { 6, 0, 0, 1, -1 }, + { 6, 0, 1, 0, -1 }, + { 6, 0, 0, -1, 1 }, + { 6, -1, 0, 0, -1 }, + { 6, 1, -1, 0, 0 }, + { 6, 1, 0, -1, 0 }, + { 6, -1, -1, 0, 0 }, + { 6, 0, 0, -1, -1 }, + { 6, 1, 0, 1, 0 }, + { 6, 1, 0, 0, 1 }, + { 6, 0, -1, 0, 1 }, + { 6, -1, 0, 1, 0 }, + { 6, 0, 1, 0, 1 }, + { 6, 0, -1, -1, 0 }, + { 6, -1, 0, 0, 1 }, + { 6, 0, -1, 0, -1 }, + { 6, -1, 0, -1, 0 }, + { 6, 1, 1, 0, 0 }, + { 6, 0, 1, 1, 0 }, + { 6, 0, 0, 1, 1 }, + { 6, 1, 0, 0, -1 }, + + /* 7 bit codewords */ + { 7, 0, 1, -1, 1 }, + { 7, 1, 0, -1, 1 }, + { 7, -1, 1, -1, 0 }, + { 7, 0, -1, 1, -1 }, + { 7, 1, -1, 1, 0 }, + { 7, 1, 1, 0, -1 }, + { 7, 1, 0, 1, 1 }, + { 7, -1, 1, 1, 0 }, + { 7, 0, -1, -1, 1 }, + { 7, 1, 1, 1, 0 }, + { 7, -1, 0, 1, -1 }, + { 7, -1, -1, -1, 0 }, + + /* 7/8 bit codewords */ + { 7, -1, 0, -1, 1 }, { 7, -1, 0, -1, 1 }, + { 7, 1, -1, -1, 0 }, { 7, 1, -1, -1, 0 }, + { 7, 1, 1, -1, 0 }, { 7, 1, 1, -1, 0 }, + { 8, 1, -1, 0, 1 }, + { 8, -1, 1, 0, -1 }, + + /* 8 bit codewords */ + { 8, -1, -1, 1, 0 }, + { 8, -1, 0, 1, 1 }, + { 8, -1, -1, 0, 1 }, + { 8, -1, -1, 0, -1 }, + { 8, 0, -1, -1, -1 }, + { 8, 1, 0, 1, -1 }, + { 8, 1, 0, -1, -1 }, + { 8, 0, 1, -1, -1 }, + { 8, 0, 1, 1, 1 }, + { 8, -1, 1, 0, 1 }, + { 8, -1, 0, -1, -1 }, + { 8, 0, 1, 1, -1 }, + { 8, 1, -1, 0, -1 }, + { 8, 0, -1, 1, 1 }, + { 8, 1, 1, 0, 1 }, + { 8, 1, -1, 1, -1 }, + + /* 8/9 bit codewords */ + { 8, -1, 1, -1, 1 }, { 8, -1, 1, -1, 1 }, + { 9, 1, -1, -1, 1 }, + { 9, -1, -1, -1, -1 }, + { 9, -1, 1, 1, -1 }, + { 9, -1, 1, 1, 1 }, + { 9, 1, 1, 1, 1 }, + { 9, -1, -1, 1, -1 }, + { 9, 1, -1, 1, 1 }, + { 9, -1, 1, -1, -1 }, + { 9, -1, -1, 1, 1 }, + { 9, 1, 1, -1, -1 }, + { 9, 1, -1, -1, -1 }, + { 9, -1, -1, -1, 1 }, + { 9, 1, 1, -1, 1 }, + { 9, 1, 1, 1, -1 } +}; -- cgit v1.2.3