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rockbox/apps/codecs/libfaad/codebook/hcb_4.h

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Initial check-in of unmodified libfaad (part of the FAAD2 project). This is the last version of libfaad available under the GPL - the state of FAAD2 CVS at midnight on 2005-02-01 git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7699 a1c6a512-1295-4272-9138-f99709370657
2005-10-31 18:56:29 +00:00
/*
** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding
** Copyright (C) 2003 M. Bakker, Ahead Software 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.
**
** Commercial non-GPL licensing of this software is possible.
** For more info contact Ahead Software through Mpeg4AAClicense@nero.com.
**
** $Id$
**/
/* 2-step huffman table HCB_4 */
/* 1st step: 5 bits
* 2^5 = 32 entries
*
* Used to find offset into 2nd step table and number of extra bits to get
*/
Submit FS#11445. Speed up of faad (aac) decoder via several optimizations like refactoring some requantization routines, moving several arrays and code tables to IRAM, using an optimized swap32() function and inlining several huffman decoder functions. Decoding is sped up by ~10% (PP5002, PP5022, MCF5249) and ~22% (MCF5250). git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27225 a1c6a512-1295-4272-9138-f99709370657
2010-07-01 21:18:42 +00:00
static hcb hcb4_1[] ICONST_ATTR_FAAD_LARGE_IRAM = {
Initial check-in of unmodified libfaad (part of the FAAD2 project). This is the last version of libfaad available under the GPL - the state of FAAD2 CVS at midnight on 2005-02-01 git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7699 a1c6a512-1295-4272-9138-f99709370657
2005-10-31 18:56:29 +00:00
/* 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 },
{ /* 10010 */ 9, 0 },
{ /* */ 9, 0 },
/* 5 bit codewords */
{ /* 10100 */ 10, 0 },
{ /* 10101 */ 11, 0 },
{ /* 10110 */ 12, 0 },
{ /* 10111 */ 13, 0 },
{ /* 11000 */ 14, 0 },
{ /* 11001 */ 15, 0 },
/* 7 bit codewords */
{ /* 11010 */ 16, 2 },
{ /* 11011 */ 20, 2 },
/* 7/8 bit codewords */
{ /* 11100 */ 24, 3 },
/* 8 bit codewords */
{ /* 11101 */ 32, 3 },
/* 8/9 bit codewords */
{ /* 11110 */ 40, 4 },
/* 9/10/11/12 bit codewords */
{ /* 11111 */ 56, 7 }
};
/* 2nd step table
*
* Gives size of codeword and actual data (x,y,v,w)
*/
Submit FS#11445. Speed up of faad (aac) decoder via several optimizations like refactoring some requantization routines, moving several arrays and code tables to IRAM, using an optimized swap32() function and inlining several huffman decoder functions. Decoding is sped up by ~10% (PP5002, PP5022, MCF5249) and ~22% (MCF5250). git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27225 a1c6a512-1295-4272-9138-f99709370657
2010-07-01 21:18:42 +00:00
static hcb_2_quad hcb4_2[] ICONST_ATTR_FAAD_LARGE_IRAM = {
Initial check-in of unmodified libfaad (part of the FAAD2 project). This is the last version of libfaad available under the GPL - the state of FAAD2 CVS at midnight on 2005-02-01 git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7699 a1c6a512-1295-4272-9138-f99709370657
2005-10-31 18:56:29 +00:00
/* 4 bit codewords */
{ 4, 1, 1, 1, 1 },
{ 4, 0, 1, 1, 1 },
{ 4, 1, 1, 0, 1 },
{ 4, 1, 1, 1, 0 },
{ 4, 1, 0, 1, 1 },
{ 4, 1, 0, 0, 0 },
{ 4, 1, 1, 0, 0 },
{ 4, 0, 0, 0, 0 },
{ 4, 0, 0, 1, 1 },
{ 4, 1, 0, 1, 0 },
/* 5 bit codewords */
{ 5, 1, 0, 0, 1 },
{ 5, 0, 1, 1, 0 },
{ 5, 0, 0, 0, 1 },
{ 5, 0, 1, 0, 1 },
{ 5, 0, 0, 1, 0 },
{ 5, 0, 1, 0, 0 },
/* 7 bit codewords */
/* first 5 bits: 11010 */
{ 7, 2, 1, 1, 1 },
{ 7, 1, 1, 2, 1 },
{ 7, 1, 2, 1, 1 },
{ 7, 1, 1, 1, 2 },
/* first 5 bits: 11011 */
{ 7, 2, 1, 1, 0 },
{ 7, 2, 1, 0, 1 },
{ 7, 1, 2, 1, 0 },
{ 7, 2, 0, 1, 1 },
/* 7/8 bit codewords */
/* first 5 bits: 11100 */
{ 7, 0, 1, 2, 1 }, { 7, 0, 1, 2, 1 },
{ 8, 0, 1, 1, 2 },
{ 8, 1, 1, 2, 0 },
{ 8, 0, 2, 1, 1 },
{ 8, 1, 0, 1, 2 },
{ 8, 1, 2, 0, 1 },
{ 8, 1, 1, 0, 2 },
/* 8 bit codewords */
{ 8, 1, 0, 2, 1 },
{ 8, 2, 1, 0, 0 },
{ 8, 2, 0, 1, 0 },
{ 8, 1, 2, 0, 0 },
{ 8, 2, 0, 0, 1 },
{ 8, 0, 1, 0, 2 },
{ 8, 0, 2, 1, 0 },
{ 8, 0, 0, 1, 2 },
/* 8/9 bit codewords */
{ 8, 0, 1, 2, 0 }, { 8, 0, 1, 2, 0 },
{ 8, 0, 2, 0, 1 }, { 8, 0, 2, 0, 1 },
{ 8, 1, 0, 0, 2 }, { 8, 1, 0, 0, 2 },
{ 8, 0, 0, 2, 1 }, { 8, 0, 0, 2, 1 },
{ 8, 1, 0, 2, 0 }, { 8, 1, 0, 2, 0 },
{ 8, 2, 0, 0, 0 }, { 8, 2, 0, 0, 0 },
{ 8, 0, 0, 0, 2 }, { 8, 0, 0, 0, 2 },
{ 9, 0, 2, 0, 0 },
{ 9, 0, 0, 2, 0 },
/* 9/10/11 bit codewords */
/* 9 bit codewords repeated 2^3 = 8 times */
{ 9, 1, 2, 2, 1 }, { 9, 1, 2, 2, 1 }, { 9, 1, 2, 2, 1 }, { 9, 1, 2, 2, 1 },
{ 9, 1, 2, 2, 1 }, { 9, 1, 2, 2, 1 }, { 9, 1, 2, 2, 1 }, { 9, 1, 2, 2, 1 },
{ 9, 2, 2, 1, 1 }, { 9, 2, 2, 1, 1 }, { 9, 2, 2, 1, 1 }, { 9, 2, 2, 1, 1 },
{ 9, 2, 2, 1, 1 }, { 9, 2, 2, 1, 1 }, { 9, 2, 2, 1, 1 }, { 9, 2, 2, 1, 1 },
{ 9, 2, 1, 2, 1 }, { 9, 2, 1, 2, 1 }, { 9, 2, 1, 2, 1 }, { 9, 2, 1, 2, 1 },
{ 9, 2, 1, 2, 1 }, { 9, 2, 1, 2, 1 }, { 9, 2, 1, 2, 1 }, { 9, 2, 1, 2, 1 },
{ 9, 1, 1, 2, 2 }, { 9, 1, 1, 2, 2 }, { 9, 1, 1, 2, 2 }, { 9, 1, 1, 2, 2 },
{ 9, 1, 1, 2, 2 }, { 9, 1, 1, 2, 2 }, { 9, 1, 1, 2, 2 }, { 9, 1, 1, 2, 2 },
{ 9, 1, 2, 1, 2 }, { 9, 1, 2, 1, 2 }, { 9, 1, 2, 1, 2 }, { 9, 1, 2, 1, 2 },
{ 9, 1, 2, 1, 2 }, { 9, 1, 2, 1, 2 }, { 9, 1, 2, 1, 2 }, { 9, 1, 2, 1, 2 },
{ 9, 2, 1, 1, 2 }, { 9, 2, 1, 1, 2 }, { 9, 2, 1, 1, 2 }, { 9, 2, 1, 1, 2 },
{ 9, 2, 1, 1, 2 }, { 9, 2, 1, 1, 2 }, { 9, 2, 1, 1, 2 }, { 9, 2, 1, 1, 2 },
/* 10 bit codewords repeated 2^2 = 4 times */
{ 10, 1, 2, 2, 0 }, { 10, 1, 2, 2, 0 }, { 10, 1, 2, 2, 0 }, { 10, 1, 2, 2, 0 },
{ 10, 2, 2, 1, 0 }, { 10, 2, 2, 1, 0 }, { 10, 2, 2, 1, 0 }, { 10, 2, 2, 1, 0 },
{ 10, 2, 1, 2, 0 }, { 10, 2, 1, 2, 0 }, { 10, 2, 1, 2, 0 }, { 10, 2, 1, 2, 0 },
{ 10, 0, 2, 2, 1 }, { 10, 0, 2, 2, 1 }, { 10, 0, 2, 2, 1 }, { 10, 0, 2, 2, 1 },
{ 10, 0, 1, 2, 2 }, { 10, 0, 1, 2, 2 }, { 10, 0, 1, 2, 2 }, { 10, 0, 1, 2, 2 },
{ 10, 2, 2, 0, 1 }, { 10, 2, 2, 0, 1 }, { 10, 2, 2, 0, 1 }, { 10, 2, 2, 0, 1 },
{ 10, 0, 2, 1, 2 }, { 10, 0, 2, 1, 2 }, { 10, 0, 2, 1, 2 }, { 10, 0, 2, 1, 2 },
{ 10, 2, 0, 2, 1 }, { 10, 2, 0, 2, 1 }, { 10, 2, 0, 2, 1 }, { 10, 2, 0, 2, 1 },
{ 10, 1, 0, 2, 2 }, { 10, 1, 0, 2, 2 }, { 10, 1, 0, 2, 2 }, { 10, 1, 0, 2, 2 },
{ 10, 2, 2, 2, 1 }, { 10, 2, 2, 2, 1 }, { 10, 2, 2, 2, 1 }, { 10, 2, 2, 2, 1 },
{ 10, 1, 2, 0, 2 }, { 10, 1, 2, 0, 2 }, { 10, 1, 2, 0, 2 }, { 10, 1, 2, 0, 2 },
{ 10, 2, 0, 1, 2 }, { 10, 2, 0, 1, 2 }, { 10, 2, 0, 1, 2 }, { 10, 2, 0, 1, 2 },
{ 10, 2, 1, 0, 2 }, { 10, 2, 1, 0, 2 }, { 10, 2, 1, 0, 2 }, { 10, 2, 1, 0, 2 },
{ 10, 1, 2, 2, 2 }, { 10, 1, 2, 2, 2 }, { 10, 1, 2, 2, 2 }, { 10, 1, 2, 2, 2 },
/* 11 bit codewords repeated 2^1 = 2 times */
{ 11, 2, 1, 2, 2 }, { 11, 2, 1, 2, 2 },
{ 11, 2, 2, 1, 2 }, { 11, 2, 2, 1, 2 },
{ 11, 0, 2, 2, 0 }, { 11, 0, 2, 2, 0 },
{ 11, 2, 2, 0, 0 }, { 11, 2, 2, 0, 0 },
{ 11, 0, 0, 2, 2 }, { 11, 0, 0, 2, 2 },
{ 11, 2, 0, 2, 0 }, { 11, 2, 0, 2, 0 },
{ 11, 0, 2, 0, 2 }, { 11, 0, 2, 0, 2 },
{ 11, 2, 0, 0, 2 }, { 11, 2, 0, 0, 2 },
{ 11, 2, 2, 2, 2 }, { 11, 2, 2, 2, 2 },
{ 11, 0, 2, 2, 2 }, { 11, 0, 2, 2, 2 },
{ 11, 2, 2, 2, 0 }, { 11, 2, 2, 2, 0 },
/* 12 bit codewords */
{ 12, 2, 2, 0, 2 },
{ 12, 2, 0, 2, 2 },
};
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