diff options
Diffstat (limited to 'faad2/src/libfaad/codebook/hcb_2.h')
| -rw-r--r-- | faad2/src/libfaad/codebook/hcb_2.h | 185 |
1 files changed, 185 insertions, 0 deletions
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 }
+};
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