Diffstat (limited to 'core/multimedia/opieplayer/libmad/huffman.c') (more/less context) (ignore whitespace changes)
-rw-r--r-- | core/multimedia/opieplayer/libmad/huffman.c | 31 |
1 files changed, 21 insertions, 10 deletions
diff --git a/core/multimedia/opieplayer/libmad/huffman.c b/core/multimedia/opieplayer/libmad/huffman.c index 5ea6547..684409e 100644 --- a/core/multimedia/opieplayer/libmad/huffman.c +++ b/core/multimedia/opieplayer/libmad/huffman.c | |||
@@ -1,67 +1,73 @@ | |||
1 | /* | 1 | /* |
2 | * libmad - MPEG audio decoder library | 2 | * libmad - MPEG audio decoder library |
3 | * Copyright (C) 2000-2001 Robert Leslie | 3 | * Copyright (C) 2000-2004 Underbit Technologies, Inc. |
4 | * | 4 | * |
5 | * This program is free software; you can redistribute it and/or modify | 5 | * This program is free software; you can redistribute it and/or modify |
6 | * it under the terms of the GNU General Public License as published by | 6 | * it under the terms of the GNU General Public License as published by |
7 | * the Free Software Foundation; either version 2 of the License, or | 7 | * the Free Software Foundation; either version 2 of the License, or |
8 | * (at your option) any later version. | 8 | * (at your option) any later version. |
9 | * | 9 | * |
10 | * This program is distributed in the hope that it will be useful, | 10 | * This program is distributed in the hope that it will be useful, |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | * GNU General Public License for more details. | 13 | * GNU General Public License for more details. |
14 | * | 14 | * |
15 | * You should have received a copy of the GNU General Public License | 15 | * You should have received a copy of the GNU General Public License |
16 | * along with this program; if not, write to the Free Software | 16 | * along with this program; if not, write to the Free Software |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
18 | * | 18 | * |
19 | * $Id$ | 19 | * $Id$ |
20 | */ | 20 | */ |
21 | 21 | ||
22 | # ifdef HAVE_CONFIG_H | 22 | # ifdef HAVE_CONFIG_H |
23 | # include "libmad_config.h" | 23 | # include "libmad_config.h" |
24 | # endif | 24 | # endif |
25 | 25 | ||
26 | # include "libmad_global.h" | 26 | # include "libmad_global.h" |
27 | 27 | ||
28 | # include "huffman.h" | 28 | # include "huffman.h" |
29 | 29 | ||
30 | /* | 30 | /* |
31 | * These are the Huffman code words for Layer III. | 31 | * These are the Huffman code words for Layer III. |
32 | * The data for these tables are derived from Table B.7 of ISO/IEC 11172-3. | 32 | * The data for these tables are derived from Table B.7 of ISO/IEC 11172-3. |
33 | * | 33 | * |
34 | * These tables support decoding up to 4 Huffman code bits at a time. | 34 | * These tables support decoding up to 4 Huffman code bits at a time. |
35 | */ | 35 | */ |
36 | 36 | ||
37 | # if defined(__GNUC__) | 37 | # if defined(__GNUC__) || \ |
38 | # define PTR(offs, bits){ ptr: { 0, bits, offs } } | 38 | (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901) |
39 | # define V(v, w, x, y, hlen){ value: { 1, hlen, v, w, x, y } } | 39 | # define PTR(offs, bits){ .ptr = { 0, bits, offs } } |
40 | # define V(v, w, x, y, hlen){ .value = { 1, hlen, v, w, x, y } } | ||
40 | # else | 41 | # else |
41 | # define PTR(offs, bits){ { 0, bits, offs } } | 42 | # define PTR(offs, bits){ { 0, bits, offs } } |
42 | # define V(v, w, x, y, hlen){ { 1, hlen, (v << 0) | (w << 1) | \ | 43 | # if defined(WORDS_BIGENDIAN) |
43 | (x << 2) | (y << 3) } } | 44 | # define V(v, w, x, y, hlen){ { 1, hlen, (v << 11) | (w << 10) | \ |
45 | (x << 9) | (y << 8) } } | ||
46 | # else | ||
47 | # define V(v, w, x, y, hlen){ { 1, hlen, (v << 0) | (w << 1) | \ | ||
48 | (x << 2) | (y << 3) } } | ||
49 | # endif | ||
44 | # endif | 50 | # endif |
45 | 51 | ||
46 | static | 52 | static |
47 | union huffquad const hufftabA[] = { | 53 | union huffquad const hufftabA[] = { |
48 | /* 0000 */ PTR(16, 2), | 54 | /* 0000 */ PTR(16, 2), |
49 | /* 0001 */ PTR(20, 2), | 55 | /* 0001 */ PTR(20, 2), |
50 | /* 0010 */ PTR(24, 1), | 56 | /* 0010 */ PTR(24, 1), |
51 | /* 0011 */ PTR(26, 1), | 57 | /* 0011 */ PTR(26, 1), |
52 | /* 0100 */ V(0, 0, 1, 0, 4), | 58 | /* 0100 */ V(0, 0, 1, 0, 4), |
53 | /* 0101 */ V(0, 0, 0, 1, 4), | 59 | /* 0101 */ V(0, 0, 0, 1, 4), |
54 | /* 0110 */ V(0, 1, 0, 0, 4), | 60 | /* 0110 */ V(0, 1, 0, 0, 4), |
55 | /* 0111 */ V(1, 0, 0, 0, 4), | 61 | /* 0111 */ V(1, 0, 0, 0, 4), |
56 | /* 1000 */ V(0, 0, 0, 0, 1), | 62 | /* 1000 */ V(0, 0, 0, 0, 1), |
57 | /* 1001 */ V(0, 0, 0, 0, 1), | 63 | /* 1001 */ V(0, 0, 0, 0, 1), |
58 | /* 1010 */ V(0, 0, 0, 0, 1), | 64 | /* 1010 */ V(0, 0, 0, 0, 1), |
59 | /* 1011 */ V(0, 0, 0, 0, 1), | 65 | /* 1011 */ V(0, 0, 0, 0, 1), |
60 | /* 1100 */ V(0, 0, 0, 0, 1), | 66 | /* 1100 */ V(0, 0, 0, 0, 1), |
61 | /* 1101 */ V(0, 0, 0, 0, 1), | 67 | /* 1101 */ V(0, 0, 0, 0, 1), |
62 | /* 1110 */ V(0, 0, 0, 0, 1), | 68 | /* 1110 */ V(0, 0, 0, 0, 1), |
63 | /* 1111 */ V(0, 0, 0, 0, 1), | 69 | /* 1111 */ V(0, 0, 0, 0, 1), |
64 | 70 | ||
65 | /* 0000 ... */ | 71 | /* 0000 ... */ |
66 | /* 00 */ V(1, 0, 1, 1, 2),/* 16 */ | 72 | /* 00 */ V(1, 0, 1, 1, 2),/* 16 */ |
67 | /* 01 */ V(1, 1, 1, 1, 2), | 73 | /* 01 */ V(1, 1, 1, 1, 2), |
@@ -85,54 +91,59 @@ union huffquad const hufftabA[] = { | |||
85 | 91 | ||
86 | static | 92 | static |
87 | union huffquad const hufftabB[] = { | 93 | union huffquad const hufftabB[] = { |
88 | /* 0000 */ V(1, 1, 1, 1, 4), | 94 | /* 0000 */ V(1, 1, 1, 1, 4), |
89 | /* 0001 */ V(1, 1, 1, 0, 4), | 95 | /* 0001 */ V(1, 1, 1, 0, 4), |
90 | /* 0010 */ V(1, 1, 0, 1, 4), | 96 | /* 0010 */ V(1, 1, 0, 1, 4), |
91 | /* 0011 */ V(1, 1, 0, 0, 4), | 97 | /* 0011 */ V(1, 1, 0, 0, 4), |
92 | /* 0100 */ V(1, 0, 1, 1, 4), | 98 | /* 0100 */ V(1, 0, 1, 1, 4), |
93 | /* 0101 */ V(1, 0, 1, 0, 4), | 99 | /* 0101 */ V(1, 0, 1, 0, 4), |
94 | /* 0110 */ V(1, 0, 0, 1, 4), | 100 | /* 0110 */ V(1, 0, 0, 1, 4), |
95 | /* 0111 */ V(1, 0, 0, 0, 4), | 101 | /* 0111 */ V(1, 0, 0, 0, 4), |
96 | /* 1000 */ V(0, 1, 1, 1, 4), | 102 | /* 1000 */ V(0, 1, 1, 1, 4), |
97 | /* 1001 */ V(0, 1, 1, 0, 4), | 103 | /* 1001 */ V(0, 1, 1, 0, 4), |
98 | /* 1010 */ V(0, 1, 0, 1, 4), | 104 | /* 1010 */ V(0, 1, 0, 1, 4), |
99 | /* 1011 */ V(0, 1, 0, 0, 4), | 105 | /* 1011 */ V(0, 1, 0, 0, 4), |
100 | /* 1100 */ V(0, 0, 1, 1, 4), | 106 | /* 1100 */ V(0, 0, 1, 1, 4), |
101 | /* 1101 */ V(0, 0, 1, 0, 4), | 107 | /* 1101 */ V(0, 0, 1, 0, 4), |
102 | /* 1110 */ V(0, 0, 0, 1, 4), | 108 | /* 1110 */ V(0, 0, 0, 1, 4), |
103 | /* 1111 */ V(0, 0, 0, 0, 4) | 109 | /* 1111 */ V(0, 0, 0, 0, 4) |
104 | }; | 110 | }; |
105 | 111 | ||
106 | # undef V | 112 | # undef V |
107 | # undef PTR | 113 | # undef PTR |
108 | 114 | ||
109 | # if defined(__GNUC__) | 115 | # if defined(__GNUC__) || \ |
110 | # define PTR(offs, bits){ ptr: { 0, bits, offs } } | 116 | (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901) |
111 | # define V(x, y, hlen) { value: { 1, hlen, x, y } } | 117 | # define PTR(offs, bits){ .ptr = { 0, bits, offs } } |
118 | # define V(x, y, hlen) { .value = { 1, hlen, x, y } } | ||
112 | # else | 119 | # else |
113 | # define PTR(offs, bits){ { 0, bits, offs } } | 120 | # define PTR(offs, bits){ { 0, bits, offs } } |
114 | # define V(x, y, hlen) { { 1, hlen, (x << 0) | (y << 4) } } | 121 | # if defined(WORDS_BIGENDIAN) |
122 | # define V(x, y, hlen){ { 1, hlen, (x << 8) | (y << 4) } } | ||
123 | # else | ||
124 | # define V(x, y, hlen){ { 1, hlen, (x << 0) | (y << 4) } } | ||
125 | # endif | ||
115 | # endif | 126 | # endif |
116 | 127 | ||
117 | static | 128 | static |
118 | union huffpair const hufftab0[] = { | 129 | union huffpair const hufftab0[] = { |
119 | /* */ V(0, 0, 0) | 130 | /* */ V(0, 0, 0) |
120 | }; | 131 | }; |
121 | 132 | ||
122 | static | 133 | static |
123 | union huffpair const hufftab1[] = { | 134 | union huffpair const hufftab1[] = { |
124 | /* 000 */ V(1, 1, 3), | 135 | /* 000 */ V(1, 1, 3), |
125 | /* 001 */ V(0, 1, 3), | 136 | /* 001 */ V(0, 1, 3), |
126 | /* 010 */ V(1, 0, 2), | 137 | /* 010 */ V(1, 0, 2), |
127 | /* 011 */ V(1, 0, 2), | 138 | /* 011 */ V(1, 0, 2), |
128 | /* 100 */ V(0, 0, 1), | 139 | /* 100 */ V(0, 0, 1), |
129 | /* 101 */ V(0, 0, 1), | 140 | /* 101 */ V(0, 0, 1), |
130 | /* 110 */ V(0, 0, 1), | 141 | /* 110 */ V(0, 0, 1), |
131 | /* 111 */ V(0, 0, 1) | 142 | /* 111 */ V(0, 0, 1) |
132 | }; | 143 | }; |
133 | 144 | ||
134 | static | 145 | static |
135 | union huffpair const hufftab2[] = { | 146 | union huffpair const hufftab2[] = { |
136 | /* 000 */ PTR(8, 3), | 147 | /* 000 */ PTR(8, 3), |
137 | /* 001 */ V(1, 1, 3), | 148 | /* 001 */ V(1, 1, 3), |
138 | /* 010 */ V(0, 1, 3), | 149 | /* 010 */ V(0, 1, 3), |