author | Mikael Laine <mikael.laine@ixonos.com> |
Fri, 29 Jan 2010 14:08:33 +0200 | |
changeset 0 | 951a5db380a0 |
permissions | -rw-r--r-- |
0
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
1 |
/* |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
2 |
* Copyright (c) 2010 Ixonos Plc. |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
3 |
* All rights reserved. |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
4 |
* This component and the accompanying materials are made available |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
5 |
* under the terms of the "Eclipse Public License v1.0" |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
6 |
* which accompanies this distribution, and is available |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
7 |
* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
8 |
* |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
9 |
* Initial Contributors: |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
10 |
* Nokia Corporation - Initial contribution |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
11 |
* |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
12 |
* Contributors: |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
13 |
* Ixonos Plc |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
14 |
* |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
15 |
* Description: |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
16 |
* |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
17 |
*/ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
18 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
19 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
20 |
/************************************************************************** |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
21 |
l3huffman.cpp - Huffman decoding subroutines for layer III. |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
22 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
23 |
Author(s): Juha Ojanpera |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
24 |
Copyright (c) 1999-2004 by Nokia Research Center, Speech and Audio Systems. |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
25 |
*************************************************************************/ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
26 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
27 |
/************************************************************************** |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
28 |
External Objects Needed |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
29 |
*************************************************************************/ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
30 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
31 |
/*-- Project Headers --*/ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
32 |
#include "mpaud.h" |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
33 |
#include "mp3tables.h" |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
34 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
35 |
/************************************************************************** |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
36 |
Internal Objects |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
37 |
*************************************************************************/ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
38 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
39 |
/* |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
40 |
Purpose: Table to hold the Huffman symbol codebooks. |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
41 |
Explanation: - |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
42 |
const int16 *huff_symbols_tbl[] = { |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
43 |
NULL, huff_symbols1, huff_symbols2, huff_symbols3, NULL, huff_symbols5, |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
44 |
huff_symbols6, huff_symbols7, huff_symbols8, huff_symbols9, huff_symbols10, |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
45 |
huff_symbols11, huff_symbols12, huff_symbols13, NULL, huff_symbols15, |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
46 |
huff_symbols16, huff_symbols24, huff_symbols32}; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
47 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
48 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
49 |
Purpose: Table to hold the Huffman codeword codebooks. |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
50 |
Explanation: - |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
51 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
52 |
const int16 *huff_cwords_tbl[] = { |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
53 |
NULL, huff_cwords1, huff_cwords2, huff_cwords3, NULL, huff_cwords5, |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
54 |
huff_cwords6, huff_cwords7, huff_cwords8, huff_cwords9, huff_cwords10, |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
55 |
huff_cwords11, huff_cwords12, huff_cwords13, NULL, huff_cwords15, huff_cwords16, |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
56 |
huff_cwords24, huff_cwords32}; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
57 |
*/ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
58 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
59 |
/************************************************************************** |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
60 |
Title : InitL3Huffman |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
61 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
62 |
Purpose : Allocates resources for layer III Huffman decoding. |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
63 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
64 |
Usage : InitL3Huffman(huf) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
65 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
66 |
Output : huf - Huffman tables |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
67 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
68 |
Author(s) : Juha Ojanpera |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
69 |
*************************************************************************/ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
70 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
71 |
void |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
72 |
InitL3Huffman(CHuffman *huf) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
73 |
{ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
74 |
int16 i, j; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
75 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
76 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
77 |
/* |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
78 |
Purpose: Table to hold the Huffman symbol codebooks. |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
79 |
Explanation: - */ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
80 |
const int16 *huff_symbols_tbl[] = { |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
81 |
NULL, huff_symbols1, huff_symbols2, huff_symbols3, NULL, huff_symbols5, |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
82 |
huff_symbols6, huff_symbols7, huff_symbols8, huff_symbols9, huff_symbols10, |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
83 |
huff_symbols11, huff_symbols12, huff_symbols13, NULL, huff_symbols15, |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
84 |
huff_symbols16, huff_symbols24, huff_symbols32}; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
85 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
86 |
/* |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
87 |
Purpose: Table to hold the Huffman codeword codebooks. |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
88 |
Explanation: - */ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
89 |
const int16 *huff_cwords_tbl[] = { |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
90 |
NULL, huff_cwords1, huff_cwords2, huff_cwords3, NULL, huff_cwords5, |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
91 |
huff_cwords6, huff_cwords7, huff_cwords8, huff_cwords9, huff_cwords10, |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
92 |
huff_cwords11, huff_cwords12, huff_cwords13, NULL, huff_cwords15, huff_cwords16, |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
93 |
huff_cwords24, huff_cwords32}; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
94 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
95 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
96 |
for(i = 0; i < 33; i++) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
97 |
{ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
98 |
huf[i].tree_len = huf_tree_len[i]; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
99 |
huf[i].linbits = linbits[i]; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
100 |
} |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
101 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
102 |
for(i = 0; i < 16; i++) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
103 |
{ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
104 |
huf[i].codeword = huff_cwords_tbl[i]; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
105 |
huf[i].packed_symbols = huff_symbols_tbl[i]; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
106 |
} |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
107 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
108 |
j = i; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
109 |
while(j < 24) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
110 |
{ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
111 |
huf[j].codeword = huff_cwords_tbl[i]; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
112 |
huf[j].packed_symbols = huff_symbols_tbl[i]; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
113 |
j++; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
114 |
} |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
115 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
116 |
i++; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
117 |
while(j < 32) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
118 |
{ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
119 |
huf[j].codeword = huff_cwords_tbl[i]; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
120 |
huf[j].packed_symbols = huff_symbols_tbl[i]; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
121 |
j++; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
122 |
} |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
123 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
124 |
i++; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
125 |
huf[j].codeword = huff_cwords_tbl[i]; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
126 |
huf[j].packed_symbols = huff_symbols_tbl[i]; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
127 |
} |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
128 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
129 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
130 |
/************************************************************************** |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
131 |
Title : L3decode_codeword |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
132 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
133 |
Purpose : Decodes one Huffman codeword from the bitstream and returns |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
134 |
the corresponding symbol. |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
135 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
136 |
Usage : L3decode_codeword(br, h) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
137 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
138 |
Input : br - bitstream parameters |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
139 |
h - Huffman table to be utilized |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
140 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
141 |
Explanation : This decoding routine works only if the codewords are |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
142 |
sorted according to their length, i.e, the codeword that has |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
143 |
the minimum length appears first in the Huffman table, the |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
144 |
length of the second codeword in the table is either greater |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
145 |
or equal than the first one and so on. |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
146 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
147 |
Author(s) : Juha Ojanpera |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
148 |
*************************************************************************/ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
149 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
150 |
INLINE int16 |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
151 |
L3decode_codeword(TBitStream *br, CHuffman *h) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
152 |
{ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
153 |
const int16 *h_len = h->packed_symbols; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
154 |
const int16 *h_codeword = h->codeword; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
155 |
uint16 clen, items; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
156 |
uint16 shift, N = 19; /* N = 19 maximum codeword length */ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
157 |
uint32 cand_codeword; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
158 |
uint32 codeword; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
159 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
160 |
/* Read the maximum codeword. */ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
161 |
cand_codeword = BsLookAhead(br, N); |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
162 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
163 |
/* |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
164 |
* Length of the codeword that has the |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
165 |
* highest probability. |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
166 |
*/ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
167 |
shift = N - (*h_len & 31); |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
168 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
169 |
/* Candidate codeword for the first codebook entry. */ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
170 |
codeword = cand_codeword >> shift; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
171 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
172 |
/* |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
173 |
* Sequentially goes through the whole Huffman table |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
174 |
* until a match has been found. |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
175 |
*/ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
176 |
items = 1; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
177 |
while(items < h->tree_len && codeword != (uint16)*h_codeword) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
178 |
{ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
179 |
h_len++; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
180 |
h_codeword++; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
181 |
items++; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
182 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
183 |
/* How many bits the codeword need to be updated. */ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
184 |
clen = *h_len & 31; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
185 |
if(clen) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
186 |
{ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
187 |
shift -= clen; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
188 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
189 |
/* New candidate codeword. */ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
190 |
codeword = cand_codeword >> shift; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
191 |
} |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
192 |
} |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
193 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
194 |
/* # of bits actually read. */ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
195 |
BsSkipNBits(br, N - shift); |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
196 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
197 |
/* Decoded Huffman symbol. */ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
198 |
return (*h_len >> 5); |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
199 |
} |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
200 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
201 |
/************************************************************************** |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
202 |
Layer III subroutines for decoding spectral samples. |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
203 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
204 |
Author(s): Juha Ojanpera |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
205 |
Copyright (c) 1999-2004 by Nokia Research Center, Speech and Audio Systems. |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
206 |
*************************************************************************/ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
207 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
208 |
int16 |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
209 |
III_huffman_decode(CMP_Stream *mp, int16 gr, int16 ch, int32 part2) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
210 |
{ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
211 |
int16 i, x, region1Start, region2Start, table_num, limit; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
212 |
int16 *quant, count1Len; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
213 |
TGranule_Info *gr_info; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
214 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
215 |
/* Quantized spectral samples. */ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
216 |
quant = mp->frame->ch_quant[ch]; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
217 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
218 |
/* Granule info for this frame. */ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
219 |
gr_info = mp->side_info->ch_info[ch]->gr_info[gr]; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
220 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
221 |
/* Find region boundaries. */ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
222 |
region1Start = mp->side_info->sfbData->sfbLong[gr_info->region0_count + 1]; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
223 |
region2Start = mp->side_info->sfbData->sfbLong[gr_info->region0_count + |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
224 |
gr_info->region1_count + 2]; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
225 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
226 |
/* |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
227 |
* How many samples actually need to be Huffman decoded. |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
228 |
*/ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
229 |
limit = mp->side_info->sfbData->bandLimit; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
230 |
if(gr_info->big_values > limit) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
231 |
gr_info->big_values = limit; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
232 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
233 |
/* Read bigvalues area. */ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
234 |
int16 section1 = MIN(gr_info->big_values, region1Start); |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
235 |
if(section1 > 0) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
236 |
{ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
237 |
pairtable(mp, section1, gr_info->table_select[0], quant); |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
238 |
quant += section1; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
239 |
} |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
240 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
241 |
int16 section2 = MIN(gr_info->big_values, region2Start) - region1Start; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
242 |
if(section2 > 0) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
243 |
{ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
244 |
pairtable(mp, section2, gr_info->table_select[1], quant); |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
245 |
quant += section2; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
246 |
} |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
247 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
248 |
int16 section3 = gr_info->big_values - region2Start; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
249 |
if(section3 > 0) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
250 |
{ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
251 |
pairtable(mp, section3, gr_info->table_select[2], quant); |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
252 |
quant += section3; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
253 |
} |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
254 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
255 |
count1Len = 0; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
256 |
i = gr_info->big_values; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
257 |
part2 += gr_info->part2_3_length; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
258 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
259 |
/* Check whether the samples between -1,...,1 need to be Huffman decoded. */ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
260 |
if(i < limit) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
261 |
{ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
262 |
/* Read count1 area. */ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
263 |
table_num = 32 + ((gr_info->flags & COUNT_1_TABLE_SELECT) ? 1 : 0); |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
264 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
265 |
x = quadtable(mp, i, part2, table_num, quant, limit); |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
266 |
count1Len = x - i; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
267 |
quant += count1Len; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
268 |
count1Len >>= 2; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
269 |
i = x; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
270 |
} |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
271 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
272 |
if(BsGetBitsRead(mp->br) > (uint32)part2) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
273 |
{ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
274 |
count1Len--; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
275 |
quant -= 4; i -= 4; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
276 |
BsRewindNBits(mp->br, BsGetBitsRead(mp->br) - part2); |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
277 |
} |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
278 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
279 |
/* Dismiss stuffing Bits */ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
280 |
if(BsGetBitsRead(mp->br) < (uint32)part2) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
281 |
BsSkipNBits(mp->br, part2 - BsGetBitsRead(mp->br)); |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
282 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
283 |
gr_info->zero_part_start = (i < limit) ? i : limit; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
284 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
285 |
return (count1Len); |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
286 |
} |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
287 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
288 |
void |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
289 |
pairtable(CMP_Stream *mp, int16 section_length, int16 table_num, int16 *quant) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
290 |
{ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
291 |
register CHuffman *h = &mp->huffman[table_num]; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
292 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
293 |
if(h->tree_len == 0) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
294 |
Mem::Fill(quant, section_length << 1 /** sizeof(int16)*/, 0); |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
295 |
else |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
296 |
{ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
297 |
if(h->linbits) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
298 |
{ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
299 |
register int16 *q = quant; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
300 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
301 |
for(int16 i = 0; i < section_length; i += 2, q += 2) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
302 |
{ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
303 |
uint32 codeword = L3decode_codeword(mp->br, h); |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
304 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
305 |
/* Unpack coefficients. */ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
306 |
*q = codeword >> 4; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
307 |
q[1] = codeword & 15; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
308 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
309 |
/* Read extra bits (if needed) and sign bits (if needed). */ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
310 |
if(*q == 15) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
311 |
*q += BsGetBits(mp->br, h->linbits); |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
312 |
if(*q) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
313 |
*q = (BsGetBits(mp->br, 1)) ? -*q : *q; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
314 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
315 |
if(q[1] == 15) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
316 |
q[1] += BsGetBits(mp->br, h->linbits); |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
317 |
if(q[1]) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
318 |
q[1] = (BsGetBits(mp->br, 1)) ? -q[1] : q[1]; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
319 |
} |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
320 |
} |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
321 |
else /* no linbits */ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
322 |
{ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
323 |
register int16 *q = quant; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
324 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
325 |
for(int16 i = 0; i < section_length; i += 2, q += 2) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
326 |
{ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
327 |
uint32 codeword = L3decode_codeword(mp->br, h); |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
328 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
329 |
/* Unpack coefficients. */ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
330 |
*q = codeword >> 4; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
331 |
q[1] = codeword & 15; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
332 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
333 |
/* Read extra bits (not needed) and sign bits (if needed). */ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
334 |
if(*q) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
335 |
*q = (BsGetBits(mp->br, 1)) ? -*q : *q; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
336 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
337 |
if(q[1]) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
338 |
q[1] = (BsGetBits(mp->br, 1)) ? -q[1] : q[1]; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
339 |
} |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
340 |
} |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
341 |
} |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
342 |
} |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
343 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
344 |
int16 |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
345 |
quadtable(CMP_Stream *mp, int16 start, int16 part2, int16 table_num, int16 *quant, |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
346 |
int16 max_sfb_bins) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
347 |
{ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
348 |
int16 i; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
349 |
register int16 *q = quant; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
350 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
351 |
for(i = start; (BsGetBitsRead(mp->br) < (uint32)part2 && i < max_sfb_bins); |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
352 |
i += 4, q += 4) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
353 |
{ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
354 |
uint32 codeword; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
355 |
uint16 mask = 8, sbits = 0; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
356 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
357 |
if(table_num == 33) |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
358 |
codeword = 15 - BsGetBits(mp->br, 4); |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
359 |
else |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
360 |
codeword = L3decode_codeword(mp->br, &mp->huffman[table_num]); |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
361 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
362 |
/* Unpack coefficients. */ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
363 |
*q = (codeword >> 3) & 1; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
364 |
q[1] = (codeword >> 2) & 1; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
365 |
q[2] = (codeword >> 1) & 1; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
366 |
q[3] = codeword & 1; |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
367 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
368 |
/* Sign bits. */ |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
369 |
codeword = BsLookAhead(mp->br, 4); |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
370 |
if(*q) { sbits++; *q = (codeword & mask) ? -*q : *q; mask >>= 1; } |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
371 |
if(q[1]) { sbits++; q[1] = (codeword & mask) ? -q[1] : q[1]; mask >>= 1; } |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
372 |
if(q[2]) { sbits++; q[2] = (codeword & mask) ? -q[2] : q[2]; mask >>= 1; } |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
373 |
if(q[3]) { sbits++; q[3] = (codeword & mask) ? -q[3] : q[3]; mask >>= 1; } |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
374 |
if(sbits) BsSkipBits(mp->br, sbits); |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
375 |
} |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
376 |
|
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
377 |
return (i); |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
Mikael Laine <mikael.laine@ixonos.com>
parents:
diff
changeset
|
378 |
} |