scaling_tab.cpp revision 3306cfee3bf38ab207a0504e49c2d492bb73ffbf 
1/* ------------------------------------------------------------------
2 * Copyright (C) 1998-2009 PacketVideo
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
13 * express or implied.
14 * See the License for the specific language governing permissions
15 * and limitations under the License.
16 * -------------------------------------------------------------------
17 */
18
19/*----------------------------------------------------------------------------
20; INCLUDES
21----------------------------------------------------------------------------*/
22
23#include    "mp4dec_api.h"
24#include    "mp4def.h"
25#include    "scaling.h"
26/*----------------------------------------------------------------------------
27; MACROS
28; Define module specific macros here
29----------------------------------------------------------------------------*/
30
31
32/*----------------------------------------------------------------------------
33; DEFINES
34; Include all pre-processor statements here. Include conditional
35; compile variables also.
36----------------------------------------------------------------------------*/
37
38/*----------------------------------------------------------------------------
39; LOCAL FUNCTION DEFINITIONS
40; Function Prototype declaration
41----------------------------------------------------------------------------*/
42
43
44/*----------------------------------------------------------------------------
45; LOCAL STORE/BUFFER/POINTER DEFINITIONS
46; Variable declaration - defined here and used outside this module
47----------------------------------------------------------------------------*/
48
49/* this scaling can be used for dividing values up to 3292             07/10/01 */
50const int32 scale[63] = {0, 262145, 131073, 87382, 65537, 52430, 43692, 37450, 32769, 29128,
51                         26215, 23832, 21846, 20166, 18726, 17477, 16385, 15421, 14565, 13798,
52                         13108, 12484, 11917, 11399, 10924, 10487, 10083, 9710, 9363, 9040,
53                         8739, 8457, 8193, 7945, 7711, 7491, 7283, 7086, 6900, 6723, 6555, 6395,
54                         6243, 6097, 5959, 5826, 5700, 5579, 5462, 5351, 5244, 5141, 5042, 4947, 4856,
55                         4767, 4682, 4600, 4521, 4444, 4370, 4298, 4229
56                        };
57/*----------------------------------------------------------------------------
58; EXTERNAL FUNCTION REFERENCES
59; Declare functions defined elsewhere and referenced in this module
60----------------------------------------------------------------------------*/
61
62
63/*----------------------------------------------------------------------------
64; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
65; Declare variables used in this module but defined elsewhere
66----------------------------------------------------------------------------*/
67
68
69/*----------------------------------------------------------------------------
70; FUNCTION CODE
71----------------------------------------------------------------------------*/
72
73
74/*----------------------------------------------------------------------------
75; Define all local variables
76----------------------------------------------------------------------------*/
77
78
79/*----------------------------------------------------------------------------
80; Function body here
81----------------------------------------------------------------------------*/
82
83
84/*----------------------------------------------------------------------------
85; Return nothing or data or data pointer
86----------------------------------------------------------------------------*/
87
88
89