FFmpeg
mpegaudiodsp_data.c
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #include "mpegaudiodsp.h"
20 
21 /* half mpeg encoding window (full precision) */
22 const int32_t ff_mpa_enwindow[257] = {
23  0, -1, -1, -1, -1, -1, -1, -2,
24  -2, -2, -2, -3, -3, -4, -4, -5,
25  -5, -6, -7, -7, -8, -9, -10, -11,
26  -13, -14, -16, -17, -19, -21, -24, -26,
27  -29, -31, -35, -38, -41, -45, -49, -53,
28  -58, -63, -68, -73, -79, -85, -91, -97,
29  -104, -111, -117, -125, -132, -139, -147, -154,
30  -161, -169, -176, -183, -190, -196, -202, -208,
31  213, 218, 222, 225, 227, 228, 228, 227,
32  224, 221, 215, 208, 200, 189, 177, 163,
33  146, 127, 106, 83, 57, 29, -2, -36,
34  -72, -111, -153, -197, -244, -294, -347, -401,
35  -459, -519, -581, -645, -711, -779, -848, -919,
36  -991, -1064, -1137, -1210, -1283, -1356, -1428, -1498,
37  -1567, -1634, -1698, -1759, -1817, -1870, -1919, -1962,
38  -2001, -2032, -2057, -2075, -2085, -2087, -2080, -2063,
39  2037, 2000, 1952, 1893, 1822, 1739, 1644, 1535,
40  1414, 1280, 1131, 970, 794, 605, 402, 185,
41  -45, -288, -545, -814, -1095, -1388, -1692, -2006,
42  -2330, -2663, -3004, -3351, -3705, -4063, -4425, -4788,
43  -5153, -5517, -5879, -6237, -6589, -6935, -7271, -7597,
44  -7910, -8209, -8491, -8755, -8998, -9219, -9416, -9585,
45  -9727, -9838, -9916, -9959, -9966, -9935, -9863, -9750,
46  -9592, -9389, -9139, -8840, -8492, -8092, -7640, -7134,
47  6574, 5959, 5288, 4561, 3776, 2935, 2037, 1082,
48  70, -998, -2122, -3300, -4533, -5818, -7154, -8540,
49  -9975,-11455,-12980,-14548,-16155,-17799,-19478,-21189,
50 -22929,-24694,-26482,-28289,-30112,-31947,-33791,-35640,
51 -37489,-39336,-41176,-43006,-44821,-46617,-48390,-50137,
52 -51853,-53534,-55178,-56778,-58333,-59838,-61289,-62684,
53 -64019,-65290,-66494,-67629,-68692,-69679,-70590,-71420,
54 -72169,-72835,-73415,-73908,-74313,-74630,-74856,-74992,
55  75038,
56 };
const int32_t ff_mpa_enwindow[257]
int32_t