mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-26 19:01:44 +02:00
48 lines
1.9 KiB
C
48 lines
1.9 KiB
C
/*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* AAN (Arai Agui Aakajima) (I)DCT tables
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
|
|
const uint16_t ff_aanscales[64] = {
|
|
/* precomputed values scaled up by 14 bits */
|
|
16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520,
|
|
22725, 31521, 29692, 26722, 22725, 17855, 12299, 6270,
|
|
21407, 29692, 27969, 25172, 21407, 16819, 11585, 5906,
|
|
19266, 26722, 25172, 22654, 19266, 15137, 10426, 5315,
|
|
16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520,
|
|
12873, 17855, 16819, 15137, 12873, 10114, 6967, 3552,
|
|
8867 , 12299, 11585, 10426, 8867, 6967, 4799, 2446,
|
|
4520 , 6270, 5906, 5315, 4520, 3552, 2446, 1247
|
|
};
|
|
|
|
const uint16_t ff_inv_aanscales[64] = {
|
|
4096, 2953, 3135, 3483, 4096, 5213, 7568, 14846,
|
|
2953, 2129, 2260, 2511, 2953, 3759, 5457, 10703,
|
|
3135, 2260, 2399, 2666, 3135, 3990, 5793, 11363,
|
|
3483, 2511, 2666, 2962, 3483, 4433, 6436, 12625,
|
|
4096, 2953, 3135, 3483, 4096, 5213, 7568, 14846,
|
|
5213, 3759, 3990, 4433, 5213, 6635, 9633, 18895,
|
|
7568, 5457, 5793, 6436, 7568, 9633, 13985, 27432,
|
|
14846, 10703, 11363, 12625, 14846, 18895, 27432, 53809,
|
|
};
|