0,0 → 1,47 |
/* |
* 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, |
}; |