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Diego Biurrun
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/*
* 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
*/
/**
* AAN (Arai, Agui and Nakajima) (I)DCT tables
Diego Biurrun
committed
*/
#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,
};