/* * 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, };