1 /******************************************************************** 2 * * 3 * THIS FILE IS PART OF THE OggTheora SOFTWARE CODEC SOURCE CODE. * 4 * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * 5 * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * 6 * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * 7 * * 8 * THE Theora SOURCE CODE IS COPYRIGHT (C) 2002-2009 * 9 * by the Xiph.Org Foundation and contributors http://www.xiph.org/ * 10 * * 11 ******************************************************************** 12 13 function: 14 last mod: $Id$ 15 16 ********************************************************************/ 17 18 /*Definitions shared by the forward and inverse DCT transforms.*/ 19 #if !defined(_dct_H) 20 # define _dct_H (1) 21 22 /*cos(n*pi/16) (resp. sin(m*pi/16)) scaled by 65536.*/ 23 #define OC_C1S7 ((ogg_int32_t)64277) 24 #define OC_C2S6 ((ogg_int32_t)60547) 25 #define OC_C3S5 ((ogg_int32_t)54491) 26 #define OC_C4S4 ((ogg_int32_t)46341) 27 #define OC_C5S3 ((ogg_int32_t)36410) 28 #define OC_C6S2 ((ogg_int32_t)25080) 29 #define OC_C7S1 ((ogg_int32_t)12785) 30 31 #endif 32