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comparison: media/libtheora/lib/dct.h
media/libtheora/lib/dct.h
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| 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: dct.h 16503 2009-08-22 18:14:02Z giles $ | |
| 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 |
