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1 /******************************************************************** |
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2 * * |
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3 * THIS FILE IS PART OF THE OggTheora SOFTWARE CODEC SOURCE CODE. * |
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4 * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * |
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5 * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * |
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6 * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * |
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7 * * |
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8 * THE Theora SOURCE CODE IS COPYRIGHT (C) 2002-2009 * |
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9 * by the Xiph.Org Foundation and contributors http://www.xiph.org/ * |
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10 * * |
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11 ******************************************************************** |
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12 |
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13 function: |
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14 last mod: $Id: dct.h 16503 2009-08-22 18:14:02Z giles $ |
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15 |
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16 ********************************************************************/ |
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17 |
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18 /*Definitions shared by the forward and inverse DCT transforms.*/ |
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19 #if !defined(_dct_H) |
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20 # define _dct_H (1) |
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21 |
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22 /*cos(n*pi/16) (resp. sin(m*pi/16)) scaled by 65536.*/ |
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23 #define OC_C1S7 ((ogg_int32_t)64277) |
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24 #define OC_C2S6 ((ogg_int32_t)60547) |
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25 #define OC_C3S5 ((ogg_int32_t)54491) |
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26 #define OC_C4S4 ((ogg_int32_t)46341) |
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27 #define OC_C5S3 ((ogg_int32_t)36410) |
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28 #define OC_C6S2 ((ogg_int32_t)25080) |
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29 #define OC_C7S1 ((ogg_int32_t)12785) |
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30 |
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31 #endif |