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1 /***********************************************************************
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2 Copyright (c) 2006-2011, Skype Limited. All rights reserved.
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3 Redistribution and use in source and binary forms, with or without
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4 modification, are permitted provided that the following conditions
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5 are met:
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6 - Redistributions of source code must retain the above copyright notice,
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7 this list of conditions and the following disclaimer.
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8 - Redistributions in binary form must reproduce the above copyright
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9 notice, this list of conditions and the following disclaimer in the
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10 documentation and/or other materials provided with the distribution.
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11 - Neither the name of Internet Society, IETF or IETF Trust, nor the
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12 names of specific contributors, may be used to endorse or promote
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13 products derived from this software without specific prior written
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14 permission.
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15 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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16 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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17 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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18 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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19 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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20 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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21 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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22 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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23 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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24 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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25 POSSIBILITY OF SUCH DAMAGE.
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26 ***********************************************************************/
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27
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28 #ifdef HAVE_CONFIG_H
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29 #include "config.h"
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30 #endif
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31
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32 #include "tables.h"
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33
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34 /* Cosine approximation table for LSF conversion */
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35 /* Q12 values (even) */
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36 const opus_int16 silk_LSFCosTab_FIX_Q12[ LSF_COS_TAB_SZ_FIX + 1 ] = {
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37 8192, 8190, 8182, 8170,
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38 8152, 8130, 8104, 8072,
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39 8034, 7994, 7946, 7896,
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40 7840, 7778, 7714, 7644,
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41 7568, 7490, 7406, 7318,
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42 7226, 7128, 7026, 6922,
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43 6812, 6698, 6580, 6458,
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44 6332, 6204, 6070, 5934,
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45 5792, 5648, 5502, 5352,
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46 5198, 5040, 4880, 4718,
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47 4552, 4382, 4212, 4038,
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48 3862, 3684, 3502, 3320,
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49 3136, 2948, 2760, 2570,
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50 2378, 2186, 1990, 1794,
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51 1598, 1400, 1202, 1002,
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52 802, 602, 402, 202,
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53 0, -202, -402, -602,
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54 -802, -1002, -1202, -1400,
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55 -1598, -1794, -1990, -2186,
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56 -2378, -2570, -2760, -2948,
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57 -3136, -3320, -3502, -3684,
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58 -3862, -4038, -4212, -4382,
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59 -4552, -4718, -4880, -5040,
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60 -5198, -5352, -5502, -5648,
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61 -5792, -5934, -6070, -6204,
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62 -6332, -6458, -6580, -6698,
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63 -6812, -6922, -7026, -7128,
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64 -7226, -7318, -7406, -7490,
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65 -7568, -7644, -7714, -7778,
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66 -7840, -7896, -7946, -7994,
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67 -8034, -8072, -8104, -8130,
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68 -8152, -8170, -8182, -8190,
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69 -8192
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70 };
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