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annotate libtwamr/residu.h @ 515:bb36ef735f25

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hrutil: starting with gsmhr-cod-parse
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 30 Aug 2024 08:05:07 +0000
parents a2351f2ad4f8
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1 /*
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2 ********************************************************************************
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3 *
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4 * GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001
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5 * R99 Version 3.3.0
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6 * REL-4 Version 4.1.0
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7 *
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8 ********************************************************************************
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9 *
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10 * File : residu.h
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11 * Purpose : Computes the LP residual.
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12 * Description : The LP residual is computed by filtering the input
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13 * : speech through the LP inverse filter A(z).
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14 *
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15 *
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16 ********************************************************************************
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17 */
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18 #ifndef residu_h
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19 #define residu_h "$Id $"
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20
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21 /*
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22 ********************************************************************************
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23 * INCLUDE FILES
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24 ********************************************************************************
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25 */
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26 #include "typedef.h"
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27
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28 /*
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29 ********************************************************************************
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30 * DEFINITION OF DATA TYPES
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31 ********************************************************************************
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32 */
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33
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34 /*
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35 ********************************************************************************
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36 * DECLARATION OF PROTOTYPES
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37 ********************************************************************************
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38 */
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39
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40 void Residu (
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41 Word16 a[], /* (i) : prediction coefficients */
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42 Word16 x[], /* (i) : speech signal */
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43 Word16 y[], /* (o) : residual signal */
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44 Word16 lg /* (i) : size of filtering */
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45 );
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46
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47 #endif