FreeCalypso > hg > gsm-codec-lib
annotate libtwamr/syn_filt.h @ 474:285381a001fc
new program gsmfr-dlcap-sync
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Wed, 15 May 2024 06:20:59 +0000 |
parents | 2af94ba0c075 |
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libtwamr: integrate syn_filt.c
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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 : syn_filt.h |
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11 * Purpose : Perform synthesis filtering through 1/A(z). |
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12 * |
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13 * |
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14 ******************************************************************************** |
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15 */ |
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16 #ifndef syn_filt_h |
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17 #define syn_filt_h "$Id $" |
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18 |
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19 /* |
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20 ******************************************************************************** |
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21 * INCLUDE FILES |
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22 ******************************************************************************** |
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23 */ |
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24 #include "typedef.h" |
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25 |
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26 /* |
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27 ******************************************************************************** |
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28 * DEFINITION OF DATA TYPES |
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29 ******************************************************************************** |
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30 */ |
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31 |
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32 /* |
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33 ******************************************************************************** |
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34 * DECLARATION OF PROTOTYPES |
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35 ******************************************************************************** |
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36 */ |
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37 |
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38 void Syn_filt ( |
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39 Word16 a[], /* (i) : a[m+1] prediction coefficients (m=10) */ |
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40 Word16 x[], /* (i) : input signal */ |
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41 Word16 y[], /* (o) : output signal */ |
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42 Word16 lg, /* (i) : size of filtering */ |
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43 Word16 mem[], /* (i/o): memory associated with this filtering. */ |
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44 Word16 update /* (i) : 0=no update, 1=update of memory. */ |
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45 ); |
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46 |
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47 #endif |