FreeCalypso > hg > gsm-codec-lib
annotate libtwamr/set_sign.h @ 363:0349de7c45b7
libtwamr: integrate enc_lag[36].c
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Mon, 06 May 2024 02:46:19 +0000 |
parents | 15c354f75110 |
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libtwamr: integrate set_sign.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 : set_sign.h |
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11 * Purpose : Builds sign vector according to "dn[]" and "cn[]". |
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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 ******************************************************************************** |
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17 * MODULE INCLUDE FILE AND VERSION ID |
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18 ******************************************************************************** |
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19 */ |
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20 #ifndef set_sign_h |
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21 #define set_sign_h "@(#)$Id $" |
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22 /* |
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23 ******************************************************************************** |
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24 * INCLUDE FILES |
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25 ******************************************************************************** |
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26 */ |
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27 #include "typedef.h" |
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28 |
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29 /* |
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30 ******************************************************************************** |
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31 * DECLARATION OF PROTOTYPES |
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32 ******************************************************************************** |
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33 */ |
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34 void set_sign(Word16 dn[], /* i/o : correlation between target and h[] */ |
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35 Word16 sign[], /* o : sign of dn[] */ |
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36 Word16 dn2[], /* o : maximum of correlation in each track. */ |
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37 Word16 n /* i : # of maximum correlations in dn2[] */ |
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38 ); |
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39 |
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40 void set_sign12k2 ( |
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41 Word16 dn[], /* i/o : correlation between target and h[] */ |
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42 Word16 cn[], /* i : residual after long term prediction */ |
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43 Word16 sign[], /* o : sign of d[n] */ |
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44 Word16 pos_max[], /* o : position of maximum correlation */ |
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45 Word16 nb_track, /* i : number of tracks tracks */ |
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46 Word16 ipos[], /* o : starting position for each pulse */ |
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47 Word16 step /* i : the step size in the tracks */ |
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48 ); |
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49 |
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50 #endif |