FreeCalypso > hg > gsm-codec-lib
annotate libtwamr/ex_ctrl.h @ 425:9499d12d315b
libgsmefr/gsm_efr.h: update header comment
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Tue, 07 May 2024 19:18:57 +0000 |
parents | 3f27ca24c620 |
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libtwamr: integrate ex_ctrl.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 : ex_ctrl.h |
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11 * Purpose : Excitation Control module in background noise |
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12 * |
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13 ******************************************************************************** |
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14 */ |
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15 #ifndef ex_ctrl_h |
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16 #define ex_ctrl_h "$Id $" |
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17 |
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18 /* |
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19 ******************************************************************************** |
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20 * INCLUDE FILES |
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21 ******************************************************************************** |
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22 */ |
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23 #include "typedef.h" |
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24 #include "cnst.h" |
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25 |
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26 /* |
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27 ******************************************************************************** |
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28 * LOCAL VARIABLES AND TABLES |
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29 ******************************************************************************** |
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30 */ |
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31 #define L_ENERGYHIST 60 |
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32 |
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33 /* |
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34 ******************************************************************************** |
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35 * DEFINITION OF DATA TYPES |
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36 ******************************************************************************** |
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37 */ |
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38 |
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39 /* |
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40 ******************************************************************************** |
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41 * DECLARATION OF PROTOTYPES |
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42 ******************************************************************************** |
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43 */ |
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44 |
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45 /* |
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46 ************************************************************************** |
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47 * |
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48 * Function : Ex_ctrl |
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49 * Purpose : Charaterice synthesis speech and detect background noise |
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50 * Returns : background noise decision; 0 = bgn, 1 = no bgn |
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51 * |
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52 ************************************************************************** |
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53 */ |
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54 Word16 Ex_ctrl (Word16 excitation[], /*i/o: Current subframe excitation */ |
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55 Word16 excEnergy, /* i : Exc. Energy, sqrt(totEx*totEx)*/ |
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56 Word16 exEnergyHist[], /* i : History of subframe energies */ |
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57 Word16 voicedHangover, /* i : # of fr. after last voiced fr.*/ |
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58 Word16 prevBFI, /* i : Set i previous BFI */ |
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59 Word16 carefulFlag /* i : Restrict dymamic in scaling */ |
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60 ); |
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61 |
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62 #endif |