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annotate libtwamr/ton_stab.h @ 468:4104b0390fab

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author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 13 May 2024 07:21:09 +0000
parents 8fff74ca83e8
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8fff74ca83e8 libtwamr: integrate ton_stab.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 : ton_stab.h
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11 * Purpose : Tone stabilization routines
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12 *
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13 ********************************************************************************
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14 */
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15 #ifndef ton_stab_h
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16 #define ton_stab_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 "tw_amr.h"
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24 #include "typedef.h"
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25 #include "cnst.h"
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26
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27 /*
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28 ********************************************************************************
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29 * LOCAL VARIABLES AND TABLES
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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 ********************************************************************************
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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 /* state variable */
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40 typedef struct {
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41
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42 /* counters */
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43 Word16 count;
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44
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45 /* gain history Q11 */
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46 Word16 gp[N_FRAME];
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47
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48 } tonStabState;
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49
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50 /*
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51 ********************************************************************************
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52 * DECLARATION OF PROTOTYPES
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53 ********************************************************************************
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54 */
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55
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56 void ton_stab_reset (tonStabState *st);
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57 /* reset of pre processing state (i.e. set state memory to zero)
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58 returns 0 on success
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59 */
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60
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61 Word16 check_lsp(tonStabState *st, /* i/o : State struct */
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62 Word16 *lsp /* i : unquantized LSP's */
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63 );
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64
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65 Word16 check_gp_clipping(tonStabState *st, /* i/o : State struct */
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66 Word16 g_pitch /* i : pitch gain */
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67 );
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68
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69 void update_gp_clipping(tonStabState *st, /* i/o : State struct */
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70 Word16 g_pitch /* i : pitch gain */
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71 );
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72
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73 #endif