FreeCalypso > hg > gsm-codec-lib
annotate libtwamr/ton_stab.h @ 435:9f354d2aea13
efrtest: split etsi-dec.c for code reuse
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Wed, 08 May 2024 05:25:47 +0000 |
parents | 8fff74ca83e8 |
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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 |