FreeCalypso > hg > gsm-codec-lib
annotate libtwamr/p_ol_wgh.h @ 446:e2f824ffd08a
amrtest: implement twamr-decode-r
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Fri, 10 May 2024 00:30:39 +0000 |
parents | 48c7f8e8c9af |
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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 : p_ol_wgh.h |
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11 * Purpose : Compute the open loop pitch lag with weighting. |
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12 * |
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13 ******************************************************************************** |
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14 */ |
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15 #ifndef p_ol_wgh_h |
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16 #define p_ol_wgh_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 "vad.h" |
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26 |
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27 /* |
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28 ******************************************************************************** |
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29 * DEFINITION OF DATA TYPES |
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30 ******************************************************************************** |
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31 */ |
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32 /* state variable */ |
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33 typedef struct { |
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34 Word16 old_T0_med; |
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35 Word16 ada_w; |
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36 Word16 wght_flg; |
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37 } pitchOLWghtState; |
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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 void p_ol_wgh_reset (pitchOLWghtState *st); |
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46 /* reset of pre processing state (i.e. set state memory to zero) |
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47 returns 0 on success |
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48 */ |
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49 |
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50 Word16 Pitch_ol_wgh ( /* o : open loop pitch lag */ |
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51 pitchOLWghtState *st, /* i/o : State struct */ |
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52 vadState *vadSt, /* i/o : VAD state struct */ |
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53 Word16 signal[], /* i : signal used to compute the open loop pitch */ |
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54 /* signal[-pit_max] to signal[-1] should be known */ |
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55 Word16 pit_min, /* i : minimum pitch lag */ |
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56 Word16 pit_max, /* i : maximum pitch lag */ |
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57 Word16 L_frame, /* i : length of frame to compute pitch */ |
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58 Word16 old_lags[], /* i : history with old stored Cl lags */ |
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59 Word16 ol_gain_flg[], /* i : OL gain flag */ |
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60 Word16 idx, /* i : index */ |
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61 Flag dtx /* i : dtx flag; use dtx=1, do not use dtx=0 */ |
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62 ); |
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63 |
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64 #endif |