FreeCalypso > hg > gsm-codec-lib
annotate libtwamr/d_plsf.c @ 368:3a25bdfad0d8
libtwamr: integrate q_gain_c.c
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Mon, 06 May 2024 03:18:47 +0000 |
parents | 3f574255c3aa |
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rev | line source |
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libtwamr: integrate d_plsf.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 : d_plsf.c |
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11 * Purpose : common part (init, exit, reset) of LSF decoder |
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12 * module (rest in d_plsf_3.c and d_plsf_5.c) |
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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 |
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18 /* |
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19 ***************************************************************************** |
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20 * MODULE INCLUDE FILE AND VERSION ID |
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21 ***************************************************************************** |
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22 */ |
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23 #include "namespace.h" |
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24 #include "d_plsf.h" |
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25 |
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26 /* |
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27 ***************************************************************************** |
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28 * INCLUDE FILES |
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29 ***************************************************************************** |
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30 */ |
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31 #include "typedef.h" |
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32 #include "basic_op.h" |
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33 #include "no_count.h" |
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34 #include "cnst.h" |
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35 #include "memops.h" |
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36 #include "q_plsf5_tab.h" |
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37 |
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38 /* |
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39 *--------------------------------------------------* |
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40 * Constants (defined in cnst.h) * |
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41 *--------------------------------------------------* |
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42 * M : LPC order |
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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 * PUBLIC PROGRAM CODE |
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49 ***************************************************************************** |
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50 */ |
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51 |
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52 /* |
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53 ************************************************************************** |
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54 * |
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55 * Function : D_plsf_reset |
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56 * Purpose : Resets state memory |
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57 * |
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58 ************************************************************************** |
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59 */ |
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60 void D_plsf_reset (D_plsfState *state) |
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61 { |
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62 Word16 i; |
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63 |
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64 for (i = 0; i < M; i++){ |
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65 state->past_r_q[i] = 0; /* Past quantized prediction error */ |
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66 } |
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67 |
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68 /* Past dequantized lsfs */ |
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69 Copy(mean_lsf, &state->past_lsf_q[0], M); |
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70 } |