FreeCalypso > hg > gsm-codec-lib
annotate libtwamr/q_plsf.h @ 449:2af2b5c12268
Library-versions: libtwamr is officially version 1.0.0
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Fri, 10 May 2024 01:43:05 +0000 |
parents | 4a8cabac281e |
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libtwamr: integrate q_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 : q_plsf.h |
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11 * Purpose : common include file for LSF vector/matrix quanti- |
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12 * sation modules (q_plsf_3.c/q_plsf_5.c) |
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13 * |
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14 ******************************************************************************** |
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15 */ |
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16 #ifndef q_plsf_h |
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17 #define q_plsf_h "$Id $" |
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18 |
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19 /* |
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20 ******************************************************************************** |
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21 * INCLUDE FILES |
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22 ******************************************************************************** |
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23 */ |
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24 #include "tw_amr.h" |
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25 #include "typedef.h" |
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26 #include "cnst.h" |
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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 typedef struct { |
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33 Word16 past_rq[M]; /* Past quantized prediction error, Q15 */ |
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34 } Q_plsfState; |
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35 |
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36 /* |
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37 ******************************************************************************** |
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38 * DECLARATION OF PROTOTYPES |
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39 ******************************************************************************** |
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40 */ |
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41 |
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42 void Q_plsf_reset (Q_plsfState *st); |
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43 /* reset of state (i.e. set state memory to zero) |
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44 returns 0 on success |
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45 */ |
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46 |
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47 void Q_plsf_3( |
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48 Q_plsfState *st, /* i/o: state struct */ |
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49 enum Mode mode, /* i : coder mode */ |
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50 Word16 *lsp1, /* i : 1st LSP vector Q15 */ |
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51 Word16 *lsp1_q, /* o : quantized 1st LSP vector Q15 */ |
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52 Word16 *indice, /* o : quantization indices of 3 vectors Q0 */ |
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53 Word16 *pred_init_i /* o : init index for MA prediction in DTX mode */ |
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54 ); |
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55 |
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56 void Q_plsf_5 ( |
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57 Q_plsfState *st, |
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58 Word16 *lsp1, /* i : 1st LSP vector, Q15 */ |
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59 Word16 *lsp2, /* i : 2nd LSP vector, Q15 */ |
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60 Word16 *lsp1_q, /* o : quantized 1st LSP vector, Q15 */ |
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61 Word16 *lsp2_q, /* o : quantized 2nd LSP vector, Q15 */ |
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62 Word16 *indice /* o : quantization indices of 5 matrices, Q0 */ |
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63 ); |
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64 |
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65 #endif |