FreeCalypso > hg > gsm-codec-lib
annotate libgsmefr/weight_a.c @ 411:bd5614fc780a
libtwamr: integrate VAD2 lflg_upd.c
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Tue, 07 May 2024 01:18:25 +0000 |
parents | b651adfce60d |
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rev | line source |
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libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
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1 /************************************************************************* |
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libgsmefr: import most *.c files from ETSI source
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2 * |
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libgsmefr: import most *.c files from ETSI source
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3 * FUNCTION: Weight_Ai |
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libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
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4 * |
49dd1ac8e75b
libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
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5 * PURPOSE: Spectral expansion of LP coefficients. (order==10) |
49dd1ac8e75b
libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
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6 * |
49dd1ac8e75b
libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
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7 * DESCRIPTION: |
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libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
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8 * a_exp[i] = a[i] * fac[i-1] ,i=1,10 |
49dd1ac8e75b
libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
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9 * |
49dd1ac8e75b
libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
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10 *************************************************************************/ |
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11 |
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12 #include "gsm_efr.h" |
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13 #include "typedef.h" |
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14 #include "namespace.h" |
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15 #include "basic_op.h" |
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16 #include "no_count.h" |
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libgsmefr: weight_a.c compiles
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parents:
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17 #include "sig_proc.h" |
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libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
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18 |
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Mychaela Falconia <falcon@freecalypso.org>
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19 /* m = LPC order == 10 */ |
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20 #define m 10 |
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Mychaela Falconia <falcon@freecalypso.org>
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21 |
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Mychaela Falconia <falcon@freecalypso.org>
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22 void Weight_Ai ( |
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Mychaela Falconia <falcon@freecalypso.org>
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23 Word16 a[], /* (i) : a[m+1] LPC coefficients (m=10) */ |
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24 const Word16 fac[], /* (i) : Spectral expansion factors. */ |
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libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
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25 Word16 a_exp[] /* (o) : Spectral expanded LPC coefficients */ |
49dd1ac8e75b
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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26 ) |
49dd1ac8e75b
libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
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27 { |
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28 Word16 i; |
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Mychaela Falconia <falcon@freecalypso.org>
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29 |
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Mychaela Falconia <falcon@freecalypso.org>
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30 a_exp[0] = a[0]; move16 (); |
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31 for (i = 1; i <= m; i++) |
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Mychaela Falconia <falcon@freecalypso.org>
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32 { |
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Mychaela Falconia <falcon@freecalypso.org>
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33 a_exp[i] = round (L_mult (a[i], fac[i - 1])); move16 (); |
49dd1ac8e75b
libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
parents:
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34 } |
49dd1ac8e75b
libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
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35 |
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libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
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36 return; |
49dd1ac8e75b
libgsmefr: import most *.c files from ETSI source
Mychaela Falconia <falcon@freecalypso.org>
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37 } |