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annotate libtwamr/pitch_ol.h @ 608:d4e42ec4a688 default tip

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hrutil: new program gsmhr-decode-r
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 05 Dec 2025 09:01:14 +0000
parents 01c4becb9fda
children
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01c4becb9fda libtwamr: integrate pitch_ol.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 : pitch_ol.h
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11 * Purpose : Compute the open loop pitch lag.
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12 *
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13 ********************************************************************************
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14 */
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15 #ifndef pitch_ol_h
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16 #define pitch_ol_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
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33 /*
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34 ********************************************************************************
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35 * DECLARATION OF PROTOTYPES
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36 ********************************************************************************
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37 */
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38 Word16 Pitch_ol ( /* o : open loop pitch lag */
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39 vadState *vadSt, /* i/o : VAD state struct */
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40 enum Mode mode, /* i : coder mode */
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41 Word16 signal[], /* i : signal used to compute the open loop pitch */
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42 /* signal[-pit_max] to signal[-1] should be known */
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43 Word16 pit_min, /* i : minimum pitch lag */
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44 Word16 pit_max, /* i : maximum pitch lag */
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45 Word16 L_frame, /* i : length of frame to compute pitch */
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46 Word16 idx, /* i : frame index */
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47 Flag dtx /* i : dtx flag; use dtx=1, do not use dtx=0 */
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48 );
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49
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50 #endif