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annotate libtwamr/ol_ltp.c @ 585:3c6bf0d26ee7 default tip

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TW-TS-005 reader: fix maximum line length bug TW-TS-005 section 4.1 states: The maximum allowed length of each line is 80 characters, not including the OS-specific newline encoding. The implementation of this line length limit in the TW-TS-005 hex file reader function in the present suite was wrong, such that lines of the full maximum length could not be read. Fix it. Note that this bug affects comment lines too, not just actual RTP payloads. Neither Annex A nor Annex B features an RTP payload format that goes to the maximum of 40 bytes, but if a comment line goes to the maximum allowed length of 80 characters not including the terminating newline, the bug will be triggered, necessitating the present fix.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 25 Feb 2025 07:49:28 +0000
parents f17e42c63058
children
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f17e42c63058 libtwamr: integrate ol_ltp.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 : ol_ltp.c
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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
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16 /*
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17 ********************************************************************************
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18 * MODULE INCLUDE FILE AND VERSION ID
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19 ********************************************************************************
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20 */
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21 #include "namespace.h"
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22 #include "ol_ltp.h"
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23
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24 /*
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25 ********************************************************************************
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26 * INCLUDE FILES
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27 ********************************************************************************
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28 */
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29 #include "typedef.h"
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30 #include "cnst.h"
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31 #include "pitch_ol.h"
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32 #include "p_ol_wgh.h"
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33 #include "no_count.h"
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34 #include "basic_op.h"
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35
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36 /*
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37 ********************************************************************************
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38 * LOCAL VARIABLES AND TABLES
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39 ********************************************************************************
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40 */
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41
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42 /*
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43 ********************************************************************************
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44 * PUBLIC PROGRAM CODE
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45 ********************************************************************************
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46 */
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47 int ol_ltp(
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48 pitchOLWghtState *st, /* i/o : State struct */
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49 vadState *vadSt, /* i/o : VAD state struct */
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50 enum Mode mode, /* i : coder mode */
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51 Word16 wsp[], /* i : signal used to compute the OL pitch, Q0 */
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52 /* uses signal[-pit_max] to signal[-1] */
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53 Word16 *T_op, /* o : open loop pitch lag, Q0 */
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54 Word16 old_lags[], /* i : history with old stored Cl lags */
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55 Word16 ol_gain_flg[], /* i : OL gain flag */
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56 Word16 idx, /* i : index */
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57 Flag dtx /* i : dtx flag; use dtx=1, do not use dtx=0 */
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58 )
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59 {
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60 test ();
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61 if (sub (mode, MR102) != 0 )
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62 {
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63 ol_gain_flg[0] = 0; move16 ();
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64 ol_gain_flg[1] = 0; move16 ();
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65 }
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66
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67 test (); test ();
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68 if (sub (mode, MR475) == 0 || sub (mode, MR515) == 0 )
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69 {
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70 *T_op = Pitch_ol(vadSt, mode, wsp, PIT_MIN, PIT_MAX, L_FRAME, idx, dtx);
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71 move16 ();
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72 }
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73 else
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74 {
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75 if ( sub (mode, MR795) <= 0 )
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76 {
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77 test();
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78 *T_op = Pitch_ol(vadSt, mode, wsp, PIT_MIN, PIT_MAX, L_FRAME_BY2,
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79 idx, dtx);
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80 move16 ();
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81 }
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82 else if ( sub (mode, MR102) == 0 )
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83 {
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84 test(); test();
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85 *T_op = Pitch_ol_wgh(st, vadSt, wsp, PIT_MIN, PIT_MAX, L_FRAME_BY2,
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86 old_lags, ol_gain_flg, idx, dtx);
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87 move16 ();
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88 }
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89 else
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90 {
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91 test(); test();
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92 *T_op = Pitch_ol(vadSt, mode, wsp, PIT_MIN_MR122, PIT_MAX,
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93 L_FRAME_BY2, idx, dtx);
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94 move16 ();
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95 }
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96 }
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97 return 0;
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98 }