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annotate libtwamr/dec_lag3.h @ 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 fb001496ca8c
children
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fb001496ca8c libtwamr: integrate dec_lag3.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 : dec_lag3.h
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11 * Purpose : Decoding of fractional pitch lag with 1/3 resolution.
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12 * Extract the integer and fraction parts of the pitch lag from
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13 * the received adaptive codebook index.
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14 *
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15 ********************************************************************************
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16 */
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17 #ifndef dec_lag3_h
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18 #define dec_lag3_h "$Id $"
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19
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20 /*
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21 ********************************************************************************
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22 * INCLUDE FILES
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23 ********************************************************************************
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24 */
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25 #include "typedef.h"
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26
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27 /*
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28 ********************************************************************************
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29 * LOCAL VARIABLES AND TABLES
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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 * DEFINITION OF DATA TYPES
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36 ********************************************************************************
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37 */
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38
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39 /*
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40 ********************************************************************************
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41 * DECLARATION OF PROTOTYPES
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42 ********************************************************************************
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43 */
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44 /*************************************************************************
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45 * FUNCTION: Dec_lag3
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46 *
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47 * PURPOSE: Decoding of fractional pitch lag with 1/3 resolution.
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48 * Extract the integer and fraction parts of the pitch lag from
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49 * the received adaptive codebook index.
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50 *
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51 * See "Enc_lag3.c" for more details about the encoding procedure.
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52 *
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53 * The fractional lag in 1st and 3rd subframes is encoded with 8 bits
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54 * while that in 2nd and 4th subframes is relatively encoded with 4, 5
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55 * and 6 bits depending on the mode.
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56 *
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57 *************************************************************************/
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58 void Dec_lag3(Word16 index, /* i : received pitch index */
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59 Word16 T0_min, /* i : minimum of search range */
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60 Word16 T0_max, /* i : maximum of search range */
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61 Word16 i_subfr, /* i : subframe flag */
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62 Word16 T0_prev, /* i : integer pitch delay of last subframe
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63 used in 2nd and 4th subframes */
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64 Word16 * T0, /* o : integer part of pitch lag */
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65 Word16 * T0_frac, /* o : fractional part of pitch lag */
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66 Word16 flag4 /* i : flag for encoding with 4 bits */
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67 );
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68
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69 #endif