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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 54f6bc41ed10
children
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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 : az_lsp.h
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11 *
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12 ********************************************************************************
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13 */
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14 #ifndef az_lsp_h
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15 #define az_lsp_h "$Id $"
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16
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17 /*
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18 ********************************************************************************
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19 * INCLUDE FILES
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20 ********************************************************************************
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21 */
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22 #include "typedef.h"
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23
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24 /*
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25 ********************************************************************************
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26 * DEFINITION OF DATA TYPES
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27 ********************************************************************************
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28 */
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29
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30 /*
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31 ********************************************************************************
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32 * DECLARATION OF PROTOTYPES
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33 ********************************************************************************
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34 */
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35 /*
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36 **************************************************************************
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37 *
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38 * Function : Az_lsp
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39 * Purpose : Compute the LSPs from the LP coefficients
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40 * Description : - The sum and difference filters are computed
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41 * and divided by 1+z^{-1} and 1-z^{-1}, respectively.
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42 *
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43 * f1[i] = a[i] + a[11-i] - f1[i-1] ; i=1,...,5
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44 * f2[i] = a[i] - a[11-i] + f2[i-1] ; i=1,...,5
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45 *
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46 * - The roots of F1(z) and F2(z) are found using
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47 * Chebyshev polynomial evaluation. The polynomials
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48 * are evaluated at 60 points regularly spaced in the
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49 * frequency domain. The sign change interval is
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50 * subdivided 4 times to better track the root. The
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51 * LSPs are found in the cosine domain [1,-1].
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52 *
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53 * - If less than 10 roots are found, the LSPs from
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54 * the past frame are used.
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55 * Returns : void
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56 *
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57 **************************************************************************
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58 */
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59 void Az_lsp (
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60 Word16 a[], /* (i) : predictor coefficients (MP1) */
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61 Word16 lsp[], /* (o) : line spectral pairs (M) */
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62 Word16 old_lsp[] /* (i) : old lsp[] (in case not found 10 roots) (M)*/
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63 );
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64
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65 #endif