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annotate libtwamr/q_gain_c.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 3a25bdfad0d8
children
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3a25bdfad0d8 libtwamr: integrate q_gain_c.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 : q_gain_c.h
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11 * Purpose : Scalar quantization of the innovative
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12 * : codebook gain.
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13 *
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14 ********************************************************************************
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15 */
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16 #ifndef q_gain_c_h
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17 #define q_gain_c_h "$Id $"
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18
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19 /*
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20 ********************************************************************************
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21 * INCLUDE FILES
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22 ********************************************************************************
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23 */
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24 #include "tw_amr.h"
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25 #include "typedef.h"
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26 #include "gc_pred.h"
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27
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28 /*
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29 ********************************************************************************
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30 * DECLARATION OF PROTOTYPES
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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 * Function q_gain_code() *
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36 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *
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37 * Scalar quantization of the innovative codebook gain. *
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38 * *
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39 * gc_pred() is used for MA prediction of the innovation energy *
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40 *--------------------------------------------------------------------------*/
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41 Word16 q_gain_code ( /* o : quantization index, Q0 */
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42 enum Mode mode, /* i : AMR mode */
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43 Word16 exp_gcode0, /* i : predicted CB gain (exponent), Q0 */
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44 Word16 frac_gcode0, /* i : predicted CB gain (fraction), Q15 */
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45 Word16 *gain, /* i/o: quantized fixed codebook gain, Q1 */
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46 Word16 *qua_ener_MR122, /* o : quantized energy error, Q10 */
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47 /* (for MR122 MA predictor update) */
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48 Word16 *qua_ener /* o : quantized energy error, Q10 */
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49 /* (for other MA predictor update) */
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50 );
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51
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52 #endif