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annotate amrconv/amr_common_tbl.c @ 605:63f774192906

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gsmhr_decoder_twts002_in(): set BFI=1 SID=1 for invalid SID When a received TW-TS-002 RTP payload indicates invalid SID, which of the 3 possible BFI/SID combinations should we pass to our internal ETSI-based speech decoder or TFO engine? Our original code passed BFI=0 SID=1, but upon further reflection, BFI=1 SID=1 is a better choice. In the corner case where received invalid SID is fed to a full decoder in homed state, setting BFI=1 allows that decoder to emit zeros on PCM and stay homed, instead of launching into full decoding.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 04 Dec 2025 21:01:46 +0000
parents 78d1a6513393
children
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1 /*
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2 * This C module provides some common tables for AMR parsing programs.
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3 */
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4
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5 #include "amr_defs.h"
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6
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7 char *amr_mode_names[16] = {
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8 "MR475",
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9 "MR515",
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10 "MR59",
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11 "MR67",
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12 "MR74",
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13 "MR795",
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14 "MR102",
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15 "MR122",
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16 "SID",
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17 "EFR-SID",
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18 "TDMA-SID",
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19 "PDC-SID",
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20 "InvalidC",
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21 "InvalidD",
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22 "InvalidE",
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23 "NO_DATA"
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24 };
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25
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26 unsigned amr_bit_lengths[9] = {
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27 AMR_NBITS_475,
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28 AMR_NBITS_515,
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29 AMR_NBITS_59,
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30 AMR_NBITS_67,
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31 AMR_NBITS_74,
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32 AMR_NBITS_795,
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33 AMR_NBITS_102,
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34 AMR_NBITS_122,
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35 AMR_NBITS_SID
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36 };