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annotate libtwamr/pow2.tab @ 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 190c4c9a3693
children
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190c4c9a3693 libtwamr: integrate pow2.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 : pow2.tab
190c4c9a3693 libtwamr: integrate pow2.c
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11 * Purpose : Table for routine Pow2().
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12 * $Id $
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13 *
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14 ********************************************************************************
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15 */
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16 static const Word16 table[33] =
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17 {
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18 16384, 16743, 17109, 17484, 17867, 18258, 18658, 19066, 19484, 19911,
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19 20347, 20792, 21247, 21713, 22188, 22674, 23170, 23678, 24196, 24726,
190c4c9a3693 libtwamr: integrate pow2.c
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20 25268, 25821, 26386, 26964, 27554, 28158, 28774, 29405, 30048, 30706,
190c4c9a3693 libtwamr: integrate pow2.c
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21 31379, 32066, 32767
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22 };