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annotate libgsmefr/dec_create.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 23656d874524
children
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3cd5ad24b1d4 libgsmfrp: implement internal state
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1 /*
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2 * In this module we implement allocation and initialization
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3 * of state structures for our GSM EFR decoder.
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4 */
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6 #include <stdlib.h>
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7 #include "gsm_efr.h"
722959d9410f libgsmefr: implement EFR_{en,de}coder_create() functions
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8 #include "typedef.h"
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9 #include "cnst.h"
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10 #include "dec_state.h"
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12 const unsigned EFR_decoder_state_size = sizeof(struct EFR_decoder_state);
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14 struct EFR_decoder_state *EFR_decoder_create(void)
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15 {
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16 struct EFR_decoder_state *st;
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18 st = malloc(sizeof(struct EFR_decoder_state));
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19 if (st)
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20 EFR_decoder_reset(st);
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21 return st;
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22 }