FreeCalypso > hg > gsm-codec-lib

annotate libgsmfr2/pp_state.c @ 282:9ee8ad3d4d30

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frtest: rm gsmfr-hand-test and gsmfr-max-out utils These hack programs were never properly documented and were written only as part of a debug chase, in pursuit of a bug that ultimately turned out to be in our then-hacky patch to osmo-bts-sysmo, before beginning of proper patches in Osmocom. These hack programs need to be dropped from the present sw package because they depend on old libgsm, and we are eliminating that dependency.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 14 Apr 2024 05:44:47 +0000
parents 573afa985df6
children 3a617e4e9b27
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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 FR preprocessor.
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4 */
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286d5f097eb4 libgsmfrp: implement comfort noise generation
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6 #include <stdint.h>
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7 #include <stdlib.h>
3cd5ad24b1d4 libgsmfrp: implement internal state
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8 #include <string.h>
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a33edf624061 libgsmfr2: start with API definition and port of libgsmfrp code
Mychaela Falconia <falcon@freecalypso.org>
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9 #include "tw_gsmfr.h"
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573afa985df6 libgsmfr2: split pp_state.h from pp_internal.h
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10 #include "pp_state.h"
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12 struct gsmfr_preproc_state *gsmfr_preproc_create(void)
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13 {
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14 struct gsmfr_preproc_state *st;
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16 st = malloc(sizeof(struct gsmfr_preproc_state));
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17 if (st)
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18 gsmfr_preproc_reset(st);
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19 return st;
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20 }
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22 void gsmfr_preproc_reset(struct gsmfr_preproc_state *st)
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23 {
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24 memset(st, 0, sizeof(struct gsmfr_preproc_state));
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25 st->cn_random_lfsr = PN_INITIAL_SEED;
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26 }