FreeCalypso > hg > gsm-codec-lib

annotate libgsmhr1/sid_reset.c @ 540:5595293e4f29

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gsmx-to-tw5a utility: use emit_hex_frame() in libtest
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 22 Sep 2024 00:36:35 +0000
parents aee13079db3c
children
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495
aee13079db3c libgsmhr1: implement SID reset
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
aee13079db3c libgsmhr1: implement SID reset
Mychaela Falconia <falcon@freecalypso.org>
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2 * The function in this module implements reset of HRv1 SID codeword,
aee13079db3c libgsmhr1: implement SID reset
Mychaela Falconia <falcon@freecalypso.org>
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3 * for rejuvenating SID frames that may have been corrupted, but were still
aee13079db3c libgsmhr1: implement SID reset
Mychaela Falconia <falcon@freecalypso.org>
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4 * accepted as valid SID.
aee13079db3c libgsmhr1: implement SID reset
Mychaela Falconia <falcon@freecalypso.org>
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5 */
aee13079db3c libgsmhr1: implement SID reset
Mychaela Falconia <falcon@freecalypso.org>
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6
aee13079db3c libgsmhr1: implement SID reset
Mychaela Falconia <falcon@freecalypso.org>
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7 #include <stdint.h>
aee13079db3c libgsmhr1: implement SID reset
Mychaela Falconia <falcon@freecalypso.org>
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8 #include <string.h>
aee13079db3c libgsmhr1: implement SID reset
Mychaela Falconia <falcon@freecalypso.org>
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9 #include "tw_gsmhr.h"
aee13079db3c libgsmhr1: implement SID reset
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10
aee13079db3c libgsmhr1: implement SID reset
Mychaela Falconia <falcon@freecalypso.org>
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11 void gsmhr_ts101318_set_sid_codeword(uint8_t *payload)
aee13079db3c libgsmhr1: implement SID reset
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12 {
aee13079db3c libgsmhr1: implement SID reset
Mychaela Falconia <falcon@freecalypso.org>
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13 payload[4] |= 0x7F;
aee13079db3c libgsmhr1: implement SID reset
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14 memset(payload + 5, 0xFF, 9);
aee13079db3c libgsmhr1: implement SID reset
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15 }