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annotate libgsmhr1/sid_cw_params.c @ 577:d68b2c92464a

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libgsmhr1: bring in parts of dtx.[ch] needed for RxFE
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 13 Feb 2025 03:06:11 +0000
parents 993cb9273f89
children
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574
993cb9273f89 libgsmhr1: add function that sets SID codeword at param level
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
993cb9273f89 libgsmhr1: add function that sets SID codeword at param level
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2 * The function in this module fills parameters 4 through 17 of
993cb9273f89 libgsmhr1: add function that sets SID codeword at param level
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3 * generated SID frames, setting them to the required SID codeword.
993cb9273f89 libgsmhr1: add function that sets SID codeword at param level
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4 * It can also be used to transform a speech frame into a SID frame
993cb9273f89 libgsmhr1: add function that sets SID codeword at param level
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5 * with the same R0 and LPC parameters.
993cb9273f89 libgsmhr1: add function that sets SID codeword at param level
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6 */
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7
993cb9273f89 libgsmhr1: add function that sets SID codeword at param level
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8 #include <stdint.h>
993cb9273f89 libgsmhr1: add function that sets SID codeword at param level
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9 #include "tw_gsmhr.h"
993cb9273f89 libgsmhr1: add function that sets SID codeword at param level
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10
993cb9273f89 libgsmhr1: add function that sets SID codeword at param level
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11 void gsmhr_set_sid_cw_params(int16_t *params)
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12 {
993cb9273f89 libgsmhr1: add function that sets SID codeword at param level
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13 /* Int_LPC and Mode */
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14 params[4] = 1;
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15 params[5] = 3;
993cb9273f89 libgsmhr1: add function that sets SID codeword at param level
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16 /* subframe 1 */
993cb9273f89 libgsmhr1: add function that sets SID codeword at param level
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17 params[6] = 0xFF;
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18 params[7] = 0x1FF;
993cb9273f89 libgsmhr1: add function that sets SID codeword at param level
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19 params[8] = 0x1F;
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20 /* subframe 2 */
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21 params[9] = 0xF;
993cb9273f89 libgsmhr1: add function that sets SID codeword at param level
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22 params[10] = 0x1FF;
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23 params[11] = 0x1F;
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24 /* subframe 3 */
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25 params[12] = 0xF;
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26 params[13] = 0x1FF;
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27 params[14] = 0x1F;
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28 /* subframe 4 */
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29 params[15] = 0xF;
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30 params[16] = 0x1FF;
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31 params[17] = 0x1F;
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32 }