FreeCalypso > hg > gsm-codec-lib

annotate libtwamr/tseq_in.c @ 444:fe4983b05230

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amrtest: implement twamr-decode
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 09 May 2024 23:35:25 +0000
parents 3ce30a95769e
children
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1 /*
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2 * In this module we implement decoder input conversion from 3GPP
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3 * test sequence format to our internal struct amr_param_frame.
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4 */
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5
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6 #include <stdint.h>
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7 #include <string.h>
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8 #include "tw_amr.h"
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9 #include "namespace.h"
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10 #include "typedef.h"
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11 #include "cnst.h"
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12 #include "bits2prm.h"
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13
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14 int amr_frame_from_tseq(const uint16_t *cod, int use_rxtype,
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15 struct amr_param_frame *frame)
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16 {
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17 enum RXFrameType rx_type;
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18 int rc;
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19
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20 if (use_rxtype) {
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21 if (cod[0] >= RX_N_FRAMETYPES)
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22 return -1;
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23 rx_type = cod[0];
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24 } else {
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25 rc = amr_txtype_to_rxtype(cod[0], &rx_type);
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26 if (rc < 0)
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27 return -1;
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28 }
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29 frame->type = rx_type;
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30 if (rx_type == RX_NO_DATA) {
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31 frame->mode = 0xFF;
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32 return 0;
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33 }
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34 if (cod[MAX_SERIAL_SIZE+1] > 7)
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35 return -2;
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36 frame->mode = cod[MAX_SERIAL_SIZE+1];
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37 switch (rx_type) {
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38 case RX_SPEECH_GOOD:
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39 case RX_SPEECH_DEGRADED:
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40 case RX_SPEECH_BAD:
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41 Bits2prm(frame->mode, cod + 1, frame->param);
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42 break;
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43 case RX_SID_UPDATE:
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44 case RX_SID_BAD:
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45 Bits2prm(MRDTX, cod + 1, frame->param);
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46 break;
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47 }
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48 return 0;
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49 }