FreeCalypso > hg > ice1-trau-tester

annotate libhr/pack_frame.c @ 40:e1eabf554a75

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libhr: small subset of WIP libgsmhr1
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 30 Aug 2024 16:41:56 +0000
parents
children
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40
e1eabf554a75 libhr: small subset of WIP libgsmhr1
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
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2 * This module holds our gsmhr_pack_ts101318() function: packing a single
e1eabf554a75 libhr: small subset of WIP libgsmhr1
Mychaela Falconia <falcon@freecalypso.org>
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3 * GSM-HR codec frame from an array of broken-down parameters into TS 101 318
e1eabf554a75 libhr: small subset of WIP libgsmhr1
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4 * format.
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5 */
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6
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7 #include <stdint.h>
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8 #include "tw_gsmhr.h"
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9
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10 void gsmhr_pack_ts101318(const int16_t *params, uint8_t *payload)
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11 {
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12 uint8_t *c = payload;
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13
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14 if (params[5]) {
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15 /* voiced modes */
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16 *c++ = ((params[0] & 0x1F) << 3)
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17 | ((params[1] >> 8) & 0x7);
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18 *c++ = params[1] & 0xFF;
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19 *c++ = ((params[2] >> 1) & 0xFF);
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20 *c++ = ((params[2] & 0x1) << 7)
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21 | ((params[3] >> 1) & 0x7F);
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22 *c++ = ((params[3] & 0x1) << 7)
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23 | ((params[4] & 0x1) << 6)
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24 | ((params[5] & 0x3) << 4)
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25 | ((params[6] >> 4) & 0xF);
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26 *c++ = ((params[6] & 0xF) << 4)
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27 | ((params[7] >> 5) & 0xF);
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28 *c++ = ((params[7] & 0x1F) << 3)
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29 | ((params[8] >> 2) & 0x7);
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30 *c++ = ((params[8] & 0x3) << 6)
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31 | ((params[9] & 0xF) << 2)
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32 | ((params[10] >> 7) & 0x3);
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33 *c++ = ((params[10] & 0x7F) << 1)
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34 | ((params[11] >> 4) & 0x1);
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35 *c++ = ((params[11] & 0xF) << 4)
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36 | (params[12] & 0xF);
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37 *c++ = ((params[13] >> 1) & 0xFF);
e1eabf554a75 libhr: small subset of WIP libgsmhr1
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38 *c++ = ((params[13] & 0x1) << 7)
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39 | ((params[14] & 0x1F) << 2)
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40 | ((params[15] >> 2) & 0x3);
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41 *c++ = ((params[15] & 0x3) << 6)
e1eabf554a75 libhr: small subset of WIP libgsmhr1
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42 | ((params[16] >> 3) & 0x3F);
e1eabf554a75 libhr: small subset of WIP libgsmhr1
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43 *c++ = ((params[16] & 0x7) << 5)
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44 | (params[17] & 0x1F);
e1eabf554a75 libhr: small subset of WIP libgsmhr1
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45 } else {
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46 /* unvoiced mode */
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47 *c++ = ((params[0] & 0x1F) << 3)
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48 | ((params[1] >> 8) & 0x7);
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49 *c++ = params[1] & 0xFF;
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50 *c++ = ((params[2] >> 1) & 0xFF);
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51 *c++ = ((params[2] & 0x1) << 7)
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52 | ((params[3] >> 1) & 0x7F);
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53 *c++ = ((params[3] & 0x1) << 7)
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54 | ((params[4] & 0x1) << 6)
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55 | ((params[5] & 0x3) << 4)
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56 | ((params[6] >> 3) & 0xF);
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57 *c++ = ((params[6] & 0x7) << 5)
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58 | ((params[7] >> 2) & 0x1F);
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59 *c++ = ((params[7] & 0x3) << 6)
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60 | ((params[8] & 0x1F) << 1)
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61 | ((params[9] >> 6) & 0x1);
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62 *c++ = ((params[9] & 0x3F) << 2)
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63 | ((params[10] >> 5) & 0x3);
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64 *c++ = ((params[10] & 0x1F) << 3)
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65 | ((params[11] >> 2) & 0x7);
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66 *c++ = ((params[11] & 0x3) << 6)
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67 | ((params[12] >> 1) & 0x3F);
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68 *c++ = ((params[12] & 0x1) << 7)
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69 | (params[13] & 0x7F);
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70 *c++ = ((params[14] & 0x1F) << 3)
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71 | ((params[15] >> 4) & 0x7);
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72 *c++ = ((params[15] & 0xF) << 4)
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73 | ((params[16] >> 3) & 0xF);
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74 *c++ = ((params[16] & 0x7) << 5)
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75 | (params[17] & 0x1F);
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76 }
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77 }