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45516216 | 1 | typedef short int int16_t; |
2 | typedef unsigned char uint8_t; | |
3 | typedef struct { | |
4 | int16_t LARc[8]; | |
5 | int16_t Nc[4]; | |
6 | int16_t bc[4]; | |
7 | int16_t Mc[4]; | |
8 | int16_t xmaxc[4]; | |
9 | int16_t xMc[4][13]; | |
10 | } | |
11 | gsm0610_frame_t; | |
12 | int gsm0610_unpack_voip(gsm0610_frame_t *s, const uint8_t c[33]) { | |
13 | int i; | |
14 | for (i = 0; | |
15 | i < 4; | |
16 | i++) { | |
17 | s->Nc[i] = (*c >> 1) & 0x7F; | |
18 | s->bc[i] = (*c++ & 0x1) << 1; | |
19 | s->bc[i] |= (*c >> 7) & 0x1; | |
20 | s->Mc[i] = (*c >> 5) & 0x3; | |
21 | s->xmaxc[i] = (*c++ & 0x1F) << 1; | |
22 | s->xmaxc[i] |= (*c >> 7) & 0x1; | |
23 | s->xMc[i][0] = (*c >> 4) & 0x7; | |
24 | s->xMc[i][1] = (*c >> 1) & 0x7; | |
25 | s->xMc[i][2] = (*c++ & 0x1) << 2; | |
26 | s->xMc[i][2] |= (*c >> 6) & 0x3; | |
27 | s->xMc[i][3] = (*c >> 3) & 0x7; | |
28 | s->xMc[i][4] = *c++ & 0x7; | |
29 | s->xMc[i][10] |= (*c >> 6) & 0x3; | |
30 | s->xMc[i][11] = (*c >> 3) & 0x7; | |
31 | s->xMc[i][12] = *c++ & 0x7; | |
32 | } | |
33 | } |