blob: 91c444926f96cce6c437d8f6a285bb51376fecf9 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
typedef short int int16_t;
typedef unsigned char uint8_t;
typedef struct {
int16_t LARc[8];
int16_t Nc[4];
int16_t bc[4];
int16_t Mc[4];
int16_t xmaxc[4];
int16_t xMc[4][13];
} gsm0610_frame_t;
int gsm0610_unpack_voip(gsm0610_frame_t * s, const uint8_t c[33])
{
int i;
for (i = 0; i < 4; i++) {
s->Nc[i] = (*c >> 1) & 0x7F;
s->bc[i] = (*c++ & 0x1) << 1;
s->bc[i] |= (*c >> 7) & 0x1;
s->Mc[i] = (*c >> 5) & 0x3;
s->xmaxc[i] = (*c++ & 0x1F) << 1;
s->xmaxc[i] |= (*c >> 7) & 0x1;
s->xMc[i][0] = (*c >> 4) & 0x7;
s->xMc[i][1] = (*c >> 1) & 0x7;
s->xMc[i][2] = (*c++ & 0x1) << 2;
s->xMc[i][2] |= (*c >> 6) & 0x3;
s->xMc[i][3] = (*c >> 3) & 0x7;
s->xMc[i][4] = *c++ & 0x7;
s->xMc[i][10] |= (*c >> 6) & 0x3;
s->xMc[i][11] = (*c >> 3) & 0x7;
s->xMc[i][12] = *c++ & 0x7;
}
}
|