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