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; } }