bfin-3510/gsm0610_decode.i

   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;
  11 int 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 }