func: static void switch_buffer(MPADecodeContext *s, int *pos, int *end_pos,
  
                            int *end_pos2)
  
  {
  
      if (s->in_gb.buffer && *pos >= s->gb.size_in_bits) {
  
          s->gb           = s->in_gb;
  
          s->in_gb.buffer = NULL;
  
          assert((get_bits_count(&s->gb) & 7) == 0);
  
          skip_bits_long(&s->gb, *pos - *end_pos);
  
          *end_pos2 =
  
          *end_pos  = *end_pos2 + get_bits_count(&s->gb) - *pos;
  
          *pos      = get_bits_count(&s->gb);
  
      }
  
  }
  