7 static unsigned char *_BITBUF;
8 static unsigned int _BITPOS;
9 static unsigned int _BUFLEN;
11 void printbits(unsigned int val)
16 if (val & (1<<(31-i++)))
23 void printbuf_head(unsigned char *buf)
25 //printbits(buf[3]<<24 | buf[2]<<16 | buf[1]<<8 | buf[0]);
26 printbits(buf[0]<<24 | buf[1]<<16 | buf[2]<<8 | buf[3]);
29 unsigned int bitstream_get_bits(unsigned char *data, unsigned int bitOffset, unsigned int numBits)
32 unsigned int mask = (1 << numBits) - 1;
34 data += ((bitOffset / 8) -3);
36 // printf("0x%08x ", val);
38 val = val << (bitOffset % 8);
39 // printf("0x%08x ", val);
41 val = val >> (32-numBits);
42 // printf("0x%08x %d ", val, (32-numBits));
45 // printf("0x%08x\n", val);
50 int bitstream_bits_remaining(void)
52 return (_BUFLEN - _BITPOS);
55 unsigned int bitstream_get_next_bits(unsigned int nbits)
59 res = bitstream_get_bits(_BITBUF, _BITPOS, nbits);
65 void bitstream_start(unsigned char *buf, unsigned int len)