bitreader_helper Namespace Reference

Data Structures
class	bitreader
class	bitreader_fromfile
class	bitreader_limited

Functions
static size_t	extract_bit (const t_uint8 *p_stream, size_t p_offset)
static t_size	extract_bits (const t_uint8 *p_buffer, t_size p_base, t_size p_count)
static size_t	extract_int (const t_uint8 *p_stream, size_t p_base, size_t p_width)

Function Documentation

static size_t bitreader_helper::extract_bit ( const t_uint8 *  p_stream, size_t  p_offset  )

inlinestatic

Definition at line 3 of file bitreader_helper.h.

                                                                               {
        return (p_stream[p_offset>>3] >> (7-(p_offset&7)))&1;
    }

static t_size bitreader_helper::extract_bits ( const t_uint8 *  p_buffer, t_size  p_base, t_size  p_count  )

inlinestatic

Definition at line 118 of file bitreader_helper.h.

                                                                                         {
    return bitreader(p_buffer,p_base).read(p_count);
}

static size_t bitreader_helper::extract_int ( const t_uint8 *  p_stream, size_t  p_base, size_t  p_width  )

inlinestatic

Definition at line 7 of file bitreader_helper.h.

                                                                                            {
        size_t ret = 0;
        size_t offset = p_base;
        for(size_t bit=0;bit<p_width;bit++) {
            ret <<= 1;
            ret |= extract_bit(p_stream,offset++);
        }
        return ret;
    }