VLC tables to decode VLC codewords to these fields: (in order)
. More...

Functions
static bool	ojph::local::vlc_init_tables ()
	Initializes vlc_tbl0 and vlc_tbl1 tables, from table0.h and table1.h. More...

Variables
static ui16	ojph::local::vlc_tbl0 [1024] = { 0 }
	vlc_tbl0 contains decoding information for initial row of quads More...

static ui16	ojph::local::vlc_tbl1 [1024] = { 0 }
	vlc_tbl1 contains decoding information for non-initial row of quads More...

static bool	ojph::local::vlc_tables_initialized = vlc_init_tables()
	Initializes VLC tables vlc_tbl0 and vlc_tbl1. More...

Detailed Description

VLC tables to decode VLC codewords to these fields: (in order)
.

cwd_len : 3bits -> the codeword length of the VLC codeword;
the VLC cwd is in the LSB of bitstream
u_off : 1bit -> u_offset, which is 1 if u value is not 0
rho : 4bits -> signficant samples within a quad
e_1 : 4bits -> EMB e_1
e_k : 4bits -> EMB e_k

The table index is 10 bits and composed of two parts:
The 7 LSBs contain a codeword which might be shorter than 7 bits;
this word is the next decoable bits in the bitstream.
The 3 MSB is the context of for the codeword.

Function Documentation

static bool ojph::local::vlc_init_tables ( )

static

Initializes vlc_tbl0 and vlc_tbl1 tables, from table0.h and table1.h.

bool ojph::local::vlc_tables_initialized = vlc_init_tables()

static

Initializes VLC tables vlc_tbl0 and vlc_tbl1.

ui16 ojph::local::vlc_tbl0[1024] = { 0 }

static

vlc_tbl0 contains decoding information for initial row of quads

ui16 ojph::local::vlc_tbl1[1024] = { 0 }

static

vlc_tbl1 contains decoding information for non-initial row of quads