grk::t1::ojph::local::dec_mel_st Struct Reference

MEL state structure for reading and decoding the MEL bitstream. More...

Public Member Functions
	dec_mel_st ()
	dec_mel_st ()
	dec_mel_st ()

Public Attributes
ui8 *	data
	the address of data (or bitstream)
ui64	tmp
	temporary buffer for read data
int	bits
	number of bits stored in tmp
int	size
	number of bytes in MEL code
bool	unstuff
	true if the next bit needs to be unstuffed
int	k
	state of MEL decoder
int	num_runs
	number of decoded runs left in runs (maximum 8)
ui64	runs
	runs of decoded MEL codewords (7 bits/run)

Detailed Description

MEL state structure for reading and decoding the MEL bitstream.

A number of events is decoded from the MEL bitstream ahead of time and stored in run/num_runs. Each run represents the number of zero events before a one event.

Constructor & Destructor Documentation

dec_mel_st() [1/3]

grk::t1::ojph::local::dec_mel_st::dec_mel_st ( )

inline

References bits, data, k, num_runs, runs, size, tmp, and unstuff.

dec_mel_st() [2/3]

grk::t1::ojph::local::dec_mel_st::dec_mel_st ( )

inline

References bits, data, k, num_runs, runs, size, tmp, and unstuff.

dec_mel_st() [3/3]

grk::t1::ojph::local::dec_mel_st::dec_mel_st ( )

inline

References bits, data, k, num_runs, runs, size, tmp, and unstuff.

Member Data Documentation

bits

int grk::t1::ojph::local::dec_mel_st::bits

number of bits stored in tmp

Referenced by dec_mel_st(), grk::t1::ojph::local::mel_decode(), grk::t1::ojph::local::mel_init(), and grk::t1::ojph::local::mel_read().

data

ui8 * grk::t1::ojph::local::dec_mel_st::data

the address of data (or bitstream)

Referenced by dec_mel_st(), grk::t1::ojph::local::mel_init(), and grk::t1::ojph::local::mel_read().

k

int grk::t1::ojph::local::dec_mel_st::k

state of MEL decoder

Referenced by dec_mel_st(), grk::t1::ojph::local::mel_decode(), and grk::t1::ojph::local::mel_init().

num_runs

int grk::t1::ojph::local::dec_mel_st::num_runs

number of decoded runs left in runs (maximum 8)

Referenced by dec_mel_st(), grk::t1::ojph::local::mel_decode(), grk::t1::ojph::local::mel_get_run(), and grk::t1::ojph::local::mel_init().

runs

ui64 grk::t1::ojph::local::dec_mel_st::runs

runs of decoded MEL codewords (7 bits/run)

Referenced by dec_mel_st(), grk::t1::ojph::local::mel_decode(), grk::t1::ojph::local::mel_get_run(), and grk::t1::ojph::local::mel_init().

size

int grk::t1::ojph::local::dec_mel_st::size

number of bytes in MEL code

Referenced by dec_mel_st(), grk::t1::ojph::local::mel_init(), and grk::t1::ojph::local::mel_read().

tmp

ui64 grk::t1::ojph::local::dec_mel_st::tmp

temporary buffer for read data

Referenced by dec_mel_st(), grk::t1::ojph::local::mel_decode(), grk::t1::ojph::local::mel_init(), and grk::t1::ojph::local::mel_read().

unstuff

bool grk::t1::ojph::local::dec_mel_st::unstuff

true if the next bit needs to be unstuffed

Referenced by dec_mel_st(), grk::t1::ojph::local::mel_init(), and grk::t1::ojph::local::mel_read().

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The documentation for this struct was generated from the following files:

• ojph_block_decoder32.cpp
• ojph_block_decoder64.cpp
• ojph_block_decoder_wasm.cpp