OpenJPEG  1.5.1
Functions | Variables
mqc.c File Reference
#include "opj_includes.h"

Functions

opj_mqc_tmqc_create (void)
 Create a new MQC handle.
void mqc_destroy (opj_mqc_t *mqc)
 Destroy a previously created MQC handle.
int mqc_numbytes (opj_mqc_t *mqc)
 Return the number of bytes written/read since initialisation.
void mqc_init_enc (opj_mqc_t *mqc, unsigned char *bp)
 Initialize the encoder.
void mqc_encode (opj_mqc_t *mqc, int d)
 Encode a symbol using the MQ-coder.
void mqc_flush (opj_mqc_t *mqc)
 Flush the encoder, so that all remaining data is written.
void mqc_bypass_init_enc (opj_mqc_t *mqc)
 BYPASS mode switch, initialization operation.
void mqc_bypass_enc (opj_mqc_t *mqc, int d)
 BYPASS mode switch, coding operation.
int mqc_bypass_flush_enc (opj_mqc_t *mqc)
 BYPASS mode switch, flush operation.
void mqc_reset_enc (opj_mqc_t *mqc)
 RESET mode switch.
int mqc_restart_enc (opj_mqc_t *mqc)
 RESTART mode switch (TERMALL)
void mqc_restart_init_enc (opj_mqc_t *mqc)
 RESTART mode switch (TERMALL) reinitialisation.
void mqc_erterm_enc (opj_mqc_t *mqc)
 ERTERM mode switch (PTERM)
void mqc_segmark_enc (opj_mqc_t *mqc)
 SEGMARK mode switch (SEGSYM)
void mqc_init_dec (opj_mqc_t *mqc, unsigned char *bp, int len)
 Initialize the decoder.
int mqc_decode (opj_mqc_t *const mqc)
 Decode a symbol.
void mqc_resetstates (opj_mqc_t *mqc)
 Reset the states of all the context of the coder/decoder (each context is set to a state where 0 and 1 are more or less equiprobable)
void mqc_setstate (opj_mqc_t *mqc, int ctxno, int msb, int prob)
 Set the state of a particular context.
Local static functions
static void mqc_byteout (opj_mqc_t *mqc)
 Output a byte, doing bit-stuffing if necessary.
static void mqc_renorme (opj_mqc_t *mqc)
 Renormalize mqc->a and mqc->c while encoding, so that mqc->a stays between 0x8000 and 0x10000.
static void mqc_codemps (opj_mqc_t *mqc)
 Encode the most probable symbol.
static void mqc_codelps (opj_mqc_t *mqc)
 Encode the most least symbol.
static void mqc_setbits (opj_mqc_t *mqc)
 Fill mqc->c with 1's for flushing.
static INLINE int mqc_mpsexchange (opj_mqc_t *const mqc)
 FIXME: documentation ???
static INLINE int mqc_lpsexchange (opj_mqc_t *const mqc)
 FIXME: documentation ???
static INLINE void mqc_bytein (opj_mqc_t *const mqc)
 Input a byte.
static INLINE void mqc_renormd (opj_mqc_t *const mqc)
 Renormalize mqc->a and mqc->c while decoding.

Variables

static opj_mqc_state_t mqc_states [47 *2]

Variable Documentation

opj_mqc_state_t mqc_states[47 *2]
static

Referenced by mqc_resetstates().