mqc.c File Reference

#include "opj_includes.h"

Functions

opj_mqc_topj_mqc_create (void)
 Create a new MQC handle.
void opj_mqc_destroy (opj_mqc_t *mqc)
 Destroy a previously created MQC handle.
OPJ_UINT32 opj_mqc_numbytes (opj_mqc_t *mqc)
 Return the number of bytes written/read since initialisation.
void opj_mqc_init_enc (opj_mqc_t *mqc, OPJ_BYTE *bp)
 Initialize the encoder.
void opj_mqc_encode (opj_mqc_t *mqc, OPJ_UINT32 d)
 Encode a symbol using the MQ-coder.
void opj_mqc_flush (opj_mqc_t *mqc)
 Flush the encoder, so that all remaining data is written.
void opj_mqc_bypass_init_enc (opj_mqc_t *mqc)
 BYPASS mode switch, initialization operation.
void opj_mqc_bypass_enc (opj_mqc_t *mqc, OPJ_UINT32 d)
 BYPASS mode switch, coding operation.
OPJ_UINT32 opj_mqc_bypass_flush_enc (opj_mqc_t *mqc)
 BYPASS mode switch, flush operation.
void opj_mqc_reset_enc (opj_mqc_t *mqc)
 RESET mode switch.
OPJ_UINT32 opj_mqc_restart_enc (opj_mqc_t *mqc)
 RESTART mode switch (TERMALL).
void opj_mqc_restart_init_enc (opj_mqc_t *mqc)
 RESTART mode switch (TERMALL) reinitialisation.
void opj_mqc_erterm_enc (opj_mqc_t *mqc)
 ERTERM mode switch (PTERM).
void opj_mqc_segmark_enc (opj_mqc_t *mqc)
 SEGMARK mode switch (SEGSYM).
OPJ_BOOL opj_mqc_init_dec (opj_mqc_t *mqc, OPJ_BYTE *bp, OPJ_UINT32 len)
 Initialize the decoder.
OPJ_INT32 opj_mqc_decode (opj_mqc_t *const mqc)
 Decode a symbol.
void opj_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 opj_mqc_setstate (opj_mqc_t *mqc, OPJ_UINT32 ctxno, OPJ_UINT32 msb, OPJ_INT32 prob)
 Set the state of a particular context.
Local static functions
static void opj_mqc_byteout (opj_mqc_t *mqc)
 Output a byte, doing bit-stuffing if necessary.
static void opj_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 opj_mqc_codemps (opj_mqc_t *mqc)
 Encode the most probable symbol.
static void opj_mqc_codelps (opj_mqc_t *mqc)
 Encode the most least symbol.
static void opj_mqc_setbits (opj_mqc_t *mqc)
 Fill mqc->c with 1's for flushing.
static INLINE OPJ_INT32 opj_mqc_mpsexchange (opj_mqc_t *const mqc)
 FIXME DOC.
static INLINE OPJ_INT32 opj_mqc_lpsexchange (opj_mqc_t *const mqc)
 FIXME DOC.
static INLINE void opj_mqc_bytein (opj_mqc_t *const mqc)
 Input a byte.
static INLINE void opj_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]


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