#include "opj_includes.h"
#include <assert.h>
Defines | |
#define | BYPASS_CT_INIT 0xDEADBEEF |
Functions | |
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_get_extra_bytes (opj_mqc_t *mqc, OPJ_BOOL erterm) |
Return number of extra bytes to add to opj_mqc_numbytes() for the² size of a non-terminating BYPASS pass. | |
void | opj_mqc_bypass_flush_enc (opj_mqc_t *mqc, OPJ_BOOL erterm) |
BYPASS mode switch, flush operation. | |
void | opj_mqc_reset_enc (opj_mqc_t *mqc) |
RESET mode switch. | |
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). | |
static void | opj_mqc_init_dec_common (opj_mqc_t *mqc, OPJ_BYTE *bp, OPJ_UINT32 len, OPJ_UINT32 extra_writable_bytes) |
void | opj_mqc_init_dec (opj_mqc_t *mqc, OPJ_BYTE *bp, OPJ_UINT32 len, OPJ_UINT32 extra_writable_bytes) |
Initialize the decoder for MQ decoding. | |
void | opj_mqc_raw_init_dec (opj_mqc_t *mqc, OPJ_BYTE *bp, OPJ_UINT32 len, OPJ_UINT32 extra_writable_bytes) |
Initialize the decoder for RAW decoding. | |
void | opq_mqc_finish_dec (opj_mqc_t *mqc) |
Terminate RAW/MQC decoding. | |
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. | |
Variables | |
static const opj_mqc_state_t | mqc_states [47 *2] |
#define BYPASS_CT_INIT 0xDEADBEEF |
Referenced by opj_mqc_bypass_enc(), and opj_mqc_bypass_init_enc().
static void opj_mqc_init_dec_common | ( | opj_mqc_t * | mqc, | |
OPJ_BYTE * | bp, | |||
OPJ_UINT32 | len, | |||
OPJ_UINT32 | extra_writable_bytes | |||
) | [static] |
References opj_mqc::backup, opj_mqc::bp, opj_mqc::end, OPJ_COMMON_CBLK_DATA_EXTRA, and opj_mqc::start.
Referenced by opj_mqc_init_dec(), and opj_mqc_raw_init_dec().
const opj_mqc_state_t mqc_states[47 *2] [static] |