59 #define MQC_NUMCTXS 19
74 unsigned char *buffer;
122 #define mqc_setcurctx(mqc, ctxno) (mqc)->curctx = &(mqc)->ctxs[(int)(ctxno)]
void mqc_flush(opj_mqc_t *mqc)
Flush the encoder, so that all remaining data is written.
Definition: mqc.c:398
void mqc_encode(opj_mqc_t *mqc, int d)
Encode a symbol using the MQ-coder.
Definition: mqc.c:390
unsigned char * start
Definition: mqc.h:69
opj_mqc_state_t ** curctx
Definition: mqc.h:72
#define MQC_NUMCTXS
Definition: mqc.h:59
void mqc_init_dec(opj_mqc_t *mqc, unsigned char *bp, int len)
Initialize the decoder.
Definition: mqc.c:511
unsigned int ct
Definition: mqc.h:67
void mqc_destroy(opj_mqc_t *mqc)
Destroy a previously created MQC handle.
Definition: mqc.c:363
opj_mqc_state_t * ctxs[MQC_NUMCTXS]
Definition: mqc.h:71
This struct defines the state of a context.
Definition: mqc.h:48
void mqc_restart_init_enc(opj_mqc_t *mqc)
RESTART mode switch (TERMALL) reinitialisation.
Definition: mqc.c:475
unsigned int c
Definition: mqc.h:65
void mqc_setstate(opj_mqc_t *mqc, int ctxno, int msb, int prob)
Set the state of a particular context.
Definition: mqc.c:588
struct opj_mqc_state * nmps
next state if the next encoded symbol is the MPS
Definition: mqc.h:54
unsigned int qeval
the probability of the Least Probable Symbol (0.75->0x8000, 1.5->0xffff)
Definition: mqc.h:50
void mqc_bypass_enc(opj_mqc_t *mqc, int d)
BYPASS mode switch, coding operation.
Definition: mqc.c:418
struct opj_mqc opj_mqc_t
MQ coder.
int mps
the Most Probable Symbol (0 or 1)
Definition: mqc.h:52
int mqc_numbytes(opj_mqc_t *mqc)
Return the number of bytes written/read since initialisation.
Definition: mqc.c:374
unsigned int a
Definition: mqc.h:66
void mqc_erterm_enc(opj_mqc_t *mqc)
ERTERM mode switch (PTERM)
Definition: mqc.c:487
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 ...
Definition: mqc.c:581
unsigned char * bp
Definition: mqc.h:68
struct opj_mqc_state opj_mqc_state_t
This struct defines the state of a context.
void mqc_init_enc(opj_mqc_t *mqc, unsigned char *bp)
Initialize the encoder.
Definition: mqc.c:378
void mqc_segmark_enc(opj_mqc_t *mqc)
SEGMARK mode switch (SEGSYM)
Definition: mqc.c:502
struct opj_mqc_state * nlps
next state if the next encoded symbol is the LPS
Definition: mqc.h:56
int mqc_bypass_flush_enc(opj_mqc_t *mqc)
BYPASS mode switch, flush operation.
Definition: mqc.c:432
unsigned char * end
Definition: mqc.h:70
MQ coder.
Definition: mqc.h:64
void mqc_reset_enc(opj_mqc_t *mqc)
RESET mode switch.
Definition: mqc.c:452
int mqc_restart_enc(opj_mqc_t *mqc)
RESTART mode switch (TERMALL)
Definition: mqc.c:459
opj_mqc_t * mqc_create(void)
Create a new MQC handle.
Definition: mqc.c:355
void mqc_bypass_init_enc(opj_mqc_t *mqc)
BYPASS mode switch, initialization operation.
Definition: mqc.c:410
int mqc_decode(opj_mqc_t *const mqc)
Decode a symbol.
Definition: mqc.c:562