OpenJPEG
1.5.1
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Implementation of an MQ-Coder (MQC) More...
Go to the source code of this file.
Data Structures | |
struct | opj_mqc_state |
This struct defines the state of a context. More... | |
struct | opj_mqc |
MQ coder. More... | |
Macros | |
#define | MQC_NUMCTXS 19 |
Typedefs | |
typedef struct opj_mqc_state | opj_mqc_state_t |
This struct defines the state of a context. More... | |
typedef struct opj_mqc | opj_mqc_t |
MQ coder. More... | |
Exported functions | |
#define | mqc_setcurctx(mqc, ctxno) (mqc)->curctx = &(mqc)->ctxs[(int)(ctxno)] |
Set the current context used for coding/decoding. More... | |
opj_mqc_t * | mqc_create (void) |
Create a new MQC handle. More... | |
void | mqc_destroy (opj_mqc_t *mqc) |
Destroy a previously created MQC handle. More... | |
int | mqc_numbytes (opj_mqc_t *mqc) |
Return the number of bytes written/read since initialisation. More... | |
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) More... | |
void | mqc_setstate (opj_mqc_t *mqc, int ctxno, int msb, int prob) |
Set the state of a particular context. More... | |
void | mqc_init_enc (opj_mqc_t *mqc, unsigned char *bp) |
Initialize the encoder. More... | |
void | mqc_encode (opj_mqc_t *mqc, int d) |
Encode a symbol using the MQ-coder. More... | |
void | mqc_flush (opj_mqc_t *mqc) |
Flush the encoder, so that all remaining data is written. More... | |
void | mqc_bypass_init_enc (opj_mqc_t *mqc) |
BYPASS mode switch, initialization operation. More... | |
void | mqc_bypass_enc (opj_mqc_t *mqc, int d) |
BYPASS mode switch, coding operation. More... | |
int | mqc_bypass_flush_enc (opj_mqc_t *mqc) |
BYPASS mode switch, flush operation. More... | |
void | mqc_reset_enc (opj_mqc_t *mqc) |
RESET mode switch. More... | |
int | mqc_restart_enc (opj_mqc_t *mqc) |
RESTART mode switch (TERMALL) More... | |
void | mqc_restart_init_enc (opj_mqc_t *mqc) |
RESTART mode switch (TERMALL) reinitialisation. More... | |
void | mqc_erterm_enc (opj_mqc_t *mqc) |
ERTERM mode switch (PTERM) More... | |
void | mqc_segmark_enc (opj_mqc_t *mqc) |
SEGMARK mode switch (SEGSYM) More... | |
void | mqc_init_dec (opj_mqc_t *mqc, unsigned char *bp, int len) |
Initialize the decoder. More... | |
int | mqc_decode (opj_mqc_t *const mqc) |
Decode a symbol. More... | |
Implementation of an MQ-Coder (MQC)
The functions in MQC.C have for goal to realize the MQ-coder operations. The functions in MQC.C are used by some function in T1.C.