OpenJPEG  2.3.0
bio.h
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1 /*
2  * The copyright in this software is being made available under the 2-clauses
3  * BSD License, included below. This software may be subject to other third
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5  * are granted under this license.
6  *
7  * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
8  * Copyright (c) 2002-2014, Professor Benoit Macq
9  * Copyright (c) 2001-2003, David Janssens
10  * Copyright (c) 2002-2003, Yannick Verschueren
11  * Copyright (c) 2003-2007, Francois-Olivier Devaux
12  * Copyright (c) 2003-2014, Antonin Descampe
13  * Copyright (c) 2005, Herve Drolon, FreeImage Team
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17  * modification, are permitted provided that the following conditions
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37 
38 #ifndef OPJ_BIO_H
39 #define OPJ_BIO_H
40 
41 #include <stddef.h> /* ptrdiff_t */
42 
52 
56 typedef struct opj_bio {
67 } opj_bio_t;
68 
71 /* ----------------------------------------------------------------------- */
81 void opj_bio_destroy(opj_bio_t *bio);
87 ptrdiff_t opj_bio_numbytes(opj_bio_t *bio);
94 void opj_bio_init_enc(opj_bio_t *bio, OPJ_BYTE *bp, OPJ_UINT32 len);
101 void opj_bio_init_dec(opj_bio_t *bio, OPJ_BYTE *bp, OPJ_UINT32 len);
128 /* ----------------------------------------------------------------------- */
132 
133 #endif /* OPJ_BIO_H */
134 
int OPJ_BOOL
Definition: openjpeg.h:110
unsigned char OPJ_BYTE
Definition: openjpeg.h:117
opj_bio_t * opj_bio_create(void)
Create a new BIO handle.
Definition: bio.c:129
OPJ_UINT32 ct
coder : number of bits free to write.
Definition: bio.h:66
void opj_bio_destroy(opj_bio_t *bio)
Destroy a previously created BIO handle.
Definition: bio.c:135
Individual bit input-output stream (BIO)
Definition: bio.h:56
struct opj_bio opj_bio_t
Individual bit input-output stream (BIO)
void opj_bio_init_dec(opj_bio_t *bio, OPJ_BYTE *bp, OPJ_UINT32 len)
Init decoder.
Definition: bio.c:156
OPJ_BOOL opj_bio_flush(opj_bio_t *bio)
Flush bits.
Definition: bio.c:195
OPJ_UINT32 opj_bio_read(opj_bio_t *bio, OPJ_UINT32 n)
Read bits.
Definition: bio.c:175
OPJ_BYTE * end
pointer to the end of the buffer
Definition: bio.h:60
void opj_bio_init_enc(opj_bio_t *bio, OPJ_BYTE *bp, OPJ_UINT32 len)
Init encoder.
Definition: bio.c:147
ptrdiff_t opj_bio_numbytes(opj_bio_t *bio)
Number of bytes written.
Definition: bio.c:142
OPJ_BYTE * start
pointer to the start of the buffer
Definition: bio.h:58
uint32_t OPJ_UINT32
Definition: openjpeg.h:126
void opj_bio_write(opj_bio_t *bio, OPJ_UINT32 v, OPJ_UINT32 n)
Write bits.
Definition: bio.c:165
OPJ_UINT32 buf
temporary place where each byte is read or written
Definition: bio.h:64
OPJ_BYTE * bp
pointer to the present position in the buffer
Definition: bio.h:62
OPJ_BOOL opj_bio_inalign(opj_bio_t *bio)
Passes the ending bits (coming from flushing)
Definition: bio.c:208