| OpenJPEG 2.5.3
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Implementation of an individual bit input-output (BIO) More...
#include <stddef.h>Go to the source code of this file.
| Data Structures | |
| struct | opj_bio | 
| Individual bit input-output stream (BIO)  More... | |
| Typedefs | |
| typedef struct opj_bio | opj_bio_t | 
| Individual bit input-output stream (BIO) | |
| Functions | |
| Exported functions | |
| opj_bio_t * | opj_bio_create (void) | 
| Create a new BIO handle. | |
| void | opj_bio_destroy (opj_bio_t *bio) | 
| Destroy a previously created BIO handle. | |
| ptrdiff_t | opj_bio_numbytes (opj_bio_t *bio) | 
| Number of bytes written. | |
| void | opj_bio_init_enc (opj_bio_t *bio, OPJ_BYTE *bp, OPJ_UINT32 len) | 
| Init encoder. | |
| void | opj_bio_init_dec (opj_bio_t *bio, OPJ_BYTE *bp, OPJ_UINT32 len) | 
| Init decoder. | |
| void | opj_bio_write (opj_bio_t *bio, OPJ_UINT32 v, OPJ_UINT32 n) | 
| Write bits. | |
| void | opj_bio_putbit (opj_bio_t *bio, OPJ_UINT32 b) | 
| Write a bit. | |
| OPJ_UINT32 | opj_bio_read (opj_bio_t *bio, OPJ_UINT32 n) | 
| Read bits. | |
| OPJ_BOOL | opj_bio_flush (opj_bio_t *bio) | 
| Flush bits. | |
| OPJ_BOOL | opj_bio_inalign (opj_bio_t *bio) | 
| Passes the ending bits (coming from flushing) | |
Implementation of an individual bit input-output (BIO)
The functions in BIO.C have for goal to realize an individual bit input - output.
| opj_bio_t * opj_bio_create | ( | void | ) | 
Create a new BIO handle.
References opj_malloc().
Referenced by opj_t2_encode_packet(), and opj_t2_read_packet_header().
| void opj_bio_destroy | ( | opj_bio_t * | bio | ) | 
Destroy a previously created BIO handle.
| bio | BIO handle to destroy | 
References opj_free().
Referenced by opj_t2_encode_packet(), and opj_t2_read_packet_header().
Flush bits.
| bio | BIO handle | 
References opj_bio::ct, opj_bio_byteout(), OPJ_FALSE, and OPJ_TRUE.
Referenced by opj_t2_encode_packet().
Passes the ending bits (coming from flushing)
| bio | BIO handle | 
References opj_bio::buf, opj_bio::ct, opj_bio_bytein(), OPJ_FALSE, and OPJ_TRUE.
Referenced by opj_t2_read_packet_header().
| void opj_bio_init_dec | ( | opj_bio_t * | bio, | 
| OPJ_BYTE * | bp, | ||
| OPJ_UINT32 | len ) | 
Init decoder.
| bio | BIO handle | 
| bp | Input buffer | 
| len | Input buffer length | 
References opj_bio::bp, opj_bio::buf, opj_bio::ct, opj_bio::end, and opj_bio::start.
Referenced by opj_t2_read_packet_header().
| void opj_bio_init_enc | ( | opj_bio_t * | bio, | 
| OPJ_BYTE * | bp, | ||
| OPJ_UINT32 | len ) | 
Init encoder.
| bio | BIO handle | 
| bp | Output buffer | 
| len | Output buffer length | 
References opj_bio::bp, opj_bio::buf, opj_bio::ct, opj_bio::end, and opj_bio::start.
Referenced by opj_t2_encode_packet().
| ptrdiff_t opj_bio_numbytes | ( | opj_bio_t * | bio | ) | 
Number of bytes written.
| bio | BIO handle | 
References opj_bio::bp, and opj_bio::start.
Referenced by opj_t2_encode_packet(), and opj_t2_read_packet_header().
| void opj_bio_putbit | ( | opj_bio_t * | bio, | 
| OPJ_UINT32 | b ) | 
Write a bit.
| bio | BIO handle | 
| b | Bit to write (0 or 1) | 
References opj_bio::buf, opj_bio::ct, and opj_bio_byteout().
Referenced by opj_bio_write(), opj_t2_encode_packet(), opj_t2_putcommacode(), opj_t2_putnumpasses(), and opj_tgt_encode().
| OPJ_UINT32 opj_bio_read | ( | opj_bio_t * | bio, | 
| OPJ_UINT32 | n ) | 
Read bits.
| bio | BIO handle | 
| n | Number of bits to read | 
References opj_bio_getbit().
Referenced by opj_t2_getcommacode(), opj_t2_getnumpasses(), opj_t2_read_packet_header(), and opj_tgt_decode().
| void opj_bio_write | ( | opj_bio_t * | bio, | 
| OPJ_UINT32 | v, | ||
| OPJ_UINT32 | n ) | 
Write bits.
| bio | BIO handle | 
| v | Value of bits | 
| n | Number of bits to write | 
References opj_bio_putbit().
Referenced by opj_t2_encode_packet(), and opj_t2_putnumpasses().