OpenJPEG
2.2.0
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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) More... | |
Local static functions | |
static void | opj_bio_putbit (opj_bio_t *bio, OPJ_UINT32 b) |
Write a bit. More... | |
static OPJ_UINT32 | opj_bio_getbit (opj_bio_t *bio) |
Read a bit. More... | |
static OPJ_BOOL | opj_bio_byteout (opj_bio_t *bio) |
Write a byte. More... | |
static OPJ_BOOL | opj_bio_bytein (opj_bio_t *bio) |
Read a byte. More... | |
Exported functions | |
opj_bio_t * | opj_bio_create (void) |
Create a new BIO handle. More... | |
void | opj_bio_destroy (opj_bio_t *bio) |
Destroy a previously created BIO handle. More... | |
ptrdiff_t | opj_bio_numbytes (opj_bio_t *bio) |
Number of bytes written. More... | |
void | opj_bio_init_enc (opj_bio_t *bio, OPJ_BYTE *bp, OPJ_UINT32 len) |
Init encoder. More... | |
void | opj_bio_init_dec (opj_bio_t *bio, OPJ_BYTE *bp, OPJ_UINT32 len) |
Init decoder. More... | |
void | opj_bio_write (opj_bio_t *bio, OPJ_UINT32 v, OPJ_UINT32 n) |
Write bits. More... | |
OPJ_UINT32 | opj_bio_read (opj_bio_t *bio, OPJ_UINT32 n) |
Read bits. More... | |
OPJ_BOOL | opj_bio_flush (opj_bio_t *bio) |
Flush bits. More... | |
OPJ_BOOL | opj_bio_inalign (opj_bio_t *bio) |
Passes the ending bits (coming from flushing) More... | |
Read a byte.
bio | BIO handle |
References opj_bio::bp, opj_bio::buf, opj_bio::ct, opj_bio::end, OPJ_FALSE, and OPJ_TRUE.
Referenced by opj_bio_getbit(), and opj_bio_inalign().
Write a byte.
bio | BIO handle |
References opj_bio::bp, opj_bio::buf, opj_bio::ct, opj_bio::end, OPJ_FALSE, and OPJ_TRUE.
Referenced by opj_bio_flush(), and opj_bio_putbit().
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().
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static |
Read a bit.
bio | BIO handle |
References opj_bio::buf, opj_bio::ct, and opj_bio_bytein().
Referenced by opj_bio_read().
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().
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static |
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_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(), opj_t2_putcommacode(), opj_t2_putnumpasses(), and opj_tgt_encode().