OpenJPEG 2.5.4

Data Structures | Macros | Typedefs
cio.h File Reference

Implementation of a byte input-output process (CIO). More...

`#include "opj_config_private.h"`

Go to the source code of this file.

## Data Structures
struct | opj_stream_private
| Byte input-output stream. More...

## Macros
#define | opj_write_bytes opj_write_bytes_LE
#define | opj_read_bytes opj_read_bytes_LE
#define | opj_write_double opj_write_double_LE
#define | opj_read_double opj_read_double_LE
#define | opj_write_float opj_write_float_LE
#define | opj_read_float opj_read_float_LE
#define | OPJ_STREAM_STATUS_OUTPUT 0x1U
#define | OPJ_STREAM_STATUS_INPUT 0x2U
#define | OPJ_STREAM_STATUS_END 0x4U
#define | OPJ_STREAM_STATUS_ERROR 0x8U

## Typedefs
typedef struct opj_stream_private | opj_stream_private_t
| Byte input-output stream.

## Functions
Exported functions (see also openjpeg.h)
void | opj_write_bytes_BE (OPJ_BYTE *p_buffer, OPJ_UINT32 p_value, OPJ_UINT32 p_nb_bytes)
| Write some bytes to the given data buffer, this function is used in Big Endian cpus.
void | opj_read_bytes_BE (const OPJ_BYTE *p_buffer, OPJ_UINT32 *p_value, OPJ_UINT32 p_nb_bytes)
| Reads some bytes from the given data buffer, this function is used in Big Endian cpus.
void | opj_write_bytes_LE (OPJ_BYTE *p_buffer, OPJ_UINT32 p_value, OPJ_UINT32 p_nb_bytes)
| Write some bytes to the given data buffer, this function is used in Little Endian cpus.
void | opj_read_bytes_LE (const OPJ_BYTE *p_buffer, OPJ_UINT32 *p_value, OPJ_UINT32 p_nb_bytes)
| Reads some bytes from the given data buffer, this function is used in Little Endian cpus.
void | opj_write_double_LE (OPJ_BYTE *p_buffer, OPJ_FLOAT64 p_value)
| Write some bytes to the given data buffer, this function is used in Little Endian cpus.
void | opj_write_double_BE (OPJ_BYTE *p_buffer, OPJ_FLOAT64 p_value)
void | opj_read_double_LE (const OPJ_BYTE *p_buffer, OPJ_FLOAT64 *p_value)
| Reads some bytes from the given data buffer, this function is used in Little Endian cpus.
void | opj_read_double_BE (const OPJ_BYTE *p_buffer, OPJ_FLOAT64 *p_value)
| Reads some bytes from the given data buffer, this function is used in Big Endian cpus.
void | opj_read_float_LE (const OPJ_BYTE *p_buffer, OPJ_FLOAT32 *p_value)
| Reads some bytes from the given data buffer, this function is used in Little Endian cpus.
void | opj_read_float_BE (const OPJ_BYTE *p_buffer, OPJ_FLOAT32 *p_value)
| Reads some bytes from the given data buffer, this function is used in Big Endian cpus.
void | opj_write_float_LE (OPJ_BYTE *p_buffer, OPJ_FLOAT32 p_value)
| Write some bytes to the given data buffer, this function is used in Little Endian cpus.
void | opj_write_float_BE (OPJ_BYTE *p_buffer, OPJ_FLOAT32 p_value)
OPJ_SIZE_T | opj_stream_read_data (opj_stream_private_t *p_stream, OPJ_BYTE *p_buffer, OPJ_SIZE_T p_size, struct opj_event_mgr *p_event_mgr)
| Reads some bytes from the stream.
OPJ_SIZE_T | opj_stream_write_data (opj_stream_private_t *p_stream, const OPJ_BYTE *p_buffer, OPJ_SIZE_T p_size, struct opj_event_mgr *p_event_mgr)
| Writes some bytes to the stream.
OPJ_BOOL | opj_stream_flush (opj_stream_private_t *p_stream, struct opj_event_mgr *p_event_mgr)
| Writes the content of the stream buffer to the stream.
OPJ_OFF_T | opj_stream_skip (opj_stream_private_t *p_stream, OPJ_OFF_T p_size, struct opj_event_mgr *p_event_mgr)
| Skips a number of bytes from the stream.
OPJ_OFF_T | opj_stream_tell (const opj_stream_private_t *p_stream)
| Tells the byte offset on the stream (similar to ftell).
OPJ_OFF_T | opj_stream_get_number_byte_left (const opj_stream_private_t *p_stream)
| Get the number of bytes left before the end of the stream (similar to cio_numbytesleft).
OPJ_OFF_T | opj_stream_write_skip (opj_stream_private_t *p_stream, OPJ_OFF_T p_size, struct opj_event_mgr *p_event_mgr)
| Skips a number of bytes from the stream.
OPJ_OFF_T | opj_stream_read_skip (opj_stream_private_t *p_stream, OPJ_OFF_T p_size, struct opj_event_mgr *p_event_mgr)
| Skips a number of bytes from the stream.
OPJ_BOOL | opj_stream_read_seek (opj_stream_private_t *p_stream, OPJ_OFF_T p_size, struct opj_event_mgr *p_event_mgr)
| Skips a number of bytes from the stream.
OPJ_BOOL | opj_stream_write_seek (opj_stream_private_t *p_stream, OPJ_OFF_T p_size, struct opj_event_mgr *p_event_mgr)
| Skips a number of bytes from the stream.
OPJ_BOOL | opj_stream_seek (opj_stream_private_t *p_stream, OPJ_OFF_T p_size, struct opj_event_mgr *p_event_mgr)
| Seeks a number of bytes from the stream.
OPJ_BOOL | opj_stream_has_seek (const opj_stream_private_t *p_stream)
| Tells if the given stream is seekable.
OPJ_SIZE_T | opj_stream_default_read (void *p_buffer, OPJ_SIZE_T p_nb_bytes, void *p_user_data)
| FIXME DOC.
OPJ_SIZE_T | opj_stream_default_write (void *p_buffer, OPJ_SIZE_T p_nb_bytes, void *p_user_data)
| FIXME DOC.
OPJ_OFF_T | opj_stream_default_skip (OPJ_OFF_T p_nb_bytes, void *p_user_data)
| FIXME DOC.
OPJ_BOOL | opj_stream_default_seek (OPJ_OFF_T p_nb_bytes, void *p_user_data)
| FIXME DOC.

## Detailed Description

Implementation of a byte input-output process (CIO).

The functions in CIO.C have for goal to realize a byte input / output process.

## Macro Definition Documentation

## ◆ opj_read_bytes

#define opj_read_bytes opj_read_bytes_LE

Referenced by opj_check_EPHuse(), opj_j2k_decode_one_tile(), opj_j2k_decode_tile(), opj_j2k_get_sot_values(), opj_j2k_merge_ppm(), opj_j2k_need_nb_tile_parts_correction(), opj_j2k_read_cbd(), opj_j2k_read_coc(), opj_j2k_read_cod(), opj_j2k_read_header_procedure(), opj_j2k_read_int16_to_float(), opj_j2k_read_int16_to_int32(), opj_j2k_read_int32_to_float(), opj_j2k_read_int32_to_int32(), opj_j2k_read_mcc(), opj_j2k_read_mco(), opj_j2k_read_mct(), opj_j2k_read_plt(), opj_j2k_read_poc(), opj_j2k_read_ppm(), opj_j2k_read_ppt(), opj_j2k_read_qcc(), opj_j2k_read_rgn(), opj_j2k_read_siz(), opj_j2k_read_soc(), opj_j2k_read_SPCod_SPCoc(), opj_j2k_read_SQcd_SQcc(), opj_j2k_read_tile_header(), opj_j2k_read_tlm(), opj_j2k_read_unk(), opj_jp2_read_boxhdr(), opj_jp2_read_boxhdr_char(), opj_jp2_read_bpcc(), opj_jp2_read_cdef(), opj_jp2_read_cmap(), opj_jp2_read_colr(), opj_jp2_read_ftyp(), opj_jp2_read_ihdr(), opj_jp2_read_jp(), and opj_jp2_read_pclr().

## ◆ opj_read_double

#define opj_read_double opj_read_double_LE

Referenced by opj_j2k_read_float64_to_float(), and opj_j2k_read_float64_to_int32().

## ◆ opj_read_float

#define opj_read_float opj_read_float_LE

Referenced by opj_j2k_read_float32_to_float(), and opj_j2k_read_float32_to_int32().

## ◆ OPJ_STREAM_STATUS_END

#define OPJ_STREAM_STATUS_END 0x4U

Referenced by opj_stream_read_data(), opj_stream_read_seek(), and opj_stream_read_skip().

## ◆ OPJ_STREAM_STATUS_ERROR

#define OPJ_STREAM_STATUS_ERROR 0x8U

Referenced by opj_stream_flush(), opj_stream_write_data(), opj_stream_write_seek(), and opj_stream_write_skip().

## ◆ OPJ_STREAM_STATUS_INPUT

#define OPJ_STREAM_STATUS_INPUT 0x2U

Referenced by opj_stream_create(), and opj_stream_set_read_function().

## ◆ OPJ_STREAM_STATUS_OUTPUT

#define OPJ_STREAM_STATUS_OUTPUT 0x1U

Referenced by opj_stream_create(), and opj_stream_set_write_function().

## ◆ opj_write_bytes

#define opj_write_bytes opj_write_bytes_LE

Referenced by opj_j2k_update_tlm(), opj_j2k_write_all_tile_parts(), opj_j2k_write_cbd(), opj_j2k_write_coc_in_memory(), opj_j2k_write_cod(), opj_j2k_write_com(), opj_j2k_write_eoc(), opj_j2k_write_first_tile_part(), opj_j2k_write_float_to_int16(), opj_j2k_write_float_to_int32(), opj_j2k_write_mcc_record(), opj_j2k_write_mco(), opj_j2k_write_mct_record(), opj_j2k_write_plt_in_memory(), opj_j2k_write_poc_in_memory(), opj_j2k_write_qcc_in_memory(), opj_j2k_write_qcd(), opj_j2k_write_rgn(), opj_j2k_write_siz(), opj_j2k_write_soc(), opj_j2k_write_sod(), opj_j2k_write_sot(), opj_j2k_write_SPCod_SPCoc(), opj_j2k_write_SQcd_SQcc(), opj_j2k_write_tlm(), opj_jp2_write_bpcc(), opj_jp2_write_cdef(), opj_jp2_write_colr(), opj_jp2_write_ftyp(), opj_jp2_write_ihdr(), opj_jp2_write_jp(), opj_jp2_write_jp2c(), opj_jp2_write_jp2h(), opj_write_cidx(), opj_write_cptr(), opj_write_mainmhix(), opj_write_manf(), opj_write_phix(), opj_write_phixfaix(), opj_write_ppix(), opj_write_ppixfaix(), opj_write_thix(), opj_write_tilemhix(), opj_write_tpix(), and opj_write_tpixfaix().

## ◆ opj_write_double

#define opj_write_double opj_write_double_LE

Referenced by opj_j2k_write_float_to_float64().

## ◆ opj_write_float

#define opj_write_float opj_write_float_LE

Referenced by opj_j2k_write_float_to_float().

## Typedef Documentation

## ◆ opj_stream_private_t

typedef struct opj_stream_private opj_stream_private_t

Byte input-output stream.

## Function Documentation

## ◆ opj_read_bytes_BE()

void opj_read_bytes_BE | ( | const OPJ_BYTE * | p_buffer,
|  | OPJ_UINT32 * | p_value,
|  | OPJ_UINT32 | p_nb_bytes )

Reads some bytes from the given data buffer, this function is used in Big Endian cpus.

Parameters

  p_buffer | pointer the data buffer to read data from.
  p_value | pointer to the value that will store the data.
  p_nb_bytes | the nb bytes to read.

Returns
  the number of bytes read or -1 if an error occurred.

## ◆ opj_read_bytes_LE()

void opj_read_bytes_LE | ( | const OPJ_BYTE * | p_buffer,
|  | OPJ_UINT32 * | p_value,
|  | OPJ_UINT32 | p_nb_bytes )

Reads some bytes from the given data buffer, this function is used in Little Endian cpus.

Parameters

  p_buffer | pointer the data buffer to read data from.
  p_value | pointer to the value that will store the data.
  p_nb_bytes | the nb bytes to read.

Returns
  the number of bytes read or -1 if an error occurred.

## ◆ opj_read_double_BE()

void opj_read_double_BE | ( | const OPJ_BYTE * | p_buffer,
|  | OPJ_FLOAT64 * | p_value )

Reads some bytes from the given data buffer, this function is used in Big Endian cpus.

Parameters

  p_buffer | pointer the data buffer to read data from.
  p_value | pointer to the value that will store the data.

## ◆ opj_read_double_LE()

void opj_read_double_LE | ( | const OPJ_BYTE * | p_buffer,
|  | OPJ_FLOAT64 * | p_value )

Reads some bytes from the given data buffer, this function is used in Little Endian cpus.

Parameters

  p_buffer | pointer the data buffer to read data from.
  p_value | pointer to the value that will store the data.

## ◆ opj_read_float_BE()

void opj_read_float_BE | ( | const OPJ_BYTE * | p_buffer,
|  | OPJ_FLOAT32 * | p_value )

Reads some bytes from the given data buffer, this function is used in Big Endian cpus.

Parameters

  p_buffer | pointer the data buffer to read data from.
  p_value | pointer to the value that will store the data.

## ◆ opj_read_float_LE()

void opj_read_float_LE | ( | const OPJ_BYTE * | p_buffer,
|  | OPJ_FLOAT32 * | p_value )

Reads some bytes from the given data buffer, this function is used in Little Endian cpus.

Parameters

  p_buffer | pointer the data buffer to read data from.
  p_value | pointer to the value that will store the data.

## ◆ opj_stream_default_read()

OPJ_SIZE_T opj_stream_default_read | ( | void * | p_buffer,
|  | OPJ_SIZE_T | p_nb_bytes,
|  | void * | p_user_data )

FIXME DOC.

References OPJ_ARG_NOT_USED.

Referenced by opj_stream_create().

## ◆ opj_stream_default_seek()

OPJ_BOOL opj_stream_default_seek | ( | OPJ_OFF_T | p_nb_bytes,
|  | void * | p_user_data )

FIXME DOC.

References OPJ_ARG_NOT_USED, and OPJ_FALSE.

Referenced by opj_stream_create(), and opj_stream_has_seek().

## ◆ opj_stream_default_skip()

OPJ_OFF_T opj_stream_default_skip | ( | OPJ_OFF_T | p_nb_bytes,
|  | void * | p_user_data )

FIXME DOC.

References OPJ_ARG_NOT_USED.

Referenced by opj_stream_create().

## ◆ opj_stream_default_write()

OPJ_SIZE_T opj_stream_default_write | ( | void * | p_buffer,
|  | OPJ_SIZE_T | p_nb_bytes,
|  | void * | p_user_data )

FIXME DOC.

References OPJ_ARG_NOT_USED.

Referenced by opj_stream_create().

## ◆ opj_stream_flush()

OPJ_BOOL opj_stream_flush | ( | opj_stream_private_t * | p_stream,
|  | struct opj_event_mgr * | p_event_mgr )

Writes the content of the stream buffer to the stream.

Parameters

  p_stream | the stream to write data to.
  p_event_mgr | the user event manager to be notified of special events.

Returns
  true if the data could be flushed, false else.

References EVT_INFO, opj_stream_private::m_bytes_in_buffer, opj_stream_private::m_current_data, opj_stream_private::m_status, opj_stream_private::m_stored_data, opj_stream_private::m_user_data, opj_stream_private::m_write_fn, opj_event_msg(), OPJ_FALSE, OPJ_STREAM_STATUS_ERROR, and OPJ_TRUE.

Referenced by opj_j2k_write_eoc(), opj_stream_write_data(), opj_stream_write_seek(), and opj_stream_write_skip().

## ◆ opj_stream_get_number_byte_left()

OPJ_OFF_T opj_stream_get_number_byte_left | ( | const opj_stream_private_t * | p_stream | ) |

Get the number of bytes left before the end of the stream (similar to cio_numbytesleft).

Parameters

  p_stream | the stream to get the information from.

Returns
  Number of bytes left before the end of the stream.

References opj_stream_private::m_byte_offset, and opj_stream_private::m_user_data_length.

Referenced by opj_j2k_decode_tile(), opj_j2k_decode_tiles(), opj_j2k_read_sod(), opj_j2k_read_tile_header(), opj_jp2_read_boxhdr(), and opj_jp2_read_header_procedure().

## ◆ opj_stream_has_seek()

OPJ_BOOL opj_stream_has_seek | ( | const opj_stream_private_t * | p_stream | ) |

Tells if the given stream is seekable.

References opj_stream_private::m_seek_fn, and opj_stream_default_seek().

Referenced by opj_j2k_decode_tiles(), opj_j2k_need_nb_tile_parts_correction(), opj_j2k_read_tile_header(), opj_jp2_default_validation(), and opj_jp2_write_jp2c().

## ◆ opj_stream_read_data()

OPJ_SIZE_T opj_stream_read_data | ( | opj_stream_private_t * | p_stream,
|  | OPJ_BYTE * | p_buffer,
|  | OPJ_SIZE_T | p_size,
|  | struct opj_event_mgr * | p_event_mgr )

Reads some bytes from the stream.

Parameters

  p_stream | the stream to read data from.
  p_buffer | pointer to the data buffer that will receive the data.
  p_size | number of bytes to read.
  p_event_mgr | the user event manager to be notified of special events.

Returns
  the number of bytes read, or -1 if an error occurred or if the stream is at the end.

References EVT_INFO, opj_stream_private::m_buffer_size, opj_stream_private::m_byte_offset, opj_stream_private::m_bytes_in_buffer, opj_stream_private::m_current_data, opj_stream_private::m_read_fn, opj_stream_private::m_status, opj_stream_private::m_stored_data, opj_stream_private::m_user_data, opj_event_msg(), and OPJ_STREAM_STATUS_END.

Referenced by opj_check_EPHuse(), opj_j2k_decode_one_tile(), opj_j2k_decode_tile(), opj_j2k_need_nb_tile_parts_correction(), opj_j2k_read_header_procedure(), opj_j2k_read_soc(), opj_j2k_read_sod(), opj_j2k_read_tile_header(), opj_j2k_read_unk(), opj_jp2_read_boxhdr(), and opj_jp2_read_header_procedure().

## ◆ opj_stream_read_seek()

OPJ_BOOL opj_stream_read_seek | ( | opj_stream_private_t * | p_stream,
|  | OPJ_OFF_T | p_size,
|  | struct opj_event_mgr * | p_event_mgr )

Skips a number of bytes from the stream.

Parameters

  p_stream | the stream to skip data from.
  p_size | the number of bytes to skip.
  p_event_mgr | the user event manager to be notified of special events.

Returns
  OPJ_TRUE if success, or OPJ_FALSE if an error occurred.

References opj_stream_private::m_byte_offset, opj_stream_private::m_bytes_in_buffer, opj_stream_private::m_current_data, opj_stream_private::m_seek_fn, opj_stream_private::m_status, opj_stream_private::m_stored_data, opj_stream_private::m_user_data, OPJ_ARG_NOT_USED, OPJ_FALSE, OPJ_STREAM_STATUS_END, and OPJ_TRUE.

Referenced by opj_j2k_decode_one_tile(), opj_j2k_read_tile_header(), opj_stream_create(), and opj_stream_read_skip().

## ◆ opj_stream_read_skip()

OPJ_OFF_T opj_stream_read_skip | ( | opj_stream_private_t * | p_stream,
|  | OPJ_OFF_T | p_size,
|  | struct opj_event_mgr * | p_event_mgr )

Skips a number of bytes from the stream.

Parameters

  p_stream | the stream to skip data from.
  p_size | the number of bytes to skip.
  p_event_mgr | the user event manager to be notified of special events.

Returns
  the number of bytes skipped, or -1 if an error occurred.

References EVT_INFO, opj_stream_private::m_byte_offset, opj_stream_private::m_bytes_in_buffer, opj_stream_private::m_current_data, opj_stream_private::m_skip_fn, opj_stream_private::m_status, opj_stream_private::m_stored_data, opj_stream_private::m_user_data, opj_stream_private::m_user_data_length, opj_event_msg(), opj_stream_read_seek(), and OPJ_STREAM_STATUS_END.

Referenced by opj_stream_create().

## ◆ opj_stream_seek()

OPJ_BOOL opj_stream_seek | ( | opj_stream_private_t * | p_stream,
|  | OPJ_OFF_T | p_size,
|  | struct opj_event_mgr * | p_event_mgr )

Seeks a number of bytes from the stream.

Parameters

  p_stream | the stream to skip data from.
  p_size | the number of bytes to skip.
  p_event_mgr | the user event manager to be notified of special events.

Returns
  true if the stream is seekable.

References opj_stream_private::m_opj_seek.

Referenced by opj_check_EPHuse(), opj_j2k_decode_tiles(), opj_j2k_need_nb_tile_parts_correction(), opj_j2k_write_updated_tlm(), opj_jp2_write_jp2c(), opj_write_cidx(), opj_write_cptr(), opj_write_mainmhix(), opj_write_manf(), opj_write_phix(), opj_write_phixfaix(), opj_write_ppix(), opj_write_ppixfaix(), opj_write_thix(), opj_write_tilemhix(), opj_write_tpix(), and opj_write_tpixfaix().

## ◆ opj_stream_skip()

OPJ_OFF_T opj_stream_skip | ( | opj_stream_private_t * | p_stream,
|  | OPJ_OFF_T | p_size,
|  | struct opj_event_mgr * | p_event_mgr )

Skips a number of bytes from the stream.

Parameters

  p_stream | the stream to skip data from.
  p_size | the number of bytes to skip.
  p_event_mgr | the user event manager to be notified of special events.

Returns
  the number of bytes skipped, or -1 if an error occurred.

References opj_stream_private::m_opj_skip.

Referenced by opj_j2k_need_nb_tile_parts_correction(), opj_j2k_read_tile_header(), opj_jp2_read_header_procedure(), opj_jp2_skip_jp2c(), opj_jpip_skip_iptr(), opj_write_cidx(), opj_write_cptr(), opj_write_mainmhix(), opj_write_manf(), opj_write_phix(), opj_write_phixfaix(), opj_write_ppix(), opj_write_ppixfaix(), opj_write_thix(), opj_write_tilemhix(), opj_write_tpix(), and opj_write_tpixfaix().

## ◆ opj_stream_tell()

OPJ_OFF_T opj_stream_tell | ( | const opj_stream_private_t * | p_stream | ) |

Tells the byte offset on the stream (similar to ftell).

Parameters

  p_stream | the stream to get the information from.

Returns
  the current position o fthe stream.

References opj_stream_private::m_byte_offset.

Referenced by opj_check_EPHuse(), opj_j2k_get_end_header(), opj_j2k_need_nb_tile_parts_correction(), opj_j2k_read_header_procedure(), opj_j2k_read_soc(), opj_j2k_read_sod(), opj_j2k_read_tile_header(), opj_j2k_read_unk(), opj_j2k_update_rates(), opj_j2k_write_epc(), opj_j2k_write_tlm(), opj_j2k_write_updated_tlm(), opj_jp2_skip_jp2c(), opj_jp2_write_jp2c(), opj_jpip_skip_iptr(), opj_write_cidx(), opj_write_cptr(), opj_write_mainmhix(), opj_write_manf(), opj_write_phix(), opj_write_phixfaix(), opj_write_ppix(), opj_write_ppixfaix(), opj_write_thix(), opj_write_tilemhix(), opj_write_tpix(), and opj_write_tpixfaix().

## ◆ opj_stream_write_data()

OPJ_SIZE_T opj_stream_write_data | ( | opj_stream_private_t * | p_stream,
|  | const OPJ_BYTE * | p_buffer,
|  | OPJ_SIZE_T | p_size,
|  | struct opj_event_mgr * | p_event_mgr )

Writes some bytes to the stream.

Parameters

  p_stream | the stream to write data to.
  p_buffer | pointer to the data buffer holds the data to be writtent.
  p_size | number of bytes to write.
  p_event_mgr | the user event manager to be notified of special events.

Returns
  the number of bytes writtent, or -1 if an error occurred.

References opj_stream_private::m_buffer_size, opj_stream_private::m_byte_offset, opj_stream_private::m_bytes_in_buffer, opj_stream_private::m_current_data, opj_stream_private::m_status, opj_stream_private::m_stored_data, opj_stream_flush(), and OPJ_STREAM_STATUS_ERROR.

Referenced by opj_j2k_post_write_tile(), opj_j2k_write_cbd(), opj_j2k_write_coc(), opj_j2k_write_cod(), opj_j2k_write_com(), opj_j2k_write_eoc(), opj_j2k_write_mcc_record(), opj_j2k_write_mco(), opj_j2k_write_mct_record(), opj_j2k_write_poc(), opj_j2k_write_qcc(), opj_j2k_write_qcd(), opj_j2k_write_rgn(), opj_j2k_write_siz(), opj_j2k_write_soc(), opj_j2k_write_tlm(), opj_j2k_write_updated_tlm(), opj_jp2_write_ftyp(), opj_jp2_write_jp(), opj_jp2_write_jp2c(), opj_jp2_write_jp2h(), opj_write_cidx(), opj_write_cptr(), opj_write_mainmhix(), opj_write_manf(), opj_write_phix(), opj_write_phixfaix(), opj_write_ppix(), opj_write_ppixfaix(), opj_write_thix(), opj_write_tilemhix(), opj_write_tpix(), and opj_write_tpixfaix().

## ◆ opj_stream_write_seek()

OPJ_BOOL opj_stream_write_seek | ( | opj_stream_private_t * | p_stream,
|  | OPJ_OFF_T | p_size,
|  | struct opj_event_mgr * | p_event_mgr )

Skips a number of bytes from the stream.

Parameters

  p_stream | the stream to skip data from.
  p_size | the number of bytes to skip.
  p_event_mgr | the user event manager to be notified of special events.

Returns
  the number of bytes skipped, or -1 if an error occurred.

References opj_stream_private::m_byte_offset, opj_stream_private::m_bytes_in_buffer, opj_stream_private::m_current_data, opj_stream_private::m_seek_fn, opj_stream_private::m_status, opj_stream_private::m_stored_data, opj_stream_private::m_user_data, OPJ_FALSE, opj_stream_flush(), OPJ_STREAM_STATUS_ERROR, and OPJ_TRUE.

Referenced by opj_stream_create().

## ◆ opj_stream_write_skip()

OPJ_OFF_T opj_stream_write_skip | ( | opj_stream_private_t * | p_stream,
|  | OPJ_OFF_T | p_size,
|  | struct opj_event_mgr * | p_event_mgr )

Skips a number of bytes from the stream.

Parameters

  p_stream | the stream to skip data from.
  p_size | the number of bytes to skip.
  p_event_mgr | the user event manager to be notified of special events.

Returns
  the number of bytes skipped, or -1 if an error occurred.

References EVT_INFO, opj_stream_private::m_byte_offset, opj_stream_private::m_bytes_in_buffer, opj_stream_private::m_skip_fn, opj_stream_private::m_status, opj_stream_private::m_user_data, opj_event_msg(), opj_stream_flush(), and OPJ_STREAM_STATUS_ERROR.

Referenced by opj_stream_create().

## ◆ opj_write_bytes_BE()

void opj_write_bytes_BE | ( | OPJ_BYTE * | p_buffer,
|  | OPJ_UINT32 | p_value,
|  | OPJ_UINT32 | p_nb_bytes )

Write some bytes to the given data buffer, this function is used in Big Endian cpus.

Parameters

  p_buffer | pointer the data buffer to write data to.
  p_value | the value to write
  p_nb_bytes | the number of bytes to write

## ◆ opj_write_bytes_LE()

void opj_write_bytes_LE | ( | OPJ_BYTE * | p_buffer,
|  | OPJ_UINT32 | p_value,
|  | OPJ_UINT32 | p_nb_bytes )

Write some bytes to the given data buffer, this function is used in Little Endian cpus.

Parameters

  p_buffer | pointer the data buffer to write data to.
  p_value | the value to write
  p_nb_bytes | the number of bytes to write

Returns
  the number of bytes written or -1 if an error occurred

## ◆ opj_write_double_BE()

void opj_write_double_BE | ( | OPJ_BYTE * | p_buffer,
|  | OPJ_FLOAT64 | p_value )

## ◆ opj_write_double_LE()

void opj_write_double_LE | ( | OPJ_BYTE * | p_buffer,
|  | OPJ_FLOAT64 | p_value )

Write some bytes to the given data buffer, this function is used in Little Endian cpus.

Parameters

  p_buffer | pointer the data buffer to write data to.
  p_value | the value to write

## ◆ opj_write_float_BE()

void opj_write_float_BE | ( | OPJ_BYTE * | p_buffer,
|  | OPJ_FLOAT32 | p_value )

## ◆ opj_write_float_LE()

void opj_write_float_LE | ( | OPJ_BYTE * | p_buffer,
|  | OPJ_FLOAT32 | p_value )

Write some bytes to the given data buffer, this function is used in Little Endian cpus.

Parameters

  p_buffer | pointer the data buffer to write data to.
  p_value | the value to write