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OpenJPEG
2.4.0
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#include "opj_includes.h"Functions | |
| 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. More... | |
| 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. More... | |
| 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. More... | |
| 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. More... | |
| void | opj_write_double_BE (OPJ_BYTE *p_buffer, OPJ_FLOAT64 p_value) |
| 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. More... | |
| 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. More... | |
| 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. More... | |
| void | opj_write_float_BE (OPJ_BYTE *p_buffer, OPJ_FLOAT32 p_value) |
| 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. More... | |
| 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. More... | |
| 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. More... | |
| opj_stream_t *OPJ_CALLCONV | opj_stream_create (OPJ_SIZE_T p_buffer_size, OPJ_BOOL l_is_input) |
| Creates an abstract stream. More... | |
| opj_stream_t *OPJ_CALLCONV | opj_stream_default_create (OPJ_BOOL l_is_input) |
| Creates an abstract stream. More... | |
| void OPJ_CALLCONV | opj_stream_destroy (opj_stream_t *p_stream) |
| Destroys a stream created by opj_create_stream. More... | |
| void OPJ_CALLCONV | opj_stream_set_read_function (opj_stream_t *p_stream, opj_stream_read_fn p_function) |
| Sets the given function to be used as a read function. More... | |
| void OPJ_CALLCONV | opj_stream_set_seek_function (opj_stream_t *p_stream, opj_stream_seek_fn p_function) |
| Sets the given function to be used as a seek function, the stream is then seekable, using SEEK_SET behavior. More... | |
| void OPJ_CALLCONV | opj_stream_set_write_function (opj_stream_t *p_stream, opj_stream_write_fn p_function) |
| Sets the given function to be used as a write function. More... | |
| void OPJ_CALLCONV | opj_stream_set_skip_function (opj_stream_t *p_stream, opj_stream_skip_fn p_function) |
| Sets the given function to be used as a skip function. More... | |
| void OPJ_CALLCONV | opj_stream_set_user_data (opj_stream_t *p_stream, void *p_data, opj_stream_free_user_data_fn p_function) |
| Sets the given data to be used as a user data for the stream. More... | |
| void OPJ_CALLCONV | opj_stream_set_user_data_length (opj_stream_t *p_stream, OPJ_UINT64 data_length) |
| Sets the length of the user data for the stream. More... | |
| OPJ_SIZE_T | opj_stream_read_data (opj_stream_private_t *p_stream, OPJ_BYTE *p_buffer, OPJ_SIZE_T p_size, opj_event_mgr_t *p_event_mgr) |
| Reads some bytes from the stream. More... | |
| OPJ_SIZE_T | opj_stream_write_data (opj_stream_private_t *p_stream, const OPJ_BYTE *p_buffer, OPJ_SIZE_T p_size, opj_event_mgr_t *p_event_mgr) |
| Writes some bytes to the stream. More... | |
| OPJ_BOOL | opj_stream_flush (opj_stream_private_t *p_stream, opj_event_mgr_t *p_event_mgr) |
| Writes the content of the stream buffer to the stream. More... | |
| OPJ_OFF_T | opj_stream_read_skip (opj_stream_private_t *p_stream, OPJ_OFF_T p_size, opj_event_mgr_t *p_event_mgr) |
| Skips a number of bytes from the stream. More... | |
| OPJ_OFF_T | opj_stream_write_skip (opj_stream_private_t *p_stream, OPJ_OFF_T p_size, opj_event_mgr_t *p_event_mgr) |
| Skips a number of bytes from the stream. More... | |
| OPJ_OFF_T | opj_stream_tell (const opj_stream_private_t *p_stream) |
| Tells the byte offset on the stream (similar to ftell). More... | |
| 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). More... | |
| OPJ_OFF_T | opj_stream_skip (opj_stream_private_t *p_stream, OPJ_OFF_T p_size, opj_event_mgr_t *p_event_mgr) |
| Skips a number of bytes from the stream. More... | |
| OPJ_BOOL | opj_stream_read_seek (opj_stream_private_t *p_stream, OPJ_OFF_T p_size, opj_event_mgr_t *p_event_mgr) |
| Skips a number of bytes from the stream. More... | |
| OPJ_BOOL | opj_stream_write_seek (opj_stream_private_t *p_stream, OPJ_OFF_T p_size, opj_event_mgr_t *p_event_mgr) |
| Skips a number of bytes from the stream. More... | |
| 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. More... | |
| OPJ_BOOL | opj_stream_has_seek (const opj_stream_private_t *p_stream) |
| Tells if the given stream is seekable. More... | |
| OPJ_SIZE_T | opj_stream_default_read (void *p_buffer, OPJ_SIZE_T p_nb_bytes, void *p_user_data) |
| FIXME DOC. More... | |
| OPJ_SIZE_T | opj_stream_default_write (void *p_buffer, OPJ_SIZE_T p_nb_bytes, void *p_user_data) |
| FIXME DOC. More... | |
| OPJ_OFF_T | opj_stream_default_skip (OPJ_OFF_T p_nb_bytes, void *p_user_data) |
| FIXME DOC. More... | |
| OPJ_BOOL | opj_stream_default_seek (OPJ_OFF_T p_nb_bytes, void *p_user_data) |
| FIXME DOC. More... | |
| opj_stream_t* OPJ_CALLCONV opj_stream_create | ( | OPJ_SIZE_T | p_buffer_size, |
| OPJ_BOOL | p_is_input | ||
| ) |
Creates an abstract stream.
This function does nothing except allocating memory and initializing the abstract stream.
| p_buffer_size | FIXME DOC |
| p_is_input | if set to true then the stream will be an input stream, an output stream else. |
References opj_stream_private::m_buffer_size, opj_stream_private::m_current_data, opj_stream_private::m_opj_seek, opj_stream_private::m_opj_skip, opj_stream_private::m_read_fn, opj_stream_private::m_seek_fn, opj_stream_private::m_skip_fn, opj_stream_private::m_status, opj_stream_private::m_stored_data, opj_stream_private::m_write_fn, opj_calloc(), opj_free(), opj_malloc(), opj_stream_default_read(), opj_stream_default_seek(), opj_stream_default_skip(), opj_stream_default_write(), opj_stream_read_seek(), opj_stream_read_skip(), OPJ_STREAM_STATUS_INPUT, OPJ_STREAM_STATUS_OUTPUT, opj_stream_write_seek(), and opj_stream_write_skip().
Referenced by opj_stream_create_file_stream(), and opj_stream_default_create().
| opj_stream_t* OPJ_CALLCONV opj_stream_default_create | ( | OPJ_BOOL | p_is_input | ) |
Creates an abstract stream.
This function does nothing except allocating memory and initializing the abstract stream.
| p_is_input | if set to true then the stream will be an input stream, an output stream else. |
References OPJ_J2K_STREAM_CHUNK_SIZE, and opj_stream_create().
| void OPJ_CALLCONV opj_stream_destroy | ( | opj_stream_t * | p_stream | ) |
Destroys a stream created by opj_create_stream.
This function does NOT close the abstract stream. If needed the user must close its own implementation of the stream.
| p_stream | the stream to destroy. |
References opj_stream_private::m_free_user_data_fn, opj_stream_private::m_stored_data, opj_stream_private::m_user_data, and opj_free().
Referenced by j2k_to_pnm().
| void OPJ_CALLCONV opj_stream_set_read_function | ( | opj_stream_t * | p_stream, |
| opj_stream_read_fn | p_function | ||
| ) |
Sets the given function to be used as a read function.
| p_stream | the stream to modify |
| p_function | the function to use a read function. |
References opj_stream_private::m_read_fn, opj_stream_private::m_status, and OPJ_STREAM_STATUS_INPUT.
Referenced by opj_stream_create_file_stream().
| void OPJ_CALLCONV opj_stream_set_seek_function | ( | opj_stream_t * | p_stream, |
| opj_stream_seek_fn | p_function | ||
| ) |
Sets the given function to be used as a seek function, the stream is then seekable, using SEEK_SET behavior.
| p_stream | the stream to modify |
| p_function | the function to use a skip function. |
References opj_stream_private::m_seek_fn.
Referenced by opj_stream_create_file_stream().
| void OPJ_CALLCONV opj_stream_set_skip_function | ( | opj_stream_t * | p_stream, |
| opj_stream_skip_fn | p_function | ||
| ) |
Sets the given function to be used as a skip function.
| p_stream | the stream to modify |
| p_function | the function to use a skip function. |
References opj_stream_private::m_skip_fn.
Referenced by opj_stream_create_file_stream().
| void OPJ_CALLCONV opj_stream_set_user_data | ( | opj_stream_t * | p_stream, |
| void * | p_data, | ||
| opj_stream_free_user_data_fn | p_function | ||
| ) |
Sets the given data to be used as a user data for the stream.
| p_stream | the stream to modify |
| p_data | the data to set. |
| p_function | the function to free p_data when opj_stream_destroy() is called. |
References opj_stream_private::m_free_user_data_fn, and opj_stream_private::m_user_data.
Referenced by opj_stream_create_file_stream().
| void OPJ_CALLCONV opj_stream_set_user_data_length | ( | opj_stream_t * | p_stream, |
| OPJ_UINT64 | data_length | ||
| ) |
Sets the length of the user data for the stream.
| p_stream | the stream to modify |
| data_length | length of the user_data. |
References opj_stream_private::m_user_data_length.
Referenced by opj_stream_create_file_stream().
| void OPJ_CALLCONV opj_stream_set_write_function | ( | opj_stream_t * | p_stream, |
| opj_stream_write_fn | p_function | ||
| ) |
Sets the given function to be used as a write function.
| p_stream | the stream to modify |
| p_function | the function to use a write function. |
References opj_stream_private::m_status, opj_stream_private::m_write_fn, and OPJ_STREAM_STATUS_OUTPUT.
Referenced by opj_stream_create_file_stream().
1.8.11