/** @name Local static functions */
/*@{*/
-/**
-Read box headers
-@param cinfo Codec context info
-@param cio Input stream
-@param box
-@return Returns true if successful, returns false otherwise
-*/
-static opj_bool jp2_read_boxhdr(opj_common_ptr cinfo, opj_cio_t *cio, opj_jp2_box_t *box);
+
/*static void jp2_write_url(opj_cio_t *cio, char *Idx_file);*/
-/**
-Read the IHDR box - Image Header box
-@param jp2 JP2 handle
-@param cio Input buffer stream
-@return Returns true if successful, returns false otherwise
-*/
-static opj_bool jp2_read_ihdr(opj_jp2_t *jp2, opj_cio_t *cio);
/**
* Reads a IHDR box - Image Header box
* @param p_image_header_size the size of the image header
* @param p_manager the user event manager.
*
- * @return true if the image header is valid, fale else.
+ * @return true if the image header is valid, false else.
*/
-static opj_bool jp2_read_ihdr_v2(
- opj_jp2_v2_t *jp2,
- unsigned char * p_image_header_data,
- unsigned int p_image_header_size,
- struct opj_event_mgr * p_manager
- );
+static opj_bool opj_jp2_read_ihdr( opj_jp2_v2_t *jp2,
+ OPJ_BYTE *p_image_header_data,
+ OPJ_UINT32 p_image_header_size,
+ opj_event_mgr_t * p_manager );
+
+/**
+ * Writes the Image Header box - Image Header box.
+ *
+ * @param jp2 jpeg2000 file codec.
+ * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
+ *
+ * @return the data being copied.
+*/
+static OPJ_BYTE * opj_jp2_write_ihdr(opj_jp2_v2_t *jp2,
+ OPJ_UINT32 * p_nb_bytes_written );
-static void jp2_write_ihdr(opj_jp2_t *jp2, opj_cio_t *cio);
-static void jp2_write_bpcc(opj_jp2_t *jp2, opj_cio_t *cio);
-static opj_bool jp2_read_bpcc(opj_jp2_t *jp2, opj_cio_t *cio);
+/**
+ * Writes the Bit per Component box.
+ *
+ * @param jp2 jpeg2000 file codec.
+ * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
+ *
+ * @return the data being copied.
+*/
+static OPJ_BYTE * opj_jp2_write_bpcc( opj_jp2_v2_t *jp2,
+ OPJ_UINT32 * p_nb_bytes_written );
/**
* Reads a Bit per Component box.
*
* @return true if the bpc header is valid, fale else.
*/
-static opj_bool jp2_read_bpcc_v2(
- opj_jp2_v2_t *jp2,
- unsigned char * p_bpc_header_data,
- unsigned int p_bpc_header_size,
- struct opj_event_mgr * p_manager
- );
-
-static opj_bool jp2_read_cdef_v2( opj_jp2_v2_t * jp2,
- unsigned char * p_cdef_header_data,
- OPJ_UINT32 p_cdef_header_size,
- opj_event_mgr_t * p_manager
- );
+static opj_bool opj_jp2_read_bpcc( opj_jp2_v2_t *jp2,
+ OPJ_BYTE * p_bpc_header_data,
+ OPJ_UINT32 p_bpc_header_size,
+ opj_event_mgr_t * p_manager );
-static void jp2_write_colr(opj_jp2_t *jp2, opj_cio_t *cio);
+static opj_bool opj_jp2_read_cdef( opj_jp2_v2_t * jp2,
+ OPJ_BYTE * p_cdef_header_data,
+ OPJ_UINT32 p_cdef_header_size,
+ opj_event_mgr_t * p_manager );
/**
-Write the FTYP box - File type box
-@param jp2 JP2 handle
-@param cio Output buffer stream
+ * Writes the Colour Specification box.
+ *
+ * @param jp2 jpeg2000 file codec.
+ * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
+ *
+ * @return the data being copied.
*/
-static void jp2_write_ftyp(opj_jp2_t *jp2, opj_cio_t *cio);
+static OPJ_BYTE * opj_jp2_write_colr( opj_jp2_v2_t *jp2,
+ OPJ_UINT32 * p_nb_bytes_written );
+
/**
-Read the FTYP box - File type box
-@param jp2 JP2 handle
-@param cio Input buffer stream
-@return Returns true if successful, returns false otherwise
-*/
-static opj_bool jp2_read_ftyp(opj_jp2_t *jp2, opj_cio_t *cio);
+ * Writes a FTYP box - File type box
+ *
+ * @param cio the stream to write data to.
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_manager the user event manager.
+ *
+ * @return true if writting was successful.
+ */
+static opj_bool opj_jp2_write_ftyp( opj_jp2_v2_t *jp2,
+ opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager );
/**
* Reads a a FTYP box - File type box
*
* @return true if the FTYP box is valid.
*/
-static opj_bool jp2_read_ftyp_v2(
- opj_jp2_v2_t *jp2,
- unsigned char * p_header_data,
- unsigned int p_header_size,
- struct opj_event_mgr * p_manager
- );
+static opj_bool opj_jp2_read_ftyp( opj_jp2_v2_t *jp2,
+ OPJ_BYTE * p_header_data,
+ OPJ_UINT32 p_header_size,
+ opj_event_mgr_t * p_manager );
+
+/**
+ * Skips the Jpeg2000 Codestream Header box - JP2C Header box.
+ *
+ * @param cio the stream to write data to.
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_manager user event manager.
+ *
+ * @return true if writting was successful.
+*/
+opj_bool opj_jp2_skip_jp2c( opj_jp2_v2_t *jp2,
+ opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager );
/**
* Reads the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).
*
* @return true if the JP2 Header box was successfully reconized.
*/
-static opj_bool jp2_read_jp2h_v2(
- opj_jp2_v2_t *jp2,
- unsigned char * p_header_data,
- unsigned int p_header_size,
- struct opj_event_mgr * p_manager
- );
-
-static int jp2_write_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image, opj_codestream_info_t *cstr_info);
-static opj_bool jp2_read_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, unsigned int *j2k_codestream_length, unsigned int *j2k_codestream_offset);
-static void jp2_write_jp(opj_cio_t *cio);
-/**
-Read the JP box - JPEG 2000 signature
-@param jp2 JP2 handle
-@param cio Input buffer stream
-@return Returns true if successful, returns false otherwise
+static opj_bool opj_jp2_read_jp2h( opj_jp2_v2_t *jp2,
+ OPJ_BYTE *p_header_data,
+ OPJ_UINT32 p_header_size,
+ opj_event_mgr_t * p_manager );
+
+/**
+ * Writes the Jpeg2000 codestream Header box - JP2C Header box. This function must be called AFTER the coding has been done.
+ *
+ * @param cio the stream to write data to.
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_manager user event manager.
+ *
+ * @return true if writting was successful.
*/
-static opj_bool jp2_read_jp(opj_jp2_t *jp2, opj_cio_t *cio);
+static opj_bool opj_jp2_write_jp2c( opj_jp2_v2_t *jp2,
+ opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager );
/**
* Reads a jpeg2000 file signature box.
*
* @return true if the file signature box is valid.
*/
-static opj_bool jp2_read_jp_v2(
- opj_jp2_v2_t *jp2,
- unsigned char * p_header_data,
- unsigned int p_header_size,
- struct opj_event_mgr * p_manager
- );
+static opj_bool opj_jp2_read_jp(opj_jp2_v2_t *jp2,
+ OPJ_BYTE * p_header_data,
+ OPJ_UINT32 p_header_size,
+ opj_event_mgr_t * p_manager);
/**
-Decode the structure of a JP2 file
-@param jp2 JP2 handle
-@param cio Input buffer stream
-@param color Collector for profile, cdef and pclr data
-@return Returns true if successful, returns false otherwise
-*/
-static opj_bool jp2_read_struct(opj_jp2_t *jp2, opj_cio_t *cio,
- opj_jp2_color_t *color);
+ * Writes a jpeg2000 file signature box.
+ *
+ * @param cio the stream to write data to.
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_manager the user event manager.
+ *
+ * @return true if writting was successful.
+ */
+static opj_bool opj_jp2_write_jp( opj_jp2_v2_t *jp2,
+ opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager );
+
/**
Apply collected palette data
@param color Collector for profile, cdef and pclr data
@param color Collector for profile, cdef and pclr data
@return Returns true if successful, returns false otherwise
*/
-static opj_bool jp2_read_pclr(opj_jp2_t *jp2, opj_cio_t *cio,
- opj_jp2_box_t *box, opj_jp2_color_t *color);
-
-static opj_bool jp2_read_pclr_v2( opj_jp2_v2_t *jp2,
- unsigned char * p_pclr_header_data,
- OPJ_UINT32 p_pclr_header_size,
- opj_event_mgr_t * p_manager
- );
+static opj_bool opj_jp2_read_pclr( opj_jp2_v2_t *jp2,
+ OPJ_BYTE * p_pclr_header_data,
+ OPJ_UINT32 p_pclr_header_size,
+ opj_event_mgr_t * p_manager );
/**
Collect component mapping data
@param color Collector for profile, cdef and pclr data
@return Returns true if successful, returns false otherwise
*/
-static opj_bool jp2_read_cmap(opj_jp2_t *jp2, opj_cio_t *cio,
- opj_jp2_box_t *box, opj_jp2_color_t *color);
-
-static opj_bool jp2_read_cmap_v2( opj_jp2_v2_t * jp2,
- unsigned char * p_cmap_header_data,
- OPJ_UINT32 p_cmap_header_size,
- opj_event_mgr_t * p_manager
- );
-
-/**
-Collect colour specification data
-@param jp2 JP2 handle
-@param cio Input buffer stream
-@param box
-@param color Collector for profile, cdef and pclr data
-@return Returns true if successful, returns false otherwise
-*/
-static opj_bool jp2_read_colr(opj_jp2_t *jp2, opj_cio_t *cio,
- opj_jp2_box_t *box, opj_jp2_color_t *color);
+static opj_bool opj_jp2_read_cmap( opj_jp2_v2_t * jp2,
+ OPJ_BYTE * p_cmap_header_data,
+ OPJ_UINT32 p_cmap_header_size,
+ opj_event_mgr_t * p_manager );
/**
* Reads the Color Specification box.
*
* @return true if the bpc header is valid, fale else.
*/
-static opj_bool jp2_read_colr_v2(
- opj_jp2_v2_t *jp2,
- unsigned char * p_colr_header_data,
- OPJ_UINT32 p_colr_header_size,
- struct opj_event_mgr * p_manager
- );
+static opj_bool opj_jp2_read_colr( opj_jp2_v2_t *jp2,
+ OPJ_BYTE * p_colr_header_data,
+ OPJ_UINT32 p_colr_header_size,
+ opj_event_mgr_t * p_manager );
/**
Write file Index (superbox)
/*@}*/
+/**
+ * Sets up the procedures to do on writting header after the codestream.
+ * Developpers wanting to extend the library can add their own writting procedures.
+ */
+static void opj_jp2_setup_end_header_writting (opj_jp2_v2_t *jp2);
+
+
/**
* Sets up the procedures to do on reading header after the codestream.
* Developpers wanting to extend the library can add their own writting procedures.
*/
-static void jp2_setup_end_header_reading (opj_jp2_v2_t *jp2);
+static void opj_jp2_setup_end_header_reading (opj_jp2_v2_t *jp2);
/**
* Reads a jpeg2000 file header structure.
*
* @return true if the box is valid.
*/
-opj_bool jp2_read_header_procedure(
- opj_jp2_v2_t *jp2,
- struct opj_stream_private *cio,
- struct opj_event_mgr * p_manager
- );
+static opj_bool opj_jp2_read_header_procedure( opj_jp2_v2_t *jp2,
+ opj_stream_private_t *stream,
+ opj_event_mgr_t * p_manager );
/**
* Excutes the given procedures on the given codec.
*
* @param p_procedure_list the list of procedures to execute
* @param jp2 the jpeg2000 file codec to execute the procedures on.
- * @param cio the stream to execute the procedures on.
+ * @param stream the stream to execute the procedures on.
* @param p_manager the user manager.
*
* @return true if all the procedures were successfully executed.
*/
-static opj_bool jp2_exec (
- opj_jp2_v2_t * jp2,
- struct opj_procedure_list * p_procedure_list,
- struct opj_stream_private *cio,
- struct opj_event_mgr * p_manager
- );
+static opj_bool opj_jp2_exec ( opj_jp2_v2_t * jp2,
+ opj_procedure_list_t * p_procedure_list,
+ opj_stream_private_t *stream,
+ opj_event_mgr_t * p_manager );
/**
* Reads a box header. The box is the way data is packed inside a jpeg2000 file structure.
*
* @return true if the box is reconized, false otherwise
*/
-static opj_bool jp2_read_boxhdr_v2(
- opj_jp2_box_t *box,
- OPJ_UINT32 * p_number_bytes_read,
- struct opj_stream_private *cio,
- struct opj_event_mgr * p_manager
- );
+static opj_bool opj_jp2_read_boxhdr(opj_jp2_box_t *box,
+ OPJ_UINT32 * p_number_bytes_read,
+ opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager);
/**
- * Finds the execution function related to the given box id.
+ * Sets up the validation ,i.e. adds the procedures to lauch to make sure the codec parameters
+ * are valid. Developpers wanting to extend the library can add their own validation procedures.
+ */
+static void opj_jp2_setup_encoding_validation (opj_jp2_v2_t *jp2);
+
+
+/**
+ * Sets up the procedures to do on writting header. Developpers wanting to extend the library can add their own writting procedures.
+ */
+static void opj_jp2_setup_header_writting (opj_jp2_v2_t *jp2);
+
+/**
+ * The default validation procedure without any extension.
+ *
+ * @param jp2 the jpeg2000 codec to validate.
+ * @param cio the input stream to validate.
+ * @param p_manager the user event manager.
+ *
+ * @return true if the parameters are correct.
+ */
+opj_bool opj_jp2_default_validation ( opj_jp2_v2_t * jp2,
+ opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager );
+
+/**
+ * Finds the image execution function related to the given box id.
*
* @param p_id the id of the handler to fetch.
*
* @return the given handler or NULL if it could not be found.
*/
-static const opj_jp2_header_handler_t * jp2_find_handler (int p_id );
+static const opj_jp2_header_handler_t * opj_jp2_img_find_handler (OPJ_UINT32 p_id);
/**
- * Finds the image execution function related to the given box id.
+ * Finds the execution function related to the given box id.
*
* @param p_id the id of the handler to fetch.
*
* @return the given handler or NULL if it could not be found.
*/
-static const opj_jp2_header_handler_t * jp2_img_find_handler (int p_id);
+static const opj_jp2_header_handler_t * opj_jp2_find_handler (OPJ_UINT32 p_id );
const opj_jp2_header_handler_t jp2_header [] =
{
- {JP2_JP,jp2_read_jp_v2},
- {JP2_FTYP,jp2_read_ftyp_v2},
- {JP2_JP2H,jp2_read_jp2h_v2}
+ {JP2_JP,opj_jp2_read_jp},
+ {JP2_FTYP,opj_jp2_read_ftyp},
+ {JP2_JP2H,opj_jp2_read_jp2h}
};
const opj_jp2_header_handler_t jp2_img_header [] =
{
- {JP2_IHDR,jp2_read_ihdr_v2},
- {JP2_COLR,jp2_read_colr_v2},
- {JP2_BPCC,jp2_read_bpcc_v2},
- {JP2_PCLR,jp2_read_pclr_v2},
- {JP2_CMAP,jp2_read_cmap_v2},
- {JP2_CDEF,jp2_read_cdef_v2}
+ {JP2_IHDR,opj_jp2_read_ihdr},
+ {JP2_COLR,opj_jp2_read_colr},
+ {JP2_BPCC,opj_jp2_read_bpcc},
+ {JP2_PCLR,opj_jp2_read_pclr},
+ {JP2_CMAP,opj_jp2_read_cmap},
+ {JP2_CDEF,opj_jp2_read_cdef}
};
*
* @return true if the box is reconized, false otherwise
*/
-static opj_bool jp2_read_boxhdr_char(
- opj_jp2_box_t *box,
- OPJ_BYTE * p_data,
- OPJ_UINT32 * p_number_bytes_read,
- OPJ_UINT32 p_box_max_size,
- struct opj_event_mgr * p_manager
- );
+static opj_bool opj_jp2_read_boxhdr_char( opj_jp2_box_t *box,
+ OPJ_BYTE * p_data,
+ OPJ_UINT32 * p_number_bytes_read,
+ OPJ_UINT32 p_box_max_size,
+ opj_event_mgr_t * p_manager );
/**
* Sets up the validation ,i.e. adds the procedures to lauch to make sure the codec parameters
* are valid. Developpers wanting to extend the library can add their own validation procedures.
*/
-static void jp2_setup_decoding_validation (opj_jp2_v2_t *jp2);
+static void opj_jp2_setup_decoding_validation (opj_jp2_v2_t *jp2);
/**
* Sets up the procedures to do on reading header.
* Developpers wanting to extend the library can add their own writting procedures.
*/
-static void jp2_setup_header_reading (opj_jp2_v2_t *jp2);
+static void opj_jp2_setup_header_reading (opj_jp2_v2_t *jp2);
/* ----------------------------------------------------------------------- */
-static opj_bool jp2_read_boxhdr(opj_common_ptr cinfo, opj_cio_t *cio, opj_jp2_box_t *box) {
- box->init_pos = cio_tell(cio);
- box->length = cio_read(cio, 4);
- box->type = cio_read(cio, 4);
- if (box->length == 1) {
- if (cio_read(cio, 4) != 0) {
- opj_event_msg(cinfo, EVT_ERROR, "Cannot handle box sizes higher than 2^32\n");
- return OPJ_FALSE;
- }
- box->length = cio_read(cio, 4);
- if (box->length == 0)
- box->length = cio_numbytesleft(cio) + 12;
- }
- else if (box->length == 0) {
- box->length = cio_numbytesleft(cio) + 8;
- }
-
- return OPJ_TRUE;
-}
-
/**
* Reads a box header. The box is the way data is packed inside a jpeg2000 file structure.
*
*
* @return true if the box is reconized, false otherwise
*/
-opj_bool jp2_read_boxhdr_v2(opj_jp2_box_t *box, OPJ_UINT32 * p_number_bytes_read, opj_stream_private_t *cio, opj_event_mgr_t * p_manager)
+ opj_bool opj_jp2_read_boxhdr(opj_jp2_box_t *box,
+ OPJ_UINT32 * p_number_bytes_read,
+ opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager
+ )
{
/* read header from file */
unsigned char l_data_header [8];
- // preconditions
+ /* preconditions */
assert(cio != 00);
assert(box != 00);
assert(p_number_bytes_read != 00);
opj_read_bytes(l_data_header,&(box->length), 4);
opj_read_bytes(l_data_header+4,&(box->type), 4);
- // do we have a "special very large box ?"
- // read then the XLBox
+ /* do we have a "special very large box ?" */
+ /* read then the XLBox */
if (box->length == 1) {
OPJ_UINT32 l_xl_part_size;
}
#endif
-static opj_bool jp2_read_ihdr(opj_jp2_t *jp2, opj_cio_t *cio) {
- opj_jp2_box_t box;
-
- opj_common_ptr cinfo = jp2->cinfo;
-
- jp2_read_boxhdr(cinfo, cio, &box);
- if (JP2_IHDR != box.type) {
- opj_event_msg(cinfo, EVT_ERROR, "Expected IHDR Marker\n");
- return OPJ_FALSE;
- }
-
- jp2->h = cio_read(cio, 4); /* HEIGHT */
- jp2->w = cio_read(cio, 4); /* WIDTH */
- jp2->numcomps = cio_read(cio, 2); /* NC */
- jp2->comps = (opj_jp2_comps_t*) opj_malloc(jp2->numcomps * sizeof(opj_jp2_comps_t));
-
- jp2->bpc = cio_read(cio, 1); /* BPC */
-
- jp2->C = cio_read(cio, 1); /* C */
- jp2->UnkC = cio_read(cio, 1); /* UnkC */
- jp2->IPR = cio_read(cio, 1); /* IPR */
-
- if (cio_tell(cio) - box.init_pos != box.length) {
- opj_event_msg(cinfo, EVT_ERROR, "Error with IHDR Box\n");
- return OPJ_FALSE;
- }
-
- return OPJ_TRUE;
-}
/**
* Reads a IHDR box - Image Header box
*
- * @param p_image_header_data pointer to actual data (already read from file)
* @param jp2 the jpeg2000 file codec.
+ * @param p_image_header_data pointer to actual data (already read from file)
* @param p_image_header_size the size of the image header
- * @param p_image_header_max_size maximum size of the header, any size bigger than this value should result the function to output false.
* @param p_manager the user event manager.
*
* @return true if the image header is valid, fale else.
*/
-opj_bool jp2_read_ihdr_v2(
- opj_jp2_v2_t *jp2,
- unsigned char * p_image_header_data,
- unsigned int p_image_header_size,
- opj_event_mgr_t * p_manager
- )
+opj_bool opj_jp2_read_ihdr( opj_jp2_v2_t *jp2,
+ OPJ_BYTE *p_image_header_data,
+ OPJ_UINT32 p_image_header_size,
+ opj_event_mgr_t * p_manager )
{
- // preconditions
+ /* preconditions */
assert(p_image_header_data != 00);
assert(jp2 != 00);
assert(p_manager != 00);
p_image_header_data += 4;
opj_read_bytes(p_image_header_data,&(jp2->w),4); /* WIDTH */
p_image_header_data += 4;
- opj_read_bytes(p_image_header_data,&(jp2->numcomps),2); /* NC */
+ opj_read_bytes(p_image_header_data,&(jp2->numcomps),2); /* NC */
p_image_header_data += 2;
/* allocate memory for components */
opj_read_bytes(p_image_header_data,&(jp2->bpc),1); /* BPC */
++ p_image_header_data;
- // if equal to 0 then need a BPC box (cf. chapter about image header box of the norm)
+ /* if equal to 0 then need a BPC box (cf. chapter about image header box of the norm) */
/*if (jp2->bpc == 0){
- // indicate with a flag that we will wait a BPC box
+ indicate with a flag that we will wait a BPC box
}*/
opj_read_bytes(p_image_header_data,&(jp2->C),1); /* C */
++ p_image_header_data;
- // Should be equal to 7 cf. chapter about image header box of the norm
+ /* Should be equal to 7 cf. chapter about image header box of the norm */
if (jp2->C != 7){
opj_event_msg_v2(p_manager, EVT_INFO, "JP2 IHDR box: compression type indicate that the file is not a conforming JP2 file (%d) \n", jp2->C);
}
return OPJ_TRUE;
}
-static void jp2_write_ihdr(opj_jp2_t *jp2, opj_cio_t *cio) {
- opj_jp2_box_t box;
-
- box.init_pos = cio_tell(cio);
- cio_skip(cio, 4);
- cio_write(cio, JP2_IHDR, 4); /* IHDR */
-
- cio_write(cio, jp2->h, 4); /* HEIGHT */
- cio_write(cio, jp2->w, 4); /* WIDTH */
- cio_write(cio, jp2->numcomps, 2); /* NC */
+/**
+ * Writes the Image Header box - Image Header box.
+ *
+ * @param jp2 jpeg2000 file codec.
+ * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
+ *
+ * @return the data being copied.
+*/
+OPJ_BYTE * opj_jp2_write_ihdr(opj_jp2_v2_t *jp2,
+ OPJ_UINT32 * p_nb_bytes_written
+ )
+{
+ unsigned char * l_ihdr_data,* l_current_ihdr_ptr;
+
+ // preconditions
+ assert(jp2 != 00);
+ assert(p_nb_bytes_written != 00);
- cio_write(cio, jp2->bpc, 1); /* BPC */
+ /* default image header is 22 bytes wide */
+ l_ihdr_data = (unsigned char *) opj_malloc(22);
+ if (l_ihdr_data == 00) {
+ return 00;
+ }
+ memset(l_ihdr_data,0,22);
- cio_write(cio, jp2->C, 1); /* C : Always 7 */
- cio_write(cio, jp2->UnkC, 1); /* UnkC, colorspace unknown */
- cio_write(cio, jp2->IPR, 1); /* IPR, no intellectual property */
+ l_current_ihdr_ptr = l_ihdr_data;
+
+ opj_write_bytes(l_current_ihdr_ptr,22,4); /* write box size */
+ l_current_ihdr_ptr+=4;
- box.length = cio_tell(cio) - box.init_pos;
- cio_seek(cio, box.init_pos);
- cio_write(cio, box.length, 4); /* L */
- cio_seek(cio, box.init_pos + box.length);
+ opj_write_bytes(l_current_ihdr_ptr,JP2_IHDR, 4); /* IHDR */
+ l_current_ihdr_ptr+=4;
+
+ opj_write_bytes(l_current_ihdr_ptr,jp2->h, 4); /* HEIGHT */
+ l_current_ihdr_ptr+=4;
+
+ opj_write_bytes(l_current_ihdr_ptr, jp2->w, 4); /* WIDTH */
+ l_current_ihdr_ptr+=4;
+
+ opj_write_bytes(l_current_ihdr_ptr, jp2->numcomps, 2); /* NC */
+ l_current_ihdr_ptr+=2;
+
+ opj_write_bytes(l_current_ihdr_ptr, jp2->bpc, 1); /* BPC */
+ ++l_current_ihdr_ptr;
+
+ opj_write_bytes(l_current_ihdr_ptr, jp2->C, 1); /* C : Always 7 */
+ ++l_current_ihdr_ptr;
+
+ opj_write_bytes(l_current_ihdr_ptr, jp2->UnkC, 1); /* UnkC, colorspace unknown */
+ ++l_current_ihdr_ptr;
+
+ opj_write_bytes(l_current_ihdr_ptr, jp2->IPR, 1); /* IPR, no intellectual property */
+ ++l_current_ihdr_ptr;
+
+ *p_nb_bytes_written = 22;
+
+ return l_ihdr_data;
}
-static void jp2_write_bpcc(opj_jp2_t *jp2, opj_cio_t *cio) {
+/**
+ * Writes the Bit per Component box.
+ *
+ * @param jp2 jpeg2000 file codec.
+ * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
+ *
+ * @return the data being copied.
+*/
+OPJ_BYTE * opj_jp2_write_bpcc( opj_jp2_v2_t *jp2,
+ OPJ_UINT32 * p_nb_bytes_written
+ )
+{
unsigned int i;
- opj_jp2_box_t box;
-
- box.init_pos = cio_tell(cio);
- cio_skip(cio, 4);
- cio_write(cio, JP2_BPCC, 4); /* BPCC */
+ /* room for 8 bytes for box and 1 byte for each component */
+ int l_bpcc_size = 8 + jp2->numcomps;
+ unsigned char * l_bpcc_data,* l_current_bpcc_ptr;
+
+ // preconditions
+ assert(jp2 != 00);
+ assert(p_nb_bytes_written != 00);
- for (i = 0; i < jp2->numcomps; i++) {
- cio_write(cio, jp2->comps[i].bpcc, 1);
+ l_bpcc_data = (unsigned char *) opj_malloc(l_bpcc_size);
+ if (l_bpcc_data == 00) {
+ return 00;
}
+ memset(l_bpcc_data,0,l_bpcc_size);
- box.length = cio_tell(cio) - box.init_pos;
- cio_seek(cio, box.init_pos);
- cio_write(cio, box.length, 4); /* L */
- cio_seek(cio, box.init_pos + box.length);
-}
-
-
-static opj_bool jp2_read_bpcc(opj_jp2_t *jp2, opj_cio_t *cio) {
- unsigned int i;
- opj_jp2_box_t box;
-
- opj_common_ptr cinfo = jp2->cinfo;
-
- jp2_read_boxhdr(cinfo, cio, &box);
- if (JP2_BPCC != box.type) {
- opj_event_msg(cinfo, EVT_ERROR, "Expected BPCC Marker\n");
- return OPJ_FALSE;
- }
+ l_current_bpcc_ptr = l_bpcc_data;
- for (i = 0; i < jp2->numcomps; i++) {
- jp2->comps[i].bpcc = cio_read(cio, 1);
- }
+ opj_write_bytes(l_current_bpcc_ptr,l_bpcc_size,4); /* write box size */
+ l_current_bpcc_ptr += 4;
+
+ opj_write_bytes(l_current_bpcc_ptr,JP2_BPCC,4); /* BPCC */
+ l_current_bpcc_ptr += 4;
- if (cio_tell(cio) - box.init_pos != box.length) {
- opj_event_msg(cinfo, EVT_ERROR, "Error with BPCC Box\n");
- return OPJ_FALSE;
+ for (i = 0; i < jp2->numcomps; ++i) {
+ opj_write_bytes(l_current_bpcc_ptr, jp2->comps[i].bpcc, 1); /* write each component information */
+ ++l_current_bpcc_ptr;
}
- return OPJ_TRUE;
+ *p_nb_bytes_written = l_bpcc_size;
+
+ return l_bpcc_data;
}
+
/**
* Reads a Bit per Component box.
*
- * @param p_bpc_header_data pointer to actual data (already read from file)
* @param jp2 the jpeg2000 file codec.
+ * @param p_bpc_header_data pointer to actual data (already read from file)
* @param p_bpc_header_size pointer that will hold the size of the bpc header
- * @param p_bpc_header_max_size maximum size of the header, any size bigger than this value should result the function to output false.
* @param p_manager the user event manager.
*
- * @return true if the bpc header is valid, fale else.
+ * @return true if the bpc header is valid, false otherwise.
*/
-opj_bool jp2_read_bpcc_v2( opj_jp2_v2_t *jp2,
- unsigned char * p_bpc_header_data,
- unsigned int p_bpc_header_size,
- opj_event_mgr_t * p_manager
- )
+opj_bool opj_jp2_read_bpcc( opj_jp2_v2_t *jp2,
+ OPJ_BYTE * p_bpc_header_data,
+ OPJ_UINT32 p_bpc_header_size,
+ opj_event_mgr_t * p_manager
+ )
{
OPJ_UINT32 i;
- // preconditions
+ /* preconditions */
assert(p_bpc_header_data != 00);
assert(jp2 != 00);
assert(p_manager != 00);
- // TODO MSD
+ /* TODO MSD */
/*if (jp2->bpc != 0 ){
opj_event_msg_v2(p_manager, EVT_WARNING, "A BPCC header box is available although BPC is different to zero (%d)\n",jp2->bpc);
}*/
- // and length is relevant
+ /* and length is relevant */
if (p_bpc_header_size != jp2->numcomps) {
opj_event_msg_v2(p_manager, EVT_ERROR, "Bad BPCC header box (bad size)\n");
return OPJ_FALSE;
}
- // read info for each component
+ /* read info for each component */
for (i = 0; i < jp2->numcomps; ++i) {
opj_read_bytes(p_bpc_header_data,&jp2->comps[i].bpcc ,1); /* read each BPCC component */
++p_bpc_header_data;
return OPJ_TRUE;
}
-static void jp2_write_colr(opj_jp2_t *jp2, opj_cio_t *cio) {
- opj_jp2_box_t box;
-
- box.init_pos = cio_tell(cio);
- cio_skip(cio, 4);
- cio_write(cio, JP2_COLR, 4); /* COLR */
-
- cio_write(cio, jp2->meth, 1); /* METH */
- cio_write(cio, jp2->precedence, 1); /* PRECEDENCE */
- cio_write(cio, jp2->approx, 1); /* APPROX */
+/**
+ * Writes the Colour Specification box.
+ *
+ * @param jp2 jpeg2000 file codec.
+ * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
+ *
+ * @return the data being copied.
+*/
+OPJ_BYTE * opj_jp2_write_colr( opj_jp2_v2_t *jp2,
+ OPJ_UINT32 * p_nb_bytes_written
+ )
+{
+ /* room for 8 bytes for box 3 for common data and variable upon profile*/
+ unsigned int l_colr_size = 11;
+ unsigned char * l_colr_data,* l_current_colr_ptr;
+
+ // preconditions
+ assert(jp2 != 00);
+ assert(p_nb_bytes_written != 00);
+
+ switch (jp2->meth) {
+ case 1 :
+ l_colr_size += 4;
+ break;
+ case 2 :
+ ++l_colr_size;
+ break;
+ default :
+ return 00;
+ }
- if(jp2->meth == 2)
- jp2->enumcs = 0;
+ l_colr_data = (unsigned char *) opj_malloc(l_colr_size);
+ if (l_colr_data == 00) {
+ return 00;
+ }
+ memset(l_colr_data,0,l_colr_size);
+
+ l_current_colr_ptr = l_colr_data;
- cio_write(cio, jp2->enumcs, 4); /* EnumCS */
+ opj_write_bytes(l_current_colr_ptr,l_colr_size,4); /* write box size */
+ l_current_colr_ptr += 4;
+
+ opj_write_bytes(l_current_colr_ptr,JP2_COLR,4); /* BPCC */
+ l_current_colr_ptr += 4;
+
+ opj_write_bytes(l_current_colr_ptr, jp2->meth,1); /* METH */
+ ++l_current_colr_ptr;
+
+ opj_write_bytes(l_current_colr_ptr, jp2->precedence,1); /* PRECEDENCE */
+ ++l_current_colr_ptr;
+
+ opj_write_bytes(l_current_colr_ptr, jp2->approx,1); /* APPROX */
+ ++l_current_colr_ptr;
+
+ if (jp2->meth == 1) {
+ opj_write_bytes(l_current_colr_ptr, jp2->enumcs,4); /* EnumCS */
+ }
+ else {
+ opj_write_bytes(l_current_colr_ptr, 0, 1); /* PROFILE (??) */
+ }
- box.length = cio_tell(cio) - box.init_pos;
- cio_seek(cio, box.init_pos);
- cio_write(cio, box.length, 4); /* L */
- cio_seek(cio, box.init_pos + box.length);
+ *p_nb_bytes_written = l_colr_size;
+
+ return l_colr_data;
}
static void jp2_free_pclr(opj_jp2_color_t *color)
}/* apply_pclr() */
-
-static opj_bool jp2_read_pclr(opj_jp2_t *jp2, opj_cio_t *cio,
- opj_jp2_box_t *box, opj_jp2_color_t *color)
-{
- opj_jp2_pclr_t *jp2_pclr;
- unsigned char *channel_size, *channel_sign;
- unsigned int *entries;
- unsigned short nr_entries, nr_channels;
- unsigned short i, j;
- unsigned char uc;
-
- OPJ_ARG_NOT_USED(box);
- OPJ_ARG_NOT_USED(jp2);
-
-/* Part 1, I.5.3.4: 'There shall be at most one Palette box inside
- * a JP2 Header box' :
-*/
- if(color->jp2_pclr) return OPJ_FALSE;
-
- nr_entries = (unsigned short)cio_read(cio, 2); /* NE */
- nr_channels = (unsigned short)cio_read(cio, 1);/* NPC */
-
- entries = (unsigned int*)
- opj_malloc(nr_channels * nr_entries * sizeof(unsigned int));
- channel_size = (unsigned char*)opj_malloc(nr_channels);
- channel_sign = (unsigned char*)opj_malloc(nr_channels);
-
- jp2_pclr = (opj_jp2_pclr_t*)opj_malloc(sizeof(opj_jp2_pclr_t));
- jp2_pclr->channel_sign = channel_sign;
- jp2_pclr->channel_size = channel_size;
- jp2_pclr->entries = entries;
- jp2_pclr->nr_entries = nr_entries;
- jp2_pclr->nr_channels = nr_channels;
- jp2_pclr->cmap = NULL;
-
- color->jp2_pclr = jp2_pclr;
-
- for(i = 0; i < nr_channels; ++i)
- {
- uc = cio_read(cio, 1); /* Bi */
- channel_size[i] = (uc & 0x7f) + 1;
- channel_sign[i] = (uc & 0x80)?1:0;
- }
-
- for(j = 0; j < nr_entries; ++j)
- {
- for(i = 0; i < nr_channels; ++i)
- {
-/* Cji */
- *entries++ = cio_read(cio, channel_size[i]>>3);
- }
- }
-
- return OPJ_TRUE;
-}/* jp2_read_pclr() */
-
/**
* Reads a palette box.
*
- * @param p_bpc_header_data pointer to actual data (already read from file)
* @param jp2 the jpeg2000 file codec.
- * @param p_bpc_header_size pointer that will hold the size of the bpc header
- * @param p_bpc_header_max_size maximum size of the header, any size bigger than this value should result the function to output false.
+ * @param p_pclr_header_data pointer to actual data (already read from file)
+ * @param p_pclr_header_size pointer that will hold the size of the PCLR header
* @param p_manager the user event manager.
*
* @return true if the bpc header is valid, fale else.
*/
-opj_bool jp2_read_pclr_v2( opj_jp2_v2_t *jp2,
- unsigned char * p_pclr_header_data,
- OPJ_UINT32 p_pclr_header_size,
- opj_event_mgr_t * p_manager
- ){
+opj_bool opj_jp2_read_pclr( opj_jp2_v2_t *jp2,
+ OPJ_BYTE * p_pclr_header_data,
+ OPJ_UINT32 p_pclr_header_size,
+ opj_event_mgr_t * p_manager
+ )
+{
opj_jp2_pclr_t *jp2_pclr;
OPJ_BYTE *channel_size, *channel_sign;
OPJ_UINT32 *entries;
OPJ_UINT16 i, j;
OPJ_UINT32 l_value;
- // preconditions
+ /* preconditions */
assert(p_pclr_header_data != 00);
assert(jp2 != 00);
assert(p_manager != 00);
+ (void)p_pclr_header_size;
if(jp2->color.jp2_pclr)
return OPJ_FALSE;
jp2_pclr->channel_size = channel_size;
jp2_pclr->entries = entries;
jp2_pclr->nr_entries = nr_entries;
- jp2_pclr->nr_channels = nr_channels;
+ jp2_pclr->nr_channels = (OPJ_BYTE) l_value;
jp2_pclr->cmap = NULL;
jp2->color.jp2_pclr = jp2_pclr;
for(j = 0; j < nr_entries; ++j) {
for(i = 0; i < nr_channels; ++i) {
- //*entries++ = cio_read(cio, channel_size[i]>>3);
- opj_read_bytes(p_pclr_header_data, &l_value , channel_size[i]>>3); /* Cji */
- p_pclr_header_data += channel_size[i]>>3;
+ int bytes_to_read = (channel_size[i]+7)>>3;
+
+ opj_read_bytes(p_pclr_header_data, &l_value , bytes_to_read); /* Cji */
+ p_pclr_header_data += bytes_to_read;
*entries = (OPJ_UINT32) l_value;
entries++;
}
return OPJ_TRUE;
}
-
-static opj_bool jp2_read_cmap(opj_jp2_t *jp2, opj_cio_t *cio,
- opj_jp2_box_t *box, opj_jp2_color_t *color)
-{
- opj_jp2_cmap_comp_t *cmap;
- unsigned short i, nr_channels;
-
- OPJ_ARG_NOT_USED(box);
- OPJ_ARG_NOT_USED(jp2);
-
-/* Need nr_channels: */
- if(color->jp2_pclr == NULL) return OPJ_FALSE;
-
-/* Part 1, I.5.3.5: 'There shall be at most one Component Mapping box
- * inside a JP2 Header box' :
-*/
- if(color->jp2_pclr->cmap) return OPJ_FALSE;
-
- nr_channels = color->jp2_pclr->nr_channels;
- cmap = (opj_jp2_cmap_comp_t*)
- opj_malloc(nr_channels * sizeof(opj_jp2_cmap_comp_t));
-
- for(i = 0; i < nr_channels; ++i)
- {
- cmap[i].cmp = (unsigned short)cio_read(cio, 2);
- cmap[i].mtyp = cio_read(cio, 1);
- cmap[i].pcol = cio_read(cio, 1);
-
- }
- color->jp2_pclr->cmap = cmap;
-
- return OPJ_TRUE;
-
-}/* jp2_read_cmap() */
-
/**
* Reads the Component Mapping box.
*
*
* @return true if the cdef header is valid, false else.
*/
-static opj_bool jp2_read_cmap_v2( opj_jp2_v2_t * jp2,
- unsigned char * p_cmap_header_data,
- OPJ_UINT32 p_cmap_header_size,
- opj_event_mgr_t * p_manager
- )
+opj_bool opj_jp2_read_cmap( opj_jp2_v2_t * jp2,
+ OPJ_BYTE * p_cmap_header_data,
+ OPJ_UINT32 p_cmap_header_size,
+ opj_event_mgr_t * p_manager
+ )
{
opj_jp2_cmap_comp_t *cmap;
OPJ_BYTE i, nr_channels;
OPJ_UINT32 l_value;
- // preconditions
+ /* preconditions */
assert(jp2 != 00);
assert(p_cmap_header_data != 00);
assert(p_manager != 00);
+ (void)p_cmap_header_size;
/* Need nr_channels: */
if(jp2->color.jp2_pclr == NULL) {
}/* jp2_apply_cdef() */
-static opj_bool jp2_read_cdef(opj_jp2_t *jp2, opj_cio_t *cio,
- opj_jp2_box_t *box, opj_jp2_color_t *color)
-{
- opj_jp2_cdef_info_t *info;
- unsigned short i, n;
-
- OPJ_ARG_NOT_USED(box);
- OPJ_ARG_NOT_USED(jp2);
-
-/* Part 1, I.5.3.6: 'The shall be at most one Channel Definition box
- * inside a JP2 Header box.'
-*/
- if(color->jp2_cdef) return OPJ_FALSE;
-
- if((n = (unsigned short)cio_read(cio, 2)) == 0) return OPJ_FALSE; /* szukw000: FIXME */
-
- info = (opj_jp2_cdef_info_t*)
- opj_malloc(n * sizeof(opj_jp2_cdef_info_t));
-
- color->jp2_cdef = (opj_jp2_cdef_t*)opj_malloc(sizeof(opj_jp2_cdef_t));
- color->jp2_cdef->info = info;
- color->jp2_cdef->n = n;
-
- for(i = 0; i < n; ++i)
- {
- info[i].cn = (unsigned short)cio_read(cio, 2);
- info[i].typ = (unsigned short)cio_read(cio, 2);
- info[i].asoc = (unsigned short)cio_read(cio, 2);
-
- }
- return OPJ_TRUE;
-}/* jp2_read_cdef() */
-
/**
* Reads the Component Definition box.
*
*
* @return true if the cdef header is valid, false else.
*/
-static opj_bool jp2_read_cdef_v2( opj_jp2_v2_t * jp2,
- unsigned char * p_cdef_header_data,
+opj_bool opj_jp2_read_cdef( opj_jp2_v2_t * jp2,
+ OPJ_BYTE * p_cdef_header_data,
OPJ_UINT32 p_cdef_header_size,
- opj_event_mgr_t * p_manager
- )
+ opj_event_mgr_t * p_manager
+ )
{
opj_jp2_cdef_info_t *cdef_info;
unsigned short i;
OPJ_UINT32 l_value;
- // preconditions
+ /* preconditions */
assert(jp2 != 00);
assert(p_cdef_header_data != 00);
assert(p_manager != 00);
+ (void)p_cdef_header_size;
/* Part 1, I.5.3.6: 'The shall be at most one Channel Definition box
* inside a JP2 Header box.'*/
return OPJ_TRUE;
}
-
-static opj_bool jp2_read_colr(opj_jp2_t *jp2, opj_cio_t *cio,
- opj_jp2_box_t *box, opj_jp2_color_t *color)
-{
- int skip_len;
- opj_common_ptr cinfo;
-
-/* Part 1, I.5.3.3 : 'A conforming JP2 reader shall ignore all Colour
- * Specification boxes after the first.'
-*/
- if(color->jp2_has_colr) return OPJ_FALSE;
-
- cinfo = jp2->cinfo;
-
- jp2->meth = cio_read(cio, 1); /* METH */
- jp2->precedence = cio_read(cio, 1); /* PRECEDENCE */
- jp2->approx = cio_read(cio, 1); /* APPROX */
-
- if (jp2->meth == 1)
- {
- jp2->enumcs = cio_read(cio, 4); /* EnumCS */
- }
- else
- if (jp2->meth == 2)
- {
-/* skip PROFILE */
- skip_len = box->init_pos + box->length - cio_tell(cio);
- if (skip_len < 0)
- {
- opj_event_msg(cinfo, EVT_ERROR, "Error with COLR box size\n");
- return OPJ_FALSE;
- }
- if(skip_len > 0)
- {
- unsigned char *start;
-
- start = cio_getbp(cio);
- color->icc_profile_buf = (unsigned char*)opj_malloc(skip_len);
- color->icc_profile_len = skip_len;
-
- cio_skip(cio, box->init_pos + box->length - cio_tell(cio));
-
- memcpy(color->icc_profile_buf, start, skip_len);
- }
- }
-
- if (cio_tell(cio) - box->init_pos != box->length)
- {
- opj_event_msg(cinfo, EVT_ERROR, "Error with COLR Box\n");
- return OPJ_FALSE;
- }
- color->jp2_has_colr = 1;
-
- return OPJ_TRUE;
-}/* jp2_read_colr() */
-
/**
* Reads the Colour Specification box.
*
*
* @return true if the bpc header is valid, fale else.
*/
-static opj_bool jp2_read_colr_v2( opj_jp2_v2_t * jp2,
- unsigned char * p_colr_header_data,
- OPJ_UINT32 p_colr_header_size,
- opj_event_mgr_t * p_manager
- )
+opj_bool opj_jp2_read_colr( opj_jp2_v2_t *jp2,
+ OPJ_BYTE * p_colr_header_data,
+ OPJ_UINT32 p_colr_header_size,
+ opj_event_mgr_t * p_manager
+ )
{
OPJ_UINT32 l_value;
- // preconditions
+ /* preconditions */
assert(jp2 != 00);
assert(p_colr_header_data != 00);
assert(p_manager != 00);
opj_read_bytes(p_colr_header_data,&jp2->enumcs ,4); /* EnumCS */
}
else if (jp2->meth == 2) {
- // ICC profile
+ /* ICC profile */
int it_icc_value = 0;
int icc_len = p_colr_header_size - 3;
}
}
- else // TODO MSD
+ else /* TODO MSD */
opj_event_msg_v2(p_manager, EVT_INFO, "COLR BOX meth value is not a regular value (%d), so we will skip the fields following the approx field.\n", jp2->meth);
jp2->color.jp2_has_colr = 1;
return OPJ_TRUE;
}
-opj_bool jp2_read_jp2h(opj_jp2_t *jp2, opj_cio_t *cio, opj_jp2_color_t *color)
-{
- opj_jp2_box_t box;
- int jp2h_end;
-
- opj_common_ptr cinfo = jp2->cinfo;
-
- jp2_read_boxhdr(cinfo, cio, &box);
- do
- {
- if (JP2_JP2H != box.type)
- {
- if (box.type == JP2_JP2C)
- {
- opj_event_msg(cinfo, EVT_ERROR, "Expected JP2H Marker\n");
- return OPJ_FALSE;
- }
- cio_skip(cio, box.length - 8);
-
- if(cio->bp >= cio->end) return OPJ_FALSE;
-
- jp2_read_boxhdr(cinfo, cio, &box);
- }
- } while(JP2_JP2H != box.type);
-
- if (!jp2_read_ihdr(jp2, cio))
- return OPJ_FALSE;
- jp2h_end = box.init_pos + box.length;
-
- if (jp2->bpc == 255)
- {
- if (!jp2_read_bpcc(jp2, cio))
- return OPJ_FALSE;
- }
- jp2_read_boxhdr(cinfo, cio, &box);
- while(cio_tell(cio) < jp2h_end)
- {
- if(box.type == JP2_COLR)
- {
- if( !jp2_read_colr(jp2, cio, &box, color))
- {
- cio_seek(cio, box.init_pos + 8);
- cio_skip(cio, box.length - 8);
- }
- jp2_read_boxhdr(cinfo, cio, &box);
- continue;
- }
- if(box.type == JP2_CDEF)
- {
- if( !jp2_read_cdef(jp2, cio, &box, color))
- {
- cio_seek(cio, box.init_pos + 8);
- cio_skip(cio, box.length - 8);
- }
- jp2_read_boxhdr(cinfo, cio, &box);
- continue;
- }
- if(box.type == JP2_PCLR)
- {
- if( !jp2_read_pclr(jp2, cio, &box, color))
- {
- cio_seek(cio, box.init_pos + 8);
- cio_skip(cio, box.length - 8);
- }
- jp2_read_boxhdr(cinfo, cio, &box);
- continue;
- }
- if(box.type == JP2_CMAP)
- {
- if( !jp2_read_cmap(jp2, cio, &box, color))
- {
- cio_seek(cio, box.init_pos + 8);
- cio_skip(cio, box.length - 8);
- }
- jp2_read_boxhdr(cinfo, cio, &box);
- continue;
- }
- cio_seek(cio, box.init_pos + 8);
- cio_skip(cio, box.length - 8);
- jp2_read_boxhdr(cinfo, cio, &box);
-
- }/* while(cio_tell(cio) < box_end) */
-
- cio_seek(cio, jp2h_end);
-
-/* Part 1, I.5.3.3 : 'must contain at least one' */
- return (color->jp2_has_colr == 1);
-
-}/* jp2_read_jp2h() */
-
-opj_image_t* opj_jp2_decode(opj_jp2_t *jp2, opj_cio_t *cio,
- opj_codestream_info_t *cstr_info)
-{
- opj_common_ptr cinfo;
- opj_image_t *image = NULL;
- opj_jp2_color_t color;
-
- if(!jp2 || !cio)
- {
- return NULL;
- }
- memset(&color, 0, sizeof(opj_jp2_color_t));
- cinfo = jp2->cinfo;
-
-/* JP2 decoding */
- if(!jp2_read_struct(jp2, cio, &color))
- {
- free_color_data(&color);
- opj_event_msg(cinfo, EVT_ERROR, "Failed to decode jp2 structure\n");
- return NULL;
- }
-
-/* J2K decoding */
- image = j2k_decode(jp2->j2k, cio, cstr_info);
-
- if(!image)
- {
- free_color_data(&color);
- opj_event_msg(cinfo, EVT_ERROR, "Failed to decode J2K image\n");
- return NULL;
- }
-
-/* Set Image Color Space */
- if (jp2->enumcs == 16)
- image->color_space = CLRSPC_SRGB;
- else if (jp2->enumcs == 17)
- image->color_space = CLRSPC_GRAY;
- else if (jp2->enumcs == 18)
- image->color_space = CLRSPC_SYCC;
- else
- image->color_space = CLRSPC_UNKNOWN;
-
- if(color.jp2_cdef)
- {
- jp2_apply_cdef(image, &color);
- }
- if(color.jp2_pclr)
- {
-/* Part 1, I.5.3.4: Either both or none : */
- if( !color.jp2_pclr->cmap)
- jp2_free_pclr(&color);
- else
- jp2_apply_pclr(image, &color);
- }
- if(color.icc_profile_buf)
- {
- image->icc_profile_buf = color.icc_profile_buf;
- color.icc_profile_buf = NULL;
- image->icc_profile_len = color.icc_profile_len;
- }
- return image;
-
-}/* opj_jp2_decode() */
-
-opj_bool jp2_decode_v2( opj_jp2_v2_t *jp2,
- struct opj_stream_private *cio,
- opj_image_t* p_image,
- struct opj_event_mgr * p_manager)
+opj_bool opj_jp2_decode(opj_jp2_v2_t *jp2,
+ opj_stream_private_t *p_stream,
+ opj_image_t* p_image,
+ opj_event_mgr_t * p_manager)
{
if (!p_image)
return OPJ_FALSE;
/* J2K decoding */
- if( ! j2k_decode_v2(jp2->j2k, cio, p_image, p_manager) ) {
+ if( ! opj_j2k_decode(jp2->j2k, p_stream, p_image, p_manager) ) {
opj_event_msg_v2(p_manager, EVT_ERROR, "Failed to decode the codestream in the JP2 file\n");
return OPJ_FALSE;
}
-
- /* Set Image Color Space */
- if (jp2->enumcs == 16)
- p_image->color_space = CLRSPC_SRGB;
- else if (jp2->enumcs == 17)
- p_image->color_space = CLRSPC_GRAY;
- else if (jp2->enumcs == 18)
- p_image->color_space = CLRSPC_SYCC;
- else
- p_image->color_space = CLRSPC_UNKNOWN;
-
- /* Apply the color space if needed */
- if(jp2->color.jp2_cdef) {
- jp2_apply_cdef(p_image, &(jp2->color));
- }
-
- if(jp2->color.jp2_pclr) {
- /* Part 1, I.5.3.4: Either both or none : */
- if( !jp2->color.jp2_pclr->cmap)
- jp2_free_pclr(&(jp2->color));
- else
- jp2_apply_pclr(p_image, &(jp2->color));
- }
-
- if(jp2->color.icc_profile_buf) {
- p_image->icc_profile_buf = jp2->color.icc_profile_buf;
- p_image->icc_profile_len = jp2->color.icc_profile_len;
- jp2->color.icc_profile_buf = NULL;
- }
+
+ if (!jp2->ignore_pclr_cmap_cdef){
+
+ /* Set Image Color Space */
+ if (jp2->enumcs == 16)
+ p_image->color_space = CLRSPC_SRGB;
+ else if (jp2->enumcs == 17)
+ p_image->color_space = CLRSPC_GRAY;
+ else if (jp2->enumcs == 18)
+ p_image->color_space = CLRSPC_SYCC;
+ else
+ p_image->color_space = CLRSPC_UNKNOWN;
+
+ /* Apply the color space if needed */
+ if(jp2->color.jp2_cdef) {
+ jp2_apply_cdef(p_image, &(jp2->color));
+ }
+
+ if(jp2->color.jp2_pclr) {
+ /* Part 1, I.5.3.4: Either both or none : */
+ if( !jp2->color.jp2_pclr->cmap)
+ jp2_free_pclr(&(jp2->color));
+ else
+ jp2_apply_pclr(p_image, &(jp2->color));
+ }
+
+ if(jp2->color.icc_profile_buf) {
+ p_image->icc_profile_buf = jp2->color.icc_profile_buf;
+ p_image->icc_profile_len = jp2->color.icc_profile_len;
+ jp2->color.icc_profile_buf = NULL;
+ }
+ }
return OPJ_TRUE;
}
-void jp2_write_jp2h(opj_jp2_t *jp2, opj_cio_t *cio) {
- opj_jp2_box_t box;
+/**
+ * Writes the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).
+ *
+ * @param cio the stream to write data to.
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_manager user event manager.
+ *
+ * @return true if writting was successful.
+*/
+opj_bool opj_jp2_write_jp2h(opj_jp2_v2_t *jp2,
+ opj_stream_private_t *stream,
+ opj_event_mgr_t * p_manager
+ )
+{
+ opj_jp2_img_header_writer_handler_t l_writers [3];
+ opj_jp2_img_header_writer_handler_t * l_current_writer;
- box.init_pos = cio_tell(cio);
- cio_skip(cio, 4);
- cio_write(cio, JP2_JP2H, 4); /* JP2H */
+ int i, l_nb_pass;
+ /* size of data for super box*/
+ int l_jp2h_size = 8;
+ opj_bool l_result = OPJ_TRUE;
- jp2_write_ihdr(jp2, cio);
+ /* to store the data of the super box */
+ unsigned char l_jp2h_data [8];
+
+ // preconditions
+ assert(stream != 00);
+ assert(jp2 != 00);
+ assert(p_manager != 00);
+
+ memset(l_writers,0,sizeof(l_writers));
if (jp2->bpc == 255) {
- jp2_write_bpcc(jp2, cio);
+ l_nb_pass = 3;
+ l_writers[0].handler = opj_jp2_write_ihdr;
+ l_writers[1].handler = opj_jp2_write_bpcc;
+ l_writers[2].handler = opj_jp2_write_colr;
}
- jp2_write_colr(jp2, cio);
-
- box.length = cio_tell(cio) - box.init_pos;
- cio_seek(cio, box.init_pos);
- cio_write(cio, box.length, 4); /* L */
- cio_seek(cio, box.init_pos + box.length);
-}
-
-static void jp2_write_ftyp(opj_jp2_t *jp2, opj_cio_t *cio) {
- unsigned int i;
- opj_jp2_box_t box;
-
- box.init_pos = cio_tell(cio);
- cio_skip(cio, 4);
- cio_write(cio, JP2_FTYP, 4); /* FTYP */
-
- cio_write(cio, jp2->brand, 4); /* BR */
- cio_write(cio, jp2->minversion, 4); /* MinV */
-
- for (i = 0; i < jp2->numcl; i++) {
- cio_write(cio, jp2->cl[i], 4); /* CL */
+ else {
+ l_nb_pass = 2;
+ l_writers[0].handler = opj_jp2_write_ihdr;
+ l_writers[1].handler = opj_jp2_write_colr;
}
+
+ /* write box header */
+ /* write JP2H type */
+ opj_write_bytes(l_jp2h_data+4,JP2_JP2H,4);
+
+ l_current_writer = l_writers;
+ for (i=0;i<l_nb_pass;++i) {
+ l_current_writer->m_data = l_current_writer->handler(jp2,&(l_current_writer->m_size));
+ if (l_current_writer->m_data == 00) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory to hold JP2 Header data\n");
+ l_result = OPJ_FALSE;
+ break;
+ }
- box.length = cio_tell(cio) - box.init_pos;
- cio_seek(cio, box.init_pos);
- cio_write(cio, box.length, 4); /* L */
- cio_seek(cio, box.init_pos + box.length);
-}
-
-static opj_bool jp2_read_ftyp(opj_jp2_t *jp2, opj_cio_t *cio) {
- int i;
- opj_jp2_box_t box;
-
- opj_common_ptr cinfo = jp2->cinfo;
+ l_jp2h_size += l_current_writer->m_size;
+ ++l_current_writer;
+ }
- jp2_read_boxhdr(cinfo, cio, &box);
+ if (! l_result) {
+ l_current_writer = l_writers;
+ for (i=0;i<l_nb_pass;++i) {
+ if (l_current_writer->m_data != 00) {
+ opj_free(l_current_writer->m_data );
+ }
+ ++l_current_writer;
+ }
- if (JP2_FTYP != box.type) {
- opj_event_msg(cinfo, EVT_ERROR, "Expected FTYP Marker\n");
return OPJ_FALSE;
}
- jp2->brand = cio_read(cio, 4); /* BR */
- jp2->minversion = cio_read(cio, 4); /* MinV */
- jp2->numcl = (box.length - 16) / 4;
- jp2->cl = (unsigned int *) opj_malloc(jp2->numcl * sizeof(unsigned int));
-
- for (i = 0; i < (int)jp2->numcl; i++) {
- jp2->cl[i] = cio_read(cio, 4); /* CLi */
+ /* write super box size */
+ opj_write_bytes(l_jp2h_data,l_jp2h_size,4);
+
+ /* write super box data on stream */
+ if (opj_stream_write_data(stream,l_jp2h_data,8,p_manager) != 8) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Stream error while writing JP2 Header box\n");
+ l_result = OPJ_FALSE;
+ }
+
+ if (l_result) {
+ l_current_writer = l_writers;
+ for (i=0;i<l_nb_pass;++i) {
+ if (opj_stream_write_data(stream,l_current_writer->m_data,l_current_writer->m_size,p_manager) != l_current_writer->m_size) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Stream error while writting JP2 Header box\n");
+ l_result = OPJ_FALSE;
+ break;
+ }
+ ++l_current_writer;
+ }
}
- if (cio_tell(cio) - box.init_pos != box.length) {
- opj_event_msg(cinfo, EVT_ERROR, "Error with FTYP Box\n");
- return OPJ_FALSE;
+ l_current_writer = l_writers;
+
+ /* cleanup */
+ for (i=0;i<l_nb_pass;++i) {
+ if (l_current_writer->m_data != 00) {
+ opj_free(l_current_writer->m_data );
+ }
+ ++l_current_writer;
}
- return OPJ_TRUE;
+ return l_result;
}
-static int jp2_write_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image, opj_codestream_info_t *cstr_info) {
- unsigned int j2k_codestream_offset, j2k_codestream_length;
- opj_jp2_box_t box;
-
- opj_j2k_t *j2k = jp2->j2k;
+/**
+ * Writes a FTYP box - File type box
+ *
+ * @param cio the stream to write data to.
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_manager the user event manager.
+ *
+ * @return true if writting was successful.
+ */
+opj_bool opj_jp2_write_ftyp(opj_jp2_v2_t *jp2,
+ opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager )
+{
+ unsigned int i;
+ unsigned int l_ftyp_size = 16 + 4 * jp2->numcl;
+ unsigned char * l_ftyp_data, * l_current_data_ptr;
+ opj_bool l_result;
- box.init_pos = cio_tell(cio);
- cio_skip(cio, 4);
- cio_write(cio, JP2_JP2C, 4); /* JP2C */
+ // preconditions
+ assert(cio != 00);
+ assert(jp2 != 00);
+ assert(p_manager != 00);
- /* J2K encoding */
- j2k_codestream_offset = cio_tell(cio);
- if(!j2k_encode(j2k, cio, image, cstr_info)) {
- opj_event_msg(j2k->cinfo, EVT_ERROR, "Failed to encode image\n");
- return 0;
+ l_ftyp_data = (unsigned char *) opj_malloc(l_ftyp_size);
+
+ if (l_ftyp_data == 00) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory to handle ftyp data\n");
+ return OPJ_FALSE;
}
- j2k_codestream_length = cio_tell(cio) - j2k_codestream_offset;
- jp2->j2k_codestream_offset = j2k_codestream_offset;
- jp2->j2k_codestream_length = j2k_codestream_length;
+ memset(l_ftyp_data,0,l_ftyp_size);
- box.length = 8 + jp2->j2k_codestream_length;
- cio_seek(cio, box.init_pos);
- cio_write(cio, box.length, 4); /* L */
- cio_seek(cio, box.init_pos + box.length);
-
- return box.length;
-}
-
-static opj_bool jp2_read_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, unsigned int *j2k_codestream_length, unsigned int *j2k_codestream_offset) {
- opj_jp2_box_t box;
+ l_current_data_ptr = l_ftyp_data;
- opj_common_ptr cinfo = jp2->cinfo;
+ opj_write_bytes(l_current_data_ptr, l_ftyp_size,4); /* box size */
+ l_current_data_ptr += 4;
- jp2_read_boxhdr(cinfo, cio, &box);
- do {
- if(JP2_JP2C != box.type) {
- cio_skip(cio, box.length - 8);
- jp2_read_boxhdr(cinfo, cio, &box);
- }
- } while(JP2_JP2C != box.type);
+ opj_write_bytes(l_current_data_ptr, JP2_FTYP,4); /* FTYP */
+ l_current_data_ptr += 4;
- *j2k_codestream_offset = cio_tell(cio);
- *j2k_codestream_length = box.length - 8;
+ opj_write_bytes(l_current_data_ptr, jp2->brand,4); /* BR */
+ l_current_data_ptr += 4;
- return OPJ_TRUE;
-}
+ opj_write_bytes(l_current_data_ptr, jp2->minversion,4); /* MinV */
+ l_current_data_ptr += 4;
-static void jp2_write_jp(opj_cio_t *cio) {
- opj_jp2_box_t box;
-
- box.init_pos = cio_tell(cio);
- cio_skip(cio, 4);
- cio_write(cio, JP2_JP, 4); /* JP2 signature */
- cio_write(cio, 0x0d0a870a, 4);
+ for (i = 0; i < jp2->numcl; i++) {
+ opj_write_bytes(l_current_data_ptr, jp2->cl[i],4); /* CL */
+ }
+
+ l_result = (opj_stream_write_data(cio,l_ftyp_data,l_ftyp_size,p_manager) == l_ftyp_size);
+ if (! l_result)
+ {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Error while writting ftyp data to stream\n");
+ }
- box.length = cio_tell(cio) - box.init_pos;
- cio_seek(cio, box.init_pos);
- cio_write(cio, box.length, 4); /* L */
- cio_seek(cio, box.init_pos + box.length);
+ opj_free(l_ftyp_data);
+
+ return l_result;
}
-static opj_bool jp2_read_jp(opj_jp2_t *jp2, opj_cio_t *cio) {
- opj_jp2_box_t box;
-
- opj_common_ptr cinfo = jp2->cinfo;
-
- jp2_read_boxhdr(cinfo, cio, &box);
- if (JP2_JP != box.type) {
- opj_event_msg(cinfo, EVT_ERROR, "Expected JP Marker\n");
+/**
+ * Writes the Jpeg2000 codestream Header box - JP2C Header box.
+ *
+ * @param cio the stream to write data to.
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_manager user event manager.
+ *
+ * @return true if writting was successful.
+*/
+opj_bool opj_jp2_write_jp2c(opj_jp2_v2_t *jp2,
+ opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager )
+{
+ OPJ_OFF_T j2k_codestream_exit;
+ OPJ_BYTE l_data_header [8];
+
+ // preconditions
+ assert(jp2 != 00);
+ assert(cio != 00);
+ assert(p_manager != 00);
+ assert(opj_stream_has_seek(cio));
+
+ j2k_codestream_exit = opj_stream_tell(cio);
+ opj_write_bytes(l_data_header,
+ (OPJ_UINT32) (j2k_codestream_exit - jp2->j2k_codestream_offset),
+ 4); /* size of codestream */
+ opj_write_bytes(l_data_header + 4,JP2_JP2C,4); /* JP2C */
+
+ if (! opj_stream_seek(cio,jp2->j2k_codestream_offset,p_manager)) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
return OPJ_FALSE;
}
- if (0x0d0a870a != cio_read(cio, 4)) {
- opj_event_msg(cinfo, EVT_ERROR, "Error with JP Marker\n");
+
+ if (opj_stream_write_data(cio,l_data_header,8,p_manager) != 8) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
return OPJ_FALSE;
}
- if (cio_tell(cio) - box.init_pos != box.length) {
- opj_event_msg(cinfo, EVT_ERROR, "Error with JP Box size\n");
+
+ if (! opj_stream_seek(cio,j2k_codestream_exit,p_manager)) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
return OPJ_FALSE;
}
return OPJ_TRUE;
}
+/**
+ * Writes a jpeg2000 file signature box.
+ *
+ * @param cio the stream to write data to.
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_manager the user event manager.
+ *
+ * @return true if writting was successful.
+ */
+opj_bool opj_jp2_write_jp( opj_jp2_v2_t *jp2,
+ opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager )
+{
+ /* 12 bytes will be read */
+ unsigned char l_signature_data [12];
+
+ // preconditions
+ assert(cio != 00);
+ assert(jp2 != 00);
+ assert(p_manager != 00);
-static opj_bool jp2_read_struct(opj_jp2_t *jp2, opj_cio_t *cio,
- opj_jp2_color_t *color) {
- if (!jp2_read_jp(jp2, cio))
- return OPJ_FALSE;
- if (!jp2_read_ftyp(jp2, cio))
- return OPJ_FALSE;
- if (!jp2_read_jp2h(jp2, cio, color))
- return OPJ_FALSE;
- if (!jp2_read_jp2c(jp2, cio, &jp2->j2k_codestream_length, &jp2->j2k_codestream_offset))
- return OPJ_FALSE;
+ /* write box length */
+ opj_write_bytes(l_signature_data,12,4);
+ /* writes box type */
+ opj_write_bytes(l_signature_data+4,JP2_JP,4);
+ /* writes magic number*/
+ opj_write_bytes(l_signature_data+8,0x0d0a870a,4);
+ if (opj_stream_write_data(cio,l_signature_data,12,p_manager) != 12) {
+ return OPJ_FALSE;
+ }
+
return OPJ_TRUE;
}
-
static int write_fidx( int offset_jp2c, int length_jp2c, int offset_idx, int length_idx, opj_cio_t *cio)
{
int len, lenp;
/* JP2 decoder interface */
/* ----------------------------------------------------------------------- */
-opj_jp2_t* jp2_create_decompress(opj_common_ptr cinfo) {
- opj_jp2_t *jp2 = (opj_jp2_t*) opj_calloc(1, sizeof(opj_jp2_t));
- if(jp2) {
- jp2->cinfo = cinfo;
- /* create the J2K codec */
- jp2->j2k = j2k_create_decompress(cinfo);
- if(jp2->j2k == NULL) {
- jp2_destroy_decompress(jp2);
- return NULL;
- }
- }
- return jp2;
-}
-
-void jp2_destroy_decompress(opj_jp2_t *jp2) {
- if(jp2) {
- /* destroy the J2K codec */
- j2k_destroy_decompress(jp2->j2k);
-
- if(jp2->comps) {
- opj_free(jp2->comps);
- }
- if(jp2->cl) {
- opj_free(jp2->cl);
- }
- opj_free(jp2);
- }
-}
-
-void jp2_setup_decoder(opj_jp2_t *jp2, opj_dparameters_t *parameters) {
- /* setup the J2K codec */
- j2k_setup_decoder(jp2->j2k, parameters);
- /* further JP2 initializations go here */
-}
-void jp2_setup_decoder_v2(opj_jp2_v2_t *jp2, opj_dparameters_t *parameters)
+void opj_jp2_setup_decoder(opj_jp2_v2_t *jp2, opj_dparameters_t *parameters)
{
/* setup the J2K codec */
- j2k_setup_decoder_v2(jp2->j2k, parameters);
+ opj_j2k_setup_decoder(jp2->j2k, parameters);
/* further JP2 initializations go here */
jp2->color.jp2_has_colr = 0;
+ jp2->ignore_pclr_cmap_cdef = parameters->flags & OPJ_DPARAMETERS_IGNORE_PCLR_CMAP_CDEF_FLAG;
}
/* JP2 encoder interface */
/* ----------------------------------------------------------------------- */
-opj_jp2_t* jp2_create_compress(opj_common_ptr cinfo) {
- opj_jp2_t *jp2 = (opj_jp2_t*)opj_malloc(sizeof(opj_jp2_t));
- if(jp2) {
- jp2->cinfo = cinfo;
- /* create the J2K codec */
- jp2->j2k = j2k_create_compress(cinfo);
- if(jp2->j2k == NULL) {
- jp2_destroy_compress(jp2);
- return NULL;
- }
- }
- return jp2;
-}
-
-void jp2_destroy_compress(opj_jp2_t *jp2) {
- if(jp2) {
- /* destroy the J2K codec */
- j2k_destroy_compress(jp2->j2k);
-
- if(jp2->comps) {
- opj_free(jp2->comps);
- }
- if(jp2->cl) {
- opj_free(jp2->cl);
- }
- opj_free(jp2);
- }
-}
-
-void jp2_setup_encoder(opj_jp2_t *jp2, opj_cparameters_t *parameters, opj_image_t *image) {
- int i;
+void opj_jp2_setup_encoder( opj_jp2_v2_t *jp2,
+ opj_cparameters_t *parameters,
+ opj_image_t *image,
+ opj_event_mgr_t * p_manager)
+{
+ OPJ_UINT32 i;
int depth_0, sign;
if(!jp2 || !parameters || !image)
/* Check if number of components respects standard */
if (image->numcomps < 1 || image->numcomps > 16384) {
- opj_event_msg(jp2->cinfo, EVT_ERROR, "Invalid number of components specified while setting up JP2 encoder\n");
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Invalid number of components specified while setting up JP2 encoder\n");
return;
}
- j2k_setup_encoder(jp2->j2k, parameters, image);
+ j2k_setup_encoder_v2(jp2->j2k, parameters, image, p_manager );
/* setup the JP2 codec */
/* ------------------- */
jp2->IPR = 0; /* IPR, no intellectual property */
/* BitsPerComponent box */
-
for (i = 0; i < image->numcomps; i++) {
jp2->comps[i].bpcc = image->comps[i].prec - 1 + (image->comps[i].sgnd << 7);
}
- jp2->meth = 1;
- if (image->color_space == 1)
- jp2->enumcs = 16; /* sRGB as defined by IEC 61966-2.1 */
- else if (image->color_space == 2)
- jp2->enumcs = 17; /* greyscale */
- else if (image->color_space == 3)
- jp2->enumcs = 18; /* YUV */
+
+ /* Colour Specification box */
+ if ((image->numcomps == 1 || image->numcomps == 3) && (jp2->bpc != 255)) {
+ jp2->meth = 1; /* METH: Enumerated colourspace */
+ } else {
+ jp2->meth = 2; /* METH: Restricted ICC profile */
+ }
+ if (jp2->meth == 1) {
+ if (image->color_space == 1)
+ jp2->enumcs = 16; /* sRGB as defined by IEC 61966�2�1 */
+ else if (image->color_space == 2)
+ jp2->enumcs = 17; /* greyscale */
+ else if (image->color_space == 3)
+ jp2->enumcs = 18; /* YUV */
+ } else {
+ jp2->enumcs = 0; /* PROFILE (??) */
+ }
jp2->precedence = 0; /* PRECEDENCE */
jp2->approx = 0; /* APPROX */
- jp2->jpip_on = parameters->jpip_on;
+ // jp2->jpip_on = parameters->jpip_on;
}
-opj_bool opj_jp2_encode(opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image, opj_codestream_info_t *cstr_info) {
-
- int pos_iptr, pos_cidx, pos_jp2c, len_jp2c, len_cidx, end_pos, pos_fidx, len_fidx;
- /* JP2 encoding */
+opj_bool opj_jp2_encode(opj_jp2_v2_t *jp2,
+ opj_stream_private_t *stream,
+ opj_event_mgr_t * p_manager)
+{
+ return j2k_encode_v2(jp2->j2k, stream, p_manager);
+}
- /* JPEG 2000 Signature box */
- jp2_write_jp(cio);
- /* File Type box */
- jp2_write_ftyp(jp2, cio);
- /* JP2 Header box */
- jp2_write_jp2h(jp2, cio);
- if( jp2->jpip_on){
- pos_iptr = cio_tell( cio);
- cio_skip( cio, 24); /* IPTR further ! */
-
- pos_jp2c = cio_tell( cio);
- }
+/**
+ * Ends the decompression procedures and possibiliy add data to be read after the
+ * codestream.
+ */
+opj_bool opj_jp2_end_decompress(opj_jp2_v2_t *jp2,
+ opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager
+ )
+{
+ /* preconditions */
+ assert(jp2 != 00);
+ assert(cio != 00);
+ assert(p_manager != 00);
- /* J2K encoding */
- if(!(len_jp2c = jp2_write_jp2c( jp2, cio, image, cstr_info))){
- opj_event_msg(jp2->cinfo, EVT_ERROR, "Failed to encode image\n");
- return OPJ_FALSE;
- }
+ /* customization of the end encoding */
+ opj_jp2_setup_end_header_reading(jp2);
- if( jp2->jpip_on){
- pos_cidx = cio_tell( cio);
-
- len_cidx = write_cidx( pos_jp2c+8, cio, image, *cstr_info, len_jp2c-8);
-
- pos_fidx = cio_tell( cio);
- len_fidx = write_fidx( pos_jp2c, len_jp2c, pos_cidx, len_cidx, cio);
-
- end_pos = cio_tell( cio);
-
- cio_seek( cio, pos_iptr);
- write_iptr( pos_fidx, len_fidx, cio);
- cio_seek( cio, end_pos);
+ /* write header */
+ if (! opj_jp2_exec (jp2,jp2->m_procedure_list,cio,p_manager)) {
+ return OPJ_FALSE;
}
- return OPJ_TRUE;
+ return j2k_end_decompress(jp2->j2k, cio, p_manager);
}
/**
- * Ends the decompression procedures and possibiliy add data to be read after the
+ * Ends the compression procedures and possibility add data to be read after the
* codestream.
*/
-opj_bool jp2_end_decompress(opj_jp2_v2_t *jp2, opj_stream_private_t *cio, opj_event_mgr_t * p_manager)
+opj_bool opj_jp2_end_compress( opj_jp2_v2_t *jp2,
+ opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager
+ )
{
- // preconditions
+ /* preconditions */
assert(jp2 != 00);
assert(cio != 00);
assert(p_manager != 00);
/* customization of the end encoding */
- jp2_setup_end_header_reading(jp2);
+ opj_jp2_setup_end_header_writting(jp2);
- /* write header */
- if (! jp2_exec (jp2,jp2->m_procedure_list,cio,p_manager)) {
+ if (! j2k_end_compress(jp2->j2k,cio,p_manager)) {
return OPJ_FALSE;
}
- return j2k_end_decompress(jp2->j2k, cio, p_manager);
+ /* write header */
+ return opj_jp2_exec(jp2,jp2->m_procedure_list,cio,p_manager);
+}
+
+
+/**
+ * Sets up the procedures to do on writing header after the codestream.
+ * Developers wanting to extend the library can add their own writing procedures.
+ */
+void opj_jp2_setup_end_header_writting (opj_jp2_v2_t *jp2)
+{
+ /* preconditions */
+ assert(jp2 != 00);
+
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_write_jp2c );
+ /* DEVELOPER CORNER, add your custom procedures */
}
/**
* Sets up the procedures to do on reading header after the codestream.
- * Developpers wanting to extend the library can add their own writting procedures.
+ * Developers wanting to extend the library can add their own writing procedures.
*/
-void jp2_setup_end_header_reading (opj_jp2_v2_t *jp2)
+void opj_jp2_setup_end_header_reading (opj_jp2_v2_t *jp2)
{
- // preconditions
+ /* preconditions */
assert(jp2 != 00);
- opj_procedure_list_add_procedure(jp2->m_procedure_list,(void*)jp2_read_header_procedure );
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_read_header_procedure );
/* DEVELOPER CORNER, add your custom procedures */
}
+/**
+ * The default validation procedure without any extension.
+ *
+ * @param jp2 the jpeg2000 codec to validate.
+ * @param cio the input stream to validate.
+ * @param p_manager the user event manager.
+ *
+ * @return true if the parameters are correct.
+ */
+opj_bool opj_jp2_default_validation ( opj_jp2_v2_t * jp2,
+ opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager
+ )
+{
+ opj_bool l_is_valid = OPJ_TRUE;
+ unsigned int i;
+
+ /* preconditions */
+ assert(jp2 != 00);
+ assert(cio != 00);
+ assert(p_manager != 00);
+
+ /* JPEG2000 codec validation */
+ /*TODO*/
+
+ /* STATE checking */
+ /* make sure the state is at 0 */
+ l_is_valid &= (jp2->jp2_state == JP2_STATE_NONE);
+
+ /* make sure not reading a jp2h ???? WEIRD */
+ l_is_valid &= (jp2->jp2_img_state == JP2_IMG_STATE_NONE);
+
+ /* POINTER validation */
+ /* make sure a j2k codec is present */
+ l_is_valid &= (jp2->j2k != 00);
+
+ /* make sure a procedure list is present */
+ l_is_valid &= (jp2->m_procedure_list != 00);
+
+ /* make sure a validation list is present */
+ l_is_valid &= (jp2->m_validation_list != 00);
+
+ /* PARAMETER VALIDATION */
+ /* number of components */
+ l_is_valid &= (jp2->numcl > 0);
+ /* width */
+ l_is_valid &= (jp2->h > 0);
+ /* height */
+ l_is_valid &= (jp2->w > 0);
+ /* precision */
+ for (i = 0; i < jp2->numcomps; ++i) {
+ l_is_valid &= (jp2->comps[i].bpcc > 0);
+ }
+
+ /* METH */
+ l_is_valid &= ((jp2->meth > 0) && (jp2->meth < 3));
+
+ /* stream validation */
+ /* back and forth is needed */
+ l_is_valid &= opj_stream_has_seek(cio);
+
+ return l_is_valid;
+}
/**
* Reads a jpeg2000 file header structure.
*
- * @param cio the stream to read data from.
+ * @param stream the stream to read data from.
* @param jp2 the jpeg2000 file header structure.
* @param p_manager the user event manager.
*
* @return true if the box is valid.
*/
-opj_bool jp2_read_header_procedure(
- opj_jp2_v2_t *jp2,
- opj_stream_private_t *cio,
- opj_event_mgr_t * p_manager)
+static opj_bool opj_jp2_read_header_procedure( opj_jp2_v2_t *jp2,
+ opj_stream_private_t *stream,
+ opj_event_mgr_t * p_manager
+ )
{
opj_jp2_box_t box;
OPJ_UINT32 l_nb_bytes_read;
OPJ_UINT32 l_current_data_size;
unsigned char * l_current_data = 00;
- // preconditions
- assert(cio != 00);
+ /* preconditions */
+ assert(stream != 00);
assert(jp2 != 00);
assert(p_manager != 00);
}
memset(l_current_data, 0 , l_last_data_size);
- while (jp2_read_boxhdr_v2(&box,&l_nb_bytes_read,cio,p_manager)) {
- // is it the codestream box ?
+ while (opj_jp2_read_boxhdr(&box,&l_nb_bytes_read,stream,p_manager)) {
+ /* is it the codestream box ? */
if (box.type == JP2_JP2C) {
if (jp2->jp2_state & JP2_STATE_HEADER) {
jp2->jp2_state |= JP2_STATE_CODESTREAM;
return OPJ_FALSE;
}
- l_current_handler = jp2_find_handler(box.type);
+ l_current_handler = opj_jp2_find_handler(box.type);
l_current_data_size = box.length - l_nb_bytes_read;
if (l_current_handler != 00) {
if (l_current_data_size > l_last_data_size) {
l_current_data = (unsigned char*)opj_realloc(l_current_data,l_current_data_size);
+ if (!l_current_data){
+ opj_free(l_current_data);
+ return OPJ_FALSE;
+ }
l_last_data_size = l_current_data_size;
}
- l_nb_bytes_read = opj_stream_read_data(cio,l_current_data,l_current_data_size,p_manager);
+ l_nb_bytes_read = opj_stream_read_data(stream,l_current_data,l_current_data_size,p_manager);
if (l_nb_bytes_read != l_current_data_size) {
opj_event_msg_v2(p_manager, EVT_ERROR, "Problem with reading JPEG2000 box, stream error\n");
return OPJ_FALSE;
}
else {
jp2->jp2_state |= JP2_STATE_UNKNOWN;
- if (opj_stream_skip(cio,l_current_data_size,p_manager) != l_current_data_size) {
+ if (opj_stream_skip(stream,l_current_data_size,p_manager) != l_current_data_size) {
opj_event_msg_v2(p_manager, EVT_ERROR, "Problem with skipping JPEG2000 box, stream error\n");
opj_free(l_current_data);
return OPJ_FALSE;
*
* @param p_procedure_list the list of procedures to execute
* @param jp2 the jpeg2000 file codec to execute the procedures on.
- * @param cio the stream to execute the procedures on.
+ * @param stream the stream to execute the procedures on.
* @param p_manager the user manager.
*
* @return true if all the procedures were successfully executed.
*/
-opj_bool jp2_exec (
- opj_jp2_v2_t * jp2,
- opj_procedure_list_t * p_procedure_list,
- opj_stream_private_t *cio,
- opj_event_mgr_t * p_manager
- )
+static opj_bool opj_jp2_exec ( opj_jp2_v2_t * jp2,
+ opj_procedure_list_t * p_procedure_list,
+ opj_stream_private_t *stream,
+ opj_event_mgr_t * p_manager
+ )
+
{
opj_bool (** l_procedure) (opj_jp2_v2_t * jp2, opj_stream_private_t *, opj_event_mgr_t *) = 00;
opj_bool l_result = OPJ_TRUE;
OPJ_UINT32 l_nb_proc, i;
- // preconditions
+ /* preconditions */
assert(p_procedure_list != 00);
assert(jp2 != 00);
- assert(cio != 00);
+ assert(stream != 00);
assert(p_manager != 00);
l_nb_proc = opj_procedure_list_get_nb_procedures(p_procedure_list);
l_procedure = (opj_bool (**) (opj_jp2_v2_t * jp2, opj_stream_private_t *, opj_event_mgr_t *)) opj_procedure_list_get_first_procedure(p_procedure_list);
for (i=0;i<l_nb_proc;++i) {
- l_result = l_result && (*l_procedure) (jp2,cio,p_manager);
+ l_result = l_result && (*l_procedure) (jp2,stream,p_manager);
++l_procedure;
}
- // and clear the procedure list at the end.
+ /* and clear the procedure list at the end. */
opj_procedure_list_clear(p_procedure_list);
return l_result;
}
+/**
+ * Starts a compression scheme, i.e. validates the codec parameters, writes the header.
+ *
+ * @param jp2 the jpeg2000 file codec.
+ * @param cio the stream object.
+ *
+ * @return true if the codec is valid.
+ */
+opj_bool opj_jp2_start_compress(opj_jp2_v2_t *jp2,
+ opj_stream_private_t *stream,
+ opj_image_t * p_image,
+ opj_event_mgr_t * p_manager
+ )
+{
+ /* preconditions */
+ assert(jp2 != 00);
+ assert(stream != 00);
+ assert(p_manager != 00);
+
+ /* customization of the validation */
+ opj_jp2_setup_encoding_validation (jp2);
+
+ /* validation of the parameters codec */
+ if (! opj_jp2_exec(jp2,jp2->m_validation_list,stream,p_manager)) {
+ return OPJ_FALSE;
+ }
+
+ /* customization of the encoding */
+ opj_jp2_setup_header_writting(jp2);
+
+ /* write header */
+ if (! opj_jp2_exec (jp2,jp2->m_procedure_list,stream,p_manager)) {
+ return OPJ_FALSE;
+ }
+
+ return j2k_start_compress(jp2->j2k,stream,p_image,p_manager);
+}
/**
* Finds the execution function related to the given box id.
*
* @return the given handler or 00 if it could not be found.
*/
-const opj_jp2_header_handler_t * jp2_find_handler (int p_id)
+const opj_jp2_header_handler_t * opj_jp2_find_handler (OPJ_UINT32 p_id)
{
OPJ_UINT32 i, l_handler_size = sizeof(jp2_header) / sizeof(opj_jp2_header_handler_t);
*
* @return the given handler or 00 if it could not be found.
*/
-static const opj_jp2_header_handler_t * jp2_img_find_handler (
- int p_id
- )
+static const opj_jp2_header_handler_t * opj_jp2_img_find_handler (OPJ_UINT32 p_id)
{
OPJ_UINT32 i, l_handler_size = sizeof(jp2_img_header) / sizeof(opj_jp2_header_handler_t);
for (i=0;i<l_handler_size;++i)
*
* @return true if the file signature box is valid.
*/
-opj_bool jp2_read_jp_v2(
- opj_jp2_v2_t *jp2,
- unsigned char * p_header_data,
- unsigned int p_header_size,
- opj_event_mgr_t * p_manager
- )
+static opj_bool opj_jp2_read_jp(opj_jp2_v2_t *jp2,
+ OPJ_BYTE * p_header_data,
+ OPJ_UINT32 p_header_size,
+ opj_event_mgr_t * p_manager
+ )
+
{
unsigned int l_magic_number;
- // preconditions
+ /* preconditions */
assert(p_header_data != 00);
assert(jp2 != 00);
assert(p_manager != 00);
return OPJ_FALSE;
}
- // rearrange data
+ /* rearrange data */
opj_read_bytes(p_header_data,&l_magic_number,4);
if (l_magic_number != 0x0d0a870a ) {
opj_event_msg_v2(p_manager, EVT_ERROR, "Error with JP Signature : bad magic number\n");
*
* @return true if the FTYP box is valid.
*/
-opj_bool jp2_read_ftyp_v2(
- opj_jp2_v2_t *jp2,
- unsigned char * p_header_data,
- unsigned int p_header_size,
- opj_event_mgr_t * p_manager
- )
+static opj_bool opj_jp2_read_ftyp( opj_jp2_v2_t *jp2,
+ OPJ_BYTE * p_header_data,
+ OPJ_UINT32 p_header_size,
+ opj_event_mgr_t * p_manager
+ )
{
OPJ_UINT32 i, l_remaining_bytes;
- // preconditions
+ /* preconditions */
assert(p_header_data != 00);
assert(jp2 != 00);
assert(p_manager != 00);
return OPJ_TRUE;
}
+/**
+ * Skips the Jpeg2000 Codestream Header box - JP2C Header box.
+ *
+ * @param cio the stream to write data to.
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_manager user event manager.
+ *
+ * @return true if writting was successful.
+*/
+opj_bool opj_jp2_skip_jp2c( opj_jp2_v2_t *jp2,
+ opj_stream_private_t *stream,
+ opj_event_mgr_t * p_manager )
+{
+ /* preconditions */
+ assert(jp2 != 00);
+ assert(stream != 00);
+ assert(p_manager != 00);
+
+ jp2->j2k_codestream_offset = opj_stream_tell(stream);
+
+ if (opj_stream_skip(stream,8,p_manager) != 8) {
+ return OPJ_FALSE;
+ }
+
+ return OPJ_TRUE;
+}
/**
* Reads the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).
*
* @return true if the JP2 Header box was successfully reconized.
*/
-opj_bool jp2_read_jp2h_v2(
- opj_jp2_v2_t *jp2,
- unsigned char * p_header_data,
- unsigned int p_header_size,
- opj_event_mgr_t * p_manager
- )
+static opj_bool opj_jp2_read_jp2h( opj_jp2_v2_t *jp2,
+ OPJ_BYTE *p_header_data,
+ OPJ_UINT32 p_header_size,
+ opj_event_mgr_t * p_manager
+ )
{
OPJ_UINT32 l_box_size=0, l_current_data_size = 0;
opj_jp2_box_t box;
const opj_jp2_header_handler_t * l_current_handler;
- // preconditions
+ /* preconditions */
assert(p_header_data != 00);
assert(jp2 != 00);
assert(p_manager != 00);
/* iterate while remaining data */
while (p_header_size > 0) {
- if (! jp2_read_boxhdr_char(&box,p_header_data,&l_box_size,p_header_size, p_manager)) {
+ if (! opj_jp2_read_boxhdr_char(&box,p_header_data,&l_box_size,p_header_size, p_manager)) {
opj_event_msg_v2(p_manager, EVT_ERROR, "Stream error while reading JP2 Header box\n");
return OPJ_FALSE;
}
return OPJ_FALSE;
}
- l_current_handler = jp2_img_find_handler(box.type);
+ l_current_handler = opj_jp2_img_find_handler(box.type);
l_current_data_size = box.length - l_box_size;
p_header_data += l_box_size;
*
* @return true if the box is reconized, false otherwise
*/
-static opj_bool jp2_read_boxhdr_char(
- opj_jp2_box_t *box,
- OPJ_BYTE * p_data,
- OPJ_UINT32 * p_number_bytes_read,
- OPJ_UINT32 p_box_max_size,
- opj_event_mgr_t * p_manager
- )
+opj_bool opj_jp2_read_boxhdr_char( opj_jp2_box_t *box,
+ OPJ_BYTE * p_data,
+ OPJ_UINT32 * p_number_bytes_read,
+ OPJ_UINT32 p_box_max_size,
+ opj_event_mgr_t * p_manager
+ )
{
OPJ_UINT32 l_value;
- // preconditions
+ /* preconditions */
assert(p_data != 00);
assert(box != 00);
assert(p_number_bytes_read != 00);
*p_number_bytes_read = 8;
- // do we have a "special very large box ?"
- // read then the XLBox
+ /* do we have a "special very large box ?" */
+ /* read then the XLBox */
if (box->length == 1) {
unsigned int l_xl_part_size;
*
* @return true if the box is valid.
*/
-opj_bool jp2_read_header( struct opj_stream_private *p_stream,
- opj_jp2_v2_t *jp2,
- opj_image_t** p_image,
- struct opj_event_mgr * p_manager
- )
+opj_bool opj_jp2_read_header( opj_stream_private_t *p_stream,
+ opj_jp2_v2_t *jp2,
+ opj_image_t ** p_image,
+ opj_event_mgr_t * p_manager
+ )
{
/* preconditions */
assert(jp2 != 00);
assert(p_manager != 00);
/* customization of the validation */
- jp2_setup_decoding_validation (jp2);
+ opj_jp2_setup_decoding_validation (jp2);
/* customization of the encoding */
- jp2_setup_header_reading(jp2);
+ opj_jp2_setup_header_reading(jp2);
/* validation of the parameters codec */
- if (! jp2_exec(jp2,jp2->m_validation_list,p_stream,p_manager)) {
+ if (! opj_jp2_exec(jp2,jp2->m_validation_list,p_stream,p_manager)) {
return OPJ_FALSE;
}
/* read header */
- if (! jp2_exec (jp2,jp2->m_procedure_list,p_stream,p_manager)) {
+ if (! opj_jp2_exec (jp2,jp2->m_procedure_list,p_stream,p_manager)) {
return OPJ_FALSE;
}
p_manager);
}
+/**
+ * Sets up the validation ,i.e. adds the procedures to launch to make sure the codec parameters
+ * are valid. Developers wanting to extend the library can add their own validation procedures.
+ */
+void opj_jp2_setup_encoding_validation (opj_jp2_v2_t *jp2)
+{
+ /* preconditions */
+ assert(jp2 != 00);
+
+ opj_procedure_list_add_procedure(jp2->m_validation_list, (opj_procedure)opj_jp2_default_validation);
+ /* DEVELOPER CORNER, add your custom validation procedure */
+}
+
/**
* Sets up the validation ,i.e. adds the procedures to lauch to make sure the codec parameters
* are valid. Developpers wanting to extend the library can add their own validation procedures.
*/
-void jp2_setup_decoding_validation (opj_jp2_v2_t *jp2)
+void opj_jp2_setup_decoding_validation (opj_jp2_v2_t *jp2)
{
- // preconditions
+ /* preconditions */
assert(jp2 != 00);
/* DEVELOPER CORNER, add your custom validation procedure */
}
+/**
+ * Sets up the procedures to do on writting header.
+ * Developers wanting to extend the library can add their own writing procedures.
+ */
+void opj_jp2_setup_header_writting (opj_jp2_v2_t *jp2)
+{
+ /* preconditions */
+ assert(jp2 != 00);
+
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_write_jp );
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_write_ftyp );
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_write_jp2h );
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_skip_jp2c );
+
+ /* DEVELOPER CORNER, insert your custom procedures */
+
+}
+
/**
* Sets up the procedures to do on reading header.
* Developpers wanting to extend the library can add their own writting procedures.
*/
-void jp2_setup_header_reading (opj_jp2_v2_t *jp2)
+void opj_jp2_setup_header_reading (opj_jp2_v2_t *jp2)
{
- // preconditions
+ /* preconditions */
assert(jp2 != 00);
- opj_procedure_list_add_procedure(jp2->m_procedure_list,(void*)jp2_read_header_procedure );
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_read_header_procedure );
/* DEVELOPER CORNER, add your custom procedures */
}
* @param p_stream the stream to write data to.
* @param p_manager the user event manager.
*/
-opj_bool jp2_read_tile_header( opj_jp2_v2_t * p_jp2,
- OPJ_UINT32 * p_tile_index,
- OPJ_UINT32 * p_data_size,
- OPJ_INT32 * p_tile_x0, OPJ_INT32 * p_tile_y0,
- OPJ_INT32 * p_tile_x1, OPJ_INT32 * p_tile_y1,
- OPJ_UINT32 * p_nb_comps,
- opj_bool * p_go_on,
- opj_stream_private_t *p_stream,
- opj_event_mgr_t * p_manager )
+opj_bool opj_jp2_read_tile_header ( opj_jp2_v2_t * p_jp2,
+ OPJ_UINT32 * p_tile_index,
+ OPJ_UINT32 * p_data_size,
+ OPJ_INT32 * p_tile_x0,
+ OPJ_INT32 * p_tile_y0,
+ OPJ_INT32 * p_tile_x1,
+ OPJ_INT32 * p_tile_y1,
+ OPJ_UINT32 * p_nb_comps,
+ opj_bool * p_go_on,
+ opj_stream_private_t *p_stream,
+ opj_event_mgr_t * p_manager
+ )
{
return j2k_read_tile_header(p_jp2->j2k,
p_tile_index,
p_manager);
}
+/**
+ * Writes a tile.
+ * @param p_j2k the jpeg2000 codec.
+ * @param p_stream the stream to write data to.
+ * @param p_manager the user event manager.
+ */
+opj_bool opj_jp2_write_tile ( opj_jp2_v2_t *p_jp2,
+ OPJ_UINT32 p_tile_index,
+ OPJ_BYTE * p_data,
+ OPJ_UINT32 p_data_size,
+ opj_stream_private_t *p_stream,
+ opj_event_mgr_t * p_manager
+ )
+
+{
+ return j2k_write_tile (p_jp2->j2k,p_tile_index,p_data,p_data_size,p_stream,p_manager);
+}
+
/**
* Decode tile data.
* @param p_j2k the jpeg2000 codec.
* @param p_stream the stream to write data to.
* @param p_manager the user event manager.
*/
-opj_bool jp2_decode_tile (
- opj_jp2_v2_t * p_jp2,
- OPJ_UINT32 p_tile_index,
- OPJ_BYTE * p_data,
- OPJ_UINT32 p_data_size,
- opj_stream_private_t *p_stream,
- opj_event_mgr_t * p_manager
- )
+opj_bool opj_jp2_decode_tile ( opj_jp2_v2_t * p_jp2,
+ OPJ_UINT32 p_tile_index,
+ OPJ_BYTE * p_data,
+ OPJ_UINT32 p_data_size,
+ opj_stream_private_t *p_stream,
+ opj_event_mgr_t * p_manager
+ )
{
return j2k_decode_tile (p_jp2->j2k,p_tile_index,p_data,p_data_size,p_stream,p_manager);
}
*
* @param jp2 a jpeg2000 file decompressor.
*/
-void jp2_destroy(opj_jp2_v2_t *jp2)
+void opj_jp2_destroy(opj_jp2_v2_t *jp2)
{
if (jp2) {
/* destroy the J2K codec */
*
* @return true if the area could be set.
*/
-opj_bool jp2_set_decode_area( opj_jp2_v2_t *p_jp2,
- opj_image_t* p_image,
- OPJ_INT32 p_start_x, OPJ_INT32 p_start_y,
- OPJ_INT32 p_end_x, OPJ_INT32 p_end_y,
- struct opj_event_mgr * p_manager )
+opj_bool opj_jp2_set_decode_area( opj_jp2_v2_t *p_jp2,
+ opj_image_t* p_image,
+ OPJ_INT32 p_start_x, OPJ_INT32 p_start_y,
+ OPJ_INT32 p_end_x, OPJ_INT32 p_end_y,
+ opj_event_mgr_t * p_manager
+ )
{
return j2k_set_decode_area(p_jp2->j2k, p_image, p_start_x, p_start_y, p_end_x, p_end_y, p_manager);
}
+/**
+ * Get the decoded tile.
+ *
+ * @param jp2 the jpeg2000 codec.
+ * @param p_stream input_stream
+ * @param p_image output image. .
+ * @param p_manager the user event manager
+ * @param tile_index index of the tile we want decode
+ *
+ * @return true if succeed.
+ */
+opj_bool opj_jp2_get_tile( opj_jp2_v2_t *p_jp2,
+ opj_stream_private_t *p_stream,
+ opj_image_t* p_image,
+ opj_event_mgr_t * p_manager,
+ OPJ_UINT32 tile_index
+ )
+{
+ if (!p_image)
+ return OPJ_FALSE;
+
+ opj_event_msg_v2(p_manager, EVT_WARNING, "JP2 box which are after the codestream will not be read by this function.\n");
+
+ if (! j2k_get_tile(p_jp2->j2k, p_stream, p_image, p_manager, tile_index) ){
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Failed to decode the codestream in the JP2 file\n");
+ return OPJ_FALSE;
+ }
+
+ /* Set Image Color Space */
+ if (p_jp2->enumcs == 16)
+ p_image->color_space = CLRSPC_SRGB;
+ else if (p_jp2->enumcs == 17)
+ p_image->color_space = CLRSPC_GRAY;
+ else if (p_jp2->enumcs == 18)
+ p_image->color_space = CLRSPC_SYCC;
+ else
+ p_image->color_space = CLRSPC_UNKNOWN;
+
+ /* Apply the color space if needed */
+ if(p_jp2->color.jp2_cdef) {
+ jp2_apply_cdef(p_image, &(p_jp2->color));
+ }
+
+ if(p_jp2->color.jp2_pclr) {
+ /* Part 1, I.5.3.4: Either both or none : */
+ if( !p_jp2->color.jp2_pclr->cmap)
+ jp2_free_pclr(&(p_jp2->color));
+ else
+ jp2_apply_pclr(p_image, &(p_jp2->color));
+ }
+
+ if(p_jp2->color.icc_profile_buf) {
+ p_image->icc_profile_buf = p_jp2->color.icc_profile_buf;
+ p_image->icc_profile_len = p_jp2->color.icc_profile_len;
+ p_jp2->color.icc_profile_buf = NULL;
+ }
+
+ return OPJ_TRUE;
+}
+
+
+
/* ----------------------------------------------------------------------- */
/* JP2 encoder interface */
/* ----------------------------------------------------------------------- */
-opj_jp2_v2_t* jp2_create(opj_bool p_is_decoder)
+opj_jp2_v2_t* opj_jp2_create(opj_bool p_is_decoder)
{
opj_jp2_v2_t *jp2 = (opj_jp2_v2_t*)opj_malloc(sizeof(opj_jp2_v2_t));
if (jp2) {
- memset(jp2,0,sizeof(opj_jp2_t));
+ memset(jp2,0,sizeof(opj_jp2_v2_t));
/* create the J2K codec */
if (! p_is_decoder) {
jp2->j2k = j2k_create_compress_v2();
}
else {
- jp2->j2k = j2k_create_decompress_v2();
+ jp2->j2k = opj_j2k_create_decompress();
}
if (jp2->j2k == 00) {
- jp2_destroy(jp2);
+ opj_jp2_destroy(jp2);
return 00;
}
jp2->color.jp2_pclr = NULL;
jp2->color.jp2_has_colr = 0;
- // validation list creation
+ /* validation list creation */
jp2->m_validation_list = opj_procedure_list_create();
if (! jp2->m_validation_list) {
- jp2_destroy(jp2);
+ opj_jp2_destroy(jp2);
return 00;
}
- // execution list creation
+ /* execution list creation */
jp2->m_procedure_list = opj_procedure_list_create();
if (! jp2->m_procedure_list) {
- jp2_destroy(jp2);
+ opj_jp2_destroy(jp2);
return 00;
}
}
return j2k_get_cstr_info(p_jp2->j2k);
}
+opj_bool opj_jp2_set_decoded_resolution_factor(opj_jp2_v2_t *p_jp2,
+ OPJ_UINT32 res_factor,
+ opj_event_mgr_t * p_manager)
+{
+ return j2k_set_decoded_resolution_factor(p_jp2->j2k, res_factor, p_manager);
+}
+
projects / openjpeg.git / blobdiff