);
static void jp2_write_ihdr(opj_jp2_t *jp2, opj_cio_t *cio);
+
+/**
+ * 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 unsigned char * jp2_write_ihdr_v2( opj_jp2_v2_t *jp2,
+ unsigned int * p_nb_bytes_written );
+
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.
+*/
+static unsigned char * jp2_write_bpcc_v2( opj_jp2_v2_t *jp2,
+ unsigned int * p_nb_bytes_written );
+
static opj_bool jp2_read_bpcc(opj_jp2_t *jp2, opj_cio_t *cio);
/**
@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 unsigned char *jp2_write_colr_v2(opj_jp2_v2_t *jp2,
+ unsigned int * p_nb_bytes_written );
+
static void jp2_write_ftyp(opj_jp2_t *jp2, opj_cio_t *cio);
/**
Read the FTYP box - File type box
*/
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 jp2_write_ftyp_v2( opj_jp2_v2_t *jp2,
+ struct opj_stream_private *cio,
+ struct opj_event_mgr * 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 jp2_read_ftyp_v2( opj_jp2_v2_t *jp2,
+ unsigned char * p_header_data,
+ OPJ_UINT32 p_header_size,
+ struct opj_event_mgr * 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 jp2_skip_jp2c( opj_jp2_v2_t *jp2,
+ struct opj_stream_private *cio,
+ struct opj_event_mgr * p_manager );
/**
* Reads the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).
/*@}*/
+/**
+ * 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 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 const opj_jp2_header_handler_t * jp2_find_handler (int p_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 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 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 jp2_default_validation ( opj_jp2_v2_t * jp2,
+ struct opj_stream_private *cio,
+ struct opj_event_mgr * p_manager );
+
/**
* Finds the image execution function related to the given box id.
*
/* 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;
opj_event_mgr_t * p_manager
)
{
- // preconditions
+ /* preconditions */
assert(p_image_header_data != 00);
assert(jp2 != 00);
assert(p_manager != 00);
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);
}
cio_seek(cio, box.init_pos + box.length);
}
+/**
+ * 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 unsigned char * jp2_write_ihdr_v2( opj_jp2_v2_t *jp2,
+ unsigned int * p_nb_bytes_written )
+{
+ unsigned char * l_ihdr_data,* l_current_ihdr_ptr;
+
+ // preconditions
+ assert(jp2 != 00);
+ assert(p_nb_bytes_written != 00);
+
+ /* 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);
+
+ l_current_ihdr_ptr = l_ihdr_data;
+
+ opj_write_bytes(l_current_ihdr_ptr,22,4); /* write box size */
+ l_current_ihdr_ptr+=4;
+
+ 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) {
unsigned int i;
opj_jp2_box_t box;
}
+/**
+ * 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.
+*/
+unsigned char * jp2_write_bpcc_v2( opj_jp2_v2_t *jp2,
+ unsigned int * p_nb_bytes_written )
+{
+ unsigned int i;
+ /* 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);
+
+ 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);
+
+ l_current_bpcc_ptr = l_bpcc_data;
+
+ 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;
+
+ 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;
+ }
+
+ *p_nb_bytes_written = l_bpcc_size;
+
+ return l_bpcc_data;
+}
+
+
+
static opj_bool jp2_read_bpcc(opj_jp2_t *jp2, opj_cio_t *cio) {
unsigned int i;
opj_jp2_box_t box;
{
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;
cio_seek(cio, box.init_pos + box.length);
}
+/**
+ * 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.
+*/
+unsigned char *jp2_write_colr_v2( opj_jp2_v2_t *jp2,
+ unsigned int * 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;
+ }
+
+ 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;
+
+ 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 (??) */
+ }
+
+ *p_nb_bytes_written = l_colr_size;
+
+ return l_colr_data;
+}
+
static void jp2_free_pclr(opj_jp2_color_t *color)
{
opj_free(color->jp2_pclr->channel_sign);
OPJ_UINT16 i, j;
OPJ_UINT32 l_value;
- // preconditions
+ /* preconditions */
assert(p_pclr_header_data != 00);
assert(jp2 != 00);
assert(p_manager != 00);
for(j = 0; j < nr_entries; ++j) {
for(i = 0; i < nr_channels; ++i) {
- //*entries++ = cio_read(cio, channel_size[i]>>3);
+ /**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;
*entries = (OPJ_UINT32) l_value;
OPJ_BYTE i, nr_channels;
OPJ_UINT32 l_value;
- // preconditions
+ /* preconditions */
assert(jp2 != 00);
assert(p_cmap_header_data != 00);
assert(p_manager != 00);
unsigned short i;
OPJ_UINT32 l_value;
- // preconditions
+ /* preconditions */
assert(jp2 != 00);
assert(p_cdef_header_data != 00);
assert(p_manager != 00);
{
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;
jp2_read_boxhdr(cinfo, cio, &box);
continue;
}
- if(box.type == JP2_CDEF)
+ if(box.type == JP2_CDEF && !jp2->ignore_pclr_cmap_cdef)
{
if( !jp2_read_cdef(jp2, cio, &box, color))
{
jp2_read_boxhdr(cinfo, cio, &box);
continue;
}
- if(box.type == JP2_PCLR)
+ if(box.type == JP2_PCLR && !jp2->ignore_pclr_cmap_cdef)
{
if( !jp2_read_pclr(jp2, cio, &box, color))
{
jp2_read_boxhdr(cinfo, cio, &box);
continue;
}
- if(box.type == JP2_CMAP)
+ if(box.type == JP2_CMAP && !jp2->ignore_pclr_cmap_cdef)
{
if( !jp2_read_cmap(jp2, cio, &box, color))
{
opj_event_msg(cinfo, EVT_ERROR, "Failed to decode J2K image\n");
return NULL;
}
+
+ if (!jp2->ignore_pclr_cmap_cdef){
-/* Set Image Color Space */
+ /* Set Image Color Space */
if (jp2->enumcs == 16)
image->color_space = CLRSPC_SRGB;
else if (jp2->enumcs == 17)
color.icc_profile_buf = NULL;
image->icc_profile_len = color.icc_profile_len;
}
+ }
+
return image;
}/* opj_jp2_decode() */
cio_seek(cio, box.init_pos + box.length);
}
+/**
+ * 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 jp2_write_jp2h_v2( opj_jp2_v2_t *jp2,
+ opj_stream_private_t *cio,
+ 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;
+
+ int i, l_nb_pass;
+ /* size of data for super box*/
+ int l_jp2h_size = 8;
+ opj_bool l_result = OPJ_TRUE;
+
+ /* to store the data of the super box */
+ unsigned char l_jp2h_data [8];
+
+ // preconditions
+ assert(cio != 00);
+ assert(jp2 != 00);
+ assert(p_manager != 00);
+
+ memset(l_writers,0,sizeof(l_writers));
+
+ if (jp2->bpc == 255) {
+ l_nb_pass = 3;
+ l_writers[0].handler = jp2_write_ihdr_v2;
+ l_writers[1].handler = jp2_write_bpcc_v2;
+ l_writers[2].handler = jp2_write_colr_v2;
+ }
+ else {
+ l_nb_pass = 2;
+ l_writers[0].handler = jp2_write_ihdr_v2;
+ l_writers[1].handler = jp2_write_colr_v2;
+ }
+
+ /* 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;
+ }
+
+ l_jp2h_size += l_current_writer->m_size;
+ ++l_current_writer;
+ }
+
+ 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;
+ }
+
+ return OPJ_FALSE;
+ }
+
+ /* 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(cio,l_jp2h_data,8,p_manager) != 8) {
+ opj_event_msg(p_manager, EVT_ERROR, "Stream error while writting 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(cio,l_current_writer->m_data,l_current_writer->m_size,p_manager) != l_current_writer->m_size) {
+ opj_event_msg(p_manager, EVT_ERROR, "Stream error while writting JP2 Header box\n");
+ l_result = OPJ_FALSE;
+ break;
+ }
+ ++l_current_writer;
+ }
+ }
+
+ 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 l_result;
+}
+
static void jp2_write_ftyp(opj_jp2_t *jp2, opj_cio_t *cio) {
unsigned int i;
opj_jp2_box_t box;
cio_seek(cio, box.init_pos + box.length);
}
+/**
+ * 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 jp2_write_ftyp_v2( 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;
+
+ // preconditions
+ assert(cio != 00);
+ assert(jp2 != 00);
+ assert(p_manager != 00);
+
+ 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;
+ }
+
+ memset(l_ftyp_data,0,l_ftyp_size);
+
+ l_current_data_ptr = l_ftyp_data;
+
+ opj_write_bytes(l_current_data_ptr, l_ftyp_size,4); /* box size */
+ l_current_data_ptr += 4;
+
+ opj_write_bytes(l_current_data_ptr, JP2_FTYP,4); /* FTYP */
+ l_current_data_ptr += 4;
+
+ opj_write_bytes(l_current_data_ptr, jp2->brand,4); /* BR */
+ l_current_data_ptr += 4;
+
+ opj_write_bytes(l_current_data_ptr, jp2->minversion,4); /* MinV */
+ l_current_data_ptr += 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(p_manager, EVT_ERROR, "Error while writting ftyp data to stream\n");
+ }
+
+ opj_free(l_ftyp_data);
+
+ return l_result;
+}
+
static opj_bool jp2_read_ftyp(opj_jp2_t *jp2, opj_cio_t *cio) {
int i;
opj_jp2_box_t box;
cio_seek(cio, box.init_pos + box.length);
}
+/**
+ * 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 jp2_write_jp_v2( 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);
+
+ /* 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 opj_bool jp2_read_jp(opj_jp2_t *jp2, opj_cio_t *cio) {
opj_jp2_box_t box;
/* setup the J2K codec */
j2k_setup_decoder(jp2->j2k, parameters);
/* further JP2 initializations go here */
+ jp2->ignore_pclr_cmap_cdef = parameters->flags & OPJ_DPARAMETERS_IGNORE_PCLR_CMAP_CDEF_FLAG;
}
void jp2_setup_decoder_v2(opj_jp2_v2_t *jp2, opj_dparameters_t *parameters)
}
}
-void jp2_setup_encoder(opj_jp2_t *jp2, opj_cparameters_t *parameters, opj_image_t *image) {
+void jp2_setup_encoder( opj_jp2_v2_t *jp2,
+ opj_cparameters_t *parameters,
+ opj_image_t *image,
+ opj_event_mgr_t * p_manager) {
int i;
int depth_0, sign;
/* 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;
+ pos_jp2c = pos_iptr = -1; /* remove a warning */
/* JP2 encoding */
*/
opj_bool jp2_end_decompress(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);
return j2k_end_decompress(jp2->j2k, cio, p_manager);
}
+/**
+ * Ends the compression procedures and possibility add data to be read after the
+ * codestream.
+ */
+opj_bool jp2_end_compress( 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);
+
+ /* customization of the end encoding */
+ jp2_setup_end_header_writting(jp2);
+
+ if (! j2k_end_compress(jp2->j2k,cio,p_manager)) {
+ return OPJ_FALSE;
+ }
+
+ /* write header */
+ return 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 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)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)
{
- // 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)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 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.
OPJ_UINT32 l_current_data_size;
unsigned char * l_current_data = 00;
- // preconditions
+ /* preconditions */
assert(cio != 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 ?
+ /* is it the codestream box ? */
if (box.type == JP2_JP2C) {
if (jp2->jp2_state & JP2_STATE_HEADER) {
jp2->jp2_state |= JP2_STATE_CODESTREAM;
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;
}
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);
++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 jp2_start_compress(opj_jp2_v2_t *jp2,
+ struct opj_stream_private *cio,
+ opj_image_t * p_image,
+ struct opj_event_mgr * p_manager)
+{
+ /* preconditions */
+ assert(jp2 != 00);
+ assert(cio != 00);
+ assert(p_manager != 00);
+
+ /* customization of the validation */
+ jp2_setup_encoding_validation (jp2);
+
+ /* validation of the parameters codec */
+ if (! jp2_exec(jp2,jp2->m_validation_list,cio,p_manager)) {
+ return OPJ_FALSE;
+ }
+
+ /* customization of the encoding */
+ jp2_setup_header_writting(jp2);
+
+ /* write header */
+ if (! jp2_exec (jp2,jp2->m_procedure_list,cio,p_manager)) {
+ return OPJ_FALSE;
+ }
+
+ return j2k_start_compress(jp2->j2k,cio,p_image,p_manager);
+}
/**
* Finds the execution function related to the given box id.
{
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");
{
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 jp2_skip_jp2c( opj_jp2_v2_t *jp2,
+ struct opj_stream_private *stream,
+ struct opj_event_mgr * 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).
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);
{
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;
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 jp2_setup_encoding_validation (opj_jp2_v2_t *jp2)
+{
+ /* preconditions */
+ assert(jp2 != 00);
+
+ opj_procedure_list_add_procedure(jp2->m_validation_list, (opj_procedure)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)
{
- // 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 jp2_setup_header_writting (opj_jp2_v2_t *jp2)
+{
+ /* preconditions */
+ assert(jp2 != 00);
+
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)jp2_write_jp_v2 );
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)jp2_write_ftyp_v2 );
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)jp2_write_jp2h_v2 );
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)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)
{
- // 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)jp2_read_header_procedure );
/* DEVELOPER CORNER, add your custom procedures */
}
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 jp2_write_tile ( opj_jp2_v2_t *p_jp2,
+ OPJ_UINT32 p_tile_index,
+ OPJ_BYTE * p_data,
+ OPJ_UINT32 p_data_size,
+ struct opj_stream_private *p_stream,
+ struct opj_event_mgr * 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.
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);
return 00;
}
- // execution list creation
+ /* execution list creation */
jp2->m_procedure_list = opj_procedure_list_create();
if (! jp2->m_procedure_list) {
jp2_destroy(jp2);
projects / openjpeg.git / blobdiff