diff options
Diffstat (limited to 'extern/libopenjpeg/jp2.c')
| -rw-r--r-- | extern/libopenjpeg/jp2.c | 841 |
1 files changed, 670 insertions, 171 deletions
diff --git a/extern/libopenjpeg/jp2.c b/extern/libopenjpeg/jp2.c index b2831cfb0b5..5ae114c33b9 100644 --- a/extern/libopenjpeg/jp2.c +++ b/extern/libopenjpeg/jp2.c @@ -5,6 +5,7 @@ * Copyright (c) 2002-2003, Yannick Verschueren * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe * Copyright (c) 2005, Herve Drolon, FreeImage Team + * Copyright (c) 2010-2011, Kaori Hagihara * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -28,7 +29,6 @@ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ - #include "opj_includes.h" /** @defgroup JP2 JP2 - JPEG-2000 file format reader/writer */ @@ -44,7 +44,7 @@ Read box headers @param box @return Returns true if successful, returns false otherwise */ -static bool jp2_read_boxhdr(opj_common_ptr cinfo, opj_cio_t *cio, opj_jp2_box_t *box); +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 @@ -52,12 +52,11 @@ Read the IHDR box - Image Header box @param cio Input buffer stream @return Returns true if successful, returns false otherwise */ -static bool jp2_read_ihdr(opj_jp2_t *jp2, opj_cio_t *cio); +static opj_bool jp2_read_ihdr(opj_jp2_t *jp2, opj_cio_t *cio); 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 bool jp2_read_bpcc(opj_jp2_t *jp2, opj_cio_t *cio); +static opj_bool jp2_read_bpcc(opj_jp2_t *jp2, opj_cio_t *cio); static void jp2_write_colr(opj_jp2_t *jp2, opj_cio_t *cio); -static bool jp2_read_colr(opj_jp2_t *jp2, opj_cio_t *cio); /** Write the FTYP box - File type box @param jp2 JP2 handle @@ -70,9 +69,9 @@ Read the FTYP box - File type box @param cio Input buffer stream @return Returns true if successful, returns false otherwise */ -static bool jp2_read_ftyp(opj_jp2_t *jp2, opj_cio_t *cio); +static opj_bool jp2_read_ftyp(opj_jp2_t *jp2, opj_cio_t *cio); static int jp2_write_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image, opj_codestream_info_t *cstr_info); -static bool jp2_read_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, unsigned int *j2k_codestream_length, unsigned int *j2k_codestream_offset); +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 @@ -80,29 +79,92 @@ Read the JP box - JPEG 2000 signature @param cio Input buffer stream @return Returns true if successful, returns false otherwise */ -static bool jp2_read_jp(opj_jp2_t *jp2, opj_cio_t *cio); +static opj_bool jp2_read_jp(opj_jp2_t *jp2, opj_cio_t *cio); /** 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 bool jp2_read_struct(opj_jp2_t *jp2, opj_cio_t *cio); - +static opj_bool jp2_read_struct(opj_jp2_t *jp2, opj_cio_t *cio, + opj_jp2_color_t *color); +/** +Apply collected palette data +@param color Collector for profile, cdef and pclr data +@param image +*/ +static void jp2_apply_pclr(opj_jp2_color_t *color, opj_image_t *image, opj_common_ptr cinfo); +/** +Collect palette 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_pclr(opj_jp2_t *jp2, opj_cio_t *cio, + opj_jp2_box_t *box, opj_jp2_color_t *color); +/** +Collect component mapping 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_cmap(opj_jp2_t *jp2, opj_cio_t *cio, + opj_jp2_box_t *box, opj_jp2_color_t *color); +/** +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); +/** +Write file Index (superbox) +@param[in] offset_jp2c offset of jp2c box +@param[in] length_jp2c length of jp2c box +@param[in] offset_idx offset of cidx box +@param[in] length_idx length of cidx box +@param[in] cio file output handle +@return length of fidx box +*/ +static int write_fidx( int offset_jp2c, int length_jp2c, int offset_idx, int length_idx, opj_cio_t *cio); +/** +Write index Finder box +@param[in] offset offset of fidx box +@param[in] length length of fidx box +@param[in] cio file output handle +*/ +static void write_iptr( int offset, int length, opj_cio_t *cio); +/** +Write proxy box +@param[in] offset_jp2c offset of jp2c box +@param[in] length_jp2c length of jp2c box +@param[in] offset_idx offset of cidx box +@param[in] length_idx length of cidx box +@param[in] cio file output handle +*/ +static void write_prxy( int offset_jp2c, int length_jp2c, int offset_idx, int length_idx, opj_cio_t *cio); /*@}*/ /*@}*/ /* ----------------------------------------------------------------------- */ -static bool jp2_read_boxhdr(opj_common_ptr cinfo, opj_cio_t *cio, opj_jp2_box_t *box) { +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 false; + return OPJ_FALSE; } box->length = cio_read(cio, 4); if (box->length == 0) @@ -112,7 +174,7 @@ static bool jp2_read_boxhdr(opj_common_ptr cinfo, opj_cio_t *cio, opj_jp2_box_t box->length = cio_numbytesleft(cio) + 8; } - return true; + return OPJ_TRUE; } #if 0 @@ -139,7 +201,7 @@ static void jp2_write_url(opj_cio_t *cio, char *Idx_file) { } #endif -static bool jp2_read_ihdr(opj_jp2_t *jp2, opj_cio_t *cio) { +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; @@ -147,7 +209,7 @@ static bool jp2_read_ihdr(opj_jp2_t *jp2, opj_cio_t *cio) { jp2_read_boxhdr(cinfo, cio, &box); if (JP2_IHDR != box.type) { opj_event_msg(cinfo, EVT_ERROR, "Expected IHDR Marker\n"); - return false; + return OPJ_FALSE; } jp2->h = cio_read(cio, 4); /* HEIGHT */ @@ -163,10 +225,10 @@ static bool jp2_read_ihdr(opj_jp2_t *jp2, opj_cio_t *cio) { if (cio_tell(cio) - box.init_pos != box.length) { opj_event_msg(cinfo, EVT_ERROR, "Error with IHDR Box\n"); - return false; + return OPJ_FALSE; } - return true; + return OPJ_TRUE; } static void jp2_write_ihdr(opj_jp2_t *jp2, opj_cio_t *cio) { @@ -211,7 +273,7 @@ static void jp2_write_bpcc(opj_jp2_t *jp2, opj_cio_t *cio) { } -static bool jp2_read_bpcc(opj_jp2_t *jp2, opj_cio_t *cio) { +static opj_bool jp2_read_bpcc(opj_jp2_t *jp2, opj_cio_t *cio) { unsigned int i; opj_jp2_box_t box; @@ -220,7 +282,7 @@ static bool jp2_read_bpcc(opj_jp2_t *jp2, opj_cio_t *cio) { jp2_read_boxhdr(cinfo, cio, &box); if (JP2_BPCC != box.type) { opj_event_msg(cinfo, EVT_ERROR, "Expected BPCC Marker\n"); - return false; + return OPJ_FALSE; } for (i = 0; i < jp2->numcomps; i++) { @@ -229,10 +291,10 @@ static bool jp2_read_bpcc(opj_jp2_t *jp2, opj_cio_t *cio) { if (cio_tell(cio) - box.init_pos != box.length) { opj_event_msg(cinfo, EVT_ERROR, "Error with BPCC Box\n"); - return false; + return OPJ_FALSE; } - return true; + return OPJ_TRUE; } static void jp2_write_colr(opj_jp2_t *jp2, opj_cio_t *cio) { @@ -246,11 +308,10 @@ static void jp2_write_colr(opj_jp2_t *jp2, opj_cio_t *cio) { cio_write(cio, jp2->precedence, 1); /* PRECEDENCE */ cio_write(cio, jp2->approx, 1); /* APPROX */ - if (jp2->meth == 1) { - cio_write(cio, jp2->enumcs, 4); /* EnumCS */ - } else { - cio_write(cio, 0, 1); /* PROFILE (??) */ - } + if(jp2->meth == 2) + jp2->enumcs = 0; + + cio_write(cio, jp2->enumcs, 4); /* EnumCS */ box.length = cio_tell(cio) - box.init_pos; cio_seek(cio, box.init_pos); @@ -258,42 +319,478 @@ static void jp2_write_colr(opj_jp2_t *jp2, opj_cio_t *cio) { cio_seek(cio, box.init_pos + box.length); } -static bool jp2_read_colr(opj_jp2_t *jp2, opj_cio_t *cio) { - opj_jp2_box_t box; +static void jp2_free_pclr(opj_jp2_color_t *color) +{ + opj_free(color->jp2_pclr->channel_sign); + opj_free(color->jp2_pclr->channel_size); + opj_free(color->jp2_pclr->entries); + + if(color->jp2_pclr->cmap) opj_free(color->jp2_pclr->cmap); + + opj_free(color->jp2_pclr); color->jp2_pclr = NULL; +} + +static void free_color_data(opj_jp2_color_t *color) +{ + if(color->jp2_pclr) + { + jp2_free_pclr(color); + } + if(color->jp2_cdef) + { + if(color->jp2_cdef->info) opj_free(color->jp2_cdef->info); + opj_free(color->jp2_cdef); + } + if(color->icc_profile_buf) opj_free(color->icc_profile_buf); +} + +static void jp2_apply_pclr(opj_jp2_color_t *color, opj_image_t *image, opj_common_ptr cinfo) +{ + opj_image_comp_t *old_comps, *new_comps; + unsigned char *channel_size, *channel_sign; + unsigned int *entries; + opj_jp2_cmap_comp_t *cmap; + int *src, *dst; + unsigned int j, max; + unsigned short i, nr_channels, cmp, pcol; + int k, top_k; + + channel_size = color->jp2_pclr->channel_size; + channel_sign = color->jp2_pclr->channel_sign; + entries = color->jp2_pclr->entries; + cmap = color->jp2_pclr->cmap; + nr_channels = color->jp2_pclr->nr_channels; + + old_comps = image->comps; + new_comps = (opj_image_comp_t*) + opj_malloc(nr_channels * sizeof(opj_image_comp_t)); + + for(i = 0; i < nr_channels; ++i) + { + pcol = cmap[i].pcol; cmp = cmap[i].cmp; + + if( pcol < nr_channels ) + new_comps[pcol] = old_comps[cmp]; + else + { + opj_event_msg(cinfo, EVT_ERROR, "Error with pcol value %d (max: %d). skipping\n", pcol, nr_channels); + continue; + } + + if(cmap[i].mtyp == 0) /* Direct use */ + { + old_comps[cmp].data = NULL; continue; + } +/* Palette mapping: */ + new_comps[pcol].data = (int*) + opj_malloc(old_comps[cmp].w * old_comps[cmp].h * sizeof(int)); + new_comps[pcol].prec = channel_size[i]; + new_comps[pcol].sgnd = channel_sign[i]; + } + top_k = color->jp2_pclr->nr_entries - 1; + + for(i = 0; i < nr_channels; ++i) + { +/* Direct use: */ + if(cmap[i].mtyp == 0) continue; + +/* Palette mapping: */ + cmp = cmap[i].cmp; pcol = cmap[i].pcol; + src = old_comps[cmp].data; + dst = new_comps[pcol].data; + max = new_comps[pcol].w * new_comps[pcol].h; + + for(j = 0; j < max; ++j) + { +/* The index */ + if((k = src[j]) < 0) k = 0; else if(k > top_k) k = top_k; +/* The colour */ + dst[j] = entries[k * nr_channels + pcol]; + } + } + max = image->numcomps; + for(i = 0; i < max; ++i) + { + if(old_comps[i].data) opj_free(old_comps[i].data); + } + opj_free(old_comps); + image->comps = new_comps; + image->numcomps = nr_channels; + + jp2_free_pclr(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() */ + +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() */ + +static void jp2_apply_cdef(opj_image_t *image, opj_jp2_color_t *color) +{ + opj_jp2_cdef_info_t *info; + int color_space; + unsigned short i, n, cn, typ, asoc, acn; + + color_space = image->color_space; + info = color->jp2_cdef->info; + n = color->jp2_cdef->n; + + for(i = 0; i < n; ++i) + { +/* WATCH: acn = asoc - 1 ! */ + if((asoc = info[i].asoc) == 0) continue; + + cn = info[i].cn; typ = info[i].typ; acn = asoc - 1; + + if(cn != acn) + { + opj_image_comp_t saved; + + memcpy(&saved, &image->comps[cn], sizeof(opj_image_comp_t)); + memcpy(&image->comps[cn], &image->comps[acn], sizeof(opj_image_comp_t)); + memcpy(&image->comps[acn], &saved, sizeof(opj_image_comp_t)); + + info[i].asoc = cn + 1; + info[acn].asoc = info[acn].cn + 1; + } + } + if(color->jp2_cdef->info) opj_free(color->jp2_cdef->info); + + opj_free(color->jp2_cdef); color->jp2_cdef = 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() */ + +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; - opj_common_ptr cinfo = jp2->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; - jp2_read_boxhdr(cinfo, cio, &box); - do { - if (JP2_COLR != box.type) { - cio_skip(cio, box.length - 8); - jp2_read_boxhdr(cinfo, cio, &box); - } - } while(JP2_COLR != box.type); + 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 { - /* skip PROFILE */ - skip_len = box.init_pos + box.length - cio_tell(cio); - if (skip_len < 0) { - opj_event_msg(cinfo, EVT_ERROR, "Error with JP2H box size\n"); - return false; - } - cio_skip(cio, box.init_pos + box.length - cio_tell(cio)); - } + 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() */ + +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 && !jp2->ignore_pclr_cmap_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 && !jp2->ignore_pclr_cmap_cdef) + { + 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 && !jp2->ignore_pclr_cmap_cdef) + { + 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; + } + + if (!jp2->ignore_pclr_cmap_cdef){ + + /* 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(&color, image, cinfo); + } + 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() */ - if (cio_tell(cio) - box.init_pos != box.length) { - opj_event_msg(cinfo, EVT_ERROR, "Error with BPCC Box\n"); - return false; - } - return true; -} void jp2_write_jp2h(opj_jp2_t *jp2, opj_cio_t *cio) { opj_jp2_box_t box; @@ -315,44 +812,6 @@ void jp2_write_jp2h(opj_jp2_t *jp2, opj_cio_t *cio) { cio_seek(cio, box.init_pos + box.length); } -bool jp2_read_jp2h(opj_jp2_t *jp2, opj_cio_t *cio) { - opj_jp2_box_t box; - int skip_len; - - 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 false; - } - cio_skip(cio, box.length - 8); - jp2_read_boxhdr(cinfo, cio, &box); - } - } while(JP2_JP2H != box.type); - - if (!jp2_read_ihdr(jp2, cio)) - return false; - - if (jp2->bpc == 255) { - if (!jp2_read_bpcc(jp2, cio)) - return false; - } - if (!jp2_read_colr(jp2, cio)) - return false; - - skip_len = box.init_pos + box.length - cio_tell(cio); - if (skip_len < 0) { - opj_event_msg(cinfo, EVT_ERROR, "Error with JP2H Box\n"); - return false; - } - cio_skip(cio, box.init_pos + box.length - cio_tell(cio)); - - return true; -} - static void jp2_write_ftyp(opj_jp2_t *jp2, opj_cio_t *cio) { unsigned int i; opj_jp2_box_t box; @@ -374,7 +833,7 @@ static void jp2_write_ftyp(opj_jp2_t *jp2, opj_cio_t *cio) { cio_seek(cio, box.init_pos + box.length); } -static bool jp2_read_ftyp(opj_jp2_t *jp2, opj_cio_t *cio) { +static opj_bool jp2_read_ftyp(opj_jp2_t *jp2, opj_cio_t *cio) { int i; opj_jp2_box_t box; @@ -384,7 +843,7 @@ static bool jp2_read_ftyp(opj_jp2_t *jp2, opj_cio_t *cio) { if (JP2_FTYP != box.type) { opj_event_msg(cinfo, EVT_ERROR, "Expected FTYP Marker\n"); - return false; + return OPJ_FALSE; } jp2->brand = cio_read(cio, 4); /* BR */ @@ -398,10 +857,10 @@ static bool jp2_read_ftyp(opj_jp2_t *jp2, opj_cio_t *cio) { if (cio_tell(cio) - box.init_pos != box.length) { opj_event_msg(cinfo, EVT_ERROR, "Error with FTYP Box\n"); - return false; + return OPJ_FALSE; } - return true; + return OPJ_TRUE; } static int jp2_write_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image, opj_codestream_info_t *cstr_info) { @@ -433,7 +892,7 @@ static int jp2_write_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image, op return box.length; } -static bool jp2_read_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, unsigned int *j2k_codestream_length, unsigned int *j2k_codestream_offset) { +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; opj_common_ptr cinfo = jp2->cinfo; @@ -449,7 +908,7 @@ static bool jp2_read_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, unsigned int *j2k_code *j2k_codestream_offset = cio_tell(cio); *j2k_codestream_length = box.length - 8; - return true; + return OPJ_TRUE; } static void jp2_write_jp(opj_cio_t *cio) { @@ -466,7 +925,7 @@ static void jp2_write_jp(opj_cio_t *cio) { cio_seek(cio, box.init_pos + box.length); } -static bool jp2_read_jp(opj_jp2_t *jp2, opj_cio_t *cio) { +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; @@ -474,34 +933,96 @@ static bool jp2_read_jp(opj_jp2_t *jp2, opj_cio_t *cio) { jp2_read_boxhdr(cinfo, cio, &box); if (JP2_JP != box.type) { opj_event_msg(cinfo, EVT_ERROR, "Expected JP Marker\n"); - return false; + return OPJ_FALSE; } if (0x0d0a870a != cio_read(cio, 4)) { opj_event_msg(cinfo, EVT_ERROR, "Error with JP Marker\n"); - return false; + return OPJ_FALSE; } if (cio_tell(cio) - box.init_pos != box.length) { opj_event_msg(cinfo, EVT_ERROR, "Error with JP Box size\n"); - return false; + return OPJ_FALSE; } - return true; + return OPJ_TRUE; } -static bool jp2_read_struct(opj_jp2_t *jp2, opj_cio_t *cio) { +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 false; + return OPJ_FALSE; if (!jp2_read_ftyp(jp2, cio)) - return false; - if (!jp2_read_jp2h(jp2, cio)) - return false; + 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 false; + return OPJ_FALSE; - return true; + 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; + + lenp = cio_tell( cio); + cio_skip( cio, 4); /* L [at the end] */ + cio_write( cio, JPIP_FIDX, 4); /* IPTR */ + + write_prxy( offset_jp2c, length_jp2c, offset_idx, length_idx, cio); + + len = cio_tell( cio)-lenp; + cio_seek( cio, lenp); + cio_write( cio, len, 4); /* L */ + cio_seek( cio, lenp+len); + + return len; +} + +static void write_prxy( int offset_jp2c, int length_jp2c, int offset_idx, int length_idx, opj_cio_t *cio) +{ + int len, lenp; + + lenp = cio_tell( cio); + cio_skip( cio, 4); /* L [at the end] */ + cio_write( cio, JPIP_PRXY, 4); /* IPTR */ + + cio_write( cio, offset_jp2c, 8); /* OOFF */ + cio_write( cio, length_jp2c, 4); /* OBH part 1 */ + cio_write( cio, JP2_JP2C, 4); /* OBH part 2 */ + + cio_write( cio, 1,1); /* NI */ + + cio_write( cio, offset_idx, 8); /* IOFF */ + cio_write( cio, length_idx, 4); /* IBH part 1 */ + cio_write( cio, JPIP_CIDX, 4); /* IBH part 2 */ + + len = cio_tell( cio)-lenp; + cio_seek( cio, lenp); + cio_write( cio, len, 4); /* L */ + cio_seek( cio, lenp+len); } +static void write_iptr( int offset, int length, opj_cio_t *cio) +{ + int len, lenp; + + lenp = cio_tell( cio); + cio_skip( cio, 4); /* L [at the end] */ + cio_write( cio, JPIP_IPTR, 4); /* IPTR */ + + cio_write( cio, offset, 8); + cio_write( cio, length, 8); + + len = cio_tell( cio)-lenp; + cio_seek( cio, lenp); + cio_write( cio, len, 4); /* L */ + cio_seek( cio, lenp+len); +} + + /* ----------------------------------------------------------------------- */ /* JP2 decoder interface */ /* ----------------------------------------------------------------------- */ @@ -539,42 +1060,7 @@ 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 */ -} - -opj_image_t* 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; - - if(!jp2 || !cio) { - return NULL; - } - - cinfo = jp2->cinfo; - - /* JP2 decoding */ - if(!jp2_read_struct(jp2, cio)) { - 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) { - 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; - - return image; + jp2->ignore_pclr_cmap_cdef = parameters->flags & OPJ_DPARAMETERS_IGNORE_PCLR_CMAP_CDEF_FLAG; } /* ----------------------------------------------------------------------- */ @@ -664,30 +1150,23 @@ void jp2_setup_encoder(opj_jp2_t *jp2, opj_cparameters_t *parameters, opj_image_ for (i = 0; i < image->numcomps; i++) { jp2->comps[i].bpcc = image->comps[i].prec - 1 + (image->comps[i].sgnd << 7); } - - /* 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𣇻 */ - 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->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 */ jp2->precedence = 0; /* PRECEDENCE */ jp2->approx = 0; /* APPROX */ - + + jp2->jpip_on = parameters->jpip_on; } -bool jp2_encode(opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image, opj_codestream_info_t *cstr_info) { +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 */ @@ -698,14 +1177,34 @@ bool jp2_encode(opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image, opj_codestre /* 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); + } + /* 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; + } - if(!jp2_write_jp2c(jp2, cio, image, cstr_info)) { - opj_event_msg(jp2->cinfo, EVT_ERROR, "Failed to encode image\n"); - return false; + 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); } - return true; + return OPJ_TRUE; } - - |