/* * Copyright (C) 2000, 2001, 2002 Björn Englund , * Håkan Hjort * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include #include #include #include #include //#include #include "dvd_reader.h" #include "config.h" // Needed for WORDS_BIGENDIAN #include "bswap.h" #include "ifo_types.h" #include "ifo_read.h" #ifndef DVD_BLOCK_LEN #define DVD_BLOCK_LEN 2048 #endif #ifndef NDEBUG #define CHECK_ZERO(arg) \ if(memcmp(my_friendly_zeros, &arg, sizeof(arg))) { \ unsigned int i_CZ; \ fprintf(stderr, "*** Zero check failed in %s:%i\n for %s = 0x", \ __FILE__, __LINE__, # arg ); \ for(i_CZ = 0; i_CZ < sizeof(arg); i_CZ++) \ fprintf(stderr, "%02x", *((uint8_t *)&arg + i_CZ)); \ fprintf(stderr, "\n"); \ } static const uint8_t my_friendly_zeros[2048]; #else #define CHECK_ZERO(arg) (void)(arg) #endif /* Prototypes for internal functions */ static int ifoRead_VMG(ifo_handle_t *ifofile); static int ifoRead_VTS(ifo_handle_t *ifofile); static int ifoRead_PGC(ifo_handle_t *ifofile, pgc_t *pgc, unsigned int offset); static int ifoRead_PGC_COMMAND_TBL(ifo_handle_t *ifofile, pgc_command_tbl_t *cmd_tbl, unsigned int offset); static int ifoRead_PGC_PROGRAM_MAP(ifo_handle_t *ifofile, pgc_program_map_t *program_map, unsigned int nr, unsigned int offset); static int ifoRead_CELL_PLAYBACK_TBL(ifo_handle_t *ifofile, cell_playback_t *cell_playback, unsigned int nr, unsigned int offset); static int ifoRead_CELL_POSITION_TBL(ifo_handle_t *ifofile, cell_position_t *cell_position, unsigned int nr, unsigned int offset); static int ifoRead_VTS_ATTRIBUTES(ifo_handle_t *ifofile, vts_attributes_t *vts_attributes, unsigned int offset); static int ifoRead_C_ADT_internal(ifo_handle_t *ifofile, c_adt_t *c_adt, unsigned int sector); static int ifoRead_VOBU_ADMAP_internal(ifo_handle_t *ifofile, vobu_admap_t *vobu_admap, unsigned int sector); static int ifoRead_PGCIT_internal(ifo_handle_t *ifofile, pgcit_t *pgcit, unsigned int offset); static void ifoFree_PGC(pgc_t *pgc); static void ifoFree_PGC_COMMAND_TBL(pgc_command_tbl_t *cmd_tbl); static void ifoFree_PGCIT_internal(pgcit_t *pgcit); static int DVDFileSeek_( dvd_file_t *dvd_file, uint32_t offset ) { return (DVDFileSeek(dvd_file, (int)offset) == (int)offset); } ifo_handle_t *ifoOpen(dvd_reader_t *dvd, int title) { ifo_handle_t *ifofile; ifofile = (ifo_handle_t *)malloc(sizeof(ifo_handle_t)); if(!ifofile) return 0; memset(ifofile, 0, sizeof(ifo_handle_t)); ifofile->file = DVDOpenFile(dvd, title, DVD_READ_INFO_FILE); if(!ifofile->file) { if(title) { fprintf(stderr, "libdvdread: Can't open file VTS_%02d_0.IFO.\n", title); } else { fprintf(stderr, "libdvdread: Can't open file VIDEO_TS.IFO.\n"); } free(ifofile); return 0; } /* First check if this is a VMGI file. */ if(ifoRead_VMG(ifofile)) { /* These are both mandatory. */ if(!ifoRead_FP_PGC(ifofile) || !ifoRead_TT_SRPT(ifofile)) { fprintf(stderr, "libdvdread: Invalid main menu IFO (VIDEO_TS.IFO).\n"); ifoClose(ifofile); return 0; } ifoRead_PGCI_UT(ifofile); ifoRead_PTL_MAIT(ifofile); /* This is also mandatory. */ if(!ifoRead_VTS_ATRT(ifofile)) { fprintf(stderr, "libdvdread: Invalid main menu IFO (VIDEO_TS.IFO).\n"); ifoClose(ifofile); return 0; } ifoRead_TXTDT_MGI(ifofile); ifoRead_C_ADT(ifofile); ifoRead_VOBU_ADMAP(ifofile); return ifofile; } if(ifoRead_VTS(ifofile)) { if(!ifoRead_VTS_PTT_SRPT(ifofile) || !ifoRead_PGCIT(ifofile)) { fprintf(stderr, "libdvdread: Invalid title IFO (VTS_%02d_0.IFO).\n", title); ifoClose(ifofile); return 0; } ifoRead_PGCI_UT(ifofile); ifoRead_C_ADT(ifofile); ifoRead_VOBU_ADMAP(ifofile); if(!ifoRead_TITLE_C_ADT(ifofile) || !ifoRead_TITLE_VOBU_ADMAP(ifofile)) { fprintf(stderr, "libdvdread: Invalid title IFO (VTS_%02d_0.IFO).\n", title); ifoClose(ifofile); return 0; } return ifofile; } if(title) { fprintf(stderr, "libdvdread: Invalid IFO for title %d (VTS_%02d_0.IFO).\n", title, title); } else { fprintf(stderr, "libdvdread: Invalid IFO for VMGM (VIDEO_TS.IFO).\n"); } ifoClose(ifofile); return 0; } ifo_handle_t *ifoOpenVMGI(dvd_reader_t *dvd) { ifo_handle_t *ifofile; ifofile = (ifo_handle_t *)malloc(sizeof(ifo_handle_t)); if(!ifofile) return 0; memset(ifofile, 0, sizeof(ifo_handle_t)); ifofile->file = DVDOpenFile(dvd, 0, DVD_READ_INFO_FILE); if(!ifofile->file) { fprintf(stderr, "libdvdread: Can't open file VIDEO_TS.IFO.\n"); free(ifofile); return 0; } if(ifoRead_VMG(ifofile)) return ifofile; fprintf(stderr, "libdvdread: Invalid main menu IFO (VIDEO_TS.IFO).\n"); ifoClose(ifofile); return 0; } ifo_handle_t *ifoOpenVTSI(dvd_reader_t *dvd, int title) { ifo_handle_t *ifofile; ifofile = (ifo_handle_t *)malloc(sizeof(ifo_handle_t)); if(!ifofile) return 0; memset(ifofile, 0, sizeof(ifo_handle_t)); if(title <= 0 || title > 99) { fprintf(stderr, "libdvdread: ifoOpenVTSI invalid title (%d).\n", title); free(ifofile); return 0; } ifofile->file = DVDOpenFile(dvd, title, DVD_READ_INFO_FILE); if(!ifofile->file) { fprintf(stderr, "libdvdread: Can't open file VTS_%02d_0.IFO.\n", title); free(ifofile); return 0; } ifoRead_VTS(ifofile); if(ifofile->vtsi_mat) return ifofile; fprintf(stderr, "libdvdread: Invalid IFO for title %d (VTS_%02d_0.IFO).\n", title, title); ifoClose(ifofile); return 0; } void ifoClose(ifo_handle_t *ifofile) { if(!ifofile) return; ifoFree_VOBU_ADMAP(ifofile); ifoFree_TITLE_VOBU_ADMAP(ifofile); ifoFree_C_ADT(ifofile); ifoFree_TITLE_C_ADT(ifofile); ifoFree_TXTDT_MGI(ifofile); ifoFree_VTS_ATRT(ifofile); ifoFree_PTL_MAIT(ifofile); ifoFree_PGCI_UT(ifofile); ifoFree_TT_SRPT(ifofile); ifoFree_FP_PGC(ifofile); ifoFree_PGCIT(ifofile); ifoFree_VTS_PTT_SRPT(ifofile); if(ifofile->vmgi_mat) free(ifofile->vmgi_mat); if(ifofile->vtsi_mat) free(ifofile->vtsi_mat); DVDCloseFile(ifofile->file); ifofile->file = 0; free(ifofile); ifofile = 0; } static int ifoRead_VMG(ifo_handle_t *ifofile) { vmgi_mat_t *vmgi_mat; vmgi_mat = (vmgi_mat_t *)malloc(sizeof(vmgi_mat_t)); if(!vmgi_mat) return 0; ifofile->vmgi_mat = vmgi_mat; if(!DVDFileSeek_(ifofile->file, 0)) { free(ifofile->vmgi_mat); ifofile->vmgi_mat = 0; return 0; } if(!DVDReadBytes(ifofile->file, vmgi_mat, sizeof(vmgi_mat_t))) { free(ifofile->vmgi_mat); ifofile->vmgi_mat = 0; return 0; } if(strncmp("DVDVIDEO-VMG", vmgi_mat->vmg_identifier, 12) != 0) { free(ifofile->vmgi_mat); ifofile->vmgi_mat = 0; return 0; } B2N_32(vmgi_mat->vmg_last_sector); B2N_32(vmgi_mat->vmgi_last_sector); B2N_32(vmgi_mat->vmg_category); B2N_16(vmgi_mat->vmg_nr_of_volumes); B2N_16(vmgi_mat->vmg_this_volume_nr); B2N_16(vmgi_mat->vmg_nr_of_title_sets); B2N_64(vmgi_mat->vmg_pos_code); B2N_32(vmgi_mat->vmgi_last_byte); B2N_32(vmgi_mat->first_play_pgc); B2N_32(vmgi_mat->vmgm_vobs); B2N_32(vmgi_mat->tt_srpt); B2N_32(vmgi_mat->vmgm_pgci_ut); B2N_32(vmgi_mat->ptl_mait); B2N_32(vmgi_mat->vts_atrt); B2N_32(vmgi_mat->txtdt_mgi); B2N_32(vmgi_mat->vmgm_c_adt); B2N_32(vmgi_mat->vmgm_vobu_admap); B2N_16(vmgi_mat->vmgm_audio_attr.lang_code); B2N_16(vmgi_mat->vmgm_subp_attr.lang_code); CHECK_ZERO(vmgi_mat->zero_1); CHECK_ZERO(vmgi_mat->zero_2); CHECK_ZERO(vmgi_mat->zero_3); CHECK_ZERO(vmgi_mat->zero_4); CHECK_ZERO(vmgi_mat->zero_5); CHECK_ZERO(vmgi_mat->zero_6); CHECK_ZERO(vmgi_mat->zero_7); CHECK_ZERO(vmgi_mat->zero_8); CHECK_ZERO(vmgi_mat->zero_9); CHECK_ZERO(vmgi_mat->zero_10); assert(vmgi_mat->vmg_last_sector != 0); assert(vmgi_mat->vmgi_last_sector != 0); assert(vmgi_mat->vmgi_last_sector * 2 <= vmgi_mat->vmg_last_sector); assert(vmgi_mat->vmg_nr_of_volumes != 0); assert(vmgi_mat->vmg_this_volume_nr != 0); assert(vmgi_mat->vmg_this_volume_nr <= vmgi_mat->vmg_nr_of_volumes); assert(vmgi_mat->disc_side == 1 || vmgi_mat->disc_side == 2); assert(vmgi_mat->vmg_nr_of_title_sets != 0); assert(vmgi_mat->vmgi_last_byte >= 341); assert(vmgi_mat->vmgi_last_byte / DVD_BLOCK_LEN <= vmgi_mat->vmgi_last_sector); /* It seems that first_play_pgc might be optional. */ assert(vmgi_mat->first_play_pgc != 0 && vmgi_mat->first_play_pgc < vmgi_mat->vmgi_last_byte); assert(vmgi_mat->vmgm_vobs == 0 || (vmgi_mat->vmgm_vobs > vmgi_mat->vmgi_last_sector && vmgi_mat->vmgm_vobs < vmgi_mat->vmg_last_sector)); assert(vmgi_mat->tt_srpt <= vmgi_mat->vmgi_last_sector); assert(vmgi_mat->vmgm_pgci_ut <= vmgi_mat->vmgi_last_sector); assert(vmgi_mat->ptl_mait <= vmgi_mat->vmgi_last_sector); assert(vmgi_mat->vts_atrt <= vmgi_mat->vmgi_last_sector); assert(vmgi_mat->txtdt_mgi <= vmgi_mat->vmgi_last_sector); assert(vmgi_mat->vmgm_c_adt <= vmgi_mat->vmgi_last_sector); assert(vmgi_mat->vmgm_vobu_admap <= vmgi_mat->vmgi_last_sector); assert(vmgi_mat->nr_of_vmgm_audio_streams <= 1); assert(vmgi_mat->nr_of_vmgm_subp_streams <= 1); return 1; } static int ifoRead_VTS(ifo_handle_t *ifofile) { vtsi_mat_t *vtsi_mat; int i; vtsi_mat = (vtsi_mat_t *)malloc(sizeof(vtsi_mat_t)); if(!vtsi_mat) return 0; ifofile->vtsi_mat = vtsi_mat; if(!DVDFileSeek_(ifofile->file, 0)) { free(ifofile->vtsi_mat); ifofile->vtsi_mat = 0; return 0; } if(!(DVDReadBytes(ifofile->file, vtsi_mat, sizeof(vtsi_mat_t)))) { free(ifofile->vtsi_mat); ifofile->vtsi_mat = 0; return 0; } if(strncmp("DVDVIDEO-VTS", vtsi_mat->vts_identifier, 12) != 0) { free(ifofile->vtsi_mat); ifofile->vtsi_mat = 0; return 0; } B2N_32(vtsi_mat->vts_last_sector); B2N_32(vtsi_mat->vtsi_last_sector); B2N_32(vtsi_mat->vts_category); B2N_32(vtsi_mat->vtsi_last_byte); B2N_32(vtsi_mat->vtsm_vobs); B2N_32(vtsi_mat->vtstt_vobs); B2N_32(vtsi_mat->vts_ptt_srpt); B2N_32(vtsi_mat->vts_pgcit); B2N_32(vtsi_mat->vtsm_pgci_ut); B2N_32(vtsi_mat->vts_tmapt); B2N_32(vtsi_mat->vtsm_c_adt); B2N_32(vtsi_mat->vtsm_vobu_admap); B2N_32(vtsi_mat->vts_c_adt); B2N_32(vtsi_mat->vts_vobu_admap); B2N_16(vtsi_mat->vtsm_audio_attr.lang_code); B2N_16(vtsi_mat->vtsm_subp_attr.lang_code); for(i = 0; i < 8; i++) B2N_16(vtsi_mat->vts_audio_attr[i].lang_code); for(i = 0; i < 32; i++) B2N_16(vtsi_mat->vts_subp_attr[i].lang_code); CHECK_ZERO(vtsi_mat->zero_1); CHECK_ZERO(vtsi_mat->zero_2); CHECK_ZERO(vtsi_mat->zero_3); CHECK_ZERO(vtsi_mat->zero_4); CHECK_ZERO(vtsi_mat->zero_5); CHECK_ZERO(vtsi_mat->zero_6); CHECK_ZERO(vtsi_mat->zero_7); CHECK_ZERO(vtsi_mat->zero_8); CHECK_ZERO(vtsi_mat->zero_9); CHECK_ZERO(vtsi_mat->zero_10); CHECK_ZERO(vtsi_mat->zero_11); CHECK_ZERO(vtsi_mat->zero_12); CHECK_ZERO(vtsi_mat->zero_13); CHECK_ZERO(vtsi_mat->zero_14); CHECK_ZERO(vtsi_mat->zero_15); CHECK_ZERO(vtsi_mat->zero_16); CHECK_ZERO(vtsi_mat->zero_17); CHECK_ZERO(vtsi_mat->zero_18); CHECK_ZERO(vtsi_mat->zero_19); CHECK_ZERO(vtsi_mat->zero_20); assert(vtsi_mat->vtsi_last_sector*2 <= vtsi_mat->vts_last_sector); assert(vtsi_mat->vtsi_last_byte/DVD_BLOCK_LEN <= vtsi_mat->vtsi_last_sector); assert(vtsi_mat->vtsm_vobs == 0 || (vtsi_mat->vtsm_vobs > vtsi_mat->vtsi_last_sector && vtsi_mat->vtsm_vobs < vtsi_mat->vts_last_sector)); assert(vtsi_mat->vtstt_vobs == 0 || (vtsi_mat->vtstt_vobs > vtsi_mat->vtsi_last_sector && vtsi_mat->vtstt_vobs < vtsi_mat->vts_last_sector)); assert(vtsi_mat->vts_ptt_srpt <= vtsi_mat->vtsi_last_sector); assert(vtsi_mat->vts_pgcit <= vtsi_mat->vtsi_last_sector); assert(vtsi_mat->vtsm_pgci_ut <= vtsi_mat->vtsi_last_sector); assert(vtsi_mat->vts_tmapt <= vtsi_mat->vtsi_last_sector); assert(vtsi_mat->vtsm_c_adt <= vtsi_mat->vtsi_last_sector); assert(vtsi_mat->vtsm_vobu_admap <= vtsi_mat->vtsi_last_sector); assert(vtsi_mat->vts_c_adt <= vtsi_mat->vtsi_last_sector); assert(vtsi_mat->vts_vobu_admap <= vtsi_mat->vtsi_last_sector); assert(vtsi_mat->nr_of_vtsm_audio_streams <= 1); assert(vtsi_mat->nr_of_vtsm_subp_streams <= 1); assert(vtsi_mat->nr_of_vts_audio_streams <= 8); for(i = vtsi_mat->nr_of_vts_audio_streams; i < 8; i++) CHECK_ZERO(vtsi_mat->vts_audio_attr[i]); assert(vtsi_mat->nr_of_vts_subp_streams <= 32); for(i = vtsi_mat->nr_of_vts_subp_streams; i < 32; i++) CHECK_ZERO(vtsi_mat->vts_subp_attr[i]); return 1; } static int ifoRead_PGC_COMMAND_TBL(ifo_handle_t *ifofile, pgc_command_tbl_t *cmd_tbl, unsigned int offset) { memset(cmd_tbl, 0, sizeof(pgc_command_tbl_t)); if(!DVDFileSeek_(ifofile->file, offset)) return 0; if(!(DVDReadBytes(ifofile->file, cmd_tbl, PGC_COMMAND_TBL_SIZE))) return 0; B2N_16(cmd_tbl->nr_of_pre); B2N_16(cmd_tbl->nr_of_post); B2N_16(cmd_tbl->nr_of_cell); assert(cmd_tbl->nr_of_pre + cmd_tbl->nr_of_post + cmd_tbl->nr_of_cell<= 255); if(cmd_tbl->nr_of_pre != 0) { unsigned int pre_cmds_size = cmd_tbl->nr_of_pre * COMMAND_DATA_SIZE; cmd_tbl->pre_cmds = (vm_cmd_t *)malloc(pre_cmds_size); if(!cmd_tbl->pre_cmds) return 0; if(!(DVDReadBytes(ifofile->file, cmd_tbl->pre_cmds, pre_cmds_size))) { free(cmd_tbl->pre_cmds); return 0; } } if(cmd_tbl->nr_of_post != 0) { unsigned int post_cmds_size = cmd_tbl->nr_of_post * COMMAND_DATA_SIZE; cmd_tbl->post_cmds = (vm_cmd_t *)malloc(post_cmds_size); if(!cmd_tbl->post_cmds) { if(cmd_tbl->pre_cmds) free(cmd_tbl->pre_cmds); return 0; } if(!(DVDReadBytes(ifofile->file, cmd_tbl->post_cmds, post_cmds_size))) { if(cmd_tbl->pre_cmds) free(cmd_tbl->pre_cmds); free(cmd_tbl->post_cmds); return 0; } } if(cmd_tbl->nr_of_cell != 0) { unsigned int cell_cmds_size = cmd_tbl->nr_of_cell * COMMAND_DATA_SIZE; cmd_tbl->cell_cmds = (vm_cmd_t *)malloc(cell_cmds_size); if(!cmd_tbl->cell_cmds) { if(cmd_tbl->pre_cmds) free(cmd_tbl->pre_cmds); if(cmd_tbl->post_cmds) free(cmd_tbl->post_cmds); return 0; } if(!(DVDReadBytes(ifofile->file, cmd_tbl->cell_cmds, cell_cmds_size))) { if(cmd_tbl->pre_cmds) free(cmd_tbl->pre_cmds); if(cmd_tbl->post_cmds) free(cmd_tbl->post_cmds); free(cmd_tbl->cell_cmds); return 0; } } /* * Make a run over all the commands and see that we can interpret them all? */ return 1; } static void ifoFree_PGC_COMMAND_TBL(pgc_command_tbl_t *cmd_tbl) { if(cmd_tbl) { if(cmd_tbl->nr_of_pre && cmd_tbl->pre_cmds) free(cmd_tbl->pre_cmds); if(cmd_tbl->nr_of_post && cmd_tbl->post_cmds) free(cmd_tbl->post_cmds); if(cmd_tbl->nr_of_cell && cmd_tbl->cell_cmds) free(cmd_tbl->cell_cmds); free(cmd_tbl); } } static int ifoRead_PGC_PROGRAM_MAP(ifo_handle_t *ifofile, pgc_program_map_t *program_map, unsigned int nr, unsigned int offset) { unsigned int size = nr * sizeof(pgc_program_map_t); if(!DVDFileSeek_(ifofile->file, offset)) return 0; if(!(DVDReadBytes(ifofile->file, program_map, size))) return 0; return 1; } static int ifoRead_CELL_PLAYBACK_TBL(ifo_handle_t *ifofile, cell_playback_t *cell_playback, unsigned int nr, unsigned int offset) { unsigned int i; unsigned int size = nr * sizeof(cell_playback_t); if(!DVDFileSeek_(ifofile->file, offset)) return 0; if(!(DVDReadBytes(ifofile->file, cell_playback, size))) return 0; for(i = 0; i < nr; i++) { B2N_32(cell_playback[i].first_sector); B2N_32(cell_playback[i].first_ilvu_end_sector); B2N_32(cell_playback[i].last_vobu_start_sector); B2N_32(cell_playback[i].last_sector); /* Changed < to <= because this was false in the movie 'Pi'. */ assert(cell_playback[i].last_vobu_start_sector <= cell_playback[i].last_sector); assert(cell_playback[i].first_sector <= cell_playback[i].last_vobu_start_sector); } return 1; } static int ifoRead_CELL_POSITION_TBL(ifo_handle_t *ifofile, cell_position_t *cell_position, unsigned int nr, unsigned int offset) { unsigned int i; unsigned int size = nr * sizeof(cell_position_t); if(!DVDFileSeek_(ifofile->file, offset)) return 0; if(!(DVDReadBytes(ifofile->file, cell_position, size))) return 0; for(i = 0; i < nr; i++) { B2N_16(cell_position[i].vob_id_nr); CHECK_ZERO(cell_position[i].zero_1); } return 1; } static int ifoRead_PGC(ifo_handle_t *ifofile, pgc_t *pgc, unsigned int offset) { unsigned int i; if(!DVDFileSeek_(ifofile->file, offset)) return 0; if(!(DVDReadBytes(ifofile->file, pgc, PGC_SIZE))) return 0; B2N_16(pgc->next_pgc_nr); B2N_16(pgc->prev_pgc_nr); B2N_16(pgc->goup_pgc_nr); B2N_16(pgc->command_tbl_offset); B2N_16(pgc->program_map_offset); B2N_16(pgc->cell_playback_offset); B2N_16(pgc->cell_position_offset); for(i = 0; i < 8; i++) B2N_16(pgc->audio_control[i]); for(i = 0; i < 32; i++) B2N_32(pgc->subp_control[i]); for(i = 0; i < 16; i++) B2N_32(pgc->palette[i]); CHECK_ZERO(pgc->zero_1); assert(pgc->nr_of_programs <= pgc->nr_of_cells); /* verify time (look at print_time) */ for(i = 0; i < 8; i++) if(!pgc->audio_control[i] & 0x8000) /* The 'is present' bit */ CHECK_ZERO(pgc->audio_control[i]); for(i = 0; i < 32; i++) if(!pgc->subp_control[i] & 0x80000000) /* The 'is present' bit */ CHECK_ZERO(pgc->subp_control[i]); /* Check that time is 0:0:0:0 also if nr_of_programs == 0 */ if(pgc->nr_of_programs == 0) { CHECK_ZERO(pgc->still_time); CHECK_ZERO(pgc->pg_playback_mode); // ?? assert(pgc->program_map_offset == 0); assert(pgc->cell_playback_offset == 0); assert(pgc->cell_position_offset == 0); } else { assert(pgc->program_map_offset != 0); assert(pgc->cell_playback_offset != 0); assert(pgc->cell_position_offset != 0); } if(pgc->command_tbl_offset != 0) { pgc->command_tbl = malloc(sizeof(pgc_command_tbl_t)); if(!pgc->command_tbl) return 0; if(!ifoRead_PGC_COMMAND_TBL(ifofile, pgc->command_tbl, offset + pgc->command_tbl_offset)) { free(pgc->command_tbl); return 0; } } else { pgc->command_tbl = NULL; } if(pgc->program_map_offset != 0) { pgc->program_map = malloc(pgc->nr_of_programs * sizeof(pgc_program_map_t)); if(!pgc->program_map) { ifoFree_PGC_COMMAND_TBL(pgc->command_tbl); return 0; } if(!ifoRead_PGC_PROGRAM_MAP(ifofile, pgc->program_map,pgc->nr_of_programs, offset + pgc->program_map_offset)) { ifoFree_PGC_COMMAND_TBL(pgc->command_tbl); free(pgc->program_map); return 0; } } else { pgc->program_map = NULL; } if(pgc->cell_playback_offset != 0) { pgc->cell_playback = malloc(pgc->nr_of_cells * sizeof(cell_playback_t)); if(!pgc->cell_playback) { ifoFree_PGC_COMMAND_TBL(pgc->command_tbl); if(pgc->program_map) free(pgc->program_map); return 0; } if(!ifoRead_CELL_PLAYBACK_TBL(ifofile, pgc->cell_playback, pgc->nr_of_cells, offset + pgc->cell_playback_offset)) { ifoFree_PGC_COMMAND_TBL(pgc->command_tbl); if(pgc->program_map) free(pgc->program_map); free(pgc->cell_playback); return 0; } } else { pgc->cell_playback = NULL; } if(pgc->cell_position_offset != 0) { pgc->cell_position = malloc(pgc->nr_of_cells * sizeof(cell_position_t)); if(!pgc->cell_position) { ifoFree_PGC(pgc); return 0; } if(!ifoRead_CELL_POSITION_TBL(ifofile, pgc->cell_position, pgc->nr_of_cells, offset + pgc->cell_position_offset)) { ifoFree_PGC(pgc); return 0; } } else { pgc->cell_position = NULL; } return 1; } int ifoRead_FP_PGC(ifo_handle_t *ifofile) { if(!ifofile) return 0; if(!ifofile->vmgi_mat) return 0; /* It seems that first_play_pgc might be optional after all. */ if(ifofile->vmgi_mat->first_play_pgc == 0) { /* mandatory */ ifofile->first_play_pgc = 0; return 0; /* change this to a 1 if it's optional. */ } ifofile->first_play_pgc = (pgc_t *)malloc(sizeof(pgc_t)); if(!ifofile->first_play_pgc) return 0; if(!ifoRead_PGC(ifofile, ifofile->first_play_pgc, ifofile->vmgi_mat->first_play_pgc)) { free(ifofile->first_play_pgc); ifofile->first_play_pgc = 0; return 0; } return 1; } static void ifoFree_PGC(pgc_t *pgc) { if(pgc) { ifoFree_PGC_COMMAND_TBL(pgc->command_tbl); if(pgc->program_map) free(pgc->program_map); if(pgc->cell_playback) free(pgc->cell_playback); if(pgc->cell_position) free(pgc->cell_position); } } void ifoFree_FP_PGC(ifo_handle_t *ifofile) { if(!ifofile) return; if(ifofile->first_play_pgc) { ifoFree_PGC(ifofile->first_play_pgc); free(ifofile->first_play_pgc); ifofile->first_play_pgc = 0; } } int ifoRead_TT_SRPT(ifo_handle_t *ifofile) { tt_srpt_t *tt_srpt; int i, info_length; if(!ifofile) return 0; if(!ifofile->vmgi_mat) return 0; if(ifofile->vmgi_mat->tt_srpt == 0) /* mandatory */ return 0; if(!DVDFileSeek_(ifofile->file, ifofile->vmgi_mat->tt_srpt * DVD_BLOCK_LEN)) return 0; tt_srpt = (tt_srpt_t *)malloc(sizeof(tt_srpt_t)); if(!tt_srpt) return 0; ifofile->tt_srpt = tt_srpt; if(!(DVDReadBytes(ifofile->file, tt_srpt, TT_SRPT_SIZE))) { fprintf(stderr, "libdvdread: Unable to read read TT_SRPT.\n"); free(tt_srpt); return 0; } B2N_16(tt_srpt->nr_of_srpts); B2N_32(tt_srpt->last_byte); info_length = tt_srpt->last_byte + 1 - TT_SRPT_SIZE; tt_srpt->title = (title_info_t *)malloc(info_length); if(!tt_srpt->title) { free(tt_srpt); ifofile->tt_srpt = 0; return 0; } if(!(DVDReadBytes(ifofile->file, tt_srpt->title, info_length))) { fprintf(stderr, "libdvdread: Unable to read read TT_SRPT.\n"); ifoFree_TT_SRPT(ifofile); return 0; } for(i = 0; i < tt_srpt->nr_of_srpts; i++) { B2N_16(tt_srpt->title[i].nr_of_ptts); B2N_16(tt_srpt->title[i].parental_id); B2N_32(tt_srpt->title[i].title_set_sector); } CHECK_ZERO(tt_srpt->zero_1); assert(tt_srpt->nr_of_srpts != 0); assert(tt_srpt->nr_of_srpts < 100); // ?? assert((int)tt_srpt->nr_of_srpts * sizeof(title_info_t) <= info_length); for(i = 0; i < tt_srpt->nr_of_srpts; i++) { assert(tt_srpt->title[i].pb_ty.zero_1 == 0); assert(tt_srpt->title[i].nr_of_angles != 0); assert(tt_srpt->title[i].nr_of_angles < 10); //assert(tt_srpt->title[i].nr_of_ptts != 0); // XXX: this assertion breaks Ghostbusters: assert(tt_srpt->title[i].nr_of_ptts < 1000); // ?? assert(tt_srpt->title[i].title_set_nr != 0); assert(tt_srpt->title[i].title_set_nr < 100); // ?? assert(tt_srpt->title[i].vts_ttn != 0); assert(tt_srpt->title[i].vts_ttn < 100); // ?? //assert(tt_srpt->title[i].title_set_sector != 0); } // Make this a function #if 0 if(memcmp((uint8_t *)tt_srpt->title + tt_srpt->nr_of_srpts * sizeof(title_info_t), my_friendly_zeros, info_length - tt_srpt->nr_of_srpts * sizeof(title_info_t))) { fprintf(stderr, "VMG_PTT_SRPT slack is != 0, "); hexdump((uint8_t *)tt_srpt->title + tt_srpt->nr_of_srpts * sizeof(title_info_t), info_length - tt_srpt->nr_of_srpts * sizeof(title_info_t)); } #endif return 1; } void ifoFree_TT_SRPT(ifo_handle_t *ifofile) { if(!ifofile) return; if(ifofile->tt_srpt) { free(ifofile->tt_srpt->title); free(ifofile->tt_srpt); ifofile->tt_srpt = 0; } } int ifoRead_VTS_PTT_SRPT(ifo_handle_t *ifofile) { vts_ptt_srpt_t *vts_ptt_srpt; int info_length, i, j; uint32_t *data; if(!ifofile) return 0; if(!ifofile->vtsi_mat) return 0; if(ifofile->vtsi_mat->vts_ptt_srpt == 0) /* mandatory */ return 0; if(!DVDFileSeek_(ifofile->file, ifofile->vtsi_mat->vts_ptt_srpt * DVD_BLOCK_LEN)) return 0; vts_ptt_srpt = (vts_ptt_srpt_t *)malloc(sizeof(vts_ptt_srpt_t)); if(!vts_ptt_srpt) return 0; ifofile->vts_ptt_srpt = vts_ptt_srpt; if(!(DVDReadBytes(ifofile->file, vts_ptt_srpt, VTS_PTT_SRPT_SIZE))) { fprintf(stderr, "libdvdread: Unable to read PTT search table.\n"); free(vts_ptt_srpt); return 0; } B2N_16(vts_ptt_srpt->nr_of_srpts); B2N_32(vts_ptt_srpt->last_byte); CHECK_ZERO(vts_ptt_srpt->zero_1); assert(vts_ptt_srpt->nr_of_srpts != 0); assert(vts_ptt_srpt->nr_of_srpts < 100); // ?? info_length = vts_ptt_srpt->last_byte + 1 - VTS_PTT_SRPT_SIZE; data = (uint32_t *)malloc(info_length); if(!data) { free(vts_ptt_srpt); ifofile->vts_ptt_srpt = 0; return 0; } if(!(DVDReadBytes(ifofile->file, data, info_length))) { fprintf(stderr, "libdvdread: Unable to read PTT search table.\n"); free(vts_ptt_srpt); free(data); ifofile->vts_ptt_srpt = 0; return 0; } for(i = 0; i < vts_ptt_srpt->nr_of_srpts; i++) { B2N_32(data[i]); /* assert(data[i] + sizeof(ptt_info_t) <= vts_ptt_srpt->last_byte + 1); Magic Knight Rayearth Daybreak is mastered very strange and has Titles with 0 PTTs. They all have a data[i] offsets beyond the end of of the vts_ptt_srpt structure. */ assert(data[i] + sizeof(ptt_info_t) <= vts_ptt_srpt->last_byte + 1 + 4); } vts_ptt_srpt->title = malloc(vts_ptt_srpt->nr_of_srpts * sizeof(ttu_t)); if(!vts_ptt_srpt->title) { free(vts_ptt_srpt); free(data); ifofile->vts_ptt_srpt = 0; return 0; } for(i = 0; i < vts_ptt_srpt->nr_of_srpts; i++) { int n; if(i < vts_ptt_srpt->nr_of_srpts - 1) n = (data[i+1] - data[i]); else n = (vts_ptt_srpt->last_byte + 1 - data[i]); /* assert(n > 0 && (n % 4) == 0); Magic Knight Rayearth Daybreak is mastered very strange and has Titles with 0 PTTs. */ if(n < 0) n = 0; assert(n % 4 == 0); vts_ptt_srpt->title[i].nr_of_ptts = n / 4; vts_ptt_srpt->title[i].ptt = malloc(n * sizeof(ptt_info_t)); if(!vts_ptt_srpt->title[i].ptt) { for(n = 0; n < i; n++) free(vts_ptt_srpt->title[n].ptt); free(vts_ptt_srpt); free(data); ifofile->vts_ptt_srpt = 0; return 0; } for(j = 0; j < vts_ptt_srpt->title[i].nr_of_ptts; j++) { /* The assert placed here because of Magic Knight Rayearth Daybreak */ assert(data[i] + sizeof(ptt_info_t) <= vts_ptt_srpt->last_byte + 1); vts_ptt_srpt->title[i].ptt[j].pgcn = *(uint16_t*)(((char *)data) + data[i] + 4*j - VTS_PTT_SRPT_SIZE); vts_ptt_srpt->title[i].ptt[j].pgn = *(uint16_t*)(((char *)data) + data[i] + 4*j + 2 - VTS_PTT_SRPT_SIZE); } } free(data); for(i = 0; i < vts_ptt_srpt->nr_of_srpts; i++) { for(j = 0; j < vts_ptt_srpt->title[i].nr_of_ptts; j++) { B2N_16(vts_ptt_srpt->title[i].ptt[j].pgcn); B2N_16(vts_ptt_srpt->title[i].ptt[j].pgn); } } for(i = 0; i < vts_ptt_srpt->nr_of_srpts; i++) { assert(vts_ptt_srpt->title[i].nr_of_ptts < 1000); // ?? for(j = 0; j < vts_ptt_srpt->title[i].nr_of_ptts; j++) { assert(vts_ptt_srpt->title[i].ptt[j].pgcn != 0 ); assert(vts_ptt_srpt->title[i].ptt[j].pgcn < 1000); // ?? assert(vts_ptt_srpt->title[i].ptt[j].pgn != 0); assert(vts_ptt_srpt->title[i].ptt[j].pgn < 100); // ?? } } return 1; } void ifoFree_VTS_PTT_SRPT(ifo_handle_t *ifofile) { if(!ifofile) return; if(ifofile->vts_ptt_srpt) { int i; for(i = 0; i < ifofile->vts_ptt_srpt->nr_of_srpts; i++) free(ifofile->vts_ptt_srpt->title[i].ptt); free(ifofile->vts_ptt_srpt->title); free(ifofile->vts_ptt_srpt); ifofile->vts_ptt_srpt = 0; } } int ifoRead_PTL_MAIT(ifo_handle_t *ifofile) { ptl_mait_t *ptl_mait; int info_length; unsigned int i; if(!ifofile) return 0; if(!ifofile->vmgi_mat) return 0; if(ifofile->vmgi_mat->ptl_mait == 0) return 1; if(!DVDFileSeek_(ifofile->file, ifofile->vmgi_mat->ptl_mait * DVD_BLOCK_LEN)) return 0; ptl_mait = (ptl_mait_t *)malloc(sizeof(ptl_mait_t)); if(!ptl_mait) return 0; ifofile->ptl_mait = ptl_mait; if(!(DVDReadBytes(ifofile->file, ptl_mait, PTL_MAIT_SIZE))) { free(ptl_mait); ifofile->ptl_mait = 0; return 0; } B2N_16(ptl_mait->nr_of_countries); B2N_16(ptl_mait->nr_of_vtss); B2N_32(ptl_mait->last_byte); info_length = ptl_mait->last_byte + 1 - PTL_MAIT_SIZE; assert(ptl_mait->nr_of_countries != 0); assert(ptl_mait->nr_of_countries < 100); // ?? assert(ptl_mait->nr_of_vtss != 0); assert(ptl_mait->nr_of_vtss < 100); // ?? assert(ptl_mait->nr_of_countries * PTL_MAIT_COUNTRY_SIZE <= info_length); /* Change this to read and 'translate' the tables too. I.e don't read so much here */ ptl_mait->countries = (ptl_mait_country_t *)malloc(info_length); if(!ptl_mait->countries) { free(ptl_mait); ifofile->ptl_mait = 0; return 0; } if(!(DVDReadBytes(ifofile->file, ptl_mait->countries, info_length))) { fprintf(stderr, "libdvdread: Unable to read PTL_MAIT.\n"); ifoFree_PTL_MAIT(ifofile); return 0; } for(i = 0; i < ptl_mait->nr_of_countries; i++) { B2N_16(ptl_mait->countries[i].country_code); B2N_16(ptl_mait->countries[i].pf_ptl_mai_start_byte); } for(i = 0; i < ptl_mait->nr_of_countries; i++) { CHECK_ZERO(ptl_mait->countries[i].zero_1); CHECK_ZERO(ptl_mait->countries[i].zero_2); assert(ptl_mait->countries[i].pf_ptl_mai_start_byte + 8 * (ptl_mait->nr_of_vtss + 1) * 2 <= ptl_mait->last_byte + 1); } return 1; } void ifoFree_PTL_MAIT(ifo_handle_t *ifofile) { if(!ifofile) return; if(ifofile->ptl_mait) { free(ifofile->ptl_mait->countries); free(ifofile->ptl_mait); ifofile->ptl_mait = 0; } } int ifoRead_TITLE_C_ADT(ifo_handle_t *ifofile) { if(!ifofile) return 0; if(!ifofile->vtsi_mat) return 0; if(ifofile->vtsi_mat->vts_c_adt == 0) /* mandatory */ return 0; ifofile->vts_c_adt = (c_adt_t *)malloc(sizeof(c_adt_t)); if(!ifofile->vts_c_adt) return 0; if(!ifoRead_C_ADT_internal(ifofile, ifofile->vts_c_adt, ifofile->vtsi_mat->vts_c_adt)) { free(ifofile->vts_c_adt); ifofile->vts_c_adt = 0; return 0; } return 1; } int ifoRead_C_ADT(ifo_handle_t *ifofile) { unsigned int sector; if(!ifofile) return 0; if(ifofile->vmgi_mat) { if(ifofile->vmgi_mat->vmgm_c_adt == 0) return 1; sector = ifofile->vmgi_mat->vmgm_c_adt; } else if(ifofile->vtsi_mat) { if(ifofile->vtsi_mat->vtsm_c_adt == 0) return 1; sector = ifofile->vtsi_mat->vtsm_c_adt; } else { return 0; } ifofile->menu_c_adt = (c_adt_t *)malloc(sizeof(c_adt_t)); if(!ifofile->menu_c_adt) return 0; if(!ifoRead_C_ADT_internal(ifofile, ifofile->menu_c_adt, sector)) { free(ifofile->menu_c_adt); ifofile->menu_c_adt = 0; return 0; } return 1; } static int ifoRead_C_ADT_internal(ifo_handle_t *ifofile, c_adt_t *c_adt, unsigned int sector) { int i, info_length; if(!DVDFileSeek_(ifofile->file, sector * DVD_BLOCK_LEN)) return 0; if(!(DVDReadBytes(ifofile->file, c_adt, C_ADT_SIZE))) return 0; B2N_16(c_adt->nr_of_vobs); B2N_32(c_adt->last_byte); info_length = c_adt->last_byte + 1 - C_ADT_SIZE; CHECK_ZERO(c_adt->zero_1); /* assert(c_adt->nr_of_vobs > 0); Magic Knight Rayearth Daybreak is mastered very strange and has Titles with a VOBS that has no cells. */ assert(info_length % sizeof(cell_adr_t) == 0); /* assert(info_length / sizeof(cell_adr_t) >= c_adt->nr_of_vobs); Enemy of the State region 2 (de) has Titles where nr_of_vobs field is to high, they high ones are never referenced though. */ if(info_length / sizeof(cell_adr_t) < c_adt->nr_of_vobs) { fprintf(stderr, "libdvdread: *C_ADT nr_of_vobs > avaiable info entries\n"); c_adt->nr_of_vobs = info_length / sizeof(cell_adr_t); } c_adt->cell_adr_table = (cell_adr_t *)malloc(info_length); if(!c_adt->cell_adr_table) return 0; if(info_length && !(DVDReadBytes(ifofile->file, c_adt->cell_adr_table, info_length))) { free(c_adt->cell_adr_table); return 0; } for(i = 0; i < info_length/sizeof(cell_adr_t); i++) { B2N_16(c_adt->cell_adr_table[i].vob_id); B2N_32(c_adt->cell_adr_table[i].start_sector); B2N_32(c_adt->cell_adr_table[i].last_sector); CHECK_ZERO(c_adt->cell_adr_table[i].zero_1); assert(c_adt->cell_adr_table[i].vob_id > 0); assert(c_adt->cell_adr_table[i].vob_id <= c_adt->nr_of_vobs); assert(c_adt->cell_adr_table[i].cell_id > 0); assert(c_adt->cell_adr_table[i].start_sector < c_adt->cell_adr_table[i].last_sector); } return 1; } static void ifoFree_C_ADT_internal(c_adt_t *c_adt) { if(c_adt) { free(c_adt->cell_adr_table); free(c_adt); } } void ifoFree_C_ADT(ifo_handle_t *ifofile) { if(!ifofile) return; ifoFree_C_ADT_internal(ifofile->menu_c_adt); ifofile->menu_c_adt = 0; } void ifoFree_TITLE_C_ADT(ifo_handle_t *ifofile) { if(!ifofile) return; ifoFree_C_ADT_internal(ifofile->vts_c_adt); ifofile->vts_c_adt = 0; } int ifoRead_TITLE_VOBU_ADMAP(ifo_handle_t *ifofile) { if(!ifofile) return 0; if(!ifofile->vtsi_mat) return 0; if(ifofile->vtsi_mat->vts_vobu_admap == 0) /* mandatory */ return 0; ifofile->vts_vobu_admap = (vobu_admap_t *)malloc(sizeof(vobu_admap_t)); if(!ifofile->vts_vobu_admap) return 0; if(!ifoRead_VOBU_ADMAP_internal(ifofile, ifofile->vts_vobu_admap, ifofile->vtsi_mat->vts_vobu_admap)) { free(ifofile->vts_vobu_admap); ifofile->vts_vobu_admap = 0; return 0; } return 1; } int ifoRead_VOBU_ADMAP(ifo_handle_t *ifofile) { unsigned int sector; if(!ifofile) return 0; if(ifofile->vmgi_mat) { if(ifofile->vmgi_mat->vmgm_vobu_admap == 0) return 1; sector = ifofile->vmgi_mat->vmgm_vobu_admap; } else if(ifofile->vtsi_mat) { if(ifofile->vtsi_mat->vtsm_vobu_admap == 0) return 1; sector = ifofile->vtsi_mat->vtsm_vobu_admap; } else { return 0; } ifofile->menu_vobu_admap = (vobu_admap_t *)malloc(sizeof(vobu_admap_t)); if(!ifofile->menu_vobu_admap) return 0; if(!ifoRead_VOBU_ADMAP_internal(ifofile, ifofile->menu_vobu_admap, sector)) { free(ifofile->menu_vobu_admap); ifofile->menu_vobu_admap = 0; return 0; } return 1; } static int ifoRead_VOBU_ADMAP_internal(ifo_handle_t *ifofile, vobu_admap_t *vobu_admap, unsigned int sector) { unsigned int i; int info_length; if(!DVDFileSeek_(ifofile->file, sector * DVD_BLOCK_LEN)) return 0; if(!(DVDReadBytes(ifofile->file, vobu_admap, VOBU_ADMAP_SIZE))) return 0; B2N_32(vobu_admap->last_byte); info_length = vobu_admap->last_byte + 1 - VOBU_ADMAP_SIZE; /* assert(info_length > 0); Magic Knight Rayearth Daybreak is mastered very strange and has Titles with a VOBS that has no VOBUs. */ assert(info_length % sizeof(uint32_t) == 0); vobu_admap->vobu_start_sectors = (uint32_t *)malloc(info_length); if(!vobu_admap->vobu_start_sectors) { return 0; } if(info_length && !(DVDReadBytes(ifofile->file, vobu_admap->vobu_start_sectors, info_length))) { free(vobu_admap->vobu_start_sectors); return 0; } for(i = 0; i < info_length/sizeof(uint32_t); i++) B2N_32(vobu_admap->vobu_start_sectors[i]); return 1; } static void ifoFree_VOBU_ADMAP_internal(vobu_admap_t *vobu_admap) { if(vobu_admap) { free(vobu_admap->vobu_start_sectors); free(vobu_admap); } } void ifoFree_VOBU_ADMAP(ifo_handle_t *ifofile) { if(!ifofile) return; ifoFree_VOBU_ADMAP_internal(ifofile->menu_vobu_admap); ifofile->menu_vobu_admap = 0; } void ifoFree_TITLE_VOBU_ADMAP(ifo_handle_t *ifofile) { if(!ifofile) return; ifoFree_VOBU_ADMAP_internal(ifofile->vts_vobu_admap); ifofile->vts_vobu_admap = 0; } int ifoRead_PGCIT(ifo_handle_t *ifofile) { if(!ifofile) return 0; if(!ifofile->vtsi_mat) return 0; if(ifofile->vtsi_mat->vts_pgcit == 0) /* mandatory */ return 0; ifofile->vts_pgcit = (pgcit_t *)malloc(sizeof(pgcit_t)); if(!ifofile->vts_pgcit) return 0; if(!ifoRead_PGCIT_internal(ifofile, ifofile->vts_pgcit, ifofile->vtsi_mat->vts_pgcit * DVD_BLOCK_LEN)) { free(ifofile->vts_pgcit); ifofile->vts_pgcit = 0; return 0; } return 1; } static int ifoRead_PGCIT_internal(ifo_handle_t *ifofile, pgcit_t *pgcit, unsigned int offset) { int i, info_length; uint8_t *data, *ptr; if(!DVDFileSeek_(ifofile->file, offset)) return 0; if(!(DVDReadBytes(ifofile->file, pgcit, PGCIT_SIZE))) return 0; B2N_16(pgcit->nr_of_pgci_srp); B2N_32(pgcit->last_byte); CHECK_ZERO(pgcit->zero_1); /* assert(pgcit->nr_of_pgci_srp != 0); Magic Knight Rayearth Daybreak is mastered very strange and has Titles with 0 PTTs. */ assert(pgcit->nr_of_pgci_srp < 10000); // ?? seen max of 1338 info_length = pgcit->nr_of_pgci_srp * PGCI_SRP_SIZE; data = malloc(info_length); if(!data) return 0; if(info_length && !(DVDReadBytes(ifofile->file, data, info_length))) { free(data); return 0; } pgcit->pgci_srp = malloc(pgcit->nr_of_pgci_srp * sizeof(pgci_srp_t)); if(!pgcit->pgci_srp) { free(data); return 0; } ptr = data; for(i = 0; i < pgcit->nr_of_pgci_srp; i++) { memcpy(&pgcit->pgci_srp[i], ptr, PGCI_LU_SIZE); ptr += PGCI_LU_SIZE; B2N_16(pgcit->pgci_srp[i].ptl_id_mask); B2N_32(pgcit->pgci_srp[i].pgc_start_byte); assert(pgcit->pgci_srp[i].unknown1 == 0); } free(data); for(i = 0; i < pgcit->nr_of_pgci_srp; i++) assert(pgcit->pgci_srp[i].pgc_start_byte + PGC_SIZE <= pgcit->last_byte+1); for(i = 0; i < pgcit->nr_of_pgci_srp; i++) { pgcit->pgci_srp[i].pgc = malloc(sizeof(pgc_t)); if(!pgcit->pgci_srp[i].pgc) { int j; for(j = 0; j < i; j++) { ifoFree_PGC(pgcit->pgci_srp[j].pgc); free(pgcit->pgci_srp[j].pgc); } return 0; } if(!ifoRead_PGC(ifofile, pgcit->pgci_srp[i].pgc, offset + pgcit->pgci_srp[i].pgc_start_byte)) { int j; for(j = 0; j < i; j++) { ifoFree_PGC(pgcit->pgci_srp[j].pgc); free(pgcit->pgci_srp[j].pgc); } free(pgcit->pgci_srp); return 0; } } return 1; } static void ifoFree_PGCIT_internal(pgcit_t *pgcit) { if(pgcit) { int i; for(i = 0; i < pgcit->nr_of_pgci_srp; i++) ifoFree_PGC(pgcit->pgci_srp[i].pgc); free(pgcit->pgci_srp); } } void ifoFree_PGCIT(ifo_handle_t *ifofile) { if(!ifofile) return; if(ifofile->vts_pgcit) { ifoFree_PGCIT_internal(ifofile->vts_pgcit); free(ifofile->vts_pgcit); ifofile->vts_pgcit = 0; } } int ifoRead_PGCI_UT(ifo_handle_t *ifofile) { pgci_ut_t *pgci_ut; unsigned int sector; unsigned int i; int info_length; uint8_t *data, *ptr; if(!ifofile) return 0; if(ifofile->vmgi_mat) { if(ifofile->vmgi_mat->vmgm_pgci_ut == 0) return 1; sector = ifofile->vmgi_mat->vmgm_pgci_ut; } else if(ifofile->vtsi_mat) { if(ifofile->vtsi_mat->vtsm_pgci_ut == 0) return 1; sector = ifofile->vtsi_mat->vtsm_pgci_ut; } else { return 0; } ifofile->pgci_ut = (pgci_ut_t *)malloc(sizeof(pgci_ut_t)); if(!ifofile->pgci_ut) return 0; if(!DVDFileSeek_(ifofile->file, sector * DVD_BLOCK_LEN)) { free(ifofile->pgci_ut); ifofile->pgci_ut = 0; return 0; } if(!(DVDReadBytes(ifofile->file, ifofile->pgci_ut, PGCI_UT_SIZE))) { free(ifofile->pgci_ut); ifofile->pgci_ut = 0; return 0; } pgci_ut = ifofile->pgci_ut; B2N_16(pgci_ut->nr_of_lus); B2N_32(pgci_ut->last_byte); CHECK_ZERO(pgci_ut->zero_1); assert(pgci_ut->nr_of_lus != 0); assert(pgci_ut->nr_of_lus < 100); // ?? 3-4 ? assert((uint32_t)pgci_ut->nr_of_lus * PGCI_LU_SIZE < pgci_ut->last_byte); info_length = pgci_ut->nr_of_lus * PGCI_LU_SIZE; data = malloc(info_length); if(!data) { free(pgci_ut); ifofile->pgci_ut = 0; return 0; } if(!(DVDReadBytes(ifofile->file, data, info_length))) { free(data); free(pgci_ut); ifofile->pgci_ut = 0; return 0; } pgci_ut->lu = malloc(pgci_ut->nr_of_lus * sizeof(pgci_lu_t)); if(!pgci_ut->lu) { free(data); free(pgci_ut); ifofile->pgci_ut = 0; return 0; } ptr = data; for(i = 0; i < pgci_ut->nr_of_lus; i++) { memcpy(&pgci_ut->lu[i], ptr, PGCI_LU_SIZE); ptr += PGCI_LU_SIZE; B2N_16(pgci_ut->lu[i].lang_code); B2N_32(pgci_ut->lu[i].lang_start_byte); } free(data); for(i = 0; i < pgci_ut->nr_of_lus; i++) { CHECK_ZERO(pgci_ut->lu[i].zero_1); // Maybe this is only defined for v1.1 and later titles? /* If the bits in 'lu[i].exists' are enumerated abcd efgh then: VTS_x_yy.IFO VIDEO_TS.IFO a == 0x83 "Root" 0x82 "Title" b == 0x84 "Subpicture" c == 0x85 "Audio" d == 0x86 "Angle" e == 0x87 "PTT" */ assert((pgci_ut->lu[i].exists & 0x07) == 0); } for(i = 0; i < pgci_ut->nr_of_lus; i++) { pgci_ut->lu[i].pgcit = malloc(sizeof(pgcit_t)); if(!pgci_ut->lu[i].pgcit) { unsigned int j; for(j = 0; j < i; j++) { ifoFree_PGCIT_internal(pgci_ut->lu[j].pgcit); free(pgci_ut->lu[j].pgcit); } free(pgci_ut->lu); free(pgci_ut); ifofile->pgci_ut = 0; return 0; } if(!ifoRead_PGCIT_internal(ifofile, pgci_ut->lu[i].pgcit, sector * DVD_BLOCK_LEN + pgci_ut->lu[i].lang_start_byte)) { unsigned int j; for(j = 0; j < i; j++) { ifoFree_PGCIT_internal(pgci_ut->lu[j].pgcit); free(pgci_ut->lu[j].pgcit); } free(pgci_ut->lu[i].pgcit); free(pgci_ut->lu); free(pgci_ut); ifofile->pgci_ut = 0; return 0; } // FIXME: Iterate and verify that all menus that should exists accordingly // to pgci_ut->lu[i].exists really do? } return 1; } void ifoFree_PGCI_UT(ifo_handle_t *ifofile) { unsigned int i; if(!ifofile) return; if(ifofile->pgci_ut) { for(i = 0; i < ifofile->pgci_ut->nr_of_lus; i++) { ifoFree_PGCIT_internal(ifofile->pgci_ut->lu[i].pgcit); free(ifofile->pgci_ut->lu[i].pgcit); } free(ifofile->pgci_ut->lu); free(ifofile->pgci_ut); ifofile->pgci_ut = 0; } } static int ifoRead_VTS_ATTRIBUTES(ifo_handle_t *ifofile, vts_attributes_t *vts_attributes, unsigned int offset) { unsigned int i; if(!DVDFileSeek_(ifofile->file, offset)) return 0; if(!(DVDReadBytes(ifofile->file, vts_attributes, sizeof(vts_attributes_t)))) return 0; B2N_32(vts_attributes->last_byte); B2N_32(vts_attributes->vts_cat); B2N_16(vts_attributes->vtsm_audio_attr.lang_code); B2N_16(vts_attributes->vtsm_subp_attr.lang_code); for(i = 0; i < 8; i++) B2N_16(vts_attributes->vtstt_audio_attr[i].lang_code); for(i = 0; i < 32; i++) B2N_16(vts_attributes->vtstt_subp_attr[i].lang_code); CHECK_ZERO(vts_attributes->zero_1); CHECK_ZERO(vts_attributes->zero_2); CHECK_ZERO(vts_attributes->zero_3); CHECK_ZERO(vts_attributes->zero_4); CHECK_ZERO(vts_attributes->zero_5); CHECK_ZERO(vts_attributes->zero_6); CHECK_ZERO(vts_attributes->zero_7); assert(vts_attributes->nr_of_vtsm_audio_streams <= 1); assert(vts_attributes->nr_of_vtsm_subp_streams <= 1); assert(vts_attributes->nr_of_vtstt_audio_streams <= 8); for(i = vts_attributes->nr_of_vtstt_audio_streams; i < 8; i++) CHECK_ZERO(vts_attributes->vtstt_audio_attr[i]); assert(vts_attributes->nr_of_vtstt_subp_streams <= 32); { unsigned int nr_coded; assert(vts_attributes->last_byte + 1 >= VTS_ATTRIBUTES_MIN_SIZE); nr_coded = (vts_attributes->last_byte + 1 - VTS_ATTRIBUTES_MIN_SIZE)/6; // This is often nr_coded = 70, how do you know how many there really are? if(nr_coded > 32) { // We haven't read more from disk/file anyway nr_coded = 32; } assert(vts_attributes->nr_of_vtstt_subp_streams <= nr_coded); for(i = vts_attributes->nr_of_vtstt_subp_streams; i < nr_coded; i++) CHECK_ZERO(vts_attributes->vtstt_subp_attr[i]); } return 1; } int ifoRead_VTS_ATRT(ifo_handle_t *ifofile) { vts_atrt_t *vts_atrt; unsigned int i, info_length, sector; uint32_t *data; if(!ifofile) return 0; if(!ifofile->vmgi_mat) return 0; if(ifofile->vmgi_mat->vts_atrt == 0) /* mandatory */ return 0; sector = ifofile->vmgi_mat->vts_atrt; if(!DVDFileSeek_(ifofile->file, sector * DVD_BLOCK_LEN)) return 0; vts_atrt = (vts_atrt_t *)malloc(sizeof(vts_atrt_t)); if(!vts_atrt) return 0; ifofile->vts_atrt = vts_atrt; if(!(DVDReadBytes(ifofile->file, vts_atrt, VTS_ATRT_SIZE))) { free(vts_atrt); ifofile->vts_atrt = 0; return 0; } B2N_16(vts_atrt->nr_of_vtss); B2N_32(vts_atrt->last_byte); CHECK_ZERO(vts_atrt->zero_1); assert(vts_atrt->nr_of_vtss != 0); assert(vts_atrt->nr_of_vtss < 100); //?? assert((uint32_t)vts_atrt->nr_of_vtss * (4 + VTS_ATTRIBUTES_MIN_SIZE) + VTS_ATRT_SIZE < vts_atrt->last_byte + 1); info_length = vts_atrt->nr_of_vtss * sizeof(uint32_t); data = (uint32_t *)malloc(info_length); if(!data) { free(vts_atrt); ifofile->vts_atrt = 0; return 0; } if(!(DVDReadBytes(ifofile->file, data, info_length))) { free(data); free(vts_atrt); ifofile->vts_atrt = 0; return 0; } for(i = 0; i < vts_atrt->nr_of_vtss; i++) { B2N_32(data[i]); assert(data[i] + VTS_ATTRIBUTES_MIN_SIZE < vts_atrt->last_byte + 1); } info_length = vts_atrt->nr_of_vtss * sizeof(vts_attributes_t); vts_atrt->vts = (vts_attributes_t *)malloc(info_length); if(!vts_atrt->vts) { free(data); free(vts_atrt); ifofile->vts_atrt = 0; return 0; } for(i = 0; i < vts_atrt->nr_of_vtss; i++) { unsigned int offset = data[i]; if(!ifoRead_VTS_ATTRIBUTES(ifofile, &(vts_atrt->vts[i]), (sector * DVD_BLOCK_LEN) + offset)) { free(data); free(vts_atrt); ifofile->vts_atrt = 0; return 0; } // This assert cant be in ifoRead_VTS_ATTRIBUTES assert(offset + vts_atrt->vts[i].last_byte <= vts_atrt->last_byte + 1); // Is this check correct? } free(data); return 1; } void ifoFree_VTS_ATRT(ifo_handle_t *ifofile) { if(!ifofile) return; if(ifofile->vts_atrt) { free(ifofile->vts_atrt->vts); free(ifofile->vts_atrt); ifofile->vts_atrt = 0; } } int ifoRead_TXTDT_MGI(ifo_handle_t *ifofile) { txtdt_mgi_t *txtdt_mgi; if(!ifofile) return 0; if(!ifofile->vmgi_mat) return 0; /* Return successfully if there is nothing to read. */ if(ifofile->vmgi_mat->txtdt_mgi == 0) return 1; if(!DVDFileSeek_(ifofile->file, ifofile->vmgi_mat->txtdt_mgi * DVD_BLOCK_LEN)) return 0; txtdt_mgi = (txtdt_mgi_t *)malloc(sizeof(txtdt_mgi_t)); if(!txtdt_mgi) { return 0; } ifofile->txtdt_mgi = txtdt_mgi; if(!(DVDReadBytes(ifofile->file, txtdt_mgi, TXTDT_MGI_SIZE))) { fprintf(stderr, "libdvdread: Unable to read TXTDT_MGI.\n"); free(txtdt_mgi); ifofile->txtdt_mgi = 0; return 0; } // fprintf(stderr, "-- Not done yet --\n"); return 1; } void ifoFree_TXTDT_MGI(ifo_handle_t *ifofile) { if(!ifofile) return; if(ifofile->txtdt_mgi) { free(ifofile->txtdt_mgi); ifofile->txtdt_mgi = 0; } }