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-rw-r--r--dvdread/ifo_read.c2181
1 files changed, 2181 insertions, 0 deletions
diff --git a/dvdread/ifo_read.c b/dvdread/ifo_read.c
new file mode 100644
index 0000000..e58b913
--- /dev/null
+++ b/dvdread/ifo_read.c
@@ -0,0 +1,2181 @@
+/* -*- c-basic-offset: 2; indent-tabs-mode: nil -*- */
+/*
+ * Copyright (C) 2000, 2001, 2002, 2003
+ * Bj�rn Englund <[email protected]>,
+ * H�kan Hjort <[email protected]>
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#if defined(HAVE_INTTYPES_H)
+#include <inttypes.h>
+#elif defined(HAVE_STDINT_H)
+#include <stdint.h>
+#endif
+
+#include <string.h>
+#include <errno.h>
+
+#include "bswap.h"
+#include "ifo_types.h"
+#include "ifo_read.h"
+#include "dvd_reader.h"
+#include "dvdread_internal.h"
+
+#ifndef DVD_BLOCK_LEN
+#define DVD_BLOCK_LEN 2048
+#endif
+
+#ifndef NDEBUG
+#define CHECK_ZERO0(arg) \
+ if(arg != 0) { \
+ fprintf(stderr, "*** Zero check failed in %s:%i\n for %s = 0x%x\n", \
+ __FILE__, __LINE__, # arg, arg); \
+ }
+#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_ZERO0(arg) (void)(arg)
+#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 ifo_handle_t *ifoOpen_File(ifo_handle_t *ifofile, int title,
+ char *suffix);
+static ifo_handle_t *ifoOpenVMGI_File(ifo_handle_t *ifofile, char *suffix);
+static ifo_handle_t *ifoOpenVTSI_File(ifo_handle_t *ifofile, int title,
+ char *suffix);
+
+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 NULL;
+
+ memset(ifofile, 0, sizeof(ifo_handle_t));
+
+ ifofile->file = DVDOpenFile(dvd, title, DVD_READ_INFO_FILE);
+ if(!ifoOpen_File(ifofile, title, "IFO")) {
+ if(title) {
+ if(dvdread_verbose(dvd) >= 1) {
+ fprintf(stderr, "libdvdread: Can't open file VTS_%02d_0.%s.\n",
+ title, "IFO");
+ }
+ } else {
+ if(dvdread_verbose(dvd) >= 1) {
+ fprintf(stderr, "libdvdread: Can't open file VIDEO_TS.%s.\n", "IFO");
+ }
+ }
+ /* lower functions free the pointer, reallocate */
+ ifofile = (ifo_handle_t *)malloc(sizeof(ifo_handle_t));
+ if(!ifofile)
+ return NULL;
+
+ memset(ifofile, 0, sizeof(ifo_handle_t));
+
+ ifofile->file = DVDOpenFile(dvd, title, DVD_READ_INFO_BACKUP_FILE);
+ if(!ifoOpen_File(ifofile, title, "BUP")) {
+ if(title) {
+ if(dvdread_verbose(dvd) >= 1) {
+ fprintf(stderr, "libdvdread: Can't open file VTS_%02d_0.%s.\n",
+ title, "BUP");
+ }
+ } else {
+ if(dvdread_verbose(dvd) >= 1) {
+ fprintf(stderr, "libdvdread: Can't open file VIDEO_TS.%s.\n", "BUP");
+ }
+ }
+ return NULL;
+ }
+ }
+ return ifofile;
+}
+
+static ifo_handle_t *ifoOpen_File(ifo_handle_t *ifofile, int title,
+ char *suffix) {
+ if(!ifofile->file) {
+ free(ifofile);
+ return NULL;
+ }
+
+ /* 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)) {
+ if(dvdread_verbose(device_of_file(ifofile->file)) >= 0) {
+ fprintf(stderr, "libdvdread: Invalid main menu IFO (VIDEO_TS.%s).\n",
+ suffix);
+ }
+ ifoClose(ifofile);
+ return NULL;
+ }
+
+ ifoRead_PGCI_UT(ifofile);
+ ifoRead_PTL_MAIT(ifofile);
+
+ /* This is also mandatory. */
+ if(!ifoRead_VTS_ATRT(ifofile)) {
+ if(dvdread_verbose(device_of_file(ifofile->file)) >= 0) {
+ fprintf(stderr, "libdvdread: Invalid main menu IFO (VIDEO_TS.%s).\n",
+ suffix);
+ }
+ ifoClose(ifofile);
+ return NULL;
+ }
+
+ 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)) {
+ if(dvdread_verbose(device_of_file(ifofile->file)) >= 0) {
+ fprintf(stderr, "libdvdread: Invalid title IFO (VTS_%02d_0.%s).\n",
+ title, suffix);
+ }
+ ifoClose(ifofile);
+ return NULL;
+ }
+
+ ifoRead_PGCI_UT(ifofile);
+ ifoRead_VTS_TMAPT(ifofile);
+ ifoRead_C_ADT(ifofile);
+ ifoRead_VOBU_ADMAP(ifofile);
+
+ if(!ifoRead_TITLE_C_ADT(ifofile) || !ifoRead_TITLE_VOBU_ADMAP(ifofile)) {
+ if(dvdread_verbose(device_of_file(ifofile->file)) >= 0) {
+ fprintf(stderr, "libdvdread: Invalid title IFO (VTS_%02d_0.%s).\n",
+ title, suffix);
+ }
+ ifoClose(ifofile);
+ return NULL;
+ }
+
+ return ifofile;
+ }
+
+ if(title) {
+ if(dvdread_verbose(device_of_file(ifofile->file)) >= 0) {
+ fprintf(stderr, "libdvdread: Invalid IFO for title %d (VTS_%02d_0.%s).\n",
+ title, title, suffix);
+ }
+ } else {
+ if(dvdread_verbose(device_of_file(ifofile->file)) >= 0) {
+ fprintf(stderr, "libdvdread: Invalid IFO for VMGM (VIDEO_TS.%s).\n",
+ suffix);
+ }
+ }
+ ifoClose(ifofile);
+ return NULL;
+}
+
+
+ifo_handle_t *ifoOpenVMGI(dvd_reader_t *dvd) {
+ ifo_handle_t *ifofile;
+
+ ifofile = (ifo_handle_t *)malloc(sizeof(ifo_handle_t));
+ if(!ifofile)
+ return NULL;
+
+ memset(ifofile, 0, sizeof(ifo_handle_t));
+
+ ifofile->file = DVDOpenFile(dvd, 0, DVD_READ_INFO_FILE);
+ if(!ifoOpenVMGI_File(ifofile, "IFO")) {
+ if(dvdread_verbose(dvd) >= 1) {
+ fprintf(stderr, "libdvdread: Can't open file VIDEO_TS.IFO: %s\n",
+ strerror(errno));
+ }
+
+ /* lower functions free the pointer, reallocate */
+ ifofile = (ifo_handle_t *)malloc(sizeof(ifo_handle_t));
+ if(!ifofile)
+ return NULL;
+
+ memset(ifofile, 0, sizeof(ifo_handle_t));
+
+ ifofile->file = DVDOpenFile(dvd, 0, DVD_READ_INFO_BACKUP_FILE);
+ if(!ifoOpenVMGI_File(ifofile, "BUP"))
+ if(dvdread_verbose(dvd) >= 1) {
+ fprintf(stderr, "libdvdread: Can't open file VIDEO_TS.BUP: %s\n",
+ strerror(errno));
+ }
+ return NULL;
+ }
+ return ifofile;
+}
+
+static ifo_handle_t *ifoOpenVMGI_File(ifo_handle_t *ifofile, char *suffix) {
+ if(!ifofile->file) {
+ free(ifofile);
+ return NULL;
+ }
+
+ if(ifoRead_VMG(ifofile))
+ return ifofile;
+
+ if(dvdread_verbose(device_of_file(ifofile->file)) >= 0) {
+ fprintf(stderr, "libdvdread: Invalid main menu IFO (VIDEO_TS.%s).\n",
+ suffix);
+ }
+ ifoClose(ifofile);
+ return NULL;
+}
+
+
+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 NULL;
+
+ memset(ifofile, 0, sizeof(ifo_handle_t));
+
+ if(title <= 0 || title > 99) {
+ if(dvdread_verbose(dvd) >= 0) {
+ fprintf(stderr, "libdvdread: ifoOpenVTSI invalid title (%d).\n", title);
+ }
+ free(ifofile);
+ errno = EINVAL;
+ return NULL;
+ }
+
+ ifofile->file = DVDOpenFile(dvd, title, DVD_READ_INFO_FILE);
+ if(!ifoOpenVTSI_File(ifofile, title, "IFO")) {
+ if(dvdread_verbose(dvd) >= 1) {
+ fprintf(stderr, "libdvdread: Can't open file VTS_%02d_0.%s.\n", title, "IFO");
+ }
+ /* lower functions free the pointer, reallocate */
+ ifofile = (ifo_handle_t *)malloc(sizeof(ifo_handle_t));
+ if(!ifofile)
+ return NULL;
+
+ memset(ifofile, 0, sizeof(ifo_handle_t));
+
+ ifofile->file = DVDOpenFile(dvd, title, DVD_READ_INFO_BACKUP_FILE);
+ if(!ifoOpenVTSI_File(ifofile, title, "BUP"))
+ if(dvdread_verbose(dvd) >= 1) {
+ fprintf(stderr, "libdvdread: Can't open file VTS_%02d_0.%s.\n", title, "BUP");
+ }
+ return NULL;
+ }
+ return ifofile;
+}
+
+static ifo_handle_t *ifoOpenVTSI_File(ifo_handle_t* ifofile, int title, char *suffix) {
+ if(!ifofile->file) {
+ free(ifofile);
+ return NULL;
+ }
+
+ ifoRead_VTS(ifofile);
+ if(ifofile->vtsi_mat)
+ return ifofile;
+
+ if(dvdread_verbose(device_of_file(ifofile->file)) >= 0) {
+ fprintf(stderr, "libdvdread: Invalid IFO for title %d (VTS_%02d_0.%s).\n",
+ title, title, suffix);
+ }
+ ifoClose(ifofile);
+ return NULL;
+}
+
+
+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);
+ ifoFree_VTS_TMAPT(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);
+ CHECK_VALUE(vmgi_mat->vmg_last_sector != 0);
+ CHECK_VALUE(vmgi_mat->vmgi_last_sector != 0);
+ CHECK_VALUE(vmgi_mat->vmgi_last_sector * 2 <= vmgi_mat->vmg_last_sector);
+ CHECK_VALUE(vmgi_mat->vmgi_last_sector * 2 <= vmgi_mat->vmg_last_sector);
+ CHECK_VALUE(vmgi_mat->vmg_nr_of_volumes != 0);
+ CHECK_VALUE(vmgi_mat->vmg_this_volume_nr != 0);
+ CHECK_VALUE(vmgi_mat->vmg_this_volume_nr <= vmgi_mat->vmg_nr_of_volumes);
+ CHECK_VALUE(vmgi_mat->disc_side == 1 || vmgi_mat->disc_side == 2);
+ CHECK_VALUE(vmgi_mat->vmg_nr_of_title_sets != 0);
+ CHECK_VALUE(vmgi_mat->vmgi_last_byte >= 341);
+ CHECK_VALUE(vmgi_mat->vmgi_last_byte / DVD_BLOCK_LEN <=
+ vmgi_mat->vmgi_last_sector);
+ /* It seems that first_play_pgc is optional. */
+ CHECK_VALUE(vmgi_mat->first_play_pgc < vmgi_mat->vmgi_last_byte);
+ CHECK_VALUE(vmgi_mat->vmgm_vobs == 0 ||
+ (vmgi_mat->vmgm_vobs > vmgi_mat->vmgi_last_sector &&
+ vmgi_mat->vmgm_vobs < vmgi_mat->vmg_last_sector));
+ CHECK_VALUE(vmgi_mat->tt_srpt <= vmgi_mat->vmgi_last_sector);
+ CHECK_VALUE(vmgi_mat->vmgm_pgci_ut <= vmgi_mat->vmgi_last_sector);
+ CHECK_VALUE(vmgi_mat->ptl_mait <= vmgi_mat->vmgi_last_sector);
+ CHECK_VALUE(vmgi_mat->vts_atrt <= vmgi_mat->vmgi_last_sector);
+ CHECK_VALUE(vmgi_mat->txtdt_mgi <= vmgi_mat->vmgi_last_sector);
+ CHECK_VALUE(vmgi_mat->vmgm_c_adt <= vmgi_mat->vmgi_last_sector);
+ CHECK_VALUE(vmgi_mat->vmgm_vobu_admap <= vmgi_mat->vmgi_last_sector);
+
+ CHECK_VALUE(vmgi_mat->nr_of_vmgm_audio_streams <= 1);
+ CHECK_VALUE(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);
+ CHECK_ZERO(vtsi_mat->zero_21);
+ CHECK_VALUE(vtsi_mat->vtsi_last_sector*2 <= vtsi_mat->vts_last_sector);
+ CHECK_VALUE(vtsi_mat->vtsi_last_byte/DVD_BLOCK_LEN <= vtsi_mat->vtsi_last_sector);
+ CHECK_VALUE(vtsi_mat->vtsm_vobs == 0 ||
+ (vtsi_mat->vtsm_vobs > vtsi_mat->vtsi_last_sector &&
+ vtsi_mat->vtsm_vobs < vtsi_mat->vts_last_sector));
+ CHECK_VALUE(vtsi_mat->vtstt_vobs == 0 ||
+ (vtsi_mat->vtstt_vobs > vtsi_mat->vtsi_last_sector &&
+ vtsi_mat->vtstt_vobs < vtsi_mat->vts_last_sector));
+ CHECK_VALUE(vtsi_mat->vts_ptt_srpt <= vtsi_mat->vtsi_last_sector);
+ CHECK_VALUE(vtsi_mat->vts_pgcit <= vtsi_mat->vtsi_last_sector);
+ CHECK_VALUE(vtsi_mat->vtsm_pgci_ut <= vtsi_mat->vtsi_last_sector);
+ CHECK_VALUE(vtsi_mat->vts_tmapt <= vtsi_mat->vtsi_last_sector);
+ CHECK_VALUE(vtsi_mat->vtsm_c_adt <= vtsi_mat->vtsi_last_sector);
+ CHECK_VALUE(vtsi_mat->vtsm_vobu_admap <= vtsi_mat->vtsi_last_sector);
+ CHECK_VALUE(vtsi_mat->vts_c_adt <= vtsi_mat->vtsi_last_sector);
+ CHECK_VALUE(vtsi_mat->vts_vobu_admap <= vtsi_mat->vtsi_last_sector);
+
+ CHECK_VALUE(vtsi_mat->nr_of_vtsm_audio_streams <= 1);
+ CHECK_VALUE(vtsi_mat->nr_of_vtsm_subp_streams <= 1);
+
+ CHECK_VALUE(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]);
+
+ CHECK_VALUE(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]);
+
+ for(i = 0; i < 8; i++) {
+ CHECK_ZERO0(vtsi_mat->vts_mu_audio_attr[i].zero1);
+ CHECK_ZERO0(vtsi_mat->vts_mu_audio_attr[i].zero2);
+ CHECK_ZERO0(vtsi_mat->vts_mu_audio_attr[i].zero3);
+ CHECK_ZERO0(vtsi_mat->vts_mu_audio_attr[i].zero4);
+ CHECK_ZERO0(vtsi_mat->vts_mu_audio_attr[i].zero5);
+ CHECK_ZERO(vtsi_mat->vts_mu_audio_attr[i].zero6);
+ }
+
+ return 1;
+}
+
+
+static int ifoRead_PGC_COMMAND_TBL(ifo_handle_t *ifofile,
+ pgc_command_tbl_t *cmd_tbl,
+ unsigned int offset) {
+ unsigned int total;
+
+ 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);
+ B2N_16(cmd_tbl->last_byte);
+
+ total = cmd_tbl->nr_of_pre + cmd_tbl->nr_of_post + cmd_tbl->nr_of_cell;
+ CHECK_VALUE(PGC_COMMAND_TBL_SIZE + total * COMMAND_DATA_SIZE
+ <= cmd_tbl->last_byte + 1U);
+ CHECK_VALUE(total <= 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'. */
+ CHECK_VALUE(cell_playback[i].last_vobu_start_sector <=
+ cell_playback[i].last_sector);
+ CHECK_VALUE(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);
+ CHECK_VALUE(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); /* ??*/
+ CHECK_VALUE(pgc->program_map_offset == 0);
+ CHECK_VALUE(pgc->cell_playback_offset == 0);
+ CHECK_VALUE(pgc->cell_position_offset == 0);
+ } else {
+ CHECK_VALUE(pgc->program_map_offset != 0);
+ CHECK_VALUE(pgc->cell_playback_offset != 0);
+ CHECK_VALUE(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) {
+ if(pgc->nr_of_programs != 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;
+ }
+ } else {
+ pgc->program_map = NULL;
+ }
+
+ if(pgc->cell_playback_offset != 0) {
+ if(pgc->nr_of_cells != 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;
+ }
+ } else {
+ pgc->cell_playback = NULL;
+ }
+
+ if(pgc->cell_position_offset != 0) {
+ if(pgc->nr_of_cells != 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;
+ }
+ } 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 is optional after all. */
+ ifofile->first_play_pgc = 0;
+ if(ifofile->vmgi_mat->first_play_pgc == 0)
+ return 1;
+
+ 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))) {
+ if(dvdread_verbose(device_of_file(ifofile->file)) >= 1) {
+ 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))) {
+ if(dvdread_verbose(device_of_file(ifofile->file)) >= 1) {
+ 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);
+ CHECK_VALUE(tt_srpt->nr_of_srpts != 0);
+ CHECK_VALUE(tt_srpt->nr_of_srpts < 100); /*??*/
+ CHECK_VALUE(tt_srpt->nr_of_srpts * sizeof(title_info_t) <= info_length);
+
+ for(i = 0; i < tt_srpt->nr_of_srpts; i++) {
+ CHECK_VALUE(tt_srpt->title[i].pb_ty.zero_1 == 0);
+ CHECK_VALUE(tt_srpt->title[i].nr_of_angles != 0);
+ CHECK_VALUE(tt_srpt->title[i].nr_of_angles < 10);
+ /*CHECK_VALUE(tt_srpt->title[i].nr_of_ptts != 0);
+ / XXX: this assertion breaks Ghostbusters:*/
+ CHECK_VALUE(tt_srpt->title[i].nr_of_ptts < 1000); /*??*/
+ CHECK_VALUE(tt_srpt->title[i].title_set_nr != 0);
+ CHECK_VALUE(tt_srpt->title[i].title_set_nr < 100); /* ?? */
+ CHECK_VALUE(tt_srpt->title[i].vts_ttn != 0);
+ CHECK_VALUE(tt_srpt->title[i].vts_ttn < 100); /* ?? */
+ /*CHECK_VALUE(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))) {
+ if(dvdread_verbose(device_of_file(ifofile->file)) >= 1) {
+ 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);
+ CHECK_VALUE(vts_ptt_srpt->nr_of_srpts != 0);
+ CHECK_VALUE(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))) {
+ if(dvdread_verbose(device_of_file(ifofile->file)) >= 1) {
+ 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. */
+ CHECK_VALUE(data[i] + sizeof(ptt_info_t) <= vts_ptt_srpt->last_byte + 1 + 4);
+ }
+
+ vts_ptt_srpt->ttu_offset = data;
+
+ 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;
+ CHECK_VALUE(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 */
+ CHECK_VALUE(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);
+ }
+ }
+
+ 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++) {
+ CHECK_VALUE(vts_ptt_srpt->title[i].nr_of_ptts < 1000); /* ??*/
+ for(j = 0; j < vts_ptt_srpt->title[i].nr_of_ptts; j++) {
+ CHECK_VALUE(vts_ptt_srpt->title[i].ptt[j].pgcn != 0 );
+ CHECK_VALUE(vts_ptt_srpt->title[i].ptt[j].pgcn < 1000); /* ??*/
+ CHECK_VALUE(vts_ptt_srpt->title[i].ptt[j].pgn != 0);
+ CHECK_VALUE(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->ttu_offset);
+ 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, j;
+
+ 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);
+
+ CHECK_VALUE(ptl_mait->nr_of_countries != 0);
+ CHECK_VALUE(ptl_mait->nr_of_countries < 100); /* ?? */
+ CHECK_VALUE(ptl_mait->nr_of_vtss != 0);
+ CHECK_VALUE(ptl_mait->nr_of_vtss < 100); /* ?? */
+ CHECK_VALUE(ptl_mait->nr_of_countries * PTL_MAIT_COUNTRY_SIZE
+ <= ptl_mait->last_byte + 1 - PTL_MAIT_SIZE);
+
+ info_length = ptl_mait->nr_of_countries * sizeof(ptl_mait_country_t);
+ ptl_mait->countries = (ptl_mait_country_t *)malloc(info_length);
+ if(!ptl_mait->countries) {
+ free(ptl_mait);
+ ifofile->ptl_mait = 0;
+ return 0;
+ }
+
+ for(i = 0; i < ptl_mait->nr_of_countries; i++) {
+ if(!(DVDReadBytes(ifofile->file, &ptl_mait->countries[i], PTL_MAIT_COUNTRY_SIZE))) {
+ if(dvdread_verbose(device_of_file(ifofile->file)) >= 1) {
+ fprintf(stderr, "libdvdread: Unable to read PTL_MAIT.\n");
+ }
+ free(ptl_mait->countries);
+ free(ptl_mait);
+ ifofile->ptl_mait = 0;
+ 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);
+ CHECK_VALUE(ptl_mait->countries[i].pf_ptl_mai_start_byte +
+ 16U * (ptl_mait->nr_of_vtss + 1) <= ptl_mait->last_byte + 1U);
+ }
+
+ for(i = 0; i < ptl_mait->nr_of_countries; i++) {
+ uint16_t *pf_temp;
+
+ if(!DVDFileSeek_(ifofile->file,
+ ifofile->vmgi_mat->ptl_mait * DVD_BLOCK_LEN
+ + ptl_mait->countries[i].pf_ptl_mai_start_byte)) {
+ if(dvdread_verbose(device_of_file(ifofile->file)) >= 1) {
+ fprintf(stderr, "libdvdread: Unable to seak PTL_MAIT table.\n");
+ }
+ free(ptl_mait->countries);
+ free(ptl_mait);
+ return 0;
+ }
+ info_length = (ptl_mait->nr_of_vtss + 1) * sizeof(pf_level_t);
+ pf_temp = (uint16_t *)malloc(info_length);
+ if(!pf_temp) {
+ for(j = 0; j < i ; j++) {
+ free(ptl_mait->countries[j].pf_ptl_mai);
+ }
+ free(ptl_mait->countries);
+ free(ptl_mait);
+ return 0;
+ }
+ if(!(DVDReadBytes(ifofile->file, pf_temp, info_length))) {
+ if(dvdread_verbose(device_of_file(ifofile->file)) >= 1) {
+ fprintf(stderr, "libdvdread: Unable to read PTL_MAIT table.\n");
+ }
+ free(pf_temp);
+ for(j = 0; j < i ; j++) {
+ free(ptl_mait->countries[j].pf_ptl_mai);
+ }
+ free(ptl_mait->countries);
+ free(ptl_mait);
+ return 0;
+ }
+ for (j = 0; j < ((ptl_mait->nr_of_vtss + 1) * 8); j++) {
+ B2N_16(pf_temp[j]);
+ }
+ ptl_mait->countries[i].pf_ptl_mai = (pf_level_t *)malloc(info_length);
+ if(!ptl_mait->countries[i].pf_ptl_mai) {
+ free(pf_temp);
+ for(j = 0; j < i ; j++) {
+ free(ptl_mait->countries[j].pf_ptl_mai);
+ }
+ free(ptl_mait->countries);
+ free(ptl_mait);
+ return 0;
+ }
+ { /* Transpose the array so we can use C indexing. */
+ int level, vts;
+ for(level = 0; level < 8; level++) {
+ for(vts = 0; vts <= ptl_mait->nr_of_vtss; vts++) {
+ ptl_mait->countries[i].pf_ptl_mai[vts][level] =
+ pf_temp[(7-level)*(ptl_mait->nr_of_vtss+1) + vts];
+ }
+ }
+ free(pf_temp);
+ }
+ }
+ return 1;
+}
+
+void ifoFree_PTL_MAIT(ifo_handle_t *ifofile) {
+ unsigned int i;
+
+ if(!ifofile)
+ return;
+
+ if(ifofile->ptl_mait) {
+ for(i = 0; i < ifofile->ptl_mait->nr_of_countries; i++) {
+ free(ifofile->ptl_mait->countries[i].pf_ptl_mai);
+ }
+ free(ifofile->ptl_mait->countries);
+ free(ifofile->ptl_mait);
+ ifofile->ptl_mait = 0;
+ }
+}
+
+int ifoRead_VTS_TMAPT(ifo_handle_t *ifofile) {
+ vts_tmapt_t *vts_tmapt;
+ uint32_t *vts_tmap_srp;
+ unsigned int offset;
+ int info_length;
+ unsigned int i, j;
+
+ if(!ifofile)
+ return 0;
+
+ if(!ifofile->vtsi_mat)
+ return 0;
+
+ /* Seems to be optional, at least when there are no OneSequencial Titles */
+ if(ifofile->vtsi_mat->vts_tmapt == 0) {
+ ifofile->vts_tmapt = NULL;
+ return 1;
+ }
+
+ offset = ifofile->vtsi_mat->vts_tmapt * DVD_BLOCK_LEN;
+
+ if(!DVDFileSeek_(ifofile->file, offset))
+ return 0;
+
+ vts_tmapt = (vts_tmapt_t *)malloc(sizeof(vts_tmapt_t));
+ if(!vts_tmapt)
+ return 0;
+
+ ifofile->vts_tmapt = vts_tmapt;
+
+ if(!(DVDReadBytes(ifofile->file, vts_tmapt, VTS_TMAPT_SIZE))) {
+ if(dvdread_verbose(device_of_file(ifofile->file)) >= 1) {
+ fprintf(stderr, "libdvdread: Unable to read VTS_TMAPT.\n");
+ }
+ free(vts_tmapt);
+ ifofile->vts_tmapt = NULL;
+ return 0;
+ }
+
+ B2N_16(vts_tmapt->nr_of_tmaps);
+ B2N_32(vts_tmapt->last_byte);
+
+ CHECK_ZERO(vts_tmapt->zero_1);
+
+ info_length = vts_tmapt->nr_of_tmaps * 4;
+
+ vts_tmap_srp = (uint32_t *)malloc(info_length);
+ if(!vts_tmap_srp) {
+ free(vts_tmapt);
+ ifofile->vts_tmapt = NULL;
+ return 0;
+ }
+
+ vts_tmapt->tmap_offset = vts_tmap_srp;
+
+ if(!(DVDReadBytes(ifofile->file, vts_tmap_srp, info_length))) {
+ if(dvdread_verbose(device_of_file(ifofile->file)) >= 1) {
+ fprintf(stderr, "libdvdread: Unable to read VTS_TMAPT.\n");
+ }
+ free(vts_tmap_srp);
+ free(vts_tmapt);
+ ifofile->vts_tmapt = NULL;
+ return 0;
+ }
+
+ for (i = 0; i < vts_tmapt->nr_of_tmaps; i++) {
+ B2N_32(vts_tmap_srp[i]);
+ }
+
+
+ info_length = vts_tmapt->nr_of_tmaps * sizeof(vts_tmap_t);
+
+ vts_tmapt->tmap = (vts_tmap_t *)malloc(info_length);
+ if(!vts_tmapt->tmap) {
+ free(vts_tmap_srp);
+ free(vts_tmapt);
+ ifofile->vts_tmapt = NULL;
+ return 0;
+ }
+
+ memset(vts_tmapt->tmap, 0, info_length); /* So ifoFree_VTS_TMAPT works. */
+
+ for(i = 0; i < vts_tmapt->nr_of_tmaps; i++) {
+ if(!DVDFileSeek_(ifofile->file, offset + vts_tmap_srp[i])) {
+ ifoFree_VTS_TMAPT(ifofile);
+ return 0;
+ }
+
+ if(!(DVDReadBytes(ifofile->file, &vts_tmapt->tmap[i], VTS_TMAP_SIZE))) {
+ if(dvdread_verbose(device_of_file(ifofile->file)) >= 1) {
+ fprintf(stderr, "libdvdread: Unable to read VTS_TMAP.\n");
+ }
+ ifoFree_VTS_TMAPT(ifofile);
+ return 0;
+ }
+
+ B2N_16(vts_tmapt->tmap[i].nr_of_entries);
+ CHECK_ZERO(vts_tmapt->tmap[i].zero_1);
+
+ if(vts_tmapt->tmap[i].nr_of_entries == 0) { /* Early out if zero entries */
+ vts_tmapt->tmap[i].map_ent = NULL;
+ continue;
+ }
+
+ info_length = vts_tmapt->tmap[i].nr_of_entries * sizeof(map_ent_t);
+
+ vts_tmapt->tmap[i].map_ent = (map_ent_t *)malloc(info_length);
+ if(!vts_tmapt->tmap[i].map_ent) {
+ ifoFree_VTS_TMAPT(ifofile);
+ return 0;
+ }
+
+ if(!(DVDReadBytes(ifofile->file, vts_tmapt->tmap[i].map_ent, info_length))) {
+ if(dvdread_verbose(device_of_file(ifofile->file)) >= 1) {
+ fprintf(stderr, "libdvdread: Unable to read VTS_TMAP_ENT.\n");
+ }
+ ifoFree_VTS_TMAPT(ifofile);
+ return 0;
+ }
+
+ for(j = 0; j < vts_tmapt->tmap[i].nr_of_entries; j++)
+ B2N_32(vts_tmapt->tmap[i].map_ent[j]);
+ }
+
+ return 1;
+}
+
+void ifoFree_VTS_TMAPT(ifo_handle_t *ifofile) {
+ unsigned int i;
+
+ if(!ifofile)
+ return;
+
+ if(ifofile->vts_tmapt) {
+ for(i = 0; i < ifofile->vts_tmapt->nr_of_tmaps; i++)
+ if(ifofile->vts_tmapt->tmap[i].map_ent)
+ free(ifofile->vts_tmapt->tmap[i].map_ent);
+ free(ifofile->vts_tmapt->tmap);
+ free(ifofile->vts_tmapt->tmap_offset);
+ free(ifofile->vts_tmapt);
+ ifofile->vts_tmapt = NULL;
+ }
+}
+
+
+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. */
+ CHECK_VALUE(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) {
+ if(dvdread_verbose(device_of_file(ifofile->file)) >= 1) {
+ 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);
+ CHECK_VALUE(c_adt->cell_adr_table[i].vob_id > 0);
+ CHECK_VALUE(c_adt->cell_adr_table[i].vob_id <= c_adt->nr_of_vobs);
+ CHECK_VALUE(c_adt->cell_adr_table[i].cell_id > 0);
+ CHECK_VALUE(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. */
+ CHECK_VALUE(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. */
+ CHECK_VALUE(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_SRP_SIZE);
+ ptr += PGCI_SRP_SIZE;
+ B2N_16(pgcit->pgci_srp[i].ptl_id_mask);
+ B2N_32(pgcit->pgci_srp[i].pgc_start_byte);
+ CHECK_VALUE(pgcit->pgci_srp[i].unknown1 == 0);
+ }
+ free(data);
+
+ for(i = 0; i < pgcit->nr_of_pgci_srp; i++)
+ CHECK_VALUE(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);
+ }
+ free(pgcit->pgci_srp);
+ pgcit->pgci_srp = NULL;
+ 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);
+ pgcit->pgci_srp = NULL;
+ 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[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);
+ CHECK_VALUE(pgci_ut->nr_of_lus != 0);
+ CHECK_VALUE(pgci_ut->nr_of_lus < 100); /* ?? 3-4 ?*/
+ CHECK_VALUE((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++) {
+ /* 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"
+ */
+ CHECK_VALUE((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);
+ CHECK_VALUE(vts_attributes->nr_of_vtsm_audio_streams <= 1);
+ CHECK_VALUE(vts_attributes->nr_of_vtsm_subp_streams <= 1);
+ CHECK_VALUE(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]);
+ CHECK_VALUE(vts_attributes->nr_of_vtstt_subp_streams <= 32);
+ {
+ unsigned int nr_coded;
+ CHECK_VALUE(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;
+ }
+ CHECK_VALUE(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);
+ CHECK_VALUE(vts_atrt->nr_of_vtss != 0);
+ CHECK_VALUE(vts_atrt->nr_of_vtss < 100); /*??*/
+ CHECK_VALUE((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;
+ }
+
+ vts_atrt->vts_atrt_offsets = data;
+
+ 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]);
+ CHECK_VALUE(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*/
+ CHECK_VALUE(offset + vts_atrt->vts[i].last_byte <= vts_atrt->last_byte + 1);
+ /* Is this check correct?*/
+ }
+
+ 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->vts_atrt_offsets);
+ 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))) {
+ if(dvdread_verbose(device_of_file(ifofile->file)) >= 1) {
+ 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;
+ }
+}
+
generated by cgit v1.2.1 (git 2.18.0) at 2025-01-24 21:27:04 +0000