/***************************************************************************** * dvd_ifo.h: Structures for ifo parsing ***************************************************************************** * Copyright (C) 1999-2001 VideoLAN * $Id: ifo.h,v 1.4 2003/10/25 00:49:13 sam Exp $ * * Author: St閜hane Borel <stef@via.ecp.fr> * * based on: *  - libifo by Thomas Mirlacher <dent@cosy.sbg.ac.at> *  - IFO structure documentation by Thomas Mirlacher, Bj鰎n Englund, *  H錵an 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, USA. *****************************************************************************//***************************************************************************** * Common structures for Video Management and Video Title sets *****************************************************************************//* * Program Chain structures */typedef struct ifo_video_s{    uint8_t i_compression         ;/* 2; */    uint8_t i_system              ;/* 2; */    uint8_t i_ratio               ;/* 2; */    uint8_t i_perm_displ          ;/* 2; */    uint8_t i_line21_1            ;/* 1; */    uint8_t i_line21_2            ;/* 1; */    uint8_t i_source_res          ;/* 2; */    uint8_t i_letterboxed         ;/* 1; */    uint8_t i_mode                ;/* 1; */} ifo_video_t;/* Audio type information */typedef struct ifo_audio_s{    uint8_t i_coding_mode         ;/* 3; */    uint8_t i_multichannel_extension  ;/* 1; */    uint8_t i_type                ;/* 2; */    uint8_t i_appl_mode           ;/* 2; */    uint8_t i_quantization        ;/* 2; */    uint8_t i_sample_freq         ;/* 2; */    uint8_t i_test                ;/* 1; */    uint8_t i_num_channels        ;/* 3; */    uint16_t i_lang_code          ;/* 16;   // <char> description */    uint8_t i_foo                 ;/* 8;    // 0x00000000 ? */    uint8_t i_caption             ;/* 8; */    uint8_t i_bar                 ;/* 8;    // 0x00000000 ? */} ifo_audio_t;/* Audio Status */typedef struct audio_status_s{    uint8_t i_available;        /* 1 */    uint8_t i_position;         /* 7 */    uint8_t i_foo;              /* 8 */} audio_status_t;typedef struct ifo_spu_t{    uint16_t i_prefix             ;/* 16;   // 0x0100 ? */    uint16_t i_lang_code          ;/* 16;   // <char> description */    uint8_t i_foo                 ;/* 8;    // dont know */    uint8_t i_caption             ;/* 8;    // 0x00 ? */} ifo_spu_t;/* Subpicture status */typedef struct spu_status_s{    uint8_t i_available;        /*1*/    uint8_t i_position_43;      /*7*/    uint8_t i_position_wide;    /*8*/    uint8_t i_position_letter;  /*8*/    uint8_t i_position_pan;     /*8*/} spu_status_t;/* Ifo vitual machine Commands */typedef struct command_desc_s{    unsigned int    i_type      :3;    unsigned int    i_direct    :1;    unsigned int    i_cmd       :4;    unsigned int    i_dir_cmp   :1;    unsigned int    i_cmp       :3;    unsigned int    i_sub_cmd   :4;    union    {        uint8_t     pi_8[6];        uint16_t    pi_16[3];    } data;} command_desc_t;/* Program Chain Command Table  - start at i_pgc_com_tab_sbyte */typedef struct command_s{    uint16_t        i_pre_command_nb;               /* 2 bytes */    uint16_t        i_post_command_nb;              /* 2 bytes */    uint16_t        i_cell_command_nb;              /* 2 bytes *//*    char[2]         ??? */    uint64_t * p_pre_command;                       /* i_pre_com_nb * 8 bytes */    uint64_t * p_post_command;                      /* i_post_com_nb * 8 bytes */    uint64_t * p_cell_command;                      /* i_pre_com_nb * 8 bytes *//*    command_desc_t* p_cell_command;                 // i_cell_com_nb * 8 bytes *//*    command_desc_t* p_post_command;                 // i_post_com_nb * 8 bytes *//*    command_desc_t* p_cell_command;                 // i_cell_com_nb * 8 bytes */} command_t;/* Program Chain Map Table * - start at "i_pgc_prg_map_sbyte" */typedef struct chapter_map_s{    uint8_t *       pi_start_cell;              /* i_prg_nb * 1 byte  */} chapter_map_t;/* Cell Playback Information Table * we have a pointer to such a structure for each cell * - first start at "i_cell_play_inf_sbyte" */typedef struct cell_play_s{    /* This information concerns the currently selected cell */    uint16_t        i_category;                 /* 2 bytes */    uint8_t         i_still_time;               /* 1 byte; in seconds; ff=inf */    uint8_t         i_command_nb;               /* 1 byte; 0 = no com */    uint32_t        i_play_time;                /* 4 bytes */    uint32_t        i_first_sector;             /* 4 bytes */    uint32_t        i_first_ilvu_vobu_esector;  /* 4 bytes; ??? */    uint32_t        i_last_vobu_start_sector;   /* 4 bytes */    uint32_t        i_last_sector;              /* 4 bytes */} cell_play_t;/* Cell Position Information Table * we have a pointer to such a structure for each cell * - first start at "i_cell_pos_inf_sbyte" */typedef struct cell_pos_s{    /* This information concerns the currently selected cell */    uint16_t        i_vob_id;                   /* 2 bytes *//*    char            ??? */    uint8_t         i_cell_id;                  /* 1 byte */} cell_pos_t;/* Main structure for Program Chain * - start at i_fp_pgc_sbyte * - or at i_vmgm_pgci_sbyte in vmgm_pgci_srp_t */typedef struct title_s{    /* Global features of program chain *//*    char[2]         ??? */    uint8_t         i_chapter_nb;                   /* 1 byte */    uint8_t         i_cell_nb;                  /* 1 byte */    uint32_t        i_play_time;                /* 4 bytes */    uint32_t        i_prohibited_user_op;       /* 4 bytes */    audio_status_t  pi_audio_status[8];         /* 8*2 bytes */    spu_status_t    pi_spu_status[32];       /* 32*4 bytes */    uint16_t        i_next_title_num;              /* 2 bytes */    uint16_t        i_prev_title_num;              /* 2 bytes */    uint16_t        i_go_up_title_num;              /* 2 bytes */    uint8_t         i_still_time;               /* 1 byte ; in seconds */    uint8_t         i_play_mode;                /* 1 byte */    /* In video_ts.ifo, the 3 significant bytes of each color are     * preceded by 1 unsignificant byte */    uint32_t        pi_yuv_color[16];           /* 16*3 bytes */    /* Here come the start bytes of the following structures */    uint16_t        i_command_start_byte;            /* 2 bytes */    uint16_t        i_chapter_map_start_byte;            /* 2 bytes */    uint16_t        i_cell_play_start_byte;      /* 2 bytes */    uint16_t        i_cell_pos_start_byte;       /* 2 bytes */    /* Predefined structures */    command_t       command;    chapter_map_t   chapter_map;    cell_play_t*    p_cell_play;           /* i_cell_nb * 24 bytes */    cell_pos_t*     p_cell_pos;             /* i_cell_nb * 4 bytes */} title_t;/* * Menu PGCI Unit Table *//* Menu PGCI Language unit Descriptor */typedef struct unit_s{    uint16_t        i_lang_code;            /* 2 bytes (ISO-xx) *//*    char            ??? */    uint8_t         i_existence_mask;           /* 1 byte */    uint32_t        i_unit_inf_start_byte;                 /* 4 bytes */} unit_t;typedef struct unit_title_s{    uint8_t         i_category_mask;             /* 1 byte */    uint8_t         i_category;                  /* 1 byte */    uint16_t        i_parental_mask;                 /* 2 bytes */    uint32_t        i_title_start_byte;               /* 4 bytes */    title_t         title;} unit_title_t;/* Menu PGCI Language Unit Table * - start at i_lu_sbyte */typedef struct unit_inf_s{    uint16_t        i_title_nb;                   /* 2 bytes *//*    char[2]         ??? */    uint32_t        i_last_byte;                /* 4 bytes */    unit_title_t *  p_title;                      /* i_srp_nb * 8 bytes */} unit_inf_t;/* Main Struct for Menu PGCI * - start at i_*_pgci_ut_ssector */typedef struct title_unit_s{    uint16_t        i_unit_nb;                    /* 2 bytes; ??? *//*    char[2]         ??? */    uint32_t        i_last_byte;                   /* 4 bytes */    unit_t*         p_unit;                       /* i_lu_nb * 8 bytes */    unit_inf_t*     p_unit_inf;                 /* i_lu_nb * 8 bytes */} title_unit_t;/* * Cell Adress Table Information */typedef struct cell_map_s{    uint16_t        i_vob_id;                   /* 2 bytes */    uint8_t         i_cell_id;                  /* 1 byte *//*    char            ??? */    uint32_t        i_first_sector;             /* 4 bytes */    uint32_t        i_last_sector;              /* 4 bytes */} cell_map_t;typedef struct cell_inf_s{    uint16_t        i_vob_nb;                   /* 2 bytes *//*    char[2]         ??? */    uint32_t        i_last_byte;                /* 4 bytes */    uint16_t        i_cell_nb;                  /* not in ifo; computed */                                                /* with e_byte */    cell_map_t*     p_cell_map;} cell_inf_t;/* * VOBU Adress Map Table */typedef struct vobu_map_s{    uint32_t        i_last_byte;                   /* 4 bytes */    uint32_t *      pi_vobu_start_sector;            /* (nb of vobu) * 4 bytes */} vobu_map_t;/***************************************************************************** * Structures for Video Management (cf video_ts.ifo) *****************************************************************************//* * Video Manager Information Management Table */typedef struct manager_inf_s{    byte_t          psz_id[13];                 /* 12 bytes (DVDVIDEO-VMG) */    uint32_t        i_vmg_end_sector;                  /* 4 bytes *//*    char[12]        ??? */    uint32_t        i_vmg_inf_end_sector;                /* 4 bytes */