/* * Copyright (C) 2000, 2001 Björn Englund , * Håkan Hjort * * This file is part of libdvdread. * * libdvdread 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. * * libdvdread 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 libdvdread; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef LIBDVDREAD_IFO_TYPES_H #define LIBDVDREAD_IFO_TYPES_H #include #include #undef ATTRIBUTE_PACKED #if defined(__GNUC__) # if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95) # if (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)) && !defined(__clang__) # define ATTRIBUTE_PACKED __attribute__ ((packed,gcc_struct)) # else # define ATTRIBUTE_PACKED __attribute__ ((packed)) # endif # define PRAGMA_PACK 0 # endif #endif #if !defined(ATTRIBUTE_PACKED) #define ATTRIBUTE_PACKED #define PRAGMA_PACK 1 #endif #if PRAGMA_PACK #pragma pack(1) #endif /** * Common * * The following structures are used in both the VMGI and VTSI. */ /** * DVD Time Information. */ typedef struct { uint8_t hour; uint8_t minute; uint8_t second; uint8_t frame_u; /* The two high bits are the frame rate. */ } ATTRIBUTE_PACKED dvd_time_t; #define DVD_TIME_SIZE 4U /** * Type to store per-command data. */ typedef struct { uint8_t bytes[8]; } ATTRIBUTE_PACKED vm_cmd_t; #define COMMAND_DATA_SIZE 8U /** * Video Attributes. */ typedef struct { unsigned char mpeg_version : 2; unsigned char video_format : 2; unsigned char display_aspect_ratio : 2; unsigned char permitted_df : 2; unsigned char line21_cc_1 : 1; unsigned char line21_cc_2 : 1; unsigned char unknown1 : 1; unsigned char bit_rate : 1; unsigned char picture_size : 2; unsigned char letterboxed : 1; unsigned char film_mode : 1; } ATTRIBUTE_PACKED video_attr_t; #define VIDEO_ATTR_SIZE 2U /** * Audio code extension, see SPRM 17. */ typedef enum { DVD_AUDIO_CODE_EXT_UNSPECIFIED = 0, DVD_AUDIO_CODE_EXT_NORMAL = 1, DVD_AUDIO_CODE_EXT_VISUALLY_IMPAIRED = 2, DVD_AUDIO_CODE_EXT_DIRECTOR = 3, /**< director's comments */ DVD_AUDIO_CODE_EXT_ALT_DIRECTOR = 4, /**< alternate director's comments */ } dvd_audio_code_ext_t; /** * Audio Attributes. */ typedef struct { unsigned char audio_format : 3; unsigned char multichannel_extension : 1; unsigned char lang_type : 2; unsigned char application_mode : 2; unsigned char quantization : 2; unsigned char sample_frequency : 2; unsigned char unknown1 : 1; unsigned char channels : 3; uint16_t lang_code; uint8_t lang_extension; uint8_t code_extension; /**< dvd_audio_code_ext_t */ uint8_t unknown3; union { struct ATTRIBUTE_PACKED { unsigned char unknown4 : 1; unsigned char channel_assignment : 3; unsigned char version : 2; unsigned char mc_intro : 1; /* probably 0: true, 1:false */ unsigned char mode : 1; /* Karaoke mode 0: solo 1: duet */ } karaoke; struct ATTRIBUTE_PACKED { unsigned char unknown5 : 4; unsigned char dolby_encoded : 1; /* suitable for surround decoding */ unsigned char unknown6 : 3; } surround; } ATTRIBUTE_PACKED app_info; } ATTRIBUTE_PACKED audio_attr_t; #define AUDIO_ATTR_SIZE 8U /** * MultiChannel Extension */ typedef struct { unsigned char zero1 : 7; unsigned char ach0_gme : 1; unsigned char zero2 : 7; unsigned char ach1_gme : 1; unsigned char zero3 : 4; unsigned char ach2_gv1e : 1; unsigned char ach2_gv2e : 1; unsigned char ach2_gm1e : 1; unsigned char ach2_gm2e : 1; unsigned char zero4 : 4; unsigned char ach3_gv1e : 1; unsigned char ach3_gv2e : 1; unsigned char ach3_gmAe : 1; unsigned char ach3_se2e : 1; unsigned char zero5 : 4; unsigned char ach4_gv1e : 1; unsigned char ach4_gv2e : 1; unsigned char ach4_gmBe : 1; unsigned char ach4_seBe : 1; uint8_t zero6[19]; } ATTRIBUTE_PACKED multichannel_ext_t; #define MULTICHANNEL_EXT_SIZE 24U /** * Subpicture code extension, see SPRM 19. */ typedef enum { DVD_SUBP_CODE_EXT_UNSPECIFIED = 0, DVD_SUBP_CODE_EXT_NORMAL = 1, DVD_SUBP_CODE_EXT_LARGE = 2, DVD_SUBP_CODE_EXT_CHILDREN = 3, DVD_SUBP_CODE_EXT_NORMAL_CAPTIONS = 5, DVD_SUBP_CODE_EXT_LARGE_CAPTIONS = 6, DVD_SUBP_CODE_EXT_CHILDREN_CAPTIONS = 7, DVD_SUBP_CODE_EXT_FORCED = 9, DVD_SUBP_CODE_EXT_DIRECTOR = 13, /**< director's comments */ DVD_SUBP_CODE_EXT_LARGE_DIRECTOR = 14, /**< large director's comments */ DVD_SUBP_CODE_EXT_CHILDREN_DIRECTOR = 15, /**< director's comments for children */ } dvd_subp_code_ext_t; /** * Subpicture Attributes. */ typedef struct { /* * type: 0 not specified * 1 language * 2 other * coding mode: 0 run length * 1 extended * 2 other * language: indicates language if type == 1 * lang extension: if type == 1 contains the lang extension */ unsigned char code_mode : 3; unsigned char zero1 : 3; unsigned char type : 2; uint8_t zero2; uint16_t lang_code; uint8_t lang_extension; uint8_t code_extension; /**< dvd_subp_code_ext_t */ } ATTRIBUTE_PACKED subp_attr_t; #define SUBP_ATTR_SIZE 6U /** * PGC Command Table. */ typedef struct { uint16_t nr_of_pre; uint16_t nr_of_post; uint16_t nr_of_cell; uint16_t last_byte; vm_cmd_t *pre_cmds; vm_cmd_t *post_cmds; vm_cmd_t *cell_cmds; } ATTRIBUTE_PACKED pgc_command_tbl_t; #define PGC_COMMAND_TBL_SIZE 8U /** * PGC Program Map */ typedef uint8_t pgc_program_map_t; /** * Cell Playback Information. */ typedef struct { unsigned char block_mode : 2; unsigned char block_type : 2; unsigned char seamless_play : 1; unsigned char interleaved : 1; unsigned char stc_discontinuity: 1; unsigned char seamless_angle : 1; unsigned char zero_1 : 1; unsigned char playback_mode : 1; /**< When set, enter StillMode after each VOBU */ unsigned char restricted : 1; /**< ?? drop out of fastforward? */ unsigned char cell_type : 5; /** for karaoke, reserved otherwise */ uint8_t still_time; uint8_t cell_cmd_nr; dvd_time_t playback_time; uint32_t first_sector; uint32_t first_ilvu_end_sector; uint32_t last_vobu_start_sector; uint32_t last_sector; } ATTRIBUTE_PACKED cell_playback_t; #define CELL_PLAYBACK_SIZE 24U #define BLOCK_TYPE_NONE 0x0 #define BLOCK_TYPE_ANGLE_BLOCK 0x1 #define BLOCK_MODE_NOT_IN_BLOCK 0x0 #define BLOCK_MODE_FIRST_CELL 0x1 #define BLOCK_MODE_IN_BLOCK 0x2 #define BLOCK_MODE_LAST_CELL 0x3 /** * Cell Position Information. */ typedef struct { uint16_t vob_id_nr; uint8_t zero_1; uint8_t cell_nr; } ATTRIBUTE_PACKED cell_position_t; #define CELL_POSITION_SIZE 4U /** * User Operations. */ typedef struct { unsigned char zero : 7; /* 25-31 */ unsigned char video_pres_mode_change : 1; /* 24 */ unsigned char karaoke_audio_pres_mode_change : 1; /* 23 */ unsigned char angle_change : 1; unsigned char subpic_stream_change : 1; unsigned char audio_stream_change : 1; unsigned char pause_on : 1; unsigned char still_off : 1; unsigned char button_select_or_activate : 1; unsigned char resume : 1; /* 16 */ unsigned char chapter_menu_call : 1; /* 15 */ unsigned char angle_menu_call : 1; unsigned char audio_menu_call : 1; unsigned char subpic_menu_call : 1; unsigned char root_menu_call : 1; unsigned char title_menu_call : 1; unsigned char backward_scan : 1; unsigned char forward_scan : 1; /* 8 */ unsigned char next_pg_search : 1; /* 7 */ unsigned char prev_or_top_pg_search : 1; unsigned char time_or_chapter_search : 1; unsigned char go_up : 1; unsigned char stop : 1; unsigned char title_play : 1; unsigned char chapter_search_or_play : 1; unsigned char title_or_time_play : 1; /* 0 */ } ATTRIBUTE_PACKED user_ops_t; #define USER_OPS_SIZE 4U /** * Program Chain Information. */ typedef struct { uint16_t zero_1; uint8_t nr_of_programs; uint8_t nr_of_cells; dvd_time_t playback_time; user_ops_t prohibited_ops; uint16_t audio_control[8]; /* New type? */ uint32_t subp_control[32]; /* New type? */ uint16_t next_pgc_nr; uint16_t prev_pgc_nr; uint16_t goup_pgc_nr; uint8_t pg_playback_mode; uint8_t still_time; uint32_t palette[16]; /* New type struct {zero_1, Y, Cr, Cb} ? */ uint16_t command_tbl_offset; uint16_t program_map_offset; uint16_t cell_playback_offset; uint16_t cell_position_offset; pgc_command_tbl_t *command_tbl; pgc_program_map_t *program_map; cell_playback_t *cell_playback; cell_position_t *cell_position; int ref_count; } ATTRIBUTE_PACKED pgc_t; #define PGC_SIZE 236U /** * Program Chain Information Search Pointer. */ typedef struct { uint8_t entry_id; unsigned char block_mode : 2; unsigned char block_type : 2; unsigned char zero_1 : 4; uint16_t ptl_id_mask; uint32_t pgc_start_byte; pgc_t *pgc; } ATTRIBUTE_PACKED pgci_srp_t; #define PGCI_SRP_SIZE 8U /** * Program Chain Information Table. */ typedef struct { uint16_t nr_of_pgci_srp; uint16_t zero_1; uint32_t last_byte; pgci_srp_t *pgci_srp; int ref_count; } ATTRIBUTE_PACKED pgcit_t; #define PGCIT_SIZE 8U /** * Menu PGCI Language Unit. */ typedef struct { uint16_t lang_code; uint8_t lang_extension; uint8_t exists; uint32_t lang_start_byte; pgcit_t *pgcit; } ATTRIBUTE_PACKED pgci_lu_t; #define PGCI_LU_SIZE 8U /** * Menu PGCI Unit Table. */ typedef struct { uint16_t nr_of_lus; uint16_t zero_1; uint32_t last_byte; pgci_lu_t *lu; } ATTRIBUTE_PACKED pgci_ut_t; #define PGCI_UT_SIZE 8U /** * Cell Address Information. */ typedef struct { uint16_t vob_id; uint8_t cell_id; uint8_t zero_1; uint32_t start_sector; uint32_t last_sector; } ATTRIBUTE_PACKED cell_adr_t; #define CELL_ADDR_SIZE 12U /** * Cell Address Table. */ typedef struct { uint16_t nr_of_vobs; /* VOBs */ uint16_t zero_1; uint32_t last_byte; cell_adr_t *cell_adr_table; /* No explicit size given. */ } ATTRIBUTE_PACKED c_adt_t; #define C_ADT_SIZE 8U /** * VOBU Address Map. */ typedef struct { uint32_t last_byte; uint32_t *vobu_start_sectors; } ATTRIBUTE_PACKED vobu_admap_t; #define VOBU_ADMAP_SIZE 4U /** * VMGI * * The following structures relate to the Video Manager. */ /** * Video Manager Information Management Table. */ typedef struct { char vmg_identifier[12]; uint32_t vmg_last_sector; uint8_t zero_1[12]; uint32_t vmgi_last_sector; uint8_t zero_2; uint8_t specification_version; uint32_t vmg_category; uint16_t vmg_nr_of_volumes; uint16_t vmg_this_volume_nr; uint8_t disc_side; uint8_t zero_3[19]; uint16_t vmg_nr_of_title_sets; /* Number of VTSs. */ char provider_identifier[32]; uint64_t vmg_pos_code; uint8_t zero_4[24]; uint32_t vmgi_last_byte; uint32_t first_play_pgc; uint8_t zero_5[56]; uint32_t vmgm_vobs; /* sector */ uint32_t tt_srpt; /* sector */ uint32_t vmgm_pgci_ut; /* sector */ uint32_t ptl_mait; /* sector */ uint32_t vts_atrt; /* sector */ uint32_t txtdt_mgi; /* sector */ uint32_t vmgm_c_adt; /* sector */ uint32_t vmgm_vobu_admap; /* sector */ uint8_t zero_6[32]; video_attr_t vmgm_video_attr; uint8_t zero_7; uint8_t nr_of_vmgm_audio_streams; /* should be 0 or 1 */ audio_attr_t vmgm_audio_attr; audio_attr_t zero_8[7]; uint8_t zero_9[17]; uint8_t nr_of_vmgm_subp_streams; /* should be 0 or 1 */ subp_attr_t vmgm_subp_attr; subp_attr_t zero_10[27]; /* XXX: how much 'padding' here? */ } ATTRIBUTE_PACKED vmgi_mat_t; #define VMGI_MAT_SIZE 510U /* Downmix coefficients can be used to reduce 5.1 channels to stereo in DVD-Audio Discs */ /** Downmix equations * Left_out = Lf_left * Lf * + Rf_left * Rf * + C_left * C * + LFE_left * LFE * + Ls_left * Ls * + Rs_left * Rs; * * Right_out = Lf_right * Lf * + Rf_right * Rf * + C_right * C * + LFE_right * LFE * + Ls_right * Ls * + Rs_right * Rs; * * Where: * - Lf, Rf, C, LFE, Ls, Rs are the 5.1 input channels * - Left_out, Right_out are the stereo output channels * - Each coefficient (e.g. Lf_left, C_right) is an 8-bit gain factor */ typedef struct { /* it seems each entry is started and ended with padding */ uint16_t zero_1; /* each coefficient corresponds to stereo side for a channel in 5.1 */ uint8_t Lf_left; uint8_t Lf_right; uint8_t Rf_left; uint8_t Rf_right; uint8_t C_left; uint8_t C_right; uint8_t LFE_left; uint8_t LFE_right; uint8_t Ls_left; uint8_t Ls_right; uint8_t Rs_left; uint8_t Rs_right; uint16_t zero_2; } ATTRIBUTE_PACKED downmix_coeff_t; #define DOWNMIX_COEFF_SIZE 16U /** * SAMG * * The following structures relate to the Simple Audio Manager, exclusive to DVD-Audio discs */ /** * This is one of two of the DVD-A content managers, for simple audio dvd only players */ typedef struct { uint16_t zero_1; uint8_t group_num; uint8_t chapter_num; /* chapter number within group*/ uint32_t timestamp_pts; /* this is MPEG time, Not DVD time */ uint32_t chapter_len; uint32_t zero_2; uint8_t record_code; uint8_t bit_depth; uint8_t sampling_rate; uint8_t nr_channels; /* some DVD's made with authoring software keep downmix coefficients here */ /* since I do not have samples of commercial discs that do this, I will not include it */ uint8_t zero_3[20]; uint32_t start_sector_1; /*aob start sector*/ uint32_t start_sector_2; /*aob start sector is repeated again */ uint32_t end_sector; } ATTRIBUTE_PACKED samg_chapter_t; #define SAMG_CHAPTER_SIZE 52U typedef struct { char samg_identifier[12]; uint16_t nr_chapters; uint16_t specification_version; samg_chapter_t *samg_chapters; } ATTRIBUTE_PACKED samg_mat_t; #define SAMG_MAT_SIZE 16U /** * AMGI * * The following structures relate to the Audio Manager, exclusive to DVD-Audio discs */ /** * Audio Manager Information Management Table. */ typedef struct { char amg_identifier[12]; uint32_t amg_start_sector; uint8_t zero_1[12]; uint32_t amgi_last_sector; uint16_t specification_version; uint8_t zero_2[4]; uint16_t amg_nr_of_volumes; uint16_t amg_this_volume_nr; uint8_t disc_side; uint8_t zero_3[4]; uint8_t autoplay; uint32_t audio_sv_ifo_relative_p; uint16_t unknown_1; /* some discs have a value here, undocumented in DVD-Audio specs */ uint8_t zero_4[8]; uint8_t vmg_nr_of_title_sets; /* Number of video titlesets in audio zone. */ uint8_t amg_nr_of_title_sets; /* Number of audio titlesets in audio zone. */ uint8_t unknown_2[32]; /* may be set to zeros */ uint8_t unknown_3[8]; /* may be set to zeros */ uint8_t zero_5[24]; uint32_t amg_end_byte_address; uint8_t unknown_4[4]; /* may be set to zeros */ uint8_t zero_6[56]; uint16_t menu_prescence_1; /* may be set to zero, or some other value, optional field*/ uint8_t unknown_5[4]; uint16_t unknown_6; /* should be 0x01 */ uint8_t zero_7[2]; uint16_t amg_nr_of_zones; /* may be set to 0x02*/ uint8_t zero_8[2]; uint16_t menu_prescence_2; /* may be set to 0x03*/ uint8_t zero_9[48]; uint8_t last_sector_audio_sys_space; uint8_t zero_10[79]; uint8_t menu_prescence_3; /* will be set to 0x01*/ /* XXX lots of padding after this to complete the sector*/ } ATTRIBUTE_PACKED amgi_mat_t; #define AMGI_MAT_SIZE 337U /* Sector 2 may have video tracks, sector 3 will not. If there are no video tracks the tables will be the same*/ /*this struct repeats for every audio or video track*/ typedef struct { uint8_t type_and_rank; /*first nibble is type, second rank, from 1-9*/ uint8_t nr_chapters_in_title; uint8_t nr_visible_chapters_in_vts_title; /* this will be zeros in an audio record */ uint8_t zero_1; uint32_t len_audio_zone_pts; /* this is MPEG time, Not DVD time */ uint8_t group_property; /* in a video track, this is video titleset number, in audio its rank of group */ uint8_t title_property; /* in video track this is title number , in audio track this is rank of title*/ uint32_t ts_pointer_relative_sector; /* for ats or vts*/ } ATTRIBUTE_PACKED track_info_t; #define TRACK_INFO_SIZE 14U typedef struct { uint16_t nr_of_titles; uint16_t last_byte_in_table; track_info_t *tracks_info; } ATTRIBUTE_PACKED tracks_info_table_t; #define TRACKS_INFO_TABLE_SIZE 4U typedef struct { unsigned char zero_1 : 1; unsigned char multi_or_random_pgc_title : 1; /* 0: one sequential pgc title */ unsigned char jlc_exists_in_cell_cmd : 1; unsigned char jlc_exists_in_prepost_cmd : 1; unsigned char jlc_exists_in_button_cmd : 1; unsigned char jlc_exists_in_tt_dom : 1; unsigned char chapter_search_or_play : 1; /* UOP 1 */ unsigned char title_or_time_play : 1; /* UOP 0 */ } ATTRIBUTE_PACKED playback_type_t; #define PLAYBACK_TYPE_SIZE 1U /** * Title Information. */ typedef struct { playback_type_t pb_ty; uint8_t nr_of_angles; uint16_t nr_of_ptts; uint16_t parental_id; uint8_t title_set_nr; uint8_t vts_ttn; uint32_t title_set_sector; } ATTRIBUTE_PACKED title_info_t; #define TITLE_INFO_SIZE 12U /** * PartOfTitle Search Pointer Table. */ typedef struct { uint16_t nr_of_srpts; uint16_t zero_1; uint32_t last_byte; title_info_t *title; } ATTRIBUTE_PACKED tt_srpt_t; #define TT_SRPT_SIZE 8U /** * Parental Management Information Unit Table. * Level 1 (US: G), ..., 7 (US: NC-17), 8 */ #define PTL_MAIT_NUM_LEVEL 8 typedef uint16_t pf_level_t[PTL_MAIT_NUM_LEVEL]; /** * Parental Management Information Unit Table. */ typedef struct { uint16_t country_code; uint16_t zero_1; uint16_t pf_ptl_mai_start_byte; uint16_t zero_2; pf_level_t *pf_ptl_mai; /* table of (nr_of_vtss + 1), video_ts is first */ } ATTRIBUTE_PACKED ptl_mait_country_t; #define PTL_MAIT_COUNTRY_SIZE 8U /** * Parental Management Information Table. */ typedef struct { uint16_t nr_of_countries; uint16_t nr_of_vtss; uint32_t last_byte; ptl_mait_country_t *countries; } ATTRIBUTE_PACKED ptl_mait_t; #define PTL_MAIT_SIZE 8U /** * Video Title Set Attributes. */ typedef struct { uint32_t last_byte; uint32_t vts_cat; video_attr_t vtsm_vobs_attr; uint8_t zero_1; uint8_t nr_of_vtsm_audio_streams; /* should be 0 or 1 */ audio_attr_t vtsm_audio_attr; audio_attr_t zero_2[7]; uint8_t zero_3[16]; uint8_t zero_4; uint8_t nr_of_vtsm_subp_streams; /* should be 0 or 1 */ subp_attr_t vtsm_subp_attr; subp_attr_t zero_5[27]; uint8_t zero_6[2]; video_attr_t vtstt_vobs_video_attr; uint8_t zero_7; uint8_t nr_of_vtstt_audio_streams; audio_attr_t vtstt_audio_attr[8]; uint8_t zero_8[16]; uint8_t zero_9; uint8_t nr_of_vtstt_subp_streams; subp_attr_t vtstt_subp_attr[32]; } ATTRIBUTE_PACKED vts_attributes_t; #define VTS_ATTRIBUTES_SIZE 542U #define VTS_ATTRIBUTES_MIN_SIZE 356U /** * Video Title Set Attribute Table. */ typedef struct { uint16_t nr_of_vtss; uint16_t zero_1; uint32_t last_byte; vts_attributes_t *vts; uint32_t *vts_atrt_offsets; /* offsets table for each vts_attributes */ } ATTRIBUTE_PACKED vts_atrt_t; #define VTS_ATRT_SIZE 8U /** * Text Data. (Incomplete) */ typedef struct { uint32_t last_byte; /* offsets are relative here */ uint16_t offsets[100]; /* == nr_of_srpts + 1 (first is disc title) */ #if 0 uint16_t unknown; /* 0x48 ?? 0x48 words (16bit) info following */ uint16_t zero_1; uint8_t type_of_info; /* ?? 01 == disc, 02 == Title, 04 == Title part */ uint8_t unknown1; uint8_t unknown2; uint8_t unknown3; uint8_t unknown4; /* ?? always 0x30 language?, text format? */ uint8_t unknown5; uint16_t offset; /* from first */ char text[12]; /* ended by 0x09 */ #endif } ATTRIBUTE_PACKED txtdt_t; #define TXTDT_SIZE 204U /** * Text Data Language Unit. (Incomplete) */ typedef struct { uint16_t lang_code; uint8_t zero_1; uint8_t char_set; /* 0x00 reserved Unicode, 0x01 ISO 646, 0x10 JIS Roman & JIS Kanji, 0x11 ISO 8859-1, 0x12 Shift JIS Kanji */ uint32_t txtdt_start_byte; /* prt, rel start of vmg_txtdt_mgi */ txtdt_t *txtdt; } ATTRIBUTE_PACKED txtdt_lu_t; #define TXTDT_LU_SIZE 8U /** * Text Data Manager Information. (Incomplete) */ typedef struct { char disc_name[12]; uint16_t unknown1; uint16_t nr_of_language_units; uint32_t last_byte; txtdt_lu_t *lu; } ATTRIBUTE_PACKED txtdt_mgi_t; #define TXTDT_MGI_SIZE 20U /** * VTS * * Structures relating to the Video Title Set (VTS). */ /** * Video Title Set Information Management Table. */ typedef struct { char vts_identifier[12]; uint32_t vts_last_sector; uint8_t zero_1[12]; uint32_t vtsi_last_sector; uint8_t zero_2; uint8_t specification_version; uint32_t vts_category; uint16_t zero_3; uint16_t zero_4; uint8_t zero_5; uint8_t zero_6[19]; uint16_t zero_7; uint8_t zero_8[32]; uint64_t zero_9; uint8_t zero_10[24]; uint32_t vtsi_last_byte; uint32_t zero_11; uint8_t zero_12[56]; uint32_t vtsm_vobs; /* sector */ uint32_t vtstt_vobs; /* sector */ uint32_t vts_ptt_srpt; /* sector */ uint32_t vts_pgcit; /* sector */ uint32_t vtsm_pgci_ut; /* sector */ uint32_t vts_tmapt; /* sector */ uint32_t vtsm_c_adt; /* sector */ uint32_t vtsm_vobu_admap; /* sector */ uint32_t vts_c_adt; /* sector */ uint32_t vts_vobu_admap; /* sector */ uint8_t zero_13[24]; video_attr_t vtsm_video_attr; uint8_t zero_14; uint8_t nr_of_vtsm_audio_streams; /* should be 0 or 1 */ audio_attr_t vtsm_audio_attr; audio_attr_t zero_15[7]; uint8_t zero_16[17]; uint8_t nr_of_vtsm_subp_streams; /* should be 0 or 1 */ subp_attr_t vtsm_subp_attr; subp_attr_t zero_17[27]; uint8_t zero_18[2]; video_attr_t vts_video_attr; uint8_t zero_19; uint8_t nr_of_vts_audio_streams; audio_attr_t vts_audio_attr[8]; uint8_t zero_20[17]; uint8_t nr_of_vts_subp_streams; subp_attr_t vts_subp_attr[32]; uint16_t zero_21; multichannel_ext_t vts_mu_audio_attr[8]; /* XXX: how much 'padding' here, if any? */ } ATTRIBUTE_PACKED vtsi_mat_t; #define VTSI_MAT_SIZE 984U typedef struct { /* 0x0000 for lpcm or 0x0100 for mlp, DTS seems to be 0x0500 and has different fields*/ uint8_t encoding; uint8_t unknown1; /* for stereo 0f 16 bit, 1f 20 bit, 2f 24 bit*/ /* f is a placeholder for the nibbles that is used for channel groups*/ /* otherwise if its 5.1 channels each nibble represents a channel group (G1, G2),*/ uint8_t bitrate; /* 8f 44khz, 0f 48khz, 1f 96khz, 2f 192khz*/ /* otherwise if its 5.1 channels each nibble represents a channel group (G1, G2)*/ uint8_t sampling_frequency; /* 00 1 channel, 01 2 channels, 11 5.1 channels*/ uint8_t nr_channels; uint8_t unknown2; uint8_t zero[10]; } ATTRIBUTE_PACKED atsi_record_t; #define ATSI_RECORD_SIZE 16U /** * ATS * * Structures relating to the Audio Title Set (ATS). */ /** * Audio Title Set Information Management Table. Exclusive to DVD-Audio discs */ #define ATSI_RECORD_MAX_SIZE 8 #define DOWNMIX_COEFF_MAX_SIZE 16 typedef struct { char ats_identifier[12]; uint32_t ats_last_sector; /* last sector of ATS_XX_0.BUP*/ uint8_t zero_1[12]; uint32_t atsi_last_sector; /* last sector of ATS_XX_0.IFO*/ uint16_t specification_version; /* always 0x0012 */ uint32_t unknown_1; uint8_t zero_2[90]; uint32_t atsi_last_byte; /* last byte of sector 0, not the end of the file */ uint8_t zero_3[60]; uint32_t vtsm_vobs; /* may be zeros */ uint32_t atst_aobs; /* atst or vtst */ uint32_t vts_ptt_srpt; /* may be zeros */ uint32_t ats_pgci_ut; /* sector */ uint32_t vtsm_pgci_ut; /* may be zeros */ uint32_t vts_tmapt; /* sector */ uint32_t vtsm_c_adt; /* sector */ uint32_t vtsm_vobu_admap; /* sector */ uint32_t vts_c_adt; /* sector */ uint32_t vts_vobu_admap; /* sector */ uint8_t zero_4[24]; /* the majority, or even all of these entries may be zero*/ atsi_record_t atsi_record[ATSI_RECORD_MAX_SIZE]; downmix_coeff_t downmix_coefficients[DOWNMIX_COEFF_MAX_SIZE]; } ATTRIBUTE_PACKED atsi_mat_t; #define ATSI_MAT_SIZE 640U typedef struct { uint8_t srp_index; /* 1-based, top bit set marks the primary entry and clear the secondary */ uint8_t srp_flags; /* varies per entry, purpose not established */ uint8_t audio_encode_mode; /* either 0x00, 0x01 or 0x05, meaning not confirmed */ uint8_t reserved; /* always 0x00 */ uint32_t offset_record_table; /* byte offset of this title's record from the start of the title table */ } ATTRIBUTE_PACKED atsi_title_index_t; #define ATSI_TITLE_INDEX_SIZE 8U /* one per audio program in the title */ typedef struct { uint8_t prog_alloc_flags; /* top bit set on the first program of the title */ uint8_t prog_time_attr_flags; /* either 0x00, 0x10 or 0x30, meaning not confirmed */ uint16_t reserved_1; /* always 0x0000 */ uint8_t track_number_in_title; /* the cell this program starts on, 1-based */ uint8_t unknown_3; /* always 0x00 */ uint32_t first_pts_of_track; /* start PTS of the program's first cell, not always a title-relative timeline */ uint32_t length_pts_of_track; /* length of the program in PTS, the programs sum to length_pts */ uint8_t zero[6]; /* will be 0x00 */ } ATTRIBUTE_PACKED atsi_track_timestamp_t; #define ATSI_TRACK_TIMESTAMP_SIZE 20U /* this will come after all of the track timstamps, a set of 12byte sector pointer records. One for each track*/ typedef struct { uint8_t cell_index; /* 1-based, the first cell of a program is 0x01 */ uint8_t cell_type; /* 0x00 for an audio cell, other types not seen */ uint16_t reserved; /* always 0x0000 */ uint32_t start_sector; /* first sector, relative to the first AOB file */ uint32_t end_sector; /* last sector of the cell, relative to the first AOB file */ } ATTRIBUTE_PACKED atsi_track_pointer_t; #define ATSI_TRACK_POINTER_SIZE 12U /** * One entry per audio program. start_value and end_value give the first and * last byte of this program's records in the dlist table that follows. The * first entry starts right after this table, so its start_value equals the * table's byte length, 6 per program. */ typedef struct { uint8_t asvu_n; /* 1-based ASVU number holding this program's stills, several programs may share one */ struct ATTRIBUTE_PACKED { uint8_t order : 2; /* only 0 (sequential) seen */ uint8_t timing : 2; /* 0 timed slideshow, 1 user browsable */ uint8_t zero : 4; } dmod; uint16_t start_value; /* first byte of this entry */ uint16_t end_value; /* last byte of this entry */ } ATTRIBUTE_PACKED ats_pg_asv_pbi_srp_t; #define ATS_PG_ASV_PBI_SRP_SIZE 6U /** * One still picture. These records follow the entry table and run up to the * largest end_value in that table. asv_number starts again at 1 for each still * video unit. display_timing holds the picture's MPEG time in slideshow mode * and is 0 in browsable mode. */ typedef struct { uint8_t asv_number; /* the still's number within its unit, restarting at 1 each unit */ uint8_t fosl_btnn; /* probably the initial button number, only 0x00 seen */ uint8_t unknown_a; /* 0 in slideshow mode, a small often sequential value in browsable mode, maybe a menu page marker */ uint8_t track_nr; /* on a shared slideshow, which track the still belongs to, unused when each track has its own stills */ uint32_t display_timing; /* when the still is shown, an MPEG PTS, 0 in browsable mode */ uint8_t start_transition_mode; /* probably a transition effect, only 0x00 seen */ uint8_t termination_transition_mode; /* probably a transition effect, only 0x00 seen */ } ATTRIBUTE_PACKED asv_dlist_t; #define ASV_DLIST_SIZE 10U typedef struct { /* the address field positions below hold for the common layout, some discs * arrange them differently */ uint16_t header_flags; /* only 0x0000 seen */ uint8_t nr_tracks; /* number of audio programs in this title */ uint8_t nr_pointer_records; /* number of cell records */ uint32_t length_pts; /* total play time of the title, MPEG PTS */ uint16_t reserved_1; /* always 0x0000 */ uint16_t ats_pgit_sa; /* always 0x0010, the low 12 bits look like a byte offset but this is untested */ uint16_t start_sector_pointers_table; /* byte offset of the cell info table, from title record start */ uint16_t ats_asv_pbit_sa; /* byte offset of the still video table, 0x0000 when the title has no stills */ atsi_track_timestamp_t *atsi_track_timestamp_rows; /*length determined by nr_tracks*/ atsi_track_pointer_t *atsi_track_pointer_rows; /* these entries only exist when theres an ASVS */ ats_pg_asv_pbi_srp_t *ats_pg_asv_pbi_srp; /* one per audio program */ asv_dlist_t *dlist; /* runs up to the largest end_value in the entries above */ } ATTRIBUTE_PACKED atsi_title_record_t; #define ATSI_TITLE_ROW_TABLE_SIZE 16U typedef struct { uint16_t nr_titles; uint16_t zero_1; uint32_t last_byte_address; atsi_title_index_t *atsi_index_rows; /* length determined by nr_titles*/ atsi_title_record_t *atsi_title_row_tables; /* length determined by nr_titles*/ } ATTRIBUTE_PACKED atsi_title_table_t; #define ATSI_TITLE_TABLE_SIZE 8U /** * ASVS * * Structures relating to the Audio Still Video Set (ASVS). */ /** * An ASVU groups the still pictures (P_VOBs) that are loaded before the * matching audio program plays. Each P_VOB is one still I-picture. * * ASV_SRPT addressing: each pointer is an offset from the parent ASVU * ref_start_sector, so the still sits at ref_start_sector + (value & 0x7fff). * The high bit (0x8000) does not select an addressing mode. Some discs set it * on every pointer and some leave it clear, and either way the offset is * counted from ref_start_sector. */ /* general information for one Audio Still Video Unit */ typedef struct { uint8_t p_vob_ns; /* number of still pictures in this unit */ uint8_t unknown_1; uint16_t start_p_vob_number; /* number of this unit's first still picture, 1-based */ uint16_t zero_1; uint16_t ref_start_sector; /* base sector the unit's relative pointers count from */ } ATTRIBUTE_PACKED asvu_gi_t; #define ASVU_GI_SIZE 8U #define ASVU_GI_MAX_SIZE 99U /* search pointer to one still picture, see the addressing note above */ typedef uint16_t asv_srpt_t; #define ASV_SRPT_SIZE 2U /** * Audio Still Video Set Management Table. Exclusive to DVD-Audio discs */ typedef struct { char asvs_identifier[12]; /* DVDAUDIOASVS */ uint16_t asvs_nr_of_asvus; /* number of still video units in asvu_gi */ uint16_t specification_version; /* always 0x0012 */ uint16_t zero_1; uint16_t asvu_atr; /* unit attributes, only 0x0002 seen */ uint16_t zero_2; uint16_t p_vobs_ea; /* end of the still picture area, in sectors */ uint32_t p_vobs_sp_plt[16]; /* sub-picture palette, 16 colours, default 0x00108080 */ uint8_t unknown_2[8]; /* trailing 8 bytes, usually more palette words */ asvu_gi_t asvu_gi[ASVU_GI_MAX_SIZE]; /* size determined by asvs_nr_of_asvus */ asv_srpt_t *asv_srpt; /* length is the sum of p_vob_ns over asvu_gi */ } ATTRIBUTE_PACKED asvs_mat_t; #define ASVS_MAT_SIZE 888U /** * PartOfTitle Unit Information. */ typedef struct { uint16_t pgcn; uint16_t pgn; } ATTRIBUTE_PACKED ptt_info_t; #define PTT_INFO_SIZE 4U /** * PartOfTitle Information. */ typedef struct { uint16_t nr_of_ptts; ptt_info_t *ptt; } ATTRIBUTE_PACKED ttu_t; #define TTU_SIZE 2U /** * PartOfTitle Search Pointer Table. */ typedef struct { uint16_t nr_of_srpts; uint16_t zero_1; uint32_t last_byte; ttu_t *title; uint32_t *ttu_offset; /* offset table for each ttu */ } ATTRIBUTE_PACKED vts_ptt_srpt_t; #define VTS_PTT_SRPT_SIZE 8U /** * Time Map Entry. */ /* Should this be bit field at all or just the uint32_t? */ typedef uint32_t map_ent_t; /** * Time Map. */ typedef struct { uint8_t tmu; /* Time unit, in seconds */ uint8_t zero_1; uint16_t nr_of_entries; map_ent_t *map_ent; } ATTRIBUTE_PACKED vts_tmap_t; #define VTS_TMAP_SIZE 4U /** * Time Map Table. */ typedef struct { uint16_t nr_of_tmaps; uint16_t zero_1; uint32_t last_byte; vts_tmap_t *tmap; uint32_t *tmap_offset; /* offset table for each tmap */ } ATTRIBUTE_PACKED vts_tmapt_t; #define VTS_TMAPT_SIZE 8U /** * DVD-VR Structures * * Structures in the DVD-VR format (DVD-R, DVD-RW, DVD+RW, DVD-RAM) * For DVDs produced with a DVD-VR recorder, which can be a cam-corder or something that resembles a dvd-player */ typedef struct { uint8_t supported; /* Encrypted Title Key Status */ uint8_t title_key[8];/* This needs to be decrypted using media key */ } ATTRIBUTE_PACKED cprm_info_t; #define CPRM_INFO_SIZE 9U typedef struct { /* Suffix numbers are decimal offsets */ /* 0 */ char id[12]; uint32_t vmg_ea; /* end address */ uint8_t zero_16[12]; uint32_t vmgi_ea; /* includes playlist info after this structure */ uint16_t version; /* specification version */ /* 34 */ /* Different from DVD-Video from here */ uint8_t zero_34[30]; uint8_t tm_zone; /* time zone */ uint16_t still_tm; /* still time for still pictures */ uint8_t txt_encoding; /* as per VideoTextDataUsage.pdf */ uint8_t data_68[30]; /* 98 */ char disc_info1[64]; /* format name, or copy of disc_info2. */ char disc_info2[64]; /* format name, time or user label.. */ uint8_t zero_226[30]; /* 256 */ uint32_t org_pgci_sa; /* original program chain start address */ uint32_t org_pgci_ea; /* end address for the org_pgci */ uint8_t unknown_264[7]; cprm_info_t cprm_info; uint8_t zero_280[24]; /* 304 */ uint32_t ud_pgcit_sa; /* user defined program chain information table */ uint32_t info_308_sa; /* ? start address */ uint32_t info_312_sa; uint32_t info_316_sa; /* ? start address */ uint8_t zero_320[32]; uint32_t txtdt_mg_sa; /* extra attributes for programs (chan id etc.) */ uint32_t mnfit_sa; /* manufacturer information table */ uint8_t zero_360[152]; } ATTRIBUTE_PACKED rtav_vmgi_t; #define RTAV_VMGI_SIZE 512U typedef struct { uint8_t audio_attr[3]; } ATTRIBUTE_PACKED audio_attr_vr_t; typedef struct { uint8_t pgtm[5]; } ATTRIBUTE_PACKED pgtm_t; /* used throughout the program for timestamps */ typedef struct { uint32_t ptm; uint16_t ptm_extra; /* extra to DSI pkts */ } ATTRIBUTE_PACKED ptm_t; typedef struct { uint8_t data[12]; } ATTRIBUTE_PACKED adj_vob_t; #define ADJ_VOB_SIZE 12U typedef struct { uint16_t vobu_entn; /* entry vobu */ uint8_t tm_diff; /* time difference */ uint32_t vobu_adr; /* time difference */ } ATTRIBUTE_PACKED time_info_t; #define TIME_INFO_SIZE 7U typedef struct { uint8_t data1; /* only 14 bits are used for size, * but use full 16 for easy access. */ uint16_t vobu_size; } ATTRIBUTE_PACKED vobu_info_t; #define VOBU_INFO_SIZE 3U typedef struct { uint16_t vob_attr; pgtm_t vob_timestamp; uint8_t data1; uint8_t vob_format_id; ptm_t vob_v_s_ptm; ptm_t vob_v_e_ptm; } ATTRIBUTE_PACKED vvob_t; /* Virtual VOB */ #define VVOB_SIZE 21U typedef struct { uint16_t nr_of_time_info; uint16_t nr_of_vobu_info; uint16_t time_offset; uint32_t vob_offset; time_info_t* time_infos; vobu_info_t* vobu_infos; } ATTRIBUTE_PACKED vobu_map_t; #define VOBU_MAP_SIZE 10U /* This struct can not be packed, since adj_info may be skipped */ typedef struct { vvob_t header; /* The 21-byte header */ /* Always allocated. Contains valid data ONLY if (header.vob_attr & 0x80) */ /* optional */ adj_vob_t adj_info; /* The Optional ADJ block */ /* optional */ vobu_map_t map; /* The Time Map */ } pgi_t; typedef struct { uint16_t video_attr; uint8_t nr_of_audio_streams; uint8_t data1; audio_attr_vr_t audio_attr0; audio_attr_vr_t audio_attr1; uint8_t data2[50]; } ATTRIBUTE_PACKED vob_format_t; #define VOB_FORMAT_SIZE 60U /* codec settings, done automatically by demuxer */ typedef struct { uint16_t zero1; uint8_t nr_of_pgi; uint8_t nr_of_vob_formats; uint32_t len_org_pgci; /* length of PGCI + PGC_GI */ vob_format_t* vob_formats; } ATTRIBUTE_PACKED pgci_t; /* Program Info Table */ #define PGCI_SIZE 8U /* this defines individual video recordings (clips, programs) */ typedef struct { uint16_t nr_of_programs; uint32_t* program_offsets; /* vobu start addresses */ pgi_t* pgi; } ATTRIBUTE_PACKED pgc_gi_t; /* program locations table */ #define PGC_GI_SIZE 2U typedef struct { uint8_t data1; uint8_t data2; uint16_t nr_of_programs; /* Num programs in program set */ char label[64]; /* ASCII. Might not be NUL terminated */ char title[64]; /* Could be same as label, NUL, or another charset */ uint16_t prog_set_id; /* On LG V1.1 discs this is program set ID */ uint16_t first_prog_id; /* ID of first program in this program set */ char data3[6]; } ATTRIBUTE_PACKED ud_pgci_t; #define UD_PGCI_SIZE 142U typedef struct { uint8_t ep_ty; /* type */ ptm_t ep_ptm; /* entry point time pts */ } ATTRIBUTE_PACKED m_c_epi_t; #define M_C_EPI_SIZE 7U typedef struct { uint8_t type; uint8_t reserved; union { struct { uint8_t group_id; uint8_t start_image; } still_id; uint16_t m_vobi_srpn; }; uint8_t end_image; /* will be zero if type is movie cell */ uint8_t c_epi_n; /* used to allocate m_c_epi */ ptm_t c_v_s_ptm; ptm_t c_v_e_ptm; m_c_epi_t* m_c_epi; /* movie cell entry points. seekable chapters */ } ATTRIBUTE_PACKED m_c_gi_t; #define M_C_GI_SIZE 18U #define MOVIE_CELL_TYPE 0 #define STILL_CELL_TYPE 2 /* this is like a playlist menu, it defines titles (groups of clips) */ typedef struct { uint8_t data1; uint8_t nr_of_pgci; uint16_t total_nr_of_programs; /* Num programs on disc */ ud_pgci_t* ud_pgci_items; uint32_t* ci_offsets; m_c_gi_t* m_c_gi; } ATTRIBUTE_PACKED ud_pgcit_t; /* global info for Program Set*/ #define UD_PGCIT_SIZE 4U #define CI_OFFSET_SIZE 4U #if PRAGMA_PACK #pragma pack() #endif /** * The following structure defines an IFO file. The structure is divided into * two parts, the VMGI, or Video Manager Information, which is read from the * VIDEO_TS.[IFO,BUP] file, and the VTSI, or Video Title Set Information, which * is read in from the VTS_XX_0.[IFO,BUP] files. */ typedef enum{ IFO_UNKNOWN, IFO_VIDEO, IFO_AUDIO, IFO_VIDEO_RECORDING } ifo_format_t; /* format type will be used in order to reduce ammount of code refactoring, hopefully add some * detection mechanism later as well. * */ typedef struct { union{ struct{ /* VMGI */ vmgi_mat_t *vmgi_mat; tt_srpt_t *tt_srpt; pgc_t *first_play_pgc; ptl_mait_t *ptl_mait; vts_atrt_t *vts_atrt; txtdt_mgi_t *txtdt_mgi; /* Common */ pgci_ut_t *pgci_ut; c_adt_t *menu_c_adt; vobu_admap_t *menu_vobu_admap; /* VTSI */ vtsi_mat_t *vtsi_mat; vts_ptt_srpt_t *vts_ptt_srpt; pgcit_t *vts_pgcit; vts_tmapt_t *vts_tmapt; c_adt_t *vts_c_adt; vobu_admap_t *vts_vobu_admap; }; struct{ /* SAMG */ samg_mat_t *samg_mat; /* AMGI */ amgi_mat_t *amgi_mat; tracks_info_table_t *info_table_first_sector; tracks_info_table_t *info_table_second_sector; /* ATSI */ atsi_mat_t *atsi_mat; atsi_title_table_t *atsi_title_table; /* ASVS */ asvs_mat_t *asvs_mat; }; struct{ /* VMGI_MAT for DVD-VR */ rtav_vmgi_t *rtav_vmgi; /* these two together make up the org_pgci, describe the VRO file's contents */ pgci_t *pgci; /* Program cell information table */ pgc_gi_t *pgc_gi; /* Program cell general information table */ /* the user defined pgci */ ud_pgcit_t *ud_pgcit; /* titles, labels for recordings */ }; }; ifo_format_t ifo_format; } ifo_handle_t; #endif /* LIBDVDREAD_IFO_TYPES_H */