684 lines
16 KiB
C
684 lines
16 KiB
C
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/**
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* Common
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*
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* The following structures are used in both the VMGI and VTSI.
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*/
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/**
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* DVD Time Information.
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*/
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typedef struct {
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uint8_t hour;
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uint8_t minute;
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uint8_t second;
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uint8_t frame_u; /* The two high bits are the frame rate. */
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} dvd_time_t;
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/**
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* Type to store per-command data.
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*/
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typedef struct {
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uint8_t bytes[8];
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} vm_cmd_t;
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#define COMMAND_DATA_SIZE 8U
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/**
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* Video Attributes.
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*/
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typedef struct {
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unsigned char mpeg_version : 2;
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unsigned char video_format : 2;
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unsigned char display_aspect_ratio : 2;
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unsigned char permitted_df : 2;
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unsigned char line21_cc_1 : 1;
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unsigned char line21_cc_2 : 1;
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unsigned char unknown1 : 1;
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unsigned char bit_rate : 1;
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unsigned char picture_size : 2;
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unsigned char letterboxed : 1;
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unsigned char film_mode : 1;
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} video_attr_t;
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/**
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* Audio Attributes.
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*/
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typedef struct {
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unsigned char audio_format : 3;
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unsigned char multichannel_extension : 1;
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unsigned char lang_type : 2;
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unsigned char application_mode : 2;
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unsigned char quantization : 2;
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unsigned char sample_frequency : 2;
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unsigned char unknown1 : 1;
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unsigned char channels : 3;
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uint16_t lang_code;
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uint8_t lang_extension;
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uint8_t code_extension;
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uint8_t unknown3;
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union {
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struct {
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unsigned char unknown4 : 1;
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unsigned char channel_assignment : 3;
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unsigned char version : 2;
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unsigned char mc_intro : 1; /* probably 0: true, 1:false */
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unsigned char mode : 1; /* Karaoke mode 0: solo 1: duet */
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} karaoke;
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struct {
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unsigned char unknown5 : 4;
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unsigned char dolby_encoded : 1; /* suitable for surround decoding */
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unsigned char unknown6 : 3;
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} surround;
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} app_info;
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} audio_attr_t;
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/**
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* MultiChannel Extension
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*/
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typedef struct {
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unsigned int zero1 : 7;
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unsigned int ach0_gme : 1;
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unsigned int zero2 : 7;
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unsigned int ach1_gme : 1;
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unsigned int zero3 : 4;
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unsigned int ach2_gv1e : 1;
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unsigned int ach2_gv2e : 1;
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unsigned int ach2_gm1e : 1;
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unsigned int ach2_gm2e : 1;
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unsigned int zero4 : 4;
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unsigned int ach3_gv1e : 1;
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unsigned int ach3_gv2e : 1;
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unsigned int ach3_gmAe : 1;
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unsigned int ach3_se2e : 1;
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unsigned int zero5 : 4;
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unsigned int ach4_gv1e : 1;
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unsigned int ach4_gv2e : 1;
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unsigned int ach4_gmBe : 1;
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unsigned int ach4_seBe : 1;
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uint8_t zero6[19];
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} multichannel_ext_t;
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/**
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* Subpicture Attributes.
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*/
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typedef struct {
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/*
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* type: 0 not specified
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* 1 language
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* 2 other
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* coding mode: 0 run length
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* 1 extended
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* 2 other
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* language: indicates language if type == 1
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* lang extension: if type == 1 contains the lang extension
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*/
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unsigned char code_mode : 3;
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unsigned char zero1 : 3;
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unsigned char type : 2;
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uint8_t zero2;
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uint16_t lang_code;
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uint8_t lang_extension;
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uint8_t code_extension;
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} subp_attr_t;
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/**
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* PGC Command Table.
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*/
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typedef struct {
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uint16_t nr_of_pre;
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uint16_t nr_of_post;
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uint16_t nr_of_cell;
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uint16_t zero_1;
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vm_cmd_t *pre_cmds;
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vm_cmd_t *post_cmds;
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vm_cmd_t *cell_cmds;
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} pgc_command_tbl_t;
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#define PGC_COMMAND_TBL_SIZE 8U
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/**
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* PGC Program Map
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*/
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typedef uint8_t pgc_program_map_t;
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/**
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* Cell Playback Information.
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*/
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typedef struct {
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unsigned int block_mode : 2;
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unsigned int block_type : 2;
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unsigned int seamless_play : 1;
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unsigned int interleaved : 1;
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unsigned int stc_discontinuity: 1;
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unsigned int seamless_angle : 1;
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unsigned int zero_1 : 1;
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unsigned int playback_mode : 1; /**< When set, enter StillMode after each VOBU */
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unsigned int restricted : 1; /**< ?? drop out of fastforward? */
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unsigned int cell_type : 5; /** for karaoke, reserved otherwise */
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uint8_t still_time;
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uint8_t cell_cmd_nr;
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dvd_time_t playback_time;
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uint32_t first_sector;
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uint32_t first_ilvu_end_sector;
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uint32_t last_vobu_start_sector;
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uint32_t last_sector;
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} cell_playback_t;
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#define BLOCK_TYPE_NONE 0x0
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#define BLOCK_TYPE_ANGLE_BLOCK 0x1
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#define BLOCK_MODE_NOT_IN_BLOCK 0x0
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#define BLOCK_MODE_FIRST_CELL 0x1
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#define BLOCK_MODE_IN_BLOCK 0x2
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#define BLOCK_MODE_LAST_CELL 0x3
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/**
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* Cell Position Information.
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*/
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typedef struct {
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uint16_t vob_id_nr;
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uint8_t zero_1;
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uint8_t cell_nr;
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} cell_position_t;
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/**
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* User Operations.
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*/
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typedef struct {
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unsigned int zero : 7; /* 25-31 */
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unsigned int video_pres_mode_change : 1; /* 24 */
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unsigned int karaoke_audio_pres_mode_change : 1; /* 23 */
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unsigned int angle_change : 1;
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unsigned int subpic_stream_change : 1;
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unsigned int audio_stream_change : 1;
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unsigned int pause_on : 1;
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unsigned int still_off : 1;
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unsigned int button_select_or_activate : 1;
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unsigned int resume : 1; /* 16 */
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unsigned int chapter_menu_call : 1; /* 15 */
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unsigned int angle_menu_call : 1;
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unsigned int audio_menu_call : 1;
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unsigned int subpic_menu_call : 1;
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unsigned int root_menu_call : 1;
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unsigned int title_menu_call : 1;
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unsigned int backward_scan : 1;
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unsigned int forward_scan : 1; /* 8 */
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unsigned int next_pg_search : 1; /* 7 */
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unsigned int prev_or_top_pg_search : 1;
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unsigned int time_or_chapter_search : 1;
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unsigned int go_up : 1;
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unsigned int stop : 1;
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unsigned int title_play : 1;
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unsigned int chapter_search_or_play : 1;
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unsigned int title_or_time_play : 1; /* 0 */
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} user_ops_t;
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/**
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* Program Chain Information.
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*/
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typedef struct {
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uint16_t zero_1;
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uint8_t nr_of_programs;
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uint8_t nr_of_cells;
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dvd_time_t playback_time;
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user_ops_t prohibited_ops;
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uint16_t audio_control[8]; /* New type? */
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uint32_t subp_control[32]; /* New type? */
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uint16_t next_pgc_nr;
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uint16_t prev_pgc_nr;
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uint16_t goup_pgc_nr;
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uint8_t pg_playback_mode;
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uint8_t still_time;
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uint32_t palette[16]; /* New type struct {zero_1, Y, Cr, Cb} ? */
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uint16_t command_tbl_offset;
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uint16_t program_map_offset;
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uint16_t cell_playback_offset;
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uint16_t cell_position_offset;
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pgc_command_tbl_t *command_tbl;
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pgc_program_map_t *program_map;
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cell_playback_t *cell_playback;
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cell_position_t *cell_position;
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int ref_count;
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} pgc_t;
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#define PGC_SIZE 236U
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/**
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* Program Chain Information Search Pointer.
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*/
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typedef struct {
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uint8_t entry_id;
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unsigned int block_mode : 2;
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unsigned int block_type : 2;
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unsigned int zero_1 : 4;
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uint16_t ptl_id_mask;
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uint32_t pgc_start_byte;
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pgc_t *pgc;
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} pgci_srp_t;
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#define PGCI_SRP_SIZE 8U
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/**
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* Program Chain Information Table.
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*/
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typedef struct {
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uint16_t nr_of_pgci_srp;
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uint16_t zero_1;
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uint32_t last_byte;
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pgci_srp_t *pgci_srp;
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int ref_count;
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} pgcit_t;
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#define PGCIT_SIZE 8U
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/**
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* Menu PGCI Language Unit.
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*/
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typedef struct {
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uint16_t lang_code;
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uint8_t lang_extension;
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uint8_t exists;
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uint32_t lang_start_byte;
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pgcit_t *pgcit;
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} pgci_lu_t;
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#define PGCI_LU_SIZE 8U
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/**
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* Menu PGCI Unit Table.
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*/
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typedef struct {
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uint16_t nr_of_lus;
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uint16_t zero_1;
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uint32_t last_byte;
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pgci_lu_t *lu;
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} pgci_ut_t;
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#define PGCI_UT_SIZE 8U
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/**
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* Cell Address Information.
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*/
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typedef struct {
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uint16_t vob_id;
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uint8_t cell_id;
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uint8_t zero_1;
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uint32_t start_sector;
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uint32_t last_sector;
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} cell_adr_t;
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/**
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* Cell Address Table.
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*/
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typedef struct {
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uint16_t nr_of_vobs; /* VOBs */
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uint16_t zero_1;
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uint32_t last_byte;
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cell_adr_t *cell_adr_table; /* No explicit size given. */
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} c_adt_t;
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#define C_ADT_SIZE 8U
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/**
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* VOBU Address Map.
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*/
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typedef struct {
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uint32_t last_byte;
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uint32_t *vobu_start_sectors;
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} vobu_admap_t;
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#define VOBU_ADMAP_SIZE 4U
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/**
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* VMGI
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*
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* The following structures relate to the Video Manager.
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*/
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/**
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* Video Manager Information Management Table.
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*/
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typedef struct {
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char vmg_identifier[12];
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uint32_t vmg_last_sector;
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uint8_t zero_1[12];
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uint32_t vmgi_last_sector;
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uint8_t zero_2;
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uint8_t specification_version;
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uint32_t vmg_category;
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uint16_t vmg_nr_of_volumes;
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uint16_t vmg_this_volume_nr;
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uint8_t disc_side;
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uint8_t zero_3[19];
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uint16_t vmg_nr_of_title_sets; /* Number of VTSs. */
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char provider_identifier[32];
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uint64_t vmg_pos_code;
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uint8_t zero_4[24];
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uint32_t vmgi_last_byte;
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uint32_t first_play_pgc;
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uint8_t zero_5[56];
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uint32_t vmgm_vobs; /* sector */
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uint32_t tt_srpt; /* sector */
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uint32_t vmgm_pgci_ut; /* sector */
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uint32_t ptl_mait; /* sector */
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uint32_t vts_atrt; /* sector */
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uint32_t txtdt_mgi; /* sector */
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uint32_t vmgm_c_adt; /* sector */
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uint32_t vmgm_vobu_admap; /* sector */
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uint8_t zero_6[32];
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video_attr_t vmgm_video_attr;
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uint8_t zero_7;
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uint8_t nr_of_vmgm_audio_streams; /* should be 0 or 1 */
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audio_attr_t vmgm_audio_attr;
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audio_attr_t zero_8[7];
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uint8_t zero_9[17];
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uint8_t nr_of_vmgm_subp_streams; /* should be 0 or 1 */
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subp_attr_t vmgm_subp_attr;
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subp_attr_t zero_10[27]; /* XXX: how much 'padding' here? */
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} vmgi_mat_t;
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typedef struct {
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unsigned int zero_1 : 1;
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unsigned int multi_or_random_pgc_title : 1; /* 0: one sequential pgc title */
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unsigned int jlc_exists_in_cell_cmd : 1;
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unsigned int jlc_exists_in_prepost_cmd : 1;
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unsigned int jlc_exists_in_button_cmd : 1;
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unsigned int jlc_exists_in_tt_dom : 1;
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unsigned int chapter_search_or_play : 1; /* UOP 1 */
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unsigned int title_or_time_play : 1; /* UOP 0 */
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} playback_type_t;
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/**
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* Title Information.
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*/
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typedef struct {
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playback_type_t pb_ty;
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uint8_t nr_of_angles;
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uint16_t nr_of_ptts;
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uint16_t parental_id;
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uint8_t title_set_nr;
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uint8_t vts_ttn;
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uint32_t title_set_sector;
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} title_info_t;
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/**
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* PartOfTitle Search Pointer Table.
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*/
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typedef struct {
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uint16_t nr_of_srpts;
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uint16_t zero_1;
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uint32_t last_byte;
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title_info_t *title;
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} tt_srpt_t;
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#define TT_SRPT_SIZE 8U
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/**
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* Parental Management Information Unit Table.
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* Level 1 (US: G), ..., 7 (US: NC-17), 8
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*/
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#define PTL_MAIT_NUM_LEVEL 8
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typedef uint16_t pf_level_t[PTL_MAIT_NUM_LEVEL];
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/**
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* Parental Management Information Unit Table.
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*/
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typedef struct {
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uint16_t country_code;
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uint16_t zero_1;
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uint16_t pf_ptl_mai_start_byte;
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uint16_t zero_2;
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pf_level_t *pf_ptl_mai; /* table of (nr_of_vtss + 1), video_ts is first */
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} ptl_mait_country_t;
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#define PTL_MAIT_COUNTRY_SIZE 8U
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/**
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* Parental Management Information Table.
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*/
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typedef struct {
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uint16_t nr_of_countries;
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uint16_t nr_of_vtss;
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uint32_t last_byte;
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ptl_mait_country_t *countries;
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} ptl_mait_t;
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#define PTL_MAIT_SIZE 8U
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/**
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* Video Title Set Attributes.
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*/
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typedef struct {
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uint32_t last_byte;
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uint32_t vts_cat;
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video_attr_t vtsm_vobs_attr;
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uint8_t zero_1;
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uint8_t nr_of_vtsm_audio_streams; /* should be 0 or 1 */
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audio_attr_t vtsm_audio_attr;
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audio_attr_t zero_2[7];
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uint8_t zero_3[16];
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uint8_t zero_4;
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uint8_t nr_of_vtsm_subp_streams; /* should be 0 or 1 */
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subp_attr_t vtsm_subp_attr;
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subp_attr_t zero_5[27];
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uint8_t zero_6[2];
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video_attr_t vtstt_vobs_video_attr;
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uint8_t zero_7;
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uint8_t nr_of_vtstt_audio_streams;
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audio_attr_t vtstt_audio_attr[8];
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uint8_t zero_8[16];
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uint8_t zero_9;
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uint8_t nr_of_vtstt_subp_streams;
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subp_attr_t vtstt_subp_attr[32];
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} vts_attributes_t;
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#define VTS_ATTRIBUTES_SIZE 542U
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#define VTS_ATTRIBUTES_MIN_SIZE 356U
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/**
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* Video Title Set Attribute Table.
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*/
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typedef struct {
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uint16_t nr_of_vtss;
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uint16_t zero_1;
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uint32_t last_byte;
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vts_attributes_t *vts;
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uint32_t *vts_atrt_offsets; /* offsets table for each vts_attributes */
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} vts_atrt_t;
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#define VTS_ATRT_SIZE 8U
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/**
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* Text Data. (Incomplete)
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*/
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typedef struct {
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uint32_t last_byte; /* offsets are relative here */
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uint16_t offsets[100]; /* == nr_of_srpts + 1 (first is disc title) */
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} txtdt_t;
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/**
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* Text Data Language Unit. (Incomplete)
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*/
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typedef struct {
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uint16_t lang_code;
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uint8_t zero_1;
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uint8_t char_set; /* 0x00 reserved Unicode, 0x01 ISO 646, 0x10 JIS Roman & JIS Kanji, 0x11 ISO 8859-1, 0x12 Shift JIS Kanji */
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uint32_t txtdt_start_byte; /* prt, rel start of vmg_txtdt_mgi */
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txtdt_t *txtdt;
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} txtdt_lu_t;
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#define TXTDT_LU_SIZE 8U
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/**
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* Text Data Manager Information. (Incomplete)
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*/
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typedef struct {
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char disc_name[12];
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uint16_t zero_1;
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uint16_t nr_of_language_units;
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uint32_t last_byte;
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txtdt_lu_t *lu;
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} txtdt_mgi_t;
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#define TXTDT_MGI_SIZE 20U
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/**
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* VTS
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*
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* Structures relating to the Video Title Set (VTS).
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*/
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/**
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* Video Title Set Information Management Table.
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*/
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typedef struct {
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char vts_identifier[12];
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uint32_t vts_last_sector;
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uint8_t zero_1[12];
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uint32_t vtsi_last_sector;
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uint8_t zero_2;
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uint8_t specification_version;
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uint32_t vts_category;
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uint16_t zero_3;
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uint16_t zero_4;
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uint8_t zero_5;
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uint8_t zero_6[19];
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uint16_t zero_7;
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uint8_t zero_8[32];
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uint64_t zero_9;
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uint8_t zero_10[24];
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uint32_t vtsi_last_byte;
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uint32_t zero_11;
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uint8_t zero_12[56];
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uint32_t vtsm_vobs; /* sector */
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uint32_t vtstt_vobs; /* sector */
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uint32_t vts_ptt_srpt; /* sector */
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uint32_t vts_pgcit; /* sector */
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uint32_t vtsm_pgci_ut; /* sector */
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uint32_t vts_tmapt; /* sector */
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uint32_t vtsm_c_adt; /* sector */
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uint32_t vtsm_vobu_admap; /* sector */
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uint32_t vts_c_adt; /* sector */
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uint32_t vts_vobu_admap; /* sector */
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uint8_t zero_13[24];
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video_attr_t vtsm_video_attr;
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uint8_t zero_14;
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uint8_t nr_of_vtsm_audio_streams; /* should be 0 or 1 */
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audio_attr_t vtsm_audio_attr;
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audio_attr_t zero_15[7];
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uint8_t zero_16[17];
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uint8_t nr_of_vtsm_subp_streams; /* should be 0 or 1 */
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subp_attr_t vtsm_subp_attr;
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subp_attr_t zero_17[27];
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uint8_t zero_18[2];
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video_attr_t vts_video_attr;
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uint8_t zero_19;
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uint8_t nr_of_vts_audio_streams;
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audio_attr_t vts_audio_attr[8];
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uint8_t zero_20[17];
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uint8_t nr_of_vts_subp_streams;
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subp_attr_t vts_subp_attr[32];
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uint16_t zero_21;
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multichannel_ext_t vts_mu_audio_attr[8];
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/* XXX: how much 'padding' here, if any? */
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} vtsi_mat_t;
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/**
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* PartOfTitle Unit Information.
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*/
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typedef struct {
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uint16_t pgcn;
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uint16_t pgn;
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} ptt_info_t;
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/**
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* PartOfTitle Information.
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*/
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typedef struct {
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uint16_t nr_of_ptts;
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ptt_info_t *ptt;
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} ttu_t;
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/**
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* PartOfTitle Search Pointer Table.
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*/
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typedef struct {
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uint16_t nr_of_srpts;
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uint16_t zero_1;
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uint32_t last_byte;
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ttu_t *title;
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uint32_t *ttu_offset; /* offset table for each ttu */
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} vts_ptt_srpt_t;
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#define VTS_PTT_SRPT_SIZE 8U
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/**
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* Time Map Entry.
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*/
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/* Should this be bit field at all or just the uint32_t? */
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typedef uint32_t map_ent_t;
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/**
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* Time Map.
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*/
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typedef struct {
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uint8_t tmu; /* Time unit, in seconds */
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uint8_t zero_1;
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uint16_t nr_of_entries;
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map_ent_t *map_ent;
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} vts_tmap_t;
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#define VTS_TMAP_SIZE 4U
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/**
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* Time Map Table.
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*/
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typedef struct {
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uint16_t nr_of_tmaps;
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uint16_t zero_1;
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uint32_t last_byte;
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vts_tmap_t *tmap;
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uint32_t *tmap_offset; /* offset table for each tmap */
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} vts_tmapt_t;
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#define VTS_TMAPT_SIZE 8U
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/**
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* The following structure defines an IFO file. The structure is divided into
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* two parts, the VMGI, or Video Manager Information, which is read from the
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* VIDEO_TS.[IFO,BUP] file, and the VTSI, or Video Title Set Information, which
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* is read in from the VTS_XX_0.[IFO,BUP] files.
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*/
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typedef struct {
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/* VMGI */
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vmgi_mat_t *vmgi_mat;
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tt_srpt_t *tt_srpt;
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pgc_t *first_play_pgc;
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ptl_mait_t *ptl_mait;
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vts_atrt_t *vts_atrt;
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txtdt_mgi_t *txtdt_mgi;
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|
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/* Common */
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pgci_ut_t *pgci_ut;
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c_adt_t *menu_c_adt;
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vobu_admap_t *menu_vobu_admap;
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/* VTSI */
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vtsi_mat_t *vtsi_mat;
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vts_ptt_srpt_t *vts_ptt_srpt;
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pgcit_t *vts_pgcit;
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vts_tmapt_t *vts_tmapt;
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c_adt_t *vts_c_adt;
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vobu_admap_t *vts_vobu_admap;
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} ifo_handle_t;
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