nav_task.h

这是DVD中伺服部分的核心代码

/*****************************************************************************
******************************************************************************
**                                                                          **
**  Copyright (c) 2002 Videon Central, Inc.                                 **
**  All rights reserved.                                                    **
**                                                                          **
**  The computer program contained herein contains proprietary information  **
**  which is the property of Videon Central, Inc.  The program may be used  **
**  and/or copied only with the written permission of Videon Central, Inc.  **
**  or in accordance with the terms and conditions stipulated in the        **
**  agreement/contract under which the programs have been supplied.         **
**                                                                          **
******************************************************************************
*****************************************************************************/

/**
 * @file nav_task.h
 *
 * Navigation header/messages
 *
 * $Id: nav_task.h,v 1.61 2007/01/05 02:25:45 rbehe Exp $
 */

#ifndef _NAV_TASK_H
#define _NAV_TASK_H

#ifdef __cplusplus
extern "C" {
#endif

#include "vdvd_types.h"
#include "osapi.h"

/* Macros */
#define  Q_WAIT_MAX_RETRIES   10        /* Max number of retries if Q is full */
#define  Q_WAIT_PERIOD        50        /* # of msec. to wait for a Q to
                                         * empty */
#define NAV_MSG_RDY         0x00000001
#define NAV_MSG_SIZE        16
#define DIRECTORY_RDY       0x00000002
#define ANGLE_CHANGE_TIME   100 /* wait for 1 second for next angle change
                                 * press */

#define DISC_N          5       /* Number of discs to save data for bookmarks */

/* Macros for OSD handler related stuffs */
#define  SKIP_NAV       1
#define  NOT_SKIP_NAV   0

/* Loading I frame */
#define  DISPLAY_IDLE   0
#define  DECODE_START   1
#define  DISPLAY_DONE   2

/* Support for step forward and step backwards JPM 12/17/01 */
#define STEP_FORWARD_DIRECTION  	0
#define STEP_BACKWARD_DIRECTION 	1

typedef enum
{
    STOPPED        = 1,
    UNLOADED       = 2,
    NORMAL_PLAYING = 3,
    SLOW_FORWARD   = 4,
    FAST_FORWARD   = 5,
    PAUSED         = 6,
    FAST_REVERSE   = 7,
    SLOW_REVERSE   = 8,
    POWER_ON_FP    = 9,
    DRIVE_EMPTY    = 10,
    FULL_STOPPED   = 11,
    CELL_STILL     = 12
} NAV_STATE;


 /*
  * Navigation queue messages KEY_ : messages from button/remote input task
  */
typedef enum tagNAV_COMMAND
{
    KEY_PLAY = 0,                   /* Start normal playback */
    KEY_FF,                         /* Fast forward, OSD_FF_1,2,3,4 */
    KEY_SLOW_F,                     /* Slow forward, OSD_SLOW_1,2,3,4 */
    KEY_SLOW_R,                     /* Slow reverse, OSD_SLOW_B_1,2,3,4 */
    KEY_FR,                         /* Fast reverse, OSD_FB_1,2,3,4 */
    KEY_STOP,                       /* Stop, blue screen, goto title beginning */
    KEY_PAUSE,                      /* Pause on/off */
    KEY_STEP,                       /* Single step frame */
    KEY_STEP_BACK,                  /* Single step back frame Added JPM 12/17/01 */
    KEY_VMGM,                       /* Display VMGM menu listing titles */
    KEY_TITLE,                      /* Request title number input, OSD_TITLE */
    KEY_TITLE_PLAY,                 /* Play the title by "title number" Parameters: 1 - ULONG TitleNum From OSD */
    KEY_PTT,                        /* Request part of title number input, OSD_PTT */
    KEY_PTT_PLAY,                   /* Play from beginning of PTT:  From OSD Parameters: 2 - ULONG TitleNum, PTT */
    KEY_PTT_SEARCH,                 /* Play from PTT in current Title Parameters 1 - ULONG TitleNum */
    KEY_TIME,                       /* Request time search input, OSD_TIME_SEARCH */
    KEY_TIME_PLAY,                  /* Play from position of title Parameters: 2 - ULONG TitleNum, Time */
    KEY_TIME_SEARCH,                /* Jump to time in same title, From OSD Task Parameters: 1 - ULONG time */
    KEY_PROGRAM,                    /* Request to create a program, OSD_PROGRAM */
    KEY_PROGRAM_PLAY,               /* Play a program list Parameter 1:  ULONG pointer to program list */
    KEY_SHUFFLE_PLAY,               /* shuffle titles in program, OSD_SHUFFLE */
    KEY_REPEAT,                     /* Request to repeat title or chapter */
    KEY_A_B,                        /* Places a marker for repeat AB */
    KEY_GOUP_PGC,                   /* Play the new PGC specified by GoUp_PGCN in PGCI */
    KEY_PREV_PG_SEARCH,             /* Play the previous program in the same PGC */
    KEY_TOP_PG_SEARCH,              /* Play from current pgm in the same PGC */
    KEY_NEXT_PG_SEARCH,             /* Play the next program in the same PGC */
    KEY_RESUME,                     /* Return to TT_DOM playback from menu */
    KEY_UPPER_BUTTON_SELECT,        /* MENU field up */
    KEY_LOWER_BUTTON_SELECT,        /* MENU field down */
    KEY_LEFT_BUTTON_SELECT,         /* MENU field left */
    KEY_RIGHT_BUTTON_SELECT,        /* MENU field right */
    KEY_ACTIVATE_BUTTON,            /* Activate the selected MENU button This is equal to the ENTER or RETURN key */
    KEY_STILL_OFF,                  /* Release VOBU still, cell still, or PGC still */
    KEY_AUDIO_SELECT,               /* Flips language choices, OSD_AUDIO_SELECT */
    KEY_SUB_PICTURE_STREAM_CHANGE,  /* Flips SPU streams, OSD_CAPTION_CHG */
    KEY_ANGLE_CHANGE,               /* Flips angles, OSD_ANGLE_CHG */
    KEY_GOTO_ANGLE,                 /* Jump to the specified angle */
    KEY_PARENTAL_LEVEL_SELECT,      /* Change Parental Level: From OSD SETUP menu Parameters 1: ULONG '1','6','8', disabled */
    KEY_PARENTAL_COUNTRY_SELECT,    /* Change Country Code: From OSD SETUP menu Parameters 1: ULONG country code */
    KEY_KARAOKE_AUDIO,              /* Start Karaoke audio: From OSD SETUP menu Parameters 1: ULONG audio mixing mode */
    KEY_VIDEO_PRESENTATION,         /* Change Display mode: From OSD SETUP menu Parameters 1: ULONG mode */
    NAV_TIMER_EXPIRED,
    KEY_NEXT_TITLE,                 /* next title,  OSD_NEXT_TITLE */
    KEY_PREV_TITLE,                 /* previous title,  OSD_PREV_TITLE */
    NAV_CELL_STILL_EXPIRED,
    NAV_PGC_STILL_EXPIRED,
    NAV_BTN_SL_EXPIRED,
    KEY_VTSM,                       /* display title set menu, no OSD */
    KEY_NEXT_PG,                    /* next PTT, OSD_NEXT_PTT */
    KEY_PREV_PG,                    /* prev PTT, OSD_PREV_PTT */
    NAV_PREV_PG_EXPIRED,
    KEY_SUB_PICTURE_STREAM_ON_OFF,  /* Subtitle on/off */
    KEY_ZOOM,                       /* Zoom a region, OSD_ZOOM OSD Task controls entry menu */
    KEY_ZOOM_RIGHT,                 /* Zoom right, from OSD Task */
    KEY_ZOOM_LEFT,                  /* Zoom left, from OSD Task */
    KEY_ZOOM_UP,                    /* Zoom up, from OSD Task */
    KEY_ZOOM_DOWN,                  /* Zoom down, from OSD Task */
    KEY_UP,                         /* SKIP UP KEY(NEXT) */
    KEY_DOWN,                       /* SKIP DOWN KEY(PREVIOUS) */
    KEY_NORMAL,                     /* NORMAL KEY  */
    KEY_PGM,                        /* PROGRAM KEY */
    KEY_RDM,                        /* RANDOM KEY  */
    KEY_CHECK,                      /* CHECK KEY   */
    KEY_CLEAR,                      /* CLEAR KEY   */
    KEY_KEYJUST,                    /* KEY ADJUST  */
    KEY_ECHOUP,                     /* ECHO UP     */
    KEY_ECHODOWN,                   /* ECHO DOWN   */
    KEY_ECHOJUST,                   /* ECHO ADJUST */
    KEY_MICUP,                      /* MIC UP      */
    KEY_MICDOWN,                    /* MIC DOWN    */
    KEY_KARAOKE,                    /* KARAOKE     */
    KEY_ENTER,                      /* ENTER KEY   */
    KEY_RETURN,                     /* RETURN KEY  */
    KEY_GUIDE,                      /* GUIDE MELODY */
    KEY_SCENE,                      /* SCENE        */
    KEY_CAPTION,                    /* CAPTION CHANGE */
    KEY_CAP_ONOFF,                  /* CAPTION ON/OFF */
    KEY_GOTO,                       /* GOTO Search Mode */
    KEY_GOTO_BUTTON,
    KEY_SETTMPPML,                  /* first parameter: 0 -- not change, 1 -- change */
    LOADER_TRACK_BUFFER_EMPTY,
    KEY_LAST_MEMO,                  /* LAST_MEMO KEY (Sanyo) */
    KEY_CONDITION,                  /* CONDITION KEY (Sanyo) */
    KEY_PLAY_LOCATION,              /* Play location (bookmark/resume) */
    KEY_ANGLE_REPLAY,               /* angle replay */
    KEY_VOCAL,                      /* Vocal Fade */
    KEY_SURROUND,                   /* SURROUND */
    KEY_LR_ST,                      /* L/R/ST */
    KEY_ECHO_REPEAT,                /* support repeat key feature */
    KEY_ECHO_STOP,
    KEY_NEXT_PG_REPEAT,
    KEY_PREV_PG_REPEAT,
    NV_PCK_READY,
    DRIVE_ERROR,
    NAV_HLI_EXPIRED,
    NAV_UPDATE_AUDIO,
    NAV_BEG_STREAM,
    NAV_END_STREAM,
    NAV_DEC_DONE,
    NAV_TASK_EXIT
} NAV_COMMAND;

enum
{
    NORMAL_PGC_END = 1,
    INFINITE_VOBU_STILL,
    SHUFFLE_RANDOM_STILL,
    LAST_VOBU,
    TOP_PGC,
    NEXT_RIP_FORWARD,
    CELL_STILL_CELL_CMD,
    NEXT_USER_PROG_LAST_VOBU
};

enum
{
   CONDITION_MODE = 0,
   LAST_MEMO_MODE
};

typedef struct tagDVD_SYSTEM_PARAMS
{
    UCHAR video_mode;
    UCHAR audio;
    UCHAR subtitle;
    UCHAR dvd_menu_language;
    UCHAR country;
    UCHAR parental;
    UCHAR video_mode2;
    UCHAR background;
    UCHAR digital_out;
    UCHAR dolby_digital;
    UCHAR mpeg;
    UCHAR dts;
    UCHAR downconvert96k;
    UCHAR last_memo_on;
    UCHAR scr_saver;
#if OSD_TYPE == OSD_2
    USHORT audio_lang_code;
    USHORT subtitle_lang_code;
    USHORT dvd_menu_lang_code;
    UCHAR  subtitle_display;
#endif
} DVD_SYSTEM_PARAMS;

typedef struct _rsm_info
{
    ULONG next_vts_sa;
    ULONG nv_pck_lbn;
    UBYTE cell_num;
    UBYTE pgc_domain;
    UBYTE vtsn;
    UBYTE valid;
    USHORT sprm1;
    USHORT sprm2;
    USHORT sprm4;
    USHORT sprm5;
    USHORT sprm6;
    USHORT sprm7;
    USHORT sprm8;
} rsm_info_struct;

typedef struct tagNAV_DVD_LOCATION
{
    ULONG           ulSize;
    rsm_info_struct rsm;
    ULONG           angle_num;
} NAV_DVD_LOCATION;

typedef struct
{
    UBYTE index;
    ULONG disc_id;
    UBYTE video_mode;   /* TV_ASPECT_RATIO, letterbox */
    UBYTE dolby_digital;  /* 1 = Dolby digiral, 0 = down mix PCM */
    UBYTE mpeg;  /* 1 = MPEG, 0 = PCM */
    UBYTE dts;  /* 1 = DTS on, 0 = DTS off */
    UBYTE n_spst;
    UBYTE n_ast;
} CONDITION_STRUCT;

typedef struct
{
    UBYTE index;
    rsm_info_struct rsm_info;
    CONDITION_STRUCT condition_memo;
    UBYTE angle_num;
} LAST_MEMO_STRUCT;


typedef struct
{
    rsm_info_struct rsm_info;   /* position */
    USHORT chap_n;              /* chapter number */
    USHORT title_n;             /* title number */
    UBYTE angle_num;
} BMSUB_STRUCT;

typedef struct
{
    ULONG title_time;                /* position of bookmark */
    USHORT chap_n;                   /* chapter number */
    LONG play_point;                /* physical sector on the disk */
	UBYTE pbc_flag;					 /* PBC mode on or off */
	USHORT scene;						 /* Scene number in PBC on */
	UBYTE pin;							 /* Play item number in PBC on */
	UBYTE audio_stream;				 /* Audio stream index for SVCD */
} VCD_BMSUB_STRUCT;

typedef struct
{
    ULONG identifier;           /* unique identifier */
    VCD_BMSUB_STRUCT bookmark[DISC_N];
} VCD_BOOKMARK_STRUCT;

/*
 * globals
 */
extern OS_MSG_Q_ID queue_nav;
extern USHORT playback_mode;
extern UBYTE  pg_repeat_count;
extern USHORT pgc_mode;
extern USHORT next_cell;
extern USHORT old_cell;
extern UBYTE  next_pgn;
extern USHORT pgc_domain;
extern UBYTE  player_state;
extern UBYTE  slow_level;

extern NAV_STATE nav_state;

extern USHORT user_program[2][99][2];
extern UBYTE  user_program_enable;
extern UBYTE  last_program[2];
extern UBYTE  current_program;
extern UBYTE  user_program_start;
extern UBYTE  which_program_set;
extern UBYTE  parental_prohibit;
extern BOOLEAN fParental_Play;

extern USHORT last_vobu_mode;
extern UBYTE  last_vobu_flag;
extern UBYTE  during_search;


/*
 * Function Prototypes
 */
ULONG nav_task(PVOID argv);
ULONG watchdog_timer(void);
void nav_timer_expire(ULONG time);

void reset_scr(ULONG scr_value);
ULONG get_scr(void);

void rsm_from_zoom(void);
void abort_drive_reset_channel(void);
UBYTE abort_startup(void);
void uop_prohibited_msg(ULONG msg);
void uop_audio_not_supported(ULONG msg);
USHORT check_for_repeat(void);
ULONG get_disc_id(void);
void clear_nav_state(void);
UBYTE init_nav(void);
void set_condition(void);
void restore_condition(UBYTE);
void write_program(void);
void read_program(void);
void clear_user_program(void);
void nav_cmd_timer(void);
void send_seamless_angle_change(void);
void send_nonseamless_angle_change(void);
void check_condition(void);
BOOLEAN check_last_memo(void);
void set_last_memo(void);
void transfer_dvd_program(void);
void read_last_memo (void);
void write_last_memo (void);
void read_condition(void);
void logo_display(void);
UBYTE start_drive(USHORT);
void disc_error_handle(void);
BOOLEAN check_invalid_disc(UBYTE);
void setup_video_playback(void);
UBYTE play_last_memo(UBYTE);
UBYTE normalize(void);
void set_cc_state(UBYTE);
UBYTE get_cc_state(void);
void disable_venc_cc(void);
void enable_venc_cc(void);
BOOLEAN compare_cell(USHORT, USHORT);
void set_cc_state(UBYTE);
void set_location(NAV_DVD_LOCATION *pLocation);
void play_location(NAV_DVD_LOCATION *pLocation);
void play_after_last_vobu(void);

void get_next_cell(void);

void clear_loader_queue(void);
void clear_nav_timers(void);
void clear_all_timers(void);

NAV_STATE get_nav_state(void);

#ifdef __cplusplus
}
#endif

#endif  /* _NAV_TASK_H */