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/*
* Copyright (C) 2001-2004 Rich Wareham <richwareham@users.sourceforge.net>
*
* This file is part of libdvdnav, a DVD navigation library.
*
* libdvdnav 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.
*
* libdvdnav 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 libdvdnav; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef LIBDVDNAV_DVDNAV_INTERNAL_H
#define LIBDVDNAV_DVDNAV_INTERNAL_H
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef _WIN32
/* pthread_mutex_* wrapper for win32 */
#include <windows.h>
#include <process.h>
typedef CRITICAL_SECTION pthread_mutex_t;
#define pthread_mutex_init(a, b) InitializeCriticalSection(a)
#define pthread_mutex_lock(a) EnterCriticalSection(a)
#define pthread_mutex_unlock(a) LeaveCriticalSection(a)
#define pthread_mutex_destroy(a) DeleteCriticalSection(a)
#ifndef HAVE_GETTIMEOFDAY
/* replacement gettimeofday implementation */
#include <sys/timeb.h>
static inline int _private_gettimeofday( struct timeval *tv, void *tz )
{
struct timeb t;
ftime( &t );
tv->tv_sec = t.time;
tv->tv_usec = t.millitm * 1000;
return 0;
}
#define gettimeofday(TV, TZ) _private_gettimeofday((TV), (TZ))
#endif
#include <io.h> /* read() */
#define lseek64 _lseeki64
#else
#include <pthread.h>
#endif /* _WIN32 */
#ifdef __ANDROID__
# undef lseek
# define lseek lseek64
# undef off_t
# define off_t off64_t
#endif
/* where should libdvdnav write its messages (stdout/stderr) */
#define MSG_OUT stderr
/* Maximum length of an error string */
#define MAX_ERR_LEN 255
#ifndef DVD_VIDEO_LB_LEN
#define DVD_VIDEO_LB_LEN 2048
#endif
typedef enum {
DSI_ILVU_PRE = 1 << 15, /* set during the last 3 VOBU preceding an interleaved block. */
DSI_ILVU_BLOCK = 1 << 14, /* set for all VOBU in an interleaved block */
DSI_ILVU_FIRST = 1 << 13, /* set for the first VOBU for a given angle or scene within a ILVU, or the first VOBU in the preparation (PREU) sequence */
DSI_ILVU_LAST = 1 << 12, /* set for the last VOBU for a given angle or scene within a ILVU, or the last VOBU in the preparation (PREU) sequence */
DSI_ILVU_MASK = 0xf000
} DSI_ILVU;
typedef struct read_cache_s read_cache_t;
/*
* These are defined here because they are
* not in ifo_types.h, they maybe one day
*/
#ifndef audio_status_t
typedef struct {
#ifdef WORDS_BIGENDIAN
unsigned int available : 1;
unsigned int zero1 : 4;
unsigned int stream_number : 3;
uint8_t zero2;
#else
uint8_t zero2;
unsigned int stream_number : 3;
unsigned int zero1 : 4;
unsigned int available : 1;
#endif
} ATTRIBUTE_PACKED audio_status_t;
#endif
#ifndef spu_status_t
typedef struct {
#ifdef WORDS_BIGENDIAN
unsigned int available : 1;
unsigned int zero1 : 2;
unsigned int stream_number_4_3 : 5;
unsigned int zero2 : 3;
unsigned int stream_number_wide : 5;
unsigned int zero3 : 3;
unsigned int stream_number_letterbox : 5;
unsigned int zero4 : 3;
unsigned int stream_number_pan_scan : 5;
#else
unsigned int stream_number_pan_scan : 5;
unsigned int zero4 : 3;
unsigned int stream_number_letterbox : 5;
unsigned int zero3 : 3;
unsigned int stream_number_wide : 5;
unsigned int zero2 : 3;
unsigned int stream_number_4_3 : 5;
unsigned int zero1 : 2;
unsigned int available : 1;
#endif
} ATTRIBUTE_PACKED spu_status_t;
#endif
/*
* Describes a given time, and the closest sector, vobu and tmap index
*/
typedef struct {
uint64_t time;
uint32_t sector;
uint32_t vobu_idx;
int32_t tmap_idx;
} dvdnav_pos_data_t;
/*
* Encapsulates cell data
*/
typedef struct {
int32_t idx;
dvdnav_pos_data_t *bgn;
dvdnav_pos_data_t *end;
} dvdnav_cell_data_t;
/*
* Encapsulates common variables used by internal functions of jump_to_time
*/
typedef struct {
vobu_admap_t *admap;
int32_t admap_len;
const vts_tmap_t *tmap;
int32_t tmap_len;
int32_t tmap_interval;
} dvdnav_jump_args_t;
/*
* Utility constants for jump_to_time
*/
#define TMAP_IDX_EDGE_BGN -1
#define TMAP_IDX_EDGE_END -2
#define JUMP_MODE_TIME_AFTER 1
#define JUMP_MODE_TIME_DEFAULT 0
#define JUMP_MODE_TIME_BEFORE -1
typedef struct dvdnav_vobu_s {
int32_t vobu_start; /* Logical Absolute. MAX needed is 0x300000 */
int32_t vobu_length;
int32_t blockN; /* Relative offset */
int32_t vobu_next; /* Relative offset */
} dvdnav_vobu_t;
/** The main DVDNAV type **/
struct dvdnav_s {
/* General data */
char *path; /* Path to DVD device/dir */
dvd_file_t *file; /* Currently opened file */
/* Position data */
vm_position_t position_next;
vm_position_t position_current;
dvdnav_vobu_t vobu;
/* NAV data */
pci_t pci;
dsi_t dsi;
uint32_t last_cmd_nav_lbn; /* detects when a command is issued on an already left NAV */
/* Flags */
int skip_still; /* Set when skipping a still */
int sync_wait; /* applications should wait till they are in sync with us */
int sync_wait_skip; /* Set when skipping wait state */
int spu_clut_changed; /* The SPU CLUT changed */
int started; /* vm_start has been called? */
int use_read_ahead; /* 1 - use read-ahead cache, 0 - don't */
int pgc_based; /* positioning works PGC based instead of PG based */
int cur_cell_time; /* time expired since the beginning of the current cell, read from the dsi */
/* VM */
vm_t *vm;
pthread_mutex_t vm_lock;
/* private context and logger*/
void *priv;
dvdnav_logger_cb logcb;
/* Read-ahead cache */
read_cache_t *cache;
/* Errors */
char err_str[MAX_ERR_LEN];
};
/** HELPER FUNCTIONS **/
/* converts a dvd_time_t to PTS ticks */
int64_t dvdnav_convert_time(const dvd_time_t *time);
/** USEFUL MACROS **/
#ifdef __GNUC__
#define printerrf(format, args...) \
do { if (this) snprintf(this->err_str, MAX_ERR_LEN, format, ## args); } while (0)
#else
#ifdef _MSC_VER
#define printerrf(str) \
do { if (this) snprintf(this->err_str, MAX_ERR_LEN, str); } while (0)
#else
#define printerrf(...) \
do { if (this) snprintf(this->err_str, MAX_ERR_LEN, __VA_ARGS__); } while (0)
#endif /* _MSC_VER */
#endif
#define printerr(str) \
do { if (this) strncpy(this->err_str, str, MAX_ERR_LEN - 1); } while (0)
#endif /* LIBDVDNAV_DVDNAV_INTERNAL_H */
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