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/*
* Copyright (C) 2001-2004 Rich Wareham <[email protected]>
*
* 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*
* $Id: dvdnav_internal.h,v 1.15 2004/09/20 19:30:04 valtri Exp $
*
*/
#ifndef DVDNAV_INTERNAL_H_INCLUDED
#define DVDNAV_INTERNAL_H_INCLUDED
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "common.h"
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <limits.h>
#include <string.h>
#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)
/* 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))
#include <io.h> /* read() */
#define lseek64 _lseeki64
#else
#include <pthread.h>
#endif /* WIN32 */
/* Uncomment for VM command tracing */
/* #define TRACE */
#include "decoder.h"
#include "dvdnav.h"
#include "vm.h"
#include "vmcmd.h"
/* where should libdvdnav write its messages (stdout/stderr) */
#define MSG_OUT stderr
/* Maximum length of an error string */
#define MAX_ERR_LEN 255
/* Use the POSIX PATH_MAX if available */
#ifdef PATH_MAX
#define MAX_PATH_LEN PATH_MAX
#else
#define MAX_PATH_LEN 255 /* Arbitrary */
#endif
#ifndef DVD_VIDEO_LB_LEN
#define DVD_VIDEO_LB_LEN 2048
#endif
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
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[MAX_PATH_LEN]; /* 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 */
/* VM */
vm_t *vm;
pthread_mutex_t vm_lock;
/* Read-ahead cache */
read_cache_t *cache;
/* Errors */
char err_str[MAX_ERR_LEN];
};
/** USEFUL MACROS **/
#ifdef __GNUC__
#define printerrf(format, args...) snprintf(this->err_str, MAX_ERR_LEN, format, ## args);
#else
#ifdef _MSC_VER
#define printerrf(str) snprintf(this->err_str, MAX_ERR_LEN, str);
#else
#define printerrf(...) snprintf(this->err_str, MAX_ERR_LEN, __VA_ARGS__);
#endif /* WIN32 */
#endif
#define printerr(str) strncpy(this->err_str, str, MAX_ERR_LEN);
#endif /* DVDNAV_INTERNAL_H_INCLUDED */
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