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Code Issues Releases Wiki Activity

Finish removing internal libdvdread copy

Browse Source 
This completes the task started in GIT hash 71c6fa
pull/1/head
Timothy Pearson 10 years ago
parent 2fd0830c70
commit b21d0b9415
17 changed files with 0 additions and 8300 deletions
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8
dvdread/Makefile.am
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METASOURCES = AUTO
noinst_LTLIBRARIES = libdvdread.la
libdvdread_la_LDFLAGS = $(all_libraries)
libdvdread_la_SOURCES = dvd_input.c dvd_reader.c dvd_udf.c ifo_read.c md5.c \
nav_read.c
noinst_HEADERS = bswap.h dvd_input.h dvd_reader.h dvd_udf.h dvdread_internal.h \
ifo_read.h ifo_types.h md5.h nav_read.h nav_types.h

126
dvdread/bswap.h
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/* -*- c-basic-offset: 2; indent-tabs-mode: nil -*- */
#ifndef BSWAP_H_INCLUDED
#define BSWAP_H_INCLUDED
/*
* Copyright (C) 2000, 2001 Billy Biggs <vektor@dumbterm.net>,
* Håkan Hjort <d95hjort@dtek.chalmers.se>
*
* This program 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.
*
* This program 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
*/
#if defined(WORDS_BIGENDIAN)
/* All bigendian systems are fine, just ignore the swaps. */
#define B2N_16(x) (void)(x)
#define B2N_32(x) (void)(x)
#define B2N_64(x) (void)(x)
#else
/* For __FreeBSD_version */
#if defined(HAVE_SYS_PARAM_H)
#include <sys/param.h>
#endif
#if defined(__linux__)
#include <byteswap.h>
#define B2N_16(x) x = bswap_16(x)
#define B2N_32(x) x = bswap_32(x)
#define B2N_64(x) x = bswap_64(x)
#elif defined(__NetBSD__)
#include <sys/endian.h>
#define B2N_16(x) BE16TOH(x)
#define B2N_32(x) BE32TOH(x)
#define B2N_64(x) BE64TOH(x)
#elif defined(__OpenBSD__)
#include <sys/endian.h>
#define B2N_16(x) x = swap16(x)
#define B2N_32(x) x = swap32(x)
#define B2N_64(x) x = swap64(x)
#elif defined(__FreeBSD__) && __FreeBSD_version >= 470000
#include <sys/endian.h>
#define B2N_16(x) x = be16toh(x)
#define B2N_32(x) x = be32toh(x)
#if __FreeBSD_version >= 500000
#define B2N_64(x) x = be64toh(x)
#else
#define B2N_64(x) \
x = ((((x) & 0xff00000000000000) >> 56) | \
(((x) & 0x00ff000000000000) >> 40) | \
(((x) & 0x0000ff0000000000) >> 24) | \
(((x) & 0x000000ff00000000) >> 8) | \
(((x) & 0x00000000ff000000) << 8) | \
(((x) & 0x0000000000ff0000) << 24) | \
(((x) & 0x000000000000ff00) << 40) | \
(((x) & 0x00000000000000ff) << 56))
#endif /* _FreeBSD_version >= 500000 */
#elif defined(__DragonFly__)
#include <sys/endian.h>
#define B2N_16(x) x = be16toh(x)
#define B2N_32(x) x = be32toh(x)
#define B2N_64(x) x = be64toh(x)
#elif defined(__APPLE__) || defined(__DARWIN__)
#include <libkern/OSByteOrder.h>
#define B2N_16(x) x = OSSwapBigToHostConstInt16(x)
#define B2N_32(x) x = OSSwapBigToHostConstInt32(x)
#define B2N_64(x) x = OSSwapBigToHostConstInt64(x)
#else
#if defined(__FreeBSD__) || defined(__sun) || defined(__bsdi__) || defined(WIN32) || defined(__BEOS__) || defined(__INTERIX)
/* These systems don't have swap macros */
#else
/* If there isn't a header provided with your system with this functionality
* add the relevant || define( ) to the list above.
*/
#warning "You should add endian swap macros for your system"
#endif
/* This is a slow but portable implementation, it has multiple evaluation
* problems so beware.
* Old FreeBSD's and Solaris don't have <byteswap.h> or any other such
* functionality!
*/
#define B2N_16(x) \
x = ((((x) & 0xff00) >> 8) | \
(((x) & 0x00ff) << 8))
#define B2N_32(x) \
x = ((((x) & 0xff000000) >> 24) | \
(((x) & 0x00ff0000) >> 8) | \
(((x) & 0x0000ff00) << 8) | \
(((x) & 0x000000ff) << 24))
#define B2N_64(x) \
x = ((((x) & 0xff00000000000000) >> 56) | \
(((x) & 0x00ff000000000000) >> 40) | \
(((x) & 0x0000ff0000000000) >> 24) | \
(((x) & 0x000000ff00000000) >> 8) | \
(((x) & 0x00000000ff000000) << 8) | \
(((x) & 0x0000000000ff0000) << 24) | \
(((x) & 0x000000000000ff00) << 40) | \
(((x) & 0x00000000000000ff) << 56))
#endif
#endif /* WORDS_BIGENDIAN */
#endif /* BSWAP_H_INCLUDED */

414
dvdread/dvd_input.c
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/* -*- c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
* Copyright (C) 2002 Samuel Hocevar <sam@zoy.org>,
* Håkan Hjort <d95hjort@dtek.chalmers.se>
*
* This program 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.
*
* This program 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 02111, USA.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#define __USE_GNU /* to get O_DIRECT in linux */
#include <fcntl.h>
#include <unistd.h>
#include "dvd_reader.h"
#include "dvd_input.h"
#include "dvdread_internal.h"
/* The function pointers that is the exported interface of this file. */
dvd_input_t (*dvdinput_open) (const char *);
int (*dvdinput_close) (dvd_input_t);
int (*dvdinput_seek) (dvd_input_t, int);
int (*dvdinput_title) (dvd_input_t, int);
/**
* pointer must be aligned to 2048 bytes
* if reading from a raw/O_DIRECT file
*/
int (*dvdinput_read) (dvd_input_t, void *, int, int);
char * (*dvdinput_error) (dvd_input_t);
#ifdef HAVE_DVDCSS_DVDCSS_H
/* linking to libdvdcss */
#include <dvdcss/dvdcss.h>
#define DVDcss_open(a) dvdcss_open((char*)(a))
#define DVDcss_close dvdcss_close
#define DVDcss_seek dvdcss_seek
#define DVDcss_title dvdcss_title
#define DVDcss_read dvdcss_read
#define DVDcss_error dvdcss_error
#else
/* dlopening libdvdcss */
#include <dlfcn.h>
typedef struct dvdcss_s *dvdcss_handle;
static dvdcss_handle (*DVDcss_open) (const char *);
static int (*DVDcss_close) (dvdcss_handle);
static int (*DVDcss_seek) (dvdcss_handle, int, int);
static int (*DVDcss_title) (dvdcss_handle, int);
static int (*DVDcss_read) (dvdcss_handle, void *, int, int);
static char * (*DVDcss_error) (dvdcss_handle);
#endif
/* The DVDinput handle, add stuff here for new input methods. */
struct dvd_input_s {
/* libdvdcss handle */
dvdcss_handle dvdcss;
/* dummy file input */
int fd;
};
/**
* initialize and open a DVD device or file.
*/
static dvd_input_t css_open(const char *target)
{
dvd_input_t dev;
/* Allocate the handle structure */
dev = (dvd_input_t) malloc(sizeof(struct dvd_input_s));
if(dev == NULL) {
/* malloc has set errno to ENOMEM */
return NULL;
}
/* Really open it with libdvdcss */
dev->dvdcss = DVDcss_open(target);
if(dev->dvdcss == 0) {
free(dev);
dev = NULL;
}
return dev;
}
/**
* return the last error message
*/
static char *css_error(dvd_input_t dev)
{
return DVDcss_error(dev->dvdcss);
}
/**
* seek into the device.
*/
static int css_seek(dvd_input_t dev, int blocks)
{
/* DVDINPUT_NOFLAGS should match the DVDCSS_NOFLAGS value. */
return DVDcss_seek(dev->dvdcss, blocks, DVDINPUT_NOFLAGS);
}
/**
* set the block for the begining of a new title (key).
*/
static int css_title(dvd_input_t dev, int block)
{
return DVDcss_title(dev->dvdcss, block);
}
/**
* read data from the device.
*/
static int css_read(dvd_input_t dev, void *buffer, int blocks, int flags)
{
return DVDcss_read(dev->dvdcss, buffer, blocks, flags);
}
/**
* close the DVD device and clean up the library.
*/
static int css_close(dvd_input_t dev)
{
int ret;
ret = DVDcss_close(dev->dvdcss);
if(ret < 0)
return ret;
free(dev);
return 0;
}
/* Need to use O_BINARY for WIN32 */
#ifndef O_BINARY
#ifdef _O_BINARY
#define O_BINARY _O_BINARY
#else
#define O_BINARY 0
#endif
#endif
/**
* initialize and open a DVD device or file.
*/
static dvd_input_t file_open(const char *target)
{
dvd_input_t dev;
char *use_odirect;
int oflags;
oflags = O_RDONLY | O_BINARY;
use_odirect = getenv("DVDREAD_USE_DIRECT");
if(use_odirect) {
#ifndef O_DIRECT
#define O_DIRECT 0
#endif
oflags |= O_DIRECT;
}
/* Allocate the library structure */
dev = (dvd_input_t) malloc(sizeof(struct dvd_input_s));
if(dev == NULL) {
return NULL;
}
/* Open the device */
dev->fd = open(target, oflags);
if(dev->fd < 0) {
free(dev);
return NULL;
}
return dev;
}
/**
* return the last error message
*/
static char *file_error(dvd_input_t dev)
{
/* use strerror(errno)? */
return (char *)"unknown error";
}
/**
* seek into the device.
*/
static int file_seek(dvd_input_t dev, int blocks)
{
off_t pos = (off_t)blocks * (off_t)DVD_VIDEO_LB_LEN;
pos = lseek(dev->fd, pos, SEEK_SET);
if(pos < 0) {
return pos;
}
/* assert pos % DVD_VIDEO_LB_LEN == 0 */
return (int) (pos / DVD_VIDEO_LB_LEN);
}
/**
* set the block for the begining of a new title (key).
*/
static int file_title(dvd_input_t dev, int block)
{
return -1;
}
/**
* read data from the device.
*/
static int file_read(dvd_input_t dev, void *buffer, int blocks, int flags)
{
size_t len;
ssize_t ret;
unsigned char *buf = buffer;
len = (size_t)blocks * DVD_VIDEO_LB_LEN;
while(len > 0) {
ret = read(dev->fd, buf, len);
if(ret < 0) {
/* One of the reads failed, too bad. We won't even bother
* returning the reads that went ok, and as in the posix spec
* the file postition is left unspecified after a failure. */
return ret;
}
if(ret == 0) {
/* Nothing more to read. Return the whole blocks, if any, that we got.
and adjust the file possition back to the previous block boundary. */
size_t bytes = (size_t)blocks * DVD_VIDEO_LB_LEN - len;
off_t over_read = -(bytes % DVD_VIDEO_LB_LEN);
/*off_t pos =*/ lseek(dev->fd, over_read, SEEK_CUR);
/* should have pos % 2048 == 0 */
return (int) (bytes / DVD_VIDEO_LB_LEN);
}
buf+=ret;
len -= ret;
}
return blocks;
}
/**
* close the DVD device and clean up.
*/
static int file_close(dvd_input_t dev)
{
int ret;
ret = close(dev->fd);
if(ret < 0)
return ret;
free(dev);
return 0;
}
static void *dvdcss_library = NULL;
static int dvdcss_library_init = 0;
/**
* Free any objects allocated by dvdinput_setup.
* Should only be called when libdvdread is not to be used any more.
* Closes dlopened libraries.
*/
void dvdinput_free(void)
{
#ifdef HAVE_DVDCSS_DVDCSS_H
/* linked statically, nothing to free */
return;
#else
if(dvdcss_library) {
dlclose(dvdcss_library);
dvdcss_library = NULL;
}
dvdcss_library_init = 0;
return;
#endif
}
/**
* Setup read functions with either libdvdcss or minimal DVD access.
*/
int dvdinput_setup(void)
{
char **dvdcss_version = NULL;
int verbose;
/* dlopening libdvdcss */
if(dvdcss_library_init) {
/* libdvdcss is already dlopened, function ptrs set */
if(dvdcss_library) {
return 1; /* css available */
} else {
return 0; /* css not available */
}
}
verbose = get_verbose();
#ifdef HAVE_DVDCSS_DVDCSS_H
/* linking to libdvdcss */
dvdcss_library = &dvdcss_library; /* Give it some value != NULL */
/* the DVDcss_* functions have been #defined at the top */
dvdcss_version = &dvdcss_interface_2;
#else
dvdcss_library = dlopen("libdvdcss.so.2", RTLD_LAZY);
if(dvdcss_library != NULL) {
#if defined(__OpenBSD__) && !defined(__ELF__)
#define U_S "_"
#else
#define U_S
#endif
DVDcss_open = (dvdcss_handle (*)(const char*))
dlsym(dvdcss_library, U_S "dvdcss_open");
DVDcss_close = (int (*)(dvdcss_handle))
dlsym(dvdcss_library, U_S "dvdcss_close");
DVDcss_title = (int (*)(dvdcss_handle, int))
dlsym(dvdcss_library, U_S "dvdcss_title");
DVDcss_seek = (int (*)(dvdcss_handle, int, int))
dlsym(dvdcss_library, U_S "dvdcss_seek");
DVDcss_read = (int (*)(dvdcss_handle, void*, int, int))
dlsym(dvdcss_library, U_S "dvdcss_read");
DVDcss_error = (char* (*)(dvdcss_handle))
dlsym(dvdcss_library, U_S "dvdcss_error");
dvdcss_version = (char **)dlsym(dvdcss_library, U_S "dvdcss_interface_2");
if(dlsym(dvdcss_library, U_S "dvdcss_crack")) {
if(verbose >= 0) {
fprintf(stderr,
"libdvdread: Old (pre-0.0.2) version of libdvdcss found.\n"
"libdvdread: You should get the latest version from "
"http://www.videolan.org/\n" );
}
dlclose(dvdcss_library);
dvdcss_library = NULL;
} else if(!DVDcss_open || !DVDcss_close || !DVDcss_title || !DVDcss_seek
|| !DVDcss_read || !DVDcss_error || !dvdcss_version) {
if(verbose >= 0) {
fprintf(stderr, "libdvdread: Missing symbols in libdvdcss.so.2, "
"this shouldn't happen !\n");
}
dlclose(dvdcss_library);
dvdcss_library = NULL;
}
}
#endif /* HAVE_DVDCSS_DVDCSS_H */
dvdcss_library_init = 1;
if(dvdcss_library) {
/*
char *psz_method = getenv( "DVDCSS_METHOD" );
char *psz_verbose = getenv( "DVDCSS_VERBOSE" );
fprintf(stderr, "DVDCSS_METHOD %s\n", psz_method);
fprintf(stderr, "DVDCSS_VERBOSE %s\n", psz_verbose);
*/
if(verbose >= 1) {
fprintf(stderr, "libdvdread: Using libdvdcss version %s for DVD access\n",
*dvdcss_version);
}
/* libdvdcss wrapper functions */
dvdinput_open = css_open;
dvdinput_close = css_close;
dvdinput_seek = css_seek;
dvdinput_title = css_title;
dvdinput_read = css_read;
dvdinput_error = css_error;
return 1;
} else {
if(verbose >= 1) {
fprintf(stderr, "libdvdread: Encrypted DVD support unavailable.\n");
}
/* libdvdcss replacement functions */
dvdinput_open = file_open;
dvdinput_close = file_close;
dvdinput_seek = file_seek;
dvdinput_title = file_title;
dvdinput_read = file_read;
dvdinput_error = file_error;
return 0;
}
}

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dvdread/dvd_input.h
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/* -*- c-basic-offset: 2; indent-tabs-mode: nil -*- */
#ifndef DVD_INPUT_H_INCLUDED
#define DVD_INPUT_H_INCLUDED
/*
* Copyright (C) 2001, 2002 Samuel Hocevar <sam@zoy.org>,
* Håkan Hjort <d95hjort@dtek.chalmers.se>
*
* This program 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.
*
* This program 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 02111, USA.
*/
/**
* Defines and flags. Make sure they fit the libdvdcss API!
*/
#define DVDINPUT_NOFLAGS 0
#define DVDINPUT_READ_DECRYPT (1 << 0)
typedef struct dvd_input_s *dvd_input_t;
/**
* Pointers which will be filled either the input methods functions.
*/
extern dvd_input_t (*dvdinput_open) (const char *);
extern int (*dvdinput_close) (dvd_input_t);
extern int (*dvdinput_seek) (dvd_input_t, int);
extern int (*dvdinput_title) (dvd_input_t, int);
extern int (*dvdinput_read) (dvd_input_t, void *, int, int);
extern char * (*dvdinput_error) (dvd_input_t);
/**
* Free any objects allocated by dvdinput_setup.
* Should only be called when libdvdread is not to be used any more.
* Closes dlopened libraries.
*/
void dvdinput_free(void);
/**
* Setup function accessed by dvd_reader.c. Returns 1 if there is CSS support.
*/
int dvdinput_setup(void);
#endif /* DVD_INPUT_H_INCLUDED */

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dvdread/dvd_reader.c
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dvdread/dvd_reader.h
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/* -*- c-basic-offset: 2; indent-tabs-mode: nil -*- */
#ifndef DVD_READER_H_INCLUDED
#define DVD_READER_H_INCLUDED
/*
* Copyright (C) 2001, 2002 Billy Biggs <vektor@dumbterm.net>,
* Håkan Hjort <d95hjort@dtek.chalmers.se>,
* Björn Englund <d4bjorn@dtek.chalmers.se>
*
* This program 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.
*
* This program 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
*/
#include <sys/types.h>
/**
* The DVD access interface.
*
* This file contains the functions that form the interface to to
* reading files located on a DVD.
*/
/**
* The current version. (0.9.4 => 904, 1.2.3 => 10203)
*/
#define DVDREAD_VERSION 907
/**
* The length of one Logical Block of a DVD.
*/
#define DVD_VIDEO_LB_LEN 2048
/**
* Maximum length of filenames allowed in UDF.
*/
#define MAX_UDF_FILE_NAME_LEN 2048
#ifdef __cplusplus
extern "C" {
#endif
/**
* Opaque type that is used as a handle for one instance of an opened DVD.
*/
typedef struct dvd_reader_s dvd_reader_t;
/**
* Opaque type for a file read handle, much like a normal fd or FILE *.
*/
typedef struct dvd_file_s dvd_file_t;
/**
* Returns the compiled version. (DVDREAD_VERSION as an int)
*/
int DVDVersion(void);
/**
* Opens a block device of a DVD-ROM file, or an image file, or a directory
* name for a mounted DVD or HD copy of a DVD.
*
* If the given file is a block device, or is the mountpoint for a block
* device, then that device is used for CSS authentication using libdvdcss.
* If no device is available, then no CSS authentication is performed,
* and we hope that the image is decrypted.
*
* If the path given is a directory, then the files in that directory may be
* in any one of these formats:
*
* path/VIDEO_TS/VTS_01_1.VOB
* path/video_ts/vts_01_1.vob
* path/VTS_01_1.VOB
* path/vts_01_1.vob
*
* @param path Specifies the the device, file or directory to be used.
* @return If successful a a read handle is returned. Otherwise 0 is returned.
*
* dvd = DVDOpen(path);
*
* Threads: this function uses chdir() and getcwd().
* The current working directory is global to all threads,
* so using chdir/getcwd in another thread could give unexpected results.
*/
dvd_reader_t *DVDOpen( const char * );
/**
* Closes and cleans up the DVD reader object.
*
* You must close all open files before calling this function.
*
* @param dvd A read handle that should be closed.
*
* DVDClose(dvd);
*/
void DVDClose( dvd_reader_t * );
/**
* Initializes libdvdread to be used with multithreading apps.
*
* You must call this function before using any other functions of libdvdread
* if you are going to use libdvdread in multiple threads in your program.
* If you are not using threads, or using libdvdread from just one thread,
* you do not need to call this, but you are allowed to do so anyway.
*
* There are several restrictions on how you can use libdvdread in
* multithreading apps, see further documentation.
*
* If you have called DVDFinish() you need to call DVDInit again to use
* libdvdread in multiple threads.
*
* DVDInit(void);
*/
void DVDInit(void);
/**
* frees any dlopened objects.
*
* You must DVDClose all handles opened with DVDOpen before calling this.
* Use this function if you need to close the dlopened libs and any other
* objects that have been dynamically allocated by libdvdread.
*
* DVDFinish(void);
*/
void DVDFinish(void);
/**
*
*/
typedef enum {
DVD_READ_INFO_FILE, /**< VIDEO_TS.IFO or VTS_XX_0.IFO (title) */
DVD_READ_INFO_BACKUP_FILE, /**< VIDEO_TS.BUP or VTS_XX_0.BUP (title) */
DVD_READ_MENU_VOBS, /**< VIDEO_TS.VOB or VTS_XX_0.VOB (title) */
DVD_READ_TITLE_VOBS /**< VTS_XX_[1-9].VOB (title). All files in
the title set are opened and read as a
single file. */
} dvd_read_domain_t;
/**
*
*/
typedef struct {
off_t size; /**< Total size of file in bytes */
int nr_parts; /**< Number of file parts */
off_t parts_size[9]; /**< Size of each part in bytes */
} dvd_stat_t;
/**
* Stats a file on the DVD given the title number and domain.
* The information about the file is stored in a dvd_stat_t
* which contains information about the size of the file and
* the number of parts in case of a multipart file and the respective
* sizes of the parts.
* A multipart file is for instance VTS_02_1.VOB, VTS_02_2.VOB, VTS_02_3.VOB
* The size of VTS_02_1.VOB will be stored in stat->parts_size[0],
* VTS_02_2.VOB in stat->parts_size[1], ...
* The total size (sum of all parts) is stored in stat->size and
* stat->nr_parts will hold the number of parts.
* Only DVD_READ_TITLE_VOBS (VTS_??_[1-9].VOB) can be multipart files.
*
* This function is only of use if you want to get the size of each file
* in the filesystem. These sizes are not needed to use any other
* functions in libdvdread.
*
* @param dvd A dvd read handle.
* @param titlenum Which Video Title Set should be used, VIDEO_TS is 0.
* @param domain Which domain.
* @param stat Pointer to where the result is stored.
* @return If successful 0, otherwise -1.
*
* int DVDFileStat(dvd, titlenum, domain, stat);
*/
int DVDFileStat(dvd_reader_t *, int, dvd_read_domain_t, dvd_stat_t *);
/**
* Opens a file on the DVD given the title number and domain.
*
* If the title number is 0, the video manager information is opened
* (VIDEO_TS.[IFO,BUP,VOB]). Returns a file structure which may be
* used for reads, or 0 if the file was not found.
*
* @param dvd A dvd read handle.
* @param titlenum Which Video Title Set should be used, VIDEO_TS is 0.
* @param domain Which domain.
* @return If successful a a file read handle is returned, otherwise 0.
*
* dvd_file = DVDOpenFile(dvd, titlenum, domain); */
dvd_file_t *DVDOpenFile( dvd_reader_t *, int, dvd_read_domain_t );
/**
* Closes a file and frees the associated structure.
*
* @param dvd_file The file read handle to be closed.
*
* DVDCloseFile(dvd_file);
*/
void DVDCloseFile( dvd_file_t * );
/**
* Reads block_count number of blocks from the file at the given block offset.
* Returns number of blocks read on success, -1 on error. This call is only
* for reading VOB data, and should not be used when reading the IFO files.
* When reading from an encrypted drive, blocks are decrypted using libdvdcss
* where required.
*
* @param dvd_file A file read handle.
* @param offset Block offset from the start of the file to start reading at.
* @param block_count Number of block to read.
* @param data Pointer to a buffer to write the data into.
* It must be aligned to the logical block size of the device when
* reading from a raw/O_DIRECT device (2048 bytes for DVD)
* @return Returns number of blocks read on success, -1 on error.
*
* blocks_read = DVDReadBlocks(dvd_file, offset, block_count, data);
*/
ssize_t DVDReadBlocks( dvd_file_t *, int, size_t, unsigned char * );
/**
* Seek to the given position in the file. Returns the resulting position in
* bytes from the beginning of the file. The seek position is only used for
* byte reads from the file, the block read call always reads from the given
* offset.
*
* @param dvd_file A file read handle.
* @param seek_offset Byte offset from the start of the file to seek to.
* @return The resulting position in bytes from the beginning of the file.
*
* offset_set = DVDFileSeek(dvd_file, seek_offset);
*/
int DVDFileSeek( dvd_file_t *, int );
/**
* Reads the given number of bytes from the file. This call can only be used
* on the information files, and may not be used for reading from a VOB. This
* reads from and increments the currrent seek position for the file.
*
* @param dvd_file A file read handle.
* @param data Pointer to a buffer to write the data into.
* @param bytes Number of bytes to read.
* @return Returns number of bytes read on success, -1 on error.
*
* bytes_read = DVDReadBytes(dvd_file, data, bytes);
*/
ssize_t DVDReadBytes( dvd_file_t *, void *, size_t );
/**
* Returns the file size in blocks.
*
* @param dvd_file A file read handle.
* @return The size of the file in blocks, -1 on error.
*
* blocks = DVDFileSize(dvd_file);
*/
ssize_t DVDFileSize( dvd_file_t * );
/**
* Get a unique 128 bit disc ID.
* This is the MD5 sum of VIDEO_TS.IFO and the VTS_0?_0.IFO files
* in title order (those that exist).
* If you need a 'text' representation of the id, print it as a
* hexadecimal number, using lowercase letters, discid[0] first.
* I.e. the same format as the command-line 'md5sum' program uses.
*
* @param dvd A read handle to get the disc ID from
* @param discid The buffer to put the disc ID into. The buffer must
* have room for 128 bits (16 chars).
* @return 0 on success, -1 on error.
*/
int DVDDiscID( dvd_reader_t *, unsigned char * );
/**
* Get the UDF VolumeIdentifier and VolumeSetIdentifier
* from the PrimaryVolumeDescriptor.
*
* @param dvd A read handle to get the disc ID from
* @param volid The buffer to put the VolumeIdentifier into.
* The VolumeIdentifier is latin-1 encoded (8bit unicode)
* null terminated and max 32 bytes (including '\0')
* @param volid_size No more than volid_size bytes will be copied to volid.
* If the VolumeIdentifier is truncated because of this
* it will still be null terminated.
* @param volsetid The buffer to put the VolumeSetIdentifier into.
* The VolumeIdentifier is 128 bytes as
* stored in the UDF PrimaryVolumeDescriptor.
* Note that this is not a null terminated string.
* @param volsetid_size At most volsetid_size bytes will be copied to volsetid.
* @return 0 on success, -1 on error.
*/
int DVDUDFVolumeInfo( dvd_reader_t *, char *, unsigned int,
unsigned char *, unsigned int );
/**
* Get the ISO9660 VolumeIdentifier and VolumeSetIdentifier
*
* * Only use this function as fallback if DVDUDFVolumeInfo returns 0 *
* * this will happen on a disc mastered only with a iso9660 filesystem *
* * All video DVD discs have UDF filesystem *
*
* @param dvd A read handle to get the disc ID from
* @param volid The buffer to put the VolumeIdentifier into.
* The VolumeIdentifier is coded with '0-9','A-Z','_'
* null terminated and max 33 bytes (including '\0')
* @param volid_size No more than volid_size bytes will be copied to volid.
* If the VolumeIdentifier is truncated because of this
* it will still be null terminated.
* @param volsetid The buffer to put the VolumeSetIdentifier into.
* The VolumeIdentifier is 128 bytes as
* stored in the ISO9660 PrimaryVolumeDescriptor.
* Note that this is not a null terminated string.
* @param volsetid_size At most volsetid_size bytes will be copied to volsetid.
* @return 0 on success, -1 on error.
*/
int DVDISOVolumeInfo( dvd_reader_t *, char *, unsigned int,
unsigned char *, unsigned int );
/**
* Sets the level of caching that is done when reading from a device
*
* @param dvd A read handle to get the disc ID from
* @param level The level of caching wanted.
* -1 - returns the current setting.
* 0 - UDF Cache turned off.
* 1 - (default level) Pointers to IFO files and some data from
* PrimaryVolumeDescriptor are cached.
*
* @return The level of caching.
*/
int DVDUDFCacheLevel( dvd_reader_t *, int );
#ifdef __cplusplus
};
#endif
#endif /* DVD_READER_H_INCLUDED */

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dvdread/dvd_udf.c
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/* -*- c-basic-offset: 2; indent-tabs-mode: nil -*- */
#ifndef DVD_UDF_H_INCLUDED
#define DVD_UDF_H_INCLUDED
/*
* This code is based on dvdudf by:
* Christian Wolff <scarabaeus@convergence.de>.
*
* Modifications by:
* Billy Biggs <vektor@dumbterm.net>.
* Björn Englund <d4bjorn@dtek.chalmers.se>.
*
* dvdudf: parse and read the UDF volume information of a DVD Video
* Copyright (C) 1999 Christian Wolff for convergence integrated media
* GmbH The author can be reached at scarabaeus@convergence.de, the
* project's page is at http://linuxtv.org/dvd/
*
* This program 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.
*
* This program 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. Or, point your browser to
* http://www.gnu.org/copyleft/gpl.html
*/
#if defined(HAVE_INTTYPES_H)
#include <inttypes.h>
#elif defined(HAVE_STDINT_H)
#include <stdint.h>
#endif
#include "dvd_reader.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* Looks for a file on the UDF disc/imagefile and returns the block number
* where it begins, or 0 if it is not found. The filename should be an
* absolute pathname on the UDF filesystem, starting with '/'. For example,
* '/VIDEO_TS/VTS_01_1.IFO'. On success, filesize will be set to the size of
* the file in bytes.
* This implementation relies on that the file size is less than 2^32
* A DVD file can at most be 2^30 (-2048 ?).
*/
uint32_t UDFFindFile( dvd_reader_t *device, char *filename, uint32_t *size );
void FreeUDFCache(dvd_reader_t *device, void *cache);
int UDFGetVolumeIdentifier(dvd_reader_t *device,
char *volid, unsigned int volid_size);
int UDFGetVolumeSetIdentifier(dvd_reader_t *device,
uint8_t *volsetid, unsigned int volsetid_size);
#ifdef __cplusplus
};
#endif
#endif /* DVD_UDF_H_INCLUDED */

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/* -*- c-basic-offset: 2; indent-tabs-mode: nil -*- */
#ifndef DVDREAD_INTERNAL_H
#define DVDREAD_INTERNAL_H
#define CHECK_VALUE(arg) \
if(!(arg)) { \
fprintf(stderr, "\n*** libdvdread: CHECK_VALUE failed in %s:%i ***" \
"\n*** for %s ***\n\n", \
__FILE__, __LINE__, # arg ); \
}
int get_verbose(void);
int dvdread_verbose(dvd_reader_t *dvd);
dvd_reader_t *device_of_file(dvd_file_t *file);
#endif /* DVDREAD_INTERNAL_H */

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dvdread/ifo_read.c
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/* -*- c-basic-offset: 2; indent-tabs-mode: nil -*- */
#ifndef IFO_READ_H_INCLUDED
#define IFO_READ_H_INCLUDED
/*
* Copyright (C) 2000, 2001, 2002 Björn Englund <d4bjorn@dtek.chalmers.se>,
* Håkan Hjort <d95hjort@dtek.chalmers.se>
*
* This program 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.
*
* This program 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
*/
#include "ifo_types.h"
#include "dvd_reader.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* handle = ifoOpen(dvd, title);
*
* Opens an IFO and reads in all the data for the IFO file corresponding to the
* given title. If title 0 is given, the video manager IFO file is read.
* Returns a handle to a completely parsed structure.
*/
ifo_handle_t *ifoOpen(dvd_reader_t *, int );
/**
* handle = ifoOpenVMGI(dvd);
*
* Opens an IFO and reads in _only_ the vmgi_mat data. This call can be used
* together with the calls below to read in each segment of the IFO file on
* demand.
*/
ifo_handle_t *ifoOpenVMGI(dvd_reader_t *);
/**
* handle = ifoOpenVTSI(dvd, title);
*
* Opens an IFO and reads in _only_ the vtsi_mat data. This call can be used
* together with the calls below to read in each segment of the IFO file on
* demand.
*/
ifo_handle_t *ifoOpenVTSI(dvd_reader_t *, int);
/**
* ifoClose(ifofile);
* Cleans up the IFO information. This will free all data allocated for the
* substructures.
*/
void ifoClose(ifo_handle_t *);
/**
* The following functions are for reading only part of the VMGI/VTSI files.
* Returns 1 if the data was successfully read and 0 on error.
*/
/**
* okay = ifoRead_PLT_MAIT(ifofile);
*
* Read in the Parental Management Information table, filling the
* ifofile->ptl_mait structure and its substructures. This data is only
* located in the video manager information file. This fills the
* ifofile->ptl_mait structure and all its substructures.
*/
int ifoRead_PTL_MAIT(ifo_handle_t *);
/**
* okay = ifoRead_VTS_ATRT(ifofile);
*
* Read in the attribute table for the main menu vob, filling the
* ifofile->vts_atrt structure and its substructures. Only located in the
* video manager information file. This fills in the ifofile->vts_atrt
* structure and all its substructures.
*/
int ifoRead_VTS_ATRT(ifo_handle_t *);
/**
* okay = ifoRead_TT_SRPT(ifofile);
*
* Reads the title info for the main menu, filling the ifofile->tt_srpt
* structure and its substructures. This data is only located in the video
* manager information file. This structure is mandatory in the IFO file.
*/
int ifoRead_TT_SRPT(ifo_handle_t *);
/**
* okay = ifoRead_VTS_PTT_SRPT(ifofile);
*
* Reads in the part of title search pointer table, filling the
* ifofile->vts_ptt_srpt structure and its substructures. This data is only
* located in the video title set information file. This structure is
* mandatory, and must be included in the VTSI file.
*/
int ifoRead_VTS_PTT_SRPT(ifo_handle_t *);
/**
* okay = ifoRead_FP_PGC(ifofile);
*
* Reads in the first play program chain data, filling the
* ifofile->first_play_pgc structure. This data is only located in the video
* manager information file (VMGI). This structure is optional.
*/
int ifoRead_FP_PGC(ifo_handle_t *);
/**
* okay = ifoRead_PGCIT(ifofile);
*
* Reads in the program chain information table for the video title set. Fills
* in the ifofile->vts_pgcit structure and its substructures, which includes
* the data for each program chain in the set. This data is only located in
* the video title set information file. This structure is mandatory, and must
* be included in the VTSI file.
*/
int ifoRead_PGCIT(ifo_handle_t *);
/**
* okay = ifoRead_PGCI_UT(ifofile);
*
* Reads in the menu PGCI unit table for the menu VOB. For the video manager,
* this corresponds to the VIDEO_TS.VOB file, and for each title set, this
* corresponds to the VTS_XX_0.VOB file. This data is located in both the
* video manager and video title set information files. For VMGI files, this
* fills the ifofile->vmgi_pgci_ut structure and all its substructures. For
* VTSI files, this fills the ifofile->vtsm_pgci_ut structure.
*/
int ifoRead_PGCI_UT(ifo_handle_t *);
/**
* okay = ifoRead_VTS_TMAPT(ifofile);
*
* Reads in the VTS Time Map Table, this data is only located in the video
* title set information file. This fills the ifofile->vts_tmapt structure
* and all its substructures. When pressent enables VOBU level time-based
* seeking for One_Sequential_PGC_Titles.
*/
int ifoRead_VTS_TMAPT(ifo_handle_t *);
/**
* okay = ifoRead_C_ADT(ifofile);
*
* Reads in the cell address table for the menu VOB. For the video manager,
* this corresponds to the VIDEO_TS.VOB file, and for each title set, this
* corresponds to the VTS_XX_0.VOB file. This data is located in both the
* video manager and video title set information files. For VMGI files, this
* fills the ifofile->vmgm_c_adt structure and all its substructures. For VTSI
* files, this fills the ifofile->vtsm_c_adt structure.
*/
int ifoRead_C_ADT(ifo_handle_t *);
/**
* okay = ifoRead_TITLE_C_ADT(ifofile);
*
* Reads in the cell address table for the video title set corresponding to
* this IFO file. This data is only located in the video title set information
* file. This structure is mandatory, and must be included in the VTSI file.
* This call fills the ifofile->vts_c_adt structure and its substructures.
*/
int ifoRead_TITLE_C_ADT(ifo_handle_t *);
/**
* okay = ifoRead_VOBU_ADMAP(ifofile);
*
* Reads in the VOBU address map for the menu VOB. For the video manager, this
* corresponds to the VIDEO_TS.VOB file, and for each title set, this
* corresponds to the VTS_XX_0.VOB file. This data is located in both the
* video manager and video title set information files. For VMGI files, this
* fills the ifofile->vmgm_vobu_admap structure and all its substructures. For
* VTSI files, this fills the ifofile->vtsm_vobu_admap structure.
*/
int ifoRead_VOBU_ADMAP(ifo_handle_t *);
/**
* okay = ifoRead_TITLE_VOBU_ADMAP(ifofile);
*
* Reads in the VOBU address map for the associated video title set. This data
* is only located in the video title set information file. This structure is
* mandatory, and must be included in the VTSI file. Fills the
* ifofile->vts_vobu_admap structure and its substructures.
*/
int ifoRead_TITLE_VOBU_ADMAP(ifo_handle_t *);
/**
* okay = ifoRead_TXTDT_MGI(ifofile);
*
* Reads in the text data strings for the DVD. Fills the ifofile->txtdt_mgi
* structure and all its substructures. This data is only located in the video
* manager information file. This structure is mandatory, and must be included
* in the VMGI file.
*/
int ifoRead_TXTDT_MGI(ifo_handle_t *);
/**
* The following functions are used for freeing parsed sections of the
* ifo_handle_t structure and the allocated substructures. The free calls
* below are safe: they will not mind if you attempt to free part of an IFO
* file which was not read in or which does not exist.
*/
void ifoFree_PTL_MAIT(ifo_handle_t *);
void ifoFree_VTS_ATRT(ifo_handle_t *);
void ifoFree_TT_SRPT(ifo_handle_t *);
void ifoFree_VTS_PTT_SRPT(ifo_handle_t *);
void ifoFree_FP_PGC(ifo_handle_t *);
void ifoFree_PGCIT(ifo_handle_t *);
void ifoFree_PGCI_UT(ifo_handle_t *);
void ifoFree_VTS_TMAPT(ifo_handle_t *);
void ifoFree_C_ADT(ifo_handle_t *);
void ifoFree_TITLE_C_ADT(ifo_handle_t *);
void ifoFree_VOBU_ADMAP(ifo_handle_t *);
void ifoFree_TITLE_VOBU_ADMAP(ifo_handle_t *);
void ifoFree_TXTDT_MGI(ifo_handle_t *);
#ifdef __cplusplus
};
#endif
#endif /* IFO_READ_H_INCLUDED */

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/* -*- c-basic-offset: 2; indent-tabs-mode: nil -*- */
#ifndef IFO_TYPES_H_INCLUDED
#define IFO_TYPES_H_INCLUDED
/*
* Copyright (C) 2000, 2001 Björn Englund <d4bjorn@dtek.chalmers.se>,
* Håkan Hjort <d95hjort@dtek.chalmers.se>
*
* This program 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.
*
* This program 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
*/
#include "dvd_reader.h"
#if defined(__BEOS__)
#if !defined(_INTTYPES_H_) && !defined(_INTTYPES_H) && !defined(_STDINT_H_) && !defined(_STDINT_H)
#error "Must include <inttypes.h> or <stdint.h> before any libdvdread header."
#endif
#else
#if !defined(UINT8_MAX) || !defined(UINT16_MAX) || !defined(INT32_MAX)
#error "Must include <inttypes.h> or <stdint.h> before any libdvdread header."
#endif
#endif
#undef ATTRIBUTE_PACKED
#undef PRAGMA_PACK_BEGIN
#undef PRAGMA_PACK_END
#if defined(__GNUC__)
#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95)
#define ATTRIBUTE_PACKED __attribute__ ((packed))
#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;
/**
* 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 {
#ifdef WORDS_BIGENDIAN
unsigned int mpeg_version : 2;
unsigned int video_format : 2;
unsigned int display_aspect_ratio : 2;
unsigned int permitted_df : 2;
unsigned int line21_cc_1 : 1;
unsigned int line21_cc_2 : 1;
unsigned int unknown1 : 1;
unsigned int bit_rate : 1;
unsigned int picture_size : 2;
unsigned int letterboxed : 1;
unsigned int film_mode : 1;
#else
unsigned int permitted_df : 2;
unsigned int display_aspect_ratio : 2;
unsigned int video_format : 2;
unsigned int mpeg_version : 2;
unsigned int film_mode : 1;
unsigned int letterboxed : 1;
unsigned int picture_size : 2;
unsigned int bit_rate : 1;
unsigned int unknown1 : 1;
unsigned int line21_cc_2 : 1;
unsigned int line21_cc_1 : 1;
#endif
} ATTRIBUTE_PACKED video_attr_t;
/**
* Audio Attributes.
*/
typedef struct {
#ifdef WORDS_BIGENDIAN
unsigned int audio_format : 3;
unsigned int multichannel_extension : 1;
unsigned int lang_type : 2;
unsigned int application_mode : 2;
unsigned int quantization : 2;
unsigned int sample_frequency : 2;
unsigned int unknown1 : 1;
unsigned int channels : 3;
#else
unsigned int application_mode : 2;
unsigned int lang_type : 2;
unsigned int multichannel_extension : 1;
unsigned int audio_format : 3;
unsigned int channels : 3;
unsigned int unknown1 : 1;
unsigned int sample_frequency : 2;
unsigned int quantization : 2;
#endif
uint16_t lang_code;
uint8_t lang_extension;
uint8_t code_extension;
uint8_t unknown3;
union {
struct {
#ifdef WORDS_BIGENDIAN
unsigned int unknown4 : 1;
unsigned int channel_assignment : 3;
unsigned int version : 2;
unsigned int mc_intro : 1; /* probably 0: true, 1:false */
unsigned int mode : 1; /* Karaoke mode 0: solo 1: duet */
#else
unsigned int mode : 1;
unsigned int mc_intro : 1;
unsigned int version : 2;
unsigned int channel_assignment : 3;
unsigned int unknown4 : 1;
#endif
} ATTRIBUTE_PACKED karaoke;
struct {
#ifdef WORDS_BIGENDIAN
unsigned int unknown5 : 4;
unsigned int dolby_encoded : 1; /* suitable for surround decoding */
unsigned int unknown6 : 3;
#else
unsigned int unknown6 : 3;
unsigned int dolby_encoded : 1;
unsigned int unknown5 : 4;
#endif
} ATTRIBUTE_PACKED surround;
} ATTRIBUTE_PACKED app_info;
} ATTRIBUTE_PACKED audio_attr_t;
/**
* MultiChannel Extension
*/
typedef struct {
#ifdef WORDS_BIGENDIAN
unsigned int zero1 : 7;
unsigned int ach0_gme : 1;
unsigned int zero2 : 7;
unsigned int ach1_gme : 1;
unsigned int zero3 : 4;
unsigned int ach2_gv1e : 1;
unsigned int ach2_gv2e : 1;
unsigned int ach2_gm1e : 1;
unsigned int ach2_gm2e : 1;
unsigned int zero4 : 4;
unsigned int ach3_gv1e : 1;
unsigned int ach3_gv2e : 1;
unsigned int ach3_gmAe : 1;
unsigned int ach3_se2e : 1;
unsigned int zero5 : 4;
unsigned int ach4_gv1e : 1;
unsigned int ach4_gv2e : 1;
unsigned int ach4_gmBe : 1;
unsigned int ach4_seBe : 1;
#else
unsigned int ach0_gme : 1;
unsigned int zero1 : 7;
unsigned int ach1_gme : 1;
unsigned int zero2 : 7;
unsigned int ach2_gm2e : 1;
unsigned int ach2_gm1e : 1;
unsigned int ach2_gv2e : 1;
unsigned int ach2_gv1e : 1;
unsigned int zero3 : 4;
unsigned int ach3_se2e : 1;
unsigned int ach3_gmAe : 1;
unsigned int ach3_gv2e : 1;
unsigned int ach3_gv1e : 1;
unsigned int zero4 : 4;
unsigned int ach4_seBe : 1;
unsigned int ach4_gmBe : 1;
unsigned int ach4_gv2e : 1;
unsigned int ach4_gv1e : 1;
unsigned int zero5 : 4;
#endif
uint8_t zero6[19];
} ATTRIBUTE_PACKED multichannel_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
*/
#ifdef WORDS_BIGENDIAN
unsigned int code_mode : 3;
unsigned int zero1 : 3;
unsigned int type : 2;
#else
unsigned int type : 2;
unsigned int zero1 : 3;
unsigned int code_mode : 3;
#endif
uint8_t zero2;
uint16_t lang_code;
uint8_t lang_extension;
uint8_t code_extension;
} ATTRIBUTE_PACKED subp_attr_t;
/**
* 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 {
#ifdef WORDS_BIGENDIAN
unsigned int block_mode : 2;
unsigned int block_type : 2;
unsigned int seamless_play : 1;
unsigned int interleaved : 1;
unsigned int stc_discontinuity: 1;
unsigned int seamless_angle : 1;
unsigned int playback_mode : 1; /**< When set, enter StillMode after each VOBU */
unsigned int restricted : 1; /**< ?? drop out of fastforward? */
unsigned int unknown2 : 6;
#else
unsigned int seamless_angle : 1;
unsigned int stc_discontinuity: 1;
unsigned int interleaved : 1;
unsigned int seamless_play : 1;
unsigned int block_type : 2;
unsigned int block_mode : 2;
unsigned int unknown2 : 6;
unsigned int restricted : 1;
unsigned int playback_mode : 1;
#endif
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 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;
/**
* User Operations.
*/
typedef struct {
#ifdef WORDS_BIGENDIAN
unsigned int zero : 7; /* 25-31 */
unsigned int video_pres_mode_change : 1; /* 24 */
unsigned int karaoke_audio_pres_mode_change : 1; /* 23 */
unsigned int angle_change : 1;
unsigned int subpic_stream_change : 1;
unsigned int audio_stream_change : 1;
unsigned int pause_on : 1;
unsigned int still_off : 1;
unsigned int button_select_or_activate : 1;
unsigned int resume : 1; /* 16 */
unsigned int chapter_menu_call : 1; /* 15 */
unsigned int angle_menu_call : 1;
unsigned int audio_menu_call : 1;
unsigned int subpic_menu_call : 1;
unsigned int root_menu_call : 1;
unsigned int title_menu_call : 1;
unsigned int backward_scan : 1;
unsigned int forward_scan : 1; /* 8 */
unsigned int next_pg_search : 1; /* 7 */
unsigned int prev_or_top_pg_search : 1;
unsigned int time_or_chapter_search : 1;
unsigned int go_up : 1;
unsigned int stop : 1;
unsigned int title_play : 1;
unsigned int chapter_search_or_play : 1;
unsigned int title_or_time_play : 1; /* 0 */
#else
unsigned int video_pres_mode_change : 1; /* 24 */
unsigned int zero : 7; /* 25-31 */
unsigned int resume : 1; /* 16 */
unsigned int button_select_or_activate : 1;
unsigned int still_off : 1;
unsigned int pause_on : 1;
unsigned int audio_stream_change : 1;
unsigned int subpic_stream_change : 1;
unsigned int angle_change : 1;
unsigned int karaoke_audio_pres_mode_change : 1; /* 23 */
unsigned int forward_scan : 1; /* 8 */
unsigned int backward_scan : 1;
unsigned int title_menu_call : 1;
unsigned int root_menu_call : 1;
unsigned int subpic_menu_call : 1;
unsigned int audio_menu_call : 1;
unsigned int angle_menu_call : 1;
unsigned int chapter_menu_call : 1; /* 15 */
unsigned int title_or_time_play : 1; /* 0 */
unsigned int chapter_search_or_play : 1;
unsigned int title_play : 1;
unsigned int stop : 1;
unsigned int go_up : 1;
unsigned int time_or_chapter_search : 1;
unsigned int prev_or_top_pg_search : 1;
unsigned int next_pg_search : 1; /* 7 */
#endif
} ATTRIBUTE_PACKED user_ops_t;
/**
* 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;
} ATTRIBUTE_PACKED pgc_t;
#define PGC_SIZE 236U
/**
* Program Chain Information Search Pointer.
*/
typedef struct {
uint8_t entry_id;
#ifdef WORDS_BIGENDIAN
unsigned int block_mode : 2;
unsigned int block_type : 2;
unsigned int unknown1 : 4;
#else
unsigned int unknown1 : 4;
unsigned int block_type : 2;
unsigned int block_mode : 2;
#endif
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;
} 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;
/**
* 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;
typedef struct {
#ifdef WORDS_BIGENDIAN
unsigned int zero_1 : 1;
unsigned int multi_or_random_pgc_title : 1; /* 0: one sequential pgc title */
unsigned int jlc_exists_in_cell_cmd : 1;
unsigned int jlc_exists_in_prepost_cmd : 1;
unsigned int jlc_exists_in_button_cmd : 1;
unsigned int jlc_exists_in_tt_dom : 1;
unsigned int chapter_search_or_play : 1; /* UOP 1 */
unsigned int title_or_time_play : 1; /* UOP 0 */
#else
unsigned int title_or_time_play : 1;
unsigned int chapter_search_or_play : 1;
unsigned int jlc_exists_in_tt_dom : 1;
unsigned int jlc_exists_in_button_cmd : 1;
unsigned int jlc_exists_in_prepost_cmd : 1;
unsigned int jlc_exists_in_cell_cmd : 1;
unsigned int multi_or_random_pgc_title : 1;
unsigned int zero_1 : 1;
#endif
} ATTRIBUTE_PACKED playback_type_t;
/**
* 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;
/**
* 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
*/
typedef uint16_t pf_level_t[8];
/**
* 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; /* ?? allways 0x30 language?, text format? */
uint8_t unknown5;
uint16_t offset; /* from first */
char text[12]; /* ended by 0x09 */
#endif
} ATTRIBUTE_PACKED txtdt_t;
/**
* Text Data Language Unit. (Incomplete)
*/
typedef struct {
uint16_t lang_code;
uint16_t unknown; /* 0x0001, title 1? disc 1? side 1? */
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[14]; /* how many bytes?? */
uint16_t nr_of_language_units; /* 32bit?? */
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;
/**
* PartOfTitle Unit Information.
*/
typedef struct {
uint16_t pgcn;
uint16_t pgn;
} ATTRIBUTE_PACKED ptt_info_t;
/**
* PartOfTitle Information.
*/
typedef struct {
uint16_t nr_of_ptts;
ptt_info_t *ptt;
} ATTRIBUTE_PACKED ttu_t;
/**
* 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
#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 struct {
dvd_file_t *file;
/* 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;
} ifo_handle_t;
#endif /* IFO_TYPES_H_INCLUDED */

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dvdread/md5.c
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@ -1,407 +0,0 @@
/* -*- c-basic-offset: 2; indent-tabs-mode: nil -*- */
/* md5.c - Functions to compute MD5 message digest of files or memory blocks
according to the definition of MD5 in RFC 1321 from April 1992.
Copyright (C) 1995, 1996, 2001 Free Software Foundation, Inc.
NOTE: The canonical source of this file is maintained with the GNU C
Library. Bugs can be reported to bug-glibc@prep.ai.mit.edu.
This program 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, or (at your option) any
later version.
This program 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. */
/* Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. */
#include "config.h"
#include <sys/types.h>
#include <stdlib.h>
#include <string.h>
#include "md5.h"
#ifdef _LIBC
# include <endian.h>
# if __BYTE_ORDER == __BIG_ENDIAN
# define WORDS_BIGENDIAN 1
# endif
#endif
#ifdef WORDS_BIGENDIAN
# define SWAP(n) \
(((n) << 24) | (((n) & 0xff00) << 8) | (((n) >> 8) & 0xff00) | ((n) >> 24))
#else
# define SWAP(n) (n)
#endif
/* This array contains the bytes used to pad the buffer to the next
64-byte boundary. (RFC 1321, 3.1: Step 1) */
static const unsigned char fillbuf[64] = { 0x80, 0 /* , 0, 0, ... */ };
/* Initialize structure containing state of computation.
(RFC 1321, 3.3: Step 3) */
void
md5_init_ctx (ctx)
struct md5_ctx *ctx;
{
ctx->A = 0x67452301;
ctx->B = 0xefcdab89;
ctx->C = 0x98badcfe;
ctx->D = 0x10325476;
ctx->total[0] = ctx->total[1] = 0;
ctx->buflen = 0;
}
/* Put result from CTX in first 16 bytes following RESBUF. The result
must be in little endian byte order.
IMPORTANT: On some systems it is required that RESBUF is correctly
aligned for a 32 bits value. */
void *
md5_read_ctx (ctx, resbuf)
const struct md5_ctx *ctx;
void *resbuf;
{
((md5_uint32 *) resbuf)[0] = SWAP (ctx->A);
((md5_uint32 *) resbuf)[1] = SWAP (ctx->B);
((md5_uint32 *) resbuf)[2] = SWAP (ctx->C);
((md5_uint32 *) resbuf)[3] = SWAP (ctx->D);
return resbuf;
}
/* Process the remaining bytes in the internal buffer and the usual
prolog according to the standard and write the result to RESBUF.
IMPORTANT: On some systems it is required that RESBUF is correctly
aligned for a 32 bits value. */
void *
md5_finish_ctx (ctx, resbuf)
struct md5_ctx *ctx;
void *resbuf;
{
/* Take yet unprocessed bytes into account. */
md5_uint32 bytes = ctx->buflen;
size_t pad;
/* Now count remaining bytes. */
ctx->total[0] += bytes;
if (ctx->total[0] < bytes)
++ctx->total[1];
pad = bytes >= 56 ? 64 + 56 - bytes : 56 - bytes;
memcpy (&ctx->buffer[bytes], fillbuf, pad);
/* Put the 64-bit file length in *bits* at the end of the buffer. */
*(md5_uint32 *) &ctx->buffer[bytes + pad] = SWAP (ctx->total[0] << 3);
*(md5_uint32 *) &ctx->buffer[bytes + pad + 4] = SWAP ((ctx->total[1] << 3) |
(ctx->total[0] >> 29));
/* Process last bytes. */
md5_process_block (ctx->buffer, bytes + pad + 8, ctx);
return md5_read_ctx (ctx, resbuf);
}
/* Compute MD5 message digest for bytes read from STREAM. The
resulting message digest number will be written into the 16 bytes
beginning at RESBLOCK. */
int
md5_stream (stream, resblock)
FILE *stream;
void *resblock;
{
/* Important: BLOCKSIZE must be a multiple of 64. */
#define BLOCKSIZE 4096
struct md5_ctx ctx;
char buffer[BLOCKSIZE + 72];
size_t sum;
/* Initialize the computation context. */
md5_init_ctx (&ctx);
/* Iterate over full file contents. */
while (1)
{
/* We read the file in blocks of BLOCKSIZE bytes. One call of the
computation function processes the whole buffer so that with the
next round of the loop another block can be read. */
size_t n;
sum = 0;
/* Read block. Take care for partial reads. */
do
{
n = fread (buffer + sum, 1, BLOCKSIZE - sum, stream);
sum += n;
}
while (sum < BLOCKSIZE && n != 0);
if (n == 0 && ferror (stream))
return 1;
/* If end of file is reached, end the loop. */
if (n == 0)
break;
/* Process buffer with BLOCKSIZE bytes. Note that
BLOCKSIZE % 64 == 0
*/
md5_process_block (buffer, BLOCKSIZE, &ctx);
}
/* Add the last bytes if necessary. */
if (sum > 0)
md5_process_bytes (buffer, sum, &ctx);
/* Construct result in desired memory. */
md5_finish_ctx (&ctx, resblock);
return 0;
}
/* Compute MD5 message digest for LEN bytes beginning at BUFFER. The
result is always in little endian byte order, so that a byte-wise
output yields to the wanted ASCII representation of the message
digest. */
void *
md5_buffer (buffer, len, resblock)
const char *buffer;
size_t len;
void *resblock;
{
struct md5_ctx ctx;
/* Initialize the computation context. */
md5_init_ctx (&ctx);
/* Process whole buffer but last len % 64 bytes. */
md5_process_bytes (buffer, len, &ctx);
/* Put result in desired memory area. */
return md5_finish_ctx (&ctx, resblock);
}
void
md5_process_bytes (buffer, len, ctx)
const void *buffer;
size_t len;
struct md5_ctx *ctx;
{
/* When we already have some bits in our internal buffer concatenate
both inputs first. */
if (ctx->buflen != 0)
{
size_t left_over = ctx->buflen;
size_t add = 128 - left_over > len ? len : 128 - left_over;
memcpy (&ctx->buffer[left_over], buffer, add);
ctx->buflen += add;
if (left_over + add > 64)
{
md5_process_block (ctx->buffer, (left_over + add) & ~63, ctx);
/* The regions in the following copy operation cannot overlap. */
memcpy (ctx->buffer, &ctx->buffer[(left_over + add) & ~63],
(left_over + add) & 63);
ctx->buflen = (left_over + add) & 63;
}
buffer = (const char *) buffer + add;
len -= add;
}
/* Process available complete blocks. */
if (len > 64)
{
md5_process_block (buffer, len & ~63, ctx);
buffer = (const char *) buffer + (len & ~63);
len &= 63;
}
/* Move remaining bytes in internal buffer. */
if (len > 0)
{
memcpy (ctx->buffer, buffer, len);
ctx->buflen = len;
}
}
/* These are the four functions used in the four steps of the MD5 algorithm
and defined in the RFC 1321. The first function is a little bit optimized
(as found in Colin Plumbs public domain implementation). */
/* #define FF(b, c, d) ((b & c) | (~b & d)) */
#define FF(b, c, d) (d ^ (b & (c ^ d)))
#define FG(b, c, d) FF (d, b, c)
#define FH(b, c, d) (b ^ c ^ d)
#define FI(b, c, d) (c ^ (b | ~d))
/* Process LEN bytes of BUFFER, accumulating context into CTX.
It is assumed that LEN % 64 == 0. */
void
md5_process_block (buffer, len, ctx)
const void *buffer;
size_t len;
struct md5_ctx *ctx;
{
md5_uint32 correct_words[16];
const md5_uint32 *words = buffer;
size_t nwords = len / sizeof (md5_uint32);
const md5_uint32 *endp = words + nwords;
md5_uint32 A = ctx->A;
md5_uint32 B = ctx->B;
md5_uint32 C = ctx->C;
md5_uint32 D = ctx->D;
/* First increment the byte count. RFC 1321 specifies the possible
length of the file up to 2^64 bits. Here we only compute the
number of bytes. Do a double word increment. */
ctx->total[0] += len;
if (ctx->total[0] < len)
++ctx->total[1];
/* Process all bytes in the buffer with 64 bytes in each round of
the loop. */
while (words < endp)
{
md5_uint32 *cwp = correct_words;
md5_uint32 A_save = A;
md5_uint32 B_save = B;
md5_uint32 C_save = C;
md5_uint32 D_save = D;
/* First round: using the given function, the context and a constant
the next context is computed. Because the algorithms processing
unit is a 32-bit word and it is determined to work on words in
little endian byte order we perhaps have to change the byte order
before the computation. To reduce the work for the next steps
we store the swapped words in the array CORRECT_WORDS. */
#define OP(a, b, c, d, s, T) \
do \
{ \
a += FF (b, c, d) + (*cwp++ = SWAP (*words)) + T; \
++words; \
a = rol (a, s); \
a += b; \
} \
while (0)
/* Before we start, one word to the strange constants.
They are defined in RFC 1321 as
T[i] = (int) (4294967296.0 * fabs (sin (i))), i=1..64, or
perl -e 'foreach(1..64){printf "0x%08x\n", int (4294967296 * abs (sin $_))}'
*/
/* Round 1. */
OP (A, B, C, D, 7, 0xd76aa478);
OP (D, A, B, C, 12, 0xe8c7b756);
OP (C, D, A, B, 17, 0x242070db);
OP (B, C, D, A, 22, 0xc1bdceee);
OP (A, B, C, D, 7, 0xf57c0faf);
OP (D, A, B, C, 12, 0x4787c62a);
OP (C, D, A, B, 17, 0xa8304613);
OP (B, C, D, A, 22, 0xfd469501);
OP (A, B, C, D, 7, 0x698098d8);
OP (D, A, B, C, 12, 0x8b44f7af);
OP (C, D, A, B, 17, 0xffff5bb1);
OP (B, C, D, A, 22, 0x895cd7be);
OP (A, B, C, D, 7, 0x6b901122);
OP (D, A, B, C, 12, 0xfd987193);
OP (C, D, A, B, 17, 0xa679438e);
OP (B, C, D, A, 22, 0x49b40821);
/* For the second to fourth round we have the possibly swapped words
in CORRECT_WORDS. Redefine the macro to take an additional first
argument specifying the function to use. */
#undef OP
#define OP(f, a, b, c, d, k, s, T) \
do \
{ \
a += f (b, c, d) + correct_words[k] + T; \
a = rol (a, s); \
a += b; \
} \
while (0)
/* Round 2. */
OP (FG, A, B, C, D, 1, 5, 0xf61e2562);
OP (FG, D, A, B, C, 6, 9, 0xc040b340);
OP (FG, C, D, A, B, 11, 14, 0x265e5a51);
OP (FG, B, C, D, A, 0, 20, 0xe9b6c7aa);
OP (FG, A, B, C, D, 5, 5, 0xd62f105d);
OP (FG, D, A, B, C, 10, 9, 0x02441453);
OP (FG, C, D, A, B, 15, 14, 0xd8a1e681);
OP (FG, B, C, D, A, 4, 20, 0xe7d3fbc8);
OP (FG, A, B, C, D, 9, 5, 0x21e1cde6);
OP (FG, D, A, B, C, 14, 9, 0xc33707d6);
OP (FG, C, D, A, B, 3, 14, 0xf4d50d87);
OP (FG, B, C, D, A, 8, 20, 0x455a14ed);
OP (FG, A, B, C, D, 13, 5, 0xa9e3e905);
OP (FG, D, A, B, C, 2, 9, 0xfcefa3f8);
OP (FG, C, D, A, B, 7, 14, 0x676f02d9);
OP (FG, B, C, D, A, 12, 20, 0x8d2a4c8a);
/* Round 3. */
OP (FH, A, B, C, D, 5, 4, 0xfffa3942);
OP (FH, D, A, B, C, 8, 11, 0x8771f681);
OP (FH, C, D, A, B, 11, 16, 0x6d9d6122);
OP (FH, B, C, D, A, 14, 23, 0xfde5380c);
OP (FH, A, B, C, D, 1, 4, 0xa4beea44);
OP (FH, D, A, B, C, 4, 11, 0x4bdecfa9);
OP (FH, C, D, A, B, 7, 16, 0xf6bb4b60);
OP (FH, B, C, D, A, 10, 23, 0xbebfbc70);
OP (FH, A, B, C, D, 13, 4, 0x289b7ec6);
OP (FH, D, A, B, C, 0, 11, 0xeaa127fa);
OP (FH, C, D, A, B, 3, 16, 0xd4ef3085);
OP (FH, B, C, D, A, 6, 23, 0x04881d05);
OP (FH, A, B, C, D, 9, 4, 0xd9d4d039);
OP (FH, D, A, B, C, 12, 11, 0xe6db99e5);
OP (FH, C, D, A, B, 15, 16, 0x1fa27cf8);
OP (FH, B, C, D, A, 2, 23, 0xc4ac5665);
/* Round 4. */
OP (FI, A, B, C, D, 0, 6, 0xf4292244);
OP (FI, D, A, B, C, 7, 10, 0x432aff97);
OP (FI, C, D, A, B, 14, 15, 0xab9423a7);
OP (FI, B, C, D, A, 5, 21, 0xfc93a039);
OP (FI, A, B, C, D, 12, 6, 0x655b59c3);
OP (FI, D, A, B, C, 3, 10, 0x8f0ccc92);
OP (FI, C, D, A, B, 10, 15, 0xffeff47d);
OP (FI, B, C, D, A, 1, 21, 0x85845dd1);
OP (FI, A, B, C, D, 8, 6, 0x6fa87e4f);
OP (FI, D, A, B, C, 15, 10, 0xfe2ce6e0);
OP (FI, C, D, A, B, 6, 15, 0xa3014314);
OP (FI, B, C, D, A, 13, 21, 0x4e0811a1);
OP (FI, A, B, C, D, 4, 6, 0xf7537e82);
OP (FI, D, A, B, C, 11, 10, 0xbd3af235);
OP (FI, C, D, A, B, 2, 15, 0x2ad7d2bb);
OP (FI, B, C, D, A, 9, 21, 0xeb86d391);
/* Add the starting values of the context. */
A += A_save;
B += B_save;
C += C_save;
D += D_save;
}
/* Put checksum in context given as argument. */
ctx->A = A;
ctx->B = B;
ctx->C = C;
ctx->D = D;
}

162
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/* -*- c-basic-offset: 2; indent-tabs-mode: nil -*- */
/* md5.h - Declaration of functions and data types used for MD5 sum
computing library functions.
Copyright (C) 1995, 1996, 1999 Free Software Foundation, Inc.
NOTE: The canonical source of this file is maintained with the GNU C
Library. Bugs can be reported to bug-glibc@prep.ai.mit.edu.
This program 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, or (at your option) any
later version.
This program 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. */
#ifndef _MD5_H
#define _MD5_H
#include <stdio.h>
#if defined HAVE_LIMITS_H || _LIBC
# include <limits.h>
#endif
/* The following contortions are an attempt to use the C preprocessor
to determine an unsigned integral type that is 32 bits wide. An
alternative approach is to use autoconf's AC_CHECK_SIZEOF macro, but
doing that would require that the configure script compile and *run*
the resulting executable. Locally running cross-compiled executables
is usually not possible. */
#ifdef _LIBC
# include <sys/types.h>
typedef u_int32_t md5_uint32;
#else
# if defined __STDC__ && __STDC__
# define UINT_MAX_32_BITS 4294967295U
# else
# define UINT_MAX_32_BITS 0xFFFFFFFF
# endif
/* If UINT_MAX isn't defined, assume it's a 32-bit type.
This should be valid for all systems GNU cares about because
that doesn't include 16-bit systems, and only modern systems
(that certainly have <limits.h>) have 64+-bit integral types. */
# ifndef UINT_MAX
# define UINT_MAX UINT_MAX_32_BITS
# endif
# if UINT_MAX == UINT_MAX_32_BITS
typedef unsigned int md5_uint32;
# else
# if USHRT_MAX == UINT_MAX_32_BITS
typedef unsigned short md5_uint32;
# else
# if ULONG_MAX == UINT_MAX_32_BITS
typedef unsigned long md5_uint32;
# else
/* The following line is intended to evoke an error.
Using #error is not portable enough. */
"Cannot determine unsigned 32-bit data type."
# endif
# endif
# endif
#endif
#undef __P
#if defined (__STDC__) && __STDC__
#define __P(x) x
#else
#define __P(x) ()
#endif
/* Structure to save state of computation between the single steps. */
struct md5_ctx
{
md5_uint32 A;
md5_uint32 B;
md5_uint32 C;
md5_uint32 D;
md5_uint32 total[2];
md5_uint32 buflen;
char buffer[128];
};
/*
* The following three functions are build up the low level used in
* the functions `md5_stream' and `md5_buffer'.
*/
/* Initialize structure containing state of computation.
(RFC 1321, 3.3: Step 3) */
extern void md5_init_ctx __P ((struct md5_ctx *ctx));
/* Starting with the result of former calls of this function (or the
initialization function update the context for the next LEN bytes
starting at BUFFER.
It is necessary that LEN is a multiple of 64!!! */
extern void md5_process_block __P ((const void *buffer, size_t len,
struct md5_ctx *ctx));
/* Starting with the result of former calls of this function (or the
initialization function update the context for the next LEN bytes
starting at BUFFER.
It is NOT required that LEN is a multiple of 64. */
extern void md5_process_bytes __P ((const void *buffer, size_t len,
struct md5_ctx *ctx));
/* Process the remaining bytes in the buffer and put result from CTX
in first 16 bytes following RESBUF. The result is always in little
endian byte order, so that a byte-wise output yields to the wanted
ASCII representation of the message digest.
IMPORTANT: On some systems it is required that RESBUF be correctly
aligned for a 32 bits value. */
extern void *md5_finish_ctx __P ((struct md5_ctx *ctx, void *resbuf));
/* Put result from CTX in first 16 bytes following RESBUF. The result is
always in little endian byte order, so that a byte-wise output yields
to the wanted ASCII representation of the message digest.
IMPORTANT: On some systems it is required that RESBUF is correctly
aligned for a 32 bits value. */
extern void *md5_read_ctx __P ((const struct md5_ctx *ctx, void *resbuf));
/* Compute MD5 message digest for bytes read from STREAM. The
resulting message digest number will be written into the 16 bytes
beginning at RESBLOCK. */
extern int md5_stream __P ((FILE *stream, void *resblock));
/* Compute MD5 message digest for LEN bytes beginning at BUFFER. The
result is always in little endian byte order, so that a byte-wise
output yields to the wanted ASCII representation of the message
digest. */
extern void *md5_buffer __P ((const char *buffer, size_t len, void *resblock));
/* The following is from gnupg-1.0.2's cipher/bithelp.h. */
/* Rotate a 32 bit integer by n bytes */
#if defined __GNUC__ && defined __i386__
static md5_uint32
rol(md5_uint32 x, int n)
{
__asm__("roll %%cl,%0"
:"=r" (x)
:"0" (x),"c" (n));
return x;
}
#else
# define rol(x,n) ( ((x) << (n)) | ((x) >> (32-(n))) )
#endif
#endif

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/* -*- c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
* Copyright (C) 2000, 2001, 2002, 2003 Håkan Hjort <d95hjort@dtek.chalmers.se>
*
* This program 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.
*
* This program 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
*/
#include "config.h"
#include <stdio.h>
#include <string.h>
#if defined(HAVE_INTTYPES_H)
#include <inttypes.h>
#elif defined(HAVE_STDINT_H)
#include <stdint.h>
#endif
#include "bswap.h"
#include "nav_types.h"
#include "nav_read.h"
#include "dvdread_internal.h"
void navRead_PCI(pci_t *pci, unsigned char *buffer) {
int i, j;
CHECK_VALUE(sizeof(pci_t) == PCI_BYTES - 1); /* -1 for substream id*/
memcpy(pci, buffer, sizeof(pci_t));
/* Endian conversions */
/* pci pci_gi */
B2N_32(pci->pci_gi.nv_pck_lbn);
B2N_16(pci->pci_gi.vobu_cat);
B2N_32(pci->pci_gi.vobu_s_ptm);
B2N_32(pci->pci_gi.vobu_e_ptm);
B2N_32(pci->pci_gi.vobu_se_e_ptm);
/* pci nsml_agli */
for(i = 0; i < 9; i++)
B2N_32(pci->nsml_agli.nsml_agl_dsta[i]);
/* pci hli hli_gi */
B2N_16(pci->hli.hl_gi.hli_ss);
B2N_32(pci->hli.hl_gi.hli_s_ptm);
B2N_32(pci->hli.hl_gi.hli_e_ptm);
B2N_32(pci->hli.hl_gi.btn_se_e_ptm);
/* pci hli btn_colit */
for(i = 0; i < 3; i++)
for(j = 0; j < 2; j++)
B2N_32(pci->hli.btn_colit.btn_coli[i][j]);
/* NOTE: I've had to change the structure from the disk layout to get
* the packing to work with Sun's Forte C compiler. */
/* pci hli btni */
for(i = 0; i < 36; i++) {
char tmp[sizeof(pci->hli.btnit[i])], swap;
memcpy(tmp, &(pci->hli.btnit[i]), sizeof(pci->hli.btnit[i]));
/* Byte 4 to 7 are 'rotated' was: ABCD EFGH IJ is: ABCG DEFH IJ */
swap = tmp[6];
tmp[6] = tmp[5];
tmp[5] = tmp[4];
tmp[4] = tmp[3];
tmp[3] = swap;
/* Then there are the two B2N_24(..) calls */
#ifndef WORDS_BIGENDIAN
swap = tmp[0];
tmp[0] = tmp[2];
tmp[2] = swap;
swap = tmp[4];
tmp[4] = tmp[6];
tmp[6] = swap;
#endif
memcpy(&(pci->hli.btnit[i]), tmp, sizeof(pci->hli.btnit[i]));
}
#ifndef NDEBUG
/* Asserts */
/* pci pci gi */
CHECK_VALUE(pci->pci_gi.zero1 == 0);
/* pci hli hli_gi */
CHECK_VALUE(pci->hli.hl_gi.zero1 == 0);
CHECK_VALUE(pci->hli.hl_gi.zero2 == 0);
CHECK_VALUE(pci->hli.hl_gi.zero3 == 0);
CHECK_VALUE(pci->hli.hl_gi.zero4 == 0);
CHECK_VALUE(pci->hli.hl_gi.zero5 == 0);
/* Are there buttons defined here? */
if((pci->hli.hl_gi.hli_ss & 0x03) != 0) {
CHECK_VALUE(pci->hli.hl_gi.btn_ns != 0);
CHECK_VALUE(pci->hli.hl_gi.btngr_ns != 0);
} else {
CHECK_VALUE((pci->hli.hl_gi.btn_ns != 0 && pci->hli.hl_gi.btngr_ns != 0)
|| (pci->hli.hl_gi.btn_ns == 0 && pci->hli.hl_gi.btngr_ns == 0));
}
/* pci hli btnit */
for(i = 0; i < pci->hli.hl_gi.btngr_ns; i++) {
for(j = 0; j < (36 / pci->hli.hl_gi.btngr_ns); j++) {
int n = (36 / pci->hli.hl_gi.btngr_ns) * i + j;
CHECK_VALUE(pci->hli.btnit[n].zero1 == 0);
CHECK_VALUE(pci->hli.btnit[n].zero2 == 0);
CHECK_VALUE(pci->hli.btnit[n].zero3 == 0);
CHECK_VALUE(pci->hli.btnit[n].zero4 == 0);
CHECK_VALUE(pci->hli.btnit[n].zero5 == 0);
CHECK_VALUE(pci->hli.btnit[n].zero6 == 0);
if (j < pci->hli.hl_gi.btn_ns) {
CHECK_VALUE(pci->hli.btnit[n].x_start <= pci->hli.btnit[n].x_end);
CHECK_VALUE(pci->hli.btnit[n].y_start <= pci->hli.btnit[n].y_end);
CHECK_VALUE(pci->hli.btnit[n].up <= pci->hli.hl_gi.btn_ns);
CHECK_VALUE(pci->hli.btnit[n].down <= pci->hli.hl_gi.btn_ns);
CHECK_VALUE(pci->hli.btnit[n].left <= pci->hli.hl_gi.btn_ns);
CHECK_VALUE(pci->hli.btnit[n].right <= pci->hli.hl_gi.btn_ns);
/*vmcmd_verify(pci->hli.btnit[n].cmd);*/
} else {
int k;
CHECK_VALUE(pci->hli.btnit[n].btn_coln == 0);
CHECK_VALUE(pci->hli.btnit[n].auto_action_mode == 0);
CHECK_VALUE(pci->hli.btnit[n].x_start == 0);
CHECK_VALUE(pci->hli.btnit[n].y_start == 0);
CHECK_VALUE(pci->hli.btnit[n].x_end == 0);
CHECK_VALUE(pci->hli.btnit[n].y_end == 0);
CHECK_VALUE(pci->hli.btnit[n].up == 0);
CHECK_VALUE(pci->hli.btnit[n].down == 0);
CHECK_VALUE(pci->hli.btnit[n].left == 0);
CHECK_VALUE(pci->hli.btnit[n].right == 0);
for (k = 0; k < 8; k++)
CHECK_VALUE(pci->hli.btnit[n].cmd.bytes[k] == 0); /*CHECK_ZERO?*/
}
}
}
#endif /* !NDEBUG */
}
void navRead_DSI(dsi_t *dsi, unsigned char *buffer) {
int i;
CHECK_VALUE(sizeof(dsi_t) == DSI_BYTES - 1); /* -1 for substream id*/
memcpy(dsi, buffer, sizeof(dsi_t));
/* Endian conversions */
/* dsi dsi gi */
B2N_32(dsi->dsi_gi.nv_pck_scr);
B2N_32(dsi->dsi_gi.nv_pck_lbn);
B2N_32(dsi->dsi_gi.vobu_ea);
B2N_32(dsi->dsi_gi.vobu_1stref_ea);
B2N_32(dsi->dsi_gi.vobu_2ndref_ea);
B2N_32(dsi->dsi_gi.vobu_3rdref_ea);
B2N_16(dsi->dsi_gi.vobu_vob_idn);
/* dsi sml pbi */
B2N_16(dsi->sml_pbi.category);
B2N_32(dsi->sml_pbi.ilvu_ea);
B2N_32(dsi->sml_pbi.ilvu_sa);
B2N_16(dsi->sml_pbi.size);
B2N_32(dsi->sml_pbi.vob_v_s_s_ptm);
B2N_32(dsi->sml_pbi.vob_v_e_e_ptm);
/* dsi sml agli */
for(i = 0; i < 9; i++) {
B2N_32(dsi->sml_agli.data[ i ].address);
B2N_16(dsi->sml_agli.data[ i ].size);
}
/* dsi vobu sri */
B2N_32(dsi->vobu_sri.next_video);
for(i = 0; i < 19; i++)
B2N_32(dsi->vobu_sri.fwda[i]);
B2N_32(dsi->vobu_sri.next_vobu);
B2N_32(dsi->vobu_sri.prev_vobu);
for(i = 0; i < 19; i++)
B2N_32(dsi->vobu_sri.bwda[i]);
B2N_32(dsi->vobu_sri.prev_video);
/* dsi synci */
for(i = 0; i < 8; i++)
B2N_16(dsi->synci.a_synca[i]);
for(i = 0; i < 32; i++)
B2N_32(dsi->synci.sp_synca[i]);
/* Asserts */
/* dsi dsi gi */
CHECK_VALUE(dsi->dsi_gi.zero1 == 0);
}

52
dvdread/nav_read.h
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/* -*- c-basic-offset: 2; indent-tabs-mode: nil -*- */
#ifndef NAV_READ_H_INCLUDED
#define NAV_READ_H_INCLUDED
/*
* Copyright (C) 2000, 2001, 2002 Håkan Hjort <d95hjort@dtek.chalmers.se>.
*
* This program 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.
*
* This program 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
*/
#include "nav_types.h"
/**
* Parsing of NAV data, PCI and DSI parts.
*/
#ifdef __cplusplus
extern "C" {
#endif
/**
* Reads the PCI packet data pointed to into th pci struct.
*
* @param pci Pointer to the PCI data structure to be filled in.
* @param bufffer Pointer to the buffer of the on disc PCI data.
*/
void navRead_PCI(pci_t *, unsigned char *);
/**
* Reads the DSI packet data pointed to into dsi struct.
*
* @param dsi Pointer to the DSI data structure to be filled in.
* @param bufffer Pointer to the buffer of the on disc DSI data.
*/
void navRead_DSI(dsi_t *, unsigned char *);
#ifdef __cplusplus
};
#endif
#endif /* NAV_READ_H_INCLUDED */

307
dvdread/nav_types.h
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@ -1,307 +0,0 @@
/* -*- c-basic-offset: 2; indent-tabs-mode: nil -*- */
#ifndef NAV_TYPES_H_INCLUDED
#define NAV_TYPES_H_INCLUDED
/*
* Copyright (C) 2000, 2001, 2002 Håkan Hjort <d95hjort@dtek.chalmers.se>
*
* The data structures in this file should represent the layout of the
* pci and dsi packets as they are stored in the stream. Information
* found by reading the source to VOBDUMP is the base for the structure
* and names of these data types.
*
* VOBDUMP: a program for examining DVD .VOB files.
* Copyright 1998, 1999 Eric Smith <eric@brouhaha.com>
*
* VOBDUMP is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation. Note that I am not
* granting permission to redistribute or modify VOBDUMP under the terms
* of any later version of the General Public License.
*
* This program is distributed in the hope that it will be useful (or at
* least amusing), 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
*/
#include "ifo_types.h"/* only dvd_time_t, vm_cmd_t and user_ops_t */
/* If it's ever removed add a uintX_t test. */
#undef ATTRIBUTE_PACKED
#undef PRAGMA_PACK_BEGIN
#undef PRAGMA_PACK_END
#if defined(__GNUC__)
#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95)
#define ATTRIBUTE_PACKED __attribute__ ((packed))
#define PRAGMA_PACK 0
#endif
#endif
#if !defined(ATTRIBUTE_PACKED)
#define ATTRIBUTE_PACKED
#define PRAGMA_PACK 1
#endif
/* The length including the substream id byte. */
#define PCI_BYTES 0x3d4
#define DSI_BYTES 0x3fa
#define PS2_PCI_SUBSTREAM_ID 0x00
#define PS2_DSI_SUBSTREAM_ID 0x01
/* Remove this */
#define DSI_START_BYTE 1031
#if PRAGMA_PACK
#pragma pack(1)
#endif
/**
* PCI General Information
*/
typedef struct {
uint32_t nv_pck_lbn; /**< sector address of this nav pack */
uint16_t vobu_cat; /**< 'category' of vobu */
uint16_t zero1; /**< reserved */
user_ops_t vobu_uop_ctl; /**< UOP of vobu */
uint32_t vobu_s_ptm; /**< start presentation time of vobu */
uint32_t vobu_e_ptm; /**< end presentation time of vobu */
uint32_t vobu_se_e_ptm; /**< end ptm of sequence end in vobu */
dvd_time_t e_eltm; /**< Cell elapsed time */
char vobu_isrc[32];
} ATTRIBUTE_PACKED pci_gi_t;
/**
* Non Seamless Angle Information
*/
typedef struct {
uint32_t nsml_agl_dsta[9]; /**< address of destination vobu in AGL_C#n */
} ATTRIBUTE_PACKED nsml_agli_t;
/**
* Highlight General Information
*
* For btngrX_dsp_ty the bits have the following meaning:
* 000b: normal 4/3 only buttons
* XX1b: wide (16/9) buttons
* X1Xb: letterbox buttons
* 1XXb: pan&scan buttons
*/
typedef struct {
uint16_t hli_ss; /**< status, only low 2 bits 0: no buttons, 1: different 2: equal 3: eual except for button cmds */
uint32_t hli_s_ptm; /**< start ptm of hli */
uint32_t hli_e_ptm; /**< end ptm of hli */
uint32_t btn_se_e_ptm; /**< end ptm of button select */
#ifdef WORDS_BIGENDIAN
unsigned int zero1 : 2; /**< reserved */
unsigned int btngr_ns : 2; /**< number of button groups 1, 2 or 3 with 36/18/12 buttons */
unsigned int zero2 : 1; /**< reserved */
unsigned int btngr1_dsp_ty : 3; /**< display type of subpic stream for button group 1 */
unsigned int zero3 : 1; /**< reserved */
unsigned int btngr2_dsp_ty : 3; /**< display type of subpic stream for button group 2 */
unsigned int zero4 : 1; /**< reserved */
unsigned int btngr3_dsp_ty : 3; /**< display type of subpic stream for button group 3 */
#else
unsigned int btngr1_dsp_ty : 3;
unsigned int zero2 : 1;
unsigned int btngr_ns : 2;
unsigned int zero1 : 2;
unsigned int btngr3_dsp_ty : 3;
unsigned int zero4 : 1;
unsigned int btngr2_dsp_ty : 3;
unsigned int zero3 : 1;
#endif
uint8_t btn_ofn; /**< button offset number range 0-255 */
uint8_t btn_ns; /**< number of valid buttons <= 36/18/12 (low 6 bits) */
uint8_t nsl_btn_ns; /**< number of buttons selectable by U_BTNNi (low 6 bits) nsl_btn_ns <= btn_ns */
uint8_t zero5; /**< reserved */
uint8_t fosl_btnn; /**< forcedly selected button (low 6 bits) */
uint8_t foac_btnn; /**< forcedly activated button (low 6 bits) */
} ATTRIBUTE_PACKED hl_gi_t;
/**
* Button Color Information Table
* Each entry beeing a 32bit word that contains the color indexs and alpha
* values to use. They are all represented by 4 bit number and stored
* like this [Ci3, Ci2, Ci1, Ci0, A3, A2, A1, A0]. The actual palette
* that the indexes reference is in the PGC.
* @TODO split the uint32_t into a struct
*/
typedef struct {
uint32_t btn_coli[3][2]; /**< [button color number-1][select:0/action:1] */
} ATTRIBUTE_PACKED btn_colit_t;
/**
* Button Information
*
* NOTE: I've had to change the structure from the disk layout to get
* the packing to work with Sun's Forte C compiler.
* The 4 and 7 bytes are 'rotated' was: ABC DEF GHIJ is: ABCG DEFH IJ
*/
typedef struct {
#ifdef WORDS_BIGENDIAN
unsigned int btn_coln : 2; /**< button color number */
unsigned int x_start : 10; /**< x start offset within the overlay */
unsigned int zero1 : 2; /**< reserved */
unsigned int x_end : 10; /**< x end offset within the overlay */
unsigned int zero3 : 2; /**< reserved */
unsigned int up : 6; /**< button index when pressing up */
unsigned int auto_action_mode : 2; /**< 0: no, 1: activated if selected */
unsigned int y_start : 10; /**< y start offset within the overlay */
unsigned int zero2 : 2; /**< reserved */
unsigned int y_end : 10; /**< y end offset within the overlay */
unsigned int zero4 : 2; /**< reserved */
unsigned int down : 6; /**< button index when pressing down */
unsigned int zero5 : 2; /**< reserved */
unsigned int left : 6; /**< button index when pressing left */
unsigned int zero6 : 2; /**< reserved */
unsigned int right : 6; /**< button index when pressing right */
#else
unsigned int x_end : 10;
unsigned int zero1 : 2;
unsigned int x_start : 10;
unsigned int btn_coln : 2;
unsigned int up : 6;
unsigned int zero3 : 2;
unsigned int y_end : 10;
unsigned int zero2 : 2;
unsigned int y_start : 10;
unsigned int auto_action_mode : 2;
unsigned int down : 6;
unsigned int zero4 : 2;
unsigned int left : 6;
unsigned int zero5 : 2;
unsigned int right : 6;
unsigned int zero6 : 2;
#endif
vm_cmd_t cmd;
} ATTRIBUTE_PACKED btni_t;
/**
* Highlight Information
*/
typedef struct {
hl_gi_t hl_gi;
btn_colit_t btn_colit;
btni_t btnit[36];
} ATTRIBUTE_PACKED hli_t;
/**
* PCI packet
*/
typedef struct {
pci_gi_t pci_gi;
nsml_agli_t nsml_agli;
hli_t hli;
uint8_t zero1[189];
} ATTRIBUTE_PACKED pci_t;
/**
* DSI General Information
*/
typedef struct {
uint32_t nv_pck_scr;
uint32_t nv_pck_lbn; /**< sector address of this nav pack */
uint32_t vobu_ea; /**< end address of this VOBU */
uint32_t vobu_1stref_ea; /**< end address of the 1st reference image */
uint32_t vobu_2ndref_ea; /**< end address of the 2nd reference image */
uint32_t vobu_3rdref_ea; /**< end address of the 3rd reference image */
uint16_t vobu_vob_idn; /**< VOB Id number that this VOBU is part of */
uint8_t zero1; /**< reserved */
uint8_t vobu_c_idn; /**< Cell Id number that this VOBU is part of */
dvd_time_t c_eltm; /**< Cell elapsed time */
} ATTRIBUTE_PACKED dsi_gi_t;
/**
* Seamless Playback Information
*/
typedef struct {
uint16_t category; /**< 'category' of seamless VOBU */
uint32_t ilvu_ea; /**< end address of interleaved Unit */
uint32_t ilvu_sa; /**< start address of next interleaved unit */
uint16_t size; /**< size of next interleaved unit */
uint32_t vob_v_s_s_ptm; /**< video start ptm in vob */
uint32_t vob_v_e_e_ptm; /**< video end ptm in vob */
struct {
uint32_t stp_ptm1;
uint32_t stp_ptm2;
uint32_t gap_len1;
uint32_t gap_len2;
} vob_a[8];
} ATTRIBUTE_PACKED sml_pbi_t;
/**
* Seamless Angle Infromation for one angle
*/
typedef struct {
uint32_t address; /**< offset to next ILVU, high bit is before/after */
uint16_t size; /**< byte size of the ILVU pointed to by address */
} ATTRIBUTE_PACKED sml_agl_data_t;
/**
* Seamless Angle Infromation
*/
typedef struct {
sml_agl_data_t data[9];
} ATTRIBUTE_PACKED sml_agli_t;
/**
* VOBU Search Information
*/
typedef struct {
uint32_t next_video; /**< Next vobu that contains video */
uint32_t fwda[19]; /**< Forwards, time */
uint32_t next_vobu;
uint32_t prev_vobu;
uint32_t bwda[19]; /**< Backwards, time */
uint32_t prev_video;
} ATTRIBUTE_PACKED vobu_sri_t;
#define SRI_END_OF_CELL 0x3fffffff
/**
* Synchronous Information
*/
typedef struct {
uint16_t a_synca[8]; /**< offset to first audio packet for this VOBU */
uint32_t sp_synca[32]; /**< offset to first subpicture packet */
} ATTRIBUTE_PACKED synci_t;
/**
* DSI packet
*/
typedef struct {
dsi_gi_t dsi_gi;
sml_pbi_t sml_pbi;
sml_agli_t sml_agli;
vobu_sri_t vobu_sri;
synci_t synci;
uint8_t zero1[471];
} ATTRIBUTE_PACKED dsi_t;
#if PRAGMA_PACK
#pragma pack()
#endif
#endif /* NAV_TYPES_H_INCLUDED */
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