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-rw-r--r--libdvdread-embedded/src/dvd_reader.c1690
1 files changed, 1690 insertions, 0 deletions
diff --git a/libdvdread-embedded/src/dvd_reader.c b/libdvdread-embedded/src/dvd_reader.c
new file mode 100644
index 0000000..c4d9641
--- /dev/null
+++ b/libdvdread-embedded/src/dvd_reader.c
@@ -0,0 +1,1690 @@
+/*
+ * Copyright (C) 2001-2004 Billy Biggs <vektor@dumbterm.net>,
+ * Håkan Hjort <d95hjort@dtek.chalmers.se>,
+ * Björn Englund <d4bjorn@dtek.chalmers.se>
+ *
+ * This file is part of libdvdread.
+ *
+ * libdvdread 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.
+ *
+ * libdvdread 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 libdvdread; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include <sys/types.h> /* off_t */
+#include <sys/stat.h> /* stat */
+#include <sys/time.h> /* For the timing of dvdcss_title crack. */
+#include <fcntl.h> /* open */
+#include <stdlib.h> /* free */
+#include <stdio.h> /* fprintf */
+#include <errno.h> /* errno, EIN* */
+#include <string.h> /* memcpy, strlen */
+#include <unistd.h> /* pclose */
+#include <limits.h> /* PATH_MAX */
+#include <dirent.h> /* opendir, readdir */
+#include <ctype.h> /* isalpha */
+
+#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__bsdi__) || defined(__APPLE__)
+# define SYS_BSD 1
+#endif
+
+#if defined(__sun)
+# include <sys/mnttab.h>
+#elif defined(__APPLE__)
+# include <sys/param.h>
+# include <sys/ucred.h>
+# include <sys/mount.h>
+#elif defined(SYS_BSD)
+# include <fstab.h>
+#elif defined(__linux__)
+# include <mntent.h>
+# include <paths.h>
+#endif
+
+#include "dvdread/dvd_udf.h"
+#include "dvdread/dvd_reader.h"
+#include "dvd_input.h"
+#include "dvdread_internal.h"
+#include "md5.h"
+#include "dvdread/ifo_read.h"
+
+#if defined(_WIN32)
+# include <windows.h>
+# include "msvc/contrib/win32_cs.h"
+#endif
+
+/* misc win32 helpers */
+
+#ifdef _WIN32
+# ifndef HAVE_GETTIMEOFDAY
+ /* replacement gettimeofday implementation */
+# include <sys/timeb.h>
+static inline int _private_gettimeofday( struct timeval *tv, void *tz )
+{
+ struct timeb t;
+ ftime( &t );
+ tv->tv_sec = t.time;
+ tv->tv_usec = t.millitm * 1000;
+ return 0;
+}
+# define gettimeofday(TV, TZ) _private_gettimeofday((TV), (TZ))
+# endif
+#endif /* _WIN32 */
+
+/* Compat wrapper for stat() */
+
+#if defined(_WIN32)
+/* can't re-define stat (used in both function name and struct name) */
+typedef struct _stat64 dvdstat_t;
+static inline int dvdstat(const char *path, dvdstat_t *st)
+{
+ wchar_t *wpath, *it;
+ int ret;
+
+ wpath = _utf8_to_wchar(path);
+ if (!wpath) {
+ return -1;
+ }
+
+ /* need to strip possible trailing \\ */
+ for (it = wpath; *it; it++)
+ if ((*it == '\\' || *it == '/') && *(it+1) == 0)
+ *it = 0;
+
+ ret = _wstat64(wpath, st);
+ free(wpath);
+ return ret;
+}
+#else
+typedef struct stat dvdstat_t;
+static inline int dvdstat(const char *file, dvdstat_t *st) {
+ return stat(file, st);
+}
+#endif
+
+#if defined(_WIN32)
+/* UTF-8 aware version of opendir()/readdir() */
+
+#include <io.h>
+
+typedef struct {
+ intptr_t handle;
+ struct _wfinddata_t went;
+ struct dirent ent;
+} win32_dir_t;
+
+win32_dir_t *win32_opendir(const char *path)
+{
+ char *filespec;
+ wchar_t *wfilespec;
+ win32_dir_t *d;
+
+ d = calloc(1, sizeof(*d));
+ if (!d)
+ return NULL;
+
+ filespec = malloc(strlen(path) + 3);
+ if (!filespec) {
+ goto fail;
+ }
+ sprintf(filespec, "%s\\*", path);
+
+ wfilespec = _utf8_to_wchar(filespec);
+ free(filespec);
+ if (!wfilespec) {
+ goto fail;
+ }
+
+ d->handle = _wfindfirst(wfilespec, &d->went);
+ free(wfilespec);
+ if (d->handle != -1) {
+ return d;
+ }
+
+ fail:
+ free(d);
+ return NULL;
+}
+
+static struct dirent *win32_readdir(win32_dir_t *dir)
+{
+ if (dir->went.name[0]) {
+ if (!WideCharToMultiByte(CP_UTF8, 0, dir->went.name, -1, dir->ent.d_name, sizeof(dir->ent.d_name), NULL, NULL))
+ dir->ent.d_name[0] = 0; /* allow reading next */
+ dir->went.name[0] = 0;
+ _wfindnext(dir->handle, &dir->went);
+ return &dir->ent;
+ }
+
+ return NULL;
+}
+
+static void win32_closedir(win32_dir_t *dir)
+{
+ _findclose(dir->handle);
+ free(dir);
+}
+
+#define DIR win32_dir_t
+#define opendir win32_opendir
+#define readdir win32_readdir
+#define closedir win32_closedir
+
+#endif /* _WIN32 */
+
+#define DEFAULT_UDF_CACHE_LEVEL 1
+
+struct dvd_reader_device_s {
+ /* Basic information. */
+ int isImageFile;
+
+ /* Hack for keeping track of the css status.
+ * 0: no css, 1: perhaps (need init of keys), 2: have done init */
+ int css_state;
+ int css_title; /* Last title that we have called dvdinpute_title for. */
+
+ /* Information required for an image file. */
+ dvd_input_t dev;
+
+ /* Information required for a directory path drive. */
+ char *path_root;
+
+ /* Filesystem cache */
+ int udfcache_level; /* 0 - turned off, 1 - on */
+ void *udfcache;
+};
+
+#define TITLES_MAX 9
+
+struct dvd_file_s {
+ /* Basic information. */
+ dvd_reader_t *ctx;
+
+ /* Hack for selecting the right css title. */
+ int css_title;
+
+ /* Information required for an image file. */
+ uint32_t lb_start;
+ uint32_t seek_pos;
+
+ /* Information required for a directory path drive. */
+ size_t title_sizes[ TITLES_MAX ];
+ dvd_input_t title_devs[ TITLES_MAX ];
+
+ /* Calculated at open-time, size in blocks. */
+ ssize_t filesize;
+
+ /* Cache of the dvd_file. If not NULL, the cache corresponds to the whole
+ * dvd_file. Used only for IFO and BUP. */
+ unsigned char *cache;
+};
+
+/**
+ * Set the level of caching on udf
+ * level = 0 (no caching)
+ * level = 1 (caching filesystem info)
+ */
+int DVDUDFCacheLevel(dvd_reader_t *reader, int level)
+{
+ dvd_reader_device_t *dev = reader->rd;
+
+ if(level > 0) {
+ level = 1;
+ } else if(level < 0) {
+ return dev->udfcache_level;
+ }
+
+ dev->udfcache_level = level;
+
+ return level;
+}
+
+void *GetUDFCacheHandle(dvd_reader_t *reader)
+{
+ dvd_reader_device_t *dev = reader->rd;
+
+ return dev->udfcache;
+}
+
+void SetUDFCacheHandle(dvd_reader_t *reader, void *cache)
+{
+ dvd_reader_device_t *dev = reader->rd;
+
+ dev->udfcache = cache;
+}
+
+
+
+/* Loop over all titles and call dvdcss_title to crack the keys. */
+static int initAllCSSKeys( dvd_reader_t *ctx )
+{
+ dvd_reader_device_t *dvd = ctx->rd;
+ struct timeval all_s, all_e;
+ struct timeval t_s, t_e;
+ char filename[ MAX_UDF_FILE_NAME_LEN ];
+ uint32_t start, len;
+ int title;
+
+ const char *nokeys_str = getenv("DVDREAD_NOKEYS");
+ if(nokeys_str != NULL)
+ return 0;
+
+ Log2(ctx,"Attempting to retrieve all CSS keys" );
+ Log2(ctx,"This can take a _long_ time, please be patient" );
+ gettimeofday(&all_s, NULL);
+
+ for( title = 0; title < 100; title++ ) {
+ gettimeofday( &t_s, NULL );
+ if( title == 0 ) {
+ strcpy( filename, "/VIDEO_TS/VIDEO_TS.VOB" );
+ } else {
+ sprintf( filename, "/VIDEO_TS/VTS_%02d_%d.VOB", title, 0 );
+ }
+ start = UDFFindFile( ctx, filename, &len );
+ if( start != 0 && len != 0 ) {
+ /* Perform CSS key cracking for this title. */
+ Log3(ctx,"Get key for %s at 0x%08x",filename, start );
+ if( dvdinput_title( dvd->dev, (int)start ) < 0 ) {
+ Log1(ctx,"Error cracking CSS key for %s (0x%08x)", filename, start);
+ }
+ gettimeofday( &t_e, NULL );
+ Log3(ctx,"Elapsed time %ld", (long int) t_e.tv_sec - t_s.tv_sec );
+ }
+
+ if( title == 0 ) continue;
+
+ gettimeofday( &t_s, NULL );
+ sprintf( filename, "/VIDEO_TS/VTS_%02d_%d.VOB", title, 1 );
+ start = UDFFindFile( ctx, filename, &len );
+ if( start == 0 || len == 0 ) break;
+
+ /* Perform CSS key cracking for this title. */
+ Log3(ctx,"Get key for %s at 0x%08x",filename, start );
+ if( dvdinput_title( dvd->dev, (int)start ) < 0 ) {
+ Log1(ctx,"Error cracking CSS key for %s (0x%08x)", filename, start);
+ }
+ gettimeofday( &t_e, NULL );
+ Log3(ctx,"Elapsed time %ld", (long int) t_e.tv_sec - t_s.tv_sec );
+ }
+ title--;
+
+ Log3(ctx,"Found %d VTS's", title );
+ gettimeofday(&all_e, NULL);
+ Log3(ctx,"Elapsed time %ld", (long int) all_e.tv_sec - all_s.tv_sec );
+
+ return 0;
+}
+
+
+
+/**
+ * Open a DVD image or block device file or use stream_cb functions.
+ */
+static dvd_reader_device_t *DVDOpenImageFile( dvd_reader_t *ctx,
+ const char *location,
+ dvd_reader_stream_cb *stream_cb,
+ int have_css )
+{
+ dvd_reader_device_t *dvd;
+ dvd_input_t dev;
+
+ dev = dvdinput_open( ctx->priv, &ctx->logcb, location, stream_cb );
+ if( !dev ) {
+ Log0(ctx,"Can't open %s for reading", location );
+ return NULL;
+ }
+
+ dvd = calloc( 1, sizeof( dvd_reader_device_t ) );
+ if( !dvd ) {
+ dvdinput_close(dev);
+ return NULL;
+ }
+ dvd->isImageFile = 1;
+ dvd->dev = dev;
+
+ dvd->udfcache_level = DEFAULT_UDF_CACHE_LEVEL;
+
+ if( have_css ) {
+ /* Only if DVDCSS_METHOD = title, a bit if it's disc or if
+ * DVDCSS_METHOD = key but region mismatch. Unfortunately we
+ * don't have that information. */
+
+ dvd->css_state = 1; /* Need key init. */
+ }
+
+ return dvd;
+}
+
+static dvd_reader_device_t *DVDOpenPath( const char *path_root )
+{
+ dvd_reader_device_t *dvd;
+
+ dvd = calloc( 1, sizeof( dvd_reader_device_t ) );
+ if( !dvd ) return NULL;
+ dvd->path_root = strdup( path_root );
+ if(!dvd->path_root) {
+ free(dvd);
+ return NULL;
+ }
+ dvd->udfcache_level = DEFAULT_UDF_CACHE_LEVEL;
+
+ return dvd;
+}
+
+#if defined(__sun)
+/* /dev/rdsk/c0t6d0s0 (link to /devices/...)
+ /vol/dev/rdsk/c0t6d0/??
+ /vol/rdsk/<name> */
+static char *sun_block2char( const char *path )
+{
+ char *new_path;
+
+ /* Must contain "/dsk/" */
+ if( !strstr( path, "/dsk/" ) ) return (char *) strdup( path );
+
+ /* Replace "/dsk/" with "/rdsk/" */
+ new_path = malloc( strlen(path) + 2 );
+ if(!new_path) return NULL;
+ strcpy( new_path, path );
+ strcpy( strstr( new_path, "/dsk/" ), "" );
+ strcat( new_path, "/rdsk/" );
+ strcat( new_path, strstr( path, "/dsk/" ) + strlen( "/dsk/" ) );
+
+ return new_path;
+}
+#endif
+
+#if defined(SYS_BSD)
+/* FreeBSD /dev/(r)(a)cd0c (a is for atapi), recommended to _not_ use r
+ update: FreeBSD and DragonFly no longer uses the prefix so don't add it.
+ OpenBSD /dev/rcd0c, it needs to be the raw device
+ NetBSD /dev/rcd0[d|c|..] d for x86, c (for non x86), perhaps others
+ Darwin /dev/rdisk0, it needs to be the raw device
+ BSD/OS /dev/sr0c (if not mounted) or /dev/rsr0c ('c' any letter will do)
+ returns a string allocated with strdup. It should be freed when no longer
+ used. */
+static char *bsd_block2char( const char *path )
+{
+#if defined(__FreeBSD__) || defined(__DragonFly__)
+ return (char *) strdup( path );
+#else
+ char *new_path;
+
+ /* If it doesn't start with "/dev/" or does start with "/dev/r" exit */
+ if( strncmp( path, "/dev/", 5 ) || !strncmp( path, "/dev/r", 6 ) )
+ return (char *) strdup( path );
+
+ /* Replace "/dev/" with "/dev/r" */
+ new_path = malloc( strlen(path) + 2 );
+ if(!new_path) return NULL;
+ strcpy( new_path, "/dev/r" );
+ strcat( new_path, path + strlen( "/dev/" ) );
+
+ return new_path;
+#endif /* __FreeBSD__ || __DragonFly__ */
+}
+#endif
+
+static dvd_reader_t *DVDOpenCommon( void *priv,
+ const dvd_logger_cb *logcb,
+ const char *ppath,
+ dvd_reader_stream_cb *stream_cb )
+{
+ dvdstat_t fileinfo;
+ int ret, have_css, cdir = -1;
+ char *dev_name = NULL;
+ char *path = NULL, *new_path = NULL, *path_copy = NULL;
+ dvd_reader_t *ctx = calloc(1, sizeof(*ctx));
+ if(!ctx)
+ return NULL;
+
+ ctx->priv = priv;
+ if(logcb)
+ ctx->logcb = *logcb;
+
+#if defined(_WIN32) || defined(__OS2__)
+ int len;
+#endif
+
+ /* Try to open DVD using stream_cb functions */
+ if( priv != NULL && stream_cb != NULL )
+ {
+ have_css = dvdinput_setup( ctx->priv, &ctx->logcb );
+ ctx->rd = DVDOpenImageFile( ctx, NULL, stream_cb, have_css );
+ if(!ctx->rd)
+ {
+ free(ctx);
+ return NULL;
+ }
+ return ctx;
+ }
+
+ if( ppath == NULL )
+ goto DVDOpen_error;
+
+ path = strdup(ppath);
+ if( path == NULL )
+ goto DVDOpen_error;
+
+ /* Try to open libdvdcss or fall back to standard functions */
+ have_css = dvdinput_setup( ctx->priv, &ctx->logcb );
+
+#if defined(_WIN32) || defined(__OS2__)
+ /* Strip off the trailing \ if it is not a drive */
+ len = strlen(path);
+ if ((len > 1) &&
+ (path[len - 1] == '\\') &&
+ (path[len - 2] != ':'))
+ {
+ path[len-1] = '\0';
+ }
+#endif
+
+ ret = dvdstat( path, &fileinfo );
+
+ if( ret < 0 ) {
+
+ /* maybe "host:port" url? try opening it with acCeSS library */
+ if( strchr(path,':') ) {
+ ctx->rd = DVDOpenImageFile( ctx, path, NULL, have_css );
+ free(path);
+ if(!ctx->rd)
+ {
+ free(ctx);
+ return NULL;
+ }
+ return ctx;
+ }
+
+ /* If we can't stat the file, give up */
+ Log0(ctx, "Can't stat %s", path );
+ perror("");
+ goto DVDOpen_error;
+ }
+
+ /* First check if this is a block/char device or a file*/
+ if( S_ISBLK( fileinfo.st_mode ) ||
+ S_ISCHR( fileinfo.st_mode ) ||
+ S_ISREG( fileinfo.st_mode ) ) {
+
+ /**
+ * Block devices and regular files are assumed to be DVD-Video images.
+ */
+#if defined(__sun)
+ dev_name = sun_block2char( path );
+#elif defined(SYS_BSD)
+ dev_name = bsd_block2char( path );
+#else
+ dev_name = strdup( path );
+#endif
+ if(!dev_name)
+ goto DVDOpen_error;
+ ctx->rd = DVDOpenImageFile( ctx, dev_name, NULL, have_css );
+ free( dev_name );
+ free(path);
+ if(!ctx->rd)
+ {
+ free(ctx);
+ return NULL;
+ }
+ return ctx;
+ } else if( S_ISDIR( fileinfo.st_mode ) ) {
+#if defined(SYS_BSD)
+ struct fstab* fe;
+#elif defined(__sun) || defined(__linux__)
+ FILE *mntfile;
+#endif
+
+ /* XXX: We should scream real loud here. */
+ if( !(path_copy = strdup( path ) ) )
+ goto DVDOpen_error;
+
+#ifndef _WIN32 /* win32 doesn't have realpath */
+ /* Also WIN32 does not have symlinks, so we don't need this bit of code. */
+
+ /* Resolve any symlinks and get the absolute dir name. */
+ {
+ new_path = realpath( path_copy, NULL );
+ if( new_path == NULL ) {
+ goto DVDOpen_error;
+ }
+ free(path_copy);
+ path_copy = new_path;
+ new_path = NULL;
+ }
+#endif
+
+ /**
+ * If we're being asked to open a directory, check if that directory
+ * is the mount point for a DVD-ROM which we can use instead.
+ */
+
+ if( strlen( path_copy ) > 1 ) {
+ if( path_copy[ strlen( path_copy ) - 1 ] == '/' ) {
+ path_copy[ strlen( path_copy ) - 1 ] = '\0';
+ }
+ }
+
+#if defined(_WIN32) || defined(__OS2__)
+ if( strlen( path_copy ) > 9 ) {
+ if( !strcasecmp( &(path_copy[ strlen( path_copy ) - 9 ]),
+ "\\video_ts"))
+ path_copy[ strlen( path_copy ) - (9-1) ] = '\0';
+ }
+#endif
+ if( strlen( path_copy ) > 9 ) {
+ if( !strcasecmp( &(path_copy[ strlen( path_copy ) - 9 ]),
+ "/video_ts" ) ) {
+ path_copy[ strlen( path_copy ) - 9 ] = '\0';
+ }
+ }
+
+ if(path_copy[0] == '\0') {
+ free( path_copy );
+ if( !(path_copy = strdup( "/" ) ) )
+ goto DVDOpen_error;
+ }
+
+#if defined(__APPLE__)
+ struct statfs s[128];
+ int r = getfsstat(NULL, 0, MNT_NOWAIT);
+ if (r > 0) {
+ if (r > 128)
+ r = 128;
+ r = getfsstat(s, r * sizeof(s[0]), MNT_NOWAIT);
+ int i;
+ for (i=0; i<r; i++) {
+ if (!strcmp(path_copy, s[i].f_mntonname)) {
+ dev_name = bsd_block2char(s[i].f_mntfromname);
+ Log3(ctx, "Attempting to use device %s"
+ " mounted on %s for CSS authentication",
+ dev_name,
+ s[i].f_mntonname);
+ ctx->rd = DVDOpenImageFile( ctx, dev_name, NULL, have_css );
+ break;
+ }
+ }
+ }
+#elif defined(SYS_BSD)
+ if( ( fe = getfsfile( path_copy ) ) ) {
+ dev_name = bsd_block2char( fe->fs_spec );
+ Log3(ctx, "Attempting to use device %s"
+ " mounted on %s for CSS authentication",
+ dev_name,
+ fe->fs_file );
+ ctx->rd = DVDOpenImageFile( ctx, dev_name, NULL, have_css );
+ }
+#elif defined(__sun)
+ mntfile = fopen( MNTTAB, "r" );
+ if( mntfile ) {
+ struct mnttab mp;
+ int res;
+
+ while( ( res = getmntent( mntfile, &mp ) ) != -1 ) {
+ if( res == 0 && !strcmp( mp.mnt_mountp, path_copy ) ) {
+ dev_name = sun_block2char( mp.mnt_special );
+ Log3(ctx, "Attempting to use device %s"
+ " mounted on %s for CSS authentication",
+ dev_name,
+ mp.mnt_mountp );
+ ctx->rd = DVDOpenImageFile( ctx, dev_name, NULL, have_css );
+ break;
+ }
+ }
+ fclose( mntfile );
+ }
+#elif defined(__linux__)
+ mntfile = fopen( _PATH_MOUNTED, "r" );
+ if( mntfile ) {
+
+#ifdef HAVE_GETMNTENT_R
+ struct mntent *me, mbuf;
+ char buf [8192];
+ while( ( me = getmntent_r( mntfile, &mbuf, buf, sizeof(buf) ) ) ) {
+#else
+ struct mntent *me;
+ while( ( me = getmntent( mntfile ) ) ) {
+#endif
+ if( !strcmp( me->mnt_dir, path_copy ) ) {
+ Log3(ctx, "Attempting to use device %s"
+ " mounted on %s for CSS authentication",
+ me->mnt_fsname,
+ me->mnt_dir );
+ ctx->rd = DVDOpenImageFile( ctx, me->mnt_fsname, NULL, have_css );
+ dev_name = strdup(me->mnt_fsname);
+ break;
+ }
+ }
+ fclose( mntfile );
+ }
+#elif defined(_WIN32) || defined(__OS2__)
+#ifdef __OS2__
+ /* Use DVDOpenImageFile() only if it is a drive */
+ if(isalpha(path[0]) && path[1] == ':' &&
+ ( !path[2] ||
+ ((path[2] == '\\' || path[2] == '/') && !path[3])))
+#endif
+ ctx->rd = DVDOpenImageFile( ctx, path, NULL, have_css );
+#endif
+
+#if !defined(_WIN32) && !defined(__OS2__)
+ if( !dev_name ) {
+ Log0(ctx, "Couldn't find device name." );
+ } else if( !ctx->rd ) {
+ Log0(ctx, "Device %s inaccessible, "
+ "CSS authentication not available.", dev_name );
+ }
+#else
+ if( !ctx->rd ) {
+ Log0(ctx, "Device %s inaccessible, "
+ "CSS authentication not available.", path );
+ }
+#endif
+
+ free( dev_name );
+ dev_name = NULL;
+ free( path_copy );
+ path_copy = NULL;
+
+ /**
+ * If we've opened a drive, just use that.
+ */
+ if(ctx->rd)
+ {
+ free(path);
+ return ctx;
+ }
+ /**
+ * Otherwise, we now try to open the directory tree instead.
+ */
+ ctx->rd = DVDOpenPath( path );
+ free( path );
+ if(!ctx->rd)
+ {
+ free(ctx);
+ return NULL;
+ }
+ return ctx;
+ }
+
+DVDOpen_error:
+ /* If it's none of the above, screw it. */
+ Log0(ctx, "Could not open %s", path );
+ free( path );
+ free( path_copy );
+ if ( cdir >= 0 )
+ close( cdir );
+ free( new_path );
+ return NULL;
+}
+
+dvd_reader_t *DVDOpen( const char *ppath )
+{
+ return DVDOpenCommon( NULL, NULL, ppath, NULL );
+}
+
+dvd_reader_t *DVDOpenStream( void *stream,
+ dvd_reader_stream_cb *stream_cb )
+{
+ return DVDOpenCommon( stream, NULL, NULL, stream_cb );
+}
+
+dvd_reader_t *DVDOpen2( void *priv, const dvd_logger_cb *logcb,
+ const char *ppath )
+{
+ return DVDOpenCommon( priv, logcb, ppath, NULL );
+}
+
+dvd_reader_t *DVDOpenStream2( void *priv, const dvd_logger_cb *logcb,
+ dvd_reader_stream_cb *stream_cb )
+{
+ return DVDOpenCommon( priv, logcb, NULL, stream_cb );
+}
+
+void DVDClose( dvd_reader_t *dvd )
+{
+ if( dvd ) {
+ if( dvd->rd->dev ) dvdinput_close( dvd->rd->dev );
+ if( dvd->rd->path_root ) free( dvd->rd->path_root );
+ if( dvd->rd->udfcache ) FreeUDFCache( dvd->rd->udfcache );
+ free( dvd->rd );
+ free( dvd );
+ }
+}
+
+/**
+ * Open an unencrypted file on a DVD image file.
+ */
+static dvd_file_t *DVDOpenFileUDF( dvd_reader_t *ctx, const char *filename,
+ int do_cache )
+{
+ uint32_t start, len;
+ dvd_file_t *dvd_file;
+
+ start = UDFFindFile( ctx, filename, &len );
+ if( !start ) {
+ Log0(ctx, "DVDOpenFileUDF:UDFFindFile %s failed", filename );
+ return NULL;
+ }
+
+ dvd_file = calloc( 1, sizeof( dvd_file_t ) );
+ if( !dvd_file ) {
+ Log0(ctx, "DVDOpenFileUDF:malloc failed" );
+ return NULL;
+ }
+ dvd_file->ctx = ctx;
+ dvd_file->lb_start = start;
+ dvd_file->filesize = len / DVD_VIDEO_LB_LEN;
+
+ /* Read the whole file in cache (unencrypted) if asked and if it doesn't
+ * exceed 128KB */
+ if( do_cache && len < 64 * DVD_VIDEO_LB_LEN ) {
+ int ret;
+
+ dvd_file->cache = malloc( len );
+ if( !dvd_file->cache )
+ return dvd_file;
+
+ ret = InternalUDFReadBlocksRaw( ctx, dvd_file->lb_start,
+ dvd_file->filesize, dvd_file->cache,
+ DVDINPUT_NOFLAGS );
+ if( ret != dvd_file->filesize ) {
+ free( dvd_file->cache );
+ dvd_file->cache = NULL;
+ }
+ }
+
+ return dvd_file;
+}
+
+/**
+ * Searches for <file> in directory <path>, ignoring case.
+ * Returns 0 and full filename in <filename>.
+ * or -1 on file not found.
+ * or -2 on path not found.
+ */
+static int findDirFile( const char *path, const char *file, char *filename )
+{
+ DIR *dir;
+ struct dirent *ent;
+
+ dir = opendir( path );
+ if( !dir ) return -2;
+
+ while( ( ent = readdir( dir ) ) != NULL ) {
+ if( !strcasecmp( ent->d_name, file ) ) {
+ sprintf( filename, "%s%s%s", path,
+ ( ( path[ strlen( path ) - 1 ] == '/' ) ? "" : "/" ),
+ ent->d_name );
+ closedir(dir);
+ return 0;
+ }
+ }
+ closedir(dir);
+ return -1;
+}
+
+static int findDVDFile( dvd_reader_t *dvd, const char *file, char *filename )
+{
+ const char *nodirfile;
+ int ret;
+
+ /* Strip off the directory for our search */
+ if( !strncasecmp( "/VIDEO_TS/", file, 10 ) ) {
+ nodirfile = &(file[ 10 ]);
+ } else {
+ nodirfile = file;
+ }
+
+ ret = findDirFile( dvd->rd->path_root, nodirfile, filename );
+ if( ret < 0 ) {
+ char video_path[ PATH_MAX + 1 ];
+
+ /* Try also with adding the path, just in case. */
+ sprintf( video_path, "%s/VIDEO_TS/", dvd->rd->path_root );
+ ret = findDirFile( video_path, nodirfile, filename );
+ if( ret < 0 ) {
+ /* Try with the path, but in lower case. */
+ sprintf( video_path, "%s/video_ts/", dvd->rd->path_root );
+ ret = findDirFile( video_path, nodirfile, filename );
+ if( ret < 0 ) {
+ return 0;
+ }
+ }
+ }
+
+ return 1;
+}
+
+/**
+ * Open an unencrypted file from a DVD directory tree.
+ */
+static dvd_file_t *DVDOpenFilePath( dvd_reader_t *ctx, const char *filename )
+{
+ char full_path[ PATH_MAX + 1 ];
+ dvd_file_t *dvd_file;
+ dvdstat_t fileinfo;
+ dvd_input_t dev;
+
+ /* Get the full path of the file. */
+ if( !findDVDFile( ctx, filename, full_path ) ) {
+ Log0(ctx, "DVDOpenFilePath:findDVDFile %s failed", filename );
+ return NULL;
+ }
+
+ dev = dvdinput_open( ctx->priv, &ctx->logcb, full_path, NULL );
+ if( !dev ) {
+ Log0(ctx, "DVDOpenFilePath:dvdinput_open %s failed", full_path );
+ return NULL;
+ }
+
+ dvd_file = calloc( 1, sizeof( dvd_file_t ) );
+ if( !dvd_file ) {
+ Log0(ctx, "DVDOpenFilePath:dvd_file malloc failed" );
+ dvdinput_close(dev);
+ return NULL;
+ }
+ dvd_file->ctx = ctx;
+
+ if( dvdstat( full_path, &fileinfo ) < 0 ) {
+ Log0(ctx, "Can't stat() %s.", filename );
+ free( dvd_file );
+ dvdinput_close( dev );
+ return NULL;
+ }
+ dvd_file->title_sizes[ 0 ] = fileinfo.st_size / DVD_VIDEO_LB_LEN;
+ dvd_file->title_devs[ 0 ] = dev;
+ dvd_file->filesize = dvd_file->title_sizes[ 0 ];
+
+ return dvd_file;
+}
+
+static dvd_file_t *DVDOpenVOBUDF( dvd_reader_t *ctx, int title, int menu )
+{
+ char filename[ MAX_UDF_FILE_NAME_LEN ];
+ uint32_t start, len;
+ dvd_file_t *dvd_file;
+
+ if( title == 0 ) {
+ strcpy( filename, "/VIDEO_TS/VIDEO_TS.VOB" );
+ } else {
+ sprintf( filename, "/VIDEO_TS/VTS_%02d_%d.VOB", title, menu ? 0 : 1 );
+ }
+ start = UDFFindFile( ctx, filename, &len );
+ if( start == 0 ) return NULL;
+
+ dvd_file = calloc( 1, sizeof( dvd_file_t ) );
+ if( !dvd_file ) return NULL;
+ dvd_file->ctx = ctx;
+ /*Hack*/ dvd_file->css_title = title << 1 | menu;
+ dvd_file->lb_start = start;
+ dvd_file->filesize = len / DVD_VIDEO_LB_LEN;
+
+ /* Calculate the complete file size for every file in the VOBS */
+ if( !menu ) {
+ int cur;
+
+ for( cur = 2; cur < 10; cur++ ) {
+ sprintf( filename, "/VIDEO_TS/VTS_%02d_%d.VOB", title, cur );
+ if( !UDFFindFile( ctx, filename, &len ) ) break;
+ dvd_file->filesize += len / DVD_VIDEO_LB_LEN;
+ }
+ }
+
+ if( ctx->rd->css_state == 1 /* Need key init */ ) {
+ initAllCSSKeys( ctx );
+ ctx->rd->css_state = 2;
+ }
+ /*
+ if( dvdinput_title( dvd_file->dvd->dev, (int)start ) < 0 ) {
+ Log0(ctx, "Error cracking CSS key for %s", filename );
+ }
+ */
+
+ return dvd_file;
+}
+
+static dvd_file_t *DVDOpenVOBPath( dvd_reader_t *ctx, int title, int menu )
+{
+ char filename[ MAX_UDF_FILE_NAME_LEN ];
+ char full_path[ PATH_MAX + 1 ];
+ dvdstat_t fileinfo;
+ dvd_file_t *dvd_file;
+
+ dvd_file = calloc( 1, sizeof( dvd_file_t ) );
+ if( !dvd_file ) return NULL;
+ dvd_file->ctx = ctx;
+ /*Hack*/ dvd_file->css_title = title << 1 | menu;
+
+ if( menu ) {
+ dvd_input_t dev;
+
+ if( title == 0 ) {
+ strcpy( filename, "VIDEO_TS.VOB" );
+ } else {
+ sprintf( filename, "VTS_%02i_0.VOB", title );
+ }
+ if( !findDVDFile( ctx, filename, full_path ) ) {
+ free( dvd_file );
+ return NULL;
+ }
+
+ dev = dvdinput_open( ctx->priv, &ctx->logcb, full_path, NULL );
+ if( dev == NULL ) {
+ free( dvd_file );
+ return NULL;
+ }
+
+ if( dvdstat( full_path, &fileinfo ) < 0 ) {
+ Log0(ctx, "Can't stat() %s.", filename );
+ dvdinput_close(dev);
+ free( dvd_file );
+ return NULL;
+ }
+ dvd_file->title_sizes[ 0 ] = fileinfo.st_size / DVD_VIDEO_LB_LEN;
+ dvd_file->title_devs[ 0 ] = dev;
+ dvdinput_title( dvd_file->title_devs[0], 0);
+ dvd_file->filesize = dvd_file->title_sizes[ 0 ];
+
+ } else {
+ int i;
+
+ for( i = 0; i < TITLES_MAX; ++i ) {
+
+ sprintf( filename, "VTS_%02i_%i.VOB", title, i + 1 );
+ if( !findDVDFile( ctx, filename, full_path ) ) {
+ break;
+ }
+
+ if( dvdstat( full_path, &fileinfo ) < 0 ) {
+ Log0(ctx, "Can't stat() %s.", filename );
+ break;
+ }
+
+ dvd_file->title_sizes[ i ] = fileinfo.st_size / DVD_VIDEO_LB_LEN;
+ dvd_file->title_devs[ i ] = dvdinput_open( ctx->priv, &ctx->logcb, full_path, NULL );
+ dvdinput_title( dvd_file->title_devs[ i ], 0 );
+ dvd_file->filesize += dvd_file->title_sizes[ i ];
+ }
+ if( !dvd_file->title_devs[ 0 ] ) {
+ free( dvd_file );
+ return NULL;
+ }
+ }
+
+ return dvd_file;
+}
+
+dvd_file_t *DVDOpenFile( dvd_reader_t *ctx, int titlenum,
+ dvd_read_domain_t domain )
+{
+ dvd_reader_device_t *dvd = ctx->rd;
+ char filename[ MAX_UDF_FILE_NAME_LEN ];
+ int do_cache = 0;
+
+ /* Check arguments. */
+ if( dvd == NULL || titlenum < 0 )
+ return NULL;
+
+ switch( domain ) {
+ case DVD_READ_INFO_FILE:
+ if( titlenum == 0 ) {
+ strcpy( filename, "/VIDEO_TS/VIDEO_TS.IFO" );
+ } else {
+ sprintf( filename, "/VIDEO_TS/VTS_%02i_0.IFO", titlenum );
+ }
+ do_cache = 1;
+ break;
+ case DVD_READ_INFO_BACKUP_FILE:
+ if( titlenum == 0 ) {
+ strcpy( filename, "/VIDEO_TS/VIDEO_TS.BUP" );
+ } else {
+ sprintf( filename, "/VIDEO_TS/VTS_%02i_0.BUP", titlenum );
+ }
+ do_cache = 1;
+ break;
+ case DVD_READ_MENU_VOBS:
+ if( dvd->isImageFile ) {
+ return DVDOpenVOBUDF( ctx, titlenum, 1 );
+ } else {
+ return DVDOpenVOBPath( ctx, titlenum, 1 );
+ }
+ break;
+ case DVD_READ_TITLE_VOBS:
+ if( titlenum == 0 ) return NULL;
+ if( dvd->isImageFile ) {
+ return DVDOpenVOBUDF( ctx, titlenum, 0 );
+ } else {
+ return DVDOpenVOBPath( ctx, titlenum, 0 );
+ }
+ break;
+ default:
+ Log1(ctx, "Invalid domain for file open." );
+ return NULL;
+ }
+
+ if( dvd->isImageFile ) {
+ return DVDOpenFileUDF( ctx, filename, do_cache );
+ } else {
+ return DVDOpenFilePath( ctx, filename );
+ }
+}
+
+void DVDCloseFile( dvd_file_t *dvd_file )
+{
+ dvd_reader_device_t *dvd = dvd_file->ctx->rd;
+ if( dvd_file && dvd ) {
+ if( !dvd->isImageFile ) {
+ int i;
+
+ for( i = 0; i < TITLES_MAX; ++i ) {
+ if( dvd_file->title_devs[ i ] ) {
+ dvdinput_close( dvd_file->title_devs[i] );
+ }
+ }
+ }
+
+ free( dvd_file->cache );
+ free( dvd_file );
+ dvd_file = NULL;
+ }
+}
+
+static int DVDFileStatVOBUDF( dvd_reader_t *dvd, int title,
+ int menu, dvd_stat_t *statbuf )
+{
+ char filename[ MAX_UDF_FILE_NAME_LEN ];
+ uint32_t size;
+ off_t tot_size;
+ off_t parts_size[ 9 ];
+ int nr_parts = 0;
+ int n;
+
+ if( title == 0 )
+ strcpy( filename, "/VIDEO_TS/VIDEO_TS.VOB" );
+ else
+ sprintf( filename, "/VIDEO_TS/VTS_%02d_%d.VOB", title, menu ? 0 : 1 );
+
+ if( !UDFFindFile( dvd, filename, &size ) )
+ return -1;
+
+ tot_size = size;
+ nr_parts = 1;
+ parts_size[ 0 ] = size;
+
+ if( !menu ) {
+ int cur;
+
+ for( cur = 2; cur < 10; cur++ ) {
+ sprintf( filename, "/VIDEO_TS/VTS_%02d_%d.VOB", title, cur );
+ if( !UDFFindFile( dvd, filename, &size ) )
+ break;
+
+ parts_size[ nr_parts ] = size;
+ tot_size += size;
+ nr_parts++;
+ }
+ }
+
+ statbuf->size = tot_size;
+ statbuf->nr_parts = nr_parts;
+ for( n = 0; n < nr_parts; n++ )
+ statbuf->parts_size[ n ] = parts_size[ n ];
+
+ return 0;
+}
+
+
+static int DVDFileStatVOBPath( dvd_reader_t *dvd, int title,
+ int menu, dvd_stat_t *statbuf )
+{
+ char filename[ MAX_UDF_FILE_NAME_LEN ];
+ char full_path[ PATH_MAX + 1 ];
+ dvdstat_t fileinfo;
+ off_t tot_size;
+ off_t parts_size[ 9 ];
+ int nr_parts = 0;
+ int n;
+
+ if( title == 0 )
+ strcpy( filename, "VIDEO_TS.VOB" );
+ else
+ sprintf( filename, "VTS_%02d_%d.VOB", title, menu ? 0 : 1 );
+
+ if( !findDVDFile( dvd, filename, full_path ) )
+ return -1;
+
+ if( dvdstat( full_path, &fileinfo ) < 0 ) {
+ Log1(dvd, "Can't stat() %s.", filename );
+ return -1;
+ }
+
+ tot_size = fileinfo.st_size;
+ nr_parts = 1;
+ parts_size[ 0 ] = fileinfo.st_size;
+
+ if( !menu ) {
+ int cur;
+ for( cur = 2; cur < 10; cur++ ) {
+ sprintf( filename, "VTS_%02d_%d.VOB", title, cur );
+ if( !findDVDFile( dvd, filename, full_path ) )
+ break;
+
+ if( dvdstat( full_path, &fileinfo ) < 0 ) {
+ Log1(dvd, "Can't stat() %s.", filename );
+ break;
+ }
+
+ parts_size[ nr_parts ] = fileinfo.st_size;
+ tot_size += parts_size[ nr_parts ];
+ nr_parts++;
+ }
+ }
+
+ statbuf->size = tot_size;
+ statbuf->nr_parts = nr_parts;
+ for( n = 0; n < nr_parts; n++ )
+ statbuf->parts_size[ n ] = parts_size[ n ];
+
+ return 0;
+}
+
+
+int DVDFileStat( dvd_reader_t *reader, int titlenum,
+ dvd_read_domain_t domain, dvd_stat_t *statbuf )
+{
+ dvd_reader_device_t *dvd = reader->rd;
+ char filename[ MAX_UDF_FILE_NAME_LEN ];
+ dvdstat_t fileinfo;
+ uint32_t size;
+
+ /* Check arguments. */
+ if( dvd == NULL || titlenum < 0 ) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ switch( domain ) {
+ case DVD_READ_INFO_FILE:
+ if( titlenum == 0 )
+ strcpy( filename, "/VIDEO_TS/VIDEO_TS.IFO" );
+ else
+ sprintf( filename, "/VIDEO_TS/VTS_%02i_0.IFO", titlenum );
+
+ break;
+ case DVD_READ_INFO_BACKUP_FILE:
+ if( titlenum == 0 )
+ strcpy( filename, "/VIDEO_TS/VIDEO_TS.BUP" );
+ else
+ sprintf( filename, "/VIDEO_TS/VTS_%02i_0.BUP", titlenum );
+
+ break;
+ case DVD_READ_MENU_VOBS:
+ if( dvd->isImageFile )
+ return DVDFileStatVOBUDF( reader, titlenum, 1, statbuf );
+ else
+ return DVDFileStatVOBPath( reader, titlenum, 1, statbuf );
+
+ break;
+ case DVD_READ_TITLE_VOBS:
+ if( titlenum == 0 )
+ return -1;
+
+ if( dvd->isImageFile )
+ return DVDFileStatVOBUDF( reader, titlenum, 0, statbuf );
+ else
+ return DVDFileStatVOBPath( reader, titlenum, 0, statbuf );
+
+ break;
+ default:
+ Log1(reader, "Invalid domain for file stat." );
+ errno = EINVAL;
+ return -1;
+ }
+
+ if( dvd->isImageFile ) {
+ if( UDFFindFile( reader, filename, &size ) ) {
+ statbuf->size = size;
+ statbuf->nr_parts = 1;
+ statbuf->parts_size[ 0 ] = size;
+ return 0;
+ }
+ } else {
+ char full_path[ PATH_MAX + 1 ];
+
+ if( findDVDFile( reader, filename, full_path ) ) {
+ if( dvdstat( full_path, &fileinfo ) < 0 )
+ Log1(reader, "Can't stat() %s.", filename );
+ else {
+ statbuf->size = fileinfo.st_size;
+ statbuf->nr_parts = 1;
+ statbuf->parts_size[ 0 ] = statbuf->size;
+ return 0;
+ }
+ }
+ }
+ return -1;
+}
+
+/* Internal, but used from dvd_udf.c */
+int InternalUDFReadBlocksRaw( const dvd_reader_t *ctx, uint32_t lb_number,
+ size_t block_count, unsigned char *data,
+ int encrypted )
+{
+ int ret;
+
+ if( !ctx->rd->dev ) {
+ Log0(ctx, "Fatal error in block read." );
+ return -1;
+ }
+
+ ret = dvdinput_seek( ctx->rd->dev, (int) lb_number );
+ if( ret != (int) lb_number ) {
+ Log1(ctx, "Can't seek to block %u", lb_number );
+ return ret;
+ }
+
+ ret = dvdinput_read( ctx->rd->dev, (char *) data,
+ (int) block_count, encrypted );
+ return ret;
+}
+
+/* This is using a single input and starting from 'dvd_file->lb_start' offset.
+ *
+ * Reads 'block_count' blocks from 'dvd_file' at block offset 'offset'
+ * into the buffer located at 'data' and if 'encrypted' is set
+ * descramble the data if it's encrypted. Returning either an
+ * negative error or the number of blocks read. */
+static int DVDReadBlocksUDF( const dvd_file_t *dvd_file, uint32_t offset,
+ size_t block_count, unsigned char *data,
+ int encrypted )
+{
+ /* If the cache is present and we don't need to decrypt, use the cache to
+ * feed the data */
+ if( dvd_file->cache && (encrypted & DVDINPUT_READ_DECRYPT) == 0 ) {
+ /* Check if we don't exceed the cache (or file) size */
+ if( block_count + offset > (size_t) dvd_file->filesize )
+ return 0;
+
+ /* Copy the cache at a specified offset into data. offset and block_count
+ * must be converted into bytes */
+ memcpy( data, dvd_file->cache + (off_t)offset * (off_t)DVD_VIDEO_LB_LEN,
+ (off_t)block_count * (off_t)DVD_VIDEO_LB_LEN );
+
+ /* return the amount of blocks copied */
+ return block_count;
+ } else {
+ /* use dvdinput access */
+ return InternalUDFReadBlocksRaw( dvd_file->ctx, dvd_file->lb_start + offset,
+ block_count, data, encrypted );
+ }
+}
+
+/* This is using possibly several inputs and starting from an offset of '0'.
+ *
+ * Reads 'block_count' blocks from 'dvd_file' at block offset 'offset'
+ * into the buffer located at 'data' and if 'encrypted' is set
+ * descramble the data if it's encrypted. Returning either an
+ * negative error or the number of blocks read. */
+static int DVDReadBlocksPath( const dvd_file_t *dvd_file, unsigned int offset,
+ size_t block_count, unsigned char *data,
+ int encrypted )
+{
+ const dvd_reader_t *ctx = dvd_file->ctx;
+ int i;
+ int ret, ret2, off;
+
+ ret = 0;
+ ret2 = 0;
+ for( i = 0; i < TITLES_MAX; ++i ) {
+ if( !dvd_file->title_sizes[ i ] ) return 0; /* Past end of file */
+
+ if( offset < dvd_file->title_sizes[ i ] ) {
+ if( ( offset + block_count ) <= dvd_file->title_sizes[ i ] ) {
+ off = dvdinput_seek( dvd_file->title_devs[ i ], (int)offset );
+ if( off < 0 || off != (int)offset ) {
+ Log1(ctx, "Can't seek to block %u", offset );
+ return off < 0 ? off : 0;
+ }
+ ret = dvdinput_read( dvd_file->title_devs[ i ], data,
+ (int)block_count, encrypted );
+ break;
+ } else {
+ size_t part1_size = dvd_file->title_sizes[ i ] - offset;
+ /* FIXME: Really needs to be a while loop.
+ * (This is only true if you try and read >1GB at a time) */
+
+ /* Read part 1 */
+ off = dvdinput_seek( dvd_file->title_devs[ i ], (int)offset );
+ if( off < 0 || off != (int)offset ) {
+ Log1(ctx, "Can't seek to block %u", offset );
+ return off < 0 ? off : 0;
+ }
+ ret = dvdinput_read( dvd_file->title_devs[ i ], data,
+ (int)part1_size, encrypted );
+ if( ret < 0 ) return ret;
+ /* FIXME: This is wrong if i is the last file in the set.
+ * also error from this read will not show in ret. */
+
+ /* Does the next part exist? If not then return now. */
+ if( i + 1 >= TITLES_MAX || !dvd_file->title_devs[ i + 1 ] )
+ return ret;
+
+ /* Read part 2 */
+ off = dvdinput_seek( dvd_file->title_devs[ i + 1 ], 0 );
+ if( off < 0 || off != 0 ) {
+ Log1(ctx, "Can't seek to block %d", 0 );
+ return off < 0 ? off : 0;
+ }
+ ret2 = dvdinput_read( dvd_file->title_devs[ i + 1 ],
+ data + ( part1_size
+ * (int64_t)DVD_VIDEO_LB_LEN ),
+ (int)(block_count - part1_size),
+ encrypted );
+ if( ret2 < 0 ) return ret2;
+ break;
+ }
+ } else {
+ offset -= dvd_file->title_sizes[ i ];
+ }
+ }
+
+ return ret + ret2;
+}
+
+/* This is broken reading more than 2Gb at a time is ssize_t is 32-bit. */
+ssize_t DVDReadBlocks( dvd_file_t *dvd_file, int offset,
+ size_t block_count, unsigned char *data )
+{
+ dvd_reader_t *ctx = dvd_file->ctx;
+ dvd_reader_device_t *dvd = ctx->rd;
+ int ret;
+
+ /* Check arguments. */
+ if( dvd_file == NULL || offset < 0 || data == NULL )
+ return -1;
+
+ /* Hack, and it will still fail for multiple opens in a threaded app ! */
+ if( dvd->css_title != dvd_file->css_title ) {
+ dvd->css_title = dvd_file->css_title;
+ if( dvd->isImageFile ) {
+ dvdinput_title( dvd->dev, (int)dvd_file->lb_start );
+ }
+ /* Here each vobu has it's own dvdcss handle, so no need to update
+ else {
+ dvdinput_title( dvd_file->title_devs[ 0 ], (int)dvd_file->lb_start );
+ }*/
+ }
+
+ if( dvd->isImageFile ) {
+ ret = DVDReadBlocksUDF( dvd_file, (uint32_t)offset,
+ block_count, data, DVDINPUT_READ_DECRYPT );
+ } else {
+ ret = DVDReadBlocksPath( dvd_file, (unsigned int)offset,
+ block_count, data, DVDINPUT_READ_DECRYPT );
+ }
+
+ return (ssize_t)ret;
+}
+
+int32_t DVDFileSeek( dvd_file_t *dvd_file, int32_t offset )
+{
+ /* Check arguments. */
+ if( dvd_file == NULL || offset < 0 )
+ return -1;
+
+ if( offset > dvd_file->filesize * DVD_VIDEO_LB_LEN ) {
+ return -1;
+ }
+ dvd_file->seek_pos = (uint32_t) offset;
+ return offset;
+}
+
+int DVDFileSeekForce(dvd_file_t *dvd_file, int offset, int force_size)
+{
+ dvd_reader_t *ctx = dvd_file->ctx;
+ dvd_reader_device_t *dvd = ctx->rd;
+ /* Check arguments. */
+ if( dvd_file == NULL || offset <= 0 )
+ return -1;
+
+ if( dvd->isImageFile ) {
+ if( force_size < 0 )
+ force_size = (offset - 1) / DVD_VIDEO_LB_LEN + 1;
+ if( dvd_file->filesize < force_size ) {
+ dvd_file->filesize = force_size;
+ free(dvd_file->cache);
+ dvd_file->cache = NULL;
+ Log2(ctx, "Ignored size of file indicated in UDF.");
+ }
+ }
+
+ if( offset > dvd_file->filesize * DVD_VIDEO_LB_LEN )
+ return -1;
+
+ dvd_file->seek_pos = (uint32_t) offset;
+ return offset;
+}
+
+ssize_t DVDReadBytes( dvd_file_t *dvd_file, void *data, size_t byte_size )
+{
+ dvd_reader_t *ctx = dvd_file->ctx;
+ dvd_reader_device_t *dvd = ctx->rd;
+ unsigned char *secbuf_base, *secbuf;
+ unsigned int numsec, seek_sector, seek_byte;
+ int ret;
+
+ /* Check arguments. */
+ if( dvd_file == NULL || data == NULL || (ssize_t)byte_size < 0 )
+ return -1;
+
+ seek_sector = dvd_file->seek_pos / DVD_VIDEO_LB_LEN;
+ seek_byte = dvd_file->seek_pos % DVD_VIDEO_LB_LEN;
+
+ numsec = ( ( seek_byte + byte_size ) / DVD_VIDEO_LB_LEN ) +
+ ( ( ( seek_byte + byte_size ) % DVD_VIDEO_LB_LEN ) ? 1 : 0 );
+
+ secbuf_base = malloc( numsec * DVD_VIDEO_LB_LEN + 2048 );
+ if( !secbuf_base ) {
+ Log0(ctx, "Can't allocate memory for file read" );
+ return 0;
+ }
+ secbuf = (unsigned char *)(((uintptr_t)secbuf_base & ~((uintptr_t)2047)) + 2048);
+
+ if( dvd->isImageFile ) {
+ ret = DVDReadBlocksUDF( dvd_file, (uint32_t) seek_sector,
+ (size_t) numsec, secbuf, DVDINPUT_NOFLAGS );
+ } else {
+ ret = DVDReadBlocksPath( dvd_file, seek_sector,
+ (size_t) numsec, secbuf, DVDINPUT_NOFLAGS );
+ }
+
+ if( ret != (int) numsec ) {
+ free( secbuf_base );
+ return ret < 0 ? ret : 0;
+ }
+
+ memcpy( data, &(secbuf[ seek_byte ]), byte_size );
+ free( secbuf_base );
+
+ DVDFileSeekForce(dvd_file, dvd_file->seek_pos + byte_size, -1);
+ return byte_size;
+}
+
+ssize_t DVDFileSize( dvd_file_t *dvd_file )
+{
+ /* Check arguments. */
+ if( dvd_file == NULL )
+ return -1;
+
+ return dvd_file->filesize;
+}
+
+int DVDDiscID( dvd_reader_t *dvd, unsigned char *discid )
+{
+ struct md5_s ctx;
+ int title;
+ int title_sets;
+ int nr_of_files = 0;
+ ifo_handle_t *vmg_ifo;
+
+ /* Check arguments. */
+ if( dvd == NULL || discid == NULL )
+ return 0;
+
+ vmg_ifo = ifoOpen( dvd, 0 );
+ if( !vmg_ifo ) {
+ Log0(dvd, "DVDDiscId, failed to open VMG IFO" );
+ return -1;
+ }
+
+ title_sets = vmg_ifo->vmgi_mat->vmg_nr_of_title_sets + 1;
+ ifoClose( vmg_ifo );
+
+ if( title_sets > 10 )
+ title_sets = 10;
+
+ /* Go through the first IFO:s, in order, up until the tenth,
+ * and md5sum them, i.e VIDEO_TS.IFO and VTS_0?_0.IFO */
+ InitMD5( &ctx );
+ for( title = 0; title < title_sets; title++ ) {
+ dvd_file_t *dvd_file = DVDOpenFile( dvd, title, DVD_READ_INFO_FILE );
+ if( dvd_file != NULL ) {
+ ssize_t bytes_read;
+ ssize_t file_size = dvd_file->filesize * DVD_VIDEO_LB_LEN;
+ char *buffer_base = malloc( file_size + 2048 );
+
+ if( buffer_base == NULL ) {
+ DVDCloseFile( dvd_file );
+ Log0(dvd, "DVDDiscId, failed to allocate memory for file read" );
+ return -1;
+ }
+
+ char *buffer = (char *)(((uintptr_t)buffer_base & ~((uintptr_t)2047)) + 2048);
+
+ bytes_read = DVDReadBytes( dvd_file, buffer, file_size );
+ if( bytes_read != file_size ) {
+ Log1(dvd, "DVDDiscId read returned %zd bytes"
+ ", wanted %zd", bytes_read, file_size );
+ DVDCloseFile( dvd_file );
+ free( buffer_base );
+ return -1;
+ }
+
+ AddMD5( &ctx, buffer, file_size );
+
+ DVDCloseFile( dvd_file );
+ free( buffer_base );
+ nr_of_files++;
+ }
+ }
+ EndMD5( &ctx );
+ memcpy( discid, ctx.buf, 16 );
+ if(!nr_of_files)
+ return -1;
+
+ return 0;
+}
+
+
+int DVDISOVolumeInfo( dvd_reader_t *ctx,
+ char *volid, unsigned int volid_size,
+ unsigned char *volsetid, unsigned int volsetid_size )
+{
+ dvd_reader_device_t *dvd = ctx->rd;
+ unsigned char *buffer, *buffer_base;
+ int ret;
+
+ /* Check arguments. */
+ if( dvd == NULL )
+ return 0;
+
+ if( dvd->dev == NULL ) {
+ /* No block access, so no ISO... */
+ return -1;
+ }
+
+ buffer_base = malloc( DVD_VIDEO_LB_LEN + 2048 );
+
+ if( buffer_base == NULL ) {
+ Log0(ctx, "DVDISOVolumeInfo, failed to "
+ "allocate memory for file read" );
+ return -1;
+ }
+
+ buffer = (unsigned char *)(((uintptr_t)buffer_base & ~((uintptr_t)2047)) + 2048);
+
+ ret = InternalUDFReadBlocksRaw( ctx, 16, 1, buffer, 0 );
+ if( ret != 1 ) {
+ Log0(ctx, "DVDISOVolumeInfo, failed to "
+ "read ISO9660 Primary Volume Descriptor" );
+ free( buffer_base );
+ return -1;
+ }
+
+ if( (volid != NULL) && (volid_size > 0) ) {
+ unsigned int n;
+ for(n = 0; n < 32; n++) {
+ if(buffer[40+n] == 0x20) {
+ break;
+ }
+ }
+
+ if(volid_size > n+1) {
+ volid_size = n+1;
+ }
+
+ memcpy(volid, &buffer[40], volid_size-1);
+ volid[volid_size-1] = '\0';
+ }
+
+ if( (volsetid != NULL) && (volsetid_size > 0) ) {
+ if(volsetid_size > 128) {
+ volsetid_size = 128;
+ }
+ memcpy(volsetid, &buffer[190], volsetid_size);
+ }
+ free( buffer_base );
+ return 0;
+}
+
+
+int DVDUDFVolumeInfo( dvd_reader_t *ctx,
+ char *volid, unsigned int volid_size,
+ unsigned char *volsetid, unsigned int volsetid_size )
+{
+ int ret;
+ /* Check arguments. */
+ if( ctx == NULL || ctx->rd == NULL )
+ return -1;
+
+ if( ctx->rd->dev == NULL ) {
+ /* No block access, so no UDF VolumeSet Identifier */
+ return -1;
+ }
+
+ if( (volid != NULL) && (volid_size > 0) ) {
+ ret = UDFGetVolumeIdentifier(ctx, volid, volid_size);
+ if(!ret) {
+ return -1;
+ }
+ }
+ if( (volsetid != NULL) && (volsetid_size > 0) ) {
+ ret = UDFGetVolumeSetIdentifier(ctx, volsetid, volsetid_size);
+ if(!ret) {
+ return -1;
+ }
+ }
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-02 20:02:06 +0000