mirror of
https://github.com/mpv-player/mpv
synced 2024-12-25 00:02:13 +00:00
6219ca26e0
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@10826 b3059339-0415-0410-9bf9-f77b7e298cf2
937 lines
27 KiB
C
937 lines
27 KiB
C
/*
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* Copyright (C) 2001, 2002 Billy Biggs <vektor@dumbterm.net>,
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* Håkan Hjort <d95hjort@dtek.chalmers.se>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
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*/
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#include "config.h"
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/time.h> /* For the timing of dvdcss_title crack. */
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#include <fcntl.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <errno.h>
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#include <string.h>
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#include <unistd.h>
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#include <limits.h>
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#include <dirent.h>
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#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__bsdi__)|| defined(__DARWIN__)
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#define SYS_BSD 1
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#endif
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#if defined(__sun)
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#include <sys/mnttab.h>
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#elif defined(hpux)
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#include </usr/conf/h/mnttab.h>
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#elif defined(SYS_BSD)
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#include <fstab.h>
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#elif defined(__linux__)
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#include <mntent.h>
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#endif
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#ifdef __MINGW32__
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#include <sys/timeb.h>
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static void gettimeofday(struct timeval* t,void* timezone){
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struct timeb timebuffer;
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ftime( &timebuffer );
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t->tv_sec=timebuffer.time;
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t->tv_usec=1000*timebuffer.millitm;
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}
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#endif
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#include "dvd_udf.h"
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#include "dvd_input.h"
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#include "dvd_reader.h"
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struct dvd_reader_s {
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/* Basic information. */
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int isImageFile;
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/* Hack for keeping track of the css status.
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* 0: no css, 1: perhaps (need init of keys), 2: have done init */
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int css_state;
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int css_title; /* Last title that we have called DVDinpute_title for. */
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/* Information required for an image file. */
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dvd_input_t dev;
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/* Information required for a directory path drive. */
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char *path_root;
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};
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struct dvd_file_s {
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/* Basic information. */
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dvd_reader_t *dvd;
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/* Hack for selecting the right css title. */
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int css_title;
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/* Information required for an image file. */
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uint32_t lb_start;
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uint32_t seek_pos;
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/* Information required for a directory path drive. */
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size_t title_sizes[ 9 ];
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dvd_input_t title_devs[ 9 ];
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/* Calculated at open-time, size in blocks. */
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ssize_t filesize;
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};
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/* Loop over all titles and call dvdcss_title to crack the keys. */
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static int initAllCSSKeys( dvd_reader_t *dvd )
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{
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struct timeval all_s, all_e;
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struct timeval t_s, t_e;
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char filename[ MAX_UDF_FILE_NAME_LEN ];
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uint32_t start, len;
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int title;
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fprintf( stderr, "\n" );
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fprintf( stderr, "libdvdread: Attempting to retrieve all CSS keys\n" );
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fprintf( stderr, "libdvdread: This can take a _long_ time, "
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"please be patient\n\n" );
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gettimeofday(&all_s, NULL);
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for( title = 0; title < 100; title++ ) {
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gettimeofday( &t_s, NULL );
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if( title == 0 ) {
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sprintf( filename, "/VIDEO_TS/VIDEO_TS.VOB" );
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} else {
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sprintf( filename, "/VIDEO_TS/VTS_%02d_%d.VOB", title, 0 );
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}
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start = UDFFindFile( dvd, filename, &len );
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if( start != 0 && len != 0 ) {
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/* Perform CSS key cracking for this title. */
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fprintf( stderr, "libdvdread: Get key for %s at 0x%08x\n",
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filename, start );
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if( DVDinput_title( dvd->dev, (int)start ) < 0 ) {
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fprintf( stderr, "libdvdread: Error cracking CSS key for %s (0x%08x)\n", filename, start);
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}
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gettimeofday( &t_e, NULL );
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fprintf( stderr, "libdvdread: Elapsed time %ld\n",
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(long int) t_e.tv_sec - t_s.tv_sec );
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}
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if( title == 0 ) continue;
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gettimeofday( &t_s, NULL );
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sprintf( filename, "/VIDEO_TS/VTS_%02d_%d.VOB", title, 1 );
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start = UDFFindFile( dvd, filename, &len );
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if( start == 0 || len == 0 ) break;
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/* Perform CSS key cracking for this title. */
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fprintf( stderr, "libdvdread: Get key for %s at 0x%08x\n",
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filename, start );
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if( DVDinput_title( dvd->dev, (int)start ) < 0 ) {
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fprintf( stderr, "libdvdread: Error cracking CSS key for %s (0x%08x)!!\n", filename, start);
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}
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gettimeofday( &t_e, NULL );
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fprintf( stderr, "libdvdread: Elapsed time %ld\n",
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(long int) t_e.tv_sec - t_s.tv_sec );
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}
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title--;
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fprintf( stderr, "libdvdread: Found %d VTS's\n", title );
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gettimeofday(&all_e, NULL);
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fprintf( stderr, "libdvdread: Elapsed time %ld\n",
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(long int) all_e.tv_sec - all_s.tv_sec );
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return 0;
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}
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#ifndef HAVE_MPLAYER
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#include "get_path.c"
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#else
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extern char * get_path( char * filename );
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#endif
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//extern char * dvdcss_cache_dir;
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/**
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* Open a DVD image or block device file.
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*/
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static dvd_reader_t *DVDOpenImageFile( const char *location, int have_css )
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{
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dvd_reader_t *dvd;
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dvd_input_t dev;
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/* setup cache dir is no longer needed, it's now implemented in libdvdcss.c
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if(!dvdcss_cache_dir){
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dvdcss_cache_dir=get_path( "" );
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if ( dvdcss_cache_dir ) { mkdir( dvdcss_cache_dir,493 ); free( dvdcss_cache_dir ); }
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dvdcss_cache_dir=get_path( "DVDKeys" );
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if(dvdcss_cache_dir) mkdir( dvdcss_cache_dir,493 );
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}
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*/
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/* open it */
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dev = DVDinput_open( location );
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if( !dev ) {
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fprintf( stderr, "libdvdread: Can't open %s for reading\n", location );
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return 0;
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}
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dvd = (dvd_reader_t *) malloc( sizeof( dvd_reader_t ) );
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if( !dvd ) return 0;
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dvd->isImageFile = 1;
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dvd->dev = dev;
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dvd->path_root = 0;
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if( have_css ) {
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/* Only if DVDCSS_METHOD = title, a bit if it's disc or if
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* DVDCSS_METHOD = key but region missmatch. Unfortunaly we
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* don't have that information. */
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dvd->css_state = 1; /* Need key init. */
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}
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return dvd;
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}
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static dvd_reader_t *DVDOpenPath( const char *path_root )
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{
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dvd_reader_t *dvd;
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dvd = (dvd_reader_t *) malloc( sizeof( dvd_reader_t ) );
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if( !dvd ) return 0;
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dvd->isImageFile = 0;
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dvd->dev = 0;
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dvd->path_root = strdup( path_root );
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return dvd;
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}
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#if defined(__sun)
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/* /dev/rdsk/c0t6d0s0 (link to /devices/...)
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/vol/dev/rdsk/c0t6d0/??
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/vol/rdsk/<name> */
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static char *sun_block2char( const char *path )
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{
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char *new_path;
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/* Must contain "/dsk/" */
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if( !strstr( path, "/dsk/" ) ) return (char *) strdup( path );
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/* Replace "/dsk/" with "/rdsk/" */
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new_path = malloc( strlen(path) + 2 );
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strcpy( new_path, path );
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strcpy( strstr( new_path, "/dsk/" ), "" );
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strcat( new_path, "/rdsk/" );
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strcat( new_path, strstr( path, "/dsk/" ) + strlen( "/dsk/" ) );
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return new_path;
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}
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#endif
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#if defined(SYS_BSD)
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/* FreeBSD /dev/(r)(a)cd0c (a is for atapi), recomended to _not_ use r
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OpenBSD /dev/rcd0c, it needs to be the raw device
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NetBSD /dev/rcd0[d|c|..] d for x86, c (for non x86), perhaps others
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Darwin /dev/rdisk0, it needs to be the raw device
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BSD/OS /dev/sr0c (if not mounted) or /dev/rsr0c ('c' any letter will do) */
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static char *bsd_block2char( const char *path )
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{
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char *new_path;
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/* If it doesn't start with "/dev/" or does start with "/dev/r" exit */
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if( strncmp( path, "/dev/", 5 ) || !strncmp( path, "/dev/r", 6 ) )
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return (char *) strdup( path );
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/* Replace "/dev/" with "/dev/r" */
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new_path = malloc( strlen(path) + 2 );
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strcpy( new_path, "/dev/r" );
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strcat( new_path, path + strlen( "/dev/" ) );
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return new_path;
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}
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#endif
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dvd_reader_t *DVDOpen( const char *path )
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{
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struct stat fileinfo;
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int ret, have_css;
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char *dev_name = 0;
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if( !path ) return 0;
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ret = stat( path, &fileinfo );
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if( ret < 0 ) {
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/* If we can't stat the file, give up */
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fprintf( stderr, "libdvdread: Can't stat %s\n", path );
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perror("");
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return 0;
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}
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/* Try to open libdvdcss or fall back to standard functions */
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have_css = DVDInputSetup();
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/* First check if this is a block/char device or a file*/
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if( S_ISBLK( fileinfo.st_mode ) ||
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S_ISCHR( fileinfo.st_mode ) ||
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S_ISREG( fileinfo.st_mode ) ) {
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/**
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* Block devices and regular files are assumed to be DVD-Video images.
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*/
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#if defined(__sun)
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return DVDOpenImageFile( sun_block2char( path ), have_css );
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#elif defined(SYS_BSD)
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return DVDOpenImageFile( bsd_block2char( path ), have_css );
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#else
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return DVDOpenImageFile( path, have_css );
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#endif
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} else if( S_ISDIR( fileinfo.st_mode ) ) {
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dvd_reader_t *auth_drive = 0;
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char *path_copy;
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#if defined(SYS_BSD)
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struct fstab* fe;
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#elif defined(__sun) || defined(__linux__)
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FILE *mntfile;
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#endif
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/* XXX: We should scream real loud here. */
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if( !(path_copy = strdup( path ) ) ) return 0;
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/* Resolve any symlinks and get the absolut dir name. */
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{
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char *new_path;
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int cdir = open( ".", O_RDONLY );
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if( cdir >= 0 ) {
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chdir( path_copy );
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new_path = getcwd( NULL, PATH_MAX );
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#ifndef __MINGW32__
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fchdir( cdir );
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#endif
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close( cdir );
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if( new_path ) {
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free( path_copy );
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path_copy = new_path;
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}
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}
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}
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/**
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* If we're being asked to open a directory, check if that directory
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* is the mountpoint for a DVD-ROM which we can use instead.
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*/
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if( strlen( path_copy ) > 1 ) {
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if( path_copy[ strlen( path_copy ) - 1 ] == '/' )
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path_copy[ strlen( path_copy ) - 1 ] = '\0';
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}
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if( strlen( path_copy ) > 9 ) {
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if( !strcasecmp( &(path_copy[ strlen( path_copy ) - 9 ]),
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"/video_ts" ) ) {
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path_copy[ strlen( path_copy ) - 9 ] = '\0';
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}
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}
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#if defined(SYS_BSD)
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if( ( fe = getfsfile( path_copy ) ) ) {
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dev_name = bsd_block2char( fe->fs_spec );
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fprintf( stderr,
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"libdvdread: Attempting to use device %s"
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" mounted on %s for CSS authentication\n",
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dev_name,
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fe->fs_file );
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auth_drive = DVDOpenImageFile( dev_name, have_css );
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}
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#elif defined(__sun)
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mntfile = fopen( MNTTAB, "r" );
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if( mntfile ) {
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struct mnttab mp;
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int res;
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while( ( res = getmntent( mntfile, &mp ) ) != -1 ) {
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if( res == 0 && !strcmp( mp.mnt_mountp, path_copy ) ) {
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dev_name = sun_block2char( mp.mnt_special );
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fprintf( stderr,
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"libdvdread: Attempting to use device %s"
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" mounted on %s for CSS authentication\n",
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dev_name,
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mp.mnt_mountp );
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auth_drive = DVDOpenImageFile( dev_name, have_css );
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break;
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}
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}
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fclose( mntfile );
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}
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#elif defined(__linux__)
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mntfile = fopen( MOUNTED, "r" );
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if( mntfile ) {
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struct mntent *me;
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while( ( me = getmntent( mntfile ) ) ) {
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if( !strcmp( me->mnt_dir, path_copy ) ) {
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fprintf( stderr,
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"libdvdread: Attempting to use device %s"
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" mounted on %s for CSS authentication\n",
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me->mnt_fsname,
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me->mnt_dir );
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auth_drive = DVDOpenImageFile( me->mnt_fsname, have_css );
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dev_name = strdup(me->mnt_fsname);
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break;
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}
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}
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fclose( mntfile );
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}
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#elif defined(WIN32)
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dev_name = strdup(path);
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auth_drive = DVDOpenImageFile( path, have_css );
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#endif
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if( !dev_name ) {
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fprintf( stderr, "libdvdread: Couldn't find device name.\n" );
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} else if( !auth_drive ) {
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fprintf( stderr, "libdvdread: Device %s inaccessible, "
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"CSS authentication not available.\n", dev_name );
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}
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free( dev_name );
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free( path_copy );
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/**
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* If we've opened a drive, just use that.
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*/
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if( auth_drive ) return auth_drive;
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/**
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* Otherwise, we now try to open the directory tree instead.
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*/
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return DVDOpenPath( path );
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}
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/* If it's none of the above, screw it. */
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fprintf( stderr, "libdvdread: Could not open %s\n", path );
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return 0;
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}
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void DVDClose( dvd_reader_t *dvd )
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{
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if( dvd ) {
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if( dvd->dev ) DVDinput_close( dvd->dev );
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if( dvd->path_root ) free( dvd->path_root );
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free( dvd );
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dvd = 0;
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}
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}
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/**
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* Open an unencrypted file on a DVD image file.
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*/
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static dvd_file_t *DVDOpenFileUDF( dvd_reader_t *dvd, char *filename )
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{
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uint32_t start, len;
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dvd_file_t *dvd_file;
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start = UDFFindFile( dvd, filename, &len );
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if( !start ) return 0;
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dvd_file = (dvd_file_t *) malloc( sizeof( dvd_file_t ) );
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if( !dvd_file ) return 0;
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dvd_file->dvd = dvd;
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dvd_file->lb_start = start;
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dvd_file->seek_pos = 0;
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memset( dvd_file->title_sizes, 0, sizeof( dvd_file->title_sizes ) );
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memset( dvd_file->title_devs, 0, sizeof( dvd_file->title_devs ) );
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dvd_file->filesize = len / DVD_VIDEO_LB_LEN;
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return dvd_file;
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}
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/**
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* Searches for <file> in directory <path>, ignoring case.
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* Returns 0 and full filename in <filename>.
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* or -1 on file not found.
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* or -2 on path not found.
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*/
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static int findDirFile( const char *path, const char *file, char *filename )
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{
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DIR *dir;
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struct dirent *ent;
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dir = opendir( path );
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if( !dir ) return -2;
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while( ( ent = readdir( dir ) ) != NULL ) {
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if( !strcasecmp( ent->d_name, file ) ) {
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sprintf( filename, "%s%s%s", path,
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( ( path[ strlen( path ) - 1 ] == '/' ) ? "" : "/" ),
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ent->d_name );
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return 0;
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}
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}
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return -1;
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}
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static int findDVDFile( dvd_reader_t *dvd, const char *file, char *filename )
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{
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char video_path[ PATH_MAX + 1 ];
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const char *nodirfile;
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int ret;
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/* Strip off the directory for our search */
|
|
if( !strncasecmp( "/VIDEO_TS/", file, 10 ) ) {
|
|
nodirfile = &(file[ 10 ]);
|
|
} else {
|
|
nodirfile = file;
|
|
}
|
|
|
|
ret = findDirFile( dvd->path_root, nodirfile, filename );
|
|
if( ret < 0 ) {
|
|
/* Try also with adding the path, just in case. */
|
|
sprintf( video_path, "%s/VIDEO_TS/", dvd->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->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 *dvd, char *filename )
|
|
{
|
|
char full_path[ PATH_MAX + 1 ];
|
|
dvd_file_t *dvd_file;
|
|
struct stat fileinfo;
|
|
dvd_input_t dev;
|
|
|
|
/* Get the full path of the file. */
|
|
if( !findDVDFile( dvd, filename, full_path ) ) return 0;
|
|
|
|
dev = DVDinput_open( full_path );
|
|
if( !dev ) return 0;
|
|
|
|
dvd_file = (dvd_file_t *) malloc( sizeof( dvd_file_t ) );
|
|
if( !dvd_file ) return 0;
|
|
dvd_file->dvd = dvd;
|
|
dvd_file->lb_start = 0;
|
|
dvd_file->seek_pos = 0;
|
|
memset( dvd_file->title_sizes, 0, sizeof( dvd_file->title_sizes ) );
|
|
memset( dvd_file->title_devs, 0, sizeof( dvd_file->title_devs ) );
|
|
dvd_file->filesize = 0;
|
|
|
|
if( stat( full_path, &fileinfo ) < 0 ) {
|
|
fprintf( stderr, "libdvdread: Can't stat() %s.\n", filename );
|
|
free( dvd_file );
|
|
return 0;
|
|
}
|
|
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 *dvd, int title, int menu )
|
|
{
|
|
char filename[ MAX_UDF_FILE_NAME_LEN ];
|
|
uint32_t start, len;
|
|
dvd_file_t *dvd_file;
|
|
|
|
if( title == 0 ) {
|
|
sprintf( filename, "/VIDEO_TS/VIDEO_TS.VOB" );
|
|
} else {
|
|
sprintf( filename, "/VIDEO_TS/VTS_%02d_%d.VOB", title, menu ? 0 : 1 );
|
|
}
|
|
start = UDFFindFile( dvd, filename, &len );
|
|
if( start == 0 ) return 0;
|
|
|
|
dvd_file = (dvd_file_t *) malloc( sizeof( dvd_file_t ) );
|
|
if( !dvd_file ) return 0;
|
|
dvd_file->dvd = dvd;
|
|
/*Hack*/ dvd_file->css_title = title << 1 | menu;
|
|
dvd_file->lb_start = start;
|
|
dvd_file->seek_pos = 0;
|
|
memset( dvd_file->title_sizes, 0, sizeof( dvd_file->title_sizes ) );
|
|
memset( dvd_file->title_devs, 0, sizeof( dvd_file->title_devs ) );
|
|
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( dvd, filename, &len ) ) break;
|
|
dvd_file->filesize += len / DVD_VIDEO_LB_LEN;
|
|
}
|
|
}
|
|
|
|
if( dvd->css_state == 1 /* Need key init */ ) {
|
|
// initAllCSSKeys( dvd );
|
|
// dvd->css_state = 2;
|
|
}
|
|
/*
|
|
if( DVDinput_seek( dvd_file->dvd->dev,
|
|
(int)start, DVDINPUT_SEEK_KEY ) < 0 ) {
|
|
fprintf( stderr, "libdvdread: Error cracking CSS key for %s\n",
|
|
filename );
|
|
}
|
|
*/
|
|
|
|
return dvd_file;
|
|
}
|
|
|
|
static dvd_file_t *DVDOpenVOBPath( dvd_reader_t *dvd, int title, int menu )
|
|
{
|
|
char filename[ MAX_UDF_FILE_NAME_LEN ];
|
|
char full_path[ PATH_MAX + 1 ];
|
|
struct stat fileinfo;
|
|
dvd_file_t *dvd_file;
|
|
int i;
|
|
|
|
dvd_file = (dvd_file_t *) malloc( sizeof( dvd_file_t ) );
|
|
if( !dvd_file ) return 0;
|
|
dvd_file->dvd = dvd;
|
|
/*Hack*/ dvd_file->css_title = title << 1 | menu;
|
|
dvd_file->lb_start = 0;
|
|
dvd_file->seek_pos = 0;
|
|
memset( dvd_file->title_sizes, 0, sizeof( dvd_file->title_sizes ) );
|
|
memset( dvd_file->title_devs, 0, sizeof( dvd_file->title_devs ) );
|
|
dvd_file->filesize = 0;
|
|
|
|
if( menu ) {
|
|
dvd_input_t dev;
|
|
|
|
if( title == 0 ) {
|
|
sprintf( filename, "VIDEO_TS.VOB" );
|
|
} else {
|
|
sprintf( filename, "VTS_%02i_0.VOB", title );
|
|
}
|
|
if( !findDVDFile( dvd, filename, full_path ) ) {
|
|
free( dvd_file );
|
|
return 0;
|
|
}
|
|
|
|
dev = DVDinput_open( full_path );
|
|
if( dev == NULL ) {
|
|
free( dvd_file );
|
|
return 0;
|
|
}
|
|
|
|
if( stat( full_path, &fileinfo ) < 0 ) {
|
|
fprintf( stderr, "libdvdread: Can't stat() %s.\n", filename );
|
|
free( dvd_file );
|
|
return 0;
|
|
}
|
|
dvd_file->title_sizes[ 0 ] = fileinfo.st_size / DVD_VIDEO_LB_LEN;
|
|
dvd_file->title_devs[ 0 ] = dev;
|
|
DVDinput_seek( dvd_file->title_devs[0], 0, DVDINPUT_SEEK_KEY );
|
|
dvd_file->filesize = dvd_file->title_sizes[ 0 ];
|
|
|
|
} else {
|
|
for( i = 0; i < 9; ++i ) {
|
|
|
|
sprintf( filename, "VTS_%02i_%i.VOB", title, i + 1 );
|
|
if( !findDVDFile( dvd, filename, full_path ) ) {
|
|
break;
|
|
}
|
|
|
|
if( stat( full_path, &fileinfo ) < 0 ) {
|
|
fprintf( stderr, "libdvdread: Can't stat() %s.\n", filename );
|
|
break;
|
|
}
|
|
|
|
dvd_file->title_sizes[ i ] = fileinfo.st_size / DVD_VIDEO_LB_LEN;
|
|
dvd_file->title_devs[ i ] = DVDinput_open( full_path );
|
|
dvd_file->filesize += dvd_file->title_sizes[ i ];
|
|
DVDinput_seek( dvd_file->title_devs[ i ], 0, DVDINPUT_SEEK_KEY );
|
|
}
|
|
if( !dvd_file->title_devs[ 0 ] ) {
|
|
free( dvd_file );
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return dvd_file;
|
|
}
|
|
|
|
dvd_file_t *DVDOpenFile( dvd_reader_t *dvd, int titlenum,
|
|
dvd_read_domain_t domain )
|
|
{
|
|
char filename[ MAX_UDF_FILE_NAME_LEN ];
|
|
|
|
switch( domain ) {
|
|
case DVD_READ_INFO_FILE:
|
|
if( titlenum == 0 ) {
|
|
sprintf( 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 ) {
|
|
sprintf( 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 DVDOpenVOBUDF( dvd, titlenum, 1 );
|
|
} else {
|
|
return DVDOpenVOBPath( dvd, titlenum, 1 );
|
|
}
|
|
break;
|
|
case DVD_READ_TITLE_VOBS:
|
|
if( titlenum == 0 ) return 0;
|
|
if( dvd->isImageFile ) {
|
|
return DVDOpenVOBUDF( dvd, titlenum, 0 );
|
|
} else {
|
|
return DVDOpenVOBPath( dvd, titlenum, 0 );
|
|
}
|
|
break;
|
|
default:
|
|
fprintf( stderr, "libdvdread: Invalid domain for file open.\n" );
|
|
return 0;
|
|
}
|
|
|
|
if( dvd->isImageFile ) {
|
|
return DVDOpenFileUDF( dvd, filename );
|
|
} else {
|
|
return DVDOpenFilePath( dvd, filename );
|
|
}
|
|
}
|
|
|
|
void DVDCloseFile( dvd_file_t *dvd_file )
|
|
{
|
|
int i;
|
|
|
|
if( dvd_file ) {
|
|
if( dvd_file->dvd->isImageFile ) {
|
|
;
|
|
} else {
|
|
for( i = 0; i < 9; ++i ) {
|
|
if( dvd_file->title_devs[ i ] ) {
|
|
DVDinput_close( dvd_file->title_devs[i] );
|
|
}
|
|
}
|
|
}
|
|
|
|
free( dvd_file );
|
|
dvd_file = 0;
|
|
}
|
|
}
|
|
|
|
/* Internal, but used from dvd_udf.c */
|
|
int DVDReadBlocksUDFRaw( dvd_reader_t *device, uint32_t lb_number,
|
|
size_t block_count, unsigned char *data,
|
|
int encrypted )
|
|
{
|
|
int ret;
|
|
|
|
if( !device->dev ) {
|
|
fprintf( stderr, "libdvdread: Fatal error in block read.\n" );
|
|
return 0;
|
|
}
|
|
|
|
ret = DVDinput_seek( device->dev, (int) lb_number, DVDINPUT_NOFLAGS );
|
|
if( ret != (int) lb_number ) {
|
|
fprintf( stderr, "libdvdread: Can't seek to block %u\n", lb_number );
|
|
return 0;
|
|
}
|
|
|
|
return DVDinput_read( device->dev, (char *) data,
|
|
(int) block_count, encrypted );
|
|
}
|
|
|
|
/* 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( dvd_file_t *dvd_file, uint32_t offset,
|
|
size_t block_count, unsigned char *data,
|
|
int encrypted )
|
|
{
|
|
return DVDReadBlocksUDFRaw( dvd_file->dvd, 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( dvd_file_t *dvd_file, unsigned int offset,
|
|
size_t block_count, unsigned char *data,
|
|
int encrypted )
|
|
{
|
|
int i;
|
|
int ret, ret2, off;
|
|
|
|
ret = 0;
|
|
ret2 = 0;
|
|
for( i = 0; i < 9; ++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, DVDINPUT_NOFLAGS );
|
|
if( off < 0 || off != (int)offset ) {
|
|
fprintf( stderr, "libdvdread: Can't seek to block %d\n",
|
|
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, DVDINPUT_NOFLAGS );
|
|
if( off < 0 || off != (int)offset ) {
|
|
fprintf( stderr, "libdvdread: Can't seek to block %d\n",
|
|
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( !dvd_file->title_devs[ i + 1 ] ) return ret;
|
|
|
|
/* Read part 2 */
|
|
off = DVDinput_seek( dvd_file->title_devs[ i + 1 ],
|
|
0, DVDINPUT_NOFLAGS );
|
|
if( off < 0 || off != 0 ) {
|
|
fprintf( stderr, "libdvdread: Can't seek to block %d\n",
|
|
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 )
|
|
{
|
|
int ret;
|
|
|
|
/* Hack, and it will still fail for multiple opens in a threaded app ! */
|
|
if( dvd_file->dvd->css_title != dvd_file->css_title ) {
|
|
dvd_file->dvd->css_title = dvd_file->css_title;
|
|
if( dvd_file->dvd->isImageFile ) {
|
|
DVDinput_title( dvd_file->dvd->dev, (int)dvd_file->lb_start );
|
|
} else {
|
|
DVDinput_title( dvd_file->title_devs[ 0 ], (int)dvd_file->lb_start );
|
|
}
|
|
}
|
|
|
|
if( dvd_file->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;
|
|
}
|
|
|
|
int DVDFileSeek( dvd_file_t *dvd_file, int offset )
|
|
{
|
|
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 )
|
|
{
|
|
unsigned char *secbuf;
|
|
unsigned int numsec, seek_sector, seek_byte;
|
|
int ret;
|
|
|
|
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 ) + 1;
|
|
secbuf = (unsigned char *) malloc( numsec * DVD_VIDEO_LB_LEN );
|
|
if( !secbuf ) {
|
|
fprintf( stderr, "libdvdread: Can't allocate memory "
|
|
"for file read!\n" );
|
|
return 0;
|
|
}
|
|
|
|
if( dvd_file->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 );
|
|
return ret < 0 ? ret : 0;
|
|
}
|
|
|
|
memcpy( data, &(secbuf[ seek_byte ]), byte_size );
|
|
free( secbuf );
|
|
|
|
dvd_file->seek_pos += byte_size;
|
|
return byte_size;
|
|
}
|
|
|
|
ssize_t DVDFileSize( dvd_file_t *dvd_file )
|
|
{
|
|
return dvd_file->filesize;
|
|
}
|