/* 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;
/* 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_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 );
}
/* 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_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;
}
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;
dvd_file = calloc( 1, sizeof( dvd_file_t ) );
if( !dvd_file ) return NULL;
dvd_file->dvd = dvd;
/*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( dvd, filename, full_path ) ) {
free( dvd_file );
return NULL;
}
dev = dvdinput_open( full_path, NULL, NULL );
if( dev == NULL ) {
free( dvd_file );
return NULL;
}
if( mythfile_stat( full_path, &fileinfo ) < 0 ) {
fprintf( stderr, "libdvdread: Can't stat() %s.\n", 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( dvd, filename, full_path ) ) {
break;
}
if( mythfile_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, NULL, 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;
}
/* Loop over all titles and call dvdcss_title to crack the keys. */
static int initAllCSSKeys( dvd_reader_t *dvd )
{
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;
fprintf( stderr, "\n" );
fprintf( stderr, "libdvdread: Attempting to retrieve all CSS keys\n" );
fprintf( stderr, "libdvdread: This can take a _long_ time, "
"please be patient\n\n" );
gettimeofday(&all_s, NULL);
for( title = 0; title < 100; title++ ) {
gettimeofday( &t_s, NULL );
if( title == 0 ) {
sprintf( filename, "/VIDEO_TS/VIDEO_TS.VOB" );
} else {
sprintf( filename, "/VIDEO_TS/VTS_%02d_%d.VOB", title, 0 );
}
start = UDFFindFile( dvd, filename, &len );
if( start != 0 && len != 0 ) {
/* Perform CSS key cracking for this title. */
fprintf( stderr, "libdvdread: Get key for %s at 0x%08x\n",
filename, start );
if( dvdinput_title( dvd->dev, (int)start ) < 0 ) {
fprintf( stderr, "libdvdread: Error cracking CSS key for %s (0x%08x)\n", filename, start);
}
gettimeofday( &t_e, NULL );
fprintf( stderr, "libdvdread: Elapsed time %ld\n",
(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( dvd, filename, &len );
if( start == 0 || len == 0 ) break;
/* Perform CSS key cracking for this title. */
fprintf( stderr, "libdvdread: Get key for %s at 0x%08x\n",
filename, start );
if( dvdinput_title( dvd->dev, (int)start ) < 0 ) {
fprintf( stderr, "libdvdread: Error cracking CSS key for %s (0x%08x)!!\n", filename, start);
}
gettimeofday( &t_e, NULL );
fprintf( stderr, "libdvdread: Elapsed time %ld\n",
(long int) t_e.tv_sec - t_s.tv_sec );
}
title--;
fprintf( stderr, "libdvdread: Found %d VTS's\n", title );
gettimeofday(&all_e, NULL);
fprintf( stderr, "libdvdread: Elapsed time %ld\n",
(long int) all_e.tv_sec - all_s.tv_sec );
return 0;
}
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 ) {
if(dvd->verbose >= 1) {
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_title( dvd_file->title_devs[0], 0);
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 ) {
if(dvd->verbose >= 1) {
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 );
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 0;
}
}
return dvd_file;
}
