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Commit 72f00b22 authored by Stéphane Borel's avatar Stéphane Borel
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-Patch of libdvdread to do readv on regular files (dvd copied on hard drive).
Not completed, and little tested yet ; when it is completed, this patch should
be submitted to libdvdread developers.

-Patch of libdvdcss to decrypt vobs when they are not on a block device.
parent 791fb4e0
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Showing with 239 additions and 39 deletions
extras/libdvdcss/libdvdcss.c
View file @ 72f00b22
......@@ -2,7 +2,7 @@
* libdvdcss.c: DVD reading library.
*****************************************************************************
* Copyright (C) 1998-2001 VideoLAN
* $Id: libdvdcss.c,v 1.27 2002/01/14 22:06:57 stef Exp $
* $Id: libdvdcss.c,v 1.28 2002/01/15 05:22:21 stef Exp $
*
* Authors: Stphane Borel <stef@via.ecp.fr>
* Samuel Hocevar <sam@zoy.org>
......@@ -79,7 +79,8 @@ static int _dvdcss_raw_open ( dvdcss_handle, char *psz_target );
*****************************************************************************/
extern dvdcss_handle dvdcss_open ( char *psz_target )
{
int i_ret;
struct stat fileinfo;
int i_ret;
char *psz_method = getenv( "DVDCSS_METHOD" );
char *psz_verbose = getenv( "DVDCSS_VERBOSE" );
......@@ -157,18 +158,35 @@ extern dvdcss_handle dvdcss_open ( char *psz_target )
return NULL;
}
i_ret = CSSTest( dvdcss );
if( i_ret < 0 )
if( stat( psz_target, &fileinfo ) < 0 )
{
_dvdcss_error( dvdcss, "CSS test failed" );
/* Disable the CSS ioctls and hope that it works? */
dvdcss->b_ioctls = 0;
dvdcss->b_encrypted = 1;
_dvdcss_error( dvdcss, "dvdcss: can't stat target" );
}
if( S_ISBLK( fileinfo.st_mode ) ||
S_ISCHR( fileinfo.st_mode ) )
{
i_ret = CSSTest( dvdcss );
if( i_ret < 0 )
{
_dvdcss_error( dvdcss, "CSS test failed" );
/* Disable the CSS ioctls and hope that it works? */
dvdcss->b_ioctls = 0;
dvdcss->b_encrypted = 1;
}
else
{
dvdcss->b_ioctls = 1;
dvdcss->b_encrypted = i_ret;
}
}
else
{
dvdcss->b_ioctls = 1;
dvdcss->b_encrypted = i_ret;
_dvdcss_debug( dvdcss, "dvdcss: file mode, using title method" );
dvdcss->i_method = DVDCSS_METHOD_TITLE;
dvdcss->b_ioctls = 0;
dvdcss->b_encrypted = 1;
memset( &dvdcss->css.disc, 0, sizeof(dvdcss->css.disc) );
}
/* If disc is CSS protected and the ioctls work, authenticate the drive */
......@@ -182,10 +200,10 @@ extern dvdcss_handle dvdcss_open ( char *psz_target )
free( dvdcss );
return NULL;
}
memset( dvdcss->css.p_unenc_key, 0, KEY_SIZE );
}
memset( dvdcss->css.p_unenc_key, 0, KEY_SIZE );
#ifndef WIN32
if( psz_raw_device != NULL )
{
......@@ -211,7 +229,8 @@ extern int dvdcss_seek ( dvdcss_handle dvdcss, int i_blocks, int i_flags )
{
/* title cracking method is too slow to be used at each seek */
if( ( ( i_flags & DVDCSS_SEEK_MPEG )
&& ( dvdcss->i_method != DVDCSS_METHOD_TITLE ) ) )
&& ( dvdcss->i_method != DVDCSS_METHOD_TITLE ) )
&& dvdcss->b_encrypted )
{
int i_ret;
......
extras/libdvdread/dvdread.c
View file @ 72f00b22
......@@ -3,7 +3,7 @@
* (hard-linked) and adds a readv call function to tha API.
*****************************************************************************
* Copyright (C) 2001 Billy Biggs <vektor@dumbterm.net>.
* $Id: dvdread.c,v 1.2 2001/11/26 22:28:05 fgp Exp $
* $Id: dvdread.c,v 1.3 2002/01/15 05:22:21 stef Exp $
*
* Author: Billy Biggs <vektor@dumbterm.net>
* Stphane Borel <stef@via.ecp.fr>
......@@ -33,18 +33,13 @@
#include <string.h>
#include <unistd.h>
#include <limits.h>
#include <dlfcn.h>
#include <dirent.h>
#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__bsdi__)
#define SYS_BSD 1
#endif
#ifdef SYS_DARWIN
#define off64_t off_t
#define stat64 stat
#define lseek64 lseek
#endif
#if defined(__sun)
#include <sys/mnttab.h>
#elif defined(SYS_BSD)
......@@ -86,6 +81,7 @@ struct dvd_file_s {
uint32_t seek_pos;
/* Information required for a directory path drive. */
dvdcss_handle title_devs[9];
size_t title_sizes[ 9 ];
int title_fds[ 9 ];
......@@ -124,6 +120,7 @@ static dvd_reader_t *DVDOpenPath( const char *path_root )
{
dvd_reader_t *dvd;
fprintf(stderr, "libdvdread: opening %s as folder\n", path_root );
dvd = (dvd_reader_t *) malloc( sizeof( dvd_reader_t ) );
if( !dvd ) return 0;
dvd->isImageFile = 0;
......@@ -353,11 +350,13 @@ static dvd_file_t *DVDOpenFileUDF( dvd_reader_t *dvd, char *filename )
start = UDFFindFile( dvd, filename, &len );
if( !start ) return 0;
fprintf( stderr, "libdvdread: opening %s as image\n", filename );
dvd_file = (dvd_file_t *) malloc( sizeof( dvd_file_t ) );
if( !dvd_file ) return 0;
dvd_file->dvd = dvd;
dvd_file->lb_start = start;
dvd_file->seek_pos = 0;
memset( dvd_file->title_devs, -1, sizeof( dvd_file->title_devs ) );
memset( dvd_file->title_fds, -1, sizeof( dvd_file->title_fds ) );
dvd_file->filesize = len / DVD_VIDEO_LB_LEN;
......@@ -434,6 +433,7 @@ static dvd_file_t *DVDOpenFilePath( dvd_reader_t *dvd, char *filename )
/* Get the full path of the file. */
if( !findDVDFile( dvd, filename, full_path ) ) return 0;
fprintf( stderr, "libdvdread: opening %s as file\n", full_path );
fd = open( full_path, O_RDONLY );
if( fd < 0 ) return 0;
......@@ -443,6 +443,7 @@ static dvd_file_t *DVDOpenFilePath( dvd_reader_t *dvd, char *filename )
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, -1, sizeof( dvd_file->title_devs ) );
memset( dvd_file->title_fds, -1, sizeof( dvd_file->title_fds ) );
dvd_file->filesize = 0;
......@@ -465,6 +466,7 @@ static dvd_file_t *DVDOpenVOBUDF( dvd_reader_t *dvd,
uint32_t start, len;
dvd_file_t *dvd_file;
fprintf( stderr, "libdvdread: opening VOB as image\n" );
if( title == 0 ) {
sprintf( filename, "/VIDEO_TS/VIDEO_TS.VOB" );
} else {
......@@ -510,12 +512,14 @@ static dvd_file_t *DVDOpenVOBPath( dvd_reader_t *dvd,
dvd_file_t *dvd_file;
int i;
fprintf( stderr, "libdvdread: opening VOB as file\n" );
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, -1, sizeof( dvd_file->title_devs ) );
memset( dvd_file->title_fds, -1, sizeof( dvd_file->title_fds ) );
dvd_file->filesize = 0;
......@@ -545,6 +549,8 @@ static dvd_file_t *DVDOpenVOBPath( dvd_reader_t *dvd,
}
dvd_file->title_sizes[ 0 ] = fileinfo.st_size / DVD_VIDEO_LB_LEN;
dvd_file->title_fds[ 0 ] = fd;
dvd_file->title_devs[ 0 ] = dvdcss_open( full_path );
dvdcss_title( dvd_file->title_devs[0], 0 );
dvd_file->filesize = dvd_file->title_sizes[ 0 ];
} else {
......@@ -562,6 +568,8 @@ static dvd_file_t *DVDOpenVOBPath( dvd_reader_t *dvd,
dvd_file->title_sizes[ i ] = fileinfo.st_size / DVD_VIDEO_LB_LEN;
dvd_file->title_fds[ i ] = open( full_path, O_RDONLY );
dvd_file->title_devs[ i ] = dvdcss_open( full_path );
dvdcss_title( dvd_file->title_devs[i], 0 );
dvd_file->filesize += dvd_file->title_sizes[ i ];
}
if( !(dvd_file->title_sizes[ 0 ]) ) {
......@@ -628,7 +636,10 @@ void DVDCloseFile( dvd_file_t *dvd_file )
if( !dvd_file->dvd->isImageFile ) {
for( i = 0; i < 9; ++i ) {
if( dvd_file->title_fds[ i ] >= 0 )
{
close( dvd_file->title_fds[ i ] );
dvdcss_close( dvd_file->title_devs[i] );
}
}
}
......@@ -844,26 +855,103 @@ static int64_t DVDReadVBlocksUDF( dvd_file_t *dvd_file, uint32_t offset,
block_count, vector, DVDCSS_READ_DECRYPT );
}
static int64_t DVDReadVBlocksPath( dvd_file_t *dvd_file, size_t offset,
size_t block_count, struct iovec *vector )
{
int i;
int ret, ret2;
int off;
ret = 0;
ret2 = 0;
for( i = 0 ; i < 9 ; ++i )
{
if( !dvd_file->title_sizes[ i ] )
{
return 0;
}
if( offset < dvd_file->title_sizes[ i ] )
{
if( ( offset + block_count ) <= dvd_file->title_sizes[ i ] )
{
off = dvdcss_seek( dvd_file->title_devs[ i ],
(int)offset, 0 );
if( off != (int)offset )
{
fprintf( stderr, "libdvdread: Can't seek to block %d\n",
offset );
return 0;
}
ret = dvdcss_readv( dvd_file->title_devs[ i ], vector,
(int)block_count, DVDCSS_READ_DECRYPT );
break;
}
else
{
int 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 = dvdcss_seek( dvd_file->title_devs[ i ], offset, 0 );
if( off != offset )
{
fprintf( stderr, "libdvdread: Can't seek to block %d\n",
offset );
return 0;
}
ret = dvdcss_readv( dvd_file->title_devs[ i ], vector,
part1_size, DVDCSS_READ_DECRYPT );
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. */
/* Read part 2 */
dvdcss_seek( dvd_file->title_devs[ i + 1 ], 0, 0 );
ret2 = dvdcss_readv( dvd_file->title_devs[ i + 1 ],
vector + part1_size, (int)(block_count - part1_size),
DVDCSS_READ_DECRYPT );
if( ret2 < 0 ) return ret2;
break;
}
}
else
{
offset -= dvd_file->title_sizes[ i ];
}
}
return ( ret + ret2 ) * (int64_t) DVD_VIDEO_LB_LEN;
}
ssize_t DVDReadVBlocks( dvd_file_t *dvd_file, int offset,
size_t block_count, struct iovec * vector )
{
int64_t ret;
if( dvd_file->dvd->isImageFile ) {
ret = DVDReadVBlocksUDF( dvd_file, (uint32_t)offset,
block_count, vector );
} else {
ret = 0;//= DVDReadVBlocksPath( dvd_file, (size_t) offset,
// block_count, vector );
if( dvd_file->dvd->isImageFile )
{
ret = DVDReadVBlocksUDF( dvd_file, (uint32_t)offset,
block_count, vector );
}
if( ret <= 0 ) {
else
{
ret = DVDReadVBlocksPath( dvd_file, (size_t) offset,
block_count, vector );
}
if( ret <= 0 )
{
return (ssize_t) ret;
}
{
ssize_t sret = (ssize_t) (ret / (int64_t)DVD_VIDEO_LB_LEN );
if( sret == 0 ) {
fprintf(stderr, "libdvdread: DVDReadVBlocks got %d bytes\n", (int)ret );
if( sret == 0 )
{
fprintf(stderr, "libdvdread: DVDReadVBlocks got %d bytes\n", (int)ret );
}
return sret;
}
......
extras/libdvdread/videolan/dvdread.c
View file @ 72f00b22
......@@ -3,7 +3,7 @@
* (hard-linked) and adds a readv call function to tha API.
*****************************************************************************
* Copyright (C) 2001 Billy Biggs <vektor@dumbterm.net>.
* $Id: dvdread.c,v 1.1 2001/11/25 05:04:38 stef Exp $
* $Id: dvdread.c,v 1.2 2002/01/15 05:22:21 stef Exp $
*
* Author: Billy Biggs <vektor@dumbterm.net>
* Stphane Borel <stef@via.ecp.fr>
......@@ -81,6 +81,7 @@ struct dvd_file_s {
uint32_t seek_pos;
/* Information required for a directory path drive. */
dvdcss_handle title_devs[9];
size_t title_sizes[ 9 ];
int title_fds[ 9 ];
......@@ -119,6 +120,7 @@ static dvd_reader_t *DVDOpenPath( const char *path_root )
{
dvd_reader_t *dvd;
fprintf(stderr, "libdvdread: opening %s as folder\n", path_root );
dvd = (dvd_reader_t *) malloc( sizeof( dvd_reader_t ) );
if( !dvd ) return 0;
dvd->isImageFile = 0;
......@@ -348,11 +350,13 @@ static dvd_file_t *DVDOpenFileUDF( dvd_reader_t *dvd, char *filename )
start = UDFFindFile( dvd, filename, &len );
if( !start ) return 0;
fprintf( stderr, "libdvdread: opening %s as image\n", filename );
dvd_file = (dvd_file_t *) malloc( sizeof( dvd_file_t ) );
if( !dvd_file ) return 0;
dvd_file->dvd = dvd;
dvd_file->lb_start = start;
dvd_file->seek_pos = 0;
memset( dvd_file->title_devs, -1, sizeof( dvd_file->title_devs ) );
memset( dvd_file->title_fds, -1, sizeof( dvd_file->title_fds ) );
dvd_file->filesize = len / DVD_VIDEO_LB_LEN;
......@@ -429,6 +433,7 @@ static dvd_file_t *DVDOpenFilePath( dvd_reader_t *dvd, char *filename )
/* Get the full path of the file. */
if( !findDVDFile( dvd, filename, full_path ) ) return 0;
fprintf( stderr, "libdvdread: opening %s as file\n", full_path );
fd = open( full_path, O_RDONLY );
if( fd < 0 ) return 0;
......@@ -438,6 +443,7 @@ static dvd_file_t *DVDOpenFilePath( dvd_reader_t *dvd, char *filename )
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, -1, sizeof( dvd_file->title_devs ) );
memset( dvd_file->title_fds, -1, sizeof( dvd_file->title_fds ) );
dvd_file->filesize = 0;
......@@ -460,6 +466,7 @@ static dvd_file_t *DVDOpenVOBUDF( dvd_reader_t *dvd,
uint32_t start, len;
dvd_file_t *dvd_file;
fprintf( stderr, "libdvdread: opening VOB as image\n" );
if( title == 0 ) {
sprintf( filename, "/VIDEO_TS/VIDEO_TS.VOB" );
} else {
......@@ -505,12 +512,14 @@ static dvd_file_t *DVDOpenVOBPath( dvd_reader_t *dvd,
dvd_file_t *dvd_file;
int i;
fprintf( stderr, "libdvdread: opening VOB as file\n" );
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, -1, sizeof( dvd_file->title_devs ) );
memset( dvd_file->title_fds, -1, sizeof( dvd_file->title_fds ) );
dvd_file->filesize = 0;
......@@ -540,6 +549,8 @@ static dvd_file_t *DVDOpenVOBPath( dvd_reader_t *dvd,
}
dvd_file->title_sizes[ 0 ] = fileinfo.st_size / DVD_VIDEO_LB_LEN;
dvd_file->title_fds[ 0 ] = fd;
dvd_file->title_devs[ 0 ] = dvdcss_open( full_path );
dvdcss_title( dvd_file->title_devs[0], 0 );
dvd_file->filesize = dvd_file->title_sizes[ 0 ];
} else {
......@@ -557,6 +568,8 @@ static dvd_file_t *DVDOpenVOBPath( dvd_reader_t *dvd,
dvd_file->title_sizes[ i ] = fileinfo.st_size / DVD_VIDEO_LB_LEN;
dvd_file->title_fds[ i ] = open( full_path, O_RDONLY );
dvd_file->title_devs[ i ] = dvdcss_open( full_path );
dvdcss_title( dvd_file->title_devs[i], 0 );
dvd_file->filesize += dvd_file->title_sizes[ i ];
}
if( !(dvd_file->title_sizes[ 0 ]) ) {
......@@ -623,7 +636,10 @@ void DVDCloseFile( dvd_file_t *dvd_file )
if( !dvd_file->dvd->isImageFile ) {
for( i = 0; i < 9; ++i ) {
if( dvd_file->title_fds[ i ] >= 0 )
{
close( dvd_file->title_fds[ i ] );
dvdcss_close( dvd_file->title_devs[i] );
}
}
}
......@@ -839,26 +855,103 @@ static int64_t DVDReadVBlocksUDF( dvd_file_t *dvd_file, uint32_t offset,
block_count, vector, DVDCSS_READ_DECRYPT );
}
static int64_t DVDReadVBlocksPath( dvd_file_t *dvd_file, size_t offset,
size_t block_count, struct iovec *vector )
{
int i;
int ret, ret2;
int off;
ret = 0;
ret2 = 0;
for( i = 0 ; i < 9 ; ++i )
{
if( !dvd_file->title_sizes[ i ] )
{
return 0;
}
if( offset < dvd_file->title_sizes[ i ] )
{
if( ( offset + block_count ) <= dvd_file->title_sizes[ i ] )
{
off = dvdcss_seek( dvd_file->title_devs[ i ],
(int)offset, 0 );
if( off != (int)offset )
{
fprintf( stderr, "libdvdread: Can't seek to block %d\n",
offset );
return 0;
}
ret = dvdcss_readv( dvd_file->title_devs[ i ], vector,
(int)block_count, DVDCSS_READ_DECRYPT );
break;
}
else
{
int 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 = dvdcss_seek( dvd_file->title_devs[ i ], offset, 0 );
if( off != offset )
{
fprintf( stderr, "libdvdread: Can't seek to block %d\n",
offset );
return 0;
}
ret = dvdcss_readv( dvd_file->title_devs[ i ], vector,
part1_size, DVDCSS_READ_DECRYPT );
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. */
/* Read part 2 */
dvdcss_seek( dvd_file->title_devs[ i + 1 ], 0, 0 );
ret2 = dvdcss_readv( dvd_file->title_devs[ i + 1 ],
vector + part1_size, (int)(block_count - part1_size),
DVDCSS_READ_DECRYPT );
if( ret2 < 0 ) return ret2;
break;
}
}
else
{
offset -= dvd_file->title_sizes[ i ];
}
}
return ( ret + ret2 ) * (int64_t) DVD_VIDEO_LB_LEN;
}
ssize_t DVDReadVBlocks( dvd_file_t *dvd_file, int offset,
size_t block_count, struct iovec * vector )
{
int64_t ret;
if( dvd_file->dvd->isImageFile ) {
ret = DVDReadVBlocksUDF( dvd_file, (uint32_t)offset,
block_count, vector );
} else {
ret = 0;//= DVDReadVBlocksPath( dvd_file, (size_t) offset,
// block_count, vector );
if( dvd_file->dvd->isImageFile )
{
ret = DVDReadVBlocksUDF( dvd_file, (uint32_t)offset,
block_count, vector );
}
if( ret <= 0 ) {
else
{
ret = DVDReadVBlocksPath( dvd_file, (size_t) offset,
block_count, vector );
}
if( ret <= 0 )
{
return (ssize_t) ret;
}
{
ssize_t sret = (ssize_t) (ret / (int64_t)DVD_VIDEO_LB_LEN );
if( sret == 0 ) {
fprintf(stderr, "libdvdread: DVDReadVBlocks got %d bytes\n", (int)ret );
if( sret == 0 )
{
fprintf(stderr, "libdvdread: DVDReadVBlocks got %d bytes\n", (int)ret );
}
return sret;
}
......
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