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Commit e754b097 authored by Stéphane Borel's avatar Stéphane Borel
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-solved bug with cssdescrambling. The vlc might segfault with dvd 

plugins. I will fix that soon.
-minor modification in pluginification.
parent 0935df9e
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Showing with 117 additions and 806 deletions
plugins/dvd/dvd_css.c
View file @ e754b097
...@@ -2,7 +2,7 @@ ...@@ -2,7 +2,7 @@
* dvd_css.c: Functions for DVD authentification and unscrambling * dvd_css.c: Functions for DVD authentification and unscrambling
***************************************************************************** *****************************************************************************
* Copyright (C) 1999-2001 VideoLAN * Copyright (C) 1999-2001 VideoLAN
* $Id: dvd_css.c,v 1.1 2001/02/08 04:43:27 sam Exp $ * $Id: dvd_css.c,v 1.2 2001/02/08 06:41:56 stef Exp $
* *
* Author: Stphane Borel <stef@via.ecp.fr> * Author: Stphane Borel <stef@via.ecp.fr>
* *
...@@ -1111,8 +1111,6 @@ int CSSDescrambleSector( DVD_key_t key, u8* pi_sec ) ...@@ -1111,8 +1111,6 @@ int CSSDescrambleSector( DVD_key_t key, u8* pi_sec )
*pi_sec++ = pi_css_tab1[*pi_sec] ^( i_t5 & 0xff ); *pi_sec++ = pi_css_tab1[*pi_sec] ^( i_t5 & 0xff );
i_t5 >>= 8; i_t5 >>= 8;
} }
pi_sec[0x14] &= 0x8F;
} }
return(0); return(0);
......
plugins/dvd/input_dvd.c
View file @ e754b097
/***************************************************************************** /*****************************************************************************
* input_dvd.c: DVD reading * input_dvd.c: DVD raw reading plugin.
* ---
* This plugins should handle all the known specificities of the DVD format,
* especially the 2048 bytes logical block size.
* It depends on:
* -input_netlist used to read packets
* -dvd_ifo for ifo parsing and analyse
* -dvd_css for unscrambling
* -dvd_udf to find files
***************************************************************************** *****************************************************************************
* Copyright (C) 1998-2001 VideoLAN * Copyright (C) 1998-2001 VideoLAN
* $Id: input_dvd.c,v 1.1 2001/02/08 04:43:27 sam Exp $ * $Id: input_dvd.c,v 1.2 2001/02/08 06:41:56 stef Exp $
* *
* Author: Stphane Borel <stef@via.ecp.fr> * Author: Stphane Borel <stef@via.ecp.fr>
* *
...@@ -33,19 +41,12 @@ ...@@ -33,19 +41,12 @@
#include <fcntl.h> #include <fcntl.h>
#include <sys/types.h> #include <sys/types.h>
#include <sys/uio.h>
#include <string.h> #include <string.h>
#include <errno.h> #include <errno.h>
#include <malloc.h> #include <malloc.h>
#include <sys/ioctl.h>
#ifdef HAVE_SYS_DVDIO_H
# include <sys/dvdio.h>
#endif
#ifdef LINUX_DVD
# include <linux/cdrom.h>
#endif
#include "config.h" #include "config.h"
#include "common.h" #include "common.h"
#include "threads.h" #include "threads.h"
...@@ -61,6 +62,8 @@ ...@@ -61,6 +62,8 @@
#include "input_ext-dec.h" #include "input_ext-dec.h"
#include "input.h" #include "input.h"
#include "input_netlist.h"
#include "dvd_ifo.h" #include "dvd_ifo.h"
#include "dvd_css.h" #include "dvd_css.h"
#include "input_dvd.h" #include "input_dvd.h"
...@@ -75,8 +78,7 @@ ...@@ -75,8 +78,7 @@
*****************************************************************************/ *****************************************************************************/
static int DVDProbe ( probedata_t *p_data ); static int DVDProbe ( probedata_t *p_data );
static int DVDCheckCSS ( struct input_thread_s * ); static int DVDCheckCSS ( struct input_thread_s * );
static int DVDRead ( struct input_thread_s *, static int DVDRead ( struct input_thread_s *, data_packet_t ** );
data_packet_t * p_packets[INPUT_READ_ONCE] );
static void DVDInit ( struct input_thread_s * ); static void DVDInit ( struct input_thread_s * );
static void DVDOpen ( struct input_thread_s * ); static void DVDOpen ( struct input_thread_s * );
static void DVDClose ( struct input_thread_s * ); static void DVDClose ( struct input_thread_s * );
...@@ -84,10 +86,6 @@ static void DVDEnd ( struct input_thread_s * ); ...@@ -84,10 +86,6 @@ static void DVDEnd ( struct input_thread_s * );
/* FIXME : DVDSeek should be on 64 bits ? Is it possible in input ? */ /* FIXME : DVDSeek should be on 64 bits ? Is it possible in input ? */
static int DVDSeek ( struct input_thread_s *, off_t ); static int DVDSeek ( struct input_thread_s *, off_t );
static int DVDRewind ( struct input_thread_s * ); static int DVDRewind ( struct input_thread_s * );
static struct data_packet_s * NewPacket ( void *, size_t );
static pes_packet_t * NewPES( void * p_garbage );
static void DeletePacket( void *, struct data_packet_s * );
static void DeletePES ( void *, struct pes_packet_s * );
/***************************************************************************** /*****************************************************************************
* Functions exported as capabilities. They are declared as static so that * Functions exported as capabilities. They are declared as static so that
...@@ -103,12 +101,12 @@ void input_getfunctions( function_list_t * p_function_list ) ...@@ -103,12 +101,12 @@ void input_getfunctions( function_list_t * p_function_list )
input.pf_end = DVDEnd; input.pf_end = DVDEnd;
input.pf_read = DVDRead; input.pf_read = DVDRead;
input.pf_demux = input_DemuxPS; input.pf_demux = input_DemuxPS;
input.pf_new_packet = NewPacket; input.pf_new_packet = input_NetlistNewPacket;
input.pf_new_pes = NewPES; input.pf_new_pes = input_NetlistNewPES;
input.pf_delete_packet = DeletePacket; input.pf_delete_packet = input_NetlistDeletePacket;
input.pf_delete_pes = DeletePES; input.pf_delete_pes = input_NetlistDeletePES;
input.pf_rewind = NULL; input.pf_rewind = DVDRewind;
input.pf_seek = NULL; input.pf_seek = DVDSeek;
#undef input #undef input
} }
...@@ -117,7 +115,7 @@ void input_getfunctions( function_list_t * p_function_list ) ...@@ -117,7 +115,7 @@ void input_getfunctions( function_list_t * p_function_list )
*/ */
/***************************************************************************** /*****************************************************************************
* PSProbe: verifies that the stream is a PS stream * DVDProbe: verifies that the stream is a PS stream
*****************************************************************************/ *****************************************************************************/
static int DVDProbe( probedata_t *p_data ) static int DVDProbe( probedata_t *p_data )
{ {
...@@ -135,19 +133,11 @@ static int DVDProbe( probedata_t *p_data ) ...@@ -135,19 +133,11 @@ static int DVDProbe( probedata_t *p_data )
static int DVDCheckCSS( input_thread_t * p_input ) static int DVDCheckCSS( input_thread_t * p_input )
{ {
#if defined( HAVE_SYS_DVDIO_H ) || defined( LINUX_DVD ) #if defined( HAVE_SYS_DVDIO_H ) || defined( LINUX_DVD )
dvd_struct dvd; return CSSTest( p_input->i_handle );
dvd.type = DVD_STRUCT_COPYRIGHT;
dvd.copyright.layer_num = 0;
if( ioctl( p_input->i_handle, DVD_READ_STRUCT, &dvd ) < 0 )
{
intf_ErrMsg( "DVD ioctl error" );
return -1;
}
return dvd.copyright.cpst;
#else #else
/* DVD ioctls unavailable.
* FIXME: Check the stream to see whether it is encrypted or not
* to give and accurate error message */
return 0; return 0;
#endif #endif
} }
...@@ -171,16 +161,22 @@ static void DVDInit( input_thread_t * p_input ) ...@@ -171,16 +161,22 @@ static void DVDInit( input_thread_t * p_input )
p_input->p_method_data = NULL; p_input->p_method_data = NULL;
p_method->i_fd = p_input->i_handle; p_method->i_fd = p_input->i_handle;
/* FIXME: read several packets once */
p_method->i_read_once = 1;
p_method->i_title = 0;
lseek64( p_input->i_handle, 0, SEEK_SET ); lseek64( p_input->i_handle, 0, SEEK_SET );
/* Reading structures initialisation */
input_NetlistInit( p_input, 4096, 4096, DVD_LB_SIZE,
p_method->i_read_once );
/* Ifo initialisation */ /* Ifo initialisation */
p_method->ifo = IfoInit( p_input->i_handle ); p_method->ifo = IfoInit( p_input->i_handle );
IfoRead( &(p_method->ifo) ); IfoRead( &(p_method->ifo) );
intf_Msg( "Ifo: Initialized" ); intf_Msg( "Ifo: Initialized" );
#if defined( HAVE_SYS_DVDIO_H ) || defined( LINUX_DVD )
/* CSS authentication and keys */ /* CSS authentication and keys */
if( ( p_method->b_encrypted = DVDCheckCSS( p_input ) ) ) if( ( p_method->b_encrypted = DVDCheckCSS( p_input ) ) )
{ {
...@@ -205,15 +201,15 @@ static void DVDInit( input_thread_t * p_input ) ...@@ -205,15 +201,15 @@ static void DVDInit( input_thread_t * p_input )
CSSGetKeys( &(p_method->css) ); CSSGetKeys( &(p_method->css) );
intf_Msg( "CSS: Initialized" ); intf_Msg( "CSS: Initialized" );
} }
#endif
/* FIXME: Kludge beginning of vts_01_1.vob */
i_start = p_method->ifo.p_vts[0].i_pos + i_start = p_method->ifo.p_vts[0].i_pos +
p_method->ifo.p_vts[0].mat.i_tt_vobs_ssector *DVD_LB_SIZE; p_method->ifo.p_vts[0].mat.i_tt_vobs_ssector *DVD_LB_SIZE;
i_start = lseek64( p_input->i_handle, i_start, SEEK_SET ); i_start = lseek64( p_input->i_handle, i_start, SEEK_SET );
intf_Msg( "VOB start at : %lld", (long long)i_start ); intf_Msg( "VOB start at : %lld", (long long)i_start );
#if 1 /* Initialize ES structures */
input_InitStream( p_input, sizeof( stream_ps_data_t ) ); input_InitStream( p_input, sizeof( stream_ps_data_t ) );
input_AddProgram( p_input, 0, sizeof( stream_ps_data_t ) ); input_AddProgram( p_input, 0, sizeof( stream_ps_data_t ) );
...@@ -251,7 +247,8 @@ static void DVDInit( input_thread_t * p_input ) ...@@ -251,7 +247,8 @@ static void DVDInit( input_thread_t * p_input )
{ {
/* FIXME: use i_p_config_t */ /* FIXME: use i_p_config_t */
input_ParsePS( p_input, pp_packets[i] ); input_ParsePS( p_input, pp_packets[i] );
DeletePacket( p_input->p_method_data, pp_packets[i] ); input_NetlistDeletePacket( p_input->p_method_data,
pp_packets[i] );
} }
/* File too big. */ /* File too big. */
...@@ -338,12 +335,12 @@ static void DVDInit( input_thread_t * p_input ) ...@@ -338,12 +335,12 @@ static void DVDInit( input_thread_t * p_input )
} }
else else
{ {
#endif
/* The programs will be added when we read them. */ /* The programs will be added when we read them. */
vlc_mutex_lock( &p_input->stream.stream_lock ); vlc_mutex_lock( &p_input->stream.stream_lock );
p_input->stream.pp_programs[0]->b_is_ok = 0; p_input->stream.pp_programs[0]->b_is_ok = 0;
vlc_mutex_unlock( &p_input->stream.stream_lock ); vlc_mutex_unlock( &p_input->stream.stream_lock );
} }
} }
/***************************************************************************** /*****************************************************************************
...@@ -388,134 +385,85 @@ static void DVDClose( input_thread_t * p_input ) ...@@ -388,134 +385,85 @@ static void DVDClose( input_thread_t * p_input )
*****************************************************************************/ *****************************************************************************/
static void DVDEnd( input_thread_t * p_input ) static void DVDEnd( input_thread_t * p_input )
{ {
/* FIXME: check order of calls */
// CSSEnd( p_input );
// IfoEnd( (ifo_t*)(&p_input->p_plugin_data->ifo ) );
free( p_input->stream.p_demux_data ); free( p_input->stream.p_demux_data );
free( p_input->p_plugin_data ); free( p_input->p_plugin_data );
input_NetlistEnd( p_input );
} }
/***************************************************************************** /*****************************************************************************
* SafeRead: reads a chunk of stream and correctly detects errors * DVDRead: reads data packets into the netlist.
*****************************************************************************/
static __inline__ int SafeRead( input_thread_t * p_input, byte_t * p_buffer,
size_t i_len )
{
// FIXME : aie aie ugly kludge for testing purposes :)
static byte_t p_tmp[2048];
thread_dvd_data_t * p_method;
int i_nb;
off64_t i_pos;
p_method = (thread_dvd_data_t *)p_input->p_plugin_data;
i_pos = lseek64( p_input->i_handle, 0, SEEK_CUR );
if( !p_method->b_encrypted )
{
i_nb = read( p_input->i_handle, p_buffer, i_len );
}
else
{
lseek64( p_input->i_handle, i_pos & ~0x7FF, SEEK_SET );
i_nb = read( p_input->i_handle, p_tmp, 0x800 );
#if defined( HAVE_SYS_DVDIO_H ) || defined( LINUX_DVD )
CSSDescrambleSector( p_method->css.p_title_key[0].key, p_tmp );
#endif
memcpy( p_buffer, p_tmp + (i_pos & 0x7FF ), i_len );
}
switch( i_nb )
{
case 0:
/* End of File */
return( 1 );
case -1:
intf_ErrMsg( "DVD: Read failed (%s)", strerror(errno) );
return( -1 );
default:
break;
}
vlc_mutex_lock( &p_input->stream.stream_lock );
p_input->stream.i_tell =
lseek64( p_input->i_handle, i_pos+i_len, SEEK_SET );
vlc_mutex_unlock( &p_input->stream.stream_lock );
return( 0 );
}
/*****************************************************************************
* DVDRead: reads data packets
***************************************************************************** *****************************************************************************
* Returns -1 in case of error, 0 if everything went well, and 1 in case of * Returns -1 in case of error, 0 if everything went well, and 1 in case of
* EOF. * EOF.
*****************************************************************************/ *****************************************************************************/
static int DVDRead( input_thread_t * p_input, static int DVDRead( input_thread_t * p_input,
data_packet_t * pp_packets[INPUT_READ_ONCE] ) data_packet_t ** pp_packets )
{ {
byte_t p_header[6];
data_packet_t * p_data;
size_t i_packet_size;
int i_packet, i_error;
thread_dvd_data_t * p_method; thread_dvd_data_t * p_method;
netlist_t * p_netlist;
struct iovec * p_vec;
struct data_packet_s * p_data;
u8 * pi_cur;
int i_packet_size;
int i_packet;
int i_pos;
int i;
boolean_t b_first_packet;
p_method = (thread_dvd_data_t *)p_input->p_plugin_data; p_method = ( thread_dvd_data_t * ) p_input->p_plugin_data;
p_netlist = ( netlist_t * ) p_input->p_method_data;
memset( pp_packets, 0, INPUT_READ_ONCE * sizeof(data_packet_t *) ); /* Get an iovec pointer */
for( i_packet = 0; i_packet < INPUT_READ_ONCE; i_packet++ ) if( ( p_vec = input_NetlistGetiovec( p_netlist, &p_data ) ) == NULL )
{ {
/* Read what we believe to be a packet header. */ intf_ErrMsg( "DVD: read error" );
if( (i_error = SafeRead( p_input, p_header, 6 )) ) return -1;
{
return( i_error );
} }
if( (U32_AT(p_header) & 0xFFFFFF00) != 0x100L ) /* Reads from DVD */
{ readv( p_input->i_handle, p_vec, p_method->i_read_once );
/* This is not the startcode of a packet. Read the stream
* until we find one. */
u32 i_startcode = U32_AT(p_header);
int i_nb;
byte_t i_dummy;
if( i_startcode ) if( p_method->b_encrypted )
{ {
/* It is common for MPEG-1 streams to pad with zeros for( i=0 ; i<p_method->i_read_once ; i++ )
* (although it is forbidden by the recommendation), so
* don't bother everybody in this case. */
intf_WarnMsg( 1, "Garbage at input (%x)", i_startcode );
}
while( (i_startcode & 0xFFFFFF00) != 0x100L )
{ {
i_startcode <<= 8; CSSDescrambleSector(
if( (i_nb = SafeRead( p_input, &i_dummy, 1 )) != 0 ) p_method->css.p_title_key[p_method->i_title].key,
{ p_vec[i].iov_base );
i_startcode |= i_dummy; ((u8*)(p_vec[i].iov_base))[0x14] &= 0x8F;
}
else
{
return( 1 );
} }
} }
/* Packet found. */ /* Update netlist indexes */
*(u32 *)p_header = U32_AT(&i_startcode); input_NetlistMviovec( p_netlist, p_method->i_read_once );
if( (i_error = SafeRead( p_input, p_header + 4, 2 )) )
{
return( i_error );
}
}
if( U32_AT(p_header) != 0x1BA ) i_packet = 0;
/* Read headers to compute payload length */
for( i = 0 ; i < p_method->i_read_once ; i++ )
{
i_pos = 0;
b_first_packet = 1;
while( i_pos < p_netlist->i_buffer_size )
{
pi_cur = (u8*)(p_vec[i].iov_base + i_pos);
/*default header */
if( U32_AT( pi_cur ) != 0x1BA )
{ {
/* That's the case for all packets, except pack header. */ /* That's the case for all packets, except pack header. */
i_packet_size = U16_AT(&p_header[4]); i_packet_size = U16_AT( pi_cur + 4 );
} }
else else
{ {
/* Pack header. */ /* Pack header. */
if( (p_header[4] & 0xC0) == 0x40 ) if( ( pi_cur[4] & 0xC0 ) == 0x40 )
{ {
/* MPEG-2 */ /* MPEG-2 */
i_packet_size = 8; i_packet_size = 8;
} }
else if( (p_header[4] & 0xF0) == 0x20 ) else if( ( pi_cur[4] & 0xF0 ) == 0x20 )
{ {
/* MPEG-1 */ /* MPEG-1 */
i_packet_size = 6; i_packet_size = 6;
...@@ -526,42 +474,30 @@ static int DVDRead( input_thread_t * p_input, ...@@ -526,42 +474,30 @@ static int DVDRead( input_thread_t * p_input,
return( -1 ); return( -1 );
} }
} }
if( b_first_packet )
/* Fetch a packet of the appropriate size. */
if( (p_data = NewPacket( p_input, i_packet_size + 6 )) == NULL )
{ {
intf_ErrMsg( "Out of memory" ); p_data->b_discard_payload = 0;
return( -1 ); b_first_packet = 0;
} }
else
/* Copy the header we already read. */
memcpy( p_data->p_buffer, p_header, 6 );
/* Read the remaining of the packet. */
if( i_packet_size && (i_error =
SafeRead( p_input, p_data->p_buffer + 6, i_packet_size )) )
{ {
return( i_error ); p_data = input_NetlistNewPacket( p_netlist ,
i_packet_size + 6 );
memcpy( p_data->p_buffer,
p_vec[i].iov_base + i_pos , i_packet_size + 6 );
} }
/* In MPEG-2 pack headers we still have to read stuffing bytes. */ p_data->p_payload_end = p_data->p_payload_start + i_packet_size + 6;
if( U32_AT(p_header) == 0x1BA ) pp_packets[i_packet] = p_data;
{ i_packet++;
if( i_packet_size == 8 && (p_data->p_buffer[13] & 0x7) != 0 ) i_pos += i_packet_size + 6;
{
/* MPEG-2 stuffing bytes */
byte_t p_garbage[8];
if( (i_error = SafeRead( p_input, p_garbage,
p_data->p_buffer[13] & 0x7)) )
{
return( i_error );
}
} }
} }
pp_packets[i_packet] = NULL;
/* Give the packet to the other input stages. */ vlc_mutex_lock( &p_input->stream.stream_lock );
pp_packets[i_packet] = p_data; p_input->stream.i_tell += p_method->i_read_once *DVD_LB_SIZE;
} vlc_mutex_unlock( &p_input->stream.stream_lock );
return( 0 ); return( 0 );
} }
...@@ -584,100 +520,3 @@ static int DVDSeek( input_thread_t * p_input, off_t i_off ) ...@@ -584,100 +520,3 @@ static int DVDSeek( input_thread_t * p_input, off_t i_off )
{ {
return( -1 ); return( -1 );
} }
/*
* Packet management utilities
*/
/*****************************************************************************
* NewPacket: allocates a data packet
*****************************************************************************/
static struct data_packet_s * NewPacket( void * p_garbage,
size_t i_size )
{
data_packet_t * p_data;
/* Safety check */
if( i_size > INPUT_MAX_PACKET_SIZE )
{
intf_ErrMsg( "Packet too big (%d)", i_size );
return NULL;
}
if( (p_data = (data_packet_t *)malloc( sizeof(data_packet_t) )) == NULL )
{
intf_DbgMsg( "Out of memory" );
return NULL;
}
if( (p_data->p_buffer = (byte_t *)malloc( i_size )) == NULL )
{
intf_DbgMsg( "Out of memory" );
free( p_data );
return NULL;
}
/* Initialize data */
p_data->p_next = NULL;
p_data->b_discard_payload = 0;
p_data->p_payload_start = p_data->p_buffer;
p_data->p_payload_end = p_data->p_buffer + i_size;
return( p_data );
}
/*****************************************************************************
* NewPES: allocates a pes packet
*****************************************************************************/
static pes_packet_t * NewPES( void * p_garbage )
{
pes_packet_t * p_pes;
if( (p_pes = (pes_packet_t *)malloc( sizeof(pes_packet_t) )) == NULL )
{
intf_DbgMsg( "Out of memory" );
return NULL;
}
p_pes->b_messed_up = p_pes->b_data_alignment = p_pes->b_discontinuity =
p_pes->i_pts = p_pes->i_dts = 0;
p_pes->i_pes_size = 0;
p_pes->p_first = NULL;
return( p_pes );
}
/*****************************************************************************
* DeletePacket: deletes a data packet
*****************************************************************************/
static void DeletePacket( void * p_garbage,
data_packet_t * p_data )
{
ASSERT(p_data);
ASSERT(p_data->p_buffer);
free( p_data->p_buffer );
free( p_data );
}
/*****************************************************************************
* DeletePES: deletes a PES packet and associated data packets
*****************************************************************************/
static void DeletePES( void * p_garbage, pes_packet_t * p_pes )
{
data_packet_t * p_data;
data_packet_t * p_next;
p_data = p_pes->p_first;
while( p_data != NULL )
{
p_next = p_data->p_next;
free( p_data->p_buffer );
free( p_data );
p_data = p_next;
}
free( p_pes );
}
src/input/input_dvd.c deleted 100644 → 0
View file @ 0935df9e
/*****************************************************************************
* input_dvd.c: DVD raw reading plugin.
* ---
* This plugins should handle all the known specificities of the DVD format,
* especially the 2048 bytes logical block size.
* It depends on:
* -input_netlist used to read packets
* -dvd_ifo for ifo parsing and analyse
* -dvd_css for unscrambling
* -dvd_udf to find files
*****************************************************************************
* Copyright (C) 1998-2001 VideoLAN
* $Id: input_dvd.c,v 1.11 2001/02/08 01:34:42 stef Exp $
*
* Author: Stphane Borel <stef@via.ecp.fr>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#include "defs.h"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <netinet/in.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <string.h>
#include <errno.h>
#include <malloc.h>
#include "config.h"
#include "common.h"
#include "threads.h"
#include "mtime.h"
#include "intf_msg.h"
#include "main.h"
#include "stream_control.h"
#include "input_ext-intf.h"
#include "input_ext-dec.h"
#include "input.h"
#include "input_netlist.h"
#include "dvd_ifo.h"
#include "dvd_css.h"
#include "input_dvd.h"
#include "mpeg_system.h"
#include "debug.h"
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static int DVDProbe ( struct input_thread_s * );
static int DVDRead ( struct input_thread_s *,
data_packet_t * p_packets[INPUT_READ_ONCE] );
static void DVDInit ( struct input_thread_s * );
static void DVDEnd ( struct input_thread_s * );
/* FIXME : DVDSeek should be on 64 bits ? Is it possible in input ? */
static int DVDSeek ( struct input_thread_s *, off_t );
static int DVDRewind ( struct input_thread_s * );
/*
* Data reading functions
*/
/*****************************************************************************
* DVDProbe: check the stream
*****************************************************************************/
static int DVDProbe( input_thread_t * p_input )
{
#if defined( HAVE_SYS_DVDIO_H ) || defined( LINUX_DVD )
return CSSTest( p_input->i_handle );
#else
/* DVD ioctls unavailable.
* FIXME: Check the stream to see whether it is encrypted or not
* to give and accurate error message */
return 0;
#endif
}
/*****************************************************************************
* DVDInit: initializes DVD structures
*****************************************************************************/
static void DVDInit( input_thread_t * p_input )
{
thread_dvd_data_t * p_method;
off64_t i_start;
if( (p_method = malloc( sizeof(thread_dvd_data_t) )) == NULL )
{
intf_ErrMsg( "Out of memory" );
p_input->b_error = 1;
return;
}
p_input->p_plugin_data = (void *)p_method;
p_input->p_method_data = NULL;
p_method->i_fd = p_input->i_handle;
/* FIXME: We assume that there are at most three data packets in a sector */
p_method->i_read_once = 1;
p_method->i_title = 0;
lseek64( p_input->i_handle, 0, SEEK_SET );
/* Reading structures initialisation */
input_NetlistInit( p_input, 4096, 4096, DVD_LB_SIZE,
p_method->i_read_once );
/* Ifo initialisation */
p_method->ifo = IfoInit( p_input->i_handle );
IfoRead( &(p_method->ifo) );
intf_Msg( "Ifo: Initialized" );
/* CSS authentication and keys */
if( ( p_method->b_encrypted = DVDProbe( p_input ) ) )
{
int i;
p_method->css = CSSInit( p_input->i_handle );
p_method->css.i_title_nb = p_method->ifo.vmg.mat.i_tts_nb;
if( (p_method->css.p_title_key =
malloc( p_method->css.i_title_nb *
sizeof(p_method->css.p_title_key) ) ) == NULL )
{
intf_ErrMsg( "Out of memory" );
p_input->b_error = 1;
return;
}
for( i=0 ; i<p_method->css.i_title_nb ; i++ )
{
p_method->css.p_title_key[i].i =
p_method->ifo.p_vts[i].i_pos +
p_method->ifo.p_vts[i].mat.i_tt_vobs_ssector *DVD_LB_SIZE;
}
CSSGetKeys( &(p_method->css) );
intf_Msg( "CSS: Initialized" );
}
/* FIXME: Kludge beginning of vts_01_1.vob */
i_start = p_method->ifo.p_vts[0].i_pos +
p_method->ifo.p_vts[0].mat.i_tt_vobs_ssector *DVD_LB_SIZE;
i_start = lseek64( p_input->i_handle, i_start, SEEK_SET );
intf_Msg( "VOB start at : %lld", (long long)i_start );
/* Initialize ES structures */
input_InitStream( p_input, sizeof( stream_ps_data_t ) );
input_AddProgram( p_input, 0, sizeof( stream_ps_data_t ) );
if( p_input->stream.b_seekable )
{
stream_ps_data_t * p_demux_data =
(stream_ps_data_t *)p_input->stream.pp_programs[0]->p_demux_data;
/* Pre-parse the stream to gather stream_descriptor_t. */
p_input->stream.pp_programs[0]->b_is_ok = 0;
p_demux_data->i_PSM_version = EMPTY_PSM_VERSION;
while( !p_input->b_die && !p_input->b_error
&& !p_demux_data->b_has_PSM )
{
int i_result, i;
data_packet_t * pp_packets[INPUT_READ_ONCE];
i_result = DVDRead( p_input, pp_packets );
if( i_result == 1 )
{
/* EOF */
vlc_mutex_lock( &p_input->stream.stream_lock );
p_input->stream.pp_programs[0]->b_is_ok = 1;
vlc_mutex_unlock( &p_input->stream.stream_lock );
break;
}
if( i_result == -1 )
{
p_input->b_error = 1;
break;
}
for( i = 0; i < INPUT_READ_ONCE && pp_packets[i] != NULL; i++ )
{
/* FIXME: use i_p_config_t */
input_ParsePS( p_input, pp_packets[i] );
input_NetlistDeletePacket( p_input->p_method_data,
pp_packets[i] );
}
/* File too big. */
if( p_input->stream.i_tell > INPUT_PREPARSE_LENGTH )
{
break;
}
}
lseek64( p_input->i_handle, i_start, SEEK_SET );
vlc_mutex_lock( &p_input->stream.stream_lock );
p_input->stream.i_tell = 0;
if( p_demux_data->b_has_PSM )
{
/* (The PSM decoder will care about spawning the decoders) */
p_input->stream.pp_programs[0]->b_is_ok = 1;
}
#ifdef AUTO_SPAWN
else
{
/* (We have to do it ourselves) */
int i_es;
/* FIXME: we should do multiple passes in case an audio type
* is not present */
for( i_es = 0;
i_es < p_input->stream.pp_programs[0]->i_es_number;
i_es++ )
{
#define p_es p_input->stream.pp_programs[0]->pp_es[i_es]
switch( p_es->i_type )
{
case MPEG1_VIDEO_ES:
case MPEG2_VIDEO_ES:
input_SelectES( p_input, p_es );
break;
case MPEG1_AUDIO_ES:
case MPEG2_AUDIO_ES:
if( main_GetIntVariable( INPUT_DVD_CHANNEL_VAR, 0 )
== (p_es->i_id & 0x1F) )
switch( main_GetIntVariable( INPUT_DVD_AUDIO_VAR, 0 ) )
{
case 0:
main_PutIntVariable( INPUT_DVD_AUDIO_VAR,
REQUESTED_MPEG );
case REQUESTED_MPEG:
input_SelectES( p_input, p_es );
}
break;
case AC3_AUDIO_ES:
if( main_GetIntVariable( INPUT_DVD_CHANNEL_VAR, 0 )
== ((p_es->i_id & 0xF00) >> 8) )
switch( main_GetIntVariable( INPUT_DVD_AUDIO_VAR, 0 ) )
{
case 0:
main_PutIntVariable( INPUT_DVD_AUDIO_VAR,
REQUESTED_AC3 );
case REQUESTED_AC3:
input_SelectES( p_input, p_es );
}
break;
case DVD_SPU_ES:
if( main_GetIntVariable( INPUT_DVD_SUBTITLE_VAR, -1 )
== ((p_es->i_id & 0x1F00) >> 8) )
{
input_SelectES( p_input, p_es );
}
break;
case LPCM_AUDIO_ES:
/* FIXME ! */
break;
}
}
}
#endif
#ifdef STATS
input_DumpStream( p_input );
#endif
vlc_mutex_unlock( &p_input->stream.stream_lock );
}
else
{
/* The programs will be added when we read them. */
vlc_mutex_lock( &p_input->stream.stream_lock );
p_input->stream.pp_programs[0]->b_is_ok = 0;
vlc_mutex_unlock( &p_input->stream.stream_lock );
}
}
/*****************************************************************************
* DVDEnd: frees unused data
*****************************************************************************/
static void DVDEnd( input_thread_t * p_input )
{
/* FIXME: check order of calls */
// CSSEnd( p_input );
// IfoEnd( (ifo_t*)(&p_input->p_plugin_data->ifo ) );
free( p_input->stream.p_demux_data );
free( p_input->p_plugin_data );
input_NetlistEnd( p_input );
}
/*****************************************************************************
* DVDRead: reads data packets into the netlist.
*****************************************************************************
* Returns -1 in case of error, 0 if everything went well, and 1 in case of
* EOF.
*****************************************************************************/
static int DVDRead( input_thread_t * p_input,
data_packet_t ** pp_packets )
{
thread_dvd_data_t * p_method;
netlist_t * p_netlist;
struct iovec * p_vec;
struct data_packet_s * p_data;
u8 * pi_cur;
int i_packet_size;
int i_packet;
int i_pos;
int i;
boolean_t b_first_packet;
p_method = ( thread_dvd_data_t * ) p_input->p_plugin_data;
p_netlist = ( netlist_t * ) p_input->p_method_data;
/* Get an iovec pointer */
if( ( p_vec = input_NetlistGetiovec( p_netlist, &p_data ) ) == NULL )
{
intf_ErrMsg( "DVD: read error" );
return -1;
}
/* Reads from DVD */
readv( p_input->i_handle, p_vec, p_method->i_read_once );
input_NetlistMviovec( p_netlist, p_method->i_read_once );
if( p_method->b_encrypted )
{
for( i=0 ; i<p_method->i_read_once ; i++ )
{
CSSDescrambleSector(
p_method->css.p_title_key[p_method->i_title].key,
p_vec[i].iov_base );
}
}
i_packet = 0;
/* Read headers to compute payload length */
for( i = 0 ; i < p_method->i_read_once ; i++ )
{
i_pos = 0;
b_first_packet = 1;
while( i_pos < p_netlist->i_buffer_size )
{
pi_cur = (u8*)(p_vec[i].iov_base + i_pos);
/*default header */
if( U32_AT( pi_cur ) != 0x1BA )
{
/* That's the case for all packets, except pack header. */
i_packet_size = U16_AT( pi_cur + 4 );
}
else
{
/* Pack header. */
if( ( pi_cur[4] & 0xC0 ) == 0x40 )
{
/* MPEG-2 */
i_packet_size = 8;
}
else if( ( pi_cur[4] & 0xF0 ) == 0x20 )
{
/* MPEG-1 */
i_packet_size = 6;
}
else
{
intf_ErrMsg( "Unable to determine stream type" );
return( -1 );
}
}
if( b_first_packet )
{
p_data->b_discard_payload = 0;
b_first_packet = 0;
}
else
{
p_data = input_NetlistNewPacket( p_netlist ,
i_packet_size + 6 );
memcpy( p_data->p_buffer,
p_vec[i].iov_base + i_pos , i_packet_size + 6 );
}
p_data->p_payload_end = p_data->p_payload_start + i_packet_size + 6;
pp_packets[i_packet] = p_data;
i_packet++;
i_pos += i_packet_size + 6;
}
}
pp_packets[i_packet] = NULL;
vlc_mutex_lock( &p_input->stream.stream_lock );
p_input->stream.i_tell += p_method->i_read_once *DVD_LB_SIZE;
vlc_mutex_unlock( &p_input->stream.stream_lock );
return( 0 );
}
/*****************************************************************************
* DVDRewind : reads a stream backward
*****************************************************************************/
static int DVDRewind( input_thread_t * p_input )
{
return( -1 );
}
/*****************************************************************************
* DVDSeek : Goes to a given position on the stream ; this one is used by the
* input and translate chronological position from input to logical postion
* on the device
*****************************************************************************/
static int DVDSeek( input_thread_t * p_input, off_t i_off )
{
return( -1 );
}
/*****************************************************************************
* DVDKludge: fakes a DVD plugin (FIXME)
*****************************************************************************/
input_capabilities_t * DVDKludge( void )
{
input_capabilities_t * p_plugin;
p_plugin = (input_capabilities_t *)malloc( sizeof(input_capabilities_t) );
p_plugin->pf_probe = DVDProbe;
p_plugin->pf_init = DVDInit;
p_plugin->pf_end = DVDEnd;
p_plugin->pf_read = DVDRead;
p_plugin->pf_demux = input_DemuxPS; /* FIXME: use i_p_config_t ! */
p_plugin->pf_new_packet = input_NetlistNewPacket;
p_plugin->pf_new_pes = input_NetlistNewPES;
p_plugin->pf_delete_packet = input_NetlistDeletePacket;
p_plugin->pf_delete_pes = input_NetlistDeletePES;
p_plugin->pf_rewind = DVDRewind;
p_plugin->pf_seek = DVDSeek;
return( p_plugin );
}
src/input/input_dvd.h deleted 100644 → 0
View file @ 0935df9e
/*****************************************************************************
* input_dvd.h: thread structure of the DVD plugin
*****************************************************************************
* Copyright (C) 1999-2001 VideoLAN
*
* Author: Stéphane Borel <stef@via.ecp.fr>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#define DVD_LB_SIZE 2048
/*****************************************************************************
* thread_dvd_data_t: extension of input_thread_t for DVD specificity
*****************************************************************************/
typedef struct thread_dvd_data_s
{
int i_fd; // File descriptor of device
boolean_t b_encrypted; // CSS encryption
int i_read_once; // NB of bytes read by DVDRead
int i_title; // Current Title
/* Scrambling Information */
#if defined( HAVE_SYS_DVDIO_H ) || defined( LINUX_DVD )
struct css_s css;
#endif
/* Structure that contains all information of the DVD */
struct ifo_s ifo;
} thread_dvd_data_t;
/*****************************************************************************
* Prototypes in dvd_ifo.c
*****************************************************************************/
struct ifo_s IfoInit( int );
void IfoRead( struct ifo_s * );
void IfoEnd( ifo_t * );
/*****************************************************************************
* Prototypes in dvd_css.c
*****************************************************************************/
#if defined( HAVE_SYS_DVDIO_H ) || defined( LINUX_DVD )
int CSSTest ( int );
struct css_s CSSInit ( int );
int CSSGetKeys ( struct css_s * );
int CSSDescrambleSector( u8 * , u8 * );
#endif
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