* vcd.c : VCD input module for vlc
*****************************************************************************
* Copyright (C) 2000-2004 VideoLAN
- * $Id: vcd.c,v 1.25 2004/01/25 17:31:22 gbazin Exp $
+ * $Id$
*
* Author: Johan Bilien <jobi@via.ecp.fr>
*
/*****************************************************************************
* Preamble
*****************************************************************************/
-#include <stdio.h>
#include <stdlib.h>
#include <vlc/vlc.h>
#include <vlc/input.h>
-#include "../../demux/mpeg/system.h"
+#include "cdrom.h"
+
+/*****************************************************************************
+ * Module descriptior
+ *****************************************************************************/
+static int Open ( vlc_object_t * );
+static void Close( vlc_object_t * );
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#endif
+vlc_module_begin();
+ set_description( _("VCD input") );
+ set_capability( "access", 80 );
+ set_callbacks( Open, Close );
-#include <string.h>
+ add_usage_hint( N_("[vcd:][device][@[title][,[chapter]]]") );
+ add_shortcut( "svcd" );
+vlc_module_end();
-#include "cdrom.h"
+/*****************************************************************************
+ * Local prototypes
+ *****************************************************************************/
/* how many blocks VCDRead will read in each loop */
#define VCD_BLOCKS_ONCE 20
#define VCD_DATA_ONCE (VCD_BLOCKS_ONCE * VCD_DATA_SIZE)
-/*****************************************************************************
- * thread_vcd_data_t: VCD information
- *****************************************************************************/
-typedef struct thread_vcd_data_s
+struct access_sys_t
{
vcddev_t *vcddev; /* vcd device descriptor */
int i_nb_tracks; /* Nb of tracks (titles) */
int * p_entries; /* Entry points */
vlc_bool_t b_valid_ep; /* Valid entry points flag */
vlc_bool_t b_end_of_track; /* If the end of track was reached */
+};
-} thread_vcd_data_t;
-
-/*****************************************************************************
- * Local prototypes
- *****************************************************************************/
-static int VCDOpen ( vlc_object_t * );
-static void VCDClose ( vlc_object_t * );
static int VCDRead ( input_thread_t *, byte_t *, size_t );
static void VCDSeek ( input_thread_t *, off_t );
static int VCDSetArea ( input_thread_t *, input_area_t * );
static int VCDSetProgram ( input_thread_t *, pgrm_descriptor_t * );
static int VCDEntryPoints ( input_thread_t * );
-/*****************************************************************************
- * Module descriptior
- *****************************************************************************/
-vlc_module_begin();
- set_description( _("VCD input") );
- set_capability( "access", 80 );
- set_callbacks( VCDOpen, VCDClose );
- add_shortcut( "svcd" );
-vlc_module_end();
-
-/*
- * Data reading functions
- */
-
/*****************************************************************************
* VCDOpen: open vcd
*****************************************************************************/
-static int VCDOpen( vlc_object_t *p_this )
+static int Open( vlc_object_t *p_this )
{
- input_thread_t * p_input = (input_thread_t *)p_this;
- char * psz_orig;
- char * psz_parser;
- char * psz_source;
- char * psz_next;
- thread_vcd_data_t * p_vcd;
+ input_thread_t *p_input = (input_thread_t *)p_this;
+ access_sys_t *p_sys;
+ char *psz_dup = strdup( p_input->psz_name );
+ char *psz;
+
int i;
input_area_t * p_area;
- int i_title = 1;
- int i_chapter = 1;
+ int i_title = 0;
+ int i_chapter = 0;
vcddev_t *vcddev;
- /* parse the options passed in command line : */
- psz_orig = psz_parser = psz_source = strdup( p_input->psz_name );
-
- if( !psz_orig )
- {
- return( -1 );
- }
-
- while( *psz_parser && *psz_parser != '@' )
+ /* Command line: vcd://[dev_path][@title[,chapter]] */
+ if( ( psz = strchr( psz_dup, '@' ) ) )
{
- psz_parser++;
- }
-
- if( *psz_parser == '@' )
- {
- /* Found options */
- *psz_parser = '\0';
- ++psz_parser;
+ *psz++ = '\0';
- i_title = (int)strtol( psz_parser, &psz_next, 10 );
- if( *psz_next )
+ i_title = strtol( psz, &psz, 0 );
+ if( *psz )
{
- psz_parser = psz_next + 1;
- i_chapter = (int)strtol( psz_parser, &psz_next, 10 );
+ i_chapter = strtol( psz, &psz, 0 );
}
-
- i_title = i_title > 0 ? i_title : 1;
- i_chapter = i_chapter > 0 ? i_chapter : 1;
}
- if( !*psz_source )
+ if( *psz_dup == '\0' )
{
- if( !p_input->psz_access )
+ free( psz_dup );
+
+ /* Only when selected */
+ if( *p_input->psz_access == '\0' )
+ return VLC_EGENERIC;
+
+ psz_dup = var_CreateGetString( p_input, "vcd" );
+ if( *psz_dup == '\0' )
{
- free( psz_orig );
- return -1;
+ free( psz_dup );
+ return VLC_EGENERIC;
}
- psz_source = config_GetPsz( p_input, "vcd" );
- if( !psz_source ) return -1;
}
/* Open VCD */
- if( !(vcddev = ioctl_Open( p_this, psz_source )) )
+ if( !(vcddev = ioctl_Open( p_this, psz_dup )) )
{
- msg_Warn( p_input, "could not open %s", psz_source );
- free( psz_source );
- return -1;
+ msg_Warn( p_input, "could not open %s", psz_dup );
+ free( psz_dup );
+ return VLC_EGENERIC;
}
- p_vcd = malloc( sizeof(thread_vcd_data_t) );
- if( p_vcd == NULL )
+ p_sys = malloc( sizeof(access_sys_t) );
+ if( p_sys == NULL )
{
msg_Err( p_input, "out of memory" );
- free( psz_source );
- return -1;
+ free( psz_dup );
+ return VLC_EGENERIC;
}
- free( psz_source );
+ free( psz_dup );
- p_vcd->vcddev = vcddev;
- p_input->p_access_data = (void *)p_vcd;
+ p_sys->vcddev = vcddev;
+ p_input->p_access_data = (void *)p_sys;
p_input->i_mtu = VCD_DATA_ONCE;
vlc_mutex_unlock( &p_input->stream.stream_lock );
/* We read the Table Of Content information */
- p_vcd->i_nb_tracks = ioctl_GetTracksMap( VLC_OBJECT(p_input),
- p_vcd->vcddev, &p_vcd->p_sectors );
- if( p_vcd->i_nb_tracks < 0 )
+ p_sys->i_nb_tracks = ioctl_GetTracksMap( VLC_OBJECT(p_input),
+ p_sys->vcddev, &p_sys->p_sectors );
+ if( p_sys->i_nb_tracks < 0 )
msg_Err( p_input, "unable to count tracks" );
- else if( p_vcd->i_nb_tracks <= 1 )
+ else if( p_sys->i_nb_tracks <= 1 )
msg_Err( p_input, "no movie tracks found" );
- if( p_vcd->i_nb_tracks <= 1)
+ if( p_sys->i_nb_tracks <= 1)
{
- ioctl_Close( p_this, p_vcd->vcddev );
- free( p_vcd );
+ ioctl_Close( p_this, p_sys->vcddev );
+ free( p_sys );
return -1;
}
/* Allocate the entry points table */
- p_vcd->p_entries = malloc( p_vcd->i_nb_tracks * sizeof( int ) );
+ p_sys->p_entries = malloc( p_sys->i_nb_tracks * sizeof( int ) );
- if( p_vcd->p_entries == NULL )
+ if( p_sys->p_entries == NULL )
{
msg_Err( p_input, "not enough memory" );
- ioctl_Close( p_this, p_vcd->vcddev );
- free( p_vcd );
+ ioctl_Close( p_this, p_sys->vcddev );
+ free( p_sys );
}
/* Set stream and area data */
vlc_mutex_lock( &p_input->stream.stream_lock );
/* Initialize ES structures */
- input_InitStream( p_input, sizeof( stream_ps_data_t ) );
+ input_InitStream( p_input, 0 );
/* disc input method */
p_input->stream.i_method = INPUT_METHOD_VCD;
p_input->stream.i_area_nb = 1;
#define area p_input->stream.pp_areas
- for( i = 1 ; i < p_vcd->i_nb_tracks; i++ )
+ for( i = 1 ; i < p_sys->i_nb_tracks; i++ )
{
/* Titles are Program Chains */
input_AddArea( p_input, i, 1 );
/* Absolute start offset and size */
- area[i]->i_start = (off_t)p_vcd->p_sectors[i] * (off_t)VCD_DATA_SIZE;
- area[i]->i_size = (off_t)(p_vcd->p_sectors[i+1] - p_vcd->p_sectors[i])
+ area[i]->i_start = (off_t)p_sys->p_sectors[i] * (off_t)VCD_DATA_SIZE;
+ area[i]->i_size = (off_t)(p_sys->p_sectors[i+1] - p_sys->p_sectors[i])
* (off_t)VCD_DATA_SIZE;
/* Default Chapter */
}
#undef area
- p_area = p_input->stream.pp_areas[__MIN(i_title,p_vcd->i_nb_tracks -1)];
+ p_area = p_input->stream.pp_areas[__MIN(i_title,p_sys->i_nb_tracks -1)];
- p_vcd->b_valid_ep = 1;
+ p_sys->b_valid_ep = 1;
if( VCDEntryPoints( p_input ) < 0 )
{
msg_Warn( p_input, "could not read entry points, will not use them" );
- p_vcd->b_valid_ep = 0;
+ p_sys->b_valid_ep = 0;
}
VCDSetArea( p_input, p_area );
/*****************************************************************************
* VCDClose: closes vcd
*****************************************************************************/
-static void VCDClose( vlc_object_t *p_this )
+static void Close( vlc_object_t *p_this )
{
input_thread_t * p_input = (input_thread_t *)p_this;
- thread_vcd_data_t *p_vcd = (thread_vcd_data_t *)p_input->p_access_data;
+ access_sys_t *p_sys = p_input->p_access_data;
- ioctl_Close( p_this, p_vcd->vcddev );
- free( p_vcd );
+ ioctl_Close( p_this, p_sys->vcddev );
+ free( p_sys );
}
/*****************************************************************************
static int VCDRead( input_thread_t * p_input, byte_t * p_buffer,
size_t i_len )
{
- thread_vcd_data_t * p_vcd;
+ access_sys_t *p_sys;
int i_blocks;
int i_index;
int i_read;
byte_t p_last_sector[ VCD_DATA_SIZE ];
- p_vcd = (thread_vcd_data_t *)p_input->p_access_data;
+ p_sys = p_input->p_access_data;
i_read = 0;
for ( i_index = 0 ; i_index < i_blocks ; i_index++ )
{
- if ( ioctl_ReadSectors( VLC_OBJECT(p_input), p_vcd->vcddev,
- p_vcd->i_sector, p_buffer + i_index * VCD_DATA_SIZE, 1,
+ if ( ioctl_ReadSectors( VLC_OBJECT(p_input), p_sys->vcddev,
+ p_sys->i_sector, p_buffer + i_index * VCD_DATA_SIZE, 1,
VCD_TYPE ) < 0 )
{
- msg_Err( p_input, "could not read sector %d", p_vcd->i_sector );
+ msg_Err( p_input, "could not read sector %d", p_sys->i_sector );
return -1;
}
- p_vcd->i_sector ++;
- if ( p_vcd->i_sector == p_vcd->p_sectors[p_vcd->i_track + 1] )
+ p_sys->i_sector ++;
+ if ( p_sys->i_sector == p_sys->p_sectors[p_sys->i_track + 1] )
{
input_area_t *p_area;
- if ( p_vcd->i_track >= p_vcd->i_nb_tracks - 1 )
+ if ( p_sys->i_track >= p_sys->i_nb_tracks - 1 )
return 0; /* EOF */
vlc_mutex_lock( &p_input->stream.stream_lock );
}
/* Update chapter */
- else if( p_vcd->b_valid_ep &&
+ else if( p_sys->b_valid_ep &&
/* FIXME kludge so that read does not update chapter
* when a manual chapter change was requested and not
* yet accomplished */
i_entry = p_input->stream.p_selected_area->i_plugin_data
/* 1st entry point of the track (area)*/
+ p_input->stream.p_selected_area->i_part - 1;
- if( i_entry + 1 < p_vcd->i_entries_nb &&
- p_vcd->i_sector >= p_vcd->p_entries[i_entry + 1] )
+ if( i_entry + 1 < p_sys->i_entries_nb &&
+ p_sys->i_sector >= p_sys->p_entries[i_entry + 1] )
{
vlc_value_t val;
if ( i_len % VCD_DATA_SIZE ) /* this should not happen */
{
- if ( ioctl_ReadSectors( VLC_OBJECT(p_input), p_vcd->vcddev,
- p_vcd->i_sector, p_last_sector, 1, VCD_TYPE ) < 0 )
+ if ( ioctl_ReadSectors( VLC_OBJECT(p_input), p_sys->vcddev,
+ p_sys->i_sector, p_last_sector, 1, VCD_TYPE ) < 0 )
{
- msg_Err( p_input, "could not read sector %d", p_vcd->i_sector );
+ msg_Err( p_input, "could not read sector %d", p_sys->i_sector );
return -1;
}
****************************************************************************/
static int VCDSetArea( input_thread_t * p_input, input_area_t * p_area )
{
- thread_vcd_data_t * p_vcd;
+ access_sys_t *p_sys = p_input->p_access_data;
vlc_value_t val;
- p_vcd = (thread_vcd_data_t*)p_input->p_access_data;
-
/* we can't use the interface slider until initilization is complete */
p_input->stream.b_seekable = 0;
/* Change the current track */
/* The first track is not a valid one */
- p_vcd->i_track = p_area->i_id;
- p_vcd->i_sector = p_vcd->p_sectors[p_vcd->i_track];
+ p_sys->i_track = p_area->i_id;
+ p_sys->i_sector = p_sys->p_sectors[p_sys->i_track];
/* Update the navigation variables without triggering a callback */
val.i_int = p_area->i_id;
}
}
- if( p_vcd->b_valid_ep )
+ if( p_sys->b_valid_ep )
{
int i_entry = p_area->i_plugin_data /* 1st entry point of
the track (area)*/
+ p_area->i_part - 1;
- p_vcd->i_sector = p_vcd->p_entries[i_entry];
+ p_sys->i_sector = p_sys->p_entries[i_entry];
}
else
- p_vcd->i_sector = p_vcd->p_sectors[p_vcd->i_track];
+ p_sys->i_sector = p_sys->p_sectors[p_sys->i_track];
p_input->stream.p_selected_area->i_tell =
- (off_t)p_vcd->i_sector * (off_t)VCD_DATA_SIZE
+ (off_t)p_sys->i_sector * (off_t)VCD_DATA_SIZE
- p_input->stream.p_selected_area->i_start;
/* warn interface that something has changed */
****************************************************************************/
static void VCDSeek( input_thread_t * p_input, off_t i_off )
{
- thread_vcd_data_t * p_vcd;
+ access_sys_t * p_sys = p_input->p_access_data;
unsigned int i_index;
- p_vcd = (thread_vcd_data_t *) p_input->p_access_data;
-
- p_vcd->i_sector = p_vcd->p_sectors[p_vcd->i_track]
+ p_sys->i_sector = p_sys->p_sectors[p_sys->i_track]
+ i_off / (off_t)VCD_DATA_SIZE;
vlc_mutex_lock( &p_input->stream.stream_lock );
#define p_area p_input->stream.p_selected_area
/* Find chapter */
- if( p_vcd->b_valid_ep )
+ if( p_sys->b_valid_ep )
{
for( i_index = 2 ; i_index <= p_area->i_part_nb; i_index ++ )
{
- if( p_vcd->i_sector < p_vcd->p_entries[p_area->i_plugin_data
+ if( p_sys->i_sector < p_sys->p_entries[p_area->i_plugin_data
+ i_index - 1] )
{
vlc_value_t val;
#undef p_area
p_input->stream.p_selected_area->i_tell =
- (off_t)p_vcd->i_sector * (off_t)VCD_DATA_SIZE
+ (off_t)p_sys->i_sector * (off_t)VCD_DATA_SIZE
- p_input->stream.p_selected_area->i_start;
vlc_mutex_unlock( &p_input->stream.stream_lock );
}
*****************************************************************************/
static int VCDEntryPoints( input_thread_t * p_input )
{
- thread_vcd_data_t * p_vcd;
+ access_sys_t * p_sys = p_input->p_access_data;
byte_t * p_sector;
entries_sect_t entries;
uint16_t i_nb;
int i, i_entry_index = 0;
int i_previous_track = -1;
- p_vcd = (thread_vcd_data_t *) p_input->p_access_data;
-
p_sector = malloc( VCD_DATA_SIZE * sizeof( byte_t ) );
if( p_sector == NULL )
{
return -1;
}
- if( ioctl_ReadSectors( VLC_OBJECT(p_input), p_vcd->vcddev,
+ if( ioctl_ReadSectors( VLC_OBJECT(p_input), p_sys->vcddev,
VCD_ENTRIES_SECTOR, p_sector, 1, VCD_TYPE ) < 0 )
{
msg_Err( p_input, "could not read entry points sector" );
return( -1 );
}
- p_vcd->p_entries = malloc( sizeof( int ) * i_nb );
- if( p_vcd->p_entries == NULL )
+ p_sys->p_entries = malloc( sizeof( int ) * i_nb );
+ if( p_sys->p_entries == NULL )
{
msg_Err( p_input, "not enough memory for entry points treatment" );
return -1;
&& strncmp( entries.psz_id, "ENTRYSVD", sizeof( entries.psz_id ) ))
{
msg_Err( p_input, "unrecognized entry points format" );
- free( p_vcd->p_entries );
+ free( p_sys->p_entries );
return -1;
}
- p_vcd->i_entries_nb = 0;
+ p_sys->i_entries_nb = 0;
#define i_track BCD_TO_BIN(entries.entry[i].i_track)
/* Reset the i_part_nb for each track */
{
if( i_track <= p_input->stream.i_area_nb )
{
- p_vcd->p_entries[i_entry_index] =
+ p_sys->p_entries[i_entry_index] =
(MSF_TO_LBA2( BCD_TO_BIN( entries.entry[i].msf.minute ),
BCD_TO_BIN( entries.entry[i].msf.second ),
BCD_TO_BIN( entries.entry[i].msf.frame ) ));
i_previous_track = i_track;
}
msg_Dbg( p_input, "entry point %i begins at LBA: %i",
- i_entry_index, p_vcd->p_entries[i_entry_index] );
+ i_entry_index, p_sys->p_entries[i_entry_index] );
i_entry_index ++;
- p_vcd->i_entries_nb ++;
+ p_sys->i_entries_nb ++;
}
else
msg_Warn( p_input, "wrong track number found in entry points" );
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