/*****************************************************************************
* vcd.c : VCD input module for vlc
*****************************************************************************
- * Copyright (C) 2000 VideoLAN
- * $Id: vcd.c,v 1.3 2002/08/08 00:35:10 sam Exp $
+ * Copyright (C) 2000-2004 VideoLAN
+ * $Id$
*
* Author: Johan Bilien <jobi@via.ecp.fr>
*
* 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
/*****************************************************************************
* Preamble
*****************************************************************************/
-#include <stdio.h>
#include <stdlib.h>
#include <vlc/vlc.h>
#include <vlc/input.h>
-#include "../../demux/mpeg/system.h"
-
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#endif
+#include "cdrom.h"
-#include <fcntl.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <string.h>
-#include <errno.h>
+/*****************************************************************************
+ * Module descriptior
+ *****************************************************************************/
+static int Open ( vlc_object_t * );
+static void Close( vlc_object_t * );
-#if defined( WIN32 )
-# include <io.h> /* read() */
-#else
-# include <sys/uio.h> /* struct iovec */
-#endif
+#define CACHING_TEXT N_("Caching value in ms")
+#define CACHING_LONGTEXT N_( \
+ "Allows you to modify the default caching value for cdda streams. This " \
+ "value should be set in milliseconds units." )
-#if defined( WIN32 )
-# include "input_iovec.h"
-#endif
+vlc_module_begin();
+ set_description( _("VCD input") );
+ set_capability( "access2", 60 );
+ set_callbacks( Open, Close );
+
+ add_usage_hint( N_("[vcd:][device][@[title][,[chapter]]]") );
+ add_integer( "vcd-caching", DEFAULT_PTS_DELAY / 1000, NULL, CACHING_TEXT,
+ CACHING_LONGTEXT, VLC_TRUE );
+ add_shortcut( "vcd" );
+ add_shortcut( "svcd" );
+vlc_module_end();
-#include "vcd.h"
-#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)
-/*****************************************************************************
- * 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 * );
+struct access_sys_t
+{
+ vcddev_t *vcddev; /* vcd device descriptor */
-/*****************************************************************************
- * Module descriptior
- *****************************************************************************/
-vlc_module_begin();
- set_description( _("VCD input module") );
- set_capability( "access", 80 );
- set_callbacks( VCDOpen, VCDClose );
- add_shortcut( "svcd" );
-vlc_module_end();
+ /* Title infos */
+ int i_titles;
+ input_title_t *title[99]; /* No more that 99 track in a vcd ? */
+
+
+ int i_sector; /* Current Sector */
+ int *p_sectors; /* Track sectors */
+};
-/*
- * Data reading functions
- */
+static block_t *Block( access_t * );
+static int Seek( access_t *, int64_t );
+static int Control( access_t *, int, va_list );
+static int EntryPoints( access_t * );
/*****************************************************************************
* 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;
- struct stat stat_info;
- thread_vcd_data_t * p_vcd;
- int i;
- input_area_t * p_area;
- int i_title = 1;
- int i_chapter = 1;
-
- p_input->pf_read = VCDRead;
- p_input->pf_seek = VCDSeek;
- p_input->pf_set_area = VCDSetArea;
- p_input->pf_set_program = VCDSetProgram;
-
- /* parse the options passed in command line : */
- psz_orig = psz_parser = psz_source = strdup( p_input->psz_name );
-
- if( !psz_orig )
+ access_t *p_access = (access_t *)p_this;
+ access_sys_t *p_sys;
+ char *psz_dup = strdup( p_access->psz_path );
+ char *psz;
+ int i_title = 0;
+ int i_chapter = 0;
+ int i;
+ vcddev_t *vcddev;
+
+ /* Command line: vcd://[dev_path][@title[,chapter]] */
+ if( ( psz = strchr( psz_dup, '@' ) ) )
{
- return( -1 );
- }
-
- while( *psz_parser && *psz_parser != '@' )
- {
- psz_parser++;
+ *psz++ = '\0';
+
+ i_title = strtol( psz, &psz, 0 );
+ if( *psz )
+ i_chapter = strtol( psz+1, &psz, 0 );
}
- if( *psz_parser == '@' )
+ if( *psz_dup == '\0' )
{
- /* Found options */
- *psz_parser = '\0';
- ++psz_parser;
+ free( psz_dup );
+
+ /* Only when selected */
+ if( strcmp( p_access->psz_access, "vcd" ) &&
+ strcmp( p_access->psz_access, "svcd" ) )
+ return VLC_EGENERIC;
- i_title = (int)strtol( psz_parser, &psz_next, 10 );
- if( *psz_next )
+ psz_dup = var_CreateGetString( p_access, "vcd" );
+ if( *psz_dup == '\0' )
{
- psz_parser = psz_next + 1;
- i_chapter = (int)strtol( psz_parser, &psz_next, 10 );
+ free( psz_dup );
+ return VLC_EGENERIC;
}
-
- i_title = i_title ? i_title : 1;
- i_chapter = i_chapter ? i_chapter : 1;
}
- if( !*psz_source )
+ /* Open VCD */
+ if( !(vcddev = ioctl_Open( p_this, psz_dup )) )
{
- if( !p_input->psz_access )
- {
- free( psz_orig );
- return -1;
- }
- psz_source = config_GetPsz( p_input, "vcd" );
+ msg_Warn( p_access, "could not open %s", psz_dup );
+ free( psz_dup );
+ return VLC_EGENERIC;
}
+ free( psz_dup );
+
+ /* Set up p_access */
+ p_access->pf_read = NULL;
+ p_access->pf_block = Block;
+ p_access->pf_control = Control;
+ p_access->pf_seek = Seek;
+ p_access->info.i_update = 0;
+ p_access->info.i_size = 0;
+ p_access->info.i_pos = 0;
+ p_access->info.b_eof = VLC_FALSE;
+ p_access->info.i_title = 0;
+ p_access->info.i_seekpoint = 0;
+ p_access->p_sys = p_sys = malloc( sizeof( access_sys_t ) );
+ memset( p_sys, 0, sizeof( access_sys_t ) );
+ p_sys->vcddev = vcddev;
- /* test the type of file given */
-
- if( stat( psz_source, &stat_info ) == -1 )
+ /* We read the Table Of Content information */
+ p_sys->i_titles = ioctl_GetTracksMap( VLC_OBJECT(p_access),
+ p_sys->vcddev, &p_sys->p_sectors );
+ if( p_sys->i_titles < 0 )
{
- msg_Err( p_input, "cannot stat() source `%s' (%s)",
- psz_source, strerror(errno));
- return( -1 );
+ msg_Err( p_access, "unable to count tracks" );
+ goto error;
}
-
- if( !S_ISBLK(stat_info.st_mode) && !S_ISCHR(stat_info.st_mode))
+ else if( p_sys->i_titles <= 1 )
{
- msg_Warn( p_input, "vcd module discarded (not a valid drive)" );
- return -1;
+ msg_Err( p_access, "no movie tracks found" );
+ goto error;
}
-
-
- p_vcd = malloc( sizeof(thread_vcd_data_t) );
+ /* The first title isn't usable */
+ p_sys->i_titles--;
- if( p_vcd == NULL )
+ /* Build title table */
+ for( i = 0; i < p_sys->i_titles; i++ )
{
- msg_Err( p_input, "out of memory" );
- return -1;
- }
-
- p_input->p_access_data = (void *)p_vcd;
-
- p_input->i_mtu = VCD_DATA_ONCE;
-
- vlc_mutex_lock( &p_input->stream.stream_lock );
-
- p_input->stream.b_pace_control = 1;
+ input_title_t *t = p_sys->title[i] = vlc_input_title_New();
- p_input->stream.b_seekable = 1;
- p_input->stream.p_selected_area->i_size = 0;
- p_input->stream.p_selected_area->i_tell = 0;
+ fprintf( stderr, "title[%d] start=%d\n", i, p_sys->p_sectors[1+i] );
+ fprintf( stderr, "title[%d] end=%d\n", i, p_sys->p_sectors[i+2] );
- vlc_mutex_unlock( &p_input->stream.stream_lock );
-
- p_vcd->i_handle = open( psz_source, O_RDONLY | O_NONBLOCK );
-
- if( p_vcd->i_handle == -1 )
- {
- msg_Err( p_input, "could not open %s\n", psz_source );
- free (p_vcd);
- return -1;
+ t->i_size = ( p_sys->p_sectors[i+2] - p_sys->p_sectors[i+1] ) *
+ (int64_t)VCD_DATA_SIZE;
}
- /* We read the Table Of Content information */
- p_vcd->nb_tracks = ioctl_GetTrackCount( p_vcd->i_handle,
- psz_source );
- if( p_vcd->nb_tracks < 0 )
- {
- msg_Err( p_input, "unable to count tracks" );
- close( p_vcd->i_handle );
- free( p_vcd );
- return -1;
- }
- else if( p_vcd->nb_tracks <= 1 )
- {
- msg_Err( p_input, "no movie tracks found" );
- close( p_vcd->i_handle );
- free( p_vcd );
- return -1;
- }
-
- p_vcd->p_sectors = ioctl_GetSectors( p_vcd->i_handle,
- psz_source );
- if( p_vcd->p_sectors == NULL )
+ /* Map entry points into chapters */
+ if( EntryPoints( p_access ) )
{
- input_BuffersEnd( p_input, p_input->p_method_data );
- close( p_vcd->i_handle );
- free( p_vcd );
- return -1;
+ msg_Warn( p_access, "could not read entry points, will not use them" );
}
- /* Set stream and area data */
- vlc_mutex_lock( &p_input->stream.stream_lock );
+ /* Starting title/chapter and sector */
+ if( i_title >= p_sys->i_titles )
+ i_title = 0;
+ if( i_chapter >= p_sys->title[i_title]->i_seekpoint )
+ i_chapter = 0;
- /* Initialize ES structures */
- input_InitStream( p_input, sizeof( stream_ps_data_t ) );
-
- /* disc input method */
- p_input->stream.i_method = INPUT_METHOD_VCD;
-
-#define area p_input->stream.pp_areas
- for( i = 1 ; i <= p_vcd->nb_tracks - 1 ; i++ )
+ p_sys->i_sector = p_sys->p_sectors[1+i_title];
+ if( i_chapter > 0 )
{
- input_AddArea( p_input );
-
- /* Titles are Program Chains */
- area[i]->i_id = i;
-
- /* 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])
- * (off_t)VCD_DATA_SIZE;
-
- /* Number of chapters */
- area[i]->i_part_nb = 0; /* will be the entry points */
- area[i]->i_part = 1;
-
- area[i]->i_plugin_data = p_vcd->p_sectors[i];
+ p_sys->i_sector +=
+ ( p_sys->title[i_title]->seekpoint[i_chapter]->i_byte_offset /
+ VCD_DATA_SIZE );
}
-#undef area
+ p_access->info.i_title = i_title;
+ p_access->info.i_seekpoint = i_chapter;
+ p_access->info.i_size = p_sys->title[i_title]->i_size;
+ p_access->info.i_pos = ( p_sys->i_sector - p_sys->p_sectors[1+i_title] ) *
+ VCD_DATA_SIZE;
- p_area = p_input->stream.pp_areas[i_title];
+ p_access->psz_demux = strdup( "ps" );
- VCDSetArea( p_input, p_area );
+ return VLC_SUCCESS;
- vlc_mutex_unlock( &p_input->stream.stream_lock );
-
- p_input->psz_demux = "ps";
-
- return 0;
+error:
+ ioctl_Close( VLC_OBJECT(p_access), p_sys->vcddev );
+ free( p_sys );
+ return VLC_EGENERIC;
}
/*****************************************************************************
- * VCDClose: closes vcd
+ * Close: 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_t *p_access = (access_t *)p_this;
+ access_sys_t *p_sys = p_access->p_sys;
- close( p_vcd->i_handle );
- free( p_vcd );
+ ioctl_Close( p_this, p_sys->vcddev );
+ free( p_sys );
}
/*****************************************************************************
- * VCDRead: reads from the VCD into PES packets.
- *****************************************************************************
- * Returns -1 in case of error, 0 in case of EOF, otherwise the number of
- * bytes.
+ * Control:
*****************************************************************************/
-static int VCDRead( input_thread_t * p_input, byte_t * p_buffer,
- size_t i_len )
+static int Control( access_t *p_access, int i_query, va_list args )
{
- thread_vcd_data_t * p_vcd;
- int i_blocks;
- int i_index;
- int i_read;
- byte_t p_last_sector[ VCD_DATA_SIZE ];
+ access_sys_t *p_sys = p_access->p_sys;
+ vlc_bool_t *pb_bool;
+ int *pi_int;
+ int64_t *pi_64;
+ input_title_t ***ppp_title;
+ int i;
+
+ switch( i_query )
+ {
+ /* */
+ case ACCESS_CAN_SEEK:
+ case ACCESS_CAN_FASTSEEK:
+ case ACCESS_CAN_PAUSE:
+ case ACCESS_CAN_CONTROL_PACE:
+ pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
+ *pb_bool = VLC_TRUE;
+ break;
+
+ /* */
+ case ACCESS_GET_MTU:
+ pi_int = (int*)va_arg( args, int * );
+ *pi_int = VCD_DATA_ONCE;
+ break;
+
+ case ACCESS_GET_PTS_DELAY:
+ pi_64 = (int64_t*)va_arg( args, int64_t * );
+ *pi_64 = var_GetInteger( p_access, "vcd-caching" ) * 1000;
+ break;
+
+ /* */
+ case ACCESS_SET_PAUSE_STATE:
+ break;
+
+ case ACCESS_GET_TITLE_INFO:
+ ppp_title = (input_title_t***)va_arg( args, input_title_t*** );
+ pi_int = (int*)va_arg( args, int* );
+
+ /* Duplicate title infos */
+ *pi_int = p_sys->i_titles;
+ *ppp_title = malloc( sizeof(input_title_t **) * p_sys->i_titles );
+ for( i = 0; i < p_sys->i_titles; i++ )
+ {
+ (*ppp_title)[i] = vlc_input_title_Duplicate( p_sys->title[i] );
+ }
+ break;
+
+ case ACCESS_SET_TITLE:
+ i = (int)va_arg( args, int );
+ if( i != p_access->info.i_title )
+ {
+ /* Update info */
+ p_access->info.i_update |=
+ INPUT_UPDATE_TITLE|INPUT_UPDATE_SEEKPOINT|INPUT_UPDATE_SIZE;
+ p_access->info.i_title = i;
+ p_access->info.i_seekpoint = 0;
+ p_access->info.i_size = p_sys->title[i]->i_size;
+ p_access->info.i_pos = 0;
+
+ /* Next sector to read */
+ p_sys->i_sector = p_sys->p_sectors[1+i];
+ }
+ break;
+
+ case ACCESS_SET_SEEKPOINT:
+ {
+ input_title_t *t = p_sys->title[p_access->info.i_title];
+ i = (int)va_arg( args, int );
+ if( t->i_seekpoint > 0 )
+ {
+ p_access->info.i_update |= INPUT_UPDATE_SEEKPOINT;
+ p_access->info.i_seekpoint = i;
+
+ p_sys->i_sector = p_sys->p_sectors[1+p_access->info.i_title] +
+ t->seekpoint[i]->i_byte_offset / VCD_DATA_SIZE;
+
+ p_access->info.i_pos = (int64_t)(p_sys->i_sector -
+ p_sys->p_sectors[1+p_access->info.i_title]) *VCD_DATA_SIZE;
+ }
+ return VLC_SUCCESS;
+ }
- p_vcd = (thread_vcd_data_t *)p_input->p_access_data;
+ case ACCESS_SET_PRIVATE_ID_STATE:
+ return VLC_EGENERIC;
- i_read = 0;
+ default:
+ msg_Warn( p_access, "unimplemented query in control" );
+ return VLC_EGENERIC;
- /* Compute the number of blocks we have to read */
+ }
+ return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ * Block:
+ *****************************************************************************/
+static block_t *Block( access_t *p_access )
+{
+ access_sys_t *p_sys = p_access->p_sys;
+ int i_blocks = VCD_BLOCKS_ONCE;
+ block_t *p_block;
+ int i_read;
- i_blocks = i_len / VCD_DATA_SIZE;
+ /* Check end of file */
+ if( p_access->info.b_eof ) return NULL;
- for ( i_index = 0 ; i_index < i_blocks ; i_index++ )
+ /* Check end of title */
+ while( p_sys->i_sector >= p_sys->p_sectors[p_access->info.i_title + 2] )
{
- if ( ioctl_ReadSector( p_vcd->i_handle, p_vcd->i_sector,
- p_buffer + i_index * VCD_DATA_SIZE ) < 0 )
+ if( p_access->info.i_title + 2 >= p_sys->i_titles )
{
- msg_Err( p_input, "could not read sector %d", p_vcd->i_sector );
- return -1;
+ p_access->info.b_eof = VLC_TRUE;
+ return NULL;
}
- p_vcd->i_sector ++;
- if ( p_vcd->i_sector == p_vcd->p_sectors[p_vcd->i_track + 1] )
- {
- input_area_t *p_area;
-
- if ( p_vcd->i_track >= p_vcd->nb_tracks - 1 )
- return 0; /* EOF */
-
- p_area = p_input->stream.pp_areas[
- p_input->stream.p_selected_area->i_id + 1 ];
-
- msg_Dbg( p_input, "new title" );
-
- p_area->i_part = 1;
- VCDSetArea( p_input, p_area );
-
- }
- i_read += VCD_DATA_SIZE;
+ p_access->info.i_update |=
+ INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT | INPUT_UPDATE_SIZE;
+ p_access->info.i_title++;
+ p_access->info.i_seekpoint = 0;
+ p_access->info.i_size =
+ p_sys->title[p_access->info.i_title]->i_size;
+ p_access->info.i_pos = 0;
+ }
+
+ /* Don't read after the end of a title */
+ if( p_sys->i_sector + i_blocks >=
+ p_sys->p_sectors[p_access->info.i_title + 2] )
+ {
+ i_blocks = p_sys->p_sectors[p_access->info.i_title + 2 ] -
+ p_sys->i_sector;
+ }
+
+ /* Do the actual reading */
+ if( !( p_block = block_New( p_access, i_blocks * VCD_DATA_SIZE ) ) )
+ {
+ msg_Err( p_access, "cannot get a new block of size: %i",
+ i_blocks * VCD_DATA_SIZE );
+ return NULL;
+ }
+
+ if( ioctl_ReadSectors( VLC_OBJECT(p_access), p_sys->vcddev,
+ p_sys->i_sector, p_block->p_buffer, i_blocks, VCD_TYPE ) < 0 )
+ {
+ msg_Err( p_access, "cannot read sector %i", p_sys->i_sector );
+ block_Release( p_block );
+
+ /* Try to skip one sector (in case of bad sectors) */
+ p_sys->i_sector++;
+ p_access->info.i_pos += VCD_DATA_SIZE;
+ return NULL;
}
-
- if ( i_len % VCD_DATA_SIZE ) /* this should not happen */
- {
- if ( ioctl_ReadSector( p_vcd->i_handle, p_vcd->i_sector,
- p_last_sector ) < 0 )
+
+ /* Update seekpoints */
+ for( i_read = 0; i_read < i_blocks; i_read++ )
+ {
+ input_title_t *t = p_sys->title[p_access->info.i_title];
+
+ if( t->i_seekpoint > 0 &&
+ p_access->info.i_seekpoint + 1 < t->i_seekpoint &&
+ p_access->info.i_pos + i_read * VCD_DATA_SIZE >=
+ t->seekpoint[p_access->info.i_seekpoint+1]->i_byte_offset )
{
- msg_Err( p_input, "could not read sector %d", p_vcd->i_sector );
- return -1;
+ msg_Dbg( p_access, "seekpoint change" );
+ p_access->info.i_update |= INPUT_UPDATE_SEEKPOINT;
+ p_access->info.i_seekpoint++;
}
-
- p_input->p_vlc->pf_memcpy( p_buffer + i_blocks * VCD_DATA_SIZE,
- p_last_sector, i_len % VCD_DATA_SIZE );
- i_read += i_len % VCD_DATA_SIZE;
}
-
- p_input->stream.p_selected_area->i_tell =
- (off_t)p_vcd->i_sector * (off_t)VCD_DATA_SIZE
- - p_input->stream.p_selected_area->i_start;
- return i_read;
-}
+ /* Update a few values */
+ p_sys->i_sector += i_blocks;
+ p_access->info.i_pos += p_block->i_buffer;
+ return p_block;
+}
/*****************************************************************************
- * VCDSetProgram: Does nothing since a VCD is mono_program
+ * Seek:
*****************************************************************************/
-static int VCDSetProgram( input_thread_t * p_input,
- pgrm_descriptor_t * p_program)
+static int Seek( access_t *p_access, int64_t i_pos )
{
- return 0;
-}
+ access_sys_t *p_sys = p_access->p_sys;
+ input_title_t *t = p_sys->title[p_access->info.i_title];
+ int i_seekpoint;
+
+ /* Next sector to read */
+ p_access->info.i_pos = i_pos;
+ p_sys->i_sector = i_pos / VCD_DATA_SIZE +
+ p_sys->p_sectors[p_access->info.i_title + 1];
+
+ /* Update current seekpoint */
+ for( i_seekpoint = 0; i_seekpoint < t->i_seekpoint; i_seekpoint++ )
+ {
+ if( i_seekpoint + 1 >= t->i_seekpoint ) break;
+ if( i_pos < t->seekpoint[i_seekpoint + 1]->i_byte_offset ) break;
+ }
+
+ if( i_seekpoint != p_access->info.i_seekpoint )
+ {
+ msg_Dbg( p_access, "seekpoint change" );
+ p_access->info.i_update |= INPUT_UPDATE_SEEKPOINT;
+ p_access->info.i_seekpoint = i_seekpoint;
+ }
+ return VLC_SUCCESS;
+}
/*****************************************************************************
- * VCDSetArea: initialize input data for title x, chapter y.
- * It should be called for each user navigation request.
- ****************************************************************************/
-static int VCDSetArea( input_thread_t * p_input, input_area_t * p_area )
+ * EntryPoints: Reads the information about the entry points on the disc.
+ *****************************************************************************/
+static int EntryPoints( access_t *p_access )
{
- thread_vcd_data_t * p_vcd;
-
- p_vcd = (thread_vcd_data_t*)p_input->p_access_data;
+ access_sys_t *p_sys = p_access->p_sys;
+ uint8_t sector[VCD_DATA_SIZE];
- /* we can't use the interface slider until initilization is complete */
- p_input->stream.b_seekable = 0;
+ entries_sect_t entries;
+ int i_nb, i;
- if( p_area != p_input->stream.p_selected_area )
+ /* Read the entry point sector */
+ if( ioctl_ReadSectors( VLC_OBJECT(p_access), p_sys->vcddev,
+ VCD_ENTRIES_SECTOR, sector, 1, VCD_TYPE ) < 0 )
{
- /* Reset the Chapter position of the current title */
- p_input->stream.p_selected_area->i_part = 1;
- p_input->stream.p_selected_area->i_tell = 0;
-
- /* Change the default area */
- p_input->stream.p_selected_area = p_area;
+ msg_Err( p_access, "could not read entry points sector" );
+ return VLC_EGENERIC;
+ }
+ memcpy( &entries, sector, CD_SECTOR_SIZE );
- /* 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];
+ i_nb = GetWBE( &entries.i_entries_nb );
+ if( i_nb > 500 )
+ {
+ msg_Err( p_access, "invalid entry points number" );
+ return VLC_EGENERIC;
}
- /* warn interface that something has changed */
- p_input->stream.b_seekable = 1;
- p_input->stream.b_changed = 1;
+ if( strncmp( entries.psz_id, "ENTRYVCD", sizeof( entries.psz_id ) ) &&
+ strncmp( entries.psz_id, "ENTRYSVD", sizeof( entries.psz_id ) ) )
+ {
+ msg_Err( p_access, "unrecognized entry points format" );
+ return VLC_EGENERIC;
+ }
- return 0;
-}
+ for( i = 0; i < i_nb; i++ )
+ {
+ const int i_title = BCD_TO_BIN(entries.entry[i].i_track) - 2;
+ const int i_sector =
+ (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 ) ));
+ seekpoint_t *s;
+ if( i_title < 0 ) continue; /* Should not occur */
+ if( i_title >= p_sys->i_titles ) continue;
-/****************************************************************************
- * VCDSeek
- ****************************************************************************/
-static void VCDSeek( input_thread_t * p_input, off_t i_off )
-{
- thread_vcd_data_t * p_vcd;
+ msg_Dbg( p_access, "Entry[%d] title=%d sector=%d\n",
+ i, i_title, i_sector );
- p_vcd = (thread_vcd_data_t *) p_input->p_access_data;
+ s = vlc_seekpoint_New();
+ s->i_byte_offset = (i_sector - p_sys->p_sectors[i_title+1]) *
+ VCD_DATA_SIZE;
- p_vcd->i_sector = p_vcd->p_sectors[p_vcd->i_track]
- + i_off / (off_t)VCD_DATA_SIZE;
+ TAB_APPEND( p_sys->title[i_title]->i_seekpoint,
+ p_sys->title[i_title]->seekpoint, s );
+ }
- p_input->stream.p_selected_area->i_tell =
- (off_t)p_vcd->i_sector * (off_t)VCD_DATA_SIZE
- - p_input->stream.p_selected_area->i_start;
+ return VLC_SUCCESS;
}
projects / vlc / blobdiff