Commit 12077fd1 authored by Rocky Bernstein's avatar Rocky Bernstein

Improve entry navigation and title update.

Next/Prev chapter don't work yet, nor does entry detection when random
seeking.
parent 6ba6c14f
/*****************************************************************************
* vcd.c : VCD input module for vlc
* using libcdio, libvcd and libvcdinfo. vlc-specific things tend
* to go here.
* vcd.c : VCD input module for vlc using libcdio, libvcd and libvcdinfo.
* vlc-specific things tend to go here.
*****************************************************************************
* Copyright (C) 2000, 2003, 2004 VideoLAN
* $Id$
*
* Authors: Rocky Bernstein <rocky@panix.com>
* Some code is based on the non-libcdio VCD plugin (as there really
* isn't real documentation yet.)
* isn't real developer documentation yet on how to write a
* navigable plugin.)
*
* 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
......@@ -154,7 +154,6 @@ VCDReadBlock( access_t * p_access )
access_vcd_data_t * p_vcd= (access_vcd_data_t *)p_access->p_sys;
block_t *p_block;
int i_blocks = VCD_BLOCKS_ONCE;
int i_index;
int i_read;
byte_t p_last_sector[ M2F2_SECTOR_SIZE ];
......@@ -176,7 +175,7 @@ VCDReadBlock( access_t * p_access )
return NULL;
}
for ( i_index = 0 ; i_index < i_blocks ; i_index++ )
for ( i_read = 0 ; i_read < i_blocks ; i_read++ )
{
if ( p_vcd->i_lsn == p_vcd->end_lsn ) {
......@@ -203,7 +202,7 @@ VCDReadBlock( access_t * p_access )
/* Reached the end of a still frame. */
byte_t * p_buf = (byte_t *) p_block->p_buffer;
p_buf += (i_index*M2F2_SECTOR_SIZE);
p_buf += (i_read*M2F2_SECTOR_SIZE);
memset(p_buf, 0, M2F2_SECTOR_SIZE);
p_buf += 2;
*p_buf = 0x01;
......@@ -223,7 +222,7 @@ VCDReadBlock( access_t * p_access )
if ( VCDReadSector( VLC_OBJECT(p_access), p_vcd->vcd,
p_vcd->i_lsn,
(byte_t *) p_block->p_buffer
+ (i_index*M2F2_SECTOR_SIZE) ) < 0 )
+ (i_read*M2F2_SECTOR_SIZE) ) < 0 )
{
LOG_ERR ("could not read sector %lu",
(long unsigned int) p_vcd->i_lsn );
......@@ -239,26 +238,23 @@ VCDReadBlock( access_t * p_access )
/* Update seekpoint */
if ( VCDINFO_ITEM_TYPE_ENTRY == p_vcd->play_item.type )
{
const input_title_t *t = p_vcd->p_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 * M2F2_SECTOR_SIZE >=
t->seekpoint[p_access->info.i_seekpoint+1]->i_byte_offset )
unsigned int i_entry = p_vcd->play_item.num+1;
if (p_vcd->i_lsn >= vcdinfo_get_entry_lba(p_vcd->vcd, i_entry))
{
const track_t i_track = p_vcd->i_track;
const unsigned int i_entry = ++p_vcd->play_item.num;
msg_Dbg( p_access, "seekpoint change" );
p_vcd->play_item.num = i_entry;
dbg_print( (INPUT_DBG_LSN|INPUT_DBG_PBC), "entry change" );
VCDSetOrigin( p_access,
vcdinfo_get_track_lsn(p_vcd->vcd, i_track),
vcdinfo_get_entry_lsn(p_vcd->vcd, i_entry),
vcdinfo_get_track_lsn(p_vcd->vcd, i_track+1),
vcdinfo_get_track_lba(p_vcd->vcd, i_track),
vcdinfo_get_entry_lba(p_vcd->vcd, i_entry),
vcdinfo_get_track_lba(p_vcd->vcd, i_track+1),
i_track, &(p_vcd->play_item) );
}
}
}
if ( i_index != i_blocks ) /* this should not happen */
if ( i_read != i_blocks ) /* this should not happen */
{
if ( VCDReadSector( VLC_OBJECT(p_access), p_vcd->vcd,
p_vcd->i_lsn, p_last_sector ) < 0 )
......@@ -311,6 +307,12 @@ VCDSeek( access_t * p_access, int64_t i_pos )
p_vcd->play_item.type = VCDINFO_ITEM_TYPE_ENTRY;
}
dbg_print( (INPUT_DBG_CALL|INPUT_DBG_EXT|INPUT_DBG_SEEK),
"orig %lu, cur: %lu, offset: %lld, entry %d",
(long unsigned int) p_vcd->origin_lsn,
(long unsigned int) p_vcd->i_lsn, i_pos,
i_entry );
/* Find seekpoint */
for( i_seekpoint = 0; i_seekpoint < t->i_seekpoint; i_seekpoint++ )
{
......@@ -321,17 +323,12 @@ VCDSeek( access_t * p_access, int64_t i_pos )
/* Update current seekpoint */
if( i_seekpoint != p_access->info.i_seekpoint )
{
msg_Dbg( p_access, "seekpoint change" );
dbg_print( (INPUT_DBG_SEEK), "seekpoint change %lu",
(long unsigned int) i_seekpoint );
p_access->info.i_update |= INPUT_UPDATE_SEEKPOINT;
p_access->info.i_seekpoint = i_seekpoint;
}
dbg_print( (INPUT_DBG_CALL|INPUT_DBG_EXT|INPUT_DBG_SEEK),
"orig %lu, cur: %lu, offset: %lld, entry %d",
(long unsigned int) p_vcd->origin_lsn,
(long unsigned int) p_vcd->i_lsn, i_pos,
i_entry );
}
return VLC_SUCCESS;
......@@ -367,18 +364,17 @@ VCDPlay( access_t *p_access, vcdinfo_itemid_t itemid )
unsigned int i_entry =
vcdinfo_track_get_entry( p_vcd->vcd, i_track);
/* Valid tracks go from 1...i_tracks-1, because track 0 is
unplayable. */
/* Valid MPEG tracks go from 1...i_tracks. */
if (i_track == 0 || i_track >= p_vcd->i_tracks) {
if (i_track == 0 || i_track > p_vcd->i_tracks) {
LOG_ERR ("Invalid track number %d", i_track );
return VLC_EGENERIC;
}
p_vcd->in_still = VLC_FALSE;
VCDSetOrigin( p_access,
vcdinfo_get_track_lsn(p_vcd->vcd, i_track),
vcdinfo_get_entry_lsn(p_vcd->vcd, i_entry),
vcdinfo_get_track_lsn(p_vcd->vcd, i_track+1),
vcdinfo_get_track_lba(p_vcd->vcd, i_track),
vcdinfo_get_entry_lba(p_vcd->vcd, i_entry),
vcdinfo_get_track_lba(p_vcd->vcd, i_track+1),
i_track, &itemid );
break;
}
......@@ -472,9 +468,9 @@ VCDPlay( access_t *p_access, vcdinfo_itemid_t itemid )
track_t i_track = vcdinfo_get_track(p_vcd->vcd, i_entry);
p_vcd->in_still = VLC_FALSE;
VCDSetOrigin( p_access,
vcdinfo_get_entry_lsn(p_vcd->vcd, i_track),
vcdinfo_get_entry_lsn(p_vcd->vcd, i_entry),
vcdinfo_get_entry_lsn(p_vcd->vcd, i_track+1),
vcdinfo_get_entry_lba(p_vcd->vcd, i_track),
vcdinfo_get_entry_lba(p_vcd->vcd, i_entry),
vcdinfo_get_entry_lba(p_vcd->vcd, i_track+1),
i_track, &itemid );
}
break;
......@@ -535,15 +531,20 @@ VCDEntryPoints( access_t * p_access )
snprintf(psz_entry, sizeof(psz_entry), "%s%02d", _("Entry "), i );
p_vcd->p_entries[i] = vcdinfo_get_entry_lsn(p_vcd->vcd, i);
p_vcd->p_entries[i] = vcdinfo_get_entry_lba(p_vcd->vcd, i);
s->psz_name = strdup(psz_entry);
s->i_byte_offset =
(p_vcd->p_entries[i] - vcdinfo_get_track_lsn(p_vcd->vcd, i_track))
(p_vcd->p_entries[i] - vcdinfo_get_track_lba(p_vcd->vcd, i_track))
* M2F2_SECTOR_SIZE;
dbg_print( INPUT_DBG_MRL,
"%s, lsn %d, byte_offset %ld\n",
s->psz_name, p_vcd->p_entries[i],
(unsigned long int) s->i_byte_offset);
TAB_APPEND( p_vcd->p_title[i_track-1]->i_seekpoint,
p_vcd->p_title[i_track-1]->seekpoint, s );
} else
msg_Warn( p_access, "wrong track number found in entry points" );
}
......@@ -846,7 +847,6 @@ VCDSetOrigin( access_t *p_access, lsn_t origin_lsn,
p_vcd->play_item.type = p_itemid->type;
p_access->info.i_title = i_track-1;
p_access->info.i_seekpoint = p_itemid->num;
p_access->info.i_size = p_vcd->p_title[i_title]->i_size;
p_access->info.i_pos = ( i_lsn - origin_lsn ) * M2F2_SECTOR_SIZE;
p_access->info.i_update |= INPUT_UPDATE_TITLE|INPUT_UPDATE_SIZE
......@@ -1264,9 +1264,6 @@ static int VCDControl( access_t *p_access, int i_query, va_list args )
(*ppp_title)[i] =
vlc_input_title_Duplicate( p_vcd->p_title[i] );
}
return VLC_SUCCESS;
}
break;
......@@ -1287,9 +1284,9 @@ static int VCDControl( access_t *p_access, int i_query, va_list args )
itemid.type = VCDINFO_ITEM_TYPE_TRACK;
VCDSetOrigin(p_access,
vcdinfo_get_track_lsn(p_vcd->vcd, i_track),
vcdinfo_get_entry_lsn(p_vcd->vcd, i_entry),
vcdinfo_get_track_lsn(p_vcd->vcd, i_track+1),
vcdinfo_get_track_lba(p_vcd->vcd, i_track),
vcdinfo_get_entry_lba(p_vcd->vcd, i_entry),
vcdinfo_get_track_lba(p_vcd->vcd, i_track+1),
i_track, &itemid );
}
break;
......@@ -1303,19 +1300,21 @@ static int VCDControl( access_t *p_access, int i_query, va_list args )
if( t->i_seekpoint > 0 )
{
track_t i_track = p_access->info.i_title+1;
lsn_t track_lsn = vcdinfo_get_track_lsn(p_vcd->vcd, i_track);
p_access->info.i_update |= INPUT_UPDATE_SEEKPOINT;
p_access->info.i_seekpoint = i;
/* FIXME! For now we are assuming titles are only
tracks and that track == title+1 */
p_vcd->i_lsn = track_lsn
+ (t->seekpoint[i]->i_byte_offset / M2F2_SECTOR_SIZE);
p_access->info.i_pos = (int64_t)(p_vcd->i_lsn - track_lsn)
* M2F2_SECTOR_SIZE;
tracks and that track == title+1 and we the play
item is entries (not tracks or lids).
We need to generalize all of this.
*/
p_vcd->play_item.num = i;
p_vcd->play_item.type = VCDINFO_ITEM_TYPE_ENTRY;
VCDSetOrigin( p_access,
vcdinfo_get_track_lba(p_vcd->vcd, i_track),
vcdinfo_get_entry_lba(p_vcd->vcd, i),
vcdinfo_get_track_lba(p_vcd->vcd, i_track+1),
i_track, &(p_vcd->play_item) );
}
return VLC_SUCCESS;
}
......
......@@ -341,7 +341,7 @@ VCDCreatePlayListItem(const access_t *p_access,
break;
}
snprintf(psz_mrl, psz_mrl_max, "%s%s@%c%u", VCD_MRL_PREFIX, psz_source,
snprintf(psz_mrl, psz_mrl_max, "%s%s@%c%3u", VCD_MRL_PREFIX, psz_source,
c_type, itemid->num);
p_title =
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment