/*!
Set reading to play an segment (e.g. still frame)
*/
static void
_vcdplayer_set_segment(access_t * p_access, unsigned int num)
{
vcdplayer_t *p_vcdplayer = (vcdplayer_t *)p_access->p_sys;
vcdinfo_obj_t *p_vcdinfo = p_vcdplayer->vcd;
segnum_t i_segs = vcdinfo_get_num_segments(p_vcdinfo);
if (num >= i_segs) {
LOG_ERR("%s %d", "bad segment number", num);
return;
} else {
vcdinfo_itemid_t itemid;
if (VCDINFO_NULL_LSN==p_vcdplayer->i_lsn) {
LOG_ERR("%s %d",
"Error in getting current segment number", num);
return;
}
itemid.num = num;
itemid.type = VCDINFO_ITEM_TYPE_SEGMENT;
VCDSetOrigin(p_access, vcdinfo_get_seg_lsn(p_vcdinfo, num), 0, &itemid);
dbg_print(INPUT_DBG_LSN, "LSN: %u", p_vcdplayer->i_lsn);
}
}
/*!
Set reading to play an entire track.
*/
static void
_vcdplayer_set_track(access_t * p_access, track_t i_track)
{
vcdplayer_t *p_vcdplayer = (vcdplayer_t *)p_access->p_sys;
if (i_track < 1 || i_track > p_vcdplayer->i_tracks)
return;
else {
const vcdinfo_obj_t *p_vcdinfo = p_vcdplayer->vcd;
vcdinfo_itemid_t itemid;
itemid.num = i_track;
itemid.type = VCDINFO_ITEM_TYPE_TRACK;
p_vcdplayer->in_still = 0;
VCDSetOrigin(p_access, vcdinfo_get_track_lsn(p_vcdinfo, i_track),
i_track, &itemid);
dbg_print(INPUT_DBG_LSN, "LSN: %u", p_vcdplayer->i_lsn);
}
}
/*!
Set reading to play an entry
*/
static void
_vcdplayer_set_entry(access_t * p_access, unsigned int num)
{
vcdplayer_t *p_vcdplayer = (vcdplayer_t *)p_access->p_sys;
vcdinfo_obj_t *p_vcdinfo = p_vcdplayer->vcd;
const unsigned int i_entries = vcdinfo_get_num_entries(p_vcdinfo);
if (num >= i_entries) {
LOG_ERR("%s %d", "bad entry number", num);
return;
} else {
vcdinfo_itemid_t itemid;
itemid.num = num;
itemid.type = VCDINFO_ITEM_TYPE_ENTRY;
p_vcdplayer->i_still = 0;
VCDSetOrigin(p_access, vcdinfo_get_entry_lsn(p_vcdinfo, num),
vcdinfo_get_track(p_vcdinfo, num), &itemid);
dbg_print(INPUT_DBG_LSN, "LSN: %u, track_end LSN: %u",
p_vcdplayer->i_lsn, p_vcdplayer->track_end_lsn);
}
}
/****************************************************************************
* VCDSeek
****************************************************************************/
int
VCDSeek( access_t * p_access, uint64_t i_pos )
{
if (!p_access || !p_access->p_sys) return VLC_EGENERIC;
{
vcdplayer_t *p_vcdplayer = (vcdplayer_t *)p_vcd_access->p_sys;
const input_title_t *t = p_vcdplayer->p_title[p_access->info.i_title];
unsigned int i_entry = VCDINFO_INVALID_ENTRY;
int i_seekpoint;
/* Next sector to read */
p_access->info.i_pos = i_pos;
p_vcdplayer->i_lsn = (i_pos / (uint64_t) M2F2_SECTOR_SIZE) +
p_vcdplayer->origin_lsn;
switch (p_vcdplayer->play_item.type)
{
case VCDINFO_ITEM_TYPE_TRACK:
case VCDINFO_ITEM_TYPE_ENTRY:
break;
default:
p_vcdplayer->b_valid_ep = false;
break;
}
/* Find entry */
if( p_vcdplayer->b_valid_ep )
{
for( i_entry = 0 ; i_entry < p_vcdplayer->i_entries ; i_entry ++ )
{
if( p_vcdplayer->i_lsn < p_vcdplayer->p_entries[i_entry] )
{
VCDUpdateVar( p_access, i_entry, VLC_VAR_SETVALUE,
"chapter", _("Entry"), "Setting entry" );
break;
}
}
{
vcdinfo_itemid_t itemid;
itemid.num = i_entry;
itemid.type = VCDINFO_ITEM_TYPE_ENTRY;
VCDSetOrigin(p_access, p_vcdplayer->i_lsn,
p_vcdplayer->i_track, &itemid);
}
}
dbg_print( (INPUT_DBG_CALL|INPUT_DBG_EXT|INPUT_DBG_SEEK),
"orig %lu, cur: %lu, offset: %"PRIi64", entry %d",
(long unsigned int) p_vcdplayer->origin_lsn,
(long unsigned int) p_vcdplayer->i_lsn, i_pos,
i_entry );
/* Find 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;
}
/* Update current seekpoint */
if( i_seekpoint != p_access->info.i_seekpoint )
{
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;
}
}
p_access->info.b_eof = false;
return VLC_SUCCESS;
}
/*****************************************************************************
VCDRead: reads VCD_BLOCKS_ONCE from the VCD and returns that.
NULL is returned if something went wrong.
*****************************************************************************/
static block_t *
VCDReadBlock( access_t * p_access )
{
vcdplayer_t *p_vcdplayer= (vcdplayer_t *)p_access->p_sys;
const int i_blocks = p_vcdplayer->i_blocks_per_read;
block_t *p_block;
int i_read;
uint8_t *p_buf;
dbg_print( (INPUT_DBG_LSN), "lsn: %lu",
(long unsigned int) p_vcdplayer->i_lsn );
/* Allocate a block for the reading */
if( !( p_block = block_Alloc( i_blocks * M2F2_SECTOR_SIZE ) ) )
{
msg_Err( p_access, "cannot get a new block of size: %i",
i_blocks * M2F2_SECTOR_SIZE );
block_Release( p_block );
return NULL;
}
p_buf = (uint8_t *) p_block->p_buffer;
for ( i_read = 0 ; i_read < i_blocks ; i_read++ )
{
vcdplayer_read_status_t read_status = vcdplayer_read(p_access, p_buf);
p_access->info.i_pos += M2F2_SECTOR_SIZE;
switch ( read_status ) {
case READ_END:
/* End reached. Return NULL to indicated this. */
/* We also set the postion to the end so the higher level
(demux?) doesn't try to keep reading. If everything works out
right this shouldn't have to happen.
*/
#if 0
if( p_access->info.i_pos != p_access->info.i_size ) {
msg_Warn( p_access,
"At end but pos (%llu) is not size (%llu). Adjusting.",
p_access->info.i_pos, p_access->info.i_size );
p_access->info.i_pos = p_access->info.i_size;
}
#endif
block_Release( p_block );
return NULL;
case READ_ERROR:
/* Some sort of error. Should we increment lsn? to skip block? */
block_Release( p_block );
return NULL;
case READ_STILL_FRAME:
/* FIXME The below should be done in an event thread.
Until then...
*/
#if 1
msleep( INT64_C(1000) * *p_buf );
VCDSetOrigin(p_access, p_vcdplayer->origin_lsn,
p_vcdplayer->i_track, &(p_vcdplayer->play_item));
// p_vcd->in_still = false;
dbg_print(INPUT_DBG_STILL, "still wait time done");
#endif
block_Release( p_block );
return NULL;
default:
case READ_BLOCK:
/* Read buffer */
break;
}
p_buf += M2F2_SECTOR_SIZE;
/* Update seekpoint */
if ( VCDINFO_ITEM_TYPE_ENTRY == p_vcdplayer->play_item.type )
{
size_t i_entry = p_vcdplayer->play_item.num+1;
lsn_t i_lsn = vcdinfo_get_entry_lsn(p_vcdplayer->vcd, i_entry);
if ( p_vcdplayer->i_lsn >= i_lsn && i_lsn != VCDINFO_NULL_LSN )
{
dbg_print( (INPUT_DBG_LSN|INPUT_DBG_PBC),
"entry change to %zu, current LSN %u >= end %u",
i_entry, p_vcdplayer->i_lsn, i_lsn);
p_vcdplayer->play_item.num = i_entry;
VCDSetOrigin( p_access, i_lsn, p_vcdplayer->i_track,
&(p_vcdplayer->play_item) );
}
}
}
return p_block;
}