static int fill_buffer(stream_t *s, char *buf, int len)
{
int64_t pos;
if (len < 2048)
return -1;
pos = dvd_read_sector(s, s->priv, buf);
if (pos < 0)
return -1;
return 2048; // full sector
}
static int fill_buffer(stream_t *s, char *but, int len)
{
if(s->type == STREAMTYPE_DVD) {
off_t pos=dvd_read_sector(s->priv,s->buffer);
if(pos>=0) {
len=2048; // full sector
s->pos=2048*pos-len;
} else len=-1; // error
}
return len;
}
static int fill_buffer(stream_t *s, char *buf, int len)
{
int64_t pos;
if (len < 2048)
return -1;
pos = dvd_read_sector(s, s->priv, buf);
if (pos < 0)
return -1;
// dvd_read_sector() sometimes internally skips disk-level blocks
s->pos = 2048*(pos - 1);
return 2048; // full sector
}
static int dvd_seek_to_time(stream_t *stream, ifo_handle_t *vts_file, double sec)
{
unsigned int i, j, k, timeunit, ac_time, tmap_sector=0, cell_sector=0, vobu_sector=0;
int t=0;
double tm, duration;
int64_t pos = -1;
dvd_priv_t *d = stream->priv;
vts_tmapt_t *vts_tmapt = vts_file->vts_tmapt;
if(!vts_file->vts_tmapt || sec < 0)
return 0;
duration = (double) mp_get_titleset_length(d->vts_file, d->tt_srpt, d->cur_title) / 1000.0f;
if(sec > duration)
return 0;
i=d->cur_pgc_idx;
timeunit = vts_tmapt->tmap[i].tmu;
for(j = 0; j < vts_tmapt->tmap[i].nr_of_entries; j++) {
ac_time = timeunit * (j + 1);
if(ac_time >= sec)
break;
tmap_sector = vts_tmapt->tmap[i].map_ent[j] & 0x7fffffff;
}
//search enclosing cell
for(i=0; i<d->cur_pgc->nr_of_cells; i++) {
if(tmap_sector >= d->cur_pgc->cell_playback[i].first_sector && tmap_sector <= d->cur_pgc->cell_playback[i].last_sector) {
cell_sector = d->cur_pgc->cell_playback[i].first_sector;
break;
}
}
pos = ((int64_t)cell_sector)<<11;
do_seek(stream, pos);
do {
char buf[2048];
if (dvd_read_sector(stream, stream->priv, buf) < 0) // skip
break;
t = mp_dvdtimetomsec(&d->dsi_pack.dsi_gi.c_eltm);
} while(!t);
tm = dvd_get_current_time(stream, -1);
pos = ((int64_t)tmap_sector)<<11;
do_seek(stream, pos);
//now get current time in terms of the cell+cell time offset
memset(&d->dsi_pack.dsi_gi.c_eltm, 0, sizeof(dvd_time_t));
while(tm <= sec) {
char buf[2048];
if (dvd_read_sector(stream, stream->priv, buf) < 0) // skip
break;
pos += 2048;
tm = dvd_get_current_time(stream, -1);
};
tmap_sector = pos >> 11;
//search closest VOBU sector
k=(vts_file->vts_vobu_admap->last_byte + 1 - VOBU_ADMAP_SIZE)/4; //entries in the vobu admap
for(i=1; i<k; i++) {
if(vts_file->vts_vobu_admap->vobu_start_sectors[i] > tmap_sector)
break;
}
vobu_sector = vts_file->vts_vobu_admap->vobu_start_sectors[i-1];
pos = ((int64_t)vobu_sector) << 11;
do_seek(stream, pos);
return 1;
}
int main(void)
{
static dvd_priv_t dvd_priv;
dvd_read_sector(&dvd_priv, 0);
return 0;
}