/*!
Return the starting LBA for track number
track_num in cdio. Tracks numbers start at 1.
The "leadout" track is specified either by
using track_num LEADOUT_TRACK or the total tracks+1.
CDIO_INVALID_LBA is returned on error.
*/
lba_t
cdio_get_track_lba(const CdIo_t *p_cdio, track_t i_track)
{
if (!p_cdio) return CDIO_INVALID_LBA;
if (p_cdio->op.get_track_lba) {
return p_cdio->op.get_track_lba (p_cdio->env, i_track);
} else {
msf_t msf;
if (p_cdio->op.get_track_msf)
if (cdio_get_track_msf(p_cdio, i_track, &msf))
return cdio_msf_to_lba(&msf);
return CDIO_INVALID_LBA;
}
}
/*!
Return the starting LBA for track number
track_num in cdio. Tracks numbers start at 1.
The "leadout" track is specified either by
using track_num LEADOUT_TRACK or the total tracks+1.
CDIO_INVALID_LBA is returned on error.
*/
lba_t
cdio_get_track_lba(const CdIo *cdio, track_t track_num)
{
if (cdio == NULL) return CDIO_INVALID_LBA;
if (cdio->op.get_track_lba) {
return cdio->op.get_track_lba (cdio->env, track_num);
} else {
msf_t msf;
if (cdio->op.get_track_msf)
if (cdio_get_track_msf(cdio, track_num, &msf))
return cdio_msf_to_lba(&msf);
return CDIO_INVALID_LBA;
}
}
/*!
Convert a MSF into the corresponding LSN.
CDIO_INVALID_LSN is returned if there is an error.
*/
lba_t
cdio_msf_to_lsn (const msf_t *msf)
{
return cdio_lba_to_lsn(cdio_msf_to_lba (msf));
}
/* Updates internal track TOC, so we can later
simulate ioctl(CDROMREADTOCENTRY).
*/
static void
_register_mapping (_img_private_t *env, lsn_t start_lsn, uint32_t sec_count,
uint64_t img_offset, uint32_t blocksize,
track_format_t track_format, bool track_green)
{
const int track_num=env->gen.i_tracks;
track_info_t *this_track=&(env->tocent[env->gen.i_tracks]);
_mapping_t *_map = calloc(1, sizeof (_mapping_t));
_map->start_lsn = start_lsn;
_map->sec_count = sec_count;
_map->img_offset = img_offset;
_map->blocksize = blocksize;
if (!env->mapping) env->mapping = _cdio_list_new ();
_cdio_list_append (env->mapping, _map);
env->size = MAX (env->size, (start_lsn + sec_count));
/* Update *this_track and track_num. These structures are
in a sense redundant witht the obj->mapping list. Perhaps one
or the other can be eliminated.
*/
cdio_lba_to_msf (cdio_lsn_to_lba(start_lsn), &(this_track->start_msf));
this_track->start_lba = cdio_msf_to_lba(&this_track->start_msf);
this_track->track_num = track_num+1;
this_track->blocksize = blocksize;
if (env->is_cues)
this_track->datastart = img_offset;
else
this_track->datastart = 0;
if (track_green)
this_track->datastart += CDIO_CD_SUBHEADER_SIZE;
this_track->sec_count = sec_count;
this_track->track_format= track_format;
this_track->track_green = track_green;
switch (this_track->track_format) {
case TRACK_FORMAT_AUDIO:
this_track->blocksize = CDIO_CD_FRAMESIZE_RAW;
this_track->datasize = CDIO_CD_FRAMESIZE_RAW;
/*this_track->datastart = 0;*/
this_track->endsize = 0;
break;
case TRACK_FORMAT_CDI:
this_track->datasize=CDIO_CD_FRAMESIZE;
break;
case TRACK_FORMAT_XA:
if (track_green) {
this_track->blocksize = CDIO_CD_FRAMESIZE;
/*this_track->datastart = CDIO_CD_SYNC_SIZE + CDIO_CD_HEADER_SIZE;*/
this_track->datasize = M2RAW_SECTOR_SIZE;
this_track->endsize = 0;
} else {
/*this_track->datastart = CDIO_CD_SYNC_SIZE + CDIO_CD_HEADER_SIZE +
CDIO_CD_SUBHEADER_SIZE;*/
this_track->datasize = CDIO_CD_FRAMESIZE;
this_track->endsize = CDIO_CD_SYNC_SIZE + CDIO_CD_ECC_SIZE;
}
break;
case TRACK_FORMAT_DATA:
if (track_green) {
/*this_track->datastart = CDIO_CD_SYNC_SIZE + CDIO_CD_HEADER_SIZE;*/
this_track->datasize = CDIO_CD_FRAMESIZE;
this_track->endsize = CDIO_CD_EDC_SIZE + CDIO_CD_M1F1_ZERO_SIZE
+ CDIO_CD_ECC_SIZE;
} else {
/* Is the below correct? */
/*this_track->datastart = 0;*/
this_track->datasize = CDIO_CD_FRAMESIZE;
this_track->endsize = 0;
}
break;
default:
/*this_track->datasize=CDIO_CD_FRAMESIZE_RAW;*/
cdio_warn ("track %d has unknown format %d",
env->gen.i_tracks, this_track->track_format);
}
env->gen.i_tracks++;
cdio_debug ("start lsn: %lu sector count: %0lu -> %8ld (%08lx)",
(long unsigned int) start_lsn,
(long unsigned int) sec_count,
(long unsigned int) img_offset,
(long unsigned int) img_offset);
}
