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Support for multisession CD Extra Discs courtesy of Patrick

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Guimond.

testiso9660.c: remove ltime comparison check. :-(
This commit is contained in:
rocky
2007-09-28 00:25:43 +00:00
parent f817761954
commit b6aa3db584
3 changed files with 49 additions and 35 deletions
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67
lib/cdda_interface/common_interface.c
View File

@@ -1,7 +1,7 @@
/*
$Id: common_interface.c,v 1.13 2005/02/05 12:37:35 rocky Exp $
$Id: common_interface.c,v 1.14 2007/09/28 00:25:43 rocky Exp $
Copyright (C) 2004, 2005 Rocky Bernstein <rocky@panix.com>
Copyright (C) 2004, 2005, 2007 Rocky Bernstein <rocky@gnu.org>
Copyright (C) 1998, 2002 Monty monty@xiph.org
This program is free software; you can redistribute it and/or modify
@@ -186,14 +186,12 @@ data_bigendianp(cdrom_drive_t *d)
/*! Here we fix up a couple of things that will never happen. yeah,
right.
rocky OMITTED FOR NOW:
The multisession stuff is from Hannu's code; it assumes it knows
the leadout/leadin size.
@return -1 if we can't get multisession info, 0 if there is one
session only or the multi-session LBA is less than or 100 (don't
ask me why -- I don't know), and 1 if the multi-session lba is
greater than 100.
session only or the last session LBA is the same as the first audio
track and 1 if the multi-session lba is higher than first audio track
*/
int
FixupTOC(cdrom_drive_t *d, track_t i_tracks)
@@ -231,37 +229,42 @@ FixupTOC(cdrom_drive_t *d, track_t i_tracks)
}
}
#if LOOKED_OVER
/* For a scsi device, the ioctl must go to the specialized SCSI
CDROM device, not the generic device. */
if (d->ioctl_fd != -1) {
struct cdrom_multisession ms_str;
int result;
ms_str.addr_format = CDROM_LBA;
result = ioctl(d->ioctl_fd, CDROMMULTISESSION, &ms_str);
if (result == -1) return -1;
if (ms_str.addr.lba > 100) {
/* This is an odd little piece of code --Monty */
/* believe the multisession offset :-) */
/* adjust end of last audio track to be in the first session */
for (j = i_tracks-1; j >= 0; j--) {
if (j > 0 && !IS_AUDIO(d,j) && IS_AUDIO(d,j-1)) {
if ((d->disc_toc[j].dwStartSector > ms_str.addr.lba - 11400) &&
(ms_str.addr.lba - 11400 > d->disc_toc[j-1].dwStartSector))
d->disc_toc[j].dwStartSector = ms_str.addr.lba - 11400;
break;
d->audio_last_sector = CDIO_INVALID_LSN;
{
lsn_t last_ses_lsn;
if (cdio_get_last_session (d->p_cdio, &last_ses_lsn) < 0)
return -1;
/* A Red Book Disc must have only one session, otherwise this is a
* CD Extra */
if (last_ses_lsn > d->disc_toc[0].dwStartSector) {
/* CD Extra discs have two session, the first one ending after
* the last audio track
* Thus the need to fix the length of the the audio data portion to
* not cross the lead-out of this session */
for (j = i_tracks-1; j > 1; j--) {
if (cdio_get_track_format(d->p_cdio, j+1) != TRACK_FORMAT_AUDIO &&
cdio_get_track_format(d->p_cdio, j) == TRACK_FORMAT_AUDIO) {
/* First session lead-out is 1:30
* Lead-ins are 1:00
* Every session's first track have a 0:02 pregap
*
* That makes a control data section of (90+60+2)*75 sectors in the
* last audio track */
const int lead_out_gap = ((90+60+2) * CDIO_CD_FRAMES_PER_SEC);
if ((last_ses_lsn - lead_out_gap >= d->disc_toc[j-1].dwStartSector) &&
(last_ses_lsn - lead_out_gap < d->disc_toc[j].dwStartSector)) {
d->audio_last_sector = last_ses_lsn - lead_out_gap - 1;
break;
}
}
}
return 1;
}
}
#endif
return 0;
}

11
lib/cdda_interface/toc.c
View File

@@ -1,5 +1,5 @@
/*
$Id: toc.c,v 1.5 2005/01/10 02:10:46 rocky Exp $
$Id: toc.c,v 1.6 2007/09/28 00:25:43 rocky Exp $
Copyright (C) 2005 Rocky Bernstein <rocky@panix.com>
Copyright (C) 1998 Monty xiphmont@mit.edu
@@ -109,6 +109,15 @@ cdda_track_lastsector(cdrom_drive_t *d, track_t i_track)
cderror(d,"401: Invalid track number\n");
return -1;
}
/* CD Extra have their first session ending at the last audio track */
if (d->cd_extra > 0 && i_track+1 <= d->tracks) {
if (d->audio_last_sector >= d->disc_toc[i_track-1].dwStartSector &&
d->audio_last_sector < d->disc_toc[i_track].dwStartSector) {
return d->audio_last_sector;
}
}
/* Safe, we've always the leadout at disc_toc[tracks] */
return(d->disc_toc[i_track].dwStartSector-1);
}

6
test/testiso9660.c
View File

@@ -1,5 +1,5 @@
/*
$Id: testiso9660.c,v 1.18 2007/07/19 02:03:39 rocky Exp $
$Id: testiso9660.c,v 1.19 2007/09/28 00:25:43 rocky Exp $
Copyright (C) 2003, 2006, 2007 Rocky Bernstein <rocky@gnu.org>
@@ -274,13 +274,15 @@ main (int argc, const char *argv[])
printf("Problem running iso966)get_ltime\n");
return 44;
}
#ifdef FIXED
t2 = mktime(&tm);
if ( t1 != t2 && ! time_compare(p_tm, &tm) ) {
printf("local time retrieved with iso9660_get_ltime() not\n");
printf("same as that set with iso9660_set_ltime().\n");
return 45;
}
#endif
p_tm = gmtime(&now);
t1 = mktime(p_tm);