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Adjustable write position for DVD+RW: burn_write_opts_set_start_byte()

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This commit is contained in:
Thomas Schmitt
2006-12-23 10:20:35 +00:00
parent 1ae27b6afc
commit 639aad3571
5 changed files with 57 additions and 11 deletions
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34
libburn/trunk/libburn/write.c
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@ -909,6 +909,7 @@ int burn_disc_setup_dvd_plus_rw(struct burn_write_opts *o,
{
struct burn_drive *d = o->drive;
int ret;
char msg[160];
if (d->bg_format_status==0 || d->bg_format_status==1) {
/* start or re-start dvd_plus_rw formatting */
@ -916,14 +917,18 @@ int burn_disc_setup_dvd_plus_rw(struct burn_write_opts *o,
if (ret <= 0)
return 0;
}
d->nwa = 0;
if (o->start_byte >= 0)
d->nwa = o->start_byte / 2048;
/* >>> Set speed */;
sprintf(msg, "Write start address is %d * 2048\n", d->nwa);
libdax_msgs_submit(libdax_messenger, d->global_index,
0x00020127,
LIBDAX_MSGS_SEV_NOTE, LIBDAX_MSGS_PRIO_HIGH,
msg, 0,0);
/* >>> perform OPC if needed */;
d->nwa = 0;
/* >>> d->get_nwa() (default to 0) */;
/* >>> ? what else ? */;
return 1;
@ -977,6 +982,15 @@ int burn_dvd_write_sync(struct burn_write_opts *o,
msg, 0,0);
goto early_failure;
}
if (o->start_byte >= 0 && (o->start_byte % 2048)) {
sprintf(msg,
"Write start address not properly aligned to 2048");
libdax_msgs_submit(libdax_messenger, d->global_index,
0x00020125,
LIBDAX_MSGS_SEV_SORRY, LIBDAX_MSGS_PRIO_HIGH,
msg, 0,0);
goto early_failure;
}
} else {
sprintf(msg, "Unsuitable media detected. Profile %4.4Xh %s",
@ -987,7 +1001,6 @@ int burn_dvd_write_sync(struct burn_write_opts *o,
msg, 0,0);
goto early_failure;
}
o->obs = 32*1024; /* buffer flush trigger for sector.c:get_sector() */
burn_disc_init_write_status(o, disc);
@ -1017,7 +1030,6 @@ early_failure:;
pthread_mutex_lock(&d->access_lock);
d->cancel = 1;
pthread_mutex_unlock(&d->access_lock);
usleep(500001); /* to avoid a warning from remove_worker() */
return 0;
}
@ -1048,6 +1060,15 @@ void burn_disc_write_sync(struct burn_write_opts *o, struct burn_disc *disc)
return;
}
if (o->start_byte >= 0) {
sprintf(msg, "Write start address not supported");
libdax_msgs_submit(libdax_messenger, d->global_index,
0x00020124,
LIBDAX_MSGS_SEV_SORRY, LIBDAX_MSGS_PRIO_HIGH,
msg, 0,0);
goto fail_wo_sync;
}
burn_print(1, "sync write of %d CD sessions\n", disc->sessions);
/* Apparently some drives require this command to be sent, and a few drives
@ -1181,6 +1202,7 @@ return crap. so we send the command, then ignore the result.
fail:
d->sync_cache(d);
fail_wo_sync:;
usleep(500001); /* ts A61222: to avoid a warning from remove_worker()*/
burn_print(1, "done - failed\n");
libdax_msgs_submit(libdax_messenger, d->global_index, 0x0002010b,
LIBDAX_MSGS_SEV_FATAL, LIBDAX_MSGS_PRIO_HIGH,