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Burning DVD-R DAO with 2 kB size granularity rather than 32 kB

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This commit is contained in:
Thomas Schmitt
2011-03-12 09:35:04 +00:00
parent b945974dc7
commit 1b166f484d
3 changed files with 15 additions and 8 deletions
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14
libburn/write.c
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@ -1119,11 +1119,13 @@ int burn_disc_open_track_dvd_minus_r(struct burn_write_opts *o,
#endif
if (o->write_type == BURN_WRITE_SAO) { /* DAO */
/* Round track size up to write chunk size and reserve track */
size = ((off_t) burn_track_get_sectors(s->track[tnum]))
* (off_t) 2048;
if (size % o->obs)
/* Eventually round track size up to write chunk */
if (o->obs_pad && (size % o->obs))
size += (off_t) (o->obs - (size % o->obs));
ret = d->reserve_track(d, size);
if (ret <= 0) {
sprintf(msg, "Cannot reserve track of %.f bytes",
@ -1164,6 +1166,10 @@ int burn_disc_open_track_dvd_plus_r(struct burn_write_opts *o,
/* Round track size up to write chunk size and reserve track */
size = ((off_t) burn_track_get_sectors(s->track[tnum]))
* (off_t) 2048;
/* o->obs should be 32k or 64k already. But 32k alignment
was once performed in d->reserve_track() */
if (o->obs % 32768)
o->obs += 32768 - (o->obs % 32768);
if (size % o->obs)
size += (off_t) (o->obs - (size % o->obs));
ret = d->reserve_track(d, size);
@ -1892,6 +1898,8 @@ int burn_dvd_write_sync(struct burn_write_opts *o,
msg, 0, 0);
burn_track_set_size(t, default_size);
}
/* Whether to fill-up last 32k buffer of track. */
o->obs_pad = (o->write_type != BURN_WRITE_SAO);
ret = burn_disc_setup_dvd_minus_r(o, disc);
if (ret <= 0) {
sprintf(msg,
@ -1902,8 +1910,6 @@ int burn_dvd_write_sync(struct burn_write_opts *o,
msg, 0, 0);
goto early_failure;
}
/* ??? padding needed ??? cowardly doing it for now */
o->obs_pad = 1; /* fill-up track's last 32k buffer */
} else if (d->current_profile == 0x1b || d->current_profile == 0x2b ||
d->current_profile == 0x41) {