Burning DVD-R DAO with 2 kB size granularity rather than 32 kB
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@ -1 +1 @@
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#define Cdrskin_timestamP "2011.03.10.132603"
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#define Cdrskin_timestamP "2011.03.12.093520"
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@ -347,9 +347,10 @@ int mmc_reserve_track(struct burn_drive *d, off_t size)
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memcpy(c.opcode, MMC_RESERVE_TRACK, sizeof(MMC_RESERVE_TRACK));
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*/
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c.retry = 1;
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/* Round to 32 KiB and divide by 2048
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(by nice binary rounding trick learned from dvd+rw-tools) */
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lba = ((size + (off_t) 0x7fff) >> 11) & ~0xf;
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lba = size / 2048;
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if (size % 2048)
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lba++;
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mmc_int_to_four_char(c.opcode+5, lba);
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sprintf(msg, "reserving track of %d blocks", lba);
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@ -1119,11 +1119,13 @@ int burn_disc_open_track_dvd_minus_r(struct burn_write_opts *o,
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#endif
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if (o->write_type == BURN_WRITE_SAO) { /* DAO */
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/* Round track size up to write chunk size and reserve track */
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size = ((off_t) burn_track_get_sectors(s->track[tnum]))
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* (off_t) 2048;
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if (size % o->obs)
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/* Eventually round track size up to write chunk */
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if (o->obs_pad && (size % o->obs))
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size += (off_t) (o->obs - (size % o->obs));
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ret = d->reserve_track(d, size);
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if (ret <= 0) {
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sprintf(msg, "Cannot reserve track of %.f bytes",
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@ -1164,6 +1166,10 @@ int burn_disc_open_track_dvd_plus_r(struct burn_write_opts *o,
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/* Round track size up to write chunk size and reserve track */
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size = ((off_t) burn_track_get_sectors(s->track[tnum]))
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* (off_t) 2048;
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/* o->obs should be 32k or 64k already. But 32k alignment
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was once performed in d->reserve_track() */
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if (o->obs % 32768)
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o->obs += 32768 - (o->obs % 32768);
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if (size % o->obs)
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size += (off_t) (o->obs - (size % o->obs));
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ret = d->reserve_track(d, size);
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@ -1892,6 +1898,8 @@ int burn_dvd_write_sync(struct burn_write_opts *o,
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msg, 0, 0);
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burn_track_set_size(t, default_size);
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}
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/* Whether to fill-up last 32k buffer of track. */
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o->obs_pad = (o->write_type != BURN_WRITE_SAO);
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ret = burn_disc_setup_dvd_minus_r(o, disc);
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if (ret <= 0) {
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sprintf(msg,
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@ -1902,8 +1910,6 @@ int burn_dvd_write_sync(struct burn_write_opts *o,
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msg, 0, 0);
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goto early_failure;
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}
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/* ??? padding needed ??? cowardly doing it for now */
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o->obs_pad = 1; /* fill-up track's last 32k buffer */
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} else if (d->current_profile == 0x1b || d->current_profile == 0x2b ||
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d->current_profile == 0x41) {
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