Implemented DVD-R[W] DAO as BURN_WRITE_SAO

cdrskin/cdrskin_timestamp.h

@@ -1 +1 @@
-#define Cdrskin_timestamP "2007.02.05.132335"
+#define Cdrskin_timestamP "2007.02.06.130410"

libburn/drive.c

@@ -1590,6 +1590,8 @@ int burn_disc_get_multi_caps(struct burn_drive *d, enum burn_write_types wt,
 	} else if (s == BURN_DISC_APPENDABLE &&
 		 (wt == BURN_WRITE_SAO || wt == BURN_WRITE_RAW)) {
 		return 0;
+	} else if (wt == BURN_WRITE_RAW && !d->current_is_cd_profile) {
+		return 0;
 	} else if (d->current_profile == 0x09 || d->current_profile == 0x0a) {
 		 /* CD-R , CD-RW */
 		if (d->block_types[BURN_WRITE_TAO]) {
@@ -1609,13 +1611,21 @@ int burn_disc_get_multi_caps(struct burn_drive *d, enum burn_write_types wt,
 			if (o->advised_write_mode == BURN_WRITE_NONE)
 				o->advised_write_mode = BURN_WRITE_RAW;
 		}
+		if (wt == BURN_WRITE_RAW)
+			o->multi_session = o->multi_track = 0;
 	} else if (d->current_profile == 0x11 || d->current_profile == 0x14) {
 		/* DVD-R , sequential DVD-RW */
+		if (s == BURN_DISC_BLANK) {
+			o->might_do_sao = 1;
+			o->advised_write_mode = BURN_WRITE_SAO;
+		}
 		if (d->current_has_feat21h) {
 			o->multi_session = o->multi_track = 1;
 			o->might_do_tao = 2;
 			o->advised_write_mode = BURN_WRITE_TAO;
 		}
+		if (wt == BURN_WRITE_SAO)
+			o->multi_session = o->multi_track = 0;
 	} else if (d->current_profile == 0x12 || d->current_profile == 0x13 ||
 			d->current_profile == 0x1a) {
 		/* DVD-RAM, overwriteable DVD-RW, DVD+RW */

libburn/libburn.h

@@ -107,24 +107,31 @@ struct burn_write_opts;
 enum burn_write_types
 {
 	/** Packet writing.
-	    currently unsupported
+	      currently unsupported, (for DVD Incremental Streaming use TAO)
 	*/
 	BURN_WRITE_PACKET,
 
-	/** Track At Once recording.
-	    2s gaps between tracks, no fonky lead-ins
+	/** With CD:                     Track At Once recording
+	      2s gaps between tracks, no fonky lead-ins
+
+	    With sequential DVD-R[W]:    Incremental Streaming
+	    With DVD-RAM/+RW:            Random Writeable (used sequentially)
+	    With overwriteable DVD-RW:   Rigid Restricted Overwrite 
 	*/
 	BURN_WRITE_TAO,
 
-	/** Session At Once.
-	    Block type MUST be BURN_BLOCK_SAO
-	    ts A70122 : Currently not capable of mixing data and audio tracks.
+	/** With CD:                     Session At Once
+	      Block type MUST be BURN_BLOCK_SAO
+	      ts A70122: Currently not capable of mixing data and audio tracks.
+
+	    With sequential DVD-R[W]:    Disc-at-once, DAO
+	      Single session, single track, fixed size mandatory, (-dvd-compat)
 	*/
 	BURN_WRITE_SAO,
 
-	/** Raw disc at once recording.
-	    all subcodes must be provided by lib or user
-	    only raw block types are supported
+	/** With CD: Raw disc at once recording.
+	      all subcodes must be provided by lib or user
+	      only raw block types are supported
 	*/
 	BURN_WRITE_RAW,
 
@@ -1385,6 +1392,10 @@ struct burn_multi_caps {
 	   writing a session. It also guarantees that the drive will be able
 	   to predict and use the appropriate Next Writeable Address to place
 	   the next session on the media without overwriting the existing ones.
+	   It does not guarantee that the selected write type is able to do
+	   an appending session after the next session. (E.g. CD SAO is capable
+	   of multi-session by keeping a disc appendable. But .might_do_sao
+	   will be 0 afterwards, when checking the appendable media.)
 	    1= media may be kept appendable by burn_write_opts_set_multi(o,1)
  	    0= media will not be apendable appendable
 	*/
@@ -1447,7 +1458,7 @@ struct burn_multi_caps {
     via burn_disc_free_multi_caps() when no longer needed.
     @param d The drive to inquire
     @param wt With BURN_WRITE_NONE the best capabilities of all write modes
-              get returned. If set to a write mode like BURN_WRITE_TAO the
+              get returned. If set to a write mode like BURN_WRITE_SAO the
               capabilities with that particular mode are returned.  
     @param caps returns the info structure
     @param flag Bitfield for control purposes (unused yet, submit 0)

libburn/libdax_msgs.h

@@ -352,6 +352,12 @@ Range "scdbackup"          :  0x00020000 to 0x0002ffff
  0x00020131 (SORRY,HIGH)   = No suitable formatting type offered by drive
  0x00020132 (SORRY,HIGH)   = Selected format is not suitable for libburn
  0x00020133 (SORRY,HIGH)   = Cannot mix data and audio in SAO mode
+ 0x00020134 (NOTE,HIGH)    = Defaulted TAO to DAO
+ 0x00020135 (SORRY,HIGH)   = Cannot perform TAO, job unsuitable for DAO
+ 0x00020136 (SORRY,HIGH)   = DAO Burning restricted to single fixed size track
+ 0x00020137 (HINT,HIGH)    = TAO would be possible
+ 0x00020138 (FATAL,HIGH)   = Cannot reserve track
+
 
  libdax_audioxtr:
  0x00020200 (SORRY,HIGH)   = Cannot open audio source file

libburn/mmc.c

@@ -208,20 +208,27 @@ int mmc_reserve_track(struct burn_drive *d, off_t size)
 {
 	struct command c;
 	int lba;
+	char msg[80];
 
 	mmc_function_spy("mmc_reserve_track");
 	c.retry = 1;
 	c.oplen = sizeof(MMC_RESERVE_TRACK);
 	memcpy(c.opcode, MMC_RESERVE_TRACK, sizeof(MMC_RESERVE_TRACK));
 
-	/* Nice rounding trick learned from dvd+rw-tools */
+	/* Round to 32 KiB and divide by 2048
+	   (by nice binary rounding trick learned from dvd+rw-tools) */
 	lba = ((size + (off_t) 0x7fff) >> 11) & ~0xf;
 	mmc_int_to_four_char(c.opcode+5, lba);
 
+	sprintf(msg, "reserving track of %d blocks", lba);
+	libdax_msgs_submit(libdax_messenger, -1, 0x00000002,
+			   LIBDAX_MSGS_SEV_DEBUG, LIBDAX_MSGS_PRIO_ZERO,
+			   msg, 0, 0);
+
 	c.page = NULL;
 	c.dir = NO_TRANSFER;
 	d->issue_command(d, &c);
-	return !!c.error;
+	return !c.error;
 }
 
 
@@ -1521,6 +1528,10 @@ void mmc_get_configuration(struct burn_drive *d)
 	if (cp == 0x12)
 		d->current_is_supported_profile = 1;
 #endif
+#ifdef Libburn_support_dvd_r_seQ
+	if (cp == 0x11 || cp == 0x14)
+		d->current_is_supported_profile = 1;
+#endif
 
 /* Enable this to get loud and repeated reports about the feature set :
 #define Libburn_print_feature_descriptorS 1
@@ -1645,11 +1656,6 @@ void mmc_get_configuration(struct burn_drive *d)
 
 		}
 	}
-#ifdef Libburn_support_dvd_r_seQ
-	/* might get adjusted later by mmc_read_disc_info() */
-	if ((cp == 0x11 || cp == 0x14) && d->current_has_feat21h)
-		d->current_is_supported_profile = 1;
-#endif
 }
 
 
@@ -1778,6 +1784,11 @@ void mmc_sync_cache(struct burn_drive *d)
 	c.oplen = sizeof(MMC_SYNC_CACHE);
 	c.page = NULL;
 	c.dir = NO_TRANSFER;
+
+	libdax_msgs_submit(libdax_messenger, -1, 0x00000002,
+			   LIBDAX_MSGS_SEV_DEBUG, LIBDAX_MSGS_PRIO_ZERO,
+			   "\nsyncing cache", 0, 0);
+
 	d->issue_command(d, &c);
 }
 
@@ -2232,8 +2243,8 @@ int mmc_compose_mode_page_5(struct burn_drive *d,
 	pd[0] = 5;
 	pd[1] = d->mdata->write_page_length;
 
-	/* ts A61229 */
-	if (d->current_profile == 0x13) {     /* DVD-RW restricted overwrite */
+	if (d->current_profile == 0x13) {
+		/* A61229 : DVD-RW restricted overwrite */
 		/* learned from transport.hxx : page05_setup()
 		   and mmc3r10g.pdf table 347 */
  		/* BUFE (burnproof), no LS_V (i.e. default Link Size, i hope),
@@ -2247,11 +2258,28 @@ int mmc_compose_mode_page_5(struct burn_drive *d,
 		pd[5] = 0;
 
 	} else if ((d->current_profile == 0x14 || d->current_profile == 0x11)
-			&& d->current_has_feat21h == 1) { /* ts A70128 */
-		/* learned from transport.hxx : page05_setup()
+		&& o->write_type == BURN_WRITE_SAO) {
+		/* ts A70205 : DVD-R[W} : Disc-at-once, DAO */
+		/* Learned from dvd+rw-tools and mmc5r03c.pdf .
+		   See doc/cookbook.txt for more detailed references. */
+
+		/* BUFE , LS_V = 0, Test Write, Write Type = 2 SAO (DAO) */
+		pd[2] = ((!!o->underrun_proof) << 6)
+			| ((!!o->simulate) << 4)
+			| 2;
+		/* No multi-session , FP = 0 , Track Mode = 5 */
+		pd[3] = 5;
+		/* Data Block Type = 8 */
+		pd[4] = 8;
+
+	} else if (d->current_profile == 0x14 || d->current_profile == 0x11) {
+		/* ts A70128 : DVD-R[W] Incremental Streaming */
+		/* Learned from transport.hxx : page05_setup()
 		   and mmc5r03c.pdf 7.5, 4.2.3.4 Table 17
 		   and spc3r23.pdf 6.8, 7.4.3 */
-		/* BUFE , LS_V = 1, Test Write, Write Type = 00h Incremental */
+
+		/* BUFE , LS_V = 1, Test Write,
+		   Write Type = 0 Packet/Incremental */
 		pd[2] = ((!!o->underrun_proof) << 6)
 			| (1 << 5)
 			| ((!!o->simulate) << 4);
@@ -2279,6 +2307,7 @@ int mmc_compose_mode_page_5(struct burn_drive *d,
 
 	} else {
 		/* Traditional setup for CD */
+
 		pd[2] = ((!!o->underrun_proof) << 6)
 			| ((!!o->simulate) << 4)
 			| (o->write_type & 0x0f);

libburn/write.c

@@ -869,22 +869,40 @@ int burn_disc_init_write_status(struct burn_write_opts *o,
 
 
 /* ts A70129 : learned much from dvd+rw-tools-7.0/growisofs_mmc.cpp */
-int burn_disc_open_track_dvd_minus_r(struct burn_write_opts *o, int tnum)
+int burn_disc_open_track_dvd_minus_r(struct burn_write_opts *o,
+					struct burn_session *s, int tnum)
 {
 	struct burn_drive *d = o->drive;
 	char msg[160];
 	int ret, lba, nwa;
+	off_t size;
 
 	d->send_write_parameters(d, o);
 	ret = d->get_nwa(d, -1, &lba, &nwa);
 	sprintf(msg, 
 		"DVD pre-track %2.2d : get_nwa(%d), ret= %d , d->nwa= %d\n",
 		tnum+1, nwa, ret, d->nwa);
-		libdax_msgs_submit(libdax_messenger, d->global_index, 0x000002,
-				LIBDAX_MSGS_SEV_DEBUG, LIBDAX_MSGS_PRIO_ZERO,
-				msg,0,0);
+	libdax_msgs_submit(libdax_messenger, d->global_index, 0x000002,
+			LIBDAX_MSGS_SEV_DEBUG, LIBDAX_MSGS_PRIO_ZERO, msg,0,0);
 	if (nwa > d->nwa)
 		d->nwa = nwa;
+
+	if (o->write_type == BURN_WRITE_SAO) { /* DAO */
+ 		/* Round track size up to 32 KiB and reserve track */
+		size = ((off_t) burn_track_get_sectors(s->track[tnum]))
+			 * (off_t) 2048;
+		size = (size + (off_t) 0x7fff) & ~((off_t) 0x7fff);
+		ret = d->reserve_track(d, size);
+		if (ret <= 0) {
+			sprintf(msg, "Cannot reserve track of %.f bytes",
+				(double) size);
+			libdax_msgs_submit(libdax_messenger, d->global_index,
+				0x00020138,
+				LIBDAX_MSGS_SEV_FATAL, LIBDAX_MSGS_PRIO_HIGH,
+				msg, 0,0);
+			return 0;
+		}
+	}
 	return 1;
 }
 
@@ -896,8 +914,8 @@ int burn_disc_close_track_dvd_minus_r(struct burn_write_opts *o,
 	struct burn_drive *d = o->drive;
 	char msg[80];
 
-	/* only DVD-R or sequential DVD-RW */
-	if (d->current_has_feat21h != 1) /* only with Incremental writing */
+	/* only with Incremental writing */
+	if (o->write_type != BURN_WRITE_TAO)
 		return 2;
 
 	sprintf(msg, "Closing track %2.2d  (absolute track number %d)",
@@ -929,7 +947,7 @@ int burn_dvd_write_track(struct burn_write_opts *o,
 
 	if (d->current_profile == 0x11 || d->current_profile == 0x14) {
 		/* DVD-R, DVD-RW Sequential */
-		ret = burn_disc_open_track_dvd_minus_r(o, tnum);
+		ret = burn_disc_open_track_dvd_minus_r(o, s, tnum);
 		if (ret <= 0)
 			goto ex;
 	}
@@ -1026,8 +1044,9 @@ int burn_disc_close_session_dvd_minus_r(struct burn_write_opts *o,
 {
 	struct burn_drive *d = o->drive;
 
-	if (d->current_has_feat21h != 1)
-		return 2; /* only for Incremental writing */
+	/* only for Incremental writing */
+	if (o->write_type != BURN_WRITE_TAO)
+		return 2;
 
 	libdax_msgs_submit(libdax_messenger, o->drive->global_index,0x00020119,
 			LIBDAX_MSGS_SEV_DEBUG, LIBDAX_MSGS_PRIO_HIGH,
@@ -1047,7 +1066,7 @@ int burn_dvd_write_session(struct burn_write_opts *o,
 	int i,ret;
         struct burn_drive *d = o->drive;
 
-	/* >>> open_session ? (maybe with DAO) */
+	/* >>> open_session ? */
 
 	for (i = 0; i < s->tracks; i++) {
 		ret = burn_dvd_write_track(o, s, i);
@@ -1189,11 +1208,7 @@ int burn_disc_setup_dvd_minus_r(struct burn_write_opts *o,
 {
 	struct burn_drive *d = o->drive;
 
-	if (d->current_has_feat21h) {
-		/* most setup is in burn_disc_setup_track_dvd_minus_r() */;
-	} else {
-		return 0; /* >>> no DAO for now */
-	}
+	/* most setup is in burn_disc_setup_track_dvd_minus_r() */;
 
 	d->nwa = 0;
 	return 1;
@@ -1204,7 +1219,7 @@ int burn_disc_setup_dvd_minus_r(struct burn_write_opts *o,
 int burn_dvd_write_sync(struct burn_write_opts *o,
 				 struct burn_disc *disc)
 {
-	int i, ret, sx, tx, mode, exotic_track = 0;
+	int i, ret, sx, tx, mode, exotic_track = 0, dao_is_ok;
 	struct burn_drive *d = o->drive;
 	char msg[160];
 
@@ -1289,9 +1304,47 @@ int burn_dvd_write_sync(struct burn_write_opts *o,
 		/* _Rigid_ Restricted Overwrite demands this */
 		o->obs_pad = 1; /* fill-up track's last 32k buffer */
 
-	} else if ((d->current_profile == 0x11 || d->current_profile == 0x14)
-		   && d->current_has_feat21h == 1) {
-		/* DVD-R , DVD-RW Sequential (for now only Incremental) */
+	} else if (d->current_profile == 0x11 || d->current_profile == 0x14) {
+		/* DVD-R , DVD-RW Sequential */
+		dao_is_ok =
+			(disc->sessions == 1 &&
+			 disc->session[0]->tracks == 1 &&
+			 (! burn_track_is_open_ended(
+						disc->session[0]->track[0])) &&
+			 (!o->multi) && d->status == BURN_DISC_BLANK
+			);
+		if (o->write_type == BURN_WRITE_TAO && 
+		    !d->current_has_feat21h) {
+			if (dao_is_ok) {
+				o->write_type = BURN_WRITE_SAO;
+				libdax_msgs_submit(libdax_messenger,
+				  d->global_index, 0x00020134,
+				  LIBDAX_MSGS_SEV_NOTE, LIBDAX_MSGS_PRIO_HIGH,
+				  "Defaulted TAO to DAO (lack of feature 21h)",
+				  0, 0);
+			} else {
+				libdax_msgs_submit(libdax_messenger,
+				  d->global_index, 0x00020135,
+				  LIBDAX_MSGS_SEV_SORRY, LIBDAX_MSGS_PRIO_HIGH,
+	"Cannot perform TAO (lack of feature 21h), job unsuitable for DAO",
+				  0, 0);
+				goto early_failure;
+			}
+		} else if (o->write_type == BURN_WRITE_SAO && !dao_is_ok) {
+			libdax_msgs_submit(libdax_messenger, d->global_index,
+				0x00020136,
+				LIBDAX_MSGS_SEV_SORRY, LIBDAX_MSGS_PRIO_HIGH,
+				"DAO burning is restricted to a single fixed size track and no multi-session",
+				0,0);
+			if (d->current_has_feat21h)
+				libdax_msgs_submit(libdax_messenger,
+					d->global_index, 0x00020137,
+					LIBDAX_MSGS_SEV_HINT,
+					LIBDAX_MSGS_PRIO_HIGH,
+				"TAO would be possible and could do the job",
+					0,0);
+			goto early_failure;
+		}
 		if (o->start_byte >= 0) {
 			sprintf(msg, "Write start address not supported");
 			libdax_msgs_submit(libdax_messenger, d->global_index,