New API function burn_write_opts_auto_write_type()

cdrskin/cdrskin_timestamp.h

@@ -1 +1 @@
-#define Cdrskin_timestamP "2007.02.06.185534"
+#define Cdrskin_timestamP "2007.02.07.162836"

libburn/drive.c

@@ -1584,6 +1584,8 @@ int burn_disc_get_multi_caps(struct burn_drive *d, enum burn_write_types wt,
 	o->might_do_tao = o->might_do_sao = o->might_do_raw = 0;
 	o->advised_write_mode = BURN_WRITE_NONE;
 	o->selected_write_mode = wt;
+	o->current_profile = d->current_profile;
+	o->current_is_cd_profile = d->current_is_cd_profile;
 	
 	if (s != BURN_DISC_BLANK && s != BURN_DISC_APPENDABLE) {
 		return 0;
@@ -1662,6 +1664,13 @@ int burn_disc_get_multi_caps(struct burn_drive *d, enum burn_write_types wt,
 		
 	if (s == BURN_DISC_APPENDABLE)
 		o->might_do_sao = o->might_do_raw = 0;
+
+	if (wt == BURN_WRITE_TAO && !o->might_do_tao)
+		return 0;
+	else if (wt == BURN_WRITE_SAO && !o->might_do_sao)
+		return 0;
+	else if (wt == BURN_WRITE_RAW && !o->might_do_raw)
+		return 0;
 	return 1;
 }
 
@@ -1676,3 +1685,36 @@ int burn_disc_free_multi_caps(struct burn_multi_caps **caps)
 	return 1;
 }
 
+
+/* ts A70207 : evaluate write mode related peculiarities of a disc */
+int burn_disc_get_write_mode_demands(struct burn_disc *disc,
+			struct burn_disc_mode_demands *result, int flag)
+{
+	struct burn_session *session;
+	struct burn_track *track;
+	int i, j, mode;
+
+	memset((char *) result, 0, sizeof(struct burn_disc_mode_demands));
+	if (disc->sessions > 1)
+		result->multi_session = 1;
+	for (i = 0; i < disc->sessions; i++) {
+		session = disc->session[i];
+		if (session->tracks <= 0)
+	continue;
+		mode = session->track[0]->mode;
+		if (session->tracks > 1)
+			result->multi_track = 1;
+		for (j = 0; j < session->tracks; j++) {
+			track = session->track[j];
+			if (burn_track_is_open_ended(track))
+				result->unknown_track_size = 1;
+			if (mode != track->mode)
+				result->mixed_mode = 1;
+			if (track->mode != BURN_MODE1)
+				result->exotic_track = 1;
+			if (track->mode == BURN_AUDIO)
+				result->audio = 1;
+		}
+	}
+	return (disc->sessions > 0);
+}

libburn/drive.h

@@ -95,4 +95,17 @@ int burn_mdata_free_subs(struct scsi_mode_data *m);
 /* ts A61230 */
 void burn_disc_format_sync(struct burn_drive *d, off_t size, int flag);
 
+
+/* ts A70207 : evaluate write mode related peculiarities of a disc */
+struct burn_disc_mode_demands {
+	int multi_session;
+	int multi_track;
+	int unknown_track_size;
+	int mixed_mode;
+	int audio;
+	int exotic_track;
+};
+int burn_disc_get_write_mode_demands(struct burn_disc *disc,
+			 struct burn_disc_mode_demands *result, int flag);
+
 #endif /* __DRIVE */

libburn/libburn.h

@@ -1215,6 +1215,22 @@ int burn_write_opts_set_write_type(struct burn_write_opts *opts,
 				   enum burn_write_types write_type,
 				   int block_type);
 
+/* ts A70207 */
+/** As an alternative to burn_write_opts_set_write_type() this function tries
+    to find a suitable write type and block type for a given write job
+    described by opts and disc. To be used after all other setups have been
+    made, i.e. immediately before burn_disc_write().
+    @param opts The nearly complete write opts to change
+    @param disc The already composed session and track model
+    @param reasons This text string collects reasons for decision resp. failure
+    @param flag Bitfield for control purposes (unused yet, submit 0)
+    @return Chosen write type. BURN_WRITE_NONE on failure.
+*/
+enum burn_write_types burn_write_opts_auto_write_type(
+          struct burn_write_opts *opts, struct burn_disc *disc,
+          char reasons[1024], int flag);
+
+
 /** Supplies toc entries for writing - not normally required for cd mastering
     @param opts The write opts to change
     @param count The number of entries
@@ -1385,7 +1401,8 @@ int burn_drive_free_speedlist(struct burn_speed_descriptor **speed_list);
 
 
 /* ts A70203 */
-/** The reply structure for burn_disc_get_multi_caps() */
+/** The reply structure for burn_disc_get_multi_caps()
+*/
 struct burn_multi_caps {
 
 	/* Multi-session capability allows to keep the media appendable after
@@ -1442,14 +1459,20 @@ struct burn_multi_caps {
 	int might_do_tao;
 	int might_do_sao;
 	int might_do_raw;
-	
+
-	/* Advised write mode.
+	/** Advised write mode.
 	*/
 	enum burn_write_types advised_write_mode;
 
-	/* Write mode as given by parameter wt of burn_disc_get_multi_caps().
+	/** Write mode as given by parameter wt of burn_disc_get_multi_caps().
 	*/
 	enum burn_write_types selected_write_mode;
+
+	/** Profile number which was current when the reply was generated */
+	int current_profile;
+
+	/** Wether the current profile indicates CD media. 1=yes, 0=no */
+	int current_is_cd_profile;
 };
 
 /** Allocates a struct burn_multi_caps (see above) and fills it with values
@@ -1459,7 +1482,8 @@ struct burn_multi_caps {
     @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_SAO the
-              capabilities with that particular mode are returned.  
+              capabilities with that particular mode are returned and the
+              return value is 0 if the desired mode is not possible.
     @param caps returns the info structure
     @param flag Bitfield for control purposes (unused yet, submit 0)
     @return < 0 : error , 0 : writing seems impossible , 1 : writing possible 

libburn/libdax_msgs.h

@@ -348,6 +348,9 @@ Range "scdbackup"          :  0x00020000 to 0x0002ffff
  0x00020127 (NOTE,HIGH)    = Write start address is ...
  0x00020128 (FATAL,HIGH)   = Unsupported inquiry_type with mmc_get_performance
  0x00020129 (SORRY,HIGH)   = Will not format media type
+ 0x0002012a (FATAL,HIGH)   = Cannot inquire write mode capabilities
+ 0x0002012b (FATAL,HIGH)   = Drive offers no suitable write mode with this job
+
  0x00020130 (SORRY,HIGH)   = Drive and media state unsuitable for blanking
  0x00020131 (SORRY,HIGH)   = No suitable formatting type offered by drive
  0x00020132 (SORRY,HIGH)   = Selected format is not suitable for libburn

libburn/options.c

@@ -1,5 +1,6 @@
 #include "libburn.h"
 #include "options.h"
+#include "drive.h"
 #include "transport.h"
 
 /* ts A61007 */
@@ -170,6 +171,96 @@ void burn_write_opts_set_start_byte(struct burn_write_opts *opts, off_t value)
 }
 
 
+/* ts A70207 API */
+enum burn_write_types burn_write_opts_auto_write_type(
+		struct burn_write_opts *opts, struct burn_disc *disc,
+		char reasons[1024], int flag)
+{
+	struct burn_multi_caps *caps = NULL;
+	struct burn_drive *d = opts->drive;
+	struct burn_disc_mode_demands demands;
+	int ret;
+	char *reason_pt;
+
+	reasons[0] = 0;
+	ret = burn_disc_get_write_mode_demands(disc, &demands, 0);
+	if (ret <= 0) {
+		strcat(reasons, "cannot recognize job demands, ");
+		return BURN_WRITE_NONE;
+	}
+	if (demands.exotic_track && !d->current_is_cd_profile) {
+		libdax_msgs_submit(libdax_messenger, d->global_index,
+			0x00020123,
+			LIBDAX_MSGS_SEV_SORRY, LIBDAX_MSGS_PRIO_HIGH,
+			"DVD Media are unsuitable for desired track type",
+			0, 0);
+		if (demands.audio)
+			strcat(reasons, "audio track prohibited by non-CD, ");
+		else
+			strcat(reasons, "exotic track prohibited by non-CD, ");
+		return BURN_WRITE_NONE;
+	}
+	
+	ret = burn_disc_get_multi_caps(d, BURN_WRITE_SAO, &caps, 0);
+	if (ret < 0) {
+no_caps:;
+		libdax_msgs_submit(libdax_messenger, d->global_index,
+				0x0002012a,
+				LIBDAX_MSGS_SEV_FATAL, LIBDAX_MSGS_PRIO_HIGH,
+				"Cannot inquire write mode capabilities",
+				0, 0);
+		strcat(reasons, "cannot inquire write mode capabilities, ");
+		return BURN_WRITE_NONE;
+	} if (ret > 0) {
+		reason_pt = reasons + strlen(reasons);
+		strcat(reasons, "SAO: ");
+		if ((opts->multi || demands.multi_session) &&
+		    !caps->multi_session)
+			strcat(reasons, "multi session capability lacking, ");
+		if (demands.multi_track && !caps->multi_track)
+			strcat(reasons, "multi track capability lacking, ");
+		if (demands.unknown_track_size)
+			strcat(reasons, "track size unpredictable, ");
+		if (demands.mixed_mode)
+			strcat(reasons, "tracks of different modes mixed, ");
+		if (strcmp(reason_pt, "SAO: ") != 0)
+			goto no_sao;
+		burn_write_opts_set_write_type(opts,
+					BURN_WRITE_SAO, BURN_BLOCK_SAO);
+		return BURN_WRITE_SAO;
+	} else
+		strcat(reasons, "SAO: no SAO offered by drive and media, ");
+no_sao:;
+	burn_disc_free_multi_caps(&caps);
+	strcat(reasons, "\n");
+	reason_pt = reasons + strlen(reasons);
+	strcat(reasons, "TAO: ");
+	ret = burn_disc_get_multi_caps(d, BURN_WRITE_TAO, &caps, 0);
+	if (ret < 0)
+		goto no_caps;
+	if (ret == 0) {	
+		strcat(reasons, "no TAO offered by drive and media, ");
+no_write_mode:;
+		libdax_msgs_submit(libdax_messenger, d->global_index,
+			0x0002012b,
+			LIBDAX_MSGS_SEV_SORRY, LIBDAX_MSGS_PRIO_HIGH,
+			"Drive offers no suitable write mode with this job",
+			0, 0);
+		return BURN_WRITE_NONE;
+	}
+	if ((opts->multi || demands.multi_session) && !caps->multi_session)
+		strcat(reasons, "multi session capability lacking, ");
+	if (demands.multi_track && !caps->multi_track)
+		strcat(reasons, "multi track capability lacking, ");
+	if (strcmp(reason_pt, "TAO: ") != 0)
+		goto no_write_mode;
+	/* ( TAO data/audio block size will be handled automatically ) */
+	burn_write_opts_set_write_type(opts,
+				BURN_WRITE_TAO, BURN_BLOCK_MODE1);
+	return BURN_WRITE_TAO;
+}
+
+
 void burn_read_opts_set_raw(struct burn_read_opts *opts, int raw)
 {
 	opts->raw = raw;