New API calls isoburn_igopt_set_write_type() , isoburn_igopt_get_write_type()

libisoburn/burn_wrap.c

@@ -864,14 +864,8 @@ void isoburn_disc_write(struct burn_write_opts *opts, struct burn_disc *disc)
  struct burn_drive *drive;
  char *reasons= NULL, *msg= NULL, *adr= NULL;
  struct stat stbuf;
-
-#ifdef Libisoburn_write_type_autO
-
- /* <<< on its way out */ 
  enum burn_write_types write_type;
 
-#endif /* Libisoburn_write_type_autO */
-
  drive= burn_write_opts_get_drive(opts);
 
  reasons= calloc(1, BURN_REASONS_LEN);
@@ -923,44 +917,42 @@ void isoburn_disc_write(struct burn_write_opts *opts, struct burn_disc *disc)
    }
  }
 
-#ifdef Libisoburn_write_type_autO
+ if(o->do_tao) {
+   if (o->do_tao > 0)
+     burn_write_opts_set_write_type(opts, BURN_WRITE_TAO, BURN_BLOCK_MODE1);
+   else
+     burn_write_opts_set_write_type(opts, BURN_WRITE_SAO, BURN_BLOCK_SAO);
 
- /* <<< on its way out */ 
+   ret = burn_precheck_write(opts, disc, reasons, 0);
+   if(ret <= 0) {
+     sprintf(msg, "Cannot set write type %s for this medium.",
+             o->do_tao > 0 ? "TAO" : "SAO");
+     sprintf(msg + strlen(msg), "Reasons given:\n   %s", reasons);
+     goto no_write_type;
+   }
+   sprintf(msg, "Explicitly chosen write type: %s",
+           o->do_tao > 0 ? "TAO" : "SAO");
+   isoburn_msgs_submit(o, 0x00060000, msg, 0, "NOTE", 0);
+ } else {
+   write_type= burn_write_opts_auto_write_type(opts, disc, reasons, 0);
+   if (write_type == BURN_WRITE_NONE) {
+      sprintf(msg, "Failed to find a suitable write type:\n%s", reasons);
+no_write_type:;
+      isoburn_msgs_submit(o, 0x00060000, msg, 0, "FAILURE", 0);
+      if(o!=NULL)
+        o->wrote_well= 0;
+      /* To cause a negative reply with burn_drive_wrote_well() */
+      burn_drive_cancel(drive);
+      goto ex;
+   }
 
- write_type= burn_write_opts_auto_write_type(opts, disc, reasons, 0);
- if (write_type == BURN_WRITE_NONE) {
-    sprintf(msg, "Failed to find a suitable write mode:\n%s", reasons);
-    isoburn_msgs_submit(o, 0x00060000, msg, 0, "FAILURE", 0);
-    if(o!=NULL)
-      o->wrote_well= 0;
-    /* To cause a negative reply with burn_drive_wrote_well() */
-    burn_drive_cancel(drive);
-    goto ex;
+   sprintf(reasons, "%d", (int) write_type);
+   sprintf(msg, "Write_type = %s\n",
+                (write_type == BURN_WRITE_SAO ? "SAO" :
+                (write_type == BURN_WRITE_TAO ? "TAO" : reasons)));
+   isoburn_msgs_submit(o, 0x00060000, msg, 0, "DEBUG", 0);
  }
 
- sprintf(reasons, "%d", (int) write_type);
- sprintf(msg, "Write_type = %s\n",
-              (write_type == BURN_WRITE_SAO ? "SAO" :
-              (write_type == BURN_WRITE_TAO ? "TAO" : reasons)));
- isoburn_msgs_submit(o, 0x00060000, msg, 0, "DEBUG", 0);
-
-#else /* Libisoburn_write_type_autO */
-
- /* The caller is in charge to select the write type */
- ret = burn_precheck_write(opts, disc, reasons, 0);
- if(ret <= 0) {
-   sprintf(msg, "Write parameters not properly set for this medium:\n   %s",
-           reasons);
-   isoburn_msgs_submit(o, 0x00060000, msg, 0, "FAILURE", 0);
-   if(o!=NULL)
-     o->wrote_well= 0;
-   /* To cause a negative reply with burn_drive_wrote_well() */
-   burn_drive_cancel(drive);
-   goto ex;
- }
-
-#endif /* ! Libisoburn_write_type_autO */
-
 #ifdef Hardcoded_cd_rW
  /* <<< A70929 : hardcoded CD-RW with fabricated -msinfo */
  fprintf(stderr, "Setting write address to LBA %d\n", Hardcoded_cd_rw_nwA);

libisoburn/isoburn.c

@@ -149,6 +149,7 @@ int isoburn_new(struct isoburn **objpt, int flag)
  o->msgs_submit= NULL;
  o->msgs_submit_handle= NULL;
  o->msgs_submit_flag= 0;
+ o->do_tao= 0;
  o->prev= NULL;
  o->next= NULL;
  o->target_iso_head= calloc(1, o->target_iso_head_size);
@@ -435,6 +436,8 @@ int isoburn_prepare_disc_aux(struct burn_drive *in_d, struct burn_drive *out_d,
    {ret= -4; goto ex;}
  }
 
+ out_o->do_tao = opts->do_tao;
+
  state = isoburn_disc_get_status(in_d);
  if (state != BURN_DISC_BLANK && state != BURN_DISC_APPENDABLE &&
      state != BURN_DISC_FULL) {
@@ -1099,6 +1102,7 @@ int isoburn_igopt_new(struct isoburn_imgen_opts **new_o, int flag)
  memset(o->hfsp_serial_number, 0, 8);
  o->hfsp_block_size= 0;
  o->apm_block_size= 0;
+ o->do_tao= 0;
  return(1);
 }
 
@@ -1703,3 +1707,19 @@ int isoburn_igopt_get_hfsp_block_size(struct isoburn_imgen_opts *opts,
 }
 
 
+int isoburn_igopt_set_write_type(struct isoburn_imgen_opts *opts, int do_tao)
+{
+ if(do_tao < -1 || do_tao > 1)
+   return(0);
+ opts->do_tao= do_tao;
+ return(1);
+}
+
+
+int isoburn_igopt_get_write_type(struct isoburn_imgen_opts *opts, int *do_tao)
+{
+ *do_tao= opts->do_tao;
+ return(1);
+}
+
+

libisoburn/isoburn.h

@@ -165,6 +165,9 @@ struct isoburn {
  void *msgs_submit_handle;  /* specific to application method */
  int msgs_submit_flag;      /* specific to application method */
 
+ /* Forwarding an image generation option to the burn wrapper */
+ int do_tao;
+ 
 };
 
 
@@ -691,6 +694,13 @@ struct isoburn_imgen_opts {
      */
     int apm_block_size;
 
+    /* Write mode for optical media:
+     *   0 = auto
+     *   1 = TAO, Incremental, no RESERVE TRACK
+     *  -1 = SAO, DAO, RESERVE TRACK
+     */
+    int do_tao;
+
 };
 
 

libisoburn/libisoburn.h

@@ -1834,6 +1834,31 @@ int isoburn_igopt_get_hfsp_block_size(struct isoburn_imgen_opts *opts,
                                     int *hfsp_block_size, int *apm_block_size);
 
 
+/** Set or inquire the write type for the next write run on optical media.
+    @since 1.2.4
+    @param opts
+           The option set to be manipulated or inquired.
+    @param do_tao
+           The value to be set or the variable where to return the current
+           setting:
+            0 = Let libburn choose according to other write parameters.
+                This is advisable unless there are particular reasons not to
+                use one of the two write types. Be aware that 1 and -1 can
+                lead to failure if the write type is not appropriate for
+                the given media situation.
+            1 = Use BURN_WRITE_TAO which does
+                TAO on CD, Incremental on DVD-R,
+                no track reservation on DVD+R and BD-R
+           -1 = Use BURN_WRITE_SAO which does
+                SAO on CD, DAO on DVD-R,
+                track reservation on DVD+R and BD-R
+    @return
+           <=0 = error, 1 = success
+*/
+int isoburn_igopt_set_write_type(struct isoburn_imgen_opts *opts, int do_tao);
+int isoburn_igopt_get_write_type(struct isoburn_imgen_opts *opts, int *do_tao);
+
+
 /* ----------------------------------------------------------------------- */
 /*                      End of Options for image generation                */
 /* ----------------------------------------------------------------------- */

libisoburn/libisoburn.ver

@@ -48,6 +48,7 @@ isoburn_igopt_get_sort_files;
 isoburn_igopt_get_system_area;
 isoburn_igopt_get_tail_blocks;
 isoburn_igopt_get_untranslated_name_len;
+isoburn_igopt_get_write_type;
 isoburn_igopt_new;
 isoburn_igopt_set_disc_label;
 isoburn_igopt_set_efi_bootp;
@@ -69,6 +70,7 @@ isoburn_igopt_set_sort_files;
 isoburn_igopt_set_system_area;
 isoburn_igopt_set_tail_blocks;
 isoburn_igopt_set_untranslated_name_len;
+isoburn_igopt_set_write_type;
 isoburn_initialize;
 isoburn_is_compatible;
 isoburn_libburn_req;

xorriso/xorriso_timestamp.h

@@ -1 +1 @@
-#define Xorriso_timestamP "2012.07.08.200735"
+#define Xorriso_timestamP "2012.07.10.082919"