New blank type as_needed

cdrskin/cdrskin.1

@@ -2,7 +2,7 @@
 .\" First parameter, NAME, should be all caps
 .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
 .\" other parameters are allowed: see man(7), man(1)
-.TH CDRSKIN 1 "April 26, 2008"
+.TH CDRSKIN 1 "April 27, 2008"
 .\" Please adjust this date whenever revising the manpage.
 .\"
 .\" Some roff macros, for reference:
@@ -168,7 +168,7 @@ Multiple cycles of blanking and overwriting with random numbers might be.
 Currently DVD-RW, DVD-R and DVD+R[/DL] can be used for the Sequential recording
 model.
 .br
-DVD-RW must be in state "Sequential Recording".
+This applies to DVD-RW only if they are in state "Sequential Recording".
 The media must be either blank or appendable.
 Newly purchased DVD-RW and DVD-R media are in this state.
 Used DVD-RW get into blank sequential state by option
@@ -218,10 +218,6 @@ Best reader compatibility is achieved without it
 Currently types DVD+RW, DVD-RW, DVD-RAM and BD-RE can be overwritten via
 cdrskin. BD-RE is supported only with option --allow_untested_media.
 .br
-DVD+RW and DVD-RAM media need no special initial formatting. They offer a
-single continuous data area for blockwise random access. BD-RE need
-explicit formatting before use. See blank=format_defectmgt .
-.br
 Option -audio is not allowed. Only one track is allowed.
 Option -multi cannot mark a recognizeable end of overwriteable media.
 Therefore -multi is banned unless ISO-9660 images shall be expandable by help
@@ -233,6 +229,12 @@ media get treated as blank regardless wether they hold data or not.
 .br
 Currently there is no difference between -sao and -tao. If ever, then -tao
 will be the mode which preserves the current behavior.
+.PP
+DVD+RW and DVD-RAM media need no special initial formatting. They offer a
+single continuous data area for blockwise random access. BD-RE need
+explicit formatting before use. See
+.B blank=as_needed
+or blank=format_defectmgt .
 .br
 DVD-RW are sold in state "Sequential Recording". To become suitable for the
 Overwriteable DVD recording model they need to get formatted to state
@@ -355,8 +357,16 @@ This is combinable with burning in the same run of cdrskin.
 The type given with blank= selects the particular behavior:
 .RS
 .TP
-help
+as_needed
-Print this list of blanking types.
+Try to make the media ready for writing from scratch. If it needs formatting,
+then format it. If it is not blank, then try to apply blank=fast.
+It is a reason to abort if the media cannot assume thoroughly writeable state,
+e.g. if it is non-blank write-once.
+.br
+This leaves unformatted DVD-RW in unformatted blank state. To format DVD-RW use
+blank=format_overwriteable.
+.TP
+The following blank types are specific to particular media familes. Use them if special features are desired.
 .TP
 all
 Blank an entire CD-RW or an unformatted DVD-RW.
@@ -386,6 +396,7 @@ and if cdrskin supports formatting for the media type,
 and if formatting will not happen automatically during write.
 This currently applies to unformatted DVD-RW, DVD-RAM and BD-RE.
 Eventually the appropriate default formatting is chosen.
+If other media or states are encountered then nothing happens.
 .br
 Note: BD-RE currently is only supported with option --allow_untested_media .
 .br
@@ -466,6 +477,9 @@ The numbers after text "Format idx" are the ones to be used with
 format_by_index_. Format descriptor lists are volatile. Do neither eject
 nor write the media between the run of --list_formats and the run of
 blank=format_by_index_ or else you may get a different format than desired.
+.TP
+help
+Print this list of blanking types.
 .RE
 .TP
 .BI \-checkdrive

cdrskin/cdrskin.c

@@ -2391,6 +2391,8 @@ return:
      fprintf(stderr,"\tdisk\t\tblank the entire disk\n");
      fprintf(stderr,"\tfast\t\tminimally blank the entire disk\n");
      fprintf(stderr,"\tminimal\t\tminimally blank the entire disk\n");
+     fprintf(stderr,
+         "\tas_needed\tblank or format media to make it ready for (re-)use\n");
      fprintf(stderr,
           "\tdeformat_sequential\t\tfully blank, even formatted DVD-RW\n");
      fprintf(stderr,
@@ -3170,6 +3172,10 @@ struct CdrskiN {
                              gets mapped to default variants of specialized
                              formats if the media state requires formatting
                              before writing
+                           7=if_needed
+                             gets mapped to 6 for DVD-RAM and BD-RE,
+                             to 0 with all other non-blanks
+
                            bit8-15: bit0-7 of burn_disc_format(flag)
                                     depending on job type
                         */
@@ -4302,11 +4308,13 @@ int Cdrskin_invalidate_iso_head(struct CdrskiN *skin, int flag)
     @param flag Bitfield for control purposes: 
                 bit0= permission to check for overwriteable ISO image
                 bit1= do not report media profile
+                bit2= do not report but only check for pseudo appendable
+    @return 1=ok, 2=ok, is pseudo appendable, <=0 error
 */
 int Cdrskin_report_disc_status(struct CdrskiN *skin, enum burn_disc_status s,
                                int flag)
 {
- int ret, iso_size;
+ int ret, iso_size, pseudo_appendable= 0;
 
  if(flag&1) {
    if(skin->media_is_overwriteable && skin->grow_overwriteable_iso>0) {
@@ -4314,10 +4322,14 @@ int Cdrskin_report_disc_status(struct CdrskiN *skin, enum burn_disc_status s,
        ret= 1;
      else
        ret= Cdrskin_overwriteable_iso_size(skin,&iso_size,0);
-     if(ret>0)
+     if(ret>0) {
        s= BURN_DISC_APPENDABLE;
+       pseudo_appendable= 1;
      }
    }
+ } 
+ if(flag&4)
+   return(1+pseudo_appendable);
 
  printf("cdrskin: status %d ",s);
  if(s==BURN_DISC_FULL) {
@@ -4345,7 +4357,7 @@ int Cdrskin_report_disc_status(struct CdrskiN *skin, enum burn_disc_status s,
    printf("-unknown status code-\n");
 
  if(flag&2)
-   return(1);
+   return(1+pseudo_appendable);
 
 #ifdef Cdrskin_libburn_has_get_profilE
  if((s==BURN_DISC_FULL || s==BURN_DISC_APPENDABLE || s==BURN_DISC_BLANK ||
@@ -4367,7 +4379,7 @@ int Cdrskin_report_disc_status(struct CdrskiN *skin, enum burn_disc_status s,
  }
 #endif
 
- return(1);
+ return(1+pseudo_appendable);
 }
 
 
@@ -5077,9 +5089,10 @@ int Cdrskin_blank(struct CdrskiN *skin, int flag)
  char *verb= "blank", *presperf="blanking", *fmt_text= "...";
  char profile_name[80];
  static char fmtp[][40]= {
-                  "format_default", "format_overwrite", "deformat_sequential",
+                  "...", "format_overwrite", "deformat_sequential",
-                  "format_defectmgt", "format_by_index", "format_if_needed"};
+                  "(-format)", "format_defectmgt", "format_by_index",
- static int fmtp_max= 6;
+                  "format_if_needed", "as_needed"};
+ static int fmtp_max= 7;
 
  start_time= Sfile_microtime(0); /* will be refreshed later */
  ret= Cdrskin_grab_drive(skin,0);
@@ -5093,14 +5106,11 @@ int Cdrskin_blank(struct CdrskiN *skin, int flag)
    burn_disc_get_profile(skin->grabbed_drive,&profile_number,profile_name);
 #endif
 
- if(skin->verbosity>=Cdrskin_verbose_progresS)
+ ret= Cdrskin_report_disc_status(skin,s,
-   Cdrskin_report_disc_status(skin,s,1);
+                           1|(4*!(skin->verbosity>=Cdrskin_verbose_progresS)));
+ if(ret==2)
+   s= BURN_DISC_APPENDABLE;
  do_format= skin->blank_format_type & 0xff;
- if(do_format == 1 || do_format == 3 || do_format == 4 || do_format == 5 ||
-    do_format ==6) {
-   verb= "format";
-   presperf= "formatting";
- }
 
 #ifdef Cdrskin_libburn_has_pretend_fulL
  if(s==BURN_DISC_UNSUITABLE) {
@@ -5121,11 +5131,11 @@ int Cdrskin_blank(struct CdrskiN *skin, int flag)
      do_format= 4;
    else
      do_format= 1;
- } else if(do_format==6) { /* format_if_needed */
+ } else if(do_format==6 || do_format==7) { /* format_if_needed , if_needed */
    /* Find out whether format is needed at all.
       Eventuelly set up a suitable formatting run
    */
-   if(profile_number == 0x14) { /* sequential DVD-RW */
+   if(profile_number == 0x14 && do_format==6) { /* sequential DVD-RW */
      do_format= 1;
      skin->blank_format_type= 1|(1<<8);
      skin->blank_format_size= 128*1024*1024;
@@ -5139,16 +5149,24 @@ int Cdrskin_blank(struct CdrskiN *skin, int flag)
        skin->blank_format_size= 0;
      }
 #endif
-
+   } else if(do_format==7) { /* try to blank what is not blank yet */
+     if(s!=BURN_DISC_BLANK) {
+       do_format= 0;
+       skin->blank_fast= 1;
      }
-   if(do_format==6) {
+   }
+   if(do_format==6 || do_format==7) {
      if(skin->verbosity>=Cdrskin_verbose_cmD)
        ClN(fprintf(stderr,
-       "cdrskin: NOTE : blank=format_if_needed : did not apply formatting\n"));
+        "cdrskin: NOTE : blank=%s : no need for action detected\n", fmt_text));
      {ret= 2; goto ex;}
    }
  }
 
+ if(do_format == 1 || do_format == 3 || do_format == 4) {
+   verb= "format";
+   presperf= "formatting";
+ }
  if(do_format==2) {
    /* Forceful blanking to Sequential Recording for DVD-R[W] and CD-RW */
 
@@ -7196,6 +7214,9 @@ set_blank:;
        skin->blank_format_type= 2;
        skin->blank_fast= 1;
        skin->preskin->demands_cdrskin_caps= 1;
+     } else if(strcmp(cpt,"as_needed")==0) {
+       skin->do_blank= 1;
+       skin->blank_format_type= 7;
      } else if(strcmp(cpt,"help")==0) {
        /* is handled in Cdrpreskin_setup() */;
  continue;

cdrskin/cdrskin_timestamp.h

@@ -1 +1 @@
-#define Cdrskin_timestamP "2008.04.27.084704"
+#define Cdrskin_timestamP "2008.04.27.140144"